result 9314 件
| JaLCDOI | 10.18926/19674 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_71.pdf |
| Author | Tsuruta, Kenji| Totsuji, Hiroo| Totsuji, Chieko| |
| Abstract | A parallel tight-binding molecular dynamics with an order-N [O(N))] algorithm is implemented to perform large-scale simulation of nanostructured materials. The algorithm is based on the Fermi-operator expansion of an electronic energy and force, and we present its basic formalisms. Accuracy necessary for molecular-dynamics simulations can be obtained by a proper truncation in the expansion. Parallel efficiency on a parallel PC cluster shows nearly ideal scaling behavior with respect to the number of processors. Applicability of the method to a silicon-carbide system is examined. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 71 |
| End Page | 77 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309027 |
| JaLCDOI | 10.18926/19673 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_61.pdf |
| Author | Totsuji, Hiroo| Tsuruta, Kenji| Totsuji, Chieko| |
| Abstract | The behavior of multicomponent plasmas in the Penning-Malmberg traps is discussed with the parameters corresponding to experiments with antiprotons and cryogenic electrons. The relaxation times for the energy transfer antiprotons to electrons and between parallel and perpendicular components of electrons are estimated. It is shown that, depending on the values of parameters, both the former and the latter can be the bottleneck in the cooling process. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 61 |
| End Page | 69 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309106 |
| JaLCDOI | 10.18926/19671 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_51.pdf |
| Author | Totsuji, Hiroo| Tsuruta, Kenji| Totsuji, Chieko| |
| Abstract | Density functional molecular dynamics method is applied to hydrogen plasma in the domain of liquid metallic hydrogen. Tentative results for the proton-proton pair distribution function and the electron-proton pair distribution function are obtained. It is shown that with the increase of the parameter γ(s), we have increasingly strong screening of proton charge by electrons and the decrease of electron density in the domain between protons. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 51 |
| End Page | 59 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309192 |
| JaLCDOI | 10.18926/19669 |
|---|---|
| Title Alternative | Diagnosis of chronic pancreatitis |
| FullText URL | 057_029_036.pdf |
| Author | Takeda, Masahiko| Harada, Hideo| Matsumoto, Shuji| Ochi, Koji| Tanaka, Juntaro| Yoshida, Mitsuo| Oka, Hiroo| Miyake, Hirofumi| Kimura, Ikuro| |
| Abstract | 近年，各種膵疾患に対する検査法の発達には目を見張るものがあるが，実際の運用にあたっては各検査法の適応，限界，組合わせおよび実施する順序等に迷うことが少なくない。本研究では，最近我々が経験した慢性膵炎Ⅰ群116例の診断過程を振り返ることにより，慢性膵炎の診断における理想的な検査法の組合わせとそれぞれの役割を検討し，同時に診断名のみならず病態と病期が容易に理解できる表現方法を提案した。画像診断法，膵外分泌機能検査法（EX），膵内分泌機能検査法（EN）を比較検討し，以下の結果を得た。①画像診断法は必須である。②内視鏡的逆行性膵胆管造影（ERCP）を軸とした腹部超音波検査（US）あるいは腹部CTスキャン（CT）の組合わせは欠くことができない。③EXもまた必須の検査法である。④ENは慢性膵炎の診断に必要不可欠ではないが，治療方針を決めるうえで重要である。⑤純粋膵液（PPJ）の生化学的検査と組織化学的検査は膵炎の診断と病態生理の解明に重要である。⑥PPJ中の細胞診は慢性膵炎に合併した膵癌の検索に有用である。⑦以下に示すような診断の記載方法を提案した。"Calcified chronic pancreatitis, alcoholic, diffuse, ERCP-3, US-2, CT-3, EX-2, EN-1, Lf(＋)"。 |
| Keywords | 慢性膵炎 (chronic pancreatitis) 画像診断 (imaging diagnosis) PS試験 (pure pancreatic juice) 純粋膵液(PPJ) (Pancreozymin-Secretin test) 内視鏡的逆行性膵胆管造影(ERCP) (endoscopic retrograde cholangiopancreatography (ERCP)) |
| Publication Title | 環境病態研報告 |
| Published Date | 1986-07 |
| Volume | volume57 |
| Start Page | 29 |
| End Page | 36 |
| ISSN | 0913-3771 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002309023 |
| JaLCDOI | 10.18926/19666 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_45.pdf |
| Author | Yamada Nobuya| Oka, Hisao| |
| Abstract | It is difficult to evaluate a biomechanical properties quantitatively. The authors developed the measurement system of biomechanical properties formerly but it is on a large scale because of the use of personal computer. In this study, the portable measurement system of biomechanical impedance/mobility is developed. To establish a rapid measurement, a random vibration is adopted in input signal. The system consists of the measuring probe, amplifier, and a note-typed personal computer. The measurement probe is developed newly, and has an overall length of 9 ㎝ (without a handle) and a total weight of about 500 g. The measurement program is also developed and is available to any computer which is worked under MS DOS compatible in Windows 95/98 operating system. The biomechanical spectra of thigh, temple and forehead are obtained and they show three typical spectrum patterns. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 45 |
| End Page | 50 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309193 |
| JaLCDOI | 10.18926/19663 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_39.pdf |
| Author | Yanagi Makoto| Oka, Hisao| |
| Abstract | The acousicmyogram (AMG) is a mechanical phenomenon recorded at the surface of an active muscle. It is used to monitor force production, fatigue, and contractile properties of muscle. In this study, the new electrode with accelerometer for electrostimulation and acoustic detection. It consists of Ag-AgCl active electrode and solid-gel annular groud, and a very light piezoresistive accelerometer. The recorded AMG waveform depends on the pulse amplitude and duration of stimulation current and its lag from the electroatimulation is about 7 ms. The strengh-duration (S-D) curve (the threshold current for stimulation vs. pulse duration) describes the excitability of muscle. The left forearm is electrostimulated by using the same electrode and the muscle vibration (AMG) is recorded with accelerometer. During the muscle fatigue, the S-D curve changes and the current threshold increases under the same pulse duration. The rheobase of S-D curve increases gradually but the chronaxie hardly changes during muscle fatigue. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 39 |
| End Page | 44 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309185 |
| JaLCDOI | 10.18926/19662 |
|---|---|
| Title Alternative | Effect of aging on pancreatic exocrine function -Aging and fecal chymotrypsin activity- |
| FullText URL | 057_024_028.pdf |
| Author | Matsumoto, Shuji| Harada, Hideo| Ochi, Koji| Takeda, Masahiko| Tanaka, Juntaro| Morinaga, Hiroshi| Yoshida, Mitsuo| Kimura, Ikuro| |
| Abstract | 膵外分泌機能に及ぼす加齢の影響を検討する目的で，健常人43名，非膵疾患患者41名，老人ホーム入居者39名を対象として比色法により糞便中キモトリプシン活性（FCA）を測定し，以下の結論を得た。1）FCAは逐齢的に低下し，60歳以上は60歳未満より有意の低値を示した。しかし，分布図のretrospectiveな検討からは，膵外分泌機能の低下は，実際には65～70歳あたりから明らかになることが示唆された。2）FCAの正常下限値を14.5U/gに定めたが，高齢者の診療にあたってはこの正常値のみを根拠にして疾病の有無を判定すべきではない。3）老人ホーム入居者のFCAは特に低値を取ったがその主要因は高齢者が多いためと考えられた。 |
| Keywords | 糞便中キモトリプシン活性 (Fecal chymotrypsin activity) 加齢 (Aging) 膵外分泌機能 (Pancreatic exocrine function) 膵 (Pancreas) 酵素 (Enzyme) |
| Publication Title | 環境病態研報告 |
| Published Date | 1986-07 |
| Volume | volume57 |
| Start Page | 24 |
| End Page | 28 |
| ISSN | 0913-3771 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002309096 |
| JaLCDOI | 10.18926/19660 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_25.pdf |
| Author | Song Baoyin| Inaba, Hideo| Horibe, Akihiko| |
| Abstract | A set mathematical models was developed for predicting the performance of an open-type flat-plate solar collector, and solved numerically through an implicit difference method. The effects of various parameters on the absorption of solar energy for the collector were investigated. The results showed that the solar energy absorptance of the open-type flat-plate collector was relatively high especially for the region where the weather was humid and hot, and there were an optimum length and an optimum tilt angle for the absorbing plate on which the collector could obtain the highest solar energy absorptance. It was found that the latent heat flux of water evaporation could be 5 to 15 times larger than the sensible heat flux. The effects of the magnitude of the solar incident flux, the atmospheric humidity, the atmospheric temperature, the absorbing plate tilt angle, and water film thickness on the temperature rising of the water film were clarified in numerical quantities. The increase of the solar incident flux, the atmospheric humidity or the atmospheric temperature also resulted in a rise in the energy absorptance of the collector. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 25 |
| End Page | 37 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002308992 |
| JaLCDOI | 10.18926/19657 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_19.pdf |
| Author | Yamamoto, Kyoji| Jiao Xuecheng| Jiao Xuezhen| |
| Abstract | A new type of hydrocyclone with a perforated inner cylinder is tested experimentally to study its performance for liquid-solid separation. The size of the cyclone is small so that it may be effective for small particle separation. Two types of the inner cylinder were made : the one has 39.5% void fraction of the perforated surface and the other has 73.5% . The mean particle diameter is 4.5 μ m. It is found that the pressure loss of the cyclone with the inner cylinder is reduced by about 25% compared with that of the ordinary type. The new type cyclone has better separation efficiency. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 19 |
| End Page | 24 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309091 |
| JaLCDOI | 10.18926/19656 |
|---|---|
| Title Alternative | An application of artificial CO(2)-bathing for psychosomatic disorders in childhood |
| Author | Komoto, Junko| |
| Abstract | 人工炭酸浴剤浴（パブ浴）は，末梢循環改善作用を有して組織に賦活力を与え，皮膚創傷治癒を促進させる。全身に引き掻き傷を有する心身症の少女2症例に対して，母親とともにパブ浴を常用させた。何れの症例においても，皮膚創傷治癒をみて，患児，および母親に治療者を頼ってみようという，いわば治療への動機づけが促がされ，入浴という手段で児童の最大のストレスである母子関係の阻害に対し脱ストレス的に働き患児とのラポールがえられるようになった。パブ浴には副作用は全くなく，児童期の様々な心身症に応用されてよいであろう。 |
| Keywords | 人工炭酸浴 (Artitificial CO(2) bathing) 自傷 (seif-injured wounds) 創傷治癒効果 (healing effect for wounds) 母子関係改善 (relaxing effect for mother-child relationship) あそび的効果 (play-therapeutic effect) |
| Publication Title | 環境病態研報告 |
| Published Date | 1986-07 |
| Volume | volume57 |
| Start Page | 18 |
| End Page | 23 |
| ISSN | 09133771 |
| language | Japanese |
| File Version | publisher |
| JaLCDOI | 10.18926/19654 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_9.pdf |
| Author | Yamamoto, Kyoji| |
| Abstract | The molecular dynamics study is applied for interaction of the gas molecule with the solid wall to analyse the flow of a rarefied gas between two wall. The wall consisting of Pt molecules is considered to be in a state of physical adsorbates. Two problems are considered : one is the flow problem and the other is the temperature problem. It is found that the tangential momentum accommodation coefficient is about 0.8 when the relative speed ratio of the two walls is unity, while it decreases with increasing Knudsen number when the relative wall speed ratio is 5.0. It shown that the temperature accommodation coefficient is about 0.85 at 300K wall, 0.75 at 450K wall, and 0.69 at 600K wall. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 9 |
| End Page | 17 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309121 |
| JaLCDOI | 10.18926/19651 |
|---|---|
| Title Alternative | Clinical trials with artificial CO(2) bathings |
| FullText URL | 057_012_017.pdf |
| Author | Usui, Yasuko| Komoto, Junko| Sunakawa, Mitsuru| Kohmoto, Tomoji| Komoto, Yoshiaki| |
| Abstract | パブ浴（人工炭酸浴剤浴）は，組織に酸素を供給し，また組織循環の改善により組織に賦活力を与え，さらに末梢毛細血管の拡張作用を有する。外来患者を対象に，末梢循環障害5例，高血圧症2例，不定愁訴症例2例を選び，半年より1年にわたって家庭でパブ浴を連浴させた。全例に，併用薬の減量，あるいは中止をみた。とくに蛋白尿を伴った高血圧症例では，血圧の正常化に伴って蛋白尿の減少をみた。炭酸泉の効果は連浴によっても変化を認めず，人工炭酸泉浴は家庭においても療養泉としての効果がえられ，疾病の自然予後に有為に作用する。 |
| Keywords | 人工炭酸泉浴 (Artificial CO(2) bath) 連浴 (serial bathing) 末梢循環障害 (peripheral circulation insufficiency) 高血圧症 (hypertension) 不定愁訴 (general malaise) |
| Publication Title | 環境病態研報告 |
| Published Date | 1986-07 |
| Volume | volume57 |
| Start Page | 12 |
| End Page | 17 |
| ISSN | 09133771 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002309069 |
| JaLCDOI | 10.18926/19648 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_33_2_1.pdf |
| Author | Omura, Yasuhiro| Hida, Moritaka| Sakakibara, Akira| Takemoto, Yoshito| |
| Abstract | Molecular dynamics simulation of nickel crystal under uniaxial tensile and compressive deformation was performed for single nenocrystal model and twinned nanocrystal model composed of 1550 atoms using EAM (embedded atom method) potential with the object of investigating deformation induced phase tranformation (especially twin deformation). In the case of single nanocrystal model, the evolution and development of twin deformation, (111)[11(2)], is observed under compressive loading in [001] direction, whereas either slip or twin deformation is not recognized under tensile loading. In the case of twinned nanocrystal model, twin, (111)[11(2)], decreases and disappears under tensile loading, and develops under compressive loading, It is suggested from the difference of results between single nanocrystal model and twinned nanocrystal model that it is easy for twin to induce local deformation. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1999-04-27 |
| Volume | volume33 |
| Issue | issue2 |
| Start Page | 1 |
| End Page | 8 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309020 |
| JaLCDOI | 10.18926/19647 |
|---|---|
| Title Alternative | Screening test for chromosome aberrations of long-time residents in misasa spa. |
| FullText URL | 057_009_011.pdf |
| Author | Komoto, Yoshiaki| Kohmoto, Tomoji| Sunakawa, Mitsuru| Yagi, Nobuko| Mifune, Masaaki| |
| Abstract | 三朝温泉のラドン含有は，源泉で約1347～2694Bq／l，常用温泉水で137～224Bq／l，また，屋内では7.3～73.7Bq／lである。三朝温泉地に出生して，28～75年にわたる入浴者9名，および三朝温泉地外に出生して16～78 年にわたる入浴者4名について末梢静脈血の染色体検査を，ギムザ染色，および特に長年入浴している3名についてはG一分染法による分析を行なった。浴水，および生活環境のラドン濃度の多寡によらず，長年の入浴によっても染色体の構造変化は正常範囲内であった。 |
| Keywords | 三朝温泉地 (Misasa spa) ラドン泉 (Radon bath) 染色体異常 (Chromosome aberration) |
| Publication Title | 環境病態研報告 |
| Published Date | 1986-07 |
| Volume | volume57 |
| Start Page | 9 |
| End Page | 11 |
| ISSN | 09133771 |
| language | Japanese |
| File Version | publisher |
| NAID | 120002309001 |
| JaLCDOI | 10.18926/19637 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_32_43.pdf |
| Author | Totsuji, Chieko| Matsubara Takeo| |
| Abstract | Large isotope effects have been observed in various kinds of hydrogen bonded ferro / antiferroelectrics. In clariflying their origin, themodynamic properties of the hydrogen bond are of essential importance. Two numerical methods are applied to analyze the model for isolated hydrogen bond at finite temperatures and the results of excited energy levels of proton or deuteron are examined. It is found that the second excited state is not far enough from the first excited state to be neglected discussing themodynamic properties of hydrogen especially in their ordered states. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1998-04-20 |
| Volume | volume32 |
| Issue | issue1-2 |
| Start Page | 43 |
| End Page | 54 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309098 |
| JaLCDOI | 10.18926/19636 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_32_23.pdf |
| Author | Totsuji, Hiroo| Kishimoto, Tokunari| Totsuji, Chieko| |
| Abstract | Parameters characterizing the structure ot confined Yukawa system are estimated for 'dusty plasmas', clouds of charged macroscopic particles formed near the boundary between plasma and the sheath and leviated by negatively biased electrode. When we have dust particles with different ratios of charge to mass, they form a two-dimensional Yukawa mixture or separate two-dimensional one-companent Yukawa systems, depending on the charge density in the sheath and number density of dust particles. In order to provide a basis for numerical simulations on Yukawa mixtures including Coulombic case, we summarize mathematical expressions necessary for molecular dynamics. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1998-04-20 |
| Volume | volume32 |
| Issue | issue1-2 |
| Start Page | 23 |
| End Page | 41 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309150 |
| JaLCDOI | 10.18926/19634 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_32_15.pdf |
| Author | Mori, Masahiro| Oka, Hisao| |
| Abstract | In a stiffness estimation of living body, an internal structure under the skin influences the measured results. Because a different stiffness of body caused by bones and muscles is obtained. In this paper, by using a measurement system of mechanical impedance, the relations between a viscoelasticity and a distance from the surface of silicone-gel model is calculated. This relation is applied to silicone-gel tumor model and a shape and a viscoelasticity of semi-sphere silicone-gel tumous are estimated. The obtained results are expressed as a reconstructed 3-D image of shape / viscoelasticity. The revised curve-fitting of mechanical impedance and the cancellation of peripheral vibration influence are proposed in order to increase an estimation acccuracy. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1998-04-20 |
| Volume | volume32 |
| Issue | issue1-2 |
| Start Page | 15 |
| End Page | 22 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309047 |
| JaLCDOI | 10.18926/19632 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_32_7.pdf |
| Author | Adli| Yamamoto, Yoshitake| |
| Abstract | This paper describes a new measurment method and principle of power line interference elimination in ECG signal using inverse loop and AC power line configuration (APC). First, we considered that magnetic induction effect not only depend on a conductive loop area that formed by shielded wires that connect the object and amplifier but also effect of body area effective must be considered. It is simple and useful because interference can be eliminated to very small value show that the condition and it can be applied in a real ECG signal recording. Second, results show that the contribution of displacement currents into the object especially APC in vertical configuration is smaller than it in other one. Because this method is so easy that it is convenient to be used to understand some aspects of power line interference elimination phenomenon. Hence we expect that this method can be used as one of improvement method in measurement system of ECG signal recording. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1998-04-20 |
| Volume | volume32 |
| Issue | issue1-2 |
| Start Page | 7 |
| End Page | 14 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309065 |
| JaLCDOI | 10.18926/19630 |
|---|---|
| Title Alternative | The effect of artificial CO(2) bathing on peripheral circulation insufficiency. |
| FullText URL | 057_003_008.pdf |
| Author | Komoto, Yoshiaki| Kohmoto, Tomoji| Sunakawa, Mitsuru| Yorozu, Hidenori| Eguchi, Yasuteru| |
| Abstract | 末梢動脈の慢性閉塞性疾患に対する血行再建術の予後は不良で，虚血肢の治療には一定の見解が乏しく非常に難澁するものである。組織循環の概念にもとづいた評価法によると，医用質量分析装置を用いた虚血肢運動負荷後のPtCO(2)の脱飽和曲線の型により組織循環の良否が定まる。組織循環の良好な型では，自然予後は良好で，いかなる保存的治療にもよく反応する。一方，組織循環の不良な型の自然予後は不良であるので，人工炭酸泉浴によるPtO(2)の増加，および組織循環量の改善により予後は良好となる。人工炭酸泉浴は，組織循環の良好な症例には治癒促進的に作用し，組織循環の不良な症例にも有効に作用する。 |
| Keywords | 人工炭酸浴 (Artificial CO(2) bath) 連浴 (serial bathing) 末梢循環障害 (peripheral circuiation insufficiency) 医用質量分析装置 (medical mass spectrometer) 組織循環 (tissue perfusion) |
| Publication Title | 環境病態研報告 |
| Published Date | 1986-07 |
| Volume | volume57 |
| Start Page | 3 |
| End Page | 8 |
| ISSN | 09133771 |
| language | Japanese |
| File Version | publisher |
| JaLCDOI | 10.18926/19628 |
|---|---|
| FullText URL | Mem_Fac_Eng_OU_32_1.pdf |
| Author | Guo, Changning| Uno, Yoshiyuki| Okada, Akira| Takagi, Takashi| |
| Abstract | Low electrode wear EDM is attained by the adhesion of heat resolved carbon made from kerosine type machining fluid to the electrode end surface. This phenomenon, however, occurs only under long pulse duration. Therefore, the low electrode wear EDM under finishing condition is impossible so far. In the previous paper, the authors developed a turbostratic carbon electrode whose structure is very similar to the heat resolved carbon generated in EDM process and made it clear that the low electrode wear EDM was possible by using the electrode even under finishing condition. In this study, a carbon coated electrode and a SiC coated one which can be made rapidly at low cost were developed and their EDM characteristics were investigated. Experimental analysis pointed it out that both electrodes were effective in reducing electrode wear under finishing condition. |
| Publication Title | Memoirs of the Faculty of Engineering, Okayama University |
| Published Date | 1998-04-20 |
| Volume | volume32 |
| Issue | issue1-2 |
| Start Page | 1 |
| End Page | 6 |
| ISSN | 0475-0071 |
| language | English |
| File Version | publisher |
| NAID | 120002309140 |
