检索结果-南通市图书馆

Can Dietary Pomegranate Peels Reduce Stress Responses Associated with Group Mixing of Holstein Beef Calves？

Journal of Pharmacy and Pharmacology 2014年第7期2卷 404-415页

作者： Sarah Weyl-Feinstein Alla Orlov moran yishay Rotem Agmon Machteld Steensels Vered Sibony Ilan Halachmi Ido Izhaki Ariel Shabtay Department of Ruminant Science Institute of Animal Science Newe Ya 'ar Research Center Agricultural Research Organization Ramat Yishay 30095 Israel Department of Evolutionary and Environmental Biology Faculty of Sciences University of Haifa Haifa 3498838 Israel Institute of Agricultural Engineering-Agricultural Research Organization (ARO)-The Volcani Center Bet-Dagan 50250 Israel

The study investigated whether dietary CPE （concentrated pomegranate peel extract） may mitigate the negative effects associated with group mixing prior to marketing and enhance beef meat quality. Twenty-two bull calves were reared in triplets and divided to control （n = 9） and CPE-treated （n = 13） groups. CPE was supplemented during eight months of rearing, and calves were mixed 34 d prior to marketing to control and treatment groups. Calves were monitored for weight gain, rumination, activity, metabolic and oxidative stress responses, Finally, meat quality traits were examined. The results find that pre-mixing activity （P 〈 0.0001）, non-esterifies fatty acids （P = 0.02） and plasma testosterone （P = 0.005） levels were higher in the treatment group. Following mixing, activity （P 〈 0.0001 ） and plasma anti-oxidative capacity （P = 0.05） increased in the treatment compared to the control group. In spite of the above, dietary supplementation of CPE didn＇t reveal improvement of meat quality parameters by means of meat pH and shelf life It indicated that improved serum anti-oxidant capacity in the CPE calves was not sufficient to prevent the mixing effects on meat quality. A combined CPE concentration and mixing management should be examined in order to reduce mixing related effects on meat quality.

关键词： Bull calves group-mixing CPE anti-oxidative capacity non-esterified fatty acid testosterone.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Automatic Humor Classification on Twitter

Automatic Humor Classification on Twitter

引用

作者： yishay Raz 上海交通大学

学位级别：硕士

Much has been written about humor and even sarcasm automatic recognition on Twitter. Nevertheless, the task of classifying humorous tweets according to the type of humor has not been confronted so far, as far as we *** research is aimed at applying semi-supervised classification algorithms and other NLP algorithms to the challenging task of automatically identifying the type of humor appearing in messages on *** different methods, algorithms, tools and classifiers used are discussed, as well as the specific difficulty encountered due to the very subjective nature of humor and the informal language applied in *** is shown that the discussed methods improve the accuracy of classification by up to 5% above the baseline which is Zero R, the algorithm that classifies all instances to the majority class.

关键词：

来源：

同方学位论文库评论

在线全文

同方学位论文库

学校读者我要写书评

暂无评论

Cracking analysis of fracture mechanics by the finite element method of lines(FEMOL)

引用

Acta Mechanica Sinica 2005年第5期21卷 495-502页

作者： Shaowei Hu Brian moran Department of Materials and Structural Engineering Nanjing Hydraulic Research Institute Nanjing 210024 China Department of Civil Engineering Northwestern University Evanston IL 60201 USA

The Finite Element Method of Lines （FEMOL） is a semi-analytic approach and takes a position between FEM and analytic methods. First, FEMOL in Fracture Mechanics is presented in detail. Then, the method is applied to a set of examples such as edge-crack plate, the central-crack plate, the plate with cracks emanating from a hole under tensile or under combination loads of tensile and bending. Their dimensionless stress distribution, the stress intensify factor （SIF） and crack opening displacement （COD） are obtained, and comparison with known solutions by other methods are reported. It is found that a good accuracy is achieved by FEMOL. The method is successfully modified to remarkably increase the accuracy and reduce convergence difficulties. So it is a very useful and new tool in studying fracture mechanics problems.

关键词： The finite element method of lines (FEMOL) .Cracking analysis . Application

来源：

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

Monte Carlo simulations of dense gas flow and heat transfer in micro-and nano-channels

引用

Science China(Technological Sciences) 2005年第3期48卷 317-325页

作者： WANG moran LI Zhixin Department of Engineering Mechanics Tsinghua UniversityBeijing 100084China Department of Engineering MechanicsTsinghua UniversityBeijing 100084China

The dense gas flow and heat transfer in micro- and nano-channels was simulated using the Enskog simulation Monte Carlo (ESMC) method. The results were compared with those from the direct simulation Monte Carlo (DSMC) method and from the consistent Boltzmann algorithm (CBA). The dense gas flow and heat transfer characteristics were thus analyzed. The results showed that when the gas density was large enough, the finite gas density effect on the flow and heat transfer cannot be ignored, which decreased the skin friction coefficient and changed the heat transfer characteristics on the channel wall surfaces.

关键词： dense gas flows,micro- and nano-channels,Monte Carlo simulation,Enskog equation.

来源：

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

Electron acceleration by Langmuir turbulence in ionospheric heating

引用

Earth and Planetary Physics 2022年第6期6卷 529-535页

作者： moran Liu Chen Zhou Ting Feng Department of Space Physics School of Electronic InformationWuhan UniversityWuhan 430072China

In this study,we investigate the generation of parametric decay instability,Langmuir turbulence formation,and electron acceleration in ionospheric heating via a two-fluid model using the Fokker-Planck equation and Vlasov-Poisson system *** simulation results of both the magnetofluid model and the kinetic model demonstrate the dynamics of electron ***,the results of the Vlasov-Poisson simulations suggest the formation of electron holes in phase space at the same spatial scale as the Langmuir wave,which are shown to be related to electron *** addition,electron acceleration is enhanced through the extension of the wavenumber spectrum caused by strong Langmuir turbulence,leading to more electron holes in phase space.

关键词： electron acceleration Langmuir turbulence electron holes parametric decay instability

来源：

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

引用

Acta Mechanica Solida Sinica 1996年第3期9卷 217-235页

作者： Brian moran Ted Belytschko Department of Civil Engineering Northwestern University EvanstonIL 60208

The Self-Similar Crack Expansion (SSCE) method is used to calculate stress intensity factors for three-dimensional cracks in an infinite medium or semi-infinite medium by the boundary integral element technique, whereby, the stress intensity factors at crack tips are determined by calculating the crack-opening displacements over the crack surface. For elements on the crack surface, regular integrals and singular integrals are precisely evaluated based on closed form expressions, which improves the accuracy. Examples shaw that this method yields very accurate results for stress intensity factors of penny-shaped cracks and elliptical cracks in the full space, with errors of less than 1% as compared with analytical solutions. The stress intensity factors of subsurface cracks ate in good agreement with other analytical solutions.

关键词： self-similar crack expansion stress intensity crack extension method 3-D cracks

来源：

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

Dietary free fatty acids complex with amylose creating another form of resistant starch: Gastrointestinal formation with fowl and swine

引用

Animal Nutrition 2021年第4期7卷 1124-1132页

作者： Edwin T.moran Jr. Poultry Science Department Auburn UniversityAL36849-5416USA

Fat added to poultry and swine feeds often contains abundant free fatty acids(FFA)that can impair digestible energy(DE).Placement of the fatty acid(FA)hydrocarbon chain in the helix core reformed from amylose creates a complex of both *** modifications create a new structure termed the V-helix that becomes resistant toα-*** in grain naturally contain minimal amounts of these complexes with more being generated during food manufacturing when moisture and heat release amylose in the presence of FFA.A paucity of FFA usually exists in complete feeds without sources of poorquality *** fats and by-product meals from rendering are prominent in their saturated FFA content which favorably complex within the helix.V-helix-FA complexes may arise during their concurrent encounter of FFA together with amylose during feed manufacture,particularly *** in the gastrointestinal tract(GIT)are speculated to further form complexes when present together with *** amylose may be dissolved in the gastric and small intestinal milieu,FFA separately coalesce into hydrophobic fat droplets along with other dietary *** of complexes is likely restricted until FFA are released into the aqueous phase during fat ***α-amylase may be prominent,V-helix-FA complexes being resistant to enzymic attack pass into the large *** microbial catabolism of V-helices may generate volatile fatty acids that are absorbed by the mucosa;however,an inability to use FFA once released leads to their excretion and basis for decreased *** microbial populations with young animals usually lack the capacity to fully catabolize the V-helix,further extending the loss in DE.

关键词： Amylose Digestible energy Free fatty acid Feed manufacture

来源：

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

ANALYSIS OF THREE-DIMENSIONAL EDGE CRACKS UNDER TENSILE LOADING

引用

Acta Mechanica Solida Sinica 1999年第2期12卷 174-187页

作者： Brian moran Ted Belytschko Department of Civil Engineering Northwestern UniversityEvanston IL 60208

Three-dimensional edge cracks are analyzed using the Self-SimilarCrack Expansion (SSCE)method with a boundary integral equationtechnique. The boundary integral equations for surface cracks in ahalf space are presented based on a half space Green'sfunction(Mindlin, 1936). By using the SSCe method, the stressintensity factors are determined by crack-opening displacement overthe crack surface. In discrete boundary integral equations, theregular and singular integrals on the crack sur- face elements areevaluated by an analytical method, and the closed form expressions ofthe integrals are given for subsurface cracks and edge cracks.

关键词： Self-similar crack expansion boundary integral equation

来源：

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

On Applicability of Poisson-Boltzmann Equation for Micro-and Nanoscale Electroosmotic Flows

引用

Communications in Computational Physics 2008年第5期3卷 1087-1099页

作者： moran Wang Shiyi Chen Nanomaterials in Environment Agriculture and Technology(NEAT)University of CaliforniaDavisCA 95616USA/Department of Mechanical EngineeringJohns Hopkins UniversityBaltimoreMD 21218USA. Department of Mechanical Engineering Johns Hopkins UniversityBaltimoreMD 21218USA/College of EngineeringPeking UniversityBeijingChina

The applicability of the Poisson-Boltzmann model for micro-and nanoscale electroosmotic flows is a very important theoretical and engineering *** this contribution we investigate this problem at two aspects:first the high ionic concentration effect on the Boltzmann distribution assumption in the diffusion layer is studied by comparisons with the molecular dynamics(MD)simulation results;then the electrical double layer(EDL)interaction effect caused by low ionic concentrations in small channels is discussed by comparing with the dynamic model described by the coupled Poisson-Nernst-Planck(PNP)and Navier-Stokes(NS)*** results show that the Poisson-Boltzmann(PB)model is applicable in a very wide range:(i)the PB model can still provide good predictions of the ions density profiles up to a very high ionic concentration(∼1 M)in the diffusion layer;(ii)the PB model predicts the net charge density accurately as long as the EDL thickness is smaller than the channel width and then overrates the net charge density profile as the EDL thickness increasing,and the predicted electric potential profile is still very accurate up to a very strong EDL interaction(λ/W∼10).

关键词： Poisson-Boltzmann model electroosmotic flow EDL interaction Poisson-NernstPlanck equation.

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Philosophy in China： Reflections on the 24^th World Congress of Philosophy

引用

Frontiers of Philosophy in China 2018年第2期13卷 166-173页

作者： Dermot moran University College Dublin Dublin 4 Ireland

I offer these reflections on philosophy 24^th World Congress of Philosophy, to in preparation for the opening of the be held from August 13-20, 2018, at Peking University. The World Congresses of Philosophy have been ...

关键词：

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：