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4. Effects of Administering Intravenous Azithromycin Within 7 Days of Hospitalization on Influenza Virus Pneumonia Complicated With Acute Respiratory Distress Syndrome: A Propensity Score Analysis Using a Nationwide Administrative Database

Author

Tokito, T., primary, Kido, T., additional, Muramatsu, K., additional, Tokutsu, K., additional, Okuno, D., additional, Yura, H., additional, Ishimoto, H., additional, Takazono, T., additional, Sakamoto, N., additional, Obase, Y., additional, Ishimatsu, Y., additional, Fujino, Y., additional, Yatera, K., additional, Fushimi, K., additional, Matsuda, S., additional, and Mukae, H., additional

Published
2023
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21. Oceanic squid do fly

Author

Muramatsu, K., Yamamoto, J., Abe, T., Sekiguchi, K., Hoshi, N., and Sakurai, Y.

Subjects
Animal flight -- Methods, Biological sciences
Abstract

Using powerful jet propulsion, some squid species are able to exit the water and become airborne; this is a common behavior seen throughout the world's oceans. However, direct scientific observation is rare, with most studies relying on anecdotal evidence and limited photographic documentation. Here, we examine the flying behavior of young oceanic squid (Ommastrephidae) observed in sequential photographs taken in the Northwest Pacific (35°34.0'N, 146°19.3'E) on July 25, 2011. We define four phases in the flight process: launching, jetting, gliding and diving. During flight, squid actively change their aerial posture and attitude depending on the flight phase and their distance from the water. The present study demonstrated that flight of squid is not simple gliding after incidental exit from the water, but involves jet propulsion, generation of lift force and control of different body poshires in different flight phases, which have evolved to enhance escape from predators., Introduction The evolution of a buoyancy mechanism released shelled mollusks from the benthos, thereby allowing the descendant cephalopods to adopt a pelagic existence (Boyle and Rodhouse 2005). Modern squids have [...]

Published
2013
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26. Impedance measurement using a resonance circuit for detecting steel bars and cables inside pliable plastic conduit tubes buried in concrete walls and slabs

Author

Yamazaki, K., Ishikawa, K., Haga, A., Muramatsu, K., Kobayashi, K., and Sasaki, H.

Subjects
Impedance (Electricity) -- Measurement, Resonance -- Usage, Buildings -- Remodeling, restoration, etc., Buildings -- Technology application, Technology application, Business, Electronics, Electronics and electrical industries
Published
2010

27. Method for evaluating shielding factor of double layered magnetically-shielded rooms for uniform magnetic field using exciting coils placed on one side

Author

Odawara, S., Muramatsu, K., Komori, S., Kamata, K., Yamazaki, K., Yamaguchi, T., Sakakibara, M., Shinnoh, T., Simokawa, M., Ishikawa, N., and Meguro, T.

Subjects
Electromagnetic noise -- Measurement, Magnetic fields -- Analysis, Magnetic flux -- Measurement, Magnetic shielding -- Measurement, Business, Electronics, Electronics and electrical industries
Published
2010

33. Accuracy of the PHQ-2 Alone and in Combination With the PHQ-9 for Screening to Detect Major Depression: Systematic Review and Meta-analysis

Author

Levis B, Sun Y, He C, Wu Y, Krishnan A, Bhandari PM, Neupane D, Imran M, Brehaut E, Negeri Z, Fischer FH, Benedetti A, Thombs BD, Depression Screening Data (DEPRESSD) PHQ Collaboration, Che L, Levis A, Riehm K, Saadat N, Azar M, Rice D, Boruff J, Kloda L, Cuijpers P, Gilbody S, Ioannidis J, McMillan D, Patten S, Shrier I, Ziegelstein R, Moore A, Akena D, Amtmann D, Arroll B, Ayalon L, Baradaran H, Beraldi A, Bernstein C, Bhana A, Bombardier C, Buji RI, Butterworth P, Carter G, Chagas M, Chan J, Chan LF, Chibanda D, Cholera R, Clover K, Conway A, Conwell Y, Daray F, de Man-van Ginkel J, Delgadillo J, Diez-Quevedo C, Fann J, Field S, Fisher J, Fung D, Garman E, Gelaye B, Gholizadeh L, Gibson L, Goodyear-Smith F, Green E, Greeno C, Hall B, Hampel P, Hantsoo L, Haroz E, Harter M, Hegerl U, Hides L, Hobfoll S, Honikman S, Hudson M, Hyphantis T, Inagaki M, Ismail K, Jeon HJ, Jetté N, Khamseh M, Kiely K, Kohler S, Kohrt B, Kwan Y, Lamers F, Asunción Lara M, Levin-Aspenson H, Lino V, Liu S-I, Lotrakul M, Loureiro S, Löwe B, Luitel N, Lund C, Marrie RA, Marsh L, Marx B, McGuire A, Mohd Sidik S, Munhoz T, Muramatsu K, Nakku J, Navarrete L, Osório F, Patel V, Pence B, Persoons P, Petersen I, Picardi A, Pugh S, Quinn T, Rancans E, Rathod S, Reuter K, Roch S, Rooney A, Rowe H, Santos I, Schram M, Shaaban J, Shinn E, Sidebottom A, Simning A, Spangenberg L, Stafford L, Sung S, Suzuki K, Swartz R, Tan PLL, Taylor-Rowan M, Tran T, Turner A, van der Feltz-Cornelis C, van Heyningen T, van Weert H, Wagner L, Li Wang J, White J, Winkley K, Wynter K, Yamada M, Zhi Zeng Q, and Zhang Y

Subjects
Adult, Male, Depressive Disorder, Major, Patient Health Questionnaire, behavioral disciplines and activities, Sensitivity and Specificity, humanities, Interviews as Topic, ROC Curve, General & Internal Medicine, mental disorders, Humans, Mass Screening, Female, 11 Medical and Health Sciences
Abstract

Importance:The Patient Health Questionnaire depression module (PHQ-9) is a 9-item self-administered instrument used for detecting depression and assessing severity of depression. The Patient Health Questionnaire-2 (PHQ-2) consists of the first 2 items of the PHQ-9 (which assess the frequency of depressed mood and anhedonia) and can be used as a first step to identify patients for evaluation with the full PHQ-9. Objective:To estimate PHQ-2 accuracy alone and combined with the PHQ-9 for detecting major depression. Data Sources:MEDLINE, MEDLINE In-Process & Other Non-Indexed Citations, PsycINFO, and Web of Science (January 2000-May 2018). Study Selection:Eligible data sets compared PHQ-2 scores with major depression diagnoses from a validated diagnostic interview. Data Extraction and Synthesis:Individual participant data were synthesized with bivariate random-effects meta-analysis to estimate pooled sensitivity and specificity of the PHQ-2 alone among studies using semistructured, fully structured, or Mini International Neuropsychiatric Interview (MINI) diagnostic interviews separately and in combination with the PHQ-9 vs the PHQ-9 alone for studies that used semistructured interviews. The PHQ-2 score ranges from 0 to 6, and the PHQ-9 score ranges from 0 to 27. Results:Individual participant data were obtained from 100 of 136 eligible studies (44 318 participants; 4572 with major depression [10%]; mean [SD] age, 49 [17] years; 59% female). Among studies that used semistructured interviews, PHQ-2 sensitivity and specificity (95% CI) were 0.91 (0.88-0.94) and 0.67 (0.64-0.71) for cutoff scores of 2 or greater and 0.72 (0.67-0.77) and 0.85 (0.83-0.87) for cutoff scores of 3 or greater. Sensitivity was significantly greater for semistructured vs fully structured interviews. Specificity was not significantly different across the types of interviews. The area under the receiver operating characteristic curve was 0.88 (0.86-0.89) for semistructured interviews, 0.82 (0.81-0.84) for fully structured interviews, and 0.87 (0.85-0.88) for the MINI. There were no significant subgroup differences. For semistructured interviews, sensitivity for PHQ-2 scores of 2 or greater followed by PHQ-9 scores of 10 or greater (0.82 [0.76-0.86]) was not significantly different than PHQ-9 scores of 10 or greater alone (0.86 [0.80-0.90]); specificity for the combination was significantly but minimally higher (0.87 [0.84-0.89] vs 0.85 [0.82-0.87]). The area under the curve was 0.90 (0.89-0.91). The combination was estimated to reduce the number of participants needing to complete the full PHQ-9 by 57% (56%-58%). Conclusions and Relevance:In an individual participant data meta-analysis of studies that compared PHQ scores with major depression diagnoses, the combination of PHQ-2 (with cutoff ≥2) followed by PHQ-9 (with cutoff ≥10) had similar sensitivity but higher specificity compared with PHQ-9 cutoff scores of 10 or greater alone. Further research is needed to understand the clinical and research value of this combined approach to screening.

Published
2020

34. Unidirectional porous beta-tricalcium phosphate: a new bone filling substitute for treatment of distal radius fracture in the elderly population

Author

Muramatsu, K and Iwanaga, R

Subjects
ddc: 610, distal radius fracture, unidirectional pore structure, 610 Medical sciences, Medicine, beta-tricalcium phosphate, locking plate
Abstract

Objectives/Interrogation: The distal radius is the most common fracture site in the upper extremity, especially in elderly patients. Dorsally displaced fractures are often treated by open reduction and internal fixation using the volar approach. The bony defect can be filled with bone graft substitute[for full text, please go to the a.m. URL], 14th Triennial Congress of the International Federation of Societies for Surgery of the Hand (IFSSH), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT), 11th Triennial Congress of the International Federation of Societies for Hand Therapy (IFSHT)

Published
2020
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35. Probability of major depression classification based on the SCID, CIDI, and MINI diagnostic interviews: A synthesis of three individual participant data meta-analyses

Author

Wu, Y. Levis, B. Ioannidis, J.P.A. Benedetti, A. Thombs, B.D. Sun, Y. He, C. Krishnan, A. Bhandari, P.M. Neupane, D. Negeri, Z. Imran, M. Rice, D.B. Riehm, K.E. Saadat, N. Azar, M. Levis, A.W. Sanchez, T.A. Chiovitti, M.J. Yan, X.W. Boruff, J. Kloda, L.A. Cuijpers, P. Gilbody, S. McMillan, D. Patten, S.B. Shrier, I. Ziegelstein, R.C. Comeau, L. Mitchell, N.D. Tonelli, M. Vigod, S.N. Henry, M. Ismail, Z. Loiselle, C.G. Akena, D.H. Al-Adawi, S. Alamri, S.H. Alvarado, R. Alvarado-Esquivel, C. Amtmann, D. Arroll, B. Ayalon, L. Bakare, M.O. Baradaran, H.R. Barnes, J. Bavle, A.D. Beck, C.T. Beraldi, A. Bernstein, C.N. Bhana, A. Bindt, C. Bombardier, C.H. Boyce, P.M. Büel-Drabe, N. Buji, R.I. Bunevicius, A. Butnoriene, J. Bunevicius, R. Butterworth, P. Carter, G. Chagas, M.H. Chan, J.C.N. Chan, L.F. Chaudron, L.H. Chen, C.-K. Cholera, R. Clover, K. Conroy, R.M. Conway, A. Conwell, Y. Correa, H. Castro E Couto, T. Cukor, D. Dabscheck, E. Daray, F.M. De Figueiredo, F.P. De Man-Van Ginkel, J.M. Diez-Quevedo, C. Douven, E. Downing, M.G. Eapen, V. Fann, J.R. Feinstein, A. Ferentinos, P.P. Fernandes, M. Field, S. Figueiredo, B. Fischer, F.H. Fisher, J.R.W. Flint, A.J. Fujimori, M. Fung, D.S.S. Gallagher, P. Gandy, M. Garcia-Esteve, L. Garman, E.C. Gelaye, B. Gholizadeh, L. Giardinelli, L. Gibson, L.J. Goodyear-Smith, F. Grassi, L. Green, E.P. Greeno, C.G. Hall, B.J. Hantsoo, L. Haroz, E.E. Harter, M. Hegerl, U. Helle, N. Hides, L. Hobfoll, S.E. Honikman, S. Howard, L.M. Hudson, M. Hyphantis, T. Inagaki, M. Jenewein, J. Jeon, H.J. Jette, N. Keller, M. Khalifa, D.S. Khamseh, M.E. Kiely, K.M. Kim, S.-W. Kjargaard, M. Kohler, S. Kohlhoff, J. Kohrt, B.A. Kozinszky, Z. Kusminskas, L. Kwan, Y. Lamers, F. Lara, M.A. Lelli, L. Leonardou, A.A. Levin-Aspenson, H.F. Lotrakul, M. Loureiro, S.R. Lowe, B. Luitel, N.P. Lund, C. Maes, M. Marrie, R.A. Marsh, L. Martin-Santos, R. Marx, B.P. Massardo, L. Matsuoka, Y. Mehner, A. Meuti, V. Michopoulos, I. Misery, L. Sidik, S.M. Munhoz, T.N. Muramatsu, K. Radoš, S.N. Nakku, J.E.M. Navarrete, L. Garcia, P.N. Navines, R. Nishi, D. O'Donnell, M.L. Luwa E-Andjafono, D.O. Osório, F.L. Öztürk, A. Peceliuniene, J. Pence, B.W. Persoons, P. Picardi, A. Pintor, L. Ponsford, J.L. Pugh, S.L. Quinn, T.J. Rancans, E. Rathod, S.D. Reme, S.E. Reuter, K. Robertson-Blackmore, E. Rochat, T.J. Rooney, A.G. Rowe, H.J. Sánchez-González, R. Santos, I.S. Schram, M.T. Schwarzbold, M.L. Cankorur, V.S. Shaaban, J. Sharpe, L. Shinn, E.H. Sidebottom, A. Simard, S. Simning, A. Singer, S. Siu, B.W.M. Skalkidou, A. Spangenberg, L. Stafford, L. Stein, A. Stewart, R.C. Stone, J. Su, K.-P. Sultan, S. Sundström-Poromaa, I. Sung, S.C. Suzuki, K. Tadinac, M. Tan, P.L.L. Tandon, S.D. Taylor-Rowan, M. Teixeira, A.L. Tendais, I. Thiagayson, P. Tiringer, I. Töreki, A. Torres-Giménez, A. Tran, T.D. Trevillion, K. Tung, K.-Y. Turner, A. Turner, K. Van Der Feltz-Cornelis, C.M. Van Heyningen, T. Van Weert, H.C. Vega-Dienstmaier, J.M. Vöhringer, P.A. Wagner, L.I. Walterfang, M. Wang, J.L. Wang, W. Wang, L.-J. White, J. Wong, D.K. Wynter, K. Yamada, M. Yonkers, K.A. Zeng, Q.Z. Zhang, Y. DEPRESsion Screening Data (DEPRESSD) Collaboration

Abstract

Introduction: Three previous individual participant data meta-analyses (IPDMAs) reported that, compared to the Structured Clinical Interview for the DSM (SCID), alternative reference standards, primarily the Composite International Diagnostic Interview (CIDI) and the Mini International Neuropsychiatric Interview (MINI), tended to misclassify major depression status, when controlling for depression symptom severity. However, there was an important lack of precision in the results. Objective: To compare the odds of the major depression classification based on the SCID, CIDI, and MINI. Methods: We included and standardized data from 3 IPDMA databases. For each IPDMA, separately, we fitted binomial generalized linear mixed models to compare the adjusted odds ratios (aORs) of major depression classification, controlling for symptom severity and characteristics of participants, and the interaction between interview and symptom severity. Next, we synthesized results using a DerSimonian-Laird random-effects meta-analysis. Results: In total, 69,405 participants (7,574 [11%] with major depression) from 212 studies were included. Controlling for symptom severity and participant characteristics, the MINI (74 studies; 25,749 participants) classified major depression more often than the SCID (108 studies; 21,953 participants; aOR 1.46; 95% confidence interval [CI] 1.11-1.92]). Classification odds for the CIDI (30 studies; 21,703 participants) and the SCID did not differ overall (aOR 1.19; 95% CI 0.79-1.75); however, as screening scores increased, the aOR increased less for the CIDI than the SCID (interaction aOR 0.64; 95% CI 0.52-0.80). Conclusions: Compared to the SCID, the MINI classified major depression more often. The odds of the depression classification with the CIDI increased less as symptom levels increased. Interpretation of research that uses diagnostic interviews to classify depression should consider the interview characteristics. © 2020

Published
2020

36. Correlação da digestibilidade em pepsina com a energia metabolizável e os coeficientes de digestibilidade de aminoácidos de farinha de origem animal

Author

TEIXEIRA, C. J. de, TAVERNARI, F. de C., LOPES, L. dos S., NEIS, F. T., MURAMATSU, K., LUSPA, M. A. M., PETROLLI, T. G., PAIANO, D., BOIAGO, M. M., SORDI, C., VALENTINI, J., CARLOS JONATAN DE SOUSA TEIXEIRA, UDESC/Chapecó, FERNANDO DE CASTRO TAVERNARI, CNPSA, LETICIA DOS SANTOS LOPES, CNPSA, FERNANDA TONELLO NEIS, IFC/Concórdia, KEYSUKE MURAMATSU, Seara Alimentos, MARIA APARECIDA MELO LUSPA, Evonik, TIAGO GOULART PETROLLI, UNOESC, DIOVANI PAIANO, UDESC/Chapecó, MARCEL MANENTE BOIAGO, UDESC/Chapecó, CARINA SORDI, UDESC/Chapecó, and JULIANI VALENTINI, UDESC/Chapecó.

Subjects
Nutrição Animal, Digestibilidade, Farinha de origem animal, Ração, Frango de Corte
Abstract

Made available in DSpace on 2020-10-22T09:16:44Z (GMT). No. of bitstreams: 1 final9499.pdf: 1373325 bytes, checksum: aa606267cf8639a1baad9e79a9841641 (MD5) Previous issue date: 2020

Published
2020

37. Nonlinear optical properties and XAFS investigation of Ag2O-TeO2 glasses

Author

Hayakawa, T., Muramatsu, K., Kato, K., Hayashi, K., Yamamoto, K., Duclere, Jean-René, Thomas, Philippe, IRCER - Axe 3 : organisation structurale multiéchelle des matériaux (IRCER-AXE3), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and DERORY, BEATRICE

Subjects
[CHIM.MATE] Chemical Sciences/Material chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, [SPI.MAT] Engineering Sciences [physics]/Materials, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience

Published
2019

39. Measurement of the cross-section and forward-backward charge asymmetry for the b and c-quark in $e^+e^-$ $\sqrt{s} = 58$ annihilation with inclusive muons at $e^+e^-$ $\sqrt{s} = 58$ GeV

Author

Inoue, Y., Miyamoto, A., Nakano, E., Takahashi, T., Tauchi, T., Teramoto, Y., Abe, K., Abe, T., Adachi, I., Adachi, K., Aoki, M., Aoki, M., Enomoto, R., Emi, K., Fujii, H., Fujii, K., Fujii, T., Fujimoto, J., Fujiwara, N., Hirano, H., Howell, B., Hayashii, H., Iida, N., Ikeda, H., Itami, S., Itoh, R., Iwasaki, H., Iwasaki, M., Kajikawa, R., Kaneyuki, K., Kato, S., Kawabata, S., Kichimi, H., Kobayashi, M., Koltick, D., Levine, I., Mamada, H., Miyabayashi, K., Muramatsu, K., Nagai, K., Nakabayashi, K., Nakamura, M., Noguchi, S., Nitoh, O., Ochi, A., Ochiai, F., Ohishi, N., Ohnishi, Y., Ohshima, Y., Okuno, H., Okusawa, T., Shibata, E., Sugiyama, A., Sugiyama, H., Suzuki, S., Takahashi, K., Tanimori, T., Tomoto, M., Tsukamoto, T., Tsumura, T., Uno, S., Watanabe, Y., Yamamoto, A., and Yamauchi, M.

Published
2000
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44. P2.04-41 Clinical and Immunological Factors Associated with Mutation Burden in Non-Small Cell Lung Cancer

Author

Terada, Y., primary, Ono, A., additional, Isaka, M., additional, Kawata, T., additional, Serizawa, M., additional, Kawabata, T., additional, Imai, T., additional, Muramatsu, K., additional, Hayashi, I., additional, Kenmotsu, H., additional, Kusuhara, M., additional, Akiyama, Y., additional, Yamaguchi, K., additional, Sugino, T., additional, Ohde, Y., additional, and Takahashi, T., additional

Published
2019
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45. Structure and third-order nonlinear properties of TeO2-Ag2O glasses

Author

Hayakawa, T., Kato, K., Muramatsu, K., Yamamoto, K., Hayashi, K., Duclere, Jean-René, Thomas, Philippe, IRCER - Axe 3 : organisation structurale multiéchelle des matériaux (IRCER-AXE3), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), and DERORY, BEATRICE

Subjects
[CHIM.MATE] Chemical Sciences/Material chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, [SPI.MAT] Engineering Sciences [physics]/Materials, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience

Published
2019

46. Development of Transparent Conductive Oxide for Silicon Heterojunction Solar Cell

Author

Nakamura, K., Muramatsu, K., Nishihara, T., Ogura, A., and Ohshita, Y.

Subjects
Heterojunction Solar Cells, Silicon Materials and Cells
Abstract

36th European Photovoltaic Solar Energy Conference and Exhibition; 527-529, In this work, we investigated high quality low-cost TCO (Transparent Conductive Oxide) suitable for SHJ (Silicon Heterojunction) solar cell. Lightly doped IWO (W-doped In2O3) is better than heavily doped one. 10% doped IWO has low transparency and high resistivity. In contrast with that, the Jsc of the SHJ cell using 1% doped IWO is extremely improved than ITO reference, and the cell efficiency was also improved 1%abs higher than ITO one on average. Sputtered SCOT also revealed its high potential to improve Jsc, significantly. In the both case of lightly doped IWO and SCOT, Jsc is increased by the improvement of infrared response. This is thought to be due to the suppression of free carrier absorption.

Published
2019
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47. Structures and linear/nonlinear optical properties of silver tellurite glasses

Author

Hayakawa, T., Kato, K., Muramatsu, K., Yamamoto, K., Hayashi, K., Duclere, Jean-René, Thomas, Philippe, DERORY, BEATRICE, IRCER - Axe 3 : organisation structurale multiéchelle des matériaux (IRCER-AXE3), Institut de Recherche sur les CERamiques (IRCER), Institut des Procédés Appliqués aux Matériaux (IPAM), Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut des Procédés Appliqués aux Matériaux (IPAM), and Université de Limoges (UNILIM)-Université de Limoges (UNILIM)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[CHIM.MATE] Chemical Sciences/Material chemistry, [CHIM.MATE]Chemical Sciences/Material chemistry, [SPI.MAT] Engineering Sciences [physics]/Materials, ComputingMilieux_MISCELLANEOUS, [SPI.MAT]Engineering Sciences [physics]/Materials
Abstract

International audience

Published
2019

49. Numerical and experimental investigations of current distribution at the joint between AC superconducting cable and normal conducting plate

Author

Takahashi, N., Muramatsu, K., Nakano, M., Sato, Y., Kondo, T., Kitagawa, M., and Takehara, J.

Subjects
Electrical cables -- Joints, Superconducting generators -- Evaluation, Finite element method -- Usage, Business, Electronics, Electronics and electrical industries
Abstract

The effect of the configuration of the joint between an ac superconducting cable and a normal conducting plate on the current distribution and the joule loss is investigated by using the 3-D finite element method. It is shown that the concentration of current can be reduced by changing the configuration of joint The effectiveness of the analysis is verified by measuring the current distribution on the surface of a copper plate and the quenching current.

Published
1996

50. Method for determining relaxation factor for modified Newton-Raphson method

Author

Fujiwara, K., Nakata, T., Okamoto, N., and Muramatsu, K.

Subjects
Relaxation methods (Mathematics) -- Analysis, Business, Electronics, Electronics and electrical industries
Abstract

In order to reduce the CPU time for the modified Newton-Raphson method which introduces a relaxation factor, the effect of the relaxation factor on the residual of the Galerkin method is examined in detail. It is shown that a relaxation factor, which always provides convergent solutions, can be easily searched for. Various methods for searching for the relaxation factor to be used are compared with each other.

Published
1993

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