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Natural convection of CuO–water nanofluid filled in a partially heated corrugated cavity:KKL model approach

Communications in Theoretical Physics 2020年第8期72卷 27-42页

作者： rizwan Ul haq Muhammad Usman Ebrahem A Algehyne Department of Electrical Engineering Bahria UniversityIslamabadPakistan BIC-ESAT College of EngineeringPeking UniversityBeijing 100871China State Key Laboratory for Turbulence and Complex Systems Department of Mechanics and Engineering SciencePeking UniversityBeijing 100871China Department of Mathematics Faculty of SciencesUniversity of TabukP.O.Box 741Tabuk 71491Saudi Arabia

In this article, flow and heat transfer inside a corrugated cavity is analyzed for natural convection with a heated inner obstacle. Thermal performance is analyzed for Cu O–water inside a partially heated domain by defining the constraint along the boundaries. For nanofluid analysis, the Koo and Kleinstreuer Li(KKL) model is implemented to deal with the effective thermal conductivity and viscosity. A heated thin rod is placed inside the corrugated cavity and the bottom portion of the corrugated cavity is partially heated. The dimensionless form of nonlinear partial differential equations are obtained through the compatible transformation along with the boundary constraint. The finite element method is executed to acquire the numerical solution of the obtained dimensional system. Streamlines, isotherms and heat transfers are analyzed for the flow field and temperature distribution. The Nusselt number is calculated at the surface of the partially heated domain for various numerical values of emerging parameters by considering the inner obstacle at cold, adiabatic and heated conditions. The computational simulation was performed by introducing various numerical values of emerging parameters. Important and significant results have been attained for temperature and velocities(in both x-and y-directions) at the vertically and horizontally mean positions of the corrugated duct.

关键词： heat transfer nanofluid finite element method KKL corrugated cavity

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Radiation efects on MHD stagnation point flow of nano fluid towards a stretching surface with convective boundary condition

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Chinese Journal of Aeronautics 2013年第6期26卷 1389-1397页

作者： Noreen Sher Akbar S.Nadeem rizwan Ul haq Z.H.Khan DBS&H CEMENational University of Sciences and TechnologyIslamabad 44000Pakistan Department of Mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan School of Mathematical Sciences Peking University

The aim of the present paper is to study the numerical solutions of the steady MHD two dimensional stagnation point flow of an incompressible nano fluid towards a stretching *** effects of radiation and convective boundary condition are also taken into *** model used for the nanofluid incorporates the effects of Brownian motion and *** resulting nonlinear momentum,energy and nano particle equations are simplifed using similarity *** solutions have been obtained for the velocity,temperature and nanoparticle fraction *** influence of physical parameters on the velocity,temperature,nanoparticle fraction,rates of heat transfer and nanoparticle fraction are shown graphically.

关键词： Convective boundary condition Nanoparticles Numerical solutions Radiation effects Stagnation point Stretching surface

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Effects of homogeneous-heterogeneous reactions and thermal radiation on magneto-hydrodynamic Cu-water nanofluid flow over an expanding flat plate with non-uniform heat source

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Journal of Central South University 2019年第5期26卷 1161-1171页

作者： DOGONCHI A S CHAMKHA Ali J HASHEMI-TILEHNOEE M SEYYEDI S M rizwan-UL-haq GANJI D D Department of Mechanical Engineering Aliabad Katoul BranchIslamic Azad UniversityAliabad KatoulIran Mechanical Engineering Department Prince Sultan Endowment for Energy and EnvironmentPrince Mohammad Bin Fahd UniversityAl-Khobar 31952Saudi Arabia RAK Research and Innovation Center American University of Ras Al KhaimahP.O.Box 10021Ras Al KhaimahUnited Arab Emirates Department of Electrical Engineering Bahria UniversityIslamabadPakistan Mechanical Engineering Department Babol Noshirvani University of TechnologyBabolIran

This study presents the effect of non-uniform heat source on the magneto-hydrodynamic flow of nanofluid across an expanding plate with consideration of the homogeneous-heterogeneous reactions and thermal radiation effects.A nanofluid’s dynamic viscosity and effective thermal conductivity are specified with Corcione *** to this correlation,the thermal conductivity is carried out by the Brownian *** transformations reduce the governing equations concerned with energy,momentum,and concentration of nanofluid and then numerically *** influences of the effective parameters,e.g.,the internal heat source parameters,the volume fraction of nanofluid,the radiation parameter,the homogeneous reaction parameter,the magnetic parameter,the heterogeneous parameter and the Schmidt number are studied on the heat and flow transfer ***,regarding the effective parameters of the present work,the correlation for the Nusselt number has been *** outcomes illustrate that with the raising of the heterogeneous parameter and the homogeneous reaction parameter,the concentration profile *** addition,the outcomes point to a reverse relationship between the Nusselt number and the internal heat source parameters.

关键词： nanofluid non-uniform heat source homogeneous-heterogeneous reactions thermal radiation Brownian motion

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有机胂添加剂暴露胁迫对蚯蚓和剑尾鱼的分子生态毒性效应研究

有机胂添加剂暴露胁迫对蚯蚓和剑尾鱼的分子生态毒性效应研究

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中国毒理学会兽医毒理学与饲料毒理学学术讨论会暨兽医毒理专业委员会第4次全国代表大会会议

作者： Muhammad rizwan-ul-haq 熊文广孙永学曾振灵国家兽药安全评价(环境评估)实验室(华南农大) 华南农业大学兽医学院

【目的】有机胂添加剂在畜禽饲喂后经粪尿进入环境中的潜在生态危害已引起人们的关注。本文进行了土壤蚯蚓和水生生物剑尾鱼在其暴露胁迫效应下的生物标志物分子指标研究,以期为有机胂污染的早期分子诊断和风险评估提供依据。【方法】... 详细信息

【目的】有机胂添加剂在畜禽饲喂后经粪尿进入环境中的潜在生态危害已引起人们的关注。本文进行了土壤蚯蚓和水生生物剑尾鱼在其暴露胁迫效应下的生物标志物分子指标研究,以期为有机胂污染的早期分子诊断和风险评估提供依据。【方法】将赤子爱胜蚓暴露于洛克沙砷(15,75,150mgAs/kg)和阿散酸(30,150,300 mg As/kg)土壤中分别于第5、10、15天采样;剑尾鱼暴露于洛克沙砷和阿散酸(12.5,2.5,0.5mgAs/L)的水环境中分别于第2、5和7天采样,进行了抗氧化酶系统(SOD、CAT、GSH-Px、GST)靶标酶活性检测;采用实时荧光定量PCR研究了GST和HSP70基因mRNA的相对表达量分析;通过RACE-PCR法克隆赤子爱胜蚓GST和HSP70基因和剑尾鱼GST基因的全长序列,并运用生物信息学分析其结构、功能和对应的蛋白质序列。【结果】(1)经洛克沙胂和阿散酸胁迫后赤子爱胜蚓SOD、CAT、GSH-Px活性均呈现先升高至第10天后出现下降变化趋势,GST活性在较高浓度下暴露初期即表现明显升高。剑尾鱼GST在阿散酸处理下出现显著抑制,GSH-Px活性在两种药物处理下呈现先抑制后增长变化,剑尾鱼SOD、CAT活性与蚯蚓变化相似。(2)成功克隆出赤子爱胜蚓GST和HSP70基因的全长序列和剑尾鱼的GST全长序列。赤子爱胜蚓GST cDNA序列全长984bp,包括一个编码206个氨基酸的621bp的ORF:HSP70 cDNA序列全长2481 bp,包括一个编码655个氨基酸的1968 bp ORF;剑尾鱼GST cDNA序列全长978 bp,包括一个编码223个氨基酸的673 bp的ORF。(3)赤子爱胜蚓经洛克沙砷处理后Hsp70与GST基因表达量均表现持续增加;阿散酸处理初期Hsp70表达量处于抑制状态,后随暴露时间延长表达量增加。剑尾鱼在较高浓度洛克沙砷处理下Hsp70的表达量出现先增加后下降,而阿散酸处理的Hsp70表达量均随着浓度和暴露时间的增加而增加,在洛克沙胂和阿散酸处理下GST基因表达量在第2天即出现显著抑制。【结论】本文从分子水平初步探讨了洛克沙砷和阿散酸对土壤蚯蚓和水生生物剑尾鱼的生态毒理效应,为有机胂的环境风险评估提供理论数据。首次克隆出的赤子爱胜蚓GST和HSP70基因全长序列和剑尾鱼GST全长序列,为下一步生态毒理研究的生物标志物筛选提供了基础。

关键词：有机胂添加剂蚯蚓剑尾鱼抗氧化酶系统基因表达量

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Efficacy and Safety of Tinefcon^® Tablets in Subjects with Plaque Psoriasis: An Open Label, Non-Comparative, Multicenter, Phase IV Trial

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Journal of Cosmetics, Dermatological Sciences and Applications 2016年第2期6卷 55-66页

作者： Somesh Sharma Kailash Bhatia Meetesh Agarwal Sandesh Gupta Leelavathi Budamakuntla Sudhakar Grandhi Vinod Titarmare Sushil Pande Ranjan Rawal Aruna Samarth rizwan haq Vikrant Saoji D. V. S. Pratap L. M. Kansal D. G. Saple Shatrughan Sahay Parag Kalyani Puneet Goyal Sharmila Patil A. J. Kanwar Bhavesh Swarnakar Sujay Kulkarni Abhijeet Morde Hitesh Khandagale Yogesh Dound Nitin Jadhav Sanjeev Hegde Murlidhara Padigaru Ashish C. Suthar Piramal Enterprises Limited Mumbai India Bhatia Skin Center Bima Nagar Indore India Agrawal Path LAB Vijaynagar Indore India Skin & Laser Center Krishna Nagar New Delhi India Diabetes and Shirdi Skin Care Centre Karnataka India Medipoint Hospitals Pvt. Ltd. Pentagon Research Pvt. Ltd. Pune India Skin Care Clinic Nagpur India NKP Salve Institute and Lata Mangeshkar Hospital Nagpur India Department of Dermatology Sheth VS General Hospital Ahmedabad India Sai Skin Care Clinic Hyderabad India Radiance Skin Care Clinic Nagpur India Dr. Vikrant Saoji’s Clinic Ramdaspeth Nagpur India Durgabai Deshmukh Hospital & Research Center Hyderabad India Kansal Cosmetic & Skin Care Clinic Jaipur India Dr. Saple’s Clinic Dadar (East) Mumbai India Sri Skin Care & Laser Clinic Lucknow UP India Ruby Hall Clinic Pune India Renova Skin & Laser Clinic Sector-9 Mansarovar Jaipur India Dr. D. Y. Patil Medical College and Hospital Nerul Navi Mumbai India Department of Dermatology Venerology & Leprology Postgraduate Institute of Medical Education and Research Chandigarh India Swarnakar Superspeciality Centre Indore India Clinical Research and Development Piramal Enterprises Limited Mumbai India

Importance: This post-marketing surveillance study was conducted to evaluate real-world information about the efficacy and safety of oral Tinefcon? tablets (Sphaeranthus indicus based) in plaque psoriasis patients. Materials and Methods: Patients aged at least 18 years and older with clinical diagnosis of plaque psoriasis, were enrolled in this open label, non-comparative, multicenter trial. All eligible subjects received four 700 mg Tinefcon? tablets/day for 12 weeks. The primary outcome measure was percent change in Psoriasis Area Severity Index (PASI) score from baseline to week 12. The secondary outcome measures were Physician Global Assessment (PGA), Nail Psoriasis Severity Index (NAPSI), Psoriatic Arthritis Evaluation and Gene Expression Profiling and Immunohistochemistry. Results: After completion of Tinefcon? treatment at 12 weeks, more than half of subjects (52%) achieved PASI 50 response;PASI 75 response was attained in 68 (23%) subjects and PASI 90 response in 22 (7%) subjects. Five subjects with severe psoriasis achieved PASI 90 without receiving any concomitant medication. Reduction in severity as assessed by PGA was observed in more than half of patients with moderate disease. Histopathological evaluation revealed that epidermal thickness was considerably reduced in 66% of subjects. The expression of inflammatory marker S100A9 protein was(meaningfully reduced in 60% patients with non-significant reduction of Keratin 10 protein expression. Gene expression analysis showed increase down regulation of SERPINB4;PI3 and KRT16 genes after a 12-week treatment period in subjects with higher PASI scores. Conclusion: Oral Tinefcon? tablets showed good efficacy and had a favorable safety profile in plaque psoriasis patients.

关键词： Psoriasis Tinefcon® Tablet Sphaeranthus indicus

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Atypical focal nodular hyperplasia of the liver

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Hepatobiliary & Pancreatic Diseases International 2011年第1期10卷 104-106页

作者： Muhammad rizwan Khan Taimur Saleem Tanveer Ul haq Kanwal Aftab Section of General Surgery Department of Surgery Aga Khan UniversityStadium Road Department of Pathology Aga Khan UniversityStadium Road Section of Interventional Radiology Department of RadiologyAga Khan UniversityStadium Road Aga Khan University Hospital Medical College Aga Khan UniversityStadium Road

BACKGROUND:Focal nodular hyperplasia,a benign hepatic tumor,is usually ***,rarely the entity can cause symptoms,mandating intervention. METHOD:We present a case of focal nodular hyperplasia of the liver,which caused a considerable diagnostic dilemma due to its atypical presentation. RESULTS:A 29-year-old woman presented with a 15-year history of a progressively increasing mass in the right upper quadrant which was associated with pain and emesis. Examination showed a firm,mobile mass palpable below the right subcostal margin.A computed tomography scan of the abdomen showed an exophytic mass arising from hepatic segments III and *** biopsy of the hepatic mass was *** showed a vascular tumor that was supplied by a tortuous branch of the proper hepatic artery. Surgical intervention for removal of the mass was undertaken. Intra-operatively,two large discrete tumors were found and completely *** examination showed features consistent with focal nodular hyperplasia. CONCLUSION:This description of an unusual case of focal nodular hyperplasia of the liver highlights the point that the diagnosis of otherwise benign hepatic tumors may be difficult despite extensive work-up in some cases.

关键词： focal nodular hyperplasia atypical liver

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茶叶皂苷复合抑霉唑和咪酰胺处理对采后柑橘属果实绿霉、青霉及酸腐病的控制作用

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保鲜与加工 2011年第4期 56-56页

作者： Weining Hao Guohua Zhong Meiying Hu Jianjun Luo Qunfang Weng Muhammad rizwan-ul-haq Key Laboratory of Natural Pesticide and Chemical Biology(Ministry of Education) South China Agricultural University

茶叶皂苷(TS)一般认为是一种安全的化合物,TS能够抑制柑橘青霉(Penicillium italicum)、指状青霉(***)和白地霉(Geotrichum candidum)的孢子萌发与菌丝生长,用来控制柑橘属果实采后的腐烂。本文研究了TS单独使用及与抑霉唑和咪酰胺结合... 详细信息

茶叶皂苷(TS)一般认为是一种安全的化合物,TS能够抑制柑橘青霉(Penicillium italicum)、指状青霉(***)和白地霉(Geotrichum candidum)的孢子萌发与菌丝生长,用来控制柑橘属果实采后的腐烂。本文研究了TS单独使用及与抑霉唑和咪酰胺结合使用对柑橘青霉、指状青霉和白地霉的孢子萌发与菌丝生长的影响。结果表明,TS与抑霉唑或咪酰胺结合使用控制柑橘青霉、指状青霉和白地霉生长的最佳配比为8∶2。在此配比下,TS与这些杀菌剂可以很好地融合,可延长TS在果实上的存留时间,并提高它们对已接种病原菌"沙糖橘"的青霉、绿霉及酸腐病的控制效果。TS与这几种杀菌剂复合使用对病害的控制效果要好于这几种杀菌剂的单独使用,TS单独使用或与较低比例的抑霉唑或咪酰胺结合使用能够在不损害果实其他品质性状的情况下显著降低"沙糖橘"果实采后的腐烂率。

关键词：茶叶皂苷柑橘属果实采后病害协同效应白地霉

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Appearance Based Dynamic Hand Gesture Recognition Using 3D Separable Convolutional Neural Network

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Computers, Materials & Continua 2023年第7期76卷 1213-1247页

作者： Muhammad rizwan Sana Ul haq Noor Gul Muhammad Asif Syed Muslim Shah Tariqullah Jan Naveed Ahmad Department of Electronics University of PeshawarPeshawar25120Pakistan Department of Electronics Engineering Korea Polytechnic UniversitySiheungKorea Department of Electrical Engineering Capital University of Science and TechnologyIslamabad44000Pakistan Department of Electrical Engineering University of Engineering and TechnologyPeshawar25120Pakistan Department of Computer Science Prince Sultan UniversityRiyadh11586Saudi Arabia

Appearance-based dynamic Hand Gesture Recognition(HGR)remains a prominent area of research in Human-Computer Interaction(HCI).Numerous environmental and computational constraints limit its real-time *** addition,the performance of a model decreases as the subject’s distance from the camera *** study proposes a 3D separable Convolutional Neural Network(CNN),considering the model’s computa-tional complexity and recognition *** 20BN-Jester dataset was used to train the model for six gesture *** achieving the best offline recognition accuracy of 94.39%,the model was deployed in real-time while considering the subject’s attention,the instant of performing a gesture,and the subject’s distance from the *** being discussed in numerous research articles,the distance factor remains unresolved in real-time deployment,which leads to degraded recognition *** the proposed approach,the distance calculation substantially improves the classification performance by reducing the impact of the subject’s distance from the ***,the capability of feature extraction,degree of relevance,and statistical significance of the proposed model against other state-of-the-art models were validated using t-distributed Stochastic Neighbor Embedding(t-SNE),Mathew’s Correlation Coefficient(MCC),and the McNemar test,*** observed that the proposed model exhibits state-of-the-art outcomes and a comparatively high significance level.

关键词： 3D separable CNN computational complexity hand gesture recognition human-computer interaction

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Asymptomatic dengue infection in adults of major cities of Pakistan

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Asian Pacific Journal of Tropical Medicine 2017年第10期10卷 1002-1006页

作者： Ibrar Rafique Muhammad Arif Nadeem Saqib Muhammad Arif Munir Huma Qureshi Ijaz-ul-haq Taseer rizwan Iqbal Waqaruddin Ahmed Tasleem Akhtar rizwanullah Pakistan Health Research Council Head OfficeIslamabadPakistan Pakistan Health Research Council Research CentreNishtar Medical CollegeMultanPakistan Pakistan Health Research Council Research CentreKing Edward Medical UniversityLahorePakistan Pakistan Health Research Council Research CentreJinnah Postgraduate Medical CentreKarachiPakistan Pakistan Health Research Council Research CentreKhyber Medical CollegePeshawarPakistan

Objective: To determine the asymptomatic dengue infection in adults of Pakistani ***: This study was conducted in five major cities(Islamabad, Karachi, Lahore,Multan, and Peshawar) of Pakistan.A total of 5 230 adults aged 18 years and above without a history of dengue fever at any point in their life were enrolled from participating *** who were confirmed for dengue previously were *** the total, 62.6%(n = 3 276) were male with an average age of 34.6 *** were briefed about the objectives of the study, and written consent was obtained to perform dengue Ig G test using enzyme linked immunosorbent *** brief information related to age, gender and area was also taken on ***: Overall 32.3%(n = 1 691) was having asymptomatic dengue infection which was 67.5%(n = 756) in Karachi followed by 39.1%(n = 391) in Islamabad, 29.9%(n =316) in Lahore and 21%(n = 228) in Peshawar and none from *** males were affected with asymptomatic dengue infection than *** asymptomatic dengue infection was significantly higher in different cities; however, there was no significant difference with respect to age ***: The asymptomatic dengue infection is higher in cities ***,Islamabad and Lahore which are at risk of developing secondary dengue *** is a need of awareness among the public about secondary dengue infection.

关键词： Dengue Exposure Secondary dengue infection Asymptomatic

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