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43篇 您的检索式:作者名="Mohammad MA"
    题名 作者 年代 出处 被引量
1Accelerated design and characterization of non-uniform cellular materials via a machine-learning based framework显示文摘Cellular materials,widely found in engineered and nature systems,are highly dependent on their geometric arrangement.A nonuniform arrangement could lead to a significant variation of mechanical properties while bringing challenges in material design.Here,this proof-of-concept study demonstrates a machine-learning based framework with the capability of accelerated characterization and pattern generation.Results showed that the proposed framework is capable of predicting the mechanical response curve of any given geometric pattern within the design domain under appropriate neural network architecture and parameters.Additionally,the framework is capable of generating matching geometric patterns for a targeted response through a databank constructed from our machine learning model.The accuracy of the predictions was verified with finite element simulations and the sources of errors were identified.Overall,our machine-learning based framework can boost the design efficiency of cellular materials at unit level,and open new avenues for the programmability of function at system level.Chunping Ma Zhiwei Zhang Benjamin Luce Simon Pusateri Binglin Xie Mohammad H.Rafiei Nan Hu 2020npj Computational Materials2020,,1:3
2Monte-Carlo simulation to determine detector efficiency of plastic scintillating fiber显示文摘Fundamental characteristics of the plastic scintillating fiber (PSF) as a detector for electromagnetic radiation (X & γ) are obtained by GEANT4 detector simulation tool package. The detector response to radiation with energy of 10~400 keV is found out. Energy deposition as well as detector efficiency (DE) of the PSF are studied. In order to make linear array of the PSF for imaging purpose, the optimum length of fiber is also estimated.Mohammad Mehdi NASSERI*, MA Qing-Li, YIN Ze-Jie, WU Xiao-Yi (Department of Modern Physics, University of Science and Technology of China, Hefei 230026) 2004Nuclear Science and Techniques2004,15,5:3
3Impact of scientific and technological innovation policies on innovation efficiency of high-technology industrial parks-A dual analysis with linear regression and QCA显示文摘Scientific and technological innovation policies play a critical role in the innovative development of high-technology industrial parks.However,it remains unclear how scientific and technological innovation policies impact the innovation efficiency of hightechnology industrial parks and what the impact pathways are.An in-depth investigation of this topic can give an insight into the inherent relation between the scientific and technological innovation policies and technological innovation.By conducting a theoretical analysis,this study empirically analyzed the impact of scientific and technological innovation policies on the innovation efficiency of high-technology industrial parks.The main research methods applied in this study were linear regression and qualitative comparative analysis(QCA).The results showed that the policy targets drove innovation efficiency in a relatively minor way.Among all policy tools,the demand-based policy tools had the most significant influence on innovation efficiency.The supply-based and environment-based policy tools had notable positive impacts during the lag periods of policies.The policy mix pathways for scientific and technological innovation policies that impact innovation efficiency come in four forms,namely,the targets-directed,demand-driven,supplydominated environment optimization,and environment-dominated comprehensive pathways.Therefore,this study put forward proposals on classifying and refining the scientific and technological innovation policies and optimizing the policy mix-driven models.Jinglei Wang Xiao Ma Yixuan Zhao Jing Zhao Mohammad Heydari 2022International Journal of Innovation Studies2022,6,3:2
4Detection of risky esophageal varices by two dimensional ultrasound: when to perform endos- copy显示文摘Abd Elrazek MA Mohammad Ali Ael R Mahfouz H 2014Am J Med Sci2014,347,1:1
5Clinical relevance of cyclooxygenase-2 and matrix metalloproteinases (MMP-2 and MT1-MMP) in human breast cancer tissue显示文摘Mohammad MA Zeeneldin AA Abd Elmageed ZY 2012Mol Cell Biochem2012,366,12:1
6Prog- nostic value of membrane type 1 and 2 matrix metalloproteinase expression and gelatinase A activity in bladder cancer显示文摘MOHAMMAD MA ISMAEL NR SHAARAWY SM 2010Int J Biol Markers2010,25,2:1
7Cost-effectiveness of intensive exercise therapy directly following hospital discharge in patients with arthritis,results of a randomized controlled clinical trial显示文摘Bulthuis Y Mohammad S Braakman-Jansen LM Drossaers-Bakker KW van de Laar MA 0,,02:1
8Clinical relevance of cyclooxygenase-2 and matrix metalloproteinases(MMP-2 and MT1-MMP)in human breast cancer tissue显示文摘Mohammad MA Zeeneldin AA Abd Elmageed ZY 2012Mol Cell Biochem2012,366,12:1
9Serum levels of sex hormones in men with acute myocardial infarction显示文摘Mohamad MJ Mohammad MA Karayyem M 2007Neuro Endocrinol Lett2007,28,2:1
10Characterization and Distribution of Virulence Factors in Aeromoans hydrophila Strains Isolated from Fecal Sampies of Dian:heal and Asymptomatic Healthy Persons, in Ilam, Iran 显示文摘Mohammad MA Hassan SH 2004Iranian Biomedical Jonurnal2004,8,4:1
11Utilization of molten chloride salt derived from MSWI fly ash washing as energy storage material:thermophysical properties and corrosion behavior显示文摘Fly ash,as a byproduct of municipal solid waste incineration,contains several kinds of pollutants,especially dissolvable salts that cause a severe challenge for fly ash disposal.Washing combined with cement kiln co-processing for fly ash disposal has been applied in China.After washing,the wastewater was evaporated to produce fly ash salt(FAS).In this study,FAS was mixed the KCl and LiCl to be used as molten chloride salt for energy storage material.Twenty-three types of molten salts with various ratios of FAS-KCl-LiCl were evaluated.Thermophysical properties(melting point and latent heat)and thermal stability of these salts were characterized.The increase in FAS fraction decreased the latent heat of molten salts.Among the tested samples,the best compatibility ratio of FAS:KCl:LiCl was 10:50:40(%,in weight),with latent heat of 108.7 J/g and melting point of 333℃.This molten salt also showed good thermal stability after 1–13 h of thermal experiments,and the mass loss was less than 2%after 5 heating cycles at 600℃.By corrosion test,FAS-KCl-LiCl(10:50:40,%in weight)could be more safely used in vessels made of nickel-based alloy,but it might cause corrosion risk for stainless steel.Mi Yan Yayong Yang Jiahao Jiang Rendong Zheng Yi Ma Mohammad Khalid Haryo Wibowo 2022Waste Disposal and Sustainable Energy2022,4,3:1
12A Framework for Meas- uring Quality in Enginneering Education显示文摘MOHAMMAD SO ELAINE MA 1998Total Quality Maragement & Businesss Excellence1998,,6:1
13Use of specific acupuncture techniques in lingering nummular eczema:A case report显示文摘Background:Nummular eczema(NE)is an inflammatory skin disease characterized by pruritic coinshaped lesions and a long-lasting and easy-relapsing course,which severely decreases patients’quality of life.This case was designed to observe the effects of specific acupuncture techniques on pruritic NE management.Case presentation:A 22-year-old female was first diagnosed with pruritic NE three years earlier.No allergies were found in the patch test;while emotional stress would trigger and aggravate the NE.External application of 0.1%tacrolimus failed to reverse this condition over a long period of treatment.Treatment&outcomes:An individualized acupuncture treatment protocol was identified.Half needling and encircling needling were applied at local eczematous lesions,with routine needling at meridian points,once per week,for 12 treatment sessions.All outcome measures,including the Eczema Area and Severity Index,Visual Analogue Scale score for pruritus,Self-Rating Anxiety Score,and Dermatology Quality Life Index,substantially improved over 6 months from pre-treatment to 3 months posttreatment.Conclusion:Acupuncture might be a promising non-pharmacological treatment method for patients with NE,especially for those with emotional stress.A randomized controlled trial with an adequate sample size and rigorous study design is required to verify the results of the study.Junxiang Wang Liangxiao Ma Mohammad Reza Afshari Fard Ali Mohammadi 2021Journal of Traditional Chinese Medical Sciences2021,8,2:1
14Revascularisation later than 24 h after poplitealartery trauma:Is it worthwhile显示文摘Majid M Takyar MA Mohammad R 0,,09:1
15Burden of congenital inguinal hernia and hydrocele in northern and southern Nigeria:An opportunity for awareness creation 显示文摘Ibrahim M Getso KI Mohammad MA 2004Afr J Paediatr Surg2004,11,4:1
16Thyroid cervico-thoracic teratoma in a 14-month old child显示文摘Mohammad MA 2010Afr J Paediatr Surg2010,7,2:1
17Clinical relevance of cyclooxyge- nase-2 and matrix metalloproteinases( MMP-2 and MT1-MMP) in human breast cancer tissue显示文摘Mohammad MA Zeeneldin AA 2012Mol Cell Biochem2012,336,12:1
18Serum levels of sex hormones in men with acute myocardial infarction显示文摘Mohamad M J Mohammad MA Karayyem M 2007Neuro Endocrinol Lett2007,28,2:1
19Implementation of web database for ECG显示文摘Paracha MA Mohammad SN Macfarlane PW 2005Computer in Cardiology2005,30,:1
20Vedolizumab: an alpha4beta7 integrin inhibitor for inflammatory bowel diseases显示文摘Smith MA Mohammad RA 2014Ann Pharmacother2014,48,12:1
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