检索结果-南通市图书馆

PtCu dendroframe octahedrons:Enhancing peroxidase-like activity and antibacterial efficiency through structural evolution

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano Research 2025年第1期18卷 100-106页

作者： Ri Feng Jiuyi Hu Liangjun Wang Jiayu Xu Jiajia Li Zeeshan Ahmad Shaohui Zheng Muhammad farhan Farid Wenjing Liu Faisal Saleem Key Laboratory of Flexible Electronics(KLOFE) Institute of Advanced Materials(IAM)and School of Flexible Electronics(Future Technologies)Nanjing Tech UniversityNanjing 211816China

Nanozymes,which possess enzyme-like catalytic activity,are attractive alternatives to natural *** activity is largely dependent on the structure of the ***,challenges remain in optimizing the structure-activity *** work explores the synthesis and utilization of PtCu nanostructures(NSs),focusing on their peroxidase(POD)-like properties and their potential as antibacterial *** developed PtCu dendrites that transform into unique dendroframe octahedrons(DFOs)and subsequently stabilize into solid octahedrons with unusual growth *** intermediate DFO,showed higher POD-like activity in comparison to other shapes of PtCu *** DFOs also have the better ability to consume glutathione,thus enhancing their sterilization ***,we demonstrate the effectiveness of these PtCu DFOs as powerful antibacterial *** work provides valuable information on shape dependent activities of PtCu NSs in the field of biomedicine.

关键词： nanozymes antibacterials peroxidase PtCu dendroframe octahedrons dendrites

The case of HyperLedger Fabric as a blockchain solution for healthcare applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Blockchain(Research and Applications) 2021年第1期2卷 41-55页

作者： McSeth Antwi Asma Adnane farhan Ahmad rasheed Hussain Muhammad Habib ur Rehman Chaker Abdelaziz Kerrache Networks and System Research Theme Loughborough UniversityLoughboroughLE113TTUK Systems Security Group Coventry UniversityCoventryCV15FBUK Institute of Information Security and Cyber-Physical Systems Innopolis UniversityInnopolis420500Russia Center for Cyber Physical Systems Khalifa UniversityAbu Dhabi127788United Arab Emirates Laboratoire d’Informatique et de Mathematiques Universite de LaghouatLaghouat03000Algeria

The healthcare industry deals with highly sensitive data which must be managed in a secure *** Health Records(EHRs)hold various kinds of personal and sensitive data which contain names,addresses,social security numbers,insurance numbers,and medical *** personal data is valuable to the patients,healthcare service providers,medical insurance companies,and research ***,the public release of this highly sensitive personal data poses serious privacy and security threats to patients and healthcare service ***,we foresee the requirement of new technologies to address the privacy and security challenges for personal data in healthcare *** is one of the promising solutions,aimed to provide transparency,security,and privacy using consensus-driven decentralised data management on top of peer-to-peer distributed computing ***,to solve the mentioned problems in healthcare applications,in this paper,we investigate the use of private blockchain technologies to assess their feasibility for healthcare *** create testing scenarios using HyperLedger Fabric to explore different criteria and use-cases for healthcare ***,we thoroughly evaluate the representative test case scenarios to assess the blockchain-enabled security criteria in terms of data confidentiality,privacy and access *** experimental evaluation reveals the promising benefits of private blockchain technologies in terms of security,regulation compliance,compatibility,flexibility,and scalability.

关键词： blockchain Electronic healthcare records Feasibility study Healthcare Privacy Security Use-case

Separation of Isotopes via Dynamical Delocalization

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Physics Letters 2008年第10期25卷 3660-3662页

作者： farhan Sail Department of Electronics Quaid-i-Azam University Islamabad 45320 Pakistan

Based on the dynamical delocalization phenomenon we show that different isotopes of a material can be separated. We explain that the suggested scheme can be realized in the laboratory using presently available experim... 详细信息

关键词： the power-law exponents precipitation durative abrupt precipitation change

Heat Transfer Analysis of MHD Power Law Nano Fluid Flow through Annular Sector Duct

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Thermal Science 2020年第1期29卷 169-181页

作者： AHMED farhan IQBAL Mazhar School of Natural Sciences National University of Science and Technology

Flow and heat transfer analysis of an electrically conducting MHD power law nano fluid is carried out through annular sector duct,under the influence of constant pressure *** types of nano particles(*** and TiO2)are used in power law nano *** implicit procedure,(SIP)is used to simulate the discretized coupled algebraic *** has been observed that volume fraction of nano particles,ϕand magnetic field parameter,Ha are favourable for the heat transfer rate,however,both resist the fluid *** of applied uniform transverse magnetic field exceeds in the case of shear thickening fluids(i.e.n>1)by increasing the value of Ha as compared to that in shear thinning fluids(i.e.n<1).Therefore,enhancement in heat transfer rate is comparably more in shear thickening ***,comparable limiting case study with published result is also carried out in this research paper.

关键词： electrically conducting power law nano fluid Cu nano particles TiO2 nano particles shear thickening fluid shear thinning fluid heat transfer rate friction factor

Rayleigh Waves Propagation in an Infinite Rotating Thermoelastic Cylinder

在线全文

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2021年第5期67卷 2515-2525页

作者： A.M.farhan Department of Physics Faculty of ScienceJazan UniversityJazanSaudi Arabia Department of Physics Faculty of ScienceZagazig UniversityZagazigEgypt

In this paper,we investigated the inuence of rotating half-space on the propagation of Rayleigh waves in a homogeneous isotropic,generalized thermo-elastic body,subject to the boundary conditions that the surface is traction *** addition,it is subject to insulating thermal conduction.A general solution is obtained by using Lame’potential’s and Hankel *** dispersion equations has been derived separately for two types of Rayleigh wave propagation properties by solving the equations of motion with appropriate boundary *** is observed that the rotation,frequency and r exert some influence in the homogeneous isotropic medium due to propagation of Rayleigh *** frequency equation has been derived of homogeneous properties by solving the equations of motion with appropriate boundary *** has been found that the frequency equation of waves contains a term involving the ***,the phase velocity of Rayleigh waves changes with respect to this *** the rotating vanishes,the derived frequency equation reduces to that obtained in classical generalized thermo-elastic case which includes the relaxation time of heat *** order to illustrate the analytical development,the numerical solution is carried out and computer simulated results in respect of Rayleigh wave velocity and attenuation coefficient are presented graphysically.A comparative and remarkable study has been carried out through various graphs to deliberate the consequences of different parameter on the frequency *** obtained results can be very useful in the design and optimization of Rayleigh wave.

关键词： Rayleigh waves wave propagation generalized thermoelasticity thermal stress rotation

Effect of Rotation on the Propagation of Waves in Hollow Poroelastic Circular Cylinder with Magnetic Field

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computers, Materials & Continua 2017年第2期53卷 129-156页

作者： A.M.farhan physics department faculty of science jazan university-K.S.A physics department faculty of sciencezagazig universityzagazig

Employing Biot’s theory of wave propagation in liquid saturated porous media,the effect of rotation and magnetic field on wave propagation in a hollow poroelastic circular of infinite extent is *** exact closed form solution is *** frequency equations for propagation of poroelastic cylinder are obtained when the boundaries are stress *** frequencies are calculated for poroelastic cylinder for different values of magnetic field and *** results are given and illustrated *** results indicate that the effect of rotation,and magnetic field are very *** a model would be useful in large-scale parametric studies of mechanical response.

关键词： Wave propagation rotation magnetic field poroelastic medium natural frequency.

Proper Conformal Killing Vectors in Kantowski-Sachs Metric

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Communications in Theoretical Physics 2018年第4期69卷 393-398页

作者： Tahir Hussain Muhammad farhan Department of Mathematics University of Peshawar Khyber Pakhtunkhwa Pakista

This paper deals with the existence of proper conformal Killing vectors(CKVs) in Kantowski-Sachs *** to some integrability conditions, the general form of vector filed generating CKVs and the conformal factor is presented. The integrability conditions are solved generally as well as in some particular cases to show that the nonconformally flat Kantowski-Sachs metric admits two proper CKVs, while it admits a 15-dimensional Lie algebra of CKVs in the case when it becomes conformally flat. The inheriting conformal Killing vectors(ICKVs), which map fluid lines conformally, are also investigated.

关键词： conformal killing vectors killing vectors Kantowski-Sachs metric

Prediction of Hub Corner Stall Characteristics of a Highly Loaded Low Speed Single Stage Fan

在线全文

学校读者我要写书评

暂无评论

Journal of Thermal Science 2011年第2期20卷 106-114页

作者： S. farhan Ali Hashmi School of Power and Energy 127 YouYi Xilu Northwestern Polytechincal University

In this paper a numerical investigation has been presented on the stall mechanism of a highly loaded Single Stage Low Speed Fan designed for the research test facility to be installed at North Western Polytechnic University (NWPU) Xi’an, China. The results presented are for the design point, near stall and just stall operating conditions at design speed. Design point studies have been found to be an indicative of stall area. Unsteady method of domain scaling has been used to compute the results at near stall and just stall conditions. It has been found that unlike the conventional tip leakage flow of the rotor, stator hub section is mainly responsible for the stall of the fan. The flow mechanism has been discussed with correlation to the design variables and previous investigations. Commercial CFD code NUMECA FINE/Turbo has been used for computations; results have been compared with results obtained from commercial CFD code ANSYS-CFX. The loss prediction of latter code is conservative than the former. The stall mechanism predicted by both codes is analogous.

关键词： Low stage reaction Stall Rotor hub corner separation Stator hub corner separation 3D flow separation

Disease Resistance in Maize and the Role of Molecular Breeding in Defending Against Global Threat

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Plant Biology 2012年第3期54卷 134-151页

作者： farhan Ali Jianbing Yan National Key Laboratory of Crop Genetic Improvement Huazhong Agricultural University Wuhan 430070 China Cereal Crop Research Institute （CCRI） Pirsabak Nowshehra Pakistan

Diseases are a potential threat to global food security but plants have evolved an extensive array of methodologies to cope with the invading pathogens. Non-host resistance and quantitative re- sistance are broad spectrum forms of resistance, and all kinds of resistances are controlled by extremely diverse genes called ＂R- genes＂. R-genes follow different mechanisms to defend plants and PAMP-induced defenses in susceptible host plants are referred to as basal resistance. Genetic and phenotypic diversity are vital in maize （Zea mays L.）; as such, genome wide association study （GWAS） along with certain other methodologies can explore the maximum means of genetic diversity. Exploring the complete genetic archi- tecture to manipulate maize genetically reduces the losses from hazardous diseases. Genomic studies can reveal the interaction be- tween different genes and their pathways. By confirming the specific role of these genes and protein-protein interaction （proteomics） via advanced molecular and bioinformatics tools, we can shed a light on the most complicated and abstruse phenomena of resistance.

关键词： Maize concept of pathology R-genes types of resistance genetic diversity genome wide association study.