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Current Zoology 2015年第5期61卷 910-921页

作者： sushma REDDY Arpad s. NYARI Biology Department Loyola University Chicago 1032 W Sheridan Road Chicago IL 60660 USA Department of Zoology Oklahoma State University 501 Life Sciences West Stillwater OK 74078 USA

The streak-breasted scimitar Babblers of the Pomatorhinus ruficollis species complex are found in most of the forested habitats across southern and eastern Asia. The diversification history of this group is obscured by high plumage variation across populations and conflicting genetic signal across loci. We combined genetic and geographic data from several recent studies to investigate how these species diversified across China using both phylogenetic and ecological niche modeling analyses. These two lines of evidence are consistent in showing that two well-sampled species, P. reconditus and P. nigrostellatus, in central and southern China respectively, likely experienced a history of isolation and expansion as suitable habitat contracted during the last interglacial and expanded in patchy extent during the glacial maximum. The genetic analysis showed that populations of P. nigrostellatus on Hainan Island are very similar to the ones in nearby mainland southern China. We recovered two well-supported clades within P. reconditus that were not geographically structured with both containing individuals from the same localities across central China. This phylogenetic result corresponded to the ecological niche models that showed expansion from refugia since the last interglacial. This study illustrates the value of using an integrative approach and detailed geographic sampling to help understand the recent diversification of birds in China [Current Zoology 61 （5）： 910-921, 2015].

关键词： songbirds Asia Ecological niche modeling Phylogenetics Babblers

Passivation kinetics of Mg-Nd-Gd-Zn-Zr(EV31A)and Mg-Y-Nd-Gd-Zr(WE43C)in NaOH solutions

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Journal of Magnesium and Alloys 2017年第3期5卷 254-270页

作者： Jakraphan Ninlachart Krishnan s.Raja Chemical and Materials Engineering University of IdahoMoscowID 83844-1021USA

Passivation kinetics of two Mg-RE alloys,such as Mg-Nd-Gd-Zn-Zr(EV31A),and Mg-Y-Nd-Gd-Zr(WE43C)were investigated in two different heat treated conditions(solution treated and overaged)in 0.01-1.0 M NaOH solutions under potentiostatic *** reaction order was observed in dilute NaOH which transitioned to positive values as the passivation time increased and in the 1 M NaOH as *** passive layers showed platelet morphology and the size of the platelets decreased with increase in the NaOH *** hydrogen evolution reaction(HER)kinetics was not improved on the passive layer covered surface of the Mg-RE alloys in contrast to the improvements reported on the hydroxide covered pure *** electrochemical impedance increased with increase in the NaOH concentration in the solution treated condition of both Mg-RE alloys,whereas the overaged EV31A alloy showed a reverse *** passive layer of EV31A showed almost 100%higher charge carrier density than the film formed on the WE43C in the overaged condition.A better passivation behavior was observed in the solution treated condition than that in the overaged condition which could be attributed to the uniform distribution of the RE elements in the solution treated *** WE43C alloy revealed better corrosion resistance in the alkaline solution than the EV31A alloy.

关键词： Magnesium rare earth alloy Passivation Alkaline solution Hydrogen evolution

Experimental investigation of anodized/spray pyrolysed nanoporous structure on heat transfer augmentation

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Journal of Thermal science 2009年第4期18卷 358-363页

作者： Kalaiselvam s. Gugan M.s. Kuraloviyan E. Meganathan R. NiruthiyaPriyan A. swaminathan M.R. Department of Mechanical Engineering Anna University Chennai

This paper analyzes the effects of nanoporous surface on heat transfer temperaments of assorted thermal conductingmaterials. A phenomenal proposal of wielding the surface roughness to ameliorate the heat transfer ratehas been discovered. The maximum increase of heat transfer rate procured by nanoporous layers is 133.3% higherthan the polished bare metals of surface roughness 0.2μm. This plays an imperative role in designing compact refrigerationsystems, chemical and thermal power plants. Experimental results picture a formidable upswing of58.3% heat transfer in chemically etched metals of surface roughness 3 μm, 133.3% in nanoporous surface of porosity75-95 nm formed by electrochemical anodization, and porosity of 40-50 nm formed by spray pyrolysis increasesthe heat transfer by 130%. Effects of porosity, flow velocity and scaling on the energy transfer are alsoscrutinized. This paper also analyzes the multifarious modes of nanoporous fabrication, to contrive both prodigiousand provident system.

关键词： Nanoporous surface Heat transfer augmentation Electrochemical anodization spray pyrolysis.

Colloidal synthesis and characterization of Cu_2Znsns_4 nanoplates

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Journal of semiconductors 2017年第3期38卷 110-115页

作者： s.Ananthakumar J.Ram Kumar s.Moorthy Babu Crystal Growth Centre Anna University Department of Physics Faculty of Physical and Mathematical SciencesUniversity of Concepcion

synthesis of copper zinc tin sulphide（Cu_2Znsns_4/ with nanoplate morphology was achieved through colloidal method using oleic acid as capping agent and solvent with 1-octadecene（1-ODE） at 240°C.X-ray diffraction（XRD） analysis shows that the synthesized nanoplates possessed pure kesterite *** analysis clearly shows the formation of nanoplates having the size of about 50–100 *** spin resonance（EsR） spectrum analysis of the prepared nanoplates shows that the valence state of copper（II） which indicates the strong coupling with other metal *** gravimetric/differential thermal analysis（TG/DTA） analysis shows the weight loss of sample at 450°C predicting the loss of capping ligands on the surface of the *** possible mechanism for the conversion of nanoplate-like structures during synthesis was *** results are discussed in detail.

关键词： colloidal method solar cells kesterites nanoplates oleic acid

Prediction of the seismic behavior of an underground railway station and a tunnel in Napoli(Italy)

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Underground space 2017年第2期2卷 88-105页

作者： s.Fabozzi V.Licata s.Autuori E.Bilotta G.Russo F.silvestri University of Napoli Federico II NapoliItaly

The assessment of the seismic safety of underground structures,either tunnels or large station boxes,should not be overlooked especially in densely populated areas,even with low to moderate *** underground structures,an important issue is the estimation of the seismic actions acting on the structure;only few experimental evidences are available for multi-level propped *** tunnels,it is generally assumed that their seismic behavior in soft ground is governed by the surrounding soil,while the inertial load contribution of the underground structure itself is *** both cases,recent numerical studies proved that advanced dynamic analyses can provide satisfactory interpretation of non-linear soil-structure interaction during *** this paper,a real case study,represented by a large open multi-propped excavation and a circular segmented tunnel in a densely urbanized area of the city center in Napoli,has been used to investigate some of the mentioned *** geotechnical characterization and choice of the reference input motions lead to a first estimate of the free-field ground motion,which was subsequently used for pseudo-static decoupled *** the complexity of both excavation geometry and staged construction,a full dynamic analysis was considered neither affordable nor reliable for the multi-propped station box;thus two conventional pseudo-static analyses,applying either a displacement-based or a force-based approach,were carried *** the case of the tunnel,the seismic increments of internal forces in the lining could be calculated through both a simplified pseudostatic analysis and a full dynamic analysis,showing a satisfying ***,the results of the study demonstrated that the seismic increments of internal forces in the diaphragm walls of the station and in the segmented lining of the tunnel were quite *** case study encourages improving the reliability of simplified methods based on the more

关键词： Underground structures Tunnels Diaphragm walls seismic behavior Pseudo-static analysis Dynamic analysis soil-structure interaction

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快速吸合

现代制造 2013年第17期 38-39页

作者： andreas Beck Phoenix Contact公司光伏设备生产经理

目前，人们对光伏组件接线盒提出的要求已经不再是简单的产品质量、可靠性和传输率了，对光伏系统本身的质量要求也开始纳入其中。用户最终期望光伏组件接线盒最少可以使用25年。为此，精心选择合适的原材料，经常性的质量监控都必不可... 详细信息

目前，人们对光伏组件接线盒提出的要求已经不再是简单的产品质量、可靠性和传输率了，对光伏系统本身的质量要求也开始纳入其中。用户最终期望光伏组件接线盒最少可以使用25年。为此，精心选择合适的原材料，经常性的质量监控都必不可少。尽管接线柱配置在光伏组件的背面，

关键词：吸合光伏组件产品质量光伏系统质量监控接线盒传输率可靠性

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基于PC控制可优化测试数据

现代制造 2020年第28期 42-43页

作者： andreas Iseli 不详

为了提高测试能力以及测试数据的数量和质量,瑞士主轴制造商Fischer股份公司开发了一种基于PC控制技术的测试台,有了这种主轴测试台,企业就做好了数字化的准备。电机主轴必须满足极高的质量要求,因此位于瑞士Herzogenbuchsee的Fischer... 详细信息

为了提高测试能力以及测试数据的数量和质量,瑞士主轴制造商Fischer股份公司开发了一种基于PC控制技术的测试台,有了这种主轴测试台,企业就做好了数字化的准备。电机主轴必须满足极高的质量要求,因此位于瑞士Herzogenbuchsee的Fischer股份公司的每个主轴在交付前都要完成复杂的测试程序。为了提高测试能力以及测试数据的数量和质量,Beckhoff公司开发了一种基于PC控制技术的测试台,它也是数字化进程中的重要一步。

关键词：测试能力测试数据 PC控制数字化进程 Fischer 测试程序测试台数量和质量

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面向太阳——自动光源跟踪技术

现代制造 2013年第17期 24-25页

作者： andreas Winkler

未来，大型太阳能发电场生产的电力将出售给电力交易所，这样将会使得电力的价格起伏波动，因为不同的季节有着不同的日照时间。在中欧，人们尽可能地始终把太阳能发电设备竖起180°朝向南方，因为中午是阳光照射最强烈的时候，也是能... 详细信息

未来，大型太阳能发电场生产的电力将出售给电力交易所，这样将会使得电力的价格起伏波动，因为不同的季节有着不同的日照时间。在中欧，人们尽可能地始终把太阳能发电设备竖起180°朝向南方，因为中午是阳光照射最强烈的时候，也是能够产生最大电力的时候，但时间最短。

关键词：太阳能发电设备跟踪技术光源日照时间阳光照射电力交易所发电场

Entanglement and Entropy squeezing for Moving Two Two-Level Atoms Interaction with a Radiation Field

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Computers, Materials & Continua 2021年第3期66卷 2445-2456页

作者： s.Abdel-Khalek E.M.Khalil Beida Alsubei A.Al-Barakaty s.M.Abo Dahab Department of Mathematics Collage of ScienceTaif UniversityTaif21944Saudi Arabia Department of Mathematics Faculty of ScienceSohag UniversitySohag82524Egypt Department of Mathematics Faculty of ScienceAl-Azhar UniversityCairoEgypt Department of Physics The University College at AljamoumUmm Al-Qura UniversityMakkahSaudi Arabia Department of Mathematics Faculty of ScienceSouth Valley UniversityQena83523Egypt

In this paper,we analyzed squeezing in the information entropy,quantum state fidelity,and qubit-qubit entanglement in a time-dependent *** proposed model consists of two qubits that interact with a two-mode electromagnetic field under the dissipation *** analytical solution is calculated by considering the constants for the equations of *** effect of the general form of the time-dependent for qubit-field coupling and the dissipation term on the temporal behavior of the qubit-qubit entanglement,quantum state fidelity,entropy,and variance squeezing are *** is shown that the intervals of entanglement caused more squeezing for the case of considering the time-dependent ***,the entanglement between the qubits became more substantial for the case of time *** and negativity rapidly reached the minimum values by increasing the effect of the dissipation ***,the amount of variance squeezing and the amplitude of the oscillations decreased considerably when the time dependence increased,but the fluctuations increased *** show the relation between entropy and variance squeezing in the presence and absence of the dissipation parameter during the interaction *** result enables new parameters to control the degree of entanglement and squeezing,especially in quantum communication.

关键词： Entropy squeezing variance squeezing qubit-qubit entanglement moving qubits

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模拟仿真不仅仅只是针对“大型企业”

现代制造 2018年第36期 50-51页

作者： andreas Wierse 不详

那些未在产品开发过程中运用模拟仿真技术的人如今都会有些失落:毕竟效率对公司的竞争力起着决定性的作用,即便是中小企业也不能置身事外。一旦有了正确的支持,预想中的困难很快就能迎刃而解。

关键词：模拟仿真技术大型企业产品开发过程中小企业竞争力