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| 1 | 环境温度和日粮锰对肉种鸡产蛋性能、蛋品质和血浆生化指标的影响显示文摘本试验旨在研究环境温度和日粮锰对肉种鸡产蛋性能、蛋品质和血浆生化指标的影响。试验采用双因素完全随机设计,包括2个环境温度(一个正常温度,21±1°C;一个高温,32±1°C)和3个不同的饲粮锰处理(在玉米-豆粕型基础日粮中添加0 mg/kg的锰、120 mg/kg的锰(来源分别为Mn SO4·H2O和蛋白锰)。因此,试验共6个处理组,每个组6个重复,每个重复4只鸡。结果表明高温降低了蛋重(P<0.0001)、产蛋率(P<0.0001)、产蛋量(P<0.0001)、采食量(P<0.0001)、饲料转化率(P<0.0001)、蛋壳强度(P<0.05)和蛋壳厚度(P<0.0001)、血浆三碘甲状腺氨酸水平(P<0.05)、碱性磷酸酶活性(P<0.04);提高了直肠温度(P<0.0001)、血浆丙二醛水平(P<0.02)、乳酸脱氢酶(P<0.002)、天冬氨酸转氨酶和肌酸激酶的活性。与不添加锰的饲粮相比,无论添加有机锰还是无机锰都增强了肉种鸡的蛋壳强度(P<0.05),降低了血浆三碘甲状腺氨酸和蛋白质羰基含量(P≤0.05)。与不添加锰的饲粮相比,饲喂添加有机锰日粮的肉种鸡的蛋壳厚度增加(P<0.01)。环境温度和饲粮锰在产蛋率、产蛋量、采食量和饲料转化率有相互作用(P<0.05)。在正常温度下,日粮无机锰或有机锰对产蛋率、产蛋量、采食量和饲料转化率不产生影响。然而,在高温情况下,饲喂有机锰日粮提高了肉种鸡产蛋率、产蛋量、采食量和饲料转化率(P<0.03)。本试验的结果表明:在32-45周龄,高温显著降低了产蛋性能、蛋壳质量,并诱导脂质过氧化反应和组织损伤。而日粮中添加有机锰或无机锰可以增加蛋壳强度和肉种鸡耐热性,并减少了蛋白质的氧化。综上,有机锰可以减轻高温对肉种鸡产蛋性能的负面影响。 | 樊倩 Y.W.Zhu J.J.Xie W.X.Li L.Lu L.Y.Zhang C.Ji X.Lin H.C.Liu J.Odle X.G.Luo | 2015 | 广东饲料2015,24,8: | 7 |
| 2 | Microstructure evolution and mechanical properties at high temperature of selective laser melted AlSi10Mg显示文摘In this study,the microstructure and tensile properties of selective laser melted AlSilOMg at elevated temperature were investigated with focus on the interfacial region.In-situ SEM and in-situ EBSD analysis were proposed to characterize the microstructural evolution with temperature.The as-fabricated AlSilOMg sample presents high tensile strength with the ultimate tensile strength(UTS)of~450 MPa and yield strength(YS)of~300 MPa,which results from the mixed strengthening mechanism among grain boundary,solid solution,dislocation and Orowan looping mechanism.When holding at the temperature below 200℃for 30 min,the micro structure presents little change,and only a slight decrement of yield strength appears due to the relief of the residual stress.However,when the holding temperature further increases to 300℃and 400℃,the coarsening and precipitation of Si particles inα-Al matrix occur obviously,which leads to an obvious decrease of solid solution strength.At the same time,matrix softening and the weakness of dislocation strengthening also play important roles.When the holding temperature reaches to 400℃,the yield strength decreases significantly to about 25 MPa which is very similar to the as-cast Al alloy.This might be concluded that the YS is dominated by the matrix materials.Because the softening mechanism counteracts work hardening,the extremely high elongation occurs. | Y.Cao X.Lin Q.Z.Wang S.Q.Shi L.Ma N.Kang W.D.Huang | 2021 | Journal of Materials Science & Technology2021,,3: | 4 |
| 3 | Microstructural features of Ti-6Al-4V manufactured via high power laser directed energy deposition under low-cycle fatigue显示文摘Laser additive manufacturing(LAM)technique has unique advantages in producing geometrically complex metallic components.However,the poor low-cycle fatigue property(LCF)of LAM parts restricts its widely used.Here,the microstructural features of a Ti-6 Al-4 V alloy manufactured via high power laser directed energy deposition subjected to low-cycle fatigue loading were studied.Before fatigue loading,the microstructure of the as-deposited parts was found to exhibit a non-homogeneous distribution of columnar prior-βgrains(200-4000μm)at various scanning velocities(300-1500 mm/min)and relatively coarseα-laths(1.0-4.5μm).Under cyclic loading,fatigue microcracks typically initiated within the alignedαphases in the preferred orientation(45°to the loading direction)at the surface of the fatigue specimens.Fatigued Ti-6 Al-4 V exhibited a single straight dislocation character at low strain amplitudes(<0.65%)and dislocation dipoles or even tangled dislocations at high strain amplitudes(>1.1%).In addition,dislocation substructure features,such as dislocation walls,stacking faults,and dislocation networks,were also observed.These findings may provide opportunities to understand the fatigue failure mechanism of additive manufactured titanium parts. | Y.M.Ren X.Lin H.O.Yang H.Tan J.Chen Z.Y.Jian J.Q.Li W.D.Huang | 2021 | Journal of Materials Science & Technology2021,,24: | 3 |
| 4 | 查看详情显示文摘 | Z.T.Deng H.Lin W.Ji L.Gao X.Lin Z.H.Cheng X.B.He J.L.Lu D.X.Shi W.A.Hofer and H.J.Gao | | 0,,15: | 1 |
| 5 | Tools for privacy preserving distributed data mining显示文摘 | C.Clifton M.Kantarcioglu J.Vaidya X.Lin M.Y.Zhu | | 0,,02: | 1 |
| 6 | Recent experimental progress of fractional quantum Hall effect: 5/2 illing state and graphene显示文摘The phenomenon of fractional quantum Hall efect(FQHE)was irst experimentally observed 33 years ago.FQHE involves strong Coulomb interactions and correlations among the electrons,which leads to quasiparticles with fractional elementary charge.hree decades later,the ield of FQHE is still active with new discoveries and new technical developments.A signiicant portion of atention in FQHE has been dedicated to illing factor 5/2 state,for its unusual even denominator and possible application in topological quantum computation.Traditionally,FQHE has been observed in high-mobility Ga As heterostructure,but new materials such as graphene also open up a new area for FQHE.his review focuses on recent progress of FQHE at 5/2 state and FQHE in graphene. | X.Lin R.R.Du X.C.Xie | 2014 | National Science Review2014,1,4: | 1 |
| 7 | Probabilistic data association techniques for target tracking with applications to sonar,radar and EO sensors显示文摘 | Y.Bar-shalom T.Kirubarajan X.Lin | | 0,,08: | 1 |
| 8 | Synthesis of Novel Nickel Sulfide Submicrometer Hollow Spheres显示文摘 | J.Chen X.Lin X.Li | 2003 | Adv Mater2003,,9: | 1 |
| 9 | High strength Al-Cu-Mg based alloy with synchronous improved tensile properties and hot-cracking resistance suitable for laser powder b e d fusion显示文摘In present work,a novel crack-free Al-Cu-Mg-Si-Ti alloy with synchronous improved tensile properties and hot-cracking resistance was proposed and successfully manufactured by laser powder bed fusion(LPBF).The microstructure evolution behaviors and the corresponding strengthening mechanisms were investigated in detail.The LPBF-processed Al-Cu-Mg-Si-Ti alloy presents a heterogeneous microstructure consisting of ultrafine equiaxed grains(UFGs)at the boundary and coarse columnar grains(CGs)at the center of the single molten pool.Pre-precipitated D022-Al 3 Ti particles were found to act as the nuclei to refine the grains at the boundary of the molten pool during solidification process,which is attributed to the low cooling rate providing the sufficient incubation time for the precipitation of D022-Al 3 Ti.There are two orientation relationships(ORs)betweenα-Al and D022-Al 3 Ti,i.e.[001]α-Al//[001]D022-Al3Ti,(200)α-Al//(200)D022-Al3Ti and[1¯1¯2]α-Al//[¯111]D022-Al3Ti,(1¯11)α-Al//(¯11¯2)D022-Al3Ti,which are two of the eight ORs predicted with the E2EM model.Refined grains in present alloy,no matter for UFGs or CG,exhibited high critical hot-cracking stress,which means a strong hot-cracking resistance.Dual-nanoprecipitation of Cu-,Mg-,and Si-rich Q’and S’phases was introduced to enhance the mechanical performance ofα-Al matrix.The as-built sample exhibits superior tensile properties,with the yield strength(YS)of 473±8 MPa,ultimate tensile strength(UTS)of 541±2 MPa and elongation(EI)of 10.9%±1.2%. | Q.Z.Wang N.Kang X.Lin M.EL Mansori W.D.Huang | 2023 | Journal of Materials Science & Technology2023,,10: | 0 |
| 10 | Clinicopathological and oncological significance of persistent prostate-specific antigen after radical prostatectomy:A systematic review and meta-analysis显示文摘Objective:To investigate the association of persistently elevated prostate-specific antigen(PSA)after radical prostatectomy(RP)with clinicopathological features and long-term oncological prognosis for the development of a potential management strategy.Methods:A systematic literature search was performed using PubMed and Web of Science up to June 2021 to identify the eligible studies focusing on understanding the impact of persistent PSA in patients who underwent RP for localized prostate cancer.Meta-analyses were performed on parameters with available information.Results:A total of 32 RP studies were identified,of which 11 included 26719 patients with consecutive cohorts and the remaining 21 comprised 24177 patients with cohorts carrying specific restrictions.Of the 11 studies with consecutive cohorts,the incidence of persistent PSA varied between 3.1%and 34.6%with a median of 11.0%.Meta-analyses revealed patients with persistent PSA consistently showed unfavorable clinicopathological features and a more than 3.5-fold risk of poorer biochemical recurrence,metastasis,and prostate cancer-specific mortality prognosis independently,when compared to patients with undetectable PSA.Similarly,cases with persistent PSA in different specific patient cohorts with a higher risk of prostate cancer also showed a trend of worse outcomes.Conclusion:We found that the frequency of persistent PSA was about 11.0%in consecutive RP cohorts.Persistent PSA was significantly associated with unfavorable clinicopathological characteristics and worse oncological outcomes.Patients with persistent PSA after RP may benefit from early salvage treatment to delay or prevent biochemical recurrence,improving oncological outcomes for these patients.Further prospective randomized controlled trials are warranted to understand optimal systemic therapy in these patients. | Shulin Wu Sharron X.Lin Kristine M.Cornejo Rory K.Crotty Michael L.Blute Douglas M.Dahl Chin-Lee Wu | 2023 | Asian Journal of Urology2023,10,3: | 0 |
| 11 | CELLULAR SPACING SELECTION OF Al-0.53wt%Zn ALLOY UNDER NEAR-RAPID DIRECTIONAL SOLIDIFICATION CONDITION显示文摘In order to investigate the response of cellular spacing to the variation of growth velocity under near-rapid directional solidification condition, Al-0.53wt%Zn alloy is directionally solidified with Bridgman apparatus. The results show that at the given temperature gradient the obtained microstrvctures are all cells and there exists a wide distribution range of cellular spacing. The maximum, λmax, minimum, λmin, and average cellular spacing, λ, as functions of growth rate, V, can be given by λmax=948.51V-0.4961, λmin= 661.16V-0.5015 and λ=412.41V-0.5049, respectively. The experimental results are compared with that predicted by KGT model, and a good agreement is found. Moreover,it is found that the average cellular spacing is also remarkably history-dependent. | J.Feng W.D.Huang X.Lin T.Li Y.F.Xue Y.H.Zhou | 1998 | Acta Metallurgica Sinica(English Letters)1998,11,5: | 0 |
| 12 | What Does the Trademark 'Peter Rabbit' Protect:Revelation from the Judgement by the US Court and Trademark Trial and Appeal Board over Twenty Years Ago显示文摘'The series of Peter Rabbit's Stores was written and illustrated by American woman writer Beatrix Potter. ' | Chris X.Lin | 2003 | China's Foreign Trade2003,,12: | 0 |