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Growth performance,haematology,serum biochemistry and meat quality characteristics of Japanese quail(Coturnix coturnix japonica)fed canola meal-based diets

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Animal Nutrition 2018年第1期4卷 37-43页

作者： Caven M.Mnisi victor Mlambo Department of Animal Science School of Agricultural SciencesFaculty of AgricultureScience and TechnologyNorth-West University Food Security and Safety Niche Area Faculty of AgricultureScience and TechnologyNorth-West University

The present study investigated the effect of partial replacement of soybean meal(Glycine max) with canola meal(CM)(Brassica napus) on the growth performance,haematology,serum biochemistry and meat quality characteristics of female Japanese quails in a 35-day feeding *** hundred and forty6-week-old quails 158.28 ± 11.919 g were randomly allocated to 5 isonitrogenous and isoenergetic experimental diets: control diet(CM0; with no CM inclusion); CM0 with 2.5%(CM25),5.0%(CM50),12.5%(CM125) and 17.5%(CM175) soybean meal replaced with *** weekly gain(AWG) and feed conversion efficiency(FCE) were ***,serum biochemistry,carcass traits and meat quality parameters were determined at *** fed CM175 had the lowest(P 0.05) on cooking losses and peak positive force of quail *** was concluded that CM can replace soybean in quail diets up to 12.5% without compromising growth performance,health and quality of *** levels beyond 12.5% promoted poor voluntary feed intake and thus may require feed additives to enhance utilization.

关键词： Japanese quail Haematology Meat Feed intake Canola meal

Mitochondrial DNA analysis of human remains from the Yuansha site in Xinjiang, China

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Science China(Life Sciences) 2008年第3期51卷 205-213页

作者： Idelisi ABUDURESULE victor H. MAIR Xinjiang Cultural Relics and Archaeology Institute Chinese Language and Literature Department of East Asian Languages and Civilizations University of Pennsylvania USA

The Yuansha site is located in the center of the Taklimakan Desert of Xinjiang, in the southern Silk Road region. MtDNA was extracted from fifteen human remains excavated from the Yuansha site, dating back 2,000―2,500 years. Analysis of the phylogenetic tree and the multidimensional scaling (MDS) reveals that the Yuansha population has relatively close relationships with the modern populations of South Central Asia and Indus Valley, as well as with the ancient population of Chawuhu.

关键词： Yuansha site ancient DNA mtDNA Xinjiang Central Asia

Strategies for reducing the costs of clean-energy technologies in buildings in Nigeria

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Clean Energy 2020年第4期4卷 349-359页

作者： Samuel Ekung victor Ohama Reginald Ajiero Department of Quantity Surveying Imo State UniversityOwerriNigeria Department of Building University of UyoUyoNigeria

The costs of clean-energy technologies are currently very high and their adoption in buildings is *** study evaluated strategies for improving the cost performance of photovoltaic(PV)electricity applied in buildings in Nigeria using a questionnaire survey involving 415 *** efficacy of each strategy and consensus in respondents’perceptions were determined using Fuzzy Set Theory and Kruskal-Wallis *** top four strategies for achieving PV-cost reduction are mandating green buildings,standardization of building designs and PV components,facilitating import licensing and massive public *** these strategies to improve the PV value chain will increase the supply capacity of clean energy in emerging markets.

关键词： buildings cost reduction photovoltaic sustainable energy sustainable development

Dynamics of Low-Viscosity Liquids Interface in an Unevenly Rotating Vertical Layer

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Fluid Dynamics & Materials Processing 2024年第4期20卷 693-703页

作者： victor Kozlov Vladimir Saidakov Nikolai Kozlov Laboratory of Vibrational Hydromechanics Perm State Humanitarian Pedagogical UniversityPerm614990Russia Institut de Mécanique des Fluides de Toulouse Toulouse INPToulouse31400France

The behavior of two immiscible low-viscosity liquids differing in density and viscosity in a vertical flat layer undergoing modulated rotation is experimentally *** layer has a circular axisymmetric *** the absence of modulation of the rotation speed,the interphase boundary has the shape of a short axisymmetric cylinder.A new effect has been discovered,under the influence of rotation speed modulation,the interface takes on a new dynamic equilibrium state.A more viscous liquid covers the end boundaries of the layer in the form of thin films,which have the shape of round spots of almost constant radius;with increasing amplitude of the velocity modulation,the wetting boundary *** is found that upon reaching the critical amplitude of oscillations,the film of a viscous liquid loses stability,and the outer edge of the wetting spot collapses and takes on a feathery *** is shown that this threshold is caused by the development of the Kelvin-Helmholtz oscillatory instability of the *** spreading radius of a spot of light viscous liquid and its stability are studied depending on the rotation rate,amplitude,and frequency of rotation speed *** discovered averaged effects are determined by different oscillatory interaction of fluids with the end-walls of the cell,due to different *** effect of films forming can find application in technological processes to intensify mass transfer at interphase boundaries.

关键词： Rotation oscillations immiscible fluids contact line interface film dynamic equilibrium Nomenclature frot

A Fast Local Level Set Method for Inverse Gravimetry

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Communications in Computational Physics 2011年第9期10卷 1044-1070页

作者： victor Isakov Shingyu Leung Jianliang Qian Department of Mathematics and Statistics Wichita State UniversityWichitaKansasUSA Department of Mathematics Hong Kong University of Science and TechnologyClear Water BayHong Kong SAR Department of Mathematics Michigan State UniversityEast LansingMI 48824USA

We propose a fast local level set method for the inverse problem of *** theoretical foundation for our approach is based on the following uniqueness result:if an open set D is star-shaped or x3-convex with respect to its center of gravity,then its exterior potential uniquely determines the open set *** achieve this purpose constructively,the first challenge is how to parametrize this open set D as its boundary may have a variety of possible *** describe those different shapes we propose to use a level-set function to parametrize the unknown boundary of this open *** second challenge is how to deal with the issue of partial data as gravimetric measurements are only made on a part of a given reference domainΩ.To overcome this difficulty,we propose a linear numerical continuation approach based on the single layer representation to find potentials on the boundary of some artificial domain containing the unknown set *** third challenge is how to speed up the level set inversion *** on some features of the underlying inverse gravimetry problem such as the potential density being constant inside the unknown domain,we propose a novel numerical approach which is able to take advantage of these features so that the computational speed is accelerated by an order of *** carry out numerical experiments for both two-and three-dimensional cases to demonstrate the effectiveness of the new algorithm.

关键词： Level set methods inverse gravimetry fast algorithms numerical continuation

Thin Layer Models for Electromagnetism

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Communications in Computational Physics 2014年第6期16卷 213-238页

作者： Marc Durufle victor Peron Clair Poignard Team Magique-3D INRIA Bordeaux-Sud-OuestInstitut de Mathematiques de BordeauxCNRS UMR 5251&Universit´e de Bordeaux1351 cours de la Liberation33405 Talence CedexFrance Team Magique-3D INRIA Bordeaux-Sud-OuestLMAP CNRS UMR 5142&Universite de Pau et des Pays de l’AdourFrance. Team MC2 INRIA Bordeaux-Sud-OuestInstitut de Mathematiques de BordeauxCNRS UMR 5251&Universite de Bordeaux1351 cours de la Liberation33405 Talence CedexFrance.

We present a review on the accuracy of asymptotic models for the scattering problem of electromagnetic waves in domains with thin *** models appear as first order approximations of the electromagnetic *** are obtained thanks to a multiscale expansion of the exact solution with respect to the thickness of the thin layer,that makes possible to replace the thin layer by approximate *** present the advantages and the drawbacks of several approximations together with numerical validations and *** main motivation of this work concerns the computation of electromagnetic field in biological *** main difficulty to compute the local electric field lies in the thinness of the membrane and in the high contrast between the electrical conductivities of the cytoplasm and of the membrane,which provides a specific behavior of the electromagnetic field at low frequencies.

关键词： Asymptotics time-harmonic Maxwell’s equations finite element method edge elements.

Positive combinations of projections in von Neumann algebras and purely infinite simple C*-algebras

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Science China Mathematics 2011年第11期54卷 2383-2393页

作者： KAFTAL victor NG PingWong ZHANG Shuang Department of Mathematics University of Cincinnati Cincinnati Ohio 45221-0025 USA Department of Mathematics University of Louisiana at Lafayatte Lafayette Louisiana 70504-1010 USA

We give an overview of the question： which positive elements in an operator algebra can be written as a linear combination of projections with positive coefficients. A special case of independent interest is the question of which positive elements can be written as a sum of finitely many projections. We focus on von Neumann Mgebras, on purely infinite simple C^＊-algebras, and on their associated multiplier algebras.

关键词： C^*-algebras linear combinations positive combinations projections

Experimental Study of Thermal Convection and Heat Transfer in Rotating Horizontal Annulus

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Fluid Dynamics & Materials Processing 2024年第11期20卷 2475-2488页

作者： Alexei Vjatkin Svyatoslav Petukhov victor Kozlov Laboratory of Vibrational Hydromechanics Perm State Humanitarian Pedagogical UniversityPerm614990Russia

A genuine technological issue–the thermal convection of liquid in a rotating cavity–is investigated *** experiments are conducted within a horizontal annulus with isothermal boundaries. The inner boundaryof the annulus has a higher temperature, thus exerting a stabilising influence on the system. It is shown that whenthe layer rotation velocity diminishes, two-dimensional azimuthally periodic convective rolls, rotating togetherwith the cavity, emerge in a threshold manner. The development of convection is accompanied by a significantintensification of heat transfer through the layer. It is shown that the averaged thermal convection excitation inthe form of a system of two-dimensional rolls occurs against the background of oscillations of a non-isothermalfluid in the cavity reference frame caused by the gravity field. The excitation threshold and the structure ofconvective rolls are consistent with the results of the earlier theoretical studies by the authors performed usingthe equations of “vibrational” convection obtained by the averaging method. Furthermore, the experiments haverevealed a new type of averaged flow in the form of a spatially periodic system of toroidal vortices. It is shown thata steady streaming, excited by the inertial oscillations of the fluid, is responsible for the generation of the toroidalvortices. These flows develop in a non-threshold manner and are most clearly manifested in a case of resonantexcitation of one of the inertial modes.

关键词： Thermal convection horizontal annulus rotation averaged convection inertial modes steadyflows

Novel Taguchi scheme-based DEMATEL methods and DEMATEL method for the principal performance indicators of maintenance in a food processing industry

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International Journal of Intelligent Computing and Cybernetics 2021年第3期14卷 363-397页

作者： victor Chidiebere Maduekwe Sunday Ayoola Oke Department of Mechanical Engineering Faculty of EngineeringUniversity of LagosAkoka YabaNigeria

Purpose-Key performance indicators(KPIs)of maintenance systems serve as benchmarks to workers and organizations to compare their goals for decision-making ***,the effects of one KPI on the other are least known,restraining decisions on prioritization of *** article examines and prioritizes the KPIs of the maintenance system in a food processing industry using the novel Taguchi(T)scheme-decisionmaking trial and evaluation laboratory(DEMATEL)method,Taguchi-Pareto(TP)scheme-DEMATEL method and the DEMATEL ***/methodology/approach-The causal association of maintenance process parameters(frequency of failure,downtime,MTTR,MTBF,availability and MTTF)was ***,the optimized maintenance parameters were infused into the DEMATEL method that translates the optimized values into cause and effect responses and keeping in view the result of *** collection was done from a food processing plant in ***-The results indicated that downtime and availability have the most causal effects on other criteria when DEMATEL and T-DEMATEL methods were respectively applied to the ***,the frequency of failure is mostly affected by other criteria in the key performance indication selection using the two *** combined Taguchi scheme and DEMATEL method is appropriate to optimize and establish the causal relationships of ***/value-Hardly any studies have reported the joint optimization and causal relationship of maintenance system ***,the current study achieves this goal using the T-DEMATEL,TP-DEMATEL and DEMATEL methods for the first *** applied methods effectively ease decisions on prioritization of KPIs for enhancement.

关键词： Maintenance Performance DEMATEL Food processing Indicators