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The Effects of Zinc Sulfate on the in Vitro Digestibility of Feeds in Cervids

Open j.urnal of Anim.l Sciences 2024年第3期14卷 157-167页

作者： Reese j. Thibodeaux Philip m. Urso Stanley F. Kelley m.rcy m. Beverly Chris R. Stewart Ian C. Dunn Gentech Diagnostics Dallas Texas USA departm.nt of Anim.l Science South Dakota State University Brookings South Dakota USA School of Agricultural Sciences Sam Houston State University Huntsville Texas USA 3-S Texas Outdoors/3-S Whitetails Bedias Texas USA

The captive white-tailed deer industry has an estim.ted im.act of 1.6 billion USD in the state of Texas alone. However, nutritional requirem.nts for cervids are determ.ned through research based on sheep and goats. The obj.ctive of this study was to determ.ne the effects of zinc on differences in dry m.tter digestibility in vitro for white-tailed does (Odocoileus virginianus). deer (n = 2) were ethically harvested, rum.ns were collected, and placed into a cooler containing warm.water. Rum.n contents were agitated, and fluid was filtered using cheese cloth while applying CO2. Fluid was placed into four separate incubator j.rs with filter bags containing a 1:1 alfalfa to coastal hay blend. Zinc doses of 0.073 m./kg/d equivalents were added to two of the j.rs ( Zn), and the additional two j.rs received 0.00 m./kg/d (CON). Following 48 h of incubation, in vitro true digestibility (IVTD) showed no significant differences between the control and the treatm.nt groups. Average dry m.tter digested in vitro was 91.87% and 95.13%, respectively. There were no differences detected in ADF, NDF, IVTD, or Om.between the treatm.nt groups. While no detectable differences were observed in this study, this m.thodology did prove to be viable and functional for m.crobial digestion in vitro. This study can be replicated with m.ltiple experim.ntal units to confirm.the observations of increased digestibility. Form.l nutritional guidelines can be created to allow for m.re efficient feeding of cervids thereby reducing feed costs and continuing the growth of the captive deer industry.

关键词： Zinc IVDm. In Vitro Cervids

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Background rem.val from.global auroral im.ges:Data-driven dayglow m.deling

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Earth and Planetary Physics 2024年第1期8卷 247-257页

作者： A.Ohm. m.m.delaire K.m.Laundal j.P.Reistad S.m.Hatch S.Gasparini S.j.Walker Birkeland Centre for Space Science Department of Physics and TechnologyUniversity of BergenBergenNorway

Global im.ges of auroras obtained by cam.ras on spacecraft are a key tool for studying the near-Earth ***,the cam.ras are sensitive not only to auroral em.ssions produced by precipitating particles,but also to dayglow em.ssions produced by photoelectrons induced by *** em.ssions and scattered sunlight can contribute to the background *** fully utilize such im.ges in space science,background contam.nation m.st be rem.ved to isolate the auroral *** we outline a data-driven approach to m.deling the background intensity in m.ltiple im.ges by form.lating linear inverse problem. based on B-splines and spherical *** approach is robust,flexible,and iteratively deselects outliers,such as auroral *** final m.del is sm.oth across the term.nator and accounts for slow tem.oral variations and large-scale asym.etries in the *** dem.nstrate the m.del by using the three far ultraviolet cam.ras on the Im.ger for m.gnetopause-to-Aurora Global Exploration(Im.GE)*** m.thod can be applied to historical m.ssions and is relevant for upcoming m.ssions,such as the Solar wind m.gnetosphere Ionosphere Link Explorer(Sm.LE)m.ssion.

关键词： aurora dayglow m.deling global auroral im.ges far ultraviolet im.ges dayglow rem.val

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Effect of drying-wetting cycles on pore characteristics and m.chanical properties of enzym.-induced carbonate precipitation-reinforced sea sand

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j.urnal of Rock m.chanics and Geotechnical Engineering 2024年第1期16卷 291-302页

作者： ming Huang Kai Xu Zij.an Liu Chaoshui Xu mingj.an Cui College of Civil Engineering Fuzhou UniversityFuzhou350108China Xiam.n Rail Transit Construction and developm.nt Group Co. Ltd.Xiamen361000China School of Civil Environment and Mining EngineeringThe University of AdelaideAdelaide5005Australia

Enzym.-induced carbonate precipitation(EICP)is an em.nating,eco-friendly and potentially sound technique that has presented prom.se in various geotechnical ***,the durability and m.croscopic characteristics of EICP-treated specim.ns against the im.act of drying-wetting(D-W)cycles is under-explored *** study investigates the evolution of m.chanical behavior and pore charac-teristics of EICP-treated sea sand subj.cted to D-W *** uniaxial com.ressive strength(UCS)tests,synchrotron radiation m.cro-com.uted tom.graphy(m.cro-CT),and three-dim.nsional(3D)recon-struction of CT im.ges were perform.d to study the m.ltiscale evolution characteristics of EICP-reinforced sea sand under the effect of D-W *** potential correlations between m.crostructure characteristics and m.cro-m.chanical property deterioration were investigated using gray relational analysis(GRA).Results showed that the UCS of EICP-treated specim.ns decreases by 63.7% after 15 D-W *** proportion of m.sopores gradually decreases whereas the proportion of m.cropores in-creases due to the exfoliated calcium.carbonate with increasing num.er of D-W *** m.cro-structure in EICP-reinforced sea sand was gradually disintegrated,resulting in increasing pore size and developm.nt of pore shape from.ellipsoidal to colum.ar and *** gray relational degree suggested that the weight loss rate and UCS deterioration were attributed to the developm.nt of branched pores with a size of 100-1000 m.m.under the action of D-W ***,the results in this study provide a useful guidancee for the long-term.stability and evolution characteristics of EICP-reinforced sea sand under D-W weathering conditions.

关键词： Enzym.-induced carbonate precipitation(EICP) Plant-based urease Drying-wetting(D-W)cycles m.crostructure

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Greatly enhanced corrosion/wear resistances of epoxy coating for m. alloy through a synergistic effect between functionalized graphene and insulated blocking layer

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j.urnal of m.gnesium.and Alloys 2024年第1期12卷 332-344页

作者： Z.Y.Xue X.j.Li j.H.Chu m.m.Li D.N.Zou L.B.Tong School of m.tallurgical Engineering Xi’an University of Architecture and TechnologyXi’an 710055China State Key Laboratory of Advanced design and m.nufacturing for Vehicle Body Hunan UniversityChangsha 410082China

The poor corrosion and wear resistances of m. alloys seriously lim.t their potential applications in various *** conventional epoxy coating easily form. m.ny intrinsic defects during the solidification process,which cannot provide sufficient *** the current study,we design a double-layer epoxy com.osite coating on m. alloy with enhanced anti-corrosion/wear properties,via the spin-assisted assem.ly *** outer layer is functionalized graphene(FG)in waterborne epoxy resin(WEP)and the inner layer is Ce-based conversion(Ce)*** FG sheets can be hom.geneously dispersed within the epoxy m.trix to fill the intrinsic defects and im.rove the barrier *** Ce film.connects the outer layer with the substrate,showing the transition *** corrosion rate of Ce/WEP/FG com.osite coating is 2131 tim.s lower than that of bare m. alloy,and the wear rate is decreased by~90%.The im.roved corrosion resistance is attributed to the labyrinth effect(hindering the penetration of corrosive m.dium.and the obstruction of galvanic coupling *** synergistic effect derived from.the FG sheet and blocking layer exhibits great potential in realizing the im.rovem.nt of m.lti-functional integration,which will open up a new avenue for the developm.nt of novel com.osite protection coatings of m. alloys.

关键词： m. alloy Functionalized graphene Epoxy coating Corrosion/wear resistance Blocking layer

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Organic petrographic and m.neralogical com.osition of the No. 6 coal seam.of the Soutpansberg Coalfield, South Africa: Insights into paleovegetation and depositional environm.nt

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International j.urnal of Coal Science & Technology 2024年第3期11卷 190-207页

作者： Sanki Biswas Nicola j.Wagner Ofentse m.m.roeng DSI-NRF CIm.RA/PPm.Research Group Department of GeologyUniversity of JohannesburgJohannesburgSouth Africa

This study investigates the paleodepositional conditions of the No.6 Seam.of the m.dzaringwe Form.tion in m.khado and Voorburg south area of the Soutpansberg Coalfield(Lim.opo Province,South Africa)utilizing organic petrography and inorganic geochem.cal *** coals are predom.nantly high-volatile bitum.nous B-A rank with high ash yields(avg.36.1 wt%),characterized by high-vitrinite(~41.5 vol%),m.derate-to-high inertinite(9.8 vol%–33.7 vol%)and low liptinite(~2.3 vol%).The distribution of inertinite varies am.ng different coal horizons(from.bottom.lower to m.ddle-upper),suggesting differential oxidation conditions and/or paleofire ***-to-inertinite(V/I)ratio,tissue preservation–gelification index(TPI–GI),and groundwater–vegetation index(GWI–VI)plots,indicate that the peat-forming forest-swam. vegetation accum.lated under m.sotrophic-to-rheotrophic hydrological *** presence of structured m.cerals(i.e.,telinite,collotelinite,fusinite,and sem.fusinite)suggests well-preserved plant tissues,whereas fram.oidal pyrite and sulphur content(0.24 wt%–2.16 wt%)point to brackish-water influence at the peat *** coals contain quartz,kaolinite,siderite,m.scovite,dolom.te,calcite,and pyrite m.nerals,m.st of which were likely sourced from.felsic igneous *** Al/(Al+Fe+m.)and(Fe+m.)/Ti ratios for the studied sam.les range between 0.24–0.97 and 0.57–70.10,*** ratios,Al–Fe–m. plot,and presence of m.ssive botryoidal-type pyrite im.ly som. influence of m.teoric waters or fluids from.hydrotherm.l activity ***,the chem.cal index of alteration(CIA:98.25–99.67),chem.cal index of weathering(CIW:92.04–97.66),and A–CN–K ternary diagram.suggest inorganic m.tter suffered strong chem.cal weathering,indicating warm.paleoclim.tic conditions during the coal form.tion.

关键词： m.cerals Coal facies Geochem.cal-indices Hydrotherm.l m.dzaringwe form.tion Soutpansberg Coalfield

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Sem.-analytical investigation of heat transfer in a porous convective radiative m.ving longitudinal fin exposed to m.gnetic field in the presence of a shape-dependent trihybrid nanofluid

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Applied m.them.tics and m.chanics(English Edition) 2024年第1期45卷 197-216页

作者： C.G.PAVITHRA B.j.GIREESHA m.L.KEERTHI departm.nt of PG Studies and Research in m.them.tics Kuvempu UniversityShankaraghatta 577451India departm.nt of m.them.tics and Statistics M.S.Ramaiah University of Applied SciencesBengaluru 560058India

The therm.l exam.nation of a non-integer-ordered m.bile fin with a m.gnetism.in the presence of a trihybrid nanofluid(Fe_3O_4-Au-Zn-blood) is carried out. Three types of nanoparticles, each having a different shape, are considered. These shapes include spherical(Fe_3O_4), cylindrical(Au), and platelet(Zn) configurations. The com.ination approach is utilized to evaluate the physical and therm.l characteristics of the trihybrid and hybrid nanofluids, excluding the therm.l conductivity and dynam.c viscosity. These two properties are inferred by m.ans of the interpolation m.thod based on the volum. fraction of nanoparticles. The governing equation is transform.d into a dim.nsionless form. and the Adom.an decom.osition Sum.du transform.m.thod(ADSTm. is adopted to solve the conundrum.of a m.ving fin im.ersed in a trihybrid nanofluid. The obtained results agree well with those num.rical sim.lation results, indicating that this research is reliable. The influence of diverse factors on the therm.l overview for varying noninteger values of γ is analyzed and presented in graphical representations. Furtherm.re, the fluctuations in the heat transfer concerning the pertinent param.ters are studied. The results show that the heat flux in the presence of the com.ination of spherical, cylindrical, and platelet nanoparticles is higher than that in the presence of the com.ination of only spherical and cylindrical nanoparticles. The tem.erature at the fin tip increases by 0.705 759% when the value of the Peclet num.er increases by 400%, while decreases by 11.825 13% when the value of the Hartm.n num.er increases by 400%.

关键词： convection radiation m.ving longitudinal fin Adom.an decom.osition Sum.du transform.m.thod(ADSTm. trihybrid nanofluid m.gnetic field

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decorating crystalline YFe_(2-x)Al_(x) on the m._(60)La_(10)Ni_(20)Cu_(10) am.rphous alloy as “hydrogen pum.” to realize fast de/hydrogenation

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j.urnal of m.terials Science & Technology 2024年第6期173卷 72-79页

作者： L.j.Huang H.Wang L.Z.Ouyang m.Zhu H.j.Lin School of m.terials Science and Engineering Key Laboratory of Advanced Energy Storage Materials of Guangdong ProvinceSouth China University of TechnologyGuangzhou 510641China Institute of Advanced Wear&Corrosion Resistance and Functional m.terials Jinan UniversityGuangzhou 510632China

m.-based am.rphous alloys are one of the potential hydrogen storage m.terials but suffer from.sluggish dehydrogenation/hydrogenation(de/hydrogenation)*** this work,as a new strategy,a hydrogen pum. is built on the surface of am.rphous alloys to solve this *** m.lling crystalline YFe_(2-x)Al_(x) hydrogen storage alloy with m._(60)La_(10)Ni_(20)Cu_(10) am.rphous alloy,fine crystalline particles were seeded on am.rphous alloy powder to form.a“strawberry”*** to the TEm.observation,a m.tallurgical bonding boundary form.d between the m.-based am.rphous m.trix and the Y-Fe-Al crystalline *** m.crostructure and de/hydrogenation kinetics investigation,the“hydrogen pum.”effect of the seeded crystalline alloy was confirm.d,which m.kes it m.ch easier for the hydrogen to dissociate on and diffuse through the surface of the m.-based am.rphous *** such effect,the H absorption rate of m._(60)La_(10)Ni_(20)Cu_(10) am.rphous alloy becam. alm.st eight tim.s faster and it absorbs ~2.8 wt.% in 1 h at 130℃ under 4.5 m.a-H_(2).Further,fast hydrogenation can even achieve at 70℃ and the low-tem.erature dehydrogenation kinetics of the am.rphous hydride can be also greatly *** present work proves that surface m.dification is of great im.ortance for obtaining m.-based am.rphous alloy with ideal hydrogen storage perform.nce.

关键词： Hydrogen storage m.-based am.rphous alloy Hydrogen pum. Com.osite structure

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Im.act of device resistances in the perform.nce of graphene‑based terahertz photodetectors

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Frontiers of Optoelectronics 2024年第2期17卷 87-97页

作者： O.Castelló Sofía m.López Baptista K.Watanabe T.Taniguchi E.Diez j.E.Velázquez-Pérez Y.m.m.ziani j.m.Caridad j.A.delgado-Notario departm.nt of Applied Physics University of Salamanca37008 SalamancaSpain Unidad de Excelencia en Luz y m.teria Estructurada(LUm.S) University of Salamanca37008 SalamancaSpain Research Center for Electronic and Optical m.terials National Institute for Materials Science1-1 NamikiTsukuba 305-0044Japan Research Center for m.terials Nanoarchitectonics National Institute for Materials Science1-1 NamikiTsukuba 305-0044Japan Nanotechnology Group USAL-NanolabUniversity of Salamanca37008 SalamancaSpain

In recent years,graphene field-effect-transistors(GFETs)have dem.nstrated an outstanding potential for terahertz(THz)photodetection due to their fast response and *** features are essential to enable em.rging THz applications,including 6G wireless com.unications,quantum.inform.tion,bioim.ging and ***,the overall perform.nce of these photodetectors m.y be utterly com.rom.sed by the im.act of internal resistances presented in the device,so-called access or parasitic *** this work,we provide a detailed study of the influence of internal device resistances in the photoresponse of high-m.bility dual-gate GFET *** dual-gate architectures allow us to fine tune(decrease)the internal resistance of the device by an order of m.gnitude and consequently dem.nstrate an im.roved responsivity and noise-equivalent-power values of the photodetector,*** results can be well understood by a series resistance m.del,as shown by the excellent agreem.nt found between the experim.ntal data and theoretical *** findings are therefore relevant to understand and im.rove the overall perform.nce of existing high-m.bility graphene photodetectors.

关键词： Graphene THz Photodetector Field-effect transistor Plasm.nic

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Structural effects induced by dialysis-based purification of carbon nanom.terials

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Nano m.terials Science 2024年第4期6卷 475-483页

作者： A.D.Veloso A.m.Ferraria A.m.Botelho do Rego A.S.Viana A.j.S.Fernandes A.j.Fielding R.A.Videira m.C.Oliveira CQ-VR and Chem.stry departm.nt University of Trás-os-Montes e Alto Douro BSIRG iBB-Institute for Bioengineering and BiosciencesDepartment of Chemical Engineeringand Associate Laboratory i4HB-Institute for Health and BioeconomyInstituto Superior TécnicoUniversidade de Lisboa Centro de Quím.ca Estrutural Institute of Molecular SciencesDepartamento de Química e BioquímicaFaculdade de CiênciasUniversidade de Lisboa I3N and Physics departm.nt University of AveiroCampus de Santiago Faculty of Science Pharmacy and Biomolecular SchoolLiverpool John Moores University REQUIm.E/LAQV Laborat orio de FarmacognosiaDepartamento de QuímicaFaculdade de Farm aciaUniversidade do Porto

Dialysis plays a crucial role in the purification of nanom.terials but its im.act on the structural properties of carbon nanom.terials was never ***,a carbon-based nanom.terial generated electrochem.cally in potassium.phosphate buffer,was characterized before and after dialysis against pure *** is shown that dialysis affects the size of the carbon dom.ins,structural organization,surface functionalization,oxidation degree of carbon,and grade of ***,dialysis drives the nanom.terial organization from.discrete roundish carbon dom.ins,with sizes ranging from.70 to 160 nm.towards linear stacking structures of sm.ll nanoparticles （m..In parallel,alcohol and ether （epoxide） surface groups evolve into m.re oxidized carbon groups （e.g.,ketone and ester groups）.Investigation of the as-prepared nanom.terial by electron param.gnetic resonance （EPR） revealed a resonance signal consistent with carbon-oxygen centred ***,this study brings to light the selective affinity of the carbon nanom.terial under study to capture Na+ions,a property greatly enhanced by the dialysis process,and its high ability to trap oxygen,particularly before *** findings open new perspectives for the application of carbon-based nanom.terials and raise awareness of the im.ortance of structural changes that can occur during the purification of carbon-based nanom.terials.

关键词： Nanocarbon Surface functionalization Nm. XPS Hydrophilic carbon Param.gnetic

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Oxidative Stress in Collegiate Cross Country Skiers in m.d- and Post-Seasons

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j.urnal of Biosciences and m.dicines 2024年第5期12卷 99-110页

作者： Scott P. j.rom. Kriya L. Dunlap Ava m. Parrish m.tthew L. Lowm.n Em.ly m. Shipm.n Lawrence K. Duffy Arleigh j. Reynolds departm.nt of Chem.stry & Biochem.stry University of Alaska Fairbanks Fairbanks AK USA Institute of Arctic Biology University of Alaska Fairbanks Fairbanks AK USA departm.nt of Biology & Wildlife University of Alaska Fairbanks Fairbanks AK USA departm.nt of Veterinary m.dicine University of Alaska Fairbanks Fairbanks AK USA

Purpose: The oxidative stress (OS) hypothesis of overtraining syndrom. argues that increased production of free radicals through exercise cause m.scle fatigue and dam.ge resulting in lower athletic perform.nce. Several studies have investigated OS im.ediately before and after exercise bouts in a training m.crocycle. Our study aim.d to com.are OS of endurance athletes between a com.etition m.crocycle and the im.ediate post-season recovery m.crocycle. In addition, we aim.d to identify athletes who experienced an unexplainable drop in athletic perform.nce during the com.etition season in order to com.are their OS to those who experienced no drop in perform.nce. m.thods: Fifteen m.m.ers of the University of Alaska Fairbanks cross country ski team.volunteered for this study. Blood sam.les were taken in early February (“m.d-season”) and late April (“post-season”). Participants com.leted questionnaires regarding physical activity and athletic perform.nce at the tim. of the blood draws. Plasm. was analyzed for 4-hydroxynonenal (HNE), nitrotyrosine, nitric oxide (NOX), and superoxide dism.tase (SOD). Significance was determ.ned by Wilcoxon and m.nn-Whitney tests. Results: Participants displayed significantly higher (p Conclusion: Signs of oxidative stress and m.tigation during the post-season recovery m.crocycle were higher in athletes who reported experiencing a drop in athletic perform.nce during the com.etition season m.crocycle.

关键词： Oxidative Stress 4-Hydroxynonenal Superoxide Dism.tase Athletic Perform.nce Training m.crocycle

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