检索结果-南通市图书馆

Analytical study of pulsatile mixed electroosmotic and shear-driven flow in a microchannel with a slip-dependent zeta potential

引用

Applied Mathematics and Mechanics(English Edition) 2023年第6期44卷 1007-1022页

作者： D.BANERJEE s.pati P.BIsWAs Department of Mathematics National Institute of Technology SilcharAssam 788010India Department of Mechanical Engineering National Institute of Technology SilcharAssam 788010India

The escalation of zeta potential by the influence of wall slip for the electrokinetically modulated flow through a microchannel motivates to consider the impact of hydrodynamic slippage upon the zeta or surface *** reported study undergoes an analytical exploration of the pulsatile electroosmosis and shear-actuated flow characteristics of a fluid with a Newtonian model through a microchannel with parallel plates by invoking the reliance of a zeta or surface potential on *** linearized Poisson-Boltzmann and momentum equations are solved analytically to obtain the explicit expression of the electrical potential induced in the electrical double layer(EDL),the flow velocity field,and the volumetric flow rate for an extensive span of *** velocity field proximal to the microchannel wall is observed to enhance by an apparent zeta potential,and is further escalated for a thinner EDL and an oscillating electric field with a higher ***,near the core region of the microchannel,the flow velocity becomes invariant with the EDL *** result shows that the lower wall velocity contributes to the flow velocity along with the electroosmotic body force and the impact of the velocity of the wall underneath diminishes proximal to the upper ***,the volumetric flow rate increases when the thickness of the EDL decreases,owing to the influence of the wall ***,for thinner EDLs and medium and higher oscillating Reynolds numbers,the volumetric flow rate varies non-monotonously,correlative to the slip-free and slip cases.

关键词： apparent zeta potential electroosmotic flow Newtonian fluid pulsatile flow

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

搅拌摩擦加工对Al-TiB2复合材料在3.5 wt.%氯化钠溶液中腐蚀行为的影响（英文）

引用

Transactions of Nonferrous Metals society of China 2019年第7期29卷 1383-1392页

作者： Ritukesh sHARMA Amit Kumar sINGH Amit ARORA s. pati P. s. DE school of Minerals Metallurgical and Materials Engineering Indian Institute of Technology Bhubaneswar India Materials science and Engineering Indian Institute of Technology Gandhinagar India

研究铸态和搅拌摩擦加工后的Al-TiB2 基复合材料在3.5 wt.%氯化钠溶液中的显微组织和腐蚀行为。采用X 射线衍射、扫描电镜和电子背散射衍射技术对材料的显微组织进行表征,并采用线性/循环动电位极化、电化学阻抗谱和AsTM-G67 测试评估... 详细信息

研究铸态和搅拌摩擦加工后的Al-TiB2 基复合材料在3.5 wt.%氯化钠溶液中的显微组织和腐蚀行为。采用X 射线衍射、扫描电镜和电子背散射衍射技术对材料的显微组织进行表征,并采用线性/循环动电位极化、电化学阻抗谱和AsTM-G67 测试评估材料的腐蚀行为。结果显示,复合材料铝基体中含有亚微米级的TiB2 颗粒,其周围围绕着块状和细小的Al3Ti 团簇,材料表现出较低且均匀的腐蚀速率。在动电位循环测验中,没有出现正循环曲线,证明其具有抵抗点蚀的能力,这归因于TiB2 粒子的非导电性本质和块状Al3Ti 相的含量可控。然而,无论是搅拌摩擦加工态还是铸态复合材料都容易发生晶间腐蚀,晶界处的Al3Ti 和TiB2 是腐蚀的起始位点;电化学阻抗研究表明,这是由于Al3Ti 和TiB2 对保护氧化膜具有不利影响,且随着浸泡时间的增加,其不利影响增加。

关键词：搅拌摩擦加工腐蚀行为 Al基复合材料电化学阻抗谱(EIs)

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

印度沿海鲳鱼的分布及其生态学

引用

国外水产 1983年第4期 25-27页

作者： s.pati 濮皓农

鲳鱼具有很高的商业价值,广受渔民群众的欢迎。这种渔业的捕捞对象有三种,即银鲳(Pampus argenteus)、中国鲳(***-sis)和乌鲳(Parastromateus niger),其中以银鲳最多,占鲳鱼产量的90%。研究这些鱼

关键词：马哈拉施特拉奥里萨鳗鱼印度南亚古吉拉特生态学

来源：

同方期刊数据库评论

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

People’s perspectives on heritage conservation and tourism development:a case study of Varanasi

引用

Built Heritage 2023年第3期7卷 34-45页

作者： Ananya pati Mujahid Husain Department of Geography Jamia Millia IslamiaNew Delhi110025India BIM Plus Plus Project Consultants L.L.C Lynx TowerDubai Silicon Oasis341041DubaiUnited Arab Emirates

The conservation of heritage and heritage-based tourism are interrelated activities in which the development in one can lead to the growth of the other and vice *** recent years,people have become increasingly aware of the importance of heritage and the necessity of its ***’s knowledge and preservation of their roots and emotional attachments to traditions and places are beneficial for heritage conservation *** places are also considered a growth point for the tourism industry that supports small-and medium-scale industries as well as numerous cottage ***,with the development of tourism and related industries in heritage areas,the local community may face difficulties in performing their day-to-day activities in the *** many cases,local communities need to relocate and people must leave their residences due to the demand for tourism development.A case study of Varanasi City was conducted to obtain a detailed understanding of the impact of a recent tourism development programme(the Kashi Vishwanath Corridor Project)and people’s perception of it through a review of newspaper *** was found that people had mixed reactions regarding the development *** immediate residents of the area who were directly affected by the process in terms of emotional,economic and social loss were opposed to the project,while tourists and other residents of the city were pleased with the development *** paper attempts to identify the changes that occurred in the area due to the project and to capture people’s perspectives regarding the corridor project of Varanasi.

关键词： Heritage Tourism Conservation Community Development

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

Potential of asymmetrical si/Ge and Ge/si based hetero-junction transit time devices over homo-junction counterparts for generation of high power

引用

Journal of semiconductors 2011年第11期32卷 24-30页

作者： Moumita Mukherjee Pravash R.Tripathy s.P.pati Centre of Millimeter-Wave semiconductor Devices and systems Institute of Radio Physics and ElectronicsUniversity of Calcutta Puroshottam Institute of Engineering & Technology RourkelaOdishaIndiaSambalpur University AICTE Emeritus Professor NISTPelur HillsBerhampurOdishaIndia

static and dynamic properties of both complementary n-Ge/p-si and p-Ge/n-si hetero-junction DoubleDrift IMPATT diodes have been investigated by an advanced and realistic computer simulation technique, devel- oped by the authors, for operation in the Ka-, V- and W-band frequencies. The results are further compared with corresponding si and Ge homo-junction devices. The study shows high values of device efficiency, such as 23%, 22% and 21.5%, for n-Ge/p-si IMPATTs at the Ka, V and W bands, respectively. The peak device negative con- ductances for n-si/p-Ge and n-Ge/p-si hetero-junction devices found to be 50.7× 10^6 s/m^2 and 71.3× 106 s/m^2, which are -3-4 times better than their si and Ge counterparts at the V-band. The computed values of RF powerdensity for n-Ge/p-si hetero-junction IMPATTs are 1.0 ×10^9, 1.1 × 10^9 and 1.4× 10^9 W/m^2, respectively, for Ka-, V- and W-band operation, which can be observed to be the highest when compared with si, Ge and n-si/p-Ge devices. Both of the hetero-junctions, especially the n-Ge/p-si hetero-junction diode, can thus become a superior RF-power generator over a wide range of frequencies. The present study will help the device engineers to choose a suitable material pair for the development of high-power MM-wave IMPATT for applications in the civil and defense-related arena.

关键词： admittance characteristics double drift diode high-power IMPATT high-efficiency MM-wave de- vice si/Ge and Ge/si material systems

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

An analytical study on the Rayleigh wave generation in a stratified structure

引用

Applied Mathematics and Mechanics(English Edition) 2020年第7期41卷 1039-1054页

作者： A.MANDI s.KUNDU P.pati P.C.PAL Department of Mathematics and Computing Indian Institute of Technology(Indian School of Mines)Dhanbad 826004India

In this paper,an analytical method is used to investigate the Rayleigh wave generation in a stratified structure and the wave generation in a dry sandy layer constrained between the couple stress and inhomogeneous orthotropic *** study is devoted to analyzing the impact of various effective parameters associated with the media on the phase velocities of the *** displacement components for each medium are derived by implementing the separable variable *** frequency equa-tion is secured by using the displacement components in the boundary conditions,imposed at the interfaces between the layer and ***,the secured equation is the relation between the phase velocity and the wave *** computations are performed,and graphical representations are demonstrated between the phase velocity and the wave number for both phase velocities with different values of the *** comparison between the phase velocities is observed for the same value of each pa-rameter.

关键词： Rayleigh wave dry sandy layer couple stress orthotropic phase velocity wave number

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

si/si C-based DD hetero-structure IMPATTs as MM-wave power-source:a generalized large-signal analysis

引用

Journal of semiconductors 2015年第6期36卷 58-63页

作者： Moumita Mukherjee P.R.Tripathy s.P.pati Centre for MM-wave semiconductor Devices and systems (CMsDs) DRDO Hi-Tech College of Engineering Former Professor of sambalpur University

A full-scale, self-consistent, non-linear, large-signal model of double-drift hetero-structure IMPATT diode with general doping profile is derived. This newly developed model, for the first time, has been used to analyze the large-signal characteristics of hexagonal siC-based double-drift IMPATT diode. Considering the fabrication feasibility, the authors have studied the large-signal characteristics of si/siC-based hetero-structure devices. Under small-voltage modulation （~ 2%, i.e. small-signal conditions） results are in good agreement with calculations done using a linearised small-signal model. The large-signal values of the diode＇s negative conductance （5 × 106 s/m2）, susceptance （10.4 × 107 s/m2）, average breakdown voltage （207.6 V）, and power generating efficiency （15%, RF power： 25.0 W at 94 GHz） are obtained as a function of oscillation amplitude （50% of DC breakdown voltage） for a fixed average current density. The large-signal calculations exhibit power and efficiency saturation for large-signal （〉 50%） voltage modulation and thereafter decrease gradually with further increasing voltage-modulation. This generalized large-signal formulation is applicable for all types of IMPATT structures with distributed and narrow avalanche zones. The simulator is made more realistic by incorporating the space-charge effects, realistic field and temperature dependent material parameters in si and siC. The electric field snap-shots and the large-signal impedance and admittance of the diode with current excitation are expressed in closed loop form. This study will act as a guide for researchers to fabricate a high-power si/siC-based IMPATT for possible application in high-power MM-wave communication systems.

关键词： si/siC hetero-structure double drift diode full-scale large-signal modelling high-power parasiticeffects noise-analysis

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

A Comprehensive View on the Progress of Organoid Research with an Emphasis on its Relevance to Disease Characterization

引用

Biomedical and Environmental sciences 2023年第10期36卷 959-971页

作者： Chandra KIsHORE Vaishali Ji saurav Mallik Ayan MUKHERJI Namrata TOMAR soumen Kumar pati LI Ai Min sinthia Roy BANERJEE soumadip GHOsH Raza Ali NAQVI University of California Irvine Medical CenterOrangeCA 92868USA Department of Botany J.D.Women’s CollegeBailey RoadPatna-800023India Harvard T.H.Chan school of Public Health BostonMA 02115USA Department of Information Technology Haldia Institute of TechnologyHaldiaWest BengalIndia Medical College of Wisconsin MilwaukeeWI 53226USA Department of Bioinformatics Maulana Abul Kalam Azad University of TechnologyNadiaWest BengalIndia Center for Precision Health School of Biomedical InformaticsThe University of Texas Health Science Center at HoustonHoustonTX 77030USA school of Computer science and Engineering Xi’an University of TechnologyXi'an 710048ShaanxiChina Department of Information Technology Guru Nanak Institute of TechnologyKolkataWest BengalIndia Department of Computer science and Engineering Sister Nivedita UniversityKolkataWest BengalIndia Center for Precision Health School of Biomedical InformaticsUniversity of IllinoisChicago60612USA

INTRODUCTION Organoids are primary tissue or stem cells derived cell aggregates that have the capacity for self-organization,self-renewal,and the capacity to mimic cellular and tissue level *** can overcome the shortc... 详细信息

关键词： functions. overcome shortcomings

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

弱值反常的条件及弱测量下的不确定性和互补性

引用

中国科学：数学 2023年第12期53卷 1535-1544页

作者： Arun Kumar pati 武俊德 Quantum Information and Computation Group Harish-Chandra Research InstituteAllahabad 211019India 浙江大学数学科学学院杭州310027

量子测量是量子理论的核心要素之一.von Neumann在《量子力学的数学基础》中深入分析了测量问题.他的结论是,整个物理世界都可能受到通用波函数的制约.由于需要“计算之外的某些东西”来使波函数崩溃,崩溃是由实验者的意识引起的.他认... 详细信息

量子测量是量子理论的核心要素之一.von Neumann在《量子力学的数学基础》中深入分析了测量问题.他的结论是,整个物理世界都可能受到通用波函数的制约.由于需要“计算之外的某些东西”来使波函数崩溃,崩溃是由实验者的意识引起的.他认为量子力学的数学允许波函数的崩溃位于测量装置到人类观察者“主观意识”因果链中的任何位置.测量导致被测系统不可避免地崩溃.为此,Ahrronov等(1987)提出了弱测量理论和弱值概念.本文从基本层面上分析弱值反常性的成因,以及弱测量导致的不确定性和互补性.

关键词：弱测量弱值不确定性互补性

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

Wave and particle properties can be spatially separated in a quantum entity

引用

Photonics Research 2021年第7期9卷 1379-1383页

作者： PRATYUsHA CHOWDHURY ARUN KUMAR pati JING-LING CHEN Indian Institute of Technology Guwahati GuwahatiAssam 781039India Quantum Information and Computation Group Harish-Chandra Research InstituteJhunsiAllahabad 211019India Theoretical Physics Division Chern Institute of MathematicsNankai UniversityTianjin 300071China

Wave and particle are two fundamental properties of nature. The wave–particle duality has indicated that a quantum object may exhibit the behaviors of both wave and particle,depending upon the circumstances of the experiment. The major significance of wave–particle duality has led to a fundamental equation in quantum mechanics:the schr?dinger equation. At present,the principle of wave–particle duality has been deeply rooted in people’s hearts. This leads to a common-sense perception that wave property and particle property coexist simultaneously in a quantum entity,and these two physical attributes cannot be completely separated from each other. In classical physics,a similar common-sense thought is that a physical system is inseparable from its physical ***,this has been recently challenged and beaten by a quantum phenomenon called the "quantum Cheshire cat," in which a cat and its grin can be spatially separated. In this work,we propose a thought experiment based on the technology similar to the quantum Cheshire cat. We find that wave and particle attributes of a quantum entity can be completely separated,thus successfully dismantling the wave–particle duality for a quantum entity. Our result is still consistent with the complementarity principle and deepens the understanding of quantum foundations.

关键词： properties. equation. quantum

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：