检索结果-南通市图书馆

Exploring the impact of stratification on the dynamics of bioconvective thixotropic fluid conveying tiny particles and Cattaneo-Christov model:Thermal storage system application

引用

Propulsion and Power Research 2024年第3期13卷 416-432页

作者： T.Oreyeni M.D.Shamshuddin A.M.Obalalu A.Saeed Nehad Ali Shah department of Physical Sciences Mathematics Programme UnitPrecious Cornerstone UniversityIbadanNigeria department of Computer Science and Artificial Intelligence(mathematics) SR UniversityWarangalTelangana State 506371India department of mathematics Augustine University Ilara EpeLagosNigeria Center of Excellence in Theoretical and Computational Science(TaCS-CoE) Faculty of ScienceKing Mongkut’s University of Technology Thonburi(KMUTT)126 Pracha Uthit Rd.BangModThung KhruBangkok 10140Thailand department of mathematics and statistics College of ScienceImam Mohammad Ibn Saud Islamic University(IMSIU)Riyadh 11623Saudi Arabia

Stratified thermal storage promotes energy sustainability by storing excess energy during times of low demand for later use making it possible to integrate renewable energy sources like solar and *** communication discusses the significance of triple stratifica-tion using the Cattaneo-Christov model in the bioconvectiveflow of thixotropicfluid coexisting with nanoparticles and gyrotactic *** Cattaneo-Christov heat and massflux is incorporated into thefluid model allowing more accurate prediction of heat and mass phenomena in thefluid *** governing partial differential equations that describefluidflow are parametrized to yield an ordinary differential equation system by adopting suitable *** series solutions are obtained by applying the homotopy analysis method(HAM).The effects of relevant parameters on the various profiles are revealed and accurately *** is observed that amplified thermal stratification lowers the temperature of ***,Brownian motion is used to illustrate the random movement of small particles suspended in liquids,and it is envisioned that the concentration distribution is significantly influenced by the Brownian motion of nanoparticles.

关键词： Cattaneo-Christov model Stratification Bioconvection Nanofluid

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

Detection of Nonlinear Behavior Induced by Hard Limiting in Voltage Source Converters in Wind Farms Based on Higher-order Spectral Analysis

引用

Journal of Modern Power Systems and Clean Energy 2024年第2期12卷 630-645页

作者： Zetian Zheng Shaowei Huang Qiangsheng Bu Chen Shen Jun Yan state Key Laboratory of Power Systems Department of Electrical EngineeringTsinghua UniversityBeijing 100084China state Grid Jiangsu Electric Power Co. Ltd.Research InstituteNanjingChina

In recent years, sub-synchronous oscillation accidents caused by wind power integration have received extensive attention. The recorded constant-amplitude waveforms can be induced by either linear or nonlinear oscillation mechanisms. Hence, the nonlinear behavior needs to be distinguished prior to choosing the analysis method. Since the 1960s, the higher-order statistics(HOS) theory has become a powerful tool for the detection of nonlinear behavior(DNB) in production quality control wherein it has mainly been applied to mechanical condition monitoring and fault diagnosis. This study focuses on the hard limiters of the voltage source converter(VSC) control systems in the wind farms and attempts to detect the nonlinear behavior caused by bi-or uni-lateral saturation hard limiting using the HOS analysis. First, the conventional describing function is extended to obtain the detailed frequency domain information on the bi-and uni-lateral saturation hard limiting. Furthermore, the bi-and tri-spectra are introduced as the HOS, which are extended into bi-and tri-coherence spectra to eliminate the effects of the linear parts on the harmonic characteristics of hard limiting in the VSC control system, respectively. The effectiveness of the HOS in the DNB and the classification of the hard-limiting types is proven, and its detailed derivation and estimation procedure is presented. Finally, the quadratic and cubic phase coupling in the signals is illustrated, and the performance of the proposed method is evaluated and discussed.

关键词： Bi-coherence spectrum detection of nonlinear behavior hard limiting higher-order statistics tri-coherence spectrum voltage source converter wind farms.

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

The burden and psychosocial impact on immediate caregivers of patients with spinal cord injury in a tertiary health facility,Edo state,Nigeria

引用

Journal of Integrative Nursing 2024年第2期6卷 103-110页

作者： Timothy Aghoghko EHWARIEME Uzezi JOSIAH Auwuli EMINA department of Nursing Science School of Basic Medical SciencesUniversity of BeninBenin CityEdo StateNigeria department of Nursing Science Delta State University AbrakaDelta StateNigeria department of Nursing Science Faculty of Basic Medical and Health SciencesBenson Idahosa UniversityBenin CityEdo StateNigeria

Objective:This study aimed to assess the burden and psychosocial impact of spinal cord injury on the immediate caregivers at a tertiary health facility in Benin City,Edo *** and Methods:A descriptive cross-sectional survey design was adopted among 73 family caregivers in the neurological ward of a tertiary health facility using a structured questionnaire as instrument of data *** collected were analyzed using descriptive statistics and multiple logistic ***:Findings revealed that an overall mean of 2.73 indicates that the burden on the caregivers was moderate with a moderate psychological impact(m=2.88)and a high sociological impact(m=3.12).Factors affecting the caregiving provided by immediate caregivers include social and household responsibilities(94.5%),financial situation(89.0%),family support(83.6%),and health status of the caregiver(80.8%).Age(odds ratio[OR]=5.67,95%confidence interval[CI]:1.23-27.17,P=0.027),education(OR=3.75,95%CI:1.05-13.39,P=0.041),and“others”(spouses,siblings,friends,or extended family members)(OR=3.167,95%CI:1.583-6.337,P=0.001)were predictors for high psychological impact while education(OR=0.074;95%CI:0.015-0.370,P=0.001)and caregiving role(OR=3.167;95%CI:0.1.583-6.337,P=0.001)high sociological ***:Majority of the caregivers experience moderate burden,moderate psychological impact,and high sociological *** these factors is essential for developing targeted interventions and support services to address the unique needs of caregivers and mitigate the burden of caregiving on their psychosocial health.

关键词： Burden caregivers predictors of psychosocial impact psychological impact sociological impact spinal cord injury

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

Numerical Solutions of Fractional Differential Equations by Using Fractional Taylor Basis

引用

IEEE/CAA Journal of Automatica Sinica 2017年第1期4卷 98-106页

作者： Vidhya Saraswathy Krishnasamy Somayeh Mashayekhi Mohsen Razzaghi department of mathematics and statistics Mississippi State University department of mathematics Florida State University

In this paper, a new numerical method for solving fractional differential equations(FDEs) is presented. The method is based upon the fractional Taylor basis approximations. The operational matrix of the fractional integration for the fractional Taylor basis is introduced. This matrix is then utilized to reduce the solution of the fractional differential equations to a system of algebraic equations. Illustrative examples are included to demonstrate the validity and applicability of this technique.

关键词： Caputo derivative fractional differential equations(FEDs) fractional Taylor basis operational matrix Riemann-Liouville fractional integral operator

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

Finding vibrations of inclined cable structures by approximately solving governing equations for exterior matrix

引用

Applied mathematics and Mechanics(English Edition) 2015年第11期36卷 1383-1402页

作者： W.PAULSEN M.MANNING department of mathematics and statistics Arkansas State University

In this paper, how to compute the eigenfrequencies of the structures composed of a series of inclined cables is shown. The physics of an inclined cable can be complicated, so solving the differential equations even approximately is difficult. However, rather than solving the system of 4 first-order equations governing the dynamics of each cable, the governing equations are instead converted to a set of equations that the exterior matrix satisfies. Therefore, the exterior matrix method （EMM） is used without solving the original governing equations. Even though this produces a system of 6 first-order equations, the simple asymptotic techniques to find the first three terms of the perturbative solution can be used. The solutions can then be assembled to produce a 6 x 6 exterior matrix for a cable section. The matrices for each cable in the structure are multiplied together, along with the exterior matrices for each joint. The roots of the product give us the eigenfrequencies of the system.

关键词： exterior matrix method (EMM) eigenfrequency inclined cable

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

APIR:Aggregating Universal Proteomics Database Search Algorithms for Peptide Identification with FDR Control

引用

Genomics, Proteomics & Bioinformatics 2024年第2期22卷 171-187页

作者： Yiling Elaine Chen Xinzhou Ge Kyla Woyshner MeiLu McDermott Antigoni Manousopoulou Scott B.Ficarro Jarrod A.Marto Kexin Li Leo David Wang Jingyi Jessica Li department of statistics and Data Science University of CaliforniaLos AngelesCA 90095USA department of Immuno-Oncology Beckman Research InstituteCity of Hope National Medical CenterDuarteCA 91010USA department of Quantitative and Computational Biology University of Southern CaliforniaLos AngelesCA 90089USA department of Cancer Biology and Blais Proteomics Center Dana-Farber Cancer InstituteDepartment of PathologyBrigham and Women’s Hospital and Harvard Medical SchoolBostonMA 02215USA department of Pediatrics City of Hope National Medical CenterDuarteCA 91010USA Bioinformatics Interdepartmental Program University of CaliforniaLos AngelesCA 90095USA department of Human Genetics University of CaliforniaLos AngelesCA 90095USA department of Computational Medicine University of CaliforniaLos AngelesCA 90095USA department of Biostatistics University of CaliforniaLos AngelesCA 90095USA

Advances in mass spectrometry(MS)have enabled high-throughput analysis of proteomes in biological *** state-of-the-art MS data analysis relies on database search algorithms to quantify proteins by identifying peptide–spectrum matches(PSMs),which convert mass spectra to peptide *** database search algorithms use distinct search strategies and thus may identify unique ***,no existing approaches can aggregate all user-specified database search algorithms with a guaranteed increase in the number of identified peptides and a control on the false discovery rate(FDR).To fill in this gap,we proposed a statistical framework,Aggregation of Peptide Identification Results(APIR),that is universally compatible with all database search ***,under an FDR threshold,APIR is guaranteed to identify at least as many,if not more,peptides as individual database search algorithms *** of APIR on a complex proteomics standard dataset showed that APIR outpowers individual database search algorithms and empirically controls the *** data studies showed that APIR can identify disease-related proteins and post-translational modifications missed by some individual database search *** APIR framework is easily extendable to aggregating discoveries made by multiple algorithms in other high-throughput biomedical data analysis,e.g.,differential gene expression analysis on RNA sequencing *** APIR R package is available at https://***/yiling0210/APIR.

关键词： Shotgun proteomics Peptide–spectrum match Peptide identification Aggregation of lists FDR control

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

PBX/Knotted 1 homeobox-2(PKNOX2)is a novel regulator of myocardial fibrosis

引用

Signal Transduction and Targeted Therapy 2024年第5期9卷 2231-2249页

作者： Liang Chen Haotong Li Xiaorui Liu Ningning Zhang Kui Wang Anteng Shi Hang Gao Deniz Akdis Ardan MSaguner Xinjie Xu Elena Osto Willem Van de Veen Guangyu Li Antoni Bayés-Genís Firat Duru Jiangping Song Xiangjie Li Shengshou Hu state Key Laboratory of Cardiovascular Disease Fuwai HospitalNational Center for Cardiovascular DiseasesChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijingP.R.China School of statistics and Data Science Nankai UniversityTianjinChina department of Cardiology University Heart CenterUniversity Hospital Zurich and University of ZurichZurichSwitzerland Institute for Clinical Chemistry University Hospital Zurich and University of ZürichZurichSwitzerland Swiss Institute of Allergy and Asthma Research(SIAF) University of ZurichDavosSwitzerland Heart Institute Hospital Universitari Germans Trias i PujolBadalonaCIBERCVSpain

Much effort has been made to uncover the cellular heterogeneities of human hearts by single-nucleus RNA ***,the cardiac transcriptional regulation networks have not been systematically described because of the limitations in detecting transcription *** this study,we optimized a pipeline for isolating nuclei and conducting single-nucleus RNA sequencing targeted to detect a higher number of cell signal genes and an optimal number of transcription *** this unbiased protocol,we characterized the cellular composition of healthy human hearts and investigated the transcriptional regulation networks involved in determining the cellular identities and functions of the main cardiac cell *** in fibroblasts,a novel regulator,PKNOX2,was identified as being associated with physiological fibroblast activation in healthy *** validate the roles of these transcription factors in maintaining homeostasis,we used single-nucleus RNA-sequencing analysis of transplanted failing hearts focusing on fibroblast *** trajectory analysis suggested that PKNOX2 was abnormally decreased from fibroblast activation to pathological myofibroblast *** gain-and loss-of-function in vitro experiments demonstrated the inhibitory role of PKNOX2 in pathological fibrosis ***,fibroblast-specific overexpression and knockout of PKNOX2 in a heart failure mouse model induced by transverse aortic constriction surgery significantly improved and aggravated myocardial fibrosis,*** summary,this study established a high-quality pipeline for single-nucleus RNA-sequencing analysis of heart *** this optimized protocol,we described the transcriptional regulation networks of the main cardiac cell subtypes and identified PKNOX2 as a novel regulator in suppressing fibrosis and a potential therapeutic target for future translational studies.

关键词： NOX2 homeostasis fibrosis

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

Multi-objective evolutionary optimization for hardware-aware neural network pruning

引用

Fundamental Research 2024年第4期4卷 941-950页

作者： Wenjing Hong Guiying Li Shengcai Liu Peng Yang Ke Tang Guangdong Provincial Key Laboratory of Brain-Inspired Inteligent Computation Department of Computer Science and EngineeringSouthern University of Science and TechnologyShenzhen 518055China Research Institute of Trustworthy Autonomous Systems Southern University of Science and TechnologyShenzhen 518055China department of statistics and Data Science Southern University of Science and TechnologyShenzhen 518055China

Neural network pruning is a popular approach to reducing the computational complexity of deep neural *** recent years,as growing evidence shows that conventional network pruning methods employ inappropriate proxy metrics,and as new types of hardware become increasingly available,hardware-aware network pruning that incorporates hardware characteristics in the loop of network pruning has gained growing attention,Both network accuracy and hardware efficiency(latency,memory consumption,etc.)are critical objectives to the success of network pruning,but the conflict between the multiple objectives makes it impossible to find a single optimal *** studies mostly convert the hardware-aware network pruning to optimization problems with a single *** this paper,we propose to solve the hardware-aware network pruning problem with Multi-Objective Evolutionary Algorithms(MOEAs).Specifically,we formulate the problem as a multi-objective optimization problem,and propose a novel memetic MOEA,namely HAMP,that combines an efficient portfoliobased selection and a surrogate-assisted local search,to solve *** studies demonstrate the potential of MOEAs in providing simultaneously a set of alternative solutions and the superiority of HAMP compared to the state-of-the-art hardware-aware network pruning method.

关键词： Multi-objective optimization Evolutionary algorithm Neural network pruning Hardware-awaremachine learning Hardware efficiency

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

Linear Algebra and Multilinear Algebra

引用

Frontiers of mathematics in China 2016年第3期11卷 509-510页

作者： Liqun QI Yimin WEI Changqing XU Tan ZHANG department of Applied mathematics The Hong Kong Polytechnic University Hong Kong China School of Mathematical Sciences Fudan University Shanghai 200433 China School of mathematics and Physics Suzhou University of Science and Technology Suzhou 215009 China department of mathematics and statistics Murray State University Murray KY 42071-0009 USA

The 2014 International Conference on Tensors, Matrices and Their Applications （TMA 2014） was held at Suzhou university of Science and Technology （USTS）, Suzhou, China, December 17-19, 2014. The academic committee ... 详细信息

关键词： LINEAR algebras TENSOR algebra MATRICES

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

Corruption,state capture,and the effectiveness of anticorruption agency in post-communist Ethiopia

引用

Economic and Political Studies 2018年第4期6卷 368-416页

作者： Seid Y.Hassan department of Economics and Finance Murray State UniversityMurrayUSA

In 2001,Ethiopia established a centralised anti-corruption agency(ACA),the Federal Ethics and Anti-corruption Commission(FEACC),purportedly to be used for curbing the rampant *** the government’s repeated admissions,corruption continues to engulf the country,indicating the failure of the FEACC to curb *** researchers attribute the FEACC’s failures to curb corruption to a host of *** article follows a different route to show why the FEACC was doomed to fail from the *** show that the war against corruption in Ethiopia collapsed mainly because of mischaracterisation of the nature of corruption in the country and how the FEACC was established–a conventional anti-corruption agency for a nonconventional problem of *** deploy some testable hypotheses to explore the scenarios under which an anticorruption agency would be *** from the corruption literature of post-communist countries,the article shows that corrupt Ethiopian practices can easily be subsumed under an extreme version of the highest form of corruption known as state *** article then moves onto unpacking the systemic and predatory nature of the Ethiopian corruption conundrum and how the FEACC approached in tackling *** so allows us to illustrate the endogenous nature of the country’s corruption patterns and why a traditional ACA is incapable of tackling a state-driven *** also lays out the flawed structures and practices of the FEACC showing why,under a state-crafted corruption conundrum,the FEACC was doomed to fail from the *** article concludes by illustrating the detrimental effects of using the agency as a political weapon to neutralise the ruling party’s political opponents as well as the failure of the war against *** calls for a different approach in combating the Ethiopian systemic corruption,a governance regime change being one of them.

关键词： Corruption state capture administrative corruption post-communist transition anti-corruption agency principal-agent theory

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

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：