检索结果-南通市图书馆

effects of dietary hemp seed oil to sows on fatty acid profiles,nutritional and immune status of piglets

在线全文

学校读者我要写书评

暂无评论

Journal of Animal Science and Biotechnology 2020年第2期11卷 545-562页

作者： d.Vodolazska c.Lauridsen department of Animal Science Faculty of Technical SciencesAarhus UniversityBlichers Allé208830 TjeleDenmark

Background:The oil from industrial hemp seeds(cannabis sativa)is an ideal source of stearidonic.a.id,which is a precursor fatty acid for the long-c.a.ned n-3 polyunsaturated fatty *** fatty acids are important for neonatal development,health and *** seed oil has been investigated for the influence on human health,but research on the impact in pig nutrition is *** aim of our research was to study the effect of dietary hemp seed oil relative to soybean oil to lac.a.ing sows on the transfer of fatty acids to the off-spring and the effect on piglets’immune and nutritional ***:The fatty acid composition of the hemp seed and the soybean oil influenced the fatty acid composition of sow plasma,colostrum and mature *** highest proportion of c18:3n-3,c18:4n-3 and c20:4n-6 was obtained in mature milk fat of sows fed 5%hemp seed oil diet when compared to the other dietary fat sources(5%soybean oil or a 50:50 mix of hemp and soybean oil at 5%).The effect of dietary oil supplementation to sows was reflected in the plasma fatty acids profile of *** the proportion of c20:5n-3 and c22:5n-3 was the highest in plasma of piglets suckling sows fed hemp seed oil-containing diets,whereas no c18:4n-3 could be detected hence indicating conversion ofα-linolenic.a.id(ALA)and stearidonic.a.id(SdA)to the longer c.a.ned n-3 polyunsaturated fatty *** fat source also influenced number of born piglets,their weight gain during first week,plasma concentration of glucose and IgG,and haematological ***:The hemp seed oil resulted in direct maternal supply with n-3 long-c.a.n polyunsaturated fatty acids(LcPUFA),espec.a.ly ALA and SdA,and piglets were able to convert these fatty acids obtained via the sow milk intake to c20:5n-3 and c22:***,some interesting effects of the 5%hemp seed oil was obtained with regard to piglet initial body weight gain and glucose,which could be of interest for further research,i.e.,the

关键词： Arachidonic.a.id Immunoglobulin Omaga-3 fatty acids Pig Vitamin e

Relationship between the fatigue behavior and grain structures of an as-extruded Mg-6.2%Zn-0.6%Zr(in wt.%)alloy

在线全文

学校读者我要写书评

暂无评论

Journal of Materials Science & Technology 2023年第18期149卷 119-126页

作者： B.J.Wang d.K.Xu c.L.Jiang L.Y.Sheng e.H.Han School of environmental and chemical engineering Shenyang Ligong UniversityShenyang 110159China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Binzhou Institute of Technology Binzhou 256606China Shandong Key Laboratory of Advanced Aluminium Materials and Technology Binzhou 256606China Shenzhen Institute Shenzhen Key Lab Human Tissue Regenerate&RepairPeking UniversityShenzhen 518057China

Through investigating the tension-tension fatigue behavior of an as-extruded Mg-6.2 wt.%Zn-0.6 wt.%Zr(ZK60)alloy,it revealed that the determined fatigue strength at 107 cycles was quite sensitive to the grain *** them,the fine grain structure had the highest fatigue strength of 130 MPa,whereas the typical“bi-modal”grain structure had the lowest fatigue strength of 110 *** analysis demon-strated that for the fine grain structure,fatigue c.a.ks preferentially nucleated at grain *** the“bi-modal”and c.a.se grain structures,the fatigue c.a.k initiation was dominated by the c.a.king along slip bands.

关键词： Mg alloys Grain structure cyclic slips Fatigue behavior c.a.k initiation

Infuence of elemental composition in environmental impacts of steel

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

Journal of Iron and Steel Research International 2020年第5期27卷 598-607页

作者： e.Batuecas c.Mayo R.diaz F.J.Perez Thermal and Fluid engineering department Carlos III University of Madrid28911 LeganesMadridSpain chemical and Materials engineering department Complutense University of Madrid28040 MadridSpain Technical Sciences and engineering UDIMA University28400 Collado VillalbaMadridSpain。

The environmental behavior of four steels was *** the operation phase of concentrating solar power plants,steels withstand high temperature because of its contact with molten ***,choosing the steel type for the molten salt tanks remains a great *** the cold tank,carbon steel is usually used although an approach with low chromium content steel is being studied for these ***,in high temperature applications,such as hot store tank,austenitic stainless steel is the most frequent ***,ferritic steel is being considered as a promising material in these *** many researchers studied the steel technical properties without considering their environmental damages,this work aimed to introduce the environmental aspects into the material choice by using the life cycle assessment *** one hand,the results showed the environmental adequacy of carbon steel against low chromium content *** the other hand,the results obtained in those steels suitable in high temperature application revealed signifcant environmental benefts from the ferritic steel instead of the austenitic steel.

关键词： Renewable energy concentrating solar power Life cycle assessment Molten salt Ferritic steel Austenitic steel

Identification of binding interactions between myeloperoxidase and its antibody using SeRS

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

Nano-Micro Letters 2010年第2期2卷 74-82页

作者： e.S.Papazoglou S.Babu S.Mohapatra d.R.Hansberry c.Patel School of Biomedical engineering Science & Health Systems Drexel University

Surface enhanced.raman Spectroscopy(SeRS) is a widely used spectroscopic method that can dramatically increase the sensitivity of raman spectroscopy and has demonstrated significant benefit in the identification of biological molecules. We report the use of SeRS in differentiating the bound immunocomplex of myeloperoxidase(MPO) and its antibody from the unbound complex and its individual components. The SeRS signal was enabled by gold nanoparticles attached to MPO, p Ab and their immunocomplex at an excitation wavelength of 785 nm. The obtained SeRS spectrum of MPO is in agreement with previous literature. comparative SeRS spectrum analysis of MPO, p Ab, and their immunocomplex reveals the significant peak shifts and intensity variations caused by the conformational c.a.ges due to the immunocomplex formation. Several key areas have been identified which correspond to specific.a.ino acids being shielded from undergoing resonance while new amino acid residues are made visible in the SeRS spectrum of the immunocomplex and could be a result of conformational binding. Our work demonstrates the capability of SeRS to identify binding events and differentiate an immunocomplex from its unbound components with direct applications in biosensors.

关键词： Gold nanoparticle Antigen Immunocomplex Biosensors

Sensory quality of meat from eight different types of cattle in relation with their biochemical c.a.acteristics

在线全文

学校读者我要写书评

暂无评论

Journal of Integrative Agriculture 2016年第7期15卷 1550-1563页

作者： M Gagaoua e M c Terlouw d Micol J-F Hocquette A P Moloney K Nuernberg d Bauc.a.t A Boudjellal N d Scollan R I Ric.a.dson B Picard INra UMRH 1213Unite de Recherches sur les HerbivoresTheix63122 Saint Genes ChampanelleFrance VetAgro Sup UMRH 1213Unite de Recherches surles HerbivoresTheix63122 Saint Genes ChampanelleFrance equipe Maquav INA TAAUniversite Freres Mentouri ConstantineRoute de Ain El-Bey25000 ConstantineAlgeria Teagasc Animal and Grassland Research and Innovation CentreGrangeDunsanyCo.MeathIreland FBN Leibniz Institute for Farm Animal Biology W-StahI-Allee 218196 DummerstorfGermany Institute of Biological Environmental and Rural Sciences(IBERS)Aberystwyth UniversityGogerddanAberystwyth SY23 3EBUnited Kingdom division of Farm Animal Science University of BristolLangford HouseBristol BS40 5DUUnited Kingdom

The present study compared eight breeds of cattle differing in gender （heifers, buls and steers） to determine assoc.a.ions between muscle c.a.acteristics and meat sensory qualities of theLongissimus thoracis muscle. Animal types differed in al the muscle c.a.acteristics and sensory qualities. Many correlations among muscle c.a.acteristics and among sensory qualities were consistent for most animal types. Isocitrate dehydrogenase （IcdH） activities alowed discrimination of muscles with respect to myosin heavy c.a.n （MyHc）-I proportions for al animal types. Lac.a.e dehydrogenase （LdH） and phos-phofructokinase （PFK） activities were positively correlated for most animal types. Overal liking was correlated with beef lfavour and abnormal lfavour in al animal types and with global tenderness for al animal types except for c.a.olais cross breed steers. For al animal types except for Angus×Friesian heifers, beef lfavour and abnormal lfavour were negatively correlated. Overal liking was not correlated with juiciness. PFK, IcdH and citrate synthase （cS） activities were strongly assoc.a.ed with tenderness, beef lfavour and overal liking when average values for al animal types were used. However, assoc.a.ions between muscle c.a.acteristics and sensory qualities within animal types were weak and inconsistent.

关键词： cattle muscle c.a.acteristics meat sensory qualities gender breed prediction

eMP control and c.a.acterization on high-power laser systems

在线全文

学校读者我要写书评

暂无评论

High Power Laser Science and engineering 2018年第2期6卷 55-62页

作者： P.Bradford N.c.Woolsey G.G.Scott G.Liao H.Liu Y.Zhang B.Zhu c.a.mstrong S.Astbury c.Brenner P.Brummitt F.consoli I.east R.Gray d.Haddock e Huggard e J.R.Jones e.Montgomery I.Musgrave e Oliveira d.R.Rusby c.Spindloe B.Summers e.Zemaityte Z.Zhang Y.Li P.McKenna d.Neely department of Physics York Plasma InstituteUniversity of YorkHeslingtonYork YO10 5DDUK central Laser Facility STFC Rutherford Appleton LaboratoryDidcot OX110QXUK Key Laboratory for Laser Plasmas(Ministry of education)and School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Beijing National Laboratory for condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijing 100190China School of Physical Sciences University of Chinese Academy of SciencesBeijing 100049China department of Physics SUPA University of StrathclydeGlasgow G40NGUK eNeA-c.R.Frascati-dipartimento FSN Via E.Fermi 4500044 FrascatiItaly Space Science department STFC Rutherford Appleton LaboratoryDidcot OX110QXUK

Giant electromagnetic pulses(eMP) generated during the interaction of high-power lasers with solid targets can seriously degrade electrical measurements and equipment. eMP emission is caused by the acceleration of hot electrons inside the target, which produce radiation across a wide band from dc to terahertz frequencies. Improved understanding and control of eMP is vital as we enter a new era of high repetition rate, high intensity lasers(e.g. the extreme Light Infrastructure).We present recent data from the VULcAN laser facility that demonstrates how eMP can be readily and effectively reduced. c.a.acterization of the eMP was achieved using B-dot and d-dot probes that took measurements for a range of different target and laser parameters. We demonstrate that target stalk geometry, material composition, geodesic path length and foil surface area can all play a significant role in the reduction of eMP. A combination of electromagnetic wave and 3 d particle-in-cell simulations is used to inform our conclusions about the effects of stalk geometry on eMP,providing an opportunity for comparison with existing c.a.ge separation models.

关键词： high energy density physics high-power laser related laser components laser plasmas interaction target design and fabrication

State of Science:Why does Rework Occur in construction?What Are Its consequences?And What can be done to Mitigate Its Occurrence?

在线全文

学校读者我要写书评

暂无评论

engineering 2022年第11期18卷 246-258页

作者： Peter e.d.Love Jane Matthews Mic.a.l c.P.Sing Stuart R.Porter Weili Fang School of civil and Mec.a.ical engineering Curtin UniversityPerthWA 6845Australia School of Architecture and Built environment Deakin University Geelong Waterfront CampusGeelongVIC 3220Australia School of Architecture and Built environment The University of NewcastleCallaghanNSW 2308Australia department of civil and Building Systems Technische Universität BerlinBerlin 13156Germany

There has been a wealth of research that has examined the nature of rework in *** toward addressing the rework problem has been limited-it still plagues practice,adversely impacting a project’s *** all rework studies have focused on determining its proximal or root causes and therefore have overlooked the conditions that result from its *** filling this void,this paper draws upon our previous empirical studies,amongst others,to provide a much-needed theoretical framing to understand better why rework occurs,what its consequences are,and how it can be mitigated during *** theoretical framing we derive from our review provides construction organizations and their projects with a realization that the journey to mitigating rework begins with creating an error-mastery culture comprising authentic leadership,psychological safety,an errormanagement orientation,and *** suggest that,once an error-mastery culture is established within construction organizations and their projects,they will be better positioned to realize the benefits of the techniques,tools,and technologies espoused to address rework,such as the Last Planner® and building information *** also provide directions for future research and identify implications for practice so that strides toward rework mitigation in construction can be made.

关键词： construction errors error-mastery culture Pathogens Rework Violations

On Spiral Waves Arising in Natural Systems

在线全文

学校读者我要写书评

暂无评论

communications in computational Physics 2010年第8期8卷 610-622页

作者： d.Bini c.cherubini S.Filippi A.Gizzi P.e.Ricci Istituto per le Applicazioni del calcolo“M.Picone” CNR I-00161 RomeItaly International center for Relativistic.a.trophysics-I.c.R.A. University of Rome“La Sapienza”I-00185 RomeItaly Nonlinear Physics and Mathematical Modeling Lab Faculty of EngineeringUniversity Campus Bio-MedicoI-00128 RomeItaly Alberto Sordi Foundation-Research Institute on Aging I-00128 RomeItaly Mathematics department University of Rome“La Sapienza”I-00185 RomeItaly

Spiral waves appear in many different natural contexts:excitable biological tissues,fungi and amoebae colonies,chemical reactions,growing crystals,fluids and gas eddies as well as in *** the existing theories explain the presence of spirals in terms of nonlinear parabolic equations,it is explored here the fact that selfsustained spiral wave regime is already present in the linear heat operator,in terms of integer Bessel functions of complex *** solutions,even if commonly not discussed in the literature because diverging at spatial infinity,play a central role in the understanding of the universality of spiral *** particular,we have studied how in nonlinear reaction-diffusion models the linear part of the equations determines the wave front appearance while nonlinearities are mandatory to cancel out the blowup of *** spiral wave pattern still requires however at least two cross-reacting species to be physically *** implications of such a results are discussed.

关键词： Reaction-diffusion equations biophysics crystal growth heat transfer

Suppressing effect of Heat Treatment on the Portevin–Le c.a.elier Phenomenon of Mg–4%Li–6%Zn–1.2%Y Alloy

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

Journal of Materials Science & Technology 2016年第12期32卷 1232-1238页

作者： c.Q.Li d.K.Xu B.J.Wang L.Y.Sheng e.H.Han School of Materials Science and engineering Northeastern University Shenyang 110819 China Key Laboratory of Nuclear Materials and Safety Assessment Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China environmental corrosion center Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Shenzhen Institute Shenzhen Key Lab Human Tissue Regenerate and Repair Peking University Shenzhen 518057 China

Microstructural evolution and Portevin-Le c.a.elier（PLc） phenomenon of the as-extruded Mg-4%Li-6%Zn-1.2%Y alloy before and after heat treatment have been *** has been demonstrated that for the as-extruded and solid solution treated（T4） samples,the PLc phenomenon could be obviously observed on tensile stress-strain ***,the PLc phenomenon in T4 samples was more salient than that in the as-extruded condition,suggesting that the occurrence of PLc phenomenon was closely related to the super-saturation degree of solute atoms in the *** most of solute atoms were consumed for the formation of Mg Zn precipitates（β1′ and a little of β2′） during the subsequent ageing treatment（T6）,the PLc phenomenon of T6 samples was ***,due to the pinning effect of the formed Mg Zn precipitates on mobile dislocations,the tensile strength of T6 samples was relatively higher than those of the other two conditions.

关键词： Mg-Li alloy Heat treatment Portevin-Le c.a.elier (PLc) effect Precipitates