检索结果-南通市图书馆

Advances in Manufacturing 2022年第2期10卷 260-271页

作者： muhammad Rizwan Awan Hernán A.González Rojas Jose I.Perat Benavides saqib Hameed Department of Mechanical Engineering Universitat Politecnica de Catalunya(UPC)BarcelonaSpain Department of Electrical Engineering Universitat Politecnica de Catalunya(UPC)BarcelonaSpain

Specific energy consumption is an important indicatorfora better understanding of the machinability of *** present study aims to estimate the specific energy consumption for abrasive metal cutting with ultrathin discs at comparatively low and medium feed *** an experimental technique,the cutting power was measured at four predefined feed rates for S235JR,intermetallic Fe-Al(40%),and C45K with different thermal *** variation in the specific energy consumption with the material removal rate was analyzed through an empirical model,which enabled us to distinguish three phenomena of energy dissipation during material *** thermal treatment and mechanical properties of materials have a significant impact on the energy consumption pattern,its corresponding components,and cutting *** materials consume more specific cutting energy than brttle *** specific cutting energy is the minimum energy required to remove the material,and plowing energy is found to be the most significant phenomenon of energy dissipation.

关键词： Specific cutting energy Specific energy consumption Metal cutting with abrasive disc Abrasive cut of foperation Cutting intermetallic alloy Fe-Al(40%)

Homozygosity mapping of a consanguineous Pakistani family affected with oculocutaneous albinism to Tyrosinase gene

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Ophthalmology(English edition) 2016年第5期9卷 794-796页

作者： muhammad Shakil muhammad Ikram Ullah Shabbir Hussain Sabika Firasat saqib Mahmood Haiba Kaul Department of Biochemistry University of Health Sciences Department of Biochemistry Faculty of Biological sciencesQuaid i Azam University Department of Animal Sciences Quaid i Azam University Department of Human Genetics and Molecular Biology University of Health Sciences

Dear Sir,Iam Haiba Kaul,from the Department of Biochemistry,University of Health Sciences,Lahore,Pakistan.I write to present a study of oculocutaneous albinism（OCA）in consanguineous Pakistani *** is a genetic defect... 详细信息

关键词： TYR Homozygosity mapping of a consanguineous Pakistani family affected with oculocutaneous albinism to Tyrosinase gene

Heat Transfer in MHD Flow of Maxwell Fluid via Fractional Cattaneo-Friedrich Model:A Finite Difference Approach

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 2020年第12期65卷 1959-1973页

作者： muhammad saqib Hanifa Hanif T.Abdeljawad Ilyas Khan Sharidan Shafie Kottakkaran Sooppy Nisar Department of Mathematical Sciences Faculty of ScienceUniversiti Teknologi MalaysiaJohor Bahru81310Malaysia Department of Mathematics Sardar Bahadur Khan Women’s UniversityQuettaPakistan Department of Mathematics and General Sciences Prince Sultan UniversityRiyadh11586Saudi Arabia Department of Medical Research China Medical UniversityTaichung40402Taiwan Department of Computer Science and Information Engineering Asia UniversityTaichung40402Taiwan Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh CityVietnam Department of Mathematics College of Arts and SciencesPrince Sattam bin Abdulaziz UniversityWadi Aldawaser11991Saudi Arabia

The idea of fractional derivatives is applied to several problems of viscoelastic ***,most of these problems(fluid problems),were studied analytically using different integral transform techniques,as most of these problems are *** idea of the above fractional derivatives is rarely applied to fluid problems governed by nonlinear partial differential *** importantly,in the nonlinear problems,either the fractional models are developed by artificial replacement of the classical derivatives with fractional derivatives or simple classical problems(without developing the fractional model even using artificial replacement)are *** problems were mostly solved for steady-state fluid *** the present article,studied unsteady nonlinear non-Newtonian fluid problem(Cattaneo-Friedrich Maxwell(CFM)model)and the fractional model are developed starting from the fractional constitutive equations to the fractional governing equations;in other words,the artificial replacement of the classical derivatives with fractional derivatives is not done,but in details,the fractional problem is modeled from the fractional constitutive *** exactly two-dimensional magnetic resistive flow in a porous medium of fractional Maxwell fluid(FMF)over an inclined plate with variable velocity and the temperature is *** Caputo time-fractional derivative model(CFM)is used in the governing *** proposed model is numerically solved via finite difference method(FDM)along with L1-scheme for *** numerical results are presented in various *** results indicated that the fractional parameters significantly affect the temperature and velocity *** is noticed that the temperature field increased with an increase in the fractional ***,the effect of fractional parameters is opposite on the velocity field near the ***,this trend became like that of the temperature profile,away from the ***,

关键词： Viscoelastic fluid Cattaneo-Friedrich Maxwell model variable heating magnetohydrodynamic(MHD) porous medium fractional derivatives

Analysis of Magnetic Resistive Flow of Generalized Brinkman Type Nanofluid Containing Carbon Nanotubes with Ramped Heating

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 2021年第4期67卷 1069-1084页

作者： muhammad saqib Ilyas Khan Sharidan Shafie Ahmad Qushairi Mohamad El-Sayed M.Sherif Department of Mathematical Sciences Faculty of ScienceUniversiti Teknologi MalaysiaJohor Bahru81310Malaysia Faculty of Mathematics and Statistics Ton Duc Thang UniversityHo Chi Minh CityVietnam Center of Excellence for Research in Engineering Materials(CEREM) King Saud UniversityAl-Riyadh11421Saudi Arabia Department of Physical Chemistry Electrochemistry and Corrosion LaboratoryNational Research CentreCairo12622Egypt

In recent times,scientists and engineers have been most attracted to electrically conducted nanofluids due to their numerous applications in various fields of science and *** example,they are used in cancer treatment(hyperthermia),magnetic resonance imaging(MRI),drugdelivery,and magnetic refrigeration(MR).Bearing in mind the significance and importance of electrically conducted nanofluids,this article aims to study an electrically conducted water-based nanofluid containing carbon nanotubes(CNTs).CNTs are of two types,single-wall carbon nanotubes(SWCNTs)and multiple-wall carbon nanotubes(MWCNTs).The CNTs(SWCNTs and MWCNTs)have been dispersed in regular water as base fluid to form waterCNTs *** Brinkman Type nanofluid model is developed in terms of time-fractional *** ramped heating and sinusoidal oscillations conditions have been taken at the *** model has been solved for exact analytical solutions via the fractional Laplace transform *** exact solutions have been graphically studied to explore the physics of various pertinent flow parameters on velocity and temperature *** empirical results reveal that the temperature and velocity fields decreased with increasing values of fractional parameters due to variation in thermal and momentum boundary *** is also indicated that the isothermal velocity and temperature are higher than ramped velocity and temperature.

关键词： Nanofluid fractional derivatives Brinkman type fluid exact solutions

Evaluation of antileishmanial,antibacterial and brine shrimp cytotoxic potential of crude methanolic extract of Herb Ocimum basilicum(Lamiacea)

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 Traditional Chinese Medicine 2015年第3期35卷 316-322页

作者： Imran Khan Kafeel Ahmad Ali Talha Khalil Jangrez Khan Yusra Ali Khan muhammad Shahab saqib muhammad Naveed Umar Hilal Ahmad Department of Biotechnology Quaid-i-Azam University Centre of Biotechnology and Microbiology University of Peshawar Department of Biochemistry Quaid-i-Azam University Islamabad Department of Chemistry University of Malakand Institute of Biotechnology and Genetic Engineering Agriculture UniversityPeshawar

OBJECTIVE:To collect and screen for ethnopharmacological properties(antileishmanial,antibacterial and brine lethality assays) of medicinal plant Ocimum basilicum from Peshawar region(34.008 latitude and 71.57 altitudes).METHODS:In the present study a general antileishmanial activity against Leishmania tropica strain was carried *** antibacterial potential of the plant was performed against 06 gram positive and 06 gram negative *** shrimp cytotoxicity assay at different concentrations were ***:The anti-promastigotes profile of the plant showed good antileishmanial activity exhibited LC_(50) value 21.67 μg/*** result for gram positive antibacterial activity revealed that the *** leaves extract possesses significant inhibitory activity at highest two concentrations ranging from20.66 ± 0.31 to 31.86 ± 0.80 for Clostridium perfringens type C and Bacillus subtitilis,respectively,as compared to the gentamycin(27.36 ± 0.55 and21.80 ± 0.72,respectively).For gram negative bacteria good activity was observed.A highest zone of inhibition was recorded for Pseudomonas aeroginosa(28.83 ± 0.28) atthe highest concentration(10 mg/mL).The LC_(50) value obtained for brine shrimp lethality assay was 91.56 μg/***:The herb basil possesses effective cidal activities which make this plant a good candidate for the isolation of antiprotozoal and antibacterial compounds which may lead to the development of novel drug.

关键词： Ocimum basilicum Cytotoxicity tests,immunologic Anti-bacterial agents Antileishmanial activity

Distribution and leaching characteristics of trace elements in ashes as a function of different waste fuels and incineration technologies

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

Journal of Environmental Sciences 2015年第10期27卷 9-21页

作者： Naeem saqib Mattias Backstrom Department of Science and Technology Man-Technology-Environment Research Centreorebro University

Impact of waste fuels（virgin/waste wood, mixed biofuel（peat, bark, wood chips） industrial,household, mixed waste fuel） and incineration technologies on partitioning and leaching behavior of trace elements has been investigated. Study included 4 grate fired and 9 fluidized boilers. Results showed that mixed waste incineration mostly caused increased transfer of trace elements to fly ash; particularly Pb/Zn. Waste wood incineration showed higher transfer of Cr,As and Zn to fly ash as compared to virgin wood. The possible reasons could be high input of trace element in waste fuel/change in volatilization behavior due to addition of certain waste fractions. The concentration of Cd and Zn increased in fly ash with incineration *** concentration in ashes decreased in order of Zn 〉 Cu 〉 Pb 〉 Cr 〉 Sb 〉 As 〉 Mo. The concentration levels of trace elements were mostly higher in fluidized boilers fly ashes as compared to grate boilers（especially for biofuel incineration）. It might be attributed to high combustion efficiency due to pre-treatment of waste in fluidized boilers. Leaching results indicated that water soluble forms of elements in ashes were low with few *** levels in ash and ash matrix properties（association of elements on ash particles）are crucial parameters affecting leaching. Leached amounts of Pb, Zn and Cr in 〉50% of fly ashes exceeded regulatory limit for disposal. 87% of chlorine in fly ashes washed out with water at the liquid to solid ratio 10 indicating excessive presence of alkali metal chlorides/alkaline earths.

关键词： Incineration residues Leaching behavior Biofuel incineration Metal distribution Waste incineration

Comprehensive genetic screening reveals wide spectrum of genetic variants in monogenic forms of diabetes among Pakistani population

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

World Journal of Diabetes 2021年第11期12卷 1957-1966页

作者： Ibrar Rafique Asif Mir Shajee Siddiqui muhammad Arif Nadeem saqib Asher Fawwad Luc Marchand muhammad Adnan muhammad Naeem Abdul Basit Constantin Polychronakos Department of Biological Sciences International Islamic UniversityIslamabad 44000Pakistan Departments of Pediatrics and Human Genetics McGill University Health Centre Research InstituteMontreal H4A 3J1Canada Research Development and Coordination Pakistan Health Research CouncilIslamabad 44000Pakistan Department of Medicine Pakistan Institute of Medical SciencesIslamabad 44000PakistanPakistan Department of Medical Laboratory Technology National Skills UniversityIslamabad44000Pakistan Department of Biochemistry Baqai Institute of Diabetology and EndocrinologyBaqai Medical UniversityKarachi 74600SindhPakistan PHRC Research Centre FJMUPakistan Health Research CouncilLahore 54000Pakistan Department of Biotechnology Quaid-I-Azam UniversityIslamabad 44000Pakistan Department of Medicine Baqai Institute of Diabetology and EndocrinologyBaqai Medical UniversityKarachi 74600SindhPakistan

BACKGROUND Monogenic forms of diabetes(MFD)are single gene *** diagnosis is challenging,and symptoms overlap with type 1 and type 2 *** To identify the genetic variants responsible for MFD in the Pakistani population and their *** A total of 184 patients suspected of having MFD were *** inclusion criterion was diabetes with onset below 25 years of *** demographic and clinical information were taken from the *** maturity-onset diabetes of the young(MODY)probability score was calculated,and glutamate decarboxylase ELISA was *** negative patients and features resembling MODY were selected(n=28)for exome sequencing to identify the pathogenic *** A total of eight missense novel or very low-frequency variants were identified in 7 *** variants were found in genes for MODY,***1A(c.169C>A,***57Met),KLF11(c.401G>C,***134Ala),and HNF1B(c.1058C>T,***353Leu).Five variants were found in genes other than the 14 known MODY genes,***6(c.919G>A,***307Lys),WFS1(c.478G>A,***160Lys)and WFS1(c.517G>A,***173Lys),RFX6(c.1212T>A,***404Gln)and ZBTB20(c.1049G>A,***350His).CONCLUSION The study showed wide spectrum of genetic variants potentially causing MFD in the Pakistani *** MODY genes prevalent in European population(GCK,HNF1A,and HNF4a)were not found to be common in our *** of novel variants will further help to understand the role of different genes causing the pathogenicity in MODY patient and their proper management and diagnosis.

关键词： MODY Diabetes Genetics Monogenic diabetes Monogenic forms of diabetes

Analysis of the Smart Player’s Impact on the Success of a Team Empowered with Machine LeAnalysis of the Smart Player’s Impact on the Success of a Team Empowered with Machine Learningarning

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 2021年第1期66卷 691-706页

作者： muhammad Adnan Khan Mubashar Habib Shazia saqib Tahir Alyas Khalid Masood Khan Mohammed A.Al Ghamdi Sultan H.Almotiri Lahore Garrison University Lahore54792Pakistan Computer Science Department Umm Al-Qura UniversityMakkah City715Saudi Arabia

The innovation and development in data science have an impact in all trades of *** commercialization of sport has encouraged players,coaches,and other concerns to use technology to be in better position than r their *** the past,the focus was on improved training techniques for better physical *** days,sports analytics identify the patterns in the performance and highlight strengths and weaknesses of potential *** analytics not only predict the performance of players in the near future but it also performs predictive modeling for a particular behavior of a player in the *** impact of a smart player on the success of a team is always a big question mark before the start of a *** fans always want to know performance analysis of these superstar players and they always are interested to get to know more about their favorite player and they always have high hopes from their favorite *** learning(ML)based techniques help in predicting the performance of an individual player as well as for the whole *** statistics are very vital and useful for management,fans,and expert *** our proposed framework,the adaptive back propagation neural network(ABPNN)model is used for the prediction of a player’s *** data is collected from football websites,and the results are stored in the cloud for fast fetching of *** can be retrieved anywhere in the world through cloud *** results are computed with 94%accuracy and the performance of the smart player is formulated for the success of a team.

关键词： Machine learning adaptive feed forwarded neural network adaptive back propagation neural network cloud computing fetching

TRUSED:A Trust-Based Security Evaluation Scheme for A Distributed Control System

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 2023年第2期74卷 4381-4398页

作者： saqib Ali Raja Waseem Anwar Sultan Qaboos University Muscat123Sultanate of OMAN Arab Open University Muscat130Sultanate of OMAN

Distributed control systems(DCS)have revolutionized the communication process and attracted more interest due to their pervasive computing nature(cyber/physical),their monitoring capabilities and the benefits they ***,due to distributed communication,flexible network topologies and lack of central control,the traditional security strategies are inadequate formeeting the unique characteristics ***,malicious and untrustworthy nodes pose a significant threat during the formation of a DCS ***-based secure systems not only monitor and track the behavior of the nodes but also enhance the security by identifying and isolating the malicious node,which reduces the risk and increases network *** this research,we offer TRUSED,a trust-based security evaluation scheme that both,directly and indirectly,estimates each node’s level of trustworthiness,incorporating the cumulative trust *** addition,simulation results show that the proposed technique can effectively identify malicious nodes,determine their node’s trustworthiness rating,and improve the packet delivery ratio.

关键词： Malicious network lifetime risk management security trust untrustworthy

Numerical Study of One Dimensional Fishers KPP Equation with Finite Difference Schemes

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

American Journal of Computational Mathematics 2017年第1期7卷 70-83页

作者： Shahid Hasnain muhammad saqib Department of Mathematics Numerical Analysis King Abdulaziz University Jeddah KSA

In this paper, we originate results with finite difference schemes to approximate the solution of the classical Fisher Kolmogorov Petrovsky Piscounov (KPP) equation from population dynamics. Fisher’s equation describes a balance between linear diffusion and nonlinear reaction. Numerical example illustrates the efficiency of the proposed schemes, also the Neumann stability analysis reveals that our schemes are indeed stable under certain choices of the model and numerical parameters. Numerical comparisons with analytical solution are also discussed. Numerical results show that Crank Nicolson and Richardson extrapolation are very efficient and reliably numerical schemes for solving one dimension fisher’s KPP equation.

关键词： Forward in Time and Centre in Space (FTCS) Lax Wendroff Taylor’s Series Crank Nicolson and Richardson Extrapolation