检索结果-南通市图书馆

Investigation of the Characteristics of the 2008 Wenchuan and 2013 Lushan Earthquakes and Their Relationship

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

地质学报 2013年第S1期 6-7页

作者： LIN Jian shinji TODA Ross S.STEIN Mustapha MEGHRAOUI Woods Hole Oceanographic Institution Tohoku University U.S.Geological Survey EOST-Institut de Physique du Globe de Strasbourg

This presentation illustrates the characteristics of the 2008 Wenchuan and 2013 Lushan earthquakes, investigates their stress interaction, and discusses the implications on regional seismicity rate changes. In 2008, we calculated that the 12 May 2008 Mw=7.9 Wenchuan earthquake has increased Coulomb failure stress on adjacent major fault systems, including the ends of the 2008 Longmen Shan rupture,

关键词：

Current Situation of Drug Abuse and Countermeasures in Japan

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Sociology Study 2016年第8期6卷 539-551页

作者： shinji Nakamura National Police Academy Tokyo Japan

Drug abuse is a common problem that all countries in the world face. The most distinguishing characteristic of drug abuse in ｜apart is that use of stimulants, mostly methamphetamine, accounts for over 80% of the arrests. Abuse of a stimulant called Philopon was widespread after the Second World War in ]apan, but the situation was dramatically improved after 1954 because the Japanese government enacted the Stimulant Control Act and restructured the police system and Japanese society recovered from post-war unrest. The situation of drug abuse in Japan has become less serious compared to the past and to the situation in many other countries, because we are taking comprehensive and nationwide measures, including proactive disclosure of the situation, control, drug abuse prevention class, and introduction of partial suspension of sentence. On the other hand, as in many countries, the rapid spread of new psychoactive substances （NPS） in recent years became a serious social issue. The situation of NPS has been rapidly improving due to comprehensive and government-wide measures, but the means of acquisition is quickly shifting to the Internet. It is necessary to strengthen cyber patrol.

关键词： Comprehensive and nationwide measures new psychoactive substances cyber patrol

Flexural Properties of Long Bamboo Fiber/ PLA Composites

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Composite Materials 2015年第3期5卷 70-78页

作者： shinji Ochi Department of Mechanical Engineering National Institute of Technology Niihama College Ehime Japan

This paper describes the flexural properties of biodegradable composites made using natural fiber and biodegradable plastics. Biodegradable composites were fabricated from bamboo fiber bundles and PLA (polylactic acid) resin. In this research, effect of molding temperature and fiber content on flexural properties of bamboo fiber reinforced composites was investigated. The flexural strength of this composite increased with increasing fiber content up to 70%. The flexural strength of composites decreased at molding temperature of 180°C. Biodegradable composites possessed extremely high flexural strength of 273 MPa, in the case of molding temperature of 160°C and fiber content of 70%.

关键词： Bamboo Fiber PLA Biodegradable Composites Natural Fiber Flexural Strength

Non-Singularity Conditions for Two Z-Matrix Types

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Linear Algebra & Matrix Theory 2014年第2期4卷 109-119页

作者： shinji Miura Independent Gifu Japan

A real square matrix whose non-diagonal elements are non-positive is called a Z-matrix. This paper shows a necessary and sufficient condition for non-singularity of two types of Z-matrices. The first is for the Z-matrix whose row sums are all non-negative. The non-singularity condition for this matrix is that at least one positive row sum exists in any principal submatrix of the matrix. The second is for the Z-matrix which satisfies where . Let be the ith row and the jth column element of , and be the jth element of . Let be a subset of which is not empty, and be the complement of if is a proper subset. The non-singularity condition for this matrix is such that or such that for? . Robert Beauwens and Michael Neumann previously presented conditions similar to these conditions. In this paper, we present a different proof and show that these conditions can be also derived from theirs.

关键词： Z-Matrix M-Matrix Non-Negative Matrix Diagonal Dominance

Quantification of Revenue Induction and Expenditure Reflux in a Monetary Economy

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Linear Algebra & Matrix Theory 2015年第1期5卷 25-35页

作者： shinji Miura Independent Gifu Japan

In a monetary economy, expenditure induces revenue for each agent. We call this the revenue induction phenomenon. Moreover, in a special case, part of the expenditure by an agent returns as their own revenue. We call this the expenditure reflux phenomenon. Although the existence of these phenomena is known from the olden days, this paper aims to achieve a more precise quantification of them. We first derive the revenue induction formula through solving the partial money circulation equation. Then, for a special case, we derive the expenditure reflux formula. Furthermore, this paper defines the revenue induction coefficient and the expenditure reflux coefficient, which are the key concepts for understanding the two formulas, and examines their range.

关键词： Monetary Economy Money Circulation Revenue Induction Expenditure Reflux

Three-dimensional imaging identified the accessory bile duct in a patient with cholangiocarcinoma

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2014年第32期20卷 11451-11455页

作者： Ryoichi Miyamoto Yukio Oshiro shinji Hashimoto Keisuke Kohno Kiyoshi Fukunaga Tatsuya Oda Nobuhiro Ohkohchi Division of Gastroenterological and Hepatobiliary Surgery and Organ Transplantation Department of Surgery University of Tsukuba Ibaraki 305-8575 Japan

The development of diagnostic imaging technology, such as multidetector computed tomography(MDCT) and magnetic resonance cholangiopancreatography(MRCP), has made it possible to obtain detailed images of the bile duct. Recent reports have indicated that a 3-dimensional(3D) reconstructed imaging system would be useful for understanding the liver anatomy before surgery. We have investigated a novel method that fuses MDCT and MRCP images. This novel system easily made it possible to detect the anatomical relationship between the vessels and bile duct in the portal hepatis. In this report, we describe a very rare case of extrahepatic cholangiocarcinoma associated with an accessory bile duct from the caudate lobe connecting with the intrapancreatic bile duct. We were unable to preoperatively detect this accessory bile duct using MDCT and MRCP. However, prior to the second operation, we were able to clearly visualise the injured accessory bile duct using our novel 3D imaging modality. In thisreport, we suggest that this imaging technique can be considered a novel and useful modality for understanding the anatomy of the portal hepatis, including the hilar bile duct.

关键词： 3-dimensional imaging Hepatobiliary and pancreatic surgery Accessory bile duct Caudate lobe bile duct Cholangiocarcinoma

Benefits of international trauma rotation in South Africa:comparison with a trauma center in Tokyo

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Emergency and Critical Care Medicine 2022年第4期2卷 179-180页

作者： Tsuyoshi Nagao shinji Nakahara Takashi Fujita Tetsuya Sakamoto Elmin Steyn Department of Emergency Medicine Teikyo University School of MedicineTokyoJapan Graduate School of Health Innovation Kanagawa University of Human ServicesKawasakiJapan Department of surgery Stellenbosch University and Tygerberg HospitalCape TownSouth Africa.

International rotations have been an option for young surgeons who face difficulties in obtaining sufficient trauma training in their own coun*** of the authors attended training in trauma surgery in South Africa for 6 months,where there are many trauma caseloads,and could experience the number of emergency operations equivalent to approximately 5 years in *** rotation allows trainees to expose clinical practices intensively and to learn principles and theories of care under experienced academic *** the other hand,they could contribute to the host hospital as part of the workforce and by assisting young surgical *** development of a more systematic and formalized framework for staff exchange between developed and developing countries will provide mutual benefits to both sides.

关键词： Low-and middle-income countries On-the-job training Trauma surgery

Micropulse laser trabeculoplasty under maximal tolerable glaucoma eyedrops:treatment effectiveness and impact of surgical expertise

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2021年第3期14卷 388-392页

作者： shinji Kakihara Takao Hirano Akira Imai Taihei Kurenuma Yoshiaki Chiku Toshinori Murata Department of Ophthalmology Shinshu University School of MedicineMatsumotoNagano 390-8621Japan

AIM:To evaluate the effectiveness of micropulse laser trabeculoplasty(MLT)for eyes with open angle glaucoma(OAG)under maximal tolerable glaucoma eyedrops and to assess the effect of expertise performing MLT on its clinical ***:Medical records of 42 consecutive eyes of 34 patients diagnosed with OAG who underwent MLT were retrospectively *** effectiveness was determined using the Kaplan-Meier survival *** was defined as an intraocular pressure(IOP)reduction of21 mm Hg during two consecutive follow-up visits,or surgical intervention for *** determine the impact of MLT surgical expertise on clinical effectiveness,the eyes were divided into two groups according to whether the procedure was conducted by an experienced specialist(defined as a glaucoma specialist who had conducted at least ten MLT procedures)or a less experienced glaucoma *** difference in expertise was determined using a log-rank ***:MLT was conducted by three glaucoma *** overall survival rates were 0.76,0.48,and 0.44 at 1,3,and 6 mo,*** survival rates for MLT performed by a less experienced glaucoma specialist were 0.62,0.31,and 0.25(n=21 eyes)at 1,3,and 6 mo,respectively,whereas the survival rates for MLT performed by an experienced glaucoma specialist were 0.90,0.64,and 0.64(n=21 eyes)at 1,3,and 6 mo,*** log-rank test showed a significant difference in the survival curves of the two groups(P=0.0061).CONCLUSION:The 6-month effectiveness of MLT for controlling IOP is relatively limited in eyes with OAG using maximal tolerable glaucoma ***,its effectiveness may be improved if performed by a glaucoma specialist with sufficient MLT experience.

关键词： micropulse laser trabeculoplasty open angle glaucoma inter-operator variability

Symptomatic COVID-19 in University Students: A School-Wide Web-Based Questionnaire Survey during the Omicron Variant Outbreak

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论