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Journal of Integrative medicine 2016年第1期14卷 22-28页

作者： Reshma m. Ansari Department of Basic medical Sciences Cyberjaya University College of Medical Sciences Cyberjaya 63000 Selangor Malaysia

Infertility due to polycystic ovarian syndrome （PCOS） is a worldwide problem that is increasing at alarming rates. Insulin resistance, the prime factor of PCOS, induces comorbid metabolic syndrome as well. Durian （Durio zibenthinus Linn）, a fruit of Southeast Asia, is used as a natural supplement in healthy diets. This paper is a short literature review that examines the fruit＇s effects against various components of metabolic syndrome and its fertility-enhancing properties in PCOS. Various published literature was reviewed to learn of the anti-inflammatory, anti-oxidant, anti-obesity, anticholesterol, and antihypoglycaemic nature of the fruit. The literature search was done using Pubmed, Google Scholar and library databases. The keywords used were polycystic ovarian syndrome, infertility, metabolic syndrome and Durian zibenthinus Linn. Reviewed studies showed that the fruit is effective against various components of metabolic syndrome, but the mechanisms of action against anovulation and menstrual disturbances in PCOS have yet to be studied. The traditional use of durian as a fertility-enhancing agent needs to be validated scientifically by isolating its various components and ascertaining its fertility enhancing properties.

关键词： Durian zibenthius Linn polycystic ovarian syndrome infertility metabolic syndrome

multi-layered plate finite element models with node-dependent kinematics for smart structures with piezoelectric components

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Chinese Journal of Aeronautics 2021年第8期34卷 164-175页

作者： Guohong LI Erasmo CARRERA Yuliang HOU Gennady m.KULIKOV mUL2 Group Department of Mechanical and Aerospace EngineeringPolitecnico di TorinoTorino 10129Italy Laboratory of Intelligent materials and Structures Tambov State Technical UniversityTambov 392000Russia School of mechanical and Power Engineering Zhengzhou UniversityZhangzhou 450001China

This article presents a type of plate Finite Element(FE)models with adaptive mathematical refinement capabilities for modeling laminated smart structures with piezoelectric layers or distributed *** p-version shape functions are used in combination with the higher-order Layer-Wise(LW)kinematics adopting hierarchical Legendre ***-Dependent Kinematics(NDK)is employed to implement local LW models in the regions with piezoelectric components and simulate the global substrate structure with the Equivalent Single-Layer(ESL)*** the proposed NDK FE models,the electro-mechanical behavior of smart structures can be predicted with high fidelity and numerical efficiency,and various patch configurations can be conveniently modeled through one set of mesh ***,the effectiveness and efficiency of the NDK FE approach are assessed through numerical examples and its application is demonstrated.

关键词： Finite element Laminated composites Piezoelectric Refined plate theory Smart structures

A Study of Linke Turbidity Factor over Qena / Egypt

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Advances in Atmospheric Sciences 1996年第4期13卷 519-532页

作者： Sayed m. Elshazly Department of Physics Faculty of Science South Valley University Qena/A.R. Egypt

Data on instantaneous atmospheric Linke turbidity factor TL (m) are reported for clear days at Qena/Egypt in the period from June 1992 to may ***(m) is determined using the values of irradiance of direct solar radiation (I),which are calculated from global (G) and diffuse (D) - solar radiation *** and seasonally variations of both diurnal and daily average values of TL (m) increases steadily in the direction of sunset in the months from June to December 1992 as well as Summer and Autumn seasons,while it falls generally in this direction for the months from January to march and Winter *** April and may,TL (m) fluctuates obviously through the day hours,it is also shown that the average values of TL(m) are particularly large during Summer months compared to other months of the *** behavior of TL(m) is discussed in view of the variations of some weather elements,which affect the content of water vapor and dust particle in the atmosphere of the study *** seems t be of similar trends to that of other locations inside and outside *** virtual variation of TL(m) is eliminated by reducing its value to relative optical air mass m=2,according to Kasten *** resulting TL (2) is more representative for the content of dust particles and water vapor in the atmosphere.

关键词： Turbidity Linke turbidity factor Seasonal and diurnal variations Solar radiations components measurements Aerosol

Evaluation of the wind energy potential of two south west sites in Nigeria

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Frontiers in Energy 2012年第3期6卷 237-246页

作者： Olaleye m.AmOO Aeromechanics-Fan Blades Cold Section Engineering(CSE)United Technologies Corporation(UTC)-Pratt&WhimeyEast HartfordCT06108USA

Wind resource assessment is a crucial first step in gauging the potential of a site to produce energy from wind turbines. In this paper, the wind energy potential of Abeokuta （07°03＇N, 03°19＇E） and Ijebu-Ode （06°47＇N, 03°58＇E）, two south west sites in Nigeria were examined. Twenty years （1990-2010） of monthly mean wind data from a 10m height were subjected to two-parameter Weibull analysis and other statistical analyses. The results show that the average annual mean wind speed variation for Abeokuta ranges from 2.2 to 5.0 m/s. For Ijebu-Ode, it ranges from 2.0 to 5.0m/s. The wind power density variation based on the Weibull analysis ranges from 4.26 to 24.51 W/m2 for Abeokuta and from 8.54 to 76.46 W/m2 for Ijebu-Ode. Ijebu-Ode was found to be the better of the two sites in terms of annual variation of mean wind speed.

关键词： wind potential wind speed wind power density wind gust turbulence intensity Nigeria

Using passive cooling strategies to improve thermal performance and reduce energy consumption of residential buildings in U.A.E. buildings

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Frontiers of Architectural Research 2014年第2期3卷 154-165页

作者： Hanan m. Taleb Faculty of Engineering British University in Dubai Dubai 502216 UAE

Passive design responds to local climate and site conditions in order to maximise the comfort and health of building users while minimising energy use. The key to designing a passive building is to take best advantage of the local climate. Passive cooling refers to any technologies or design features adopted to reduce the temperature of buildings without the need for power consumption. Consequently, the aim of this study is to test the usefulness of applying selected passive cooling strategies to improve thermal performance and to reduce energy consumption of residential buildings in hot arid climate settings, namely Dubai, United Arab Emirates. One case building was selected and eight passive cooling strategies were applied. Energy simulation software namely IES was used to assess the performance of the building. Solar shading performance was also assessed using Sun Cast Analysis, as a part of the IES software. Energy reduction was achieved due to both the harnessing of natural ventilation and the minimising of heat gain in line with applying good shading devices alongside the use of double glazing. Additionally, green roofing proved its potential by acting as an effective roof insulation. The study revealed several significant findings including that the total annual energy consumption of a residential building in Dubai may be reduced by up to 23.6% when a building uses passive cooling strategies.

关键词： Passive cooling IES software UAE houses Evaporative cooling Shading devices

Appropriate teaching and learning strategies for the architectural design process in pedagogic design studios

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Frontiers of Architectural Research 2017年第2期6卷 204-217页

作者： Ashraf m. Soliman Kingdom University Riffa Bahrain Minia University Minia Egypt

The national qualification framework of a country requires a certain level of knowledge and complexity of skills for an academic degree to be recognized. For architectural programs, student workload is heavy on design courses. Therefore, each course must be carefully developed to ensure that students are not overloaded. Teaching and learning strategies have different implications for courses, which occasionally result in overloading the students. This research aims to study the three main pillars of teaching and [earning strategies for each design phase in pedagogic design studios. The most appropriate model for each teaching and [earning strategy, including a set of the three main pillars, is then identified for each design phase. A practical strategy for managing design studios is also determined. The aforementioned three pillars are as follows： teaching and learning methods, assigned tasks or study aspects, and design communication techniques. Two research methods, namely, a literature review and a survey among design educators, are adopted. The literature review examines aspects that contribute to the design process and its phases, teaching methods, design skills, communication methods, and studio management strategies. On the basis of the literature review, the background of developments and practices in the design education process are used as constructive tools to develop the survey for design educators. Through the survey, the pillars of teaching and [earning strategies that are frequently practiced in design studios are evaluated. Results of this study are classified into three ranks using the nature break classification method for numerical values. Subsequently, three priority models that correspond to teaching and learning strategies, as welt as to the required skills and capabilities, are established. A group-based strategy with an interdisciplinary approach is also determined to be the most suitable technique for managing the pedagogy of architectural

关键词： Architectural design Studio teaching Learning strategy

Rotational flow of Oldroyd-B nanofluid subject to Cattaneo-Christov double diffusion theory

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Applied mathematics and mechanics(English Edition) 2020年第7期41卷 1083-1094页

作者： A.HAFEEZ m.KHAN A.AHmED J.AHmED Department of mathematics Quaid-i-Azam UniversityIslamabad 44000Pakistan Department of Basic Sciences University of Engineering and TechnologyTaxila 47050Pakistan

A nanofluid is composed of a base fluid component and nanoparticles, in which the nanoparticles are dispersed in the base fluid. The addition of nanoparticles into a base fluid can remarkably improve the thermal conductivity of the nanofluid, and such an increment of thermal conductivity can play an important role in improving the heat transfer rate of the base fluid. Further, the dynamics of non-Newtonian fluids along with nanoparticles is quite interesting with numerous industrial applications. The present predominately predictive modeling studies the flow of the viscoelastic Oldroyd-B fluid over a rotating disk in the presence of nanoparticles. A progressive amendment in the heat and concentration equations is made by exploiting the Cattaneo-Christov heat and mass flux expressions. The characteristic of the Lorentz force due to the magnetic field applied normal to the disk is studied. The Buongiorno model together with the Cattaneo-Christov theory is implemented in the Oldroyd-B nanofluid flow to investigate the heat and mass transport mechanism. This theory predicts the characteristics of the fluid thermal and solutal relaxation time on the boundary layer flow. The von K′arm′an similarity functions are utilized to convert the partial differential equations(PDEs) into ordinary differential equations(ODEs). A homotopic approach for obtaining the analytical solutions to the governing nonlinear problem is carried out. The graphical results are obtained for the velocity field, temperature, and concentration distributions. Comparisons are made for a limiting case between the numerical and analytical solutions, and the results are found in good agreement. The results reveal that the thermal and solutal relaxation time parameters diminish the temperature and concentration distributions, respectively. The axial flow decreases in the downward direction for higher values of the retardation time parameter. The impact of the thermophoresis parameter boosts the temperature di

关键词： Oldroyd-B nanofluid rotating disk magnetohydrodynamic(mHD) Cattaneo-Christov theory analytical solution

Coal mine entry rating system:A case study

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International Journal of mining Science and Technology 2021年第1期31卷 145-151页

作者： mark A.Van Dyke Ted m.Klemetti Craig Compton National Institute for Occupational Safety and Health Pittsburgh Mining Research DivisionPittsburghPA 15236USA

Coal mines are continuously seeking to determine the performance of entries with different ground control products and installation *** are many factors that impact how an entry will perform which include but are not limited to geology,overburden,bolting type and pattern,and mine *** the National Institute for Occupational Safety and Health(NIOSH),research has been instituted to examine the relationship of the parts of a coal mine entry as a system and not as individual *** study this relationship,the first step in this study was to create a numeric rating system that accurately reflects visual observations of the mine entry and is easy to *** researchers devised this rating system to improve upon previous ideas,offering increased flexibility which can be incorporated into an overall entry condition that offers different levels of confidence based on the user’s time devoted to the *** new entry rating system was implemented at three different mines over varying periods of time to evaluate the ground response to the geology,bolt installation pattern,stress changes by mining,overburden,and time dependency.

关键词： Coal Geology Rating system Support

The size-dependent elastohydrodynamic lubrication contact of a coated half-plane with non-Newtonian fluid

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Applied mathematics and mechanics(English Edition) 2021年第7期42卷 915-930页

作者： Jie SU Hongxia SONG Liaoliang KE S.m.AIZIKOVICH School of mechanical Engineering Tianjin UniversityTianjin 300350China School of mathematical Science Inner Mongolia UniversityHohhot 010021China Laboratory of Functionally Graded and Composite materials Research and Education Center"Materials"Don State Technical UniversityRostov-on-Don 344000Russia

Based on the couple-stress theory,the elastohydrodynamic lubrication(EHL)contact is analyzed with a consideration of the size *** lubricant between the contact surface of a homogeneous coated half-plane and a rigid punch is supposed to be the non-Newtonian *** density and viscosity of the lubricant are dependent on fluid *** of film thickness,in-plane stress,and fluid pressure are calculated by solving the nonlinear fluid-solid coupled equations with an iterative *** effects of the punch radius,size parameter,coating thickness,slide/roll ratio,entraining velocity,resultant normal load,and stiffness ratio on lubricant film thickness,in-plane stress,and fluid pressure are *** results demonstrate that fluid pressure and film thickness are obviously dependent on the size parameter,stiffness ratio,and coating thickness.

关键词： elastohydrodynamic lubrication(EHL) non-Newtonian fluid size effect couple-stress theory coating

High Performance In Vivo Near-IR (>1 μm) Imaging and Photothermal Cancer Therapy with Carbon Nanotubes

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Nano Research 2010年第11期3卷 779-793页

作者： Joshua T.Robinson Kevin Welsher Scott m.Tabakman Sarah P.Sherlock Hailiang Wang Richard Luong Hongjie Dai Department of Chemistry Stanford UniversityStanfordCA 94305USA Department of Comparative medicine Stanford University School of MedicineStanfordCA 94305USA

Short single-walled carbon nanotubes(SWNTs)functionalized by PEGylated phospholipids are biologically non-toxic and long-circulating nanomaterials with intrinsic near infrared photoluminescence(NIR PL),characteristic Raman spectra,and strong optical absorbance in the near infrared(NIR).This work demonstrates the first dual application of intravenously injected SWNTs as photoluminescent agents for in vivo tumor imaging in the 1.0-1.4μm emission region and as NIR absorbers and heaters at 808 nm for photothermal tumor elimination at the lowest injected dose(70μg of SWNT/mouse,equivalent to 3.6 mg/kg)and laser irradiation power(0.6 W/cm2)reported to *** vivo resonance Raman imaging revealed the SWNT distribution within tumors at a high spatial *** tumor elimination was achieved for large numbers of photothermally treated mice without any toxic side effects after more than six months ***,side-by-side experiments were carried out to compare the performance of SWNTs and gold nanorods(AuNRs)at an injected dose of 700μg of AuNR/mouse(equivalent to 35 mg/kg)in NIR photothermal ablation of tumors in *** effective tumor elimination with SWNTs was achieved at 10 times lower injected doses and lower irradiation powers than for *** results suggest there are significant benefits of utilizing the intrinsic properties of biocompatible SWNTs for combined cancer imaging and therapy.

关键词： Photothermal cancer SWNT imaging treatment