检索结果-南通市图书馆

Correlation of work function and stacking fault energy through Kelvin probe force microscopy and nanohardness in diluteα-magnesium

引用

Journal of Magnesium and Alloys 2024年第1期12卷 237-250页

作者： Yigit Türe ali Arslan kaya Hüseyin Aydin Jiang Peng Servet Turan Eskisehir Technical University Porsuk Vocational SchoolElectronics and Automation DepartmentProgram of MechatronicsEskisehirTurkey Mugla Sitki Kocman University Engineering FacultyMetallurgy and Materials Engineering DepartmentMuglaTurkey Hüseying Aydın TUBITAK MRCTurkey Jiang Peng Chongqing UniversityChina Eskisehir Technical University Engineering FacultyMaterials Science and Engineering DepartmentEskisehirTurkey

Electronic interactions of the Group 2A elements with magnesium have been studied through the dilute solid solutions in binary Mg-Ca,Mg-Sr and Mg-Ba *** investigation incorporated the difference in the‘Work Function'(ΔWF)measured via Kelvin Probe Force Microscopy(KPFM),as a property directly affected by interatomic bond types,*** electronic structure,nanoindentation measurements,and Stacking Fault Energy values reported in the *** was shown that the nano-hardness of the solid-solutionα-Mg phase changed in the order of Mg-Ca>Mg-Sr>***,it was shown,by also considering the nano-hardness levels,that SFE of a solid-solution is closely correlated with its‘Work Function'***-hardness measurements on the eutectics andΔWF difference between eutectic phases enabled an assessment of the relative bond strength and the pertinent electronic structures of the eutectics in the three *** withΔWF and at least qualitative verification of those computed SFE values with some experimental measurement techniques were considered important as those computational methods are based on zero Kelvin degree,relatively simple atomic models and a number of *** asserted by this investigation,if the results of measurement techniques can be qualitatively correlated with those of the computational methods,it can be possible to evaluate the electronic structures in alloys,starting from binary systems,going to ternary and then multi-elemental *** investigation has shown that such a qualitative correlation is *** all,the SFE values are not treated as absolute values but rather become essential in comparative investigations when assessing the influences of alloying elements at a fundamental level,that is,free electron density *** study indicated that the principles of‘electronic metallurgy'in developing multi-elemental alloy systems can be followed via practical experimental methods,i.e.ΔWF measurements using KPF

关键词： Mg alloys Dilute alloys Work function Stacking fault energy Kelvin probe force microscopy Short range order Miedema Nanoindentation Eutectics

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Production of porous Ni-Ti alloy and test of its biocompatibility under in-vivo conditions

引用

Journal of Biomedical Science and Engineering 2010年第12期3卷 1161-1168页

作者： ali kaya Gur Nuri Orhan Emine Unsaldi ali Said Durmus Neriman Colakoglu Department of Metallurgy Education Technical Education FacultyFirat UniversityElazigTurkey Department of Surgery Faculty of VeterinaryFirat UniversityElazigTurkey Histology and Embryology Department Medical FacultyFirat UniversityElazigTurkey

Biomaterials have been out of commonly used materials in biomedical applications in recent years. Today among the mostly-used biocompatible metals are especially Ni-Ti alloys. For conducting this study, having extensive usage area in biomedical applications, Ni and Ti materials were utilized for an alloy production. Following being mixed using a suitable mixer at 49Ni/51Ti %wt., the alloy was exposed to cold pressure of 200 MPa and sintered in a mold. In addition, the material gained porosity appearance thanks to usage of the synthesized (SHS) method and then the final shape of the specimen was taken using the method of wire electro erosion discharge machining (WEDM). Afterwards, the specimen was subjected to the biocompatibility test in in-vivo environment by means of on a 3-year-old female dog.

关键词： Biomaterials NiTi Igntion Implant In-Vivo

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Coupling of b2-adrenoceptor to Gs and adenylyl cyclase in caveolin-rich low density membrane fractions. Comparison of different preparation techniques

Coupling of b2-adrenoceptor to Gs and adenylyl cyclase in ca...

引用

第十五届国际药理学大会

作者： Oner Sadik kaya ali Onaran Ongun Ugur Ozlem Ankara University Fac. Med. Dept. Pharmacol. And Mol. Biol. Tech. Resch. Devolopment Unit.Ankara TURKEY. Ankara University Inst. Biotechnol. And Mol.Biol. Tech.Resch. Devolopment Unit. Ankara TURKEY. Ankara University Fac. Med. Dept. Pharmacol. And Mol.Biol. Tech. Resch. Devolopment Unit.Ankara TURKEY. Ankara University Fac. Med. Dept. Pharmacol. And Mol.Biol. Tech. Resch. Devolopment Unit.Ankara TURKEY.

＜正＞ Caveolin - rich membrane rafts, known as caveolae. can be isolated as detergent - resistant low density fractions （DRLDF） using different solubilization and frac-tionation methods. As all the detergents used for solubilization potentially change properties of the proteins, each of these methods can cause artifacts. Here, we compared the localization of. and functional coupling between. b2 - adrenoceptor （b2AR）. Gs and adenylyl cyclase in caveolinrich DRLDF of b2AR overexpress-ing HEK- 293 cells obtained by: 1) Triton X- 100 or 2) Octyl Glycoside solubilization. or 3) extensive homogenization without solubilization. followed by sucrose gradient fractionation. Both the membrane/DRLDF ratios and the functional properties of the proteins were found to vary considerably between the methods used, octyl glycoside solubilization being the superior one as the ligand binding properties of the b2AR and functional coupling between b2AR. Gs and adenylyl cyclase seemed to remain intact in the DRLDF obtained by this method. In any case, functional interactions between the proteins differed from what observed in bulk membrane.

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

Measurement of post exercise arterial waveform and time relationship in the brachial artery

Measurement of post exercise arterial waveform and time rela...

引用

第29届FIMS世界运动医学大会

作者： ali Murat ZERGEROGLU ali kaya Evren USTUNER Burak KUNDURACIOGLU Hasan OZCAN Gulriz ERSOZ

Purpose: The aim of this study was to determine when triphasic velocity waveforms reappear after arm exercise in the brachial artery and to find out whether there is an adaptational difference between sedentary indivi...

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

Endocarditis Due to Vancomycin-Resistant <i>Enterococccus gallinarum</i>in a Patient with End-Stage Renal Failure: A Case Report

引用

Advances in Infectious Diseases 2012年第1期2卷 9-12页

作者： Gulden Ersoz Mustafa Uguz Barlas N. Aytacoglu ali kaya Department of Cardiovascular Surgery Faculty of Medicine Mersin University Mersin Turkey Department of Infectious Diseases and Clinical Microbiology Faculty of Medicine Mersin University Mersin Turkey

The first described vancomycin resistant enterococci (VRE) was about twenty years ago. Recently VRE have been reported by many clinics. However endocarditis due to VRE is still a rare entity and there are only a few cases reported in the literature. We are reporting a 59-year-old male patient with chronic renal failure who was on hemodialysis. He presented with a sudden onset of fever, tachycardia and respiratory distress. The performed echocardiography revealed vegetations on the mitral and aortic valves. As he was diagnosed to have infective endocarditis the patient was put on ampicillin and gentamicin therapy. He underwent an emergent mitral and aortic valve surgery due to ensued heart failure. While he was still on ampicillin and gentamicin therapy, E. gallinarum, which was resistant to vancomycin (MIC = 8 mg/L), was isolated from the surgical valve specimens and hence his antibiotic regime was switched to teicoplanin (MIC < 0.5 mg/L). 28 days after teicoplanin therapy the patient was discharged with free of symptoms and any complication. This patient is presented as an example for an endocarditis with an unusual type of enterococci.

关键词： Infective Endocarditis Vancomycin-Resistant Enterococci E. gallinarum

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Genuine entanglement under squeezed generalized amplitude damping channels with memory

引用

Chinese Physics B 2024年第2期33卷 158-163页

作者： Mazhar ali Department of Electrical Engineering Faculty of EngineeringIslamic University MadinahMadinah 107Saudi Arabia

We study genuine entanglement among three qubits undergoing a noisy process that includes dissipation, squeezing,and decoherence. We obtain a general solution and analyze the asymptotic quantum states. We find that most of these asymptotic states can be genuinely entangled depending upon the parameters of the channel, memory parameter, and the parameters of the initial states. We study Greenberger–Horne–Zeilinger(GHZ) states and W states, mixed with white noise,and determine the conditions for them to be genuinely entangled at infinity. We find that for these mixtures, it is possible to start with a bi-separable state(with a specific mixture of white noise) and end with genuine entangled states. However, the memory parameter μ must be very high. We find that in contrast to the two-qubit case, none of the three-qubit asymptotic states for n → ∞ are genuinely entangled.

关键词： genuine entanglement squeezed thermal baths multipartite states

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Heat transfer analysis in particle-laden flows using the immersed boundary method

引用

Particuology 2024年第7期90卷 394-403页

作者： ali Abbas Zaidi Department of Mechanical Engineering University of Manitoba75A Chancellors CircleWinnipegR3T 5V6Canada

This paper investigates an efficient immersed boundary method(IBM)for multiple-core CPU machines with local grid refinement for the calculation of heat transfer between fluids and finite-sized *** fluid momentum equations are solved by using the fractional step method,while the energy equation is solved by employing the second-order Adams-Bashforth *** efficient load balancing between the CPU cores,the coupling between particles and fluid is obtained by applying the body force in the fluid equations,which depends on the solid volume fraction of particles contained in each grid cell,and then by linearly interpolating the particle temperature and velocity on the fluid grid cell(in place of the delta function commonly used in literature).Several test cases from the literature are studied,and good agreement is observed between the simulation results and the ***,a scaling study on multiple core machines is performed,demonstrating the proposed IBM's capabilities for a significant reduction in processing time.

关键词： Heat transfer Immersed boundary method Particle resolved direct numerical simulations Fluid solid interactions

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Simulation of the deformable lateral boundaries in biaxial test using DEM

引用

Particuology 2024年第5期88卷 161-175页

作者： ali Momeni Barry Clarke Yong Sheng ali Hassanpour WSP 3 Wellington PlaceLeedsLS1 4APUK Hull University HullHU6 7RXUK School of Civil Engineering University of LeedsLeedsLS2 9JTUK School of Computer Science University of HullHullHU6 7RXUK School of Chemical and Process Engineering University of LeedsLeedsLS2 9JTUK

Applying the discrete element method(DEM)in soil mechanics can provide abundant information at the particle-scale and facilitates illustration of the macro-mechanical behaviour of soils based on the inter-particle *** triaxial test is one of the most common laboratory methods to study the macro-mechanical behaviour of particulate materials such as ***,many problems in geotechnical design can be assumed and simplified as a plane strain *** a biaxial test can be conducted to reproduce the macro-mechanical behaviour of soil,where the sample is enclosed by two horizontal rigid platens and a vertical latex membrane,which is a deformable continuous element and allows the enclosed specimen to deform freely while maintaining confining stress during *** paper presents an algorithm to represent physical and mechanical characteristics of latex membrane in the 2D DEM simulation of biaxial test using the PFC^(2D) *** investigate the impact of the lateral boundary conditions on the micro-macro mechanical behaviours of soil samples,two sets of DEM biaxial tests are conducted,*** rigid and deformable lateral boundary *** DEM modeling results indicate that the lateral boundary conditions have a significant effect on the micro-scale fabric properties,thickness and inclination of the shear *** comparison between these two simulations also demonstrates that the lateral boundary conditions play a major role in the peak and post-peak stress-strain behaviours as well as the dilation and critical state behaviours of granular soils.

关键词： Discrete element method Biaxial test Deformable boundaries Shear band Critical state Fabric anisotropy Geometrical stability index

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Sensing the heavy water concentration in an H_(2)O-D_(2)O mixture by solid-solid phononic crystals

引用

Chinese Physics B 2024年第4期33卷 493-498页

作者： Mohammadreza Rahimi ali Bahrami Optoelectronic and Nanophotonics Research Laboratory(ONRL) Faculty of Electrical EngineeringSahand University of TechnologyTabrizIran

A new method based on phononic crystals is presented to detect the concentration of heavy water(D_(2)O)in an H_(2)O-D_(2)O *** have been obtained and analyzed in the concentration range of 0%-10%and 90%-100%D_(2)O.A proposed structure of tungsten scatterers in an aluminum host is *** order to detect the target material,a cavity region is considered as a sound wave resonator in which the target material with different concentrations of D_(2)O is *** changing the concentration of D_(2)O in the H_(2)O-D_(2)O mixture,the resonance frequency undergoes a frequency *** 1%change in D_(2)O concentration in the H_(2)O-D_(2)O mixture causes a frequency change of about 120 *** finite element method is used as the numerical method to calculate and analyze the natural frequencies and transmission spectra of the proposed *** performance evaluation index shows a high Q factor up to 1475758 and a high sensitivity up to 13075,which are acceptable values for sensing *** other figures of merit related to the detection performance also indicate high-quality performance of the designed sensor.

关键词： phononic crystals sensor H_(2)O-D_(2)O mixture cavity

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Note on Lower Triassic Gondolelloid Conodont Rediversifications with Emphasis on the Spathian Recovery

引用

Journal of Earth Science 2024年第4期35卷 1236-1242页

作者： ali Murat Kilic Department of Geological Engineering Faculty of EngineeringBalikesir UniversityBalikesir99100Turkey

Conodonts,as a biotic group,next to ammonoids,pollen and spores,crustaceans and vertebrates,provide proxy clues for environment and age assessments of the rocks in which they *** are widely used for Triassic marine ***,there are various discussions about their multielement taxonomy and evolutionary lineages(e.g.,generation,speciation).Although first studies reported that most Triassic conodont species were unimembrate,studies carried out in the following years maintained that all Triassic conodonts were *** statistical reconstructions of a number of Triassic apparatuses were attempted,the discovery of fused clusters and natural assemblages has subsequently demonstrated that Triassic conodonts are indeed multimembrate,and all of the elements exist together in the same *** present paper aims to clarify the evolutionary relationship and array of some Lower Triassic *** dagisi *** described.

关键词： Triassic Spathian conodont Columbitella Siberia environmental geology

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：