Application of First-Principles-Based Artificial Neural Network Potentials to Multiscale-Shock Dynamics Simulations on Solid Materials

The use of artificial neural network (ANN) potentials trained with first-principles calculations has emerged as a promising approach for molecular dynamics (MD) simulations encompassing large space and time scales while retaining first-principles accuracy. To date, however, the application of ANN-MD has been limited to near-equilibrium processes. Here we combine first-principles-trained ANN-MD with multiscale shock theory (MSST) to successfully describe far-from-equilibrium shock phenomena. Our ANN-MSST-MD approach describes shock-wave propagation in solids with first-principles accuracy but a 5000 times shorter computing time. Accordingly, ANN-MD-MSST was able to resolve fine, long-time elastic deformation at low shock speed, which was impossible with first-principles MD because of the high computational cost. This work thus lays a foundation of ANN-MD simulation to study a wide range of far-from-equilibrium processes

ソフトウェア ノ シンライセイ ニ カンスル イチコウサツ

The Department of Media and Information Systems of Teikyo University of Science & Technology regards software educations for undergraduate students as important. And so, the quality of teaching materials must be improved.This note describes two examples of systems which were used as teaching materials for software educations, one is with a very simple structure, and the other is with a complicated structure. The former is a Windows console application "Shogi Program", a kind of game program which the author developed as one of teaching materials for the freshmen course "Algorithms and Data Structures". And the structure of it is very simple, because it has no components to be connected with it and users of it always use it alone. This program looks like a program with high quality, because it has showed no defect since the first print on the text of the course and while the author developed its network versions (Web application and C/S (Client-Server) system application) for the 2004 university campus festival (2004 TUST campus festival). But , in order to improve its quality moreover, object oriented developing method is worth considering.The latter is a network application system with a reception program of a seminar and a registration program to its roll book. The author developed this system for the 2004 TUST campus festival and used it as one of teaching materials for the third-year students course "Database Application". This system has Web application version and C/S system version. And the structure of this one is complicated, because it had to be developed with managed development tool and uses DBMS (Microsoft Access), and more than one users use it simultaneously. This note describes the content and the cause of the defect of its Web application version which was caused by one 2-bytes space character specified instead of 1-byte space character by mistake. And this defect was found when the author made the third-year students to use it in the 2005 first term course "Database Application". This example of defect is educational and shows one of the most important things for developers to obey when developing managed mode applications

Statistics on Outpatients, Inpatients and Operations in the Department of Urology at the Sapporo Medical College in 1965.

Statistical observations were made on urological diseases of outpatients, inpatients and operative cases admitted at the Department of Urology, Sapporo Medical College during 1965. 1) The total number of outpatients was 2,143 with 1,129 males and 1,014 females. The ratio of male against female was 1.11 : 1. The breakdown of the main dseases were as follows : 166 urogenital tuberculosis, 454 nonspecific cystitis, 84 urolithiasis, 47 bladder tumor and 108 prostatic tumor cases. 2) The number of outpatients under 15 years of age was 248 with 20 cryptorchidism, 34 enuresis and 10 acute hemorrhagic cystitis cases. 3) The number of outpatients over 61 years was 251 with 80 prostatic tumor and 12 bladder tumor cases. 4) The total number of inpatients was 348 with 41 renal tuberculosis, 27 renal and ureteral stones, 10 renal tumor, 34 bladder tumor and 63 prostatic tumor cases. 5) The total number of operations was 338 and that of the transurethral manipulations was 222 with 34 nephrectomies, 18 prostatectomies, 4 total cystectomies, 12 urinary diversionsoperations, 20 TURP and 32 TUR-electrocoagulation of bladder tumors.departmental bulletin pape

Statistics on Outpatients, Inpatients and Operations in the Department of Urology at the Sapporo Medical College 1964.

Statistical observations were made on urological diseases of outpatients, inpatients and operations in the Department of Urology, Sasporo Medical College during 1964. 1) The total number of outpatients was 2,012. Among these 1,146 were male and 886 were female. The ratio of male against female was 1.32 : 1. The numbers of the main diseases were as follows : 183 urogenital tuberculosis, 462 nonspecific cystitis, 82 urolithiasis, 41 bladder tumor and 91 prostatic tumor cases. 2) The number of outpatients less than 15 years of age was 251 : 22 acute hemorrhagic cystities, 23 cryptorchidism and 30 enuresis cases. 3) Tne number of outpatients over 60 years of age was 216 : 15 bladder tumors, 74 prostatic tumor cases. 4) The total number of inpatients was 323 : 31 renal tuberculosis, 25 renal and ureteral stones, 25 bladder tumors and 38 prostatic tumor cases. 5) The total number of operations was 404 and that of the transurethral manipulations was 262 : 20 nephrectomies, 8 partial cystectomies, 8 prostatectomies and 13 TURP.departmental bulletin pape

Recycling of carbon fiber reinforced plastic containing amine-cured epoxy resin using supercritical and subcritical fluids

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