Recent years, in the measurement field and shape measurement field, application of 3-D image meas-urements is demanded. To satisfy the above-mentioned demand, stereo vision with the digital camera,witch has features of noncontact, high safety, and simplicity, is effective. The stereo vision uses the princi-ple of the triangulation, it is necessary to detect the same noteworthy point from two or more images. Inthis thesis, a color-histogram matching technique is proposed to get the measurement point from two stereoimages. Moreover, in order to improve measurement accuracy, the measurement point correction methodwhich uses edge information of the circumference of the measuring point is proposed. By use of the pro-posal technique the user’s operation error can be decreased.

One side, industrial field, the speed and the accuracy of the measurement are often valued more thanthe reductions on the cost side. The 3-D measurement application that uses an industrial digital camera iseffective. However, the handling method of an industrial camera is generally complex, have to use the soft-

修 士 論 文 要 旨電子工学専攻 GraduateCourseofElectronics福成 敏：最適パターン光投影計測に基づく三次元画像計測結果の結合Satoshi Fukunari: Uniting of 3-D Image Measurement Results Based on Optimal Intensity-

ModulatedProjectionPatternTechnique3-D image measurement can measure shape information of an object by using the digital images.

However, only the portion projected on the image is measurable in one image capture. Therefore, it is nec-essary to unite 3-D information measured from two or more images to realize a wide range 3-D measure-ment of object shape. In this research, the measurement results of obtaining from two images are combinedby using 3-D coordinates transformation technique of 3-D measurement results.

The method of Singular Value Decomposition (SVD) is used in this research to request the 3-D coordi-nates space transformation matrix. Moreover, to secure the reliability of the transformation matrix calcu-lated from SVD, many need the measurement point that exists in the measurement result in different coordi-nate space. Therefore, selection of the method of measuring the larger area by one image is important. Inthis research, the Optimal Intensity-Modulated Projection (OIMP) pattern projection technique that canmeasure an area wide to be measured it high-speed and robustly in this research.

In the SVD method, it is necessary to solve the third equation to request a peculiar value. Therefore,the detection of a peculiar value is tried by using Newton method in this research. Newton method is atechnique of the equation system method algorithm by the iteration method, and linear etc. have an effectivefeature of not being especially demanded about the equation. However, cancellation of significant digitsoccurs when the computer calculates and the detection accuracy decreases. Or, when detecting it in thelarge range, large time is necessary. And, it proposed the algorithm that prevented cancellation of signifi-cant digits and the algorithm to which the range of the retrieval was able to be reduced.

This thesis is composed by four Chapters. Chapter1describes the basic principle of 3-D image meas-urement, the measurement principle using pattern projection technique, and the measurement principle us-ing OIMP technique, etc. Chapter 2 describes the expression and the computational method of the move-ment of the model in a 3-D space, to analyze the movement of the unknown between the measurement re-sults. And, the results of experimenting on the characteristic of the rotation procession who calculated byusing the singular value decomposition as a preliminary experiment are shown. Chapter 3 describes the3-D reappearance of the uniting results by using presented uniting method and OpenGL. Chapter 4 sum-marizes this research, and describes future tasks.Keywords: 3-D measurement, Image, Projection pattern, SVD, Uniting, Newton method

吉松弘師：三次元画像計測アプリケーションおよびカメラコントロールモジュールの開発Hiroshi Yoshimatsu: Development of 3-D Image Measurement Application and Camera Con-

trol Module

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ware of the attachment for the camera control; there is a difficult problem with on-line measurement thatcooperates with the measurement module originally developed. In this research, because the camera can beeasily handled even in an industrial field, communication method and picture method and resolution, thecamera control module to which two or more cameras can be controlled by one application is developed.

This thesis is composed by four chapters. Chapter 1 describes the basic principle and the applicationof the 3-D image measurement. Chapter 2 describes the concrete content, the feature, and the developmentmethod of the 3-D image measurement application. Afterwards, the semiautomatic associating technique ofthe measurement points that uses the measurement point image coordinates correction technique and thecolor-histogram is described, and the experiment results are shown. Chapter 3 describes the camera controlfunction necessary for 3-D image measurement, and shows the adjustment results of the camera and a con-sideration. Chapter 4 summarizes this research, and verifies the practicality of proposed 3-D image meas-urement application and camera control module by the experiment.Keywords: Image, 3-D measurement, Stereo vision, Camera control, Module

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機能材料工学専攻 GraduateCourseofFunctional MaterialsEngineering石澤夏希：MALDI-TOF MSを用いたアルキルフェノールポリエトキシレート分解微生物の分離

と同定Natsuki Ishizawa: Separetion and Identification ofAlkylphenol Polyethoxylate degrading Bac-

teriabyMatrix-AssistedLaserDesorption IonizationMassSpectrometrySuch the alkylphenol polyethoxylates (APEOs) as nonylphenol polyethoxylates (NPEO) and octylphe-

nol polyethoxylates (OPEO) are excellent detergent and are used worldwide in large amount. The APEOsreleased into the environment are known to be degraded to their short chain homologs and their correspond-ing carboxylic acids by the environmental microbes. The short chain homologs and the original alkylphe-nols are estrogenic and cause endocrine disrupting effects to aquatic organisims. We have been investigatedfor the degrading microbes in the environment. This study focused on the microbes that distribute in creekthat spread over Saga plain. The enrichment culture using APEO as a sole carbon source was done forcreek water. The plate culture afforded many colonies of the microbes that have APEO degrading ability.Although the colonies were conventionally screened by comparing their appearance, size and others, it isknown that the different microbe can form colonies quite similar to each other. We measured the Matrix-Assisted Laser Desorption Ionization-Time of Flight Mass Spectrometry (MALDI-MS) spectra of all colo-nies and made grouping by comparing the MALDI-MS spectra. It becomes apparent that the MALDI-MSis very powerful not only to identify the microbes but also to screen the characteristic microbe in the envi-ronment.Keywords: alkylphenol polyethoxylate, biodegradation, separation and identification, environmental fate,

MALDI-MS, endocrine disrupter

久家裕貴：Agコロイド溶液を使用するアジン化合物の SERSYuuki Kuge: Surface-enhancedRamanscatteringofsome azine compoundswithAg colloidal

solutionThe surface-enhanced Raman scattering (SERS) spectra of azine compounds, uracil, phthalazone, 2,3-

dihydroxyquinoxaline and phthalic hydrazide in Ag colloidal solution were observed. Energies of modelsfor the molecules adsorbed on Ag colloidal particles were calculated, and the stabilization energies showedthat these molecules adsorbed on the Ag colloidal surfaces.

The diluted solutions of these molecules were added to the Ag colloidal solution, and it was examinedto what extent of dilution the Raman bands were observed. On the basis of the experiments, it was clarifiedthat these azine compounds were detected in such dilute solutions as the concentrations of about 2×10－6mol/l by observing the Raman bands of SERS spectra using Ag colloidal solution.Keywords: azine compounds, silver colloidal solution, SERS spectra

副島英子：密度汎関数法による基準振動の計算値に関する新しい補正方法EikoSoejima: Thenewcorrectionmethod forthe normal vibrational frequencies calculatedby

thedensityfunctional theoryAfter the vibrational spectra of molecules are measured, the assignments of normal vibrational modes

for the spectral bands are performed by the aids of some calculations. Although the correspondences in ob-served values and calculated values of normal vibrational frequencies using the Gaussian program are be-coming better, differences still exist between the observed and the calculated values.

In this research, the scale factors for the calculated values of frequencies and the correction method bythe use of quadratic correction equations were newly presented.

These results were obtained by calculating the 3803 normal vibrations of 256 molecules by the densityfunctional theory (the B3LYP method) with the basis sets 6-311++G(d,p), 6-311G(d,p), 6-31++G(d,p), 6-31G(d,p), and 6-31G(d).Keywords: Density Functional Theory, Normal Vibration, Scale Factor, Frequency Correction, Gaussian

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谷 昭幸：焼酎蒸留廃液の資源化に関する研究Akiyuki Tani: Researchontheeffectiveuse fortheShochudistillationwaste fluid

A variety of Shochu containing Awamori are the traditional spirits in Japan. It is said that the spiritsare better for health than other non-spirits. The consumption of the Shochu increased by a factor of 1.5 inten years from 1995. It means the same rate of increase of the distillation waste fluid that results along withthe Shochu production. The waste fluid has been used as the fertilizer, the raw material of methane fermen-tation and compost, the feedstuff and so on, and the rest of the waste fluid has been dumped in the sea.

The London Convention 1972 is an international treaty that limits the discharge of wastes that are gen-erated on land and disposed of at sea. The protocol to the London Dumping Convention in 1996 which ob-ligates Japan, and other signatories, to conduct environmental impact assessments of marine dumping ofwaste materials. When the protocol will come into effect in near future, the dumping of the distillationwaste fluid in the sea will be prohibited at the same time. It is, therefore, needed to dispose the waste fluidon land.

The waste fluid accompanying with the Mugi-shochu production (a kind of Shochu made from barley)is known as a viscous liquid and it has high BOD value (60,000～80,000 ppm) and SS value (20,000 ppm)and low pH value (3～4). As the difficulty of solid-liquid separation of the waste fluid is the bottleneck ofadvanced use for the fluid, it is necessary to establish a new and facile separation method.

Then we started to establish the facile solid-liquid separation method using most dirty Mugi-shochuwaste fluid obtained from HIKARI-SHUZO CO. Ltd. The waste fluid was centrifuged at 2,000 g for 5 min.The supernatant was not clear and the transmittance of the supernatant was below 1% at 600 nm. Then theobtained supernatant was treated with several kinds of additives. A white carbon additive #80 producedfrom silicone dioxide was most effective in subsequent centrifugal separation. On the hand, an additive B-419 produced from perlite, an amorphous volcanic glass was the most effective additive for filtration. Fil-tration seems to be excellent for scale up treatment. The amount of clear supernatant obtained by filtrationtreatment was 70% of the starting weight and the dry weight of the precipitates at the first centrifugal stepwas about 6%. The residual liquid was contained in the precipitates. The clear supernatant contains about1,000 ppm of citric acid and the acid may be the reason of its low pH value. The precipitates were carbon-ized at 800°C in an electric furnace to give charcoal. The charcoal showed absorption activity to iodine by80 mg/g and to methylene blue by 3 mg/g

箱田晋輔：MgB2超伝導バルクの臨界温度・臨界電流特性の評価ShinsukeHakoda: Estimation ofcritical temperature and critical current characteristics in su-

perconductingMgB2bulkIn this study, superconducting MgB2 bulks were prepared by the PIT (powder in tube) method. The

stainless tube (SUS316), which is considered playing an important role in the process of composing a pureMgB2, was used in the sample preparation. The MgB2 bulk samples with high density and high qualitywere obtained by employing an new approach, in which the stainless tube was pressed with high pressureand precursors were arranged based on the concept of the diffusion.

In order to precisely and efficiently estimate the critical temperature (TC) and the critical current den-sity (JC) in the samples, the dedicated programs of ac susceptibility measurement and ac inductive method(Campbell method) were developed by using LabVIEW programming environment running on a WindowsPC. The result of TC measurement shows that all the samples have a TC value of about 40K, accompaniedwith a narrow transition less than 2K. On the other hand, the JC value in the sample processed under the op-timized conditions turned out to be as large as 4 x 109 (A/m2) at 30K and 0.2T, which approximates to thechampion data reported recently by some other groups.

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柳 里恵：土壌細菌によるハロゲン化芳香族化合物の分解SatoeYanagi: Degradationofhalogenatedaromatic compoundbyisolatedbacteria

The halogenated aromatic compounds have been used for agricultural chemicals and bactericide, andthese have the high toxicity. There is fear of influence to an ecosystem as the environmental pollutants be-cause these are stable and have residual tendency at ground. Therefore 2,4-dichlorophenoxyacetic acid(2,4-D) which is artificial phytohormone and 2,4,5-trichlorophenoxyacetic acid (2,4,5-T) were used as amodel for study of degrading aromatic compounds. 19 kinds of isolated bacteria could be separated usingmedium with 2,4-D as a carbon source 71 soil samples. Almost isolated bacteria could degrade 60-80% of2,4-D in 10 days, while no 2,4,5-T degrading bacteria could be isolated from the same samples.Keywords: Halogenated aromatic compound, isolated bacteria

山下恵介：表面増強振動分光法を利用する高感度検出の検討KeisukeYamashita: Examination of sensitive detection using surface-enhanced vibrational

spectroscopyThe purpose of this study is to perform the more sensitive SERS detection using Ag particles than the

SERS in Ag colloidal solution. Because !-picoline molecules are well known to adsorb on the surfaces ofAg particles and to give the clear SERS spectra, !-picoline was picked up among the pyridine derivativesand used as the testing molecule for SERS detection on the surfaces of Ag particles.

Various kinds of Ag surfaces were tested whether the SERS phenomena were shown or not. And theRaman spectra was slightly enhanced on the surface of Ag particles prepared by silver mirror reaction.Keywords: sensitive detection, surface enhanced Raman scattering, !-picoline, Ag particles,

silver mirror reaction

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A microcutting tool mede of single crystal diamond is commonly used for the continuous cutting ofnonferrous metals such as aluminum and copper alloys. However, the chipping in cutting edge caused bycrystal cleavability is conspicuous, so that the tool can’t be adapted to the interrupted cutting of nonferrousmaterials.

Tool manufacturing technique that can fabricate the sharp cutting edge of a micro-ball endmill 50 µmin tool tip radius was developed using cemented carbide, cBN, and PCD as a tool material to overcome theproblem of single crystal diamond. In addition, machining tests of interrupted cutting using micro-ball end-mill were conduced to the nonferrous and hard materials.

知能機械工学専攻 GraduateCourseofIntelligentMechanical Engineering綾香和巳：非線形超音波を利用した微小クラック検出法の研究Kazumi Ayaka: Development ofevaluationmethod ofa minute crack by using a nonlinear ul-

trasonicwaveWhen an ultrasonic wave is injected into a crevice, if the opening width of the crevice is almost on the

same order as the displacement of the ultrasonic wave, the crevice between the cracks may close or open.As a result, the waveform of the ultrasonic wave becomes different from that of the injected ultrasonic wave.Therefore, the incident ultrasonic wave has harmonic frequency components for the same as ultrasonicwave that has penetrated into the material. However, the nonlinearity of a solid material is very small com-pared with that of a liquid medium, and a liquid medium with a high nonlinear efficiency has to must beused as a coupling medium, when we use a commercial type ultrasonic transducer. We then tried to use anelectromagnetic acoustic transducer stet does not require a coupling medium.KeyWords: Harmonic frequency, Nonlinear ultrasonic wave

大川内良彦：自然対流を利用した液体の粘度測定に関する研究YoshihikoOkawauchi: STUDY ON VISCOSITY MEASUREMENT OF LIQUID BY NATURAL

CONVECTIONFor the purpose of developing a practical measurement method of thermal conductivity and viscosity

of liquids, the authors have proposed a simple method using natural convection around a uniformly heatedvertical plate. Based on the method, those physical properties can be evaluated by shear force measurementby a digital electric balance and mean temperature difference measured by thermocouples. To verify the va-lidity of the former method, a series of experiments have been performed so far for six kinds of silicone oil.Viscosity of liquids measured with newly prepared insulated heating plate unit. And fairly good resultshave been obtained for the kinematic viscosity ν of 10, 100 and 1000 mm2/s. However, concerning thelower kinematic viscosity ν of 1, 2 and 5 mm2/s, measured values were about two times higher than thoseput on a catalogue.

To investigate the cause, two kinds of measuring vessels of Type-1 and Type-2 were prepared in thepresent study, which were designed to reduce the thermal plum effect. As a result, the effect of the thermalplume has been reduced almost by half. However, a few corrections are necessary to make at low viscosity.Therefore, measuring vessels of Type-3 was produced for correction. The approximation curve is made byusing the measurement data obtained by Type-3.

On the other hand, measurements of viscosity of liquids by using mean temperature difference havebeen performed to verify the validity of the latter method. From comparison of the measured results on thesame to liquid, a fairly good agreement has been obtained. Furthermore, the measuring system is moresimply composed.KeyWords: Natural Convection, uniformly heated vertical plate, mean temperature difference, shear force,

viscosity

岡崎隆一：焼結ダイヤモンド製マイクロボールエンドミルの開発と超精密微細加工への応用Ryuichi Okazaki: PCDMicroBall Endmill usedforMechanical Microfabrication

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It became obvious that a sharp cutting edge without chips could be fabricated when the ultra-fineresin-bonded diamond wheel SD32000P120B was used as a finishing tool to the tool materials with hard-ness less than 30 GPa HV. However, the toughness of the tool materials was not so high that the tool wearwith micro chips generated in the process of interrupted cutting of the Brass 0.98 GPa HV.

On the other hand, it was difficult to sharpen fine diamond grains of poly crystalline diamond 90 to100 GPa HV, so that the sharp cutting edge could not be obtained when the PCD was used as a tool material.However, cutting test revealed that microcutting tools made of PCD were useful for the high-speed inter-rupted microcutting of nonferrous, brittle and hard materials.KeyWords: Microcutting, PCD Tool, Hi-speed Microcutting

Unlike microcutting, microgrinding has a potentiality to fabricate ultraprecision microstructures tohard and brittle materials such as glass and ceramics. However, both the microgrinding tool with superiorwear resistance and mirror-grinding techniques have not been developed so that the microgrinding at whicha tool of small dimeter is rotated in high speed is not employed.

A pressure copy truing that can fabricate sharp cutting edges of diamond grains on a wheel workingsurface into flat was conducted to electroformed diamond tools with fine grains #3000 in mesh size. It wasverified through the truing test that displacement copy truing using grinding tool with fine diamond grainsand superior wear resistance should be employed as a truer for the truing.

Hence, the displacement copy truing using polycrystalline diamond PCD of 0.5 µm in sintered dia-mond grain size was conducted. A truing test to find out the best truing conditions that can fabricate toolworking surface into smooth was conducted by varying surface roughness of the truer, revolution speed ofthe tool and truer, speed of orbital motion of the truer and the wheel depth of cut.

It was verified through the test that the truer surface generated by the electrical discharge machining

澁谷裕作：滴下潤滑下のおけるアルミニウム合金含浸グラファイト複合材料の摩擦・摩耗特性に及ぼす雰囲気湿度の影響

YusakuShibuya: EffectsofEnvironmental HumidityonFrictionandWearCharacteristicsofAl-Si Alloy ImpregnatedGraphite Composite underDrip-Feed Lubricating Con-ditions

Many tribologists have investigated the friction and wear of Al-Si alloy-based composites aiming atthe reduction in weight of sliding materials. Our laboratory focuses on the friction and wear characteristicsof Al-Si alloy impregnated graphite composite (ALGR-MMC) that is expected to be used for such a slidingmaterial. From the previous results, it has been known that under unlubricated conditions the wear rate ofALGR-MMC takes a minimum at the middle range of relative humidity (RH=50-60%) in air. In the presentresearch, the friction and wear characteristics of ALGR-MMC are investigated in connection with environ-mental humidity dependency under drip-feed lubrication of base oil for engines. ALGR-MMC and its basematerials (Al-Si alloy, graphite) were used for pin specimens and a bearing steel for disk specimens. Thefriction and wear characteristics of the pin in sliding contact with the disk under the drip-feed lubricationbefore each test were examined with a change in RH and amount of oil.

From the test results, the wear rate of ALGR-MMC under the drip-feed lubrication is much less thanthat of under unlubricated conditions. In addition, the wear under the drip-feed lubrication is little influ-enced by humidity compared with the wear under the unlubricated conditions. It is known that high relativehumidity prevents the Al-Si alloy from running out of oil. The graphite is superior to friction and wear athigh humidity rather than at low humidity.Keywords: Friction and wear, Al-Si alloy impregnated graphite composite, Amount of oil,

Environmental humidity, Drip-feed lubrication

新家祥之：極微粒ダイヤモンド電鋳工具に対する砥粒平坦化ツルーイング技術の開発Yoshiyuki Shinya: Truing Techniques Fabricating Diamond Grains of Electroformed Diamond

Tools intoFlat

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EDM should be flattened by grinding the truer’s surface in order to diminish scratches remained on the toolsurface. In addition, truing conditions that can fabricate wheel working surface into smooth could be foundout.Keywords: Microgrinding, Diamond Wheel, Truing, Electroformed Diamond Tool,

Electrical Discharge Machining

早田智史：小型羽ばたき飛翔体の研究・開発Satoshi Souda: DevelopmentofFlappingMicroAirVehicle

We have developed an insect-size flapping Micro Air Vehicle (MAV) with hovering ability, having awing length of 5 cm and a total weight of 2.35 g. It can be remote controlled by infrared transmitter. Inter-secting 4 wings, which consist of 2 pairs of wings, showing X-like front view, were driven by a pager motorof 4 mm in diameter. The static thrusts obtained by 4 wings was 30% larger than the doubled value of thoseobtained by 2 wings for the same flapping frequencies. It can be considered to be due to the “Clapping” ef-fects of the butterfly. The electric energy to obtain the thrust of 2.35 g was 0.38 W, which is about threetimes larger than the theoretical value calculated by momentum jet theory. We have developed a new infra-red receiver using microcomputer in order to measure the electric power consumption of the motor in thelevel flight.KeyWords: Flapping, MAV, Hovering, Ornithopter, Insect

山本和幸：サッカーボールに加わる非定常空気力の検討と測定装置開発Kazuyuki Yamamoto: Experimental study of unsteady aerodynamic force on soccer ball and

sensordevelopmentThere are two kinds of shot balls in soccer game. One is well known curved ball, which is explained

by air force of Magnus effects with ball rotation. The other is so called middle shot, which was to be fa-mous is 2006 FIFA world cup. This ball flights in less spinning, but aerodynamic mechanism of this erraticball is not clarified in this stage. In this study, we conducted this problem by free fall examination, imageprocessing using TV sine and wind tunnel experiments. The Strouhal number in flight of soccer ball wasnear around 0.012, which value is smaller than smooth sphere 0.2 in sub-critical Reynolds number. Themagnitude of unsteady air force measured by the wind tunnel experiments explained qualitatively as sameas the real movements in flight. Flow around soccer ball is near around super-critical Reynolds numberflow of smooth sphere by the seam existence of the ball surface. In this flow region, a horseshoe-shapedvortex on the rear surface of the sphere and a pair of stream wise line vortices ranging to far wake. Thisflow was explained by Taneda (1978), and successfully adopted of this soccer ball erratic behavior by thisresearch.Keywords: Soccer ball, Middle shot, Strouhal number, Reynold number, Unsteady air force

三角和広：電磁超音波センサを用いた引張試験中のオンサイト応力評価システムの開発KazuhiroMisumi: Development of a stress measurement system during tensile testing using

theelectromagnetic acoustic transducerWhen a strain gauge is used to measure stress in a tensile specimen, we must affix the strain gauge to

the specimen. We cannot then measure the stress at an arbitrary point on the tensile specimen. Thus, wehave developed system that measures stress during tensile testing using an electromagnetic acoustic trans-ducer (EMAT). First, we developed an EMAT that could drive S0-mode and A0-mode Lamb waves usingthe magnetostriction effect. Next, we designed and fabricated a two-dimensional scanner, its control systemand a tensile specimen for stress measurement. It was confirmed that we could evaluate the stress with highprecision when the traveling direction and displacement direction of the ultrasonic wave were the same. Fi-nally, we demonstrated that we dimensional stress distributions using the new system.Keywords: Stress, Tensile test, EMAT, Acoustoelasticity

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電気工学専攻 GraduateCourseofElectrical Engineering小林祐喜：Si中の過飽和Au不純物の回復過程で発生する微小Au集合体に関する研究Yuuki Kobayashi: Small Au agglomerates generated in the annealing process of supersatu-

ratedAu impurity inSi.Au atom in Si diffuses as interstitial Au and becomes substitutional Au. The Au atom kicks Si atom to

interstitial site or enters into vacancy, and Au atom interchanges its site from interstitial to substitutionalsites. An interstitial Si is generated and a vacancy disappears by this positional exchange. The substitu-tional Au exits in three states depending on the history of heat treatment: low-temperature substitutional Au,high-temperature substitutional Au, and agglomerations of substiturional Au.

Au-pre-indiffused Si sample is reheated by ordinary annealing and continuous annealing methods. Su-persaturated concentration of Au decreases to their thermal equilibrium value. The concentration profilesduring the annealing are measured by secondary ion mass spectroscopy (SIMS) and isothermal capacitancetransient spectroscopy (ICTS). Supersaturated Au diffuses to the surface and shows an out-diffusion profile,and small Au agglomerates are generated and their number and the size depend on the cooling speed andannealing time.Keywords: Au in Si, high-temperature supersaturated Au, out-diffusion profiles in Au, annealing

近藤暢充：磁気特性測定システムの自動化と高精度化に関する研究MasamitsuKondo: AutomationandAccuracyImprovement inMagneticMeasuringSystem

In recent years, the demand of iron loss reduction of the standpoint of energy saving to electrical ma-chinery and apparatus is strong.

For this reason, development of low loss iron core material is performed brisky.In order to advance such research, the magnetizing-properties data of the iron core material under vari-

ous magnetization conditions is required.When based on manual measurement, it is desirable to become complicated by the measurement under

various conditions, and to perform automatic measurement.So, automation of the magnetic measurement system was tackled in this paper.It aimed at everyone’s performing control of a magnetic flux wave by the program of PC simply using

the apparatus which can be constituted.Moreover, since the integrator incorporated into a system was an important portion when it determined

the measurement accuracy of a system, the accuracy examination was also performed simultaneously.Keywords: iron core, automation, magnetic measurement system, magnetic flux wave

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For a practical pattern recognition system, the recognition of a special as well as basic character stringsis both necessary and important. In the latest word processors, it is also possible to print superimposed char-

情報工学専攻 GraduateCourseofComputerScienceandEngineering秋山恒平：インクジェット技術を応用した大島紬染色加工の基礎的な考察Kouhei Akiyama: A Basic Study of Dyeing Process on Oshima-Tsumugi by Applying Ink-Jet

TechnologyThis paper describes some remarkable characteristics about dyeing process by using electro-statically

extracted ink-jet system. A study to promote computerization of surikomi-senshoku into cloth dyeing ingtsumugi industry has been studying lately. A study of dyeing method that uses ink-jet system has been tried.However, the traditional ink-jet system has easily clogged at the nozzle with dye, and not practically avail-able yet. In this study, an application of electro-statically extracted ink-jet system has been tried. This isbecause of big nozzle at inner diameter can be allowed in this system. Since “Tsumugi” was hardly ob-tained at first stage, dye was utilized either on recording paper or on OHP films. It is needed to dye ofabout 1 mm width on tsumugi. We have leared that the recording width of dye become less than 1 mm,which is useful in such purposes. Then, dyeing has been tried by using real Tsumugi at the next stage. Wehave leared that the effectiveness of the Tsumugi dyeing by using electro-statically extracted ink-jet systemwas remarkable of its specific application.Keywords: electro-statically extracted ink-jet method, dyeing processing, Oshima-tsumugi

粟井康全：マップベースキュービックパノラマシステムの開発YasumasaAwai: DevelopmentofMap-BasedCubicPanoramaSystems

A lot of VRML-based virtual environments are open to the public on the Web now. However, it takesa long time to create them and they are far from real images. In addition, it is not easy for novice users tonavigate 3D virtual environments. Therefore, we have developed a map-based cubic panorama systemwhere the panorama-based virtual environments cooperate with a hierarchical map in vector form, and wehave opened it to the public on the Web. This paper proposes a text annotation method for the panorama-based virtual environments, and an annotation support system is constructed. In addition, it proposes amethod that estimates the camera position of a panorama from an existing cubic panorama and the relatedmap without using an expensive positional measuring instrument. Finally, the effectiveness of the methodis shown by experiments.Keywords: panoramas, annotation, camera-position estimation, virtual environments, VRML

于 春雷：３次元仮想環境における自動ウォークスルーChunlei Yu: AutomaticWalk-Through in3DVirtual Environments

The walk-through operation is demanded frequently in 3D virtual environments such as virtual art gal-leries and virtual museums. Since the operation is usually performed by dragging a 2D mouse or pushingarrow keys, it is difficult and time consuming for novice users. Most of existing VRML viewers provide us-ers with the function that sets cameras (viewpoints) to any objects and switches them. However, this func-tion has a problem that a viewpoint moves to the next target object momentarily or unnaturally.

In order to solve these problems, this paper proposes a graph-based automatic navigation method for3D virtual environments that enables users to walk through the shortest path without colliding with otherobjects from a present place to a target object. Moreover, an experimental virtual art gallery is created toshow the effectiveness of our proposed method.Keywords: automatic walk-through, virtual environments, graph, shortest path, VRML

岡部成将：再帰結合をもつ複写学習モデルによる低品質重ね文字列の認識に関する研究SigemasaOkabe: AStudyonRecognitionofLowQualitySuperimposedCharacterStringsUs-

ingaCopy-LearningModel withRecurrentConnections

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acter strings that narrow the interlinear space to the intention. This paper proposes a copy-learning neuralnetwork with recurrent connections allowing the recognition of superimposed character strings throughlearning of the basic character strings alone. In the computer simulation result, the following are consid-ered: Number of character string and effect of the length of the character on the recognition and generaliza-tion ability for unlearning character string. Based on the results of the recognition experiment for superim-posed character strings, the effectiveness of the proposal model is shown.Keywords: recurrent network, character recognition, superimposed character strings

岡松恵太：音刺激のテンポが及ぼす癒し感と心拍数の関係に関する研究KeitaOkamatsu: StudyonRelation betweenHeart Rate and Healing Impression by Tempo of

SoundStimulusThat stress is reduced in sedative music is reported by previous study that examined about the healing

impression by music. However, coherent opinion is not yet reported. It is because previous study evaluatedmusic in itself. Therefore this study experimented on two kinds that focused on tempo that was one of thecomponents of music. In the first experiment, the subject evaluated healing impression about tempo of sim-ple sound. In the next experiment, the subject evaluated healing impression about the musical tempo, in ad-dition we measured the heart rate of subject during experiment. As a result, sound stimulus to have tempoequivalent to heart rate at the time of rest showed tendency healed most. Result of this study is useful forcomposition of healing music.Keywords: Healing Impression, Sound Stimulus, Tempo, Heart Rate, Healing Music

金 万福：複写学習モデルによる文字列の復元に関する研究MannhukuKin: AStudyonRestorationofCharacterStringswithaCopy-LearningModel

For a practical pattern recognition system, low quality character string pattern restoration is necessaryand important. Currently, the Elman network is proposed as one of the techniques for learning and recogni-tion of character string patterns. However, the conventional network has a fault whereby the recognitionrate for missed character strings decreases. Moreover, the auto-associative neural network is not enoughstudied about memory and restoration rate of a character string.

This research examines the influence of the length and the number of character strings on the copy-learning process, and reports the restoration ability in terms of missed character strings.Keywords: neural network, copy-learning, low quality character strings, restoration

桑水流直矢：インクが記録物体に着弾する瞬間の振動音検出に関する基礎的な検討NaoyaKuwazuru: ABasic StudyofVibrationCharacteristics at the Ink-Jet Impact onRecord-

ingObjectsThis paper describes characteristics of the vibration occurred by an ink impact on the recording objects.

There are no researches reported about vibration of an ink impact on the recording objects. This study isone of the new fields connected to both ink and vibration technologies. When an industry application ofink-jet technology is considered, it has to think about the proper flight control of ink. This vibration mustbe paid attention when ink flight occurred some variations at the impact on the recording objects. As a re-sult, we have learned that each variation has being different of the behavior at the ink impact among record-ing materials.Keywords: Ink, Vibration, Recording Objects

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末廣光司郎：視覚モデルと離散ウェーブレット変換を応用したフラクタル画像符号化に基づく電子透かし法の性能評価に関する研究

KohshiroSuehiro: StudyonDigital Watermarking Based on Fractal Coding Using HumanVis-ual SystemModel andDiscreteWaveletTransform

A new digital watermark technique based on fractal image coding is proposed. We use the low fre-quency area in the discrete wavelet transformation (DWT) as a way of the robust embedding watermark.For improving the watermarked image, another technique, the human visual system model, is used. Thesimulated results show the good watermarked image quality and the good robustness for JPEG compressionand JPEG2 compression.Keywords: Digital Watermarking, Fractal Coding, Discrete Wavelet Transformation,

Human Visual System Model, Security

只松義喬：通信トラヒックの相関構造を利用した通信品質の劣化検出YoshitakaTadamatsu: QoSDegradationDetectionthroughTrafficCorrelationAnalysis

In this thesis, we report it about relations of deterioration of an image and correlative structure whenwe perform streaming delivery. We capture traffic data flowing through a network and we make the data agraph in a VT (Variance-Time) plot and examine correlative structure. We give a network various back-ground load to let an image deteriorate. Deterioration of an image changed by a ratio of load and compareda difference of correlative structure. In addition, we examined influence when we changed buffer timewithout giving load. As a result, we understood that we could detect presence of deterioration of an imageand a difference of buffer time by a difference of correlative structure.Keywords: streaming delivery, deterioration of an image, correlative, VT plot

直江弘次：学習履歴マイニングによる学習支援手法に関する研究Koji Naoe: StudiesonLearningSupportMechanismswithLearningHistoryMining

The e-learning systems have been widely used in university education, technical training or personallearning. However, it is important to offer teaching materials and exercises which are suitable to eachlearner respectively. In this paper, we discuss the mechanisms of providing learning support with learninghistory mining. We report the detail about implementation of those functions in e-learning system Moodleand show the results of their applications.Keywords: Learning History Mining, e-learning, data mining, LMS

新名貴浩：組込み用ミニオペレーティングシステムの開発TakahiroNiina: DevelopmentofSmall OperatingSystemforEmbeddedComputerSystems

Recently, CPUs structured by x86 architecture gradually come to used on embedded systems. ThoseCPUs are not only available high performance power, but also enable to port programs and to use peripher-als developed for IBM-PC so far, but CPUs had a weak point of high power consumption. As new x86-CPUs suppressed power consumption are being developed, they will be more adopted on embedded sys-tems. In order to develope embedded computer systems easily, we need a small operating system whichworks as an interface between CPU and application programs. So we have developed small operating sys-tem for CPU of x86-architecture. The system have functions of memory management, graphical user inter-face, memory protection by using descriptor and interrupt management.Keywords: Embedded systems, Operating System, x86 architecture

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牧野好裕：離散ウェーブレット変換と自己組織化ニューラルネットワークを用いたロゴ透かし法に関する研究

YoshihiroMakino: Study on Logo Watermarking Using Discrete Wavelet Transform and Self-OrganizationNeural Network

This thesis presents a new approach of logo watermark based on self-organization neural network anddiscrete wavelet transform. The self-organization neural network is used to obtain the indexes of com-pressed logo image. The indexes are embedd to the original image as the watermark. The discrete wavelettransform is applied for improving the robustness of various attacks like JPEG compression. Moreover, theextracting ratio of watermark is improved by applying the huffman coding. Simulation results show the ef-fectiveness concerning the watermarked image quality and the robustness of JPEG compression.Keywords: Logo Watermarking, Self-Organization Neural Network, Discrete Wavelet Transform,

Huffman Coding

李 洋：ランダムフラクタルによる地形の自動生成Li Yang: AutomaticTerrainGenerationwithRandomFractals

In the world of VRML/X3D that is an international standard of Web3D, the “ElevationGrid” node isusually used to express terrains, but it requires a huge amount of altitude data for a large size of terrains. Ifterrains are generated automatically using a random fractal, the data size can be greatly decreased. In thispaper, four shapes of base planes to that the middle point displacement method is applied are examined andcompared. Moreover, this paper examines and compares the features of automatically generated terrainswhen the decrease equation of the maximum value of the uniform random number used in the middle pointdisplacement method and the initial and final value of the maximum value are changed respectively. Fi-nally, new VRML node “FractalTerrain” is defined using “PROTO” of the VRML, so that everyone can eas-ily make use of the terrain generation function that is implemented in our experimental system.Keywords: middle point displacement, fractal, terrain, VRML, JavaScript

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情報通信工学専攻 GraduateCourseofCommunicationand InformationNetworking池田 誠：ヒューリスティック手法を用いた次世代ネットワークのアーキテクチャとアルゴリズ

ムに関する研究Makoto Ikeda: Architectures and Algorithms for Next Generation Networks Using Heuristic

MethodsNetworks of today are going through a rapid evolution. In the last few years we have observed an ex-

plosive growth of multimedia computing, communication and applications over the Internet. Also, in wire-less networks, the speed is increasing and in near future will be over100Mb/s. In order to deal with increas-ing speed of today networks, the algorithms, methods and mechanisms should have a fast decision, be flex-ible, adaptive and intelligent. The architectures and algorithms in high speed networks become very com-plex and it seems imperative to focus on new models and methods which can enable the network to performadaptive behavior in order to manage the increasing usage demands, provide support for a significant num-ber of services, guarantee their QoS, and optimize the utilization of network resources. In our previouswork, we proposed an intelligent routing and CAC strategy using cooperative agents. However, we onlyconsidered the time delay for the routing. In this work, we extend our previous work by proposing and im-plementing new algorithms based on Fuzzy Logic (FL) and Genetic Algorithm (GA) which use for CACand routing many QoS parameters. By using a cache method, the routing algorithm can converge very fast.The simulation results show that proposed framework has a good performance and can be sealed up by in-creasing the number of domains.Keywords: Traffic Control, Multimedia Communication, QoS Routing, Intelligent Algorithms, Agents

伊藝 元：同一平面上で任意の角度をなす２つのくさびによる回折波の解析GenIgei: TheAnalysisofFieldsDiffractedbyTwoWedgeswithArbitraryAngle inaPlane

The analysis of electromagnetic waves propagating in urban areas is not easy because they are compli-catedly scattered by walls and edges of buildings. However, it is important to estimate propagation path inurban areas from the viewpoint of an effective utilization of the radio wave resources. So far we have inves-tigated the diffracted fields by the parallel edges of the building roof. These results, however, are not suffi-cient, since the edges of buildings are not always parallel.

In this paper, we analyze the diffracted fields by two edges which form two wedges on a building roofwith an arbitrary angle. The numerical calculations are carried out for the perfect conductor and concretewedges considering the effect of the reflection from a ground plane. Numerical results show that the or-thogonal field components become strong when the angle of the two edges increases.Keywords: GTD, slope diffraction, ground reflection

大庭将平：CIP法による媒質境界を含む１次元電磁波伝搬解析Shohei Ohba: AnalysisofPlaneWavePropagationthroughMediumBoundarybyCIPMethod

In recent numerical analysis of electromagnetic wave analysis, Method of Moment, Finite ElementMethod and especially, Finite Difference Time Domain (FDTD) Method are used in general. The Con-strained Interpolation Profile (CIP) Method is newly gathering interests, because the error diffusion byspace discretization is smaller than FDTD method. The CIP is a kind of differencial method like FDTD, butsolving advection equations which are derived after operations of describing equations of problem. The cal-culation is done for the value of function and the derivative at each discrete grid point by using cubic poly-nomial.

In this master thesis, electromagnetic plane wave propagation is analyzed by CIP method. Reflectionand transmission characteristics at dielectric medium boundary are calculated for several cases, and com-pared with results of FDTD method and exact solutions in detail. Throughout the calculated results, a crite-rion for time and space discretization in CIP method was found with respect to Courant criteria in FDTD.Keywords: CIP Method, FDTD Method, Advection Equation, Numerical Diffusion

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坂崎俊介：ユーザの嗜好を考慮した洋服画像検索システムの研究ShunsukeSakazaki: Cloth ImageRetrieval SystemconsideringUser'sPreference

Recently, digital cameras and digital cellular phones with digital cameras have been widespread. Digi-tal image data from these cameras and other video sources are processed and stored in the databases orcomputers. There are too ways to retrieve the target image in the large amount of images; one ways imagecharacterization of the image itself and the other dose meta data of the images.

This paper presents a new Clothes Image Retrieval System which uses the former image characteristicsof the customers preference. By changing the threshold values of the RGB color range corresponding thecustomers preference, the hit ratio of the target image can be improved and searched effectively. Experi-mental results of the prototype retrieval system show better retrieval characteristics and effectiveness of theproposed retrieval image algorithm is confirmed.Keywords: Image retrieval, Clothes, Color Information, Customer preference, Feature extraction

佐藤丈紀：無線セルラーネットワークのためのファジィハンドオーバアルゴリズムに関する研究Takenori Sato: AFuzzy-basedHandoverAlgorithmforWirelessCellularNetworks

In recent years, the wireless mobile networks and devices are becoming increasingly popular to pro-vide users the access anytime and anywhere. The mobile systems are based on cellular approach and thearea is covered by cells that overlap each other. In mobile cellular systems, when the frequency band is high,because of the existing obstacles, the intensity of electric field decreases. This causes the dead spot phe-nomenon. To deal with this issue, when there are more than two Base Stations (BS) that communicate witha mobile terminal, the selection of BS for communication by the handover algorithm is a very importantproblem. The handover process refers to the mechanism by which an ongoing call is transferred from oneBS to another. In the previous work, during the handover process if the threshold is small, the ping-pongproblem happens.

In this thesis, we propose a new handover algorithm based on fuzzy theory. The handover decision isdone by BS based on the received signal strength of mobile terminal. In the simulations, for the measure-ment of the field strength we employ a simplified model for propagation in urban areas considering only thedirect and reflected waves. We set up the parameters for BS and mobile users and investigate the behaviorof the mobile users for different scenarios. The performance evaluation via simulations shows that the pro-posed system can avoid the ping-pong effect and can decrease the network load.Keywords: mobile telecommunications, handover, fuzzy theory, random walk

高濱聡一郎：Ｓ字形曲がり廊下を中央に有する建造物内の電波伝搬解析Soichiro Takahama: Analysis ofElectromagneticWave Propagation inside a Structure Having

anS-typeShapedPassageThe aim of this paper is considering electromagnetic wave propagation inside a structure, which has an

S-type shaped passage with shield walls containing frameworks. The S-type shaped passage is one of thecomplex structures that are applied in many buildings recently. To consider the propagation of electromag-netic waves when line sources are located inside such S-type shaped passages are very important for devel-opment of mobile technologies. In this work, the walls of the S-type shaped passages are defined the shieldwalls which contain frameworks. The study has been progressed by comparing the numerical findings ob-tained by numerical analyses and experiment using scaled models. Note that, the experiments has been car-ried out supplying microwaves as a line source inside the scaled model whose passages are produced byconcrete which is a famous building material. Note also that, the FVTD method has been applied to numeri-cal analyses.Keywords: Analysis of Electromagnetic Wave Propagation, S-type Shaped Passage, Propagation Experi-

ment, FVTD Method

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中村暢大：３次元ビデオストリーミングシステムの提案と実装NobuhiroNakamura: Proposal and Implementationof3DVideoStreamingSystem

Network based communication tools become very popular in recent years. The users are increasing tospread of the Internet. These tools provide communication facilities for the users distributed in the world.However, these tools have not come to feel talking face-to-face with the other users at the same plase. In or-der to facilitate a 3D audiovisual communication with anyone, 3D video streaming system is proposed. Inthis paper, we show the implementation of our system and the comparison with other communication tools.Keywords: 3D Video, 3D Audio, Computer Vision

長田陽成：２次元電磁波伝搬へのCIP法の適用に関する研究Yosei Nagata: Study on Application of CIP Method for Two Dimensional Electromagnetic

WavePropagationIn this master thesis, CIP method was applied to solve propagation of electromagnetic wave in multi-

dimensional space with medium boundary. As an example, TM wave propagation in two-dimensional spacewas converted into advection equations and analyzed numerically by CIP method, considering treatment ofthe values on boundary. From comparison of the simulation results with FDTD analysis, the electric fieldprofiles of CIP method have shown good agreement with the results of FDTD analysis.Keywords: CIP Method, Electromagnetic Wave Analysis, Multi-dimensional Analyses

根本理絵：フォトニック結晶導波路のマイクロ波モデル実験RieNemoto: Experimental StudyofPhotonicCrystalWaveguide inMicrowaveFrequency

Photonic crystal structure and its application will be promised key devices for future photonic network,due to its unique propagation characteristics based on photonic band gap originated from the periodic struc-ture.

In this master thesis, propagation and transmission characteristics of photonic crystal waveguide,which was realized by line defect in the periodic structure, are experimentally studied. First, a model oftwo-dimensional photonic crystal waveguide in 4 GHZ microwave frequency, which was made of alumi-num plate and ceramic dielectric, was fabricated. The characteristics were measured for following struc-tures; (1) single, straight waveguide with/without absorber, (2) cavities in waveguide, (3) directional coupler,(4) bent waveguides.

In experiment (1), the dispersion curve was evaluated and the stop band was observed. In (2), the reso-nance frequencies for a few cavity lengths were observed and Q-value was evaluated. The resonance is wellinterpreted from the wavelength in the waveguide. In (3) and (4), the transmission characteristics were com-pared with the results of FDTD simulation. The results have shown fairly good agreement in (3). Howeverin (4), the stop band was not agreed. Throughout this study, in most cases, the experiment by a model in mi-crowave frequency is helpful to understand the performance of photonic crystal waveguide.Keywords: Photonic crystal, Directional coupler, Resonator structure, Experiment with Microwave Fre-

quency

馬場真一：大規模多地点ビデオ会議システムに関する研究Shinichi Baba: Researchona large-scalemulti-pointsvideoconferencesystem

In this paper, the author proposes a large-scale multi-points video conference system introducing thestream composition method and the speaker specification method. This type of system has two problems.One is increase of packets according to the number of client. The other is a specification of speaker for dis-tributed users. The author finds the number of packets can be reduced drastically to compose the live videostreams and a speaker specification can be supported to play sounds reflecting on its direction and distance.This paper was described these experimentations and a construction of the proposed system.Keywords: Video conferencing system, Streaming technology

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東島基士：無線ネットワークのためのファジィ接続制御に関する研究Motoshi Higashijima: AFuzzyAdmissionControl SystemforWirelessNetworks

The mobile cellular systems are expected to support multiple services with guaranteed Quality of Serv-ice (QoS). However, the ability of wireless systems to accommodate expected growth of traffic load andbroadband services is limited by available radio frequency spectrum. Call Admission Control (CAC) is oneof the resource management functions, which regulates network access to ensure QoS provisioning. How-ever, the decision for CAC is very challenging issue due to user mobility, limited radio spectrum, and multi-media traffic characteristics. To deal with these problems, in this paper, we propose a fuzzy CAC system.We compare the performance of the proposed system with Shadow Cluster Concept (SCC). We evaluate bysimulation the performance of the proposed system. The proposed system has a good behavior on decidingthe number of accepted connections while keeping the QoS for serving connections. Also, it has better per-formance than SCC.Keywords: Fuzzy Theory, CAC, QoS, Heuristic Methods, Wireless Network

日渡裕也：ユーザ適応型コミュニティシステムに関する研究YuyaHiwatashi: StudiesonUserAdaptiveCommunitySystem

This paper presents a new community system which can specify the customers interests or concernfrom the network access history and support the mutual communication among the members. The customerinterests ratio is newly defined in the special fields and can be evaluated quantitatively.

This community system calculates an intensity of the user interests by introducing the Bayesian esti-mation algorithm and classifies the interests fields. Then the interests ratio is also determined by consider-ing the user activities.

The prototype system is configured and the experimental results show the good performance of thecustomer interests. Then the effectivity of the new proposed community system is confirmed by the userquestionnaire.Keywords: Community system, Customers interests, Information sharing, Communication support, User

activity

水田勝人：レーザ誘起衝撃波シミュレーションによる光学的測定法の提案KatsuhitoMizuta: AProposal forMeasurementofLaser InducedShockWavebasedonSimu-

lationIn application of laser induced shock wave for micro surgery, control of the pressure from fiber output

surface generated by pulse laser energy is important. As the conventional experimental measurement, pho-tographs have been repeatedly taken by shadowgraph method through changing the release time of shutterof high speed camera. After the deposition, the shock wave pressure was estimated by many photographswith different release time.

As is confirmed in the shadowgraph method, the shock wave generates the dielectric (or refractive in-dex) profile around the wave front. In this study, measurement of the dielectric profile formed by laser in-duced shock wave through observation of scattered light of continuous reference laser beam is proposed. Itis assumed that the dielectric profile is Gaussian and the scattering of continuous reference beam is simu-lated by two-dimensional FDTD method. As a result, it is confirmed that by observing the change of peaksof scattered reference laser with video image of high speed camera, the relative dielectric constant εr withrange from 3 to 20 could be distinguished. The proposed method will drastically reduce the time and cost ofestimation of pressure of laser induced shock wave.Keywords: Laser, Shock wave, Dielectric profile, Pressure, Optical measurement

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楊 涛：伝播モデルとトポロジーを考慮したセンサネットワークの省エネルギーに関する研究TaoYang: ASimulationSystemforOptimizingEnergyofSensorNetworksUnderDifferentRa-

dioandTopologyModelsThe radio model usually used in most of studies on wireless sensor networks in spherical. This means

that the received power at a certain distance is the same for all directions. But this is not the ease encoun-tered in real hardware. Recently, the importance of considering more accurate models has been shown to bea key factor on establishing the performance of MAC and routing protocols in ad-hoc and sensor networks.In this thesis, we show that the analysis of such a network by simulation is not trivial when one uses morerealistic radio models. We emphasize this problem by comparing the impact of realistic simulations on thestudy of infrastructure trade-offs of sensors networks. As expected, simulations confirm that more advancedsimulation techniques are required in order to take into account wireless channel models and too bound thesimulation time as well. Furthermore, we study the interdependence of these metrics and the scaling factorof the network size and shape, simulation results confirm the fact that the shadowing phenomena, by de-stroying the regularity of the network, reduce the mean distance among nodes and at the same time increasethe interference level and the latency of packet transmission.Keywords: Sensor networks, Routing protocols, Simulation systems, Ns-2, Event-reliability

芳野雄一：周辺大地の媒質定数を考慮した正規化サイト減衰量Yuichi Yoshino: NormalizedSite AttenuationConsidering theMediumConstant ofthe Periph-

eral GroundThe Site Attenuation (SA) and Normalized SA (NSA) are used as a parameter of compatibility of the

open site where leakage electromagnetic waves from electronics and communication devices are measured.Generally, NSA is calculated by GO (geometrical optics) as the transmission loss between the sending andreceiving antennas above an infinite ground plane. However, an open site is constructed on a finite conduct-ing ground plane. Therefore, diffracted fields from the edges of the finite ground plane and its peripheralground should be considered.

In this paper, the effect of size of rectangular conducting plane on NSA is considered by the Hybridmethod (Moment method + GTD (Geometrical Theory of Diffraction)). And NSA is calculated numericallyconsidering the peripheral ground, then the results are compared NSA on an infinite conducting plane andthe rectangular conducting plane which is floated. These results show that the rectangular conducting planeon the ground is understood, for both horizontally and vertically polarized waves, the effect of edge diffrac-tion is small. And as steadily enlarging the conducting plane, the effect of the edge diffraction becomessmall. The influence of the edge diffraction on the dry ground is larger than on the damp or standard ground.Keywords: Open site, NSA, GTD, Moment Method, medium constant

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管理工学専攻 GraduateCourseofManagementandSystemsEngineering王 嵐：インターネット時代における決済サービス――日本と中国の決済事情について――WangLan: Settlementservices inthe Internetage

――AboutthesettlementcircumstanceofJapanandChina――Development of information technology in the latter half of the 20th century has been remarkable. Be-

cause Internet spreads rapidly, the whole business system and an idea of consumption by people havechanged amazingly. Many of people have a tasted the new business activities through Internet, and a do-main of the settlement to be accompanied with for business necessarily at the same time brings a big change.Development of electronic commerce depends on an ideal method of a settlement greatly, and the securityon Internet and the effective settlement methods become essential.Keywords: Internet, Internet banking, electronic money, electronic commerce, the settlement, electronic

settlement

清水洋輔：技術者教育における学習環境のモデリングYosukeShimizu: Modelingoflearningenvironment inengineereducation

The interactive system is the practical and structural learning environment and its subject is the learner.And it’s essential that the learner and the teacher gain the autonomy. In this research, we evaluate structur-ally the essences that arise from the group ideas of the learner side, the teacher side, and the managementside. Also, we create the interactive system model that has the main three issues, Knowledge creation,Maintenance of motivation, and Management. The base of Design of the Interactive-System is cognition-style, Spiral structurizing education and power base.Keywords: Engineer education, learning environment, thought model, communications

津川智行：ブロック押しタスクにおける協力行動の生成Tomoyuki Tsugawa: Generationofcooperativeaction inblockpushingproblem

Multi-agent systems have advantages capable of searching goals that are difficult to active by singleagent and shortening time to accomplish the goal by cooperating with other agents. In this paper, the rein-forcement learning algorithm is applied to the multi-agent block pushing problem. The learning process ofthe cooperative behavior of two or more agents was observed in consideration of the depth of agent’s viewand the setting of the reward.

Simulation results show that the number of episode necessary for the generation of the cooperative ac-tion depends on the depth of agent’s view and the best effective strategy after cooperation is to distributeeven reward to each agent.Keywords: Reinforcement Learning, Multi-agent, Q-Learning, Cooperative action

西村宗珠：データフュージョンを意識した衛星画像の重ね合わせ手法に関する研究Hiromi Nishimura: AStudyofRegistrationMethod forSatellite Images Concerned inData Fu-

sionMany types of satellite sensors are developed and available. So, we can obtain many types of image

data. By analyzing those with the data fusion technique, we can acquire the detailed information of theearth’s environment. These images, however, usually have relative discrepancy due to their own geometricalproperty. Therefore, it is necessary to remove the relative discrepancy from the image data before analyzingthem. In this study, we propose an automated registration method for multisensor image data. This methodautomatically estimates the linear discrepancies based on the ratio of spatial resolution, the relative rotationand shift among multisensor images using coss correlation technique. To the remaining discrepancies afterremoving them, corresponding point pairs are automatically generated using the spatial correlation tech-nique. Finally, the image are precisely registered with gradated point pairs. In this thesis, the principle andthe procedure of our proposed method are described. Application result of the method are also shown.Keywords: Remotely Sensed Images, Geometrical Discrepancy , Registration , Data Fusion

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萩尾浩二：株式投資におけるポートフォリオ選定についての一研究Koji Hagio: AStudyonPortfolioSelectionStrategies forStockInvestment

In the stock market, it is one of the aims for investors to beat the market, i.e., outperform the bench-marks such as Nikkei Average. This aim, however, is not easy to achieve even for the professional fundmanagers. In this study, we propose an easy-practicing portfolio selection strategy, named D-10, to over-come the difficulty.

The D-10 strategy is an application of the Dow-10 strategy, which consists of buying the ten highestyielding Dow stocks and rebalancing annually, to Japanese stock market. Similar to Dow-10, we propose tobuy the ten highest yielding Nikkei 225 stocks or TOPIX Core 30 stocks and rebalancing annually.

And simulation results show the strategy is effective.Keywords: D-10 strategy, Dow 10 strategy, stock investment, portfolio selection

溝本 裕：マルコフ連鎖モンテカルロ法による経験強化型強化学習の方策改善YutakaMizomoto: APolicy Improvement ofExploitation-Oriented Reinforcement Learning by

UsingaMarkovChainMonteCarlo (MCMC).Reinforcement Learning (RL) is a type of machine learning algorithm and attempts to find a policy for

maximizing long-term rewards adapting to environment. The policy is expected to be effectively improvedby probabilistic knowledge. A probabilistic knowledge is estimated by the Markov Chain Monte CarloMethod (MCMC) using incomplete information in RL process. In this paper, a policy improvement methodusing the probabilistic knowledge is studied. Proposed method is applied to a pursuit game and comparedwith the ordinary method.Keywords: Reinforcement Learning, Probabilistic Knowledge, Exploitation-Oriented Reinforcement,

Learning, Policy Iteration

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