检索结果-南通市图书馆

Derivation of Modified Stress-Strain Tensor for Wrinkled Membrane by Using Projection Matrix

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Derivation of Modified Stress-Strain Tensor for Wrinkled Mem...

Roles of N-cadherin in cerebral cortical development:cooperation with membrane trafficking and actin cytoskeletal regulation

The Sixth World Congress on Computational Mechanics in Conjunction with the Second Asian-Pacific Congress on Computational Mechanics

作者： takeshi akita Kyoichi Nakashino M.C.Natori K.C.Park Japan Aerospace Exploration Agency (JAXA) The Institute of Space and Astronautical Science 3-1-1 Yoshinodai Sagamihara Kanagawa 229-8510 Japan Japan Aerospace Exploration Agency (JAXA) The Institute of Space and Astronautical Science 3-1-1 Yoshinodai Sagamihara Kanagawa 229-8510 Japan Japan Aerospace Exploration Agency (JAXA) The Institute of Space and Astronautical Science 3-1-1 Yoshinodai Sagamihara Kanagawa 229-8510 Japan Center for Aerospace Structures University of Colorado Boulder Colorado 80309-0429 USA

Recently, membranes attract great interest in the field of space structure s engineering due to such abilities as high packaging ratio and light weight proper ty. Since membranes have little resistance against compressive stresses, wrinkles may be formed over partial or entire regions of the membranes. The presence of such wrinkles could cause significant deterioration in the performance of membrane structures. Therefore, it is of great importance to develop efficient mathematical model accounting for wrinkling phenomenon.

关键词：

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

Neural Regeneration Research 2025年第1期20卷 188-190页

作者： Shiho Ito takeshi Kawauchi Department of Adaptive and Maladaptive Responses in Health and Disease Graduate School of MedicineKyoto UniversityKyotoJapan Department of Physiology Keio University School of MedicineTokyoJapan

Cell adhesion plays pivotal roles in the morphogenesis of multicellular *** cells form several types of cell-to-cell adhesion,including zonula occludens(tight junctions),zonula adhaerens(adherens junctions),and macula adhaerens(desmosomes).Although these adhesion complexes are basically observed only in epithelial cells,cadherins,which are the major cell adhesion molecules of adherens junctions,are expressed in both epithelial and non-epithelial tissues,including neural tissues(Kawauchi,2012).The cadherin superfamily consists of more than 100 members,but classic cadherins.

关键词： cerebral skeletal cooperation

No-touch isolation technique in emergency pancreaticoduodenectomy for neoplastic hemorrhage: Two case reports and review of literature

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第6期16卷 1910-1917页

作者： Akihiro Cho Satoshi Katagiri Masao Ota Shunsuke Onizawa Ryota Higuchi Toshiya Sugishita Yukiko Niwa takeshi Ishita Toshihiko Mouri akita Kato Moe Iwata Division of Gastroenterological Surgery Tokyo Women’s Medical UniversityYachiyo Medical CenterChiba 276-8524Japan

BACKGROUND Emergency pancreaticoduodenectomy(EPD)is a rare event for complex periam-pullary *** intraoperative blood loss is correlated with poor post-operative *** SUMMARY Two patients underwent EPD using a no-touch isolation technique,in which all arteries supplying the pancreatic head region were ligated and divided before manipulation of the pancreatic head and *** operative times were 220 and 239 min,and the blood loss was 70 and 270 g,*** patients were discharged on the 14^(th) and 10^(th) postoperative day,***-two patients underwent EPD for the treatment of neoplastic *** mean operative time was 361.6 min,and the mean blood loss was 747.3 *** comp-lication rate was 37.5%.The in-hospital mortality rate was 9.38%.CONCLUSION The no-touch isolation technique is feasible,safe,and effective for reducing intraoperative blood loss in EPD.

关键词： No-touch isolation technique Pancreaticoduodenectomy Emergency pancre-aticoduodenectomy Neoplastic bleeding Superior mesenteric artery first approach Case report

Impact of Socioeconomic Status and Demographic Composition on Disaster Mortality: Community‑Level Analysis for the 2011 Tohoku Tsunami

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 Disaster Risk Science 2022年第6期13卷 913-924页

作者： takeshi Miyazaki School of Economics Kyushu UniversityFukuoka 819-0395Japan

On 11 March 2011, the Tohoku tsunami hit the northeastern region of Japan, causing massive damage to people and property. The tsunami was bigger than any other in Japan’s recorded history, but the damage varied by community. This research addressed the effects of socioeconomic status and demographic composition on mortality in the 2011 Tohoku tsunami using community-level *** effects were estimated using regression analysis, taking into account a variety of potential contributing aspects at the community level, including strength of the tsunami,population characteristics, gender, age, education, household composition, evacuation methods, and occupation. It was found that the height of the tsunami and the shares of threegeneration households and employees in the manufacturing industry are all positively correlated with tsunami *** impacts of these factors on mortality are particularly large for the older adults.

关键词： 2011 Tohoku tsunami Community-level analysis Demographic composition Disaster risk reduction Mortality Socioeconomic status

Experiment on a Semi-Active In-Car Crib with Joint Application of Regular and Inverted Pendulum Mechanisms Using Scale Model

在线全文

学校读者我要写书评

暂无评论

Transactions of Nanjing University of Aeronautics and Astronautics 2018年第1期35卷 28-37页

作者： Kawashima takeshi Department of Mechanical Engineering Kanagawa Institute of Technology

To reduce the collision shock and risk of injury to an infant in an in-car crib(or in a child safety bed)during a car crash,it is necessary to limit the force acting on the crib below a certain allowable *** realize this objective,we propose a semi-active in-car crib system with the joint application of regular and inverted pendulum *** crib is supported by arms similar to a pendulum,and the pendulum system itself is supported by arms similar to an inverted *** addition,the arm acting as a regular pendulum is joined with the arm acting as an inverted pendulum through a linking mechanism for simplicity,and the friction torque of the joint connecting the base and the latter arm is controlled using a brake mechanism,which enables the proposed in-car crib to gradually increase the deceleration of the crib and maintain it at around the target *** system not only reduces the impulsive force but also transfers the force to the infant′s back using a spin control system,i.e.,the impulse force is made to act perpendicularly on the *** spin control system was developed in our previous *** present work focuses on the acceleration control system.A semi-active control law with acceleration feedback is introduced using the sliding mode control ***,a feedback system of the crib acceleration relative to the vehicle is proposed for the high-vibrational ***,a control experiment using scale model is conducted to confirm the effectiveness,and some results are reported.

关键词： shock control occupant crash protection passive safety device child restraint system impact relaxation

Computer-generated holograms for 3D display(Invited Paper)

在线全文

学校读者我要写书评

暂无评论

Chinese Optics Letters 2009年第12期7卷 1079-1082页

作者： Hiroshi Yoshikawa takeshi Yamaguchi Department of Electronics and Computer Science Nihon University

We have been studying various types of computer-generated holograms for three-dimensional （3D） displays both for a real-time holographic video display and a hard copy, or a printed hologram. For the hard copy output, we have developed a direct fringe printer, which is achieved to print over 100 gigapixels computer-generated hologram with 0.44μm pitch. In this paper, we introduce our recent progresses on the rainbow hologram, the cylindrical holograms, and the disk hologram for 3D display.

关键词： Computer-generated holograms for 3D display Figure

Malignant biliary obstruction due to metastatic non-hepatopancreato-biliary cancer

在线全文

学校读者我要写书评

暂无评论

World Journal of Gastroenterology 2022年第10期28卷 985-1008页

作者： takeshi Okamoto Department of Gastroenterology St.Luke’s International HospitalChuo-ku 104-8560TokyoJapan

Malignant biliary obstruction generally results from primary malignancies of the pancreatic head,bile duct,gallbladder,liver,and ampulla of *** lesions from other primaries to these organs or nearby lymph nodes are rarer causes of biliary *** most common primaries include renal cancer,lung cancer,gastric cancer,colorectal cancer,breast cancer,lymphoma,and *** may be difficult to differentiate from primary hepato-pancreatobiliary cancer based on imaging studies,or even on *** is also no consensus on the optimal method of treatment,including the feasibility and effectiveness of endoscopic intervention or surgery.A thorough review of the literature on pancreato-biliary metastases and malignant biliary obstruction due to metastatic non-hepato-pancreato-biliary cancer is *** diagnostic modality and clinical characteristics may differ significantly depending on the type of primary *** primaries also cause malignant biliary obstruction in different ways,including direct invasion,pancreatic or biliary metastasis,hilar lymph node metastasis,liver metastasis,and peritoneal *** may hold promise for some types of pancreato-biliary *** review aims to elucidate the current knowledge in this area,which has received sparse attention in the *** aging population,advances in diagnostic imaging,and improved treatment options may lead to an increase in these rare occurrences going forward.

关键词： Bile duct obstruction Obstructive jaundice Pancreas Metastasis Endoscopic retrograde cholangiopancreatography

Synthesis and catalytic properties of iron-cerium phosphate prepared in ethylene glycol using additives

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Advanced Ceramics 2013年第1期2卷 49-54页

作者： Hiroaki ONODA takeshi SAKUMURA Department of Informatics and Environmental Sciences Kyoto Prefectural University1-5Shimogamo Nakaragi-choSakyo-kuKyoto 606-8522Japan

The effects of cerium substitution,use of additives,and heating temperature on the chemical composition and catalytic activity of iron phosphate were ***-cerium phosphate was prepared from iron nitrate,ammonium cerium nitrate,and sodium phosphate in ethylene glycol using sodium dodecyl-sulfate or acetylacetone as *** chemical composition,particle shape and size distribution of the obtained samples were respectively evaluated based on ICP and XRD,SEM,and laser diffraction/scattering *** catalytic activity was evaluated based on the decomposition of the complex formed from formaldehyde,ammonium acetate,and *** peaks corresponding to FePO_(4) were observed for the samples heated at 600℃whereas samples treated at lower temperatures were ***-cerium phosphates heated at 200℃and 400℃exhibited high catalytic activity for the decomposition of the aforementioned complex.

关键词： iron phosphate cerium substitution ethylene glycol ICP analysis catalytic property

The Coincidence of Critical Day Length Recognition for Florigen Gene Expression and Floral Transition under Long-Day Conditions in Rice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Molecular Plant 2013年第3期6卷 635-649页

作者： Hironori Itoh takeshi Izawa National Institute of Agrobiological Sciences Functional Plant Research Unit 2-1-2 Kannondai Tsukuba 305-8602 Japan

The photoperiodic control of flowering time is essential for the adaptation of plants to variable environments and for successful reproduction. The identification of genes encoding florigens, which had been elusive but were supposedly synthesized in leaves and then transmitted to shoot apices to induce floral transitions, has greatly advanced our understanding of the photoperiodic regulation of flowering. Studies on the photoperiodism of Arabidopsis, a model long-day plant, revealed the molecular mechanisms regulating the expression of the Arabidopsis florigen gene FT, which is gradually induced in response to increase in day length. By contrast, in rice, a model short-day plant, the expression of the florigen gene Hd3a （an FTortholog in rice） is regulated in an on/off fashion, with strong induction under short-day conditions and repression under long-day conditions. This critical day length dependence of Hd3a expression enables rice to recognize a slight change in the photoperiod as a trigger to initiate floral induction. Rice possesses a second florigen gene, RFT1, which can be expressed to induce floral transition under non-inductive long-day conditions. The complex transcriptional regulation of florigen genes and the resulting precise control over flowering time provides rice with the adaptability required for a crop species of increasing global importance.

关键词： florigen photoperiodic flowering critical day length recognition gating mechanism rice breeding.