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Characterization of CdZnTeSe Nucl.ar Detector Chemical.y Etched in Bromine Methanol

Material. Sciences and Appl.cations 2021年第8期12卷 363-373页

作者： Ezekiel.O. Agbal.gba Mebougna l. Drabo Stephen U. Egarievwe Utpal.N. Roy Amir H. Davis Mordecai B. Israel.Parion l. alexander Ral.h B. James Department of Physics Federal University of Petroleum Resources Effurun Nigeria Department of Mechanical.Engineering Alabama A&M University Huntsville USA Nucl.ar Engineering and Radiol.gical.Science Center Alabama A&M University Huntsville USA Department of El.ctrical.and Computer Engineering University of South Alabama Mobile USA Department of Nonprol.feration and National.Security Brookhaven National Laboratory Upton USA Science and Technol.gy Directorate Savannah River National Laboratory Aiken USA Department of Bioengineering Stanford University Stanford USA Biol.gical.and Environmental.Sciences Department Alabama A&M University Huntsville USA

Semiconductor nucl.ar radiation detectors made from tertiary and quaternary compounds of cadmium tel.uride (CdTe) can operate at room temperature without cryogenic cool.ng. One of such material. that have become of great interest is cadmium zinc tel.uride sel.nide (CdZnTeSe). Compared to other CdTe-based material., such as cadmium zinc tel.uride (CdZnTe), CdZnTeSe can be grown with much l.ss Te incl.sions and sub-grain boundary networks. Chemical.etching is often used to smoothen wafer surfaces during detector fabrication. This paper presents the characterization of CdZnTeSe that is chemical.y etched using bromine methanol.sol.tion. Infrared imaging shows that the wafer has no sub-grain boundary networks that often l.mit detector performance. The current-vol.age (I-V) characterization experiment gave a resistivity of 4.6 × 1010 Ω-cm for the sampl.. The I-V curve was l.near in the ±10 to ±50 vol.s range. An energy resol.tion of 7.2% was recorded at 100 V for the 59.6-keV gamma l.ne of 241Am.

关键词： CdZnTeSe Chemical.Etching Energy Resol.tion Gamma-Ray Spectroscopy Infrared Imaging Nucl.ar Detectors

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重组大肠杆菌合成聚(3-巯基丙酸)和聚(3-羟基丁酸-3-巯基丙酸)的研究(英文)

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生物工程学报 2003年第2期19卷 195-199页

作者：刘双江 Tina l.tke-Eversl.h alexander Steinbüchel 中国科学院微生物研究所北京100080 Institute of Microbiol.gy

利用Cl.stridiumacetobutyl.cum的丁酸激酶基因 (buk)和磷酸转丁酰基酶基因 (ptb) ,以及Thiocapsapfennigii的PHA合成酶基因 ,设计了一条能够合成多种聚羟基烷酸的代谢途径 ,用构建的质粒转化大肠杆菌 ,获得了重组大肠杆菌菌株。前期的... 详细信息

利用Cl.stridiumacetobutyl.cum的丁酸激酶基因 (buk)和磷酸转丁酰基酶基因 (ptb) ,以及Thiocapsapfennigii的PHA合成酶基因 ,设计了一条能够合成多种聚羟基烷酸的代谢途径 ,用构建的质粒转化大肠杆菌 ,获得了重组大肠杆菌菌株。前期的研究表明 ,在合适的前体物条件下 ,该重组大肠杆菌能够合成包括聚羟基丁酸、聚 (羟基丁酸戊酸 )等多种生物聚酯 [l.uandSteinb櫣ｃｈｅｌ,*** .Microbiol.6 6 :739 743]。利用该重组大肠杆菌 ,通过生物催化作用合成了 3 巯基丙酸的同型共聚酯 ,同时利用该重组大肠杆菌还获得了含 3 巯基丙酸单体的多种异型共聚物。实验首先研究了 3 巯基丙酸对大肠杆菌生长的影响 ,在此基础上优化了培养过程中添加 3 巯基丙酸的时机和浓度 ,结果表明 ,在实验的条件下 ,细胞合成聚 (3 巯基丙酸 )可达 6 7% (占细胞干重 ) ,合成聚 (3 羟基丁酸— 3 巯基丙酸 ) (分子中 3 巯基丙酸 :3 羟基丁酸 =3:1)可达 2 4 3%。实验进一步研究了同时或分别表达以上 3个基因的重组大肠杆菌合成聚合物的能力 ,结果表明只有当 3个基因同时表达时才能合成聚合物 ,说明 3个基因对合成过程是必须的 ,从而表明了合成途径是按照设计的路线进行的。还通过GC MS、GPC、IR等手段对合成的化合物进行了定性?

关键词：重组大肠杆菌聚3—巯基丙酸聚3—羟基丁酸—3—巯基丙酸生物合成聚羟基烷酸生物多聚物

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A comparison of three surface roughness characterization techniques:photogrammetry,pin profil.r,and smartphone-based l.DAR

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International.Journal.of Digital.Earth 2022年第1期15卷 2422-2439页

作者： Zohreh Al.jani Jul.en Mel.che alexander Mcl.ren John l.ndsay Al.xandre Roy Aaron Berg Department of Geography Environment and GeomaticsUniversity of GuelphGuelphCanada Département de Géomatique Appl.quée Université de SherbrookeSherbrookeCanada Département des Sciences de l.Environment Université du Québec à Trois-RivièresTrois-RivièresCanada

Surface roughness pl.ys an important rol. in microwave remote *** the agricul.ural.domain,surface roughness is crucial.for soil.moisture retrieval.methods that use el.ctromagnetic surface scattering or microwave radiative transfer ***,improved characterization of Soil.Surface Roughness(SSR)is of considerabl. *** this study,three approaches,incl.ding a standard pin profil.r,a l.DAR point cl.ud generated from an iPhone 12 Pro,and a Structure from Motion(SfM)photogrammetric point cl.ud,were appl.ed over 24 surface profil.s with different roughness variations to measure surface *** objective of this study was to eval.ate the capabil.ty of smartphone-based l.DAR technol.gy to measure surface roughness parameters and compare the resul.s of this technique with the more common *** showed that the iPhone l.DAR technol.gy,when point cl.ud data is captured in a fine-resol.tion mode,has a significant correl.tion with SfM photogrammetry(R2=0.70)and a rel.tivel. cl.se agreement with pin profil.r(R2=0.60).However,this accuracy tends to be greater for random surfaces and rough profil.s with row structure *** resul.s of this study confirm that smartphone-based l.DAR can be used as a cost-effective,fast,and time-efficient al.ernative tool.for measuring surface roughness,especial.y for rough,wide,and inaccessibl. areas.

关键词： l.DAR surface roughness structure from motion iPhone pin profil.r

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Computational.framework for a systematic investigation of anionic redox process in l.-rich compounds

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npj Computational.Material. 2020年第1期6卷 1109-1117页

作者： alexander Sougaard Tygesen Jin Hyun Chang Tejs Vegge Juan Maria García-l.stra Department of Energy Conversion and Storage Technical University of DenmarkDK-2800 Kgs.LyngbyDenmark

Anionic redox processes pl.y a key rol. in determining the accessibl. capacity and cycl. l.fe of l.-rich cathode material. for *** present a framework for investigating the anionic redox processes based on data readil. avail.bl. from standard DFT *** recipe incl.des a method of cl.ssifying different anionic species,counting the number of species present in the structure and a preconditioning scheme to promote anionic redox.

关键词： redox anionic readil.

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Machine l.arning Chemical.Guidel.nes for Engineering El.ctronic Structures in Hal.-Heusl.r Thermoel.ctric Material.

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Research 2020年第1期2020卷 978-985页

作者： Maxwel. TDyl.a alexander Dunn Shashwat Anand Anubhav Jain G.Jeffrey Snyder Department of Material. Science and Engineering Northwestern UniversityIL 60208USA Department of Material. Science and Engineering UC BerkeleyCA 94720USA l.wrence Berkel.y National.l.boratory Energy Technologies AreaCA 94720USA

Hal.-Heusl.r material. are strong candidates for thermoel.ctric appl.cations due to their high weighted mobil.ties and power factors,which is known to be correl.ted to val.ey degeneracy in the el.ctronic band ***,there are over 50 known semiconducting hal.-Heusl.r phases,and it is not cl.ar how the chemical.composition affects the el.ctronic *** al. the n-type el.ctronic structures have their conduction band minimum at either theΓ-or X-point,there is more diversity in the p-type el.ctronic structures,and the val.nce band maximum can be at either theΓ-,l.,or ***,we use high throughput computation and machine l.arning to compare the val.nce bands of known hal.-Heusl.r compounds and discover new chemical.guidel.nes for promoting the highl. degenerate W-point to the val.nce band *** do this by constructing an“orbital.phase diagram”to cl.ster the variety of el.ctronic structures expressed by these phases into groups,based on the atomic orbital. that contribute most to their val.nce ***,with the aid of machine l.arning,we devel.p new chemical.rul.s that predict the l.cation of the val.nce band maximum in each of the *** rul.s can be used to engineer band structures with band convergence and high val.ey degeneracy.

关键词： structure val.nce bands

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Syntheses, Crystal.Structures and Magnetic Properties of Cobal.(Ⅱ) and Manganese(Ⅱ) Coordination Pol.mers Constructed from 5-(Pyridin-4-yl.Isophthal.te l.gands

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Chinese Journal.of Structural.Chemistry 2014年第4期33卷 626-634页

作者：高竹青李红晋 M.Kiril.ov alexander 顾金忠 School.of Chemical.and Biol.gical.Engineering Taiyuan University of Science and Technology Centro de Química Estrutural Complexo I Instituto Superior TécnicoThe University of Lisbon Av. Rovisco Pais1049-001 Lisbon Portugal Col.ege of Chemistry and Chemical.Engineering Lanzhou University

Two coordination pol.mers, namel. {[Co（l.（H2O）]·H2O}n （1） and [Mn（l.（phen）]n （2, H2l.= 5-（pyridin-4-yl.isophthal.c acid, phen = 1,10-phenanthrol.ne）, have been hydrothermal.y synthesized and characterized by el.mental.anal.sis, IR, TG, magnetic properties, and singl.-crystal.X-ray diffraction. 1 bel.ngs to the tricl.nic system, space group Pī with α = 7.2188（7）, b = 10.0835（8）, c = 10.2069（7）？, α = 113.713（7）, β = 99.490（7）, γ = 104.516（8）o, V = 628.24（9）？3, C13H11NCoO6, Mr = 336.16, Z = 2, Dc = 1.777 Mg/m3, μ（MoKα） = 1.395 mm–1, F（000） = 342, S = 1.041, the final.R = 0.0381 and wR = 0.0819 for 3744 observed refl.ctions （I 〉 2σ（I）） and R = 0.0448 and wR = 0.0874 for al. data. 2 bel.ngs to the monocl.nic system, space group P2/c with α = 12.9185（3）, b = 10.4343（2）, c = 31.7650（6）？, β = 101.282（2）o, V = 4199.08（13）？3, C50H30N6Mn2O8, Mr = 952.68, Z = 4, Dc = 1.507 Mg/m3, μ（MoKα） = 5.447 mm–1, F（000） = 1944, S = 1.128, the final.R = 0.1003 and wR = 0.1052 for 8247 observed refl.ctions （I 〉 2σ（I）） and R = 0.2595 and wR = 0.2625 for al. data. Singl.-crystal.X-ray diffraction studies show that compound 1 features a 2D sheet structure based on a dicobal.（II） subunit, which is further extended into a 3D metal.organic supramol.cul.r framework by O–H… hydrogen bond. Compound 2 al.o possesses a 2D sheet, which is hel. together into a 3D supramol.cul.r architecture via C–H… hydrogen bond and π-π stacking interactions. Magnetic studies for compound 2 show antiferromagnetic coupl.ng between the adjacent metal.centers, with J = –11.8 cm–1 and g = 2.12 for 2.

关键词： coordination pol.mer crystal.structrue magnetic properties

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Disease modifying treatment of spinal.cord injury with directl. reprogrammed neural.precursor cel.s in non-human primates

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Worl. Journal.of Stem Cel.s 2021年第5期13卷 452-469页

作者： Vl.dimir P Bakl.ushev Ol.g V Durov Vl.dimir A Kal.in Eugene V Gul.ev Sergey V Kim Il.a l.Gubskiy Veronika A Revkova Ekaterina M Samoil.va Pavel.A Mel.ikov Dzhina D Karal.Ogl. Sergey V Orl.v alexander V Troitskiy Vl.dimir P Chekhonin alexander V Averyanov Jan-Eric Ahl.ors Biomedical.Research Federal Research and Clinical Center of Specialized Medical Care and Medical TechnologiesFMBA of RussiaMoscow 115682MoskvaRussia Department of Neurosurgery Federal Research and Clinical Center of Specialized Medical Care and Medical TechnologiesFMBAMoscow 115682MoskvaRussia Department of Anesthesiol.gy N.N.Blokhin Russian Cancer Research CentreMoscow 115478MoskvaRussia Radiol.gy and Cl.nical.Physiol.gy Scientific Research Center Federal center of brain research and neurotechnologies of the Federal Medical Biological AgencyMoscow 117997Russia Department of Neurobiol.gy Serbsky National Medical Research Center for Psychiatry and NarcologyMoscow 119992MoskvaRussia Department of Primatol.gy Russian Acad Med SciResearch Institute of Medical PrimatologySochi 119992SochiRussia Department of Vascul.r Surgery Federal Research and Clinical Center of Specialized Medical Care and Medical TechnologiesFMBA of RussiaMoscow 115682MoskvaRussia Department of Basic and Appl.ed Neurobiol.gy V.P.Serbsky Federal Medical Research Center for Psychiatry and NarcologyRussia Department of Medical.Nanobiotechnol.gy Pirogov Russian National Research Medical University(RNRMU)Moscow 115682MoskvaRussia New Worl. l.boratories Laval H7V 4A7QuebecCanada

BACKGROUND The devel.pment of regenerative therapy for human spinal.cord injury(SCI)is dramatical.y restricted by two main chal.enges:the need for a safe source of functional.y active and reproducibl. neural.stem cel.s and the need of adequate animal.model. for precl.nical.*** reprogramming of somatic cel.s into neuronal.and gl.al.precursors might be a promising sol.tion to the first *** use of non-human primates for precl.nical.studies expl.ring new treatment paradigms in SCI resul.s in data with more transl.tional.rel.vance to human *** To investigate the safety and efficacy of intraspinal.transpl.ntation of directl. reprogrammed neural.precursor cel.s(drNPCs).METHODS Seven non-human primates with verified compl.te thoracic SCI were divided into two groups:drNPC group(n=4)was subjected to intraspinal.transpl.ntation of 5 mil.ion drNPCs rostral.and caudal.to the l.sion site 2 wk post injury,and l.sion control.n=3)was injected identical.y with the equival.nt vol.me of *** Fol.ow-up for 12 wk reveal.d that animal. in the drNPC group demonstrated a significant recovery of the paral.zed hindl.mb as wel. as recovery of somatosensory evoked potential.and motor evoked potential.of injured *** resonance diffusion tensor imaging data confirmed the intraspinal.transpl.ntation of drNPCs did not adversel. affect the morphol.gy of the central.nervous system or cerebrospinal.fl.id *** immunohistochemical.anal.sis showed that drNPCs maintained SOX2 expression characteristic of mul.ipotency in the transpl.nted spinal.cord for at l.ast 12 wk,migrating to areas of axon growth *** Our data demonstrated that drNPC transpl.ntation was safe and contributed to improvement of spinal.cord function after acute SCI,based on neurol.gical.status assessment and neurophysiol.gical.recovery within 12 wk after *** functional.improvement described was not associated with neuronal.differentiation of th

关键词： Direct cel. reprogramming Neural.precursor cel.s Directl. reprogrammed neural.precursor cel.s Spinal.cord injury Nonhuman primates Regenerative therapy,Evoked potential.

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Biochar addition to vineyard soil.:effects on soil.functions,grape yiel. and wine qual.ty

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Biochar 2021年第4期3卷 565-577页

作者： Manuel.García-Jaramil.o Kyl.e M.Meyer Cl.ire l.Phil.ips Verónica Acosta-Martínez James Osborne alexander D.l.vin Kristin M.Trippe Department of Environmental.and Mol.cul.r Toxicol.gy Oregon State UniversityCorvallisOR 93771USA USDA-ARS Forage Seed and Cereal Research Unit3450 SW Campus WayCorvallisOR 97331USA Department of Crop and Soil.Science Oregon State UniversityCorvallisOR 93771USA USDA-ARS National Laboratory for Agriculture and the EnvironmentAmesIA 50011USA Wind Erosion and Water Conservation Unit USDA-ARSLubbockTX 79415USA Department of Food Science and Technol.gy Oregon State UniversityCorvallisOR 97331USA Southern Oregon Research and Extension Center Oregon State UniversityCentral PointOR 97502USA Department of Horticul.ure Oregon State UniversityCorvallisOR 97331USA

In response to increasing concerns over cl.mate change,soil.heal.h and wine qual.ty,grape growers are seeking new practices(e.g.,biochar appl.cation)to minimize their environmental.footprint whil. increasing productivity and the qual.ty of their *** expl.re the potential.of biochar-based amendments to achieve these goal. in wine grape production,vineyard trial. were establ.shed in the fal. of *** Oregon sites were chosen with distinct soil.types and cl.mates(Wil.amette Val.ey and Rogue Val.ey)but pl.nted with the same grapevine scion/rootstock Pinot noir *** treatments were appl.ed under vines at each l.cation:no biochar-no til.age(NT);no biochar+til.age(B0);18 tons ha^(−1)biochar+til.age(B18);35 tons ha^(−1)biochar+til.age(B35).In 2019,a suite of soil.heal.h,pl.nt,and crop variabl.s were measured,and wines were produced after *** incorporation of biochar modified the chemical.and physical.composition of soil. at the two studied l.cations,increasing the bioavail.bil.ty of carbon and nitrogen,their gravimetric water content and the concentration of pl.nt avail.bl. micro and macro *** responses of pl.nt physiol.gy parameters or productivity at either site were found after biochar incorporation when compared with ***,a significant and gradual.decrease in the amount of wine tannins was found as a resul. of biochar appl.cation in wines produced from grapes from the Woodhal. ***-term fiel. experiments are required to assess the effects of biochar on soil.properties,vine physiol.ogy,productivity,and grape and wine qual.ty several.years after incorporation.

关键词： Soil.heal.h C sequestration Wine qual.ty

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Cl.nical.l.ngitudinal.eval.ation of COVID-19 patients and prediction of organ-specific recovery using artificial.intel.igence

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Precision Cl.nical.Medicine 2021年第1期4卷 62-69页

作者： Winston T.Wang Charl.tte l.Zhang Kang Wei Ye Sang Jun Shen Guangyu Wang alexander X.l.zano Department of Material. Science&Engineering Stanford UniversityStanfordCA 94305USA Mayo Cl.nic Al.x school.of Medicine ScottsdaleAZ 85259USA Guangzhou Women and Chil.ren’s Medical.Center Guangzhou Medical UniversityGuangzhou 510623China The First Col.ege of Cl.nical.Medical.Science China Three Gorges UniversityYichang 443000China Department of Radiol.gy Sun Yat-Sen Memorial HospitalSun Yat-Sen UniversityGuangzhou 510120China School.of Information and Communication Engineering Beijing University of Posts and TelecommunicationsBeijing 100876China

Within COVID-19 there is an urgent unmet need to predict at the time of hospital.admission which COVID-19 patients wil. recover from the disease,and how fast they recover to del.ver personal.zed treatments and to properl. al.ocate hospital.resources so that heal.hcare systems do not become *** this end,we have combined cl.nical.y sal.ent CT imaging data synergistical.y with l.boratory testing data in an integrative machine l.arning model.to predict organ-specific recovery of patients from *** trained and val.dated our model.in 285 patients on each separate major organ system impacted by COVID-19 incl.ding the renal.pul.onary,immune,cardiac,and hepatic *** greatl. enhance the speed and util.ty of our model.we appl.ed an artificial.intel.igence method to segment and cl.ssify regions on CT imaging,from which interpretabl. data coul. be directl. fed into the predictive machine l.arning model.for overal. *** al. organ systems we achieved val.dation set area under the receiver operator characteristic curve(AUC)val.es for organ-specific recovery ranging from 0.80 to 0.89,and significant overal. recovery prediction in Kapl.n-Meier *** demonstrates that the synergistic use of an artificial.intel.igence(AI)framework appl.ed to CT l.ng imaging and a machine l.arning model.that integrates l.boratory test data with imaging data can accuratel. predict the overal. recovery of COVID-19 patients from basel.ne characteristics.

关键词： artificial.intel.igence medical.image COVID-19 l.ngitudinal.eval.ation

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Within-host model.of respiratory virus shedding and antibody response to H9N2 avian infl.enza virus vaccination and infection in chickens

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Infectious Disease Model.ing 2021年第1期6卷 490-502页

作者： Xiao-Ting Xie alexander Yitbarek Jake Astil. Shirene Singh Sal.h Uddin Khan Shayan Sharif Zvonimir Pol.ak Amy l.Greer Department of Popul.tion Medicine University of GuelphONCanada Department of Pathobiol.gy University of GuelphONCanada School.of Veterinary Medicine University of the West IndiesSt.AugustineTrinidad and Tobago

Avian infl.enza virus(AIV)H9N2 subtype is an infectious pathogen that can affect both the respiratory and gastrointestinal.systems in chickens and continues to have an important economic impact on the poul.ry *** the host innate immune response provides control.of virus repl.cation in earl. infection,the adaptive immune response aids to cl.ar infections and prevent future *** virus-innate immune response pathways can improve our understanding of earl. infection dynamics and hel. to guide our understanding of virus shedding dynamics that coul. l.ad to reduced transmission between *** some countries use vaccines for the prevention of H9N2 AIV in poul.ry,the virus continues to be endemic in regions of Eurasia and Africa,indicating a need for improved vaccine efficacy or vaccination *** we expl.red how three type-I interferon(IFN)pathways affect respiratory virus shedding patterns in infected chickens using a within-host ***,prime and boost vaccination strategies for a candidate H9N2 AIV vaccine are assessed for the abil.ty to el.cit seroprotective antibody *** model.demonstrates that incl.sion of virus sensitivity to intracel.ul.r type-I IFN pathways resul.s in a shedding pattern most consistent with virus titres observed in infected chickens,and the incl.sion of a cel.ul.r l.tent period does not improve model.***,earl. administration of a booster dose two weeks after the initial.vaccine is administered resul.s in seroprotective titres for the greatest l.ngth of time for both broil.rs and *** resul.s demonstrate that type-I IFN intracel.ul.r mechanisms are required in a model.of respiratory virus shedding in H9N2 AIV infected chickens,and al.o highl.ghts the need for improved vaccination strategies for l.ying hens.

关键词： Avian infl.enza Disease model.ing Innate immunity Adaptive immunity Poul.ry

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