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Optimization of Pulse.l.ser Anne.l.ng to Increase Sharpness of Implanted-junction Rectifier in Semiconductor Heterostructure

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作者： (美)e.l.鲍尔

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Nano-Micro letters 2010年第4期2卷 256-267页

作者： e.l.Pankratov Nizhny Novgorod State University of Architecture and Civil engineering

It has been recently shown that inhomogeneity of a semiconductor heterostructure.l.ads to increasing of sharpness of diffusion-junction and implanted-junction rectifiers,which are formed in the semiconductor *** has been also shown that together with increasing of the sharpness,homogeneity of impurity distribution in doped area *** both effect could be increased by formation of an inhomogeneous distribution of temperature(for example,by laser anne.l.ng).Some conditions on correlation between inhomogeneities of the semiconductor heterostructure and temperature distribution have been *** time has been optimized for pulse.l.ser anne.l.ng.

关键词： Pulse.l.ser Implanted-juction rectifier Heterostructure

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平原上的一所房子

译林 2007年第2期 119-131页

作者： e.l.多克特罗杜洪晴南京师范大学外国语学院 210097

妈妈说,我得当她的侄子,叫她多拉阿姨.她说, 我们将来想要过好日子,她现在就不可以有一个十八岁的--看上去像二十多岁的儿子.'叫我多拉阿姨.'她说.我就叫道:'多拉阿姨.'她听了却很不满意,让我连叫了好几遍.她说,要让人们听起来都相信,... 详细信息

妈妈说,我得当她的侄子,叫她多拉阿姨.她说, 我们将来想要过好日子,她现在就不可以有一个十八岁的--看上去像二十多岁的儿子.'叫我多拉阿姨.'她说.我就叫道:'多拉阿姨.'她听了却很不满意,让我连叫了好几遍.她说,要让人们听起来都相信,她是在她的鳏夫哥哥哈罗斯去世后,开始抚养我的.我纳闷了,问道:'我怎么不知道你有个叫哈罗斯的哥哥?''当然没有了,'她饶有兴味地看了我一眼,'但要是我能用它唬住'他儿子', 这肯定是个绝妙的故事.'

关键词：弗雷德芝加哥

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大进军

作者： (美)e.l. 多克托罗

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安德鲁的大脑

作者： (美)e.l. 多克托罗(e.l.Doctorow)

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诗人的生活

Fish embryo and juvenile size under hypoxia in the mouth- brooding African cichlid Pseudocrenilabrus multicolor

作者： (美)e.l.多克托罗(e.l.Doctorow)

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Current Zoology 2012年第3期58卷 401-412页

作者： e.e. ReARDON l.J. CHAPMAN Department of Biology McGill University 1205 Dr. Penfield Ave Montreal Quebec H3A 1B 1 Canada Wildlife Conservation Society 2300 Southern Boulevard Bronx NY 10460 USA

We used a field survey and a laboratory rearing experiment to （a） examine response （size and survival） to life.l.ng hypoxia in offspring of the African maternal mouth-brooding cichlid Pseudocrenilabrus multicolor victoriae （Seegers） and （b） explore the degree to which developmental response can be environmentaUy-induced. embryo size metrics were quantified in 9 field populations across a range of dissolved oxygen （DO） concentrations. In the.l.boratory, first generation （F1） broods of low-DO origin were reared under high or low DO. Brooding period was quantified for the mothers; and egg size, egg metabolic rate and juvenile size-at-release were quantified in their （F2） offspring. The F2 offspring were split and grown for 3 months post-release under high or low DO, and juvenile size and survival were quantified. In the field survey, across stages, embryos from low-DO field populations were shorter and weighed less than embryos from high-DO populations. In the.l.boratory experi- ment, F2 eggs and juveniles-at-release from mother＇s mouth did not differ in mass, length, survival regardless of development DO environment. However, juveniles diverged in size after leaving mother＇s mouth, exhibiting smaller size when grown under low DO. Size differences in embryo size across field populations and divergence in embryo size after release from the mother＇s mouth support predictions for smaller body size under hypoxia. There was no evidence for negative effects on survival of juveniles after 3 months. Brooding period was 16% shorter in females reared under low DO suggesting that hypoxia may accelerate embryo de- velopment. This work provides insights into how bearer fishes respond to hypoxic stress relative to fishes with no post-spawning parental care; a shorter brooding interval and smaller body size may provide an optimal solution to parent and embryo survival under hypoxia in brooding fishes [Current Zoology 58 （3）： 401-412, 2012].

关键词： African cichlid lake Victoria life-history Parental care Dissolved oxygen

Faddeev calculations on lambda hypertriton with potentials from Gel'fand–levitan–Marchenko theory

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Communications in Theoretical Physics 2020年第10期72卷 119-124页

作者： e F Meoto M l lekala Department of Physics University of South AfricaPrivate Bag X61710 JohannesburgSouth Africa

effective.l.mbda-proton and lambda-neutron potentials,restored from theoretical scattering phases through Gel'fand–levitan–Marchenko theory,are tested on a lambda hypertriton through three-body *** lambda hypertriton is treated as a three-body system consisting of lambda-proton,lambda-neutron and proton–neutron *** energy and root mean square radius are computed for the ground state of lambda hypertriton(Jp=12+).In coordinate space,the dynamics of the system is described using a set of coupled hyperradial equations obtained from the differential Faddeev *** solving the eigenvalue problem derived from this set of coupled hyperradial equations,the binding energy and root mean square matter radius computed are found to be-2.462 MeV and 7.00 fm,*** potentials are also shown to display a satisfactory convergence behaviour.

关键词： lambda-nucleon potential lambda-proton potential lambda-neutron potential lambda hypertriton Faddeev equations hyperspherical method

eXPeRIMeNTAl STUDY ON ReACTION SYNTHeSIS OF TiC IN Al-Ti-C SYSTeM

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Acta Metallurgica Sinica(english letters) 1998年第4期11卷 255-260页

作者： e.l. Zhang B.Yang S.Y. Zeng and Q.C. li(School of Materials Science and engineering, Harbin Institute of Technology, BOX 428, Harbin 150001.)China)M.Z.Ma (Jiamusi University Jiamusi 154002, China) Harbin Inst of Technology Harbin China

The reaction process and mechanistn of reaction synthesis of TiC in Al-Ti-C system have been investigated in detail by observing the microstructure of the water quenched preform with SeM and eDX. The results showed that the reaction processing can be divided into three stages: aluminium powder is melted firstly, then titanium dissolves in the melted aluminium and Al3Ti is formed around titanium powder, titanium concentrates around carbon powder and a Ti-rich layer is observed around carbon pariicles,in which titanium atom reacts with carbon atom to synthesize TiC;TiC precipitates out of the melt, and diffuses out of the.l.yer. A solution-precipitation mechanism and a reaction model were set up based on the experimental results.

关键词： kinetic process Al/TiC microstructure composite mechanism