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国外医学情报 1984年第6期 91-92页

作者： s james 赵时敏美国哥伦比亚大学新生儿科教授

胎儿在宫内有呼吸,在母体内从12周开始出现间断呼吸动作,在24小时内约40％的时间,即每天有10小时有呼吸,每分钟60次左右,呼吸时潮气量很小,在呼吸动作同时,肺内液体流动。胎儿呼吸运动对肺发育很重要。

关键词：肺发育呼吸运动胎儿羊水过少

synthesis of carbon nitride in potassium hydroxide molten salt for efficient uranium extraction from radioactive wastewater

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Frontiers of Environmental science & Engineering 2024年第8期18卷 89-99页

作者： shuang Liu Junhan Luo Daniel-james Maguire Liyuan Zheng Zhe Wang Yuexiang Lu Institute of Nuclear and New Energy Technology Tsinghua UniversityBeijing 100084China Nuclear Research Institute for Future Technology and Policy Seoul National UniversitySeoul 08826Republic of Korea Department of Earth sciences University of CambridgeCambridge CB23EQUK The MOE Key Laboratory of Resources and Environmental system Optimization College of Environmental Science and EngineeringNorth China Electric Power UniversityBeijing 102206China

Photocatalysis-assisted removal of uranium has been proven as an effective method for the elimination of radioactive pollution from *** this work,carbon nitride materials were synthesized in potassium hydroxide(KOH)molten salt and applied to photocatalytic uranyl *** materials were confirmed to possess the triazine-s-heptazine structure by NMR,XPs and UV-Vis characterization,and exhibited a wider visible light absorption than graphitic carbon nitride(g-C_(3)N_(4)).The photocatalytic activity of the carbon nitride materials was tailored by varying the precursor mass *** carbon nitride obtained at 80%melamine as precursor(K-CN-80)exhibited the highest photocatalytic extraction ability and its photocatalytic reaction rate is 6.6 times faster than that of g-C_(3)N_(4).The influence of sacrificial agents was studied and the results showed that triethanolamine inhibited U(Ⅵ)photoreduction,but methanol can accelerate U(Ⅵ)photoreduction by consuming photogenerated *** unary KOH molten salt synthesis method has exceptional potential applications in the preparation of carbon nitrides,and the obtained products showed potential in extracting U(Ⅵ)from aqueous solutions for use in nuclear fuel industry and for U(Ⅵ)environmental pollution cleanup.

关键词： Uranium Carbon nitride Molten salt Photocatalysis Radioactive wastewater

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贝叶斯统计学

High speed optical modulation in Ge quantum wells using quantum confined stark effect

1992年

作者： s·詹姆士·普雷斯(s.james Press)

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Frontiers of Optoelectronics 2012年第1期5卷 82-89页

作者： Yiwen RONG Yijie HUO Edward T.FE Marco FIORENTINO Michael R.T.TAN Tomasz OCHALsKI Guillaume HUYET Lars THYLEN Marek CHACINsKI Theodore I.KAMINs james s.HARRIs Department of Electrical Engineering Stanford UniversityStanfordCA 94305USA Quantum science Research Hewlett-Packard LaboratoriesPalo AltoCA 94304USA Tyndall National Institute Lee MaltingsPhotonics BuildingCorkIreland Photonics and Microwave Engineering Royal Institute of Technology Kista Stockholm S-16440Sweden

We focus on the optimization of siGe material deposition, the minimization of the parasitic capacitance of the probe pads for high speed, low voltage and high contrast ratio operation. The device fabrication is based on processes for standard si electronics and is suitable for mass-production. We present observations of quantum confinement and quantum-confined stark effect （QCsE） electroabsorption in Ge quantum wells （QWs） with siGe barriers grown on si substrates. Though Ge is an indirect gap semiconductor, the resulting effects are at least as clear and strong as seen in typical III-V QW structures at similar wavelengths. We also demonstrated a modulator, with eye diagrams of up to 3.5 GHz, a small driving voltage of 2.5 V and a modulation bandwidth at about 10 GHz. Finally, carrier dynamics under ultra-fast laser excitation and high- speed photocurrent response are investigated.

关键词： electroabsorption effect Ge optical intercon-nections optical modulators quantum-confined stark effect(QCsE) Ge/siGe quantum wells (QWs)

Facilitated Prediction of Micropollutant Degradation via UV-AOPs in Various Waters by Combining Model simulation and Portable Measurement

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Engineering 2024年第6期37卷 87-95页

作者： Yanyan Huang Mengkai Li Zhe sun Wentao Li james R.Bolton Zhimin Qiang Key Laboratory of Drinking Water science and Technology Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China University of Chinese Academy of sciences Beijing 100049China Department of Civil and Environmental Engineering University of AlbertaEdmontonAB T6G 1H9Canada state Key Laboratory of Environmental Aquatic Chemistry Research Center for Eco-Environmental SciencesChinese Academy of SciencesBeijing 100085China

The degradation of micropollutants in water via ultraviolet(UV)-based advanced oxidation processes(AOPs)is strongly dependent on the water *** reactive radicals(RRs)formed in UV-AOPs have different reaction selectivities toward water matrices and degradation efficiencies for target ***,process selection and optimization are *** study developed a facilitated prediction method for the photon fluence-based rate constant for micropollutant degradation(K′_(p,MP))in various UV-AOPs by combining model simulation with portable *** methods for measuring the scavenging capacities of the principal RRs(RRsCs)involved in UV-AOPs(i.e.,HO^(·),sO_(4)^(·-),and Cl^(·))using a mini-fluidic photoreaction system were *** simulation models consisted of photochemical,quantitative structure–activity relationship,and radical concentration steady-state approximation *** RRsCs were determined in eight test waters,and a higher RRsC was found to be associated with a more complex water ***,by taking sulfamethazine,caffeine,and carbamazepine as model micropollutants,the k′_(p,MP) values in various UV-AOPs were predicted and further verified experimentally.A lower k′_(p,MP) was found to be associated with a higher RRsC for a stronger RR competition;for example,k′_(p,MP) values of 130.9 and 332.5 m^(2) einstein^(–1),respectively,were obtained for carbamazepine degradation by UV/H_(2)O_(2) in the raw water(RRsC=9.47×10^(4) s^(-1))and sand-filtered effluent(RRsC=2.87×10^(4) s^(-1))of a drinking water treatment *** developed method facilitates process selection and optimization for UV-AOPs,which is essential for increasing the efficiency and cost-effectiveness of water treatment.

关键词： UV-AOPs Micropollutant degradation Reactive radicals Water matrix Model simulation

Introduction to modern photogrammetry

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2001年

作者： Edward M. Mikhail, james s. Bethel, J. Chris McGlone

This book isintended to serve as a rigorous introduction to the basic principles and practice of photogrammetry and as a guide to the related areas in which photogrammetry plays a role or which affect the practice of ... 详细信息

ISBN: (纸本)0471309249

关键词： Photogrammetry.

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社会理论的基础上

社会理论的基础上

Acute worsening of microvascular complications of diabetes mellitus during rapid glycemic control:The pathobiology and therapeutic implications

1992年

作者：（美）詹姆斯· s. 科尔曼（james s. Coleman）邓方译

0310

关键词：社会学

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World Journal of Diabetes 2024年第3期15卷 311-317页

作者： Dania Blaibel Cornelius james Fernandez Joseph M Pappachan Department of Endocrinology and Metabolism Lancashire Teaching Hospitals NHS TrustPreston PR29HTUnited Kingdom Department of Endocrinology and Metabolism Pilgrim HospitalUnited Lincolnshire Hospitals NHS TrustBoston PE219QSUnited Kingdom Faculty of science Manchester Metropolitan UniversityManchester M156BHUnited Kingdom Faculty of Biology Medicine and HealthThe University of ManchesterManchester M139PLUnited Kingdom

While chronic hyperglycaemia resulting from poorly controlled diabetes mellitus(DM)is a well-known precursor to complications such as diabetic retinopathy,neuropathy(including autonomic neuropathy),and nephropathy,a paradoxical intensification of these complications can rarely occur with aggressive glycemic management resulting in a rapid reduction of glycated ***,acute onset or worsening of retinopathy and treatment induced neuropathy of diabetes are more common among these complications,rarely other problems such as albuminuria,diabetic kidney disease,Charcot’s neuroarthropathy,gastroparesis,and urinary bladder dysfunction are also *** World Journal of Diabetes recently published a rare case of all these complications,occurring in a young type 1 diabetic female intensely managed during pregnancy,as a case report by Huret et *** is essential to have a comprehensive understanding of the pathobiology,prevalence,predisposing factors,and management strategies for acute onset,or worsening of microvascular complications when rapid glycemic control is achieved,which serves to alleviate patient morbidity,enhance disease management compliance,and possibly to avoid medico-legal issues around this rare clinical *** editorial delves into the dynamics surrounding the acute exacerbation of microvascular complications in poorly controlled DM during rapid glycaemic control.

关键词： Diabetes mellitus Microvascular complications Diabetic retinopathy Treatment induced neuropathy of diabetes Diabetic nephropathy Charcot’s neuropathy

Evaluating reservoir suitability for large-scale hydrogen storage:A preliminary assessment considering reservoir properties

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Energy Geoscience

Energy Geoscience 2024年第4期5卷 198-211页

作者： Chinedu J.Okere james J.sheng Chinedu Ejike Bob L.Herd Department of Petroleum Engineering Texas Tech UniversityLubbockTX79409United States Mewbourne school of Petroleum and Geological Engineering University of OklahomaOK73019United States

With rising demand for clean energy,global focus turns to finding ideal sites for large-scale underground hydrogen storage(UHs)in depleted petroleum reservoirs.A thorough preliminary reservoir evaluation before hydrogen(H_(2))injection is crucial for UHs success and *** criteria for UHs often emphasize economics and chemistry,neglecting key reservoir *** study introduces a comprehensive framework for the reservoir-scale preliminary assessment,specifically tailored for long-term H_(2) storage within depleted gas *** evaluation criteria encompass critical components,including reservoir geometry,petrophysical properties,tectonics,and formation *** illustrate the practical application of this approach,we assess the Barnett shale play reservoir *** assessment unfolds through three key stages:(1)A systematic evaluation of the reservoir's properties against our comprehensive screening criteria determines its suitability for H_(2) storage.(2)Using both homogeneous and multilayered gas reservoir models,we explore the feasibility and efficiency of H_(2) *** phase involves an in-depth examination of reservoir behavior during the injection stage.(3)To enhance understanding of UHs performance,sensitivity analyses investigate the impact of varying reservoir dimensions and injection/production *** findings reveal the following:(a)Despite potential challenges associated with reservoir compaction and aquifer support,the reservoir exhibits substantial promise as an H_(2) storage site.(b)Notably,a pronounced increase in reservoir pressure manifests during the injection stage,particularly in homogeneous reservoirs.(c)Furthermore,optimizing injection-extraction cycle efficiency can be achieved by augmenting reservoir dimensions while maintaining a consistent *** ensure a smooth transition to implementation,further comprehensive investigations are advised,including experimental and numerical studies to address

关键词： site selection Underground hydrogen storage Preliminary evaluation Depleted petroleum reservoirs Reservoir assessment

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引起产蛋下降的21种要因

中国畜牧兽医 1980年第2期 45-46页

作者：叶波 james s.Rock

应用有关家禽疾病防治、饲养和管理等知识技能,对产蛋下降可防患于未然;万一某个鸡群发生产蛋下降情况,就可究其原因,及时对其他鸡群采取预防措施。美国康涅狄格大学的Louis van der Heide)博士认为:造成产蛋下降的原因有200种之多。本... 详细信息

应用有关家禽疾病防治、饲养和管理等知识技能,对产蛋下降可防患于未然;万一某个鸡群发生产蛋下降情况,就可究其原因,及时对其他鸡群采取预防措施。美国康涅狄格大学的Louis van der Heide)博士认为:造成产蛋下降的原因有200种之多。本文作者则总结出了以下21种主要诱

关键词：产蛋下降自然感染母鸡疫苗接种防制产蛋鸡