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Shedding new light on the dislocation-mediated plasticity in wurtzite ZnO single crystals by photoindentation

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Journal of Materials Science & Technology 2023年第25期156卷 206-216页

作者： Yan Li Xufei Fang eita Tochigi Yu Oshima Sena Hoshino Takazumi Tanaka Hiroto Oguri Shigenobu Ogata Yuichi Ikuhara Katsuyuki Matsunaga Atsutomo Nakamura Department of Mechanical Science and Bioengineering Osaka University1-3 Machikaneyama-choToyonaka 560-8531Japan Department of Materials and Earth Sciences Technical University of Darmstadt64287 DarmstadtGermany Institute of Industrial Science The University of Tokyo4-6-1 KomabaMeguro-kuTokyo 153-8505Japan PRESTO Japan Science and Technology Agency (JST)4-1-8HonchoKawaguchi-shiSaitama 332-0012Japan Department of Materials Physics Nagoya UniversityFuro-choChikusa-kuNagoya 464-8603Japan Institute of Engineering Innovation The University of Tokyo2-11-16 YayoiBunkyo-kuTokyo 113-8656Japan

Dislocation-mediated plasticity in inorganic semiconductors and oxides has attracted increasing research interest because of the promising mechanical and functional properties tuned by *** this study,we investigated the effects of light illumination on the dislocation-mediated plasticity in hexagonal wurtzite ZnO,a representative third-generation semiconductor material.A(0001)45o off sample was specially designed to preferentially activate the basal slip on(0001)*** types of nanoindentation tests were performed under four different light conditions(550 nm,334 nm,405 nm,and darkness),including low-load(60μN)pop-in tests,high-load(500μN)nanoindentation tests,and nanoindentation creep *** maximum shear stresses at pop-in were found to approximate the theoretical shear strength regardless of the light *** activation volume at pop-ins was calculated to be larger in light than in ***-sectional transmission electron microscope images taken from beneath the indentation imprints showed that all indentation-induced dislocations were located beneath the indentation imprint in a thin-plate shape along one basal slip *** indentation-induced dislocations could spread much deeper in darkness than in light,revealing the suppressive effect of light on dislocation *** analytical model was adopted to estimate the elastoplastic stress field beneath the *** was found that dislocation glide ceased at a higher stress level in light,indicating the increase in the Peierls barrier under light ***,nanoindentation creep tests showed the suppression of both indentation depth and creep rate by *** creep also yielded a larger activation volume in light than in darkness.

关键词： Photoindentation Compound semiconductors Oxides Crystal plasticity Dislocations

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《西游记之大圣归来》陷落五百年的深深深海

课堂内外（高中版）（A版） 2015年第9期 48-49页

作者：路人eita

冰蓝深海,猴子沉入水底,无能为力,大圣落魄,剥除齐天之名,只是区区一介石猴罢了。而眼前浮现起的那颗毛茸茸的圆光头,乌溜溜的黑瞳仁,清脆地喊他一声,＂大圣＂。他伸出手,穿过冰冷的水,握住了那只残破的布偶。即使他的力量他的威风他的... 详细信息

冰蓝深海,猴子沉入水底,无能为力,大圣落魄,剥除齐天之名,只是区区一介石猴罢了。而眼前浮现起的那颗毛茸茸的圆光头,乌溜溜的黑瞳仁,清脆地喊他一声,＂大圣＂。他伸出手,穿过冰冷的水,握住了那只残破的布偶。即使他的力量他的威风他的神通还被压在那逃不出的五指山下,可他只要能做那长安城里小和尚的齐天大圣,便足矣。这个瞬间,在我看来,才是孙猴子真正挣破封印的一刻。孙悟空之所以一直充满魅力,正在于他的复合型＂人格＂。正如电影海报里的＂一念成魔,一念成佛＂,在这不可控的身躯里,存在着魔的杀性,佛的智怂,也有人的温情。但在大闹天宫以前,桀骜不驯的猴子是顽石里日月山川孕育的一缕精魂。

关键词：电影海报大闹天宫成佛六小龄童程小东悟空

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看看真实的动物们,好吗?

方圆 2016年第17期 64-65页

作者：路人eita

有幸在8月7日参加陆川的电影《我们诞生在中国》点映,当下感动不已,回来做了一番搜索,去了解背后的故事.观影后心头汩汩热血,在搜索之后冷却下来,突然陷入两难里：动物们本身足够可爱,但电影工业拼接式的说故事方式,能不能被认可,令人... 详细信息

有幸在8月7日参加陆川的电影《我们诞生在中国》点映,当下感动不已,回来做了一番搜索,去了解背后的故事.观影后心头汩汩热血,在搜索之后冷却下来,突然陷入两难里：动物们本身足够可爱,但电影工业拼接式的说故事方式,能不能被认可,令人感到很为难.雪豹妈妈的故事其实是素材的拼接在《我们诞生在中国》里,看恢宏画卷徐徐铺展开来,壮阔斑斓的自然,雾岚天光,山脊河川,大美不言.雪豹、川金丝猴、熊猫的三个故事,在春夏秋冬四季轮转的时间里,徐徐道来.

关键词：动物电影工业故事金丝猴中国搜索拼接熊猫

Trends in Dietary Intakes and Serum Cholesterol Levels over 50 Years in Tanushimaru in Japanese Men

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Food and Nutrition Sciences 2011年第5期2卷 476-481页

作者： Hisashi Adachi Yuji Hirai Satoshi Sasaki Mika Enomoto Ako Fukami eita Kumagai Eishi Esaki Tsutomu Imaizumi 不详

We investigated the relationship between time trends in dietary intakes and serum cholesterol levels in a Japanese cohort of the Seven Countries Study, in Tanushimaru, a typical farming town on Kyushu Island. Total subjects were 628 in 1958, 539 in 1977, 602 in 1982, 752 in 1989, 402 in 1999, and 329 in 2009, and all of the subjects were men aged 40 - 64 years. Eating patterns were evaluated by 24-hour dietary recall from 1958 through 1989, and by a food frequency questionnaire in 1999 and 2009. We also measured serum cholesterol levels in each health examination. The total energy intake decreased from 2,837 kcal in 1958 to 2,289 kcal in 2009. The carbohydrate intake in percentage of total energy intake decreased markedly, from 84% in 1958 to 58% in 2009, in contrast to large increases during this period in protein intake (from 11% to 16%) and fat intake (from 5% to 22%). In proportion to the dramatic change in protein and fat intake, serum cholesterol levels showed large increases (from 152.5 mg/dl to 207.7 mg/dl). Despite of such big dietary changes toward a westernized diet, incidence of coronary heart disease has not increased in our cohort for a couple of decades. However, careful surveillance is needed in the future because of the remarkably increasing intake of fats.

关键词： Epidemiology Diet Risk Factor Cardiovascular Disease

Multi-Node Fault-Tolerant Two-Cell Real-Time S2A Network

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Intelligent Control and Automation 2016年第2期7卷 25-38页

作者： Merna N. Abou eita Mostafa W. Hussein Ahmed A. Ibrahim Shereen S. Abouelazayem Mennatallah A. Morsi Eslam A. Moustafa Hassan H. Halawa Ramez M. Daoud Hassanein H. Amer Hany M. ElSayed Electronics and Communications Engineering Department The American University in Cairo New Cairo Egypt Electronics and Communications Engineering Department Cairo University Giza Egypt

This paper presents a novel fault-tolerant networked control system architecture consisting of two cells working in-line. This architecture is fault-tolerant at the level of the controllers as well as the sensors. Each cell is based on the sensor-to-actuator approach and has an additional supervisor node. It is proven, via analysis as well as OMNeT++ simulations that the production line succeeds in meeting all control system requirements with no dropped or over-delayed packets. A reliability analysis is then undertaken to quantitatively estimate the increase in reliability due to the introduction of fault-tolerance.

关键词： Fault-Tolerance NCS S2A In-Line TMR Ethernet OMNeT++ Reliability