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Veno-arterial extracorporeal membrane oxygenation for the treatment of obstructive shock caused by venous air embolism:A case report

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World Journal of Clinical Cases 2024年第19期12卷 4016-4021页

作者： Gui-Wei Zhu Yan-Min Li Wen-Hui Yue Jian-Xia Sun Xin Zhou Ying-Xia Xu hai-Bo Wang qing-hai zhang Department of Critical Care Medicine The First Affiliated Hospital of Shandong Second Medical UniversityWeifang 261000Shandong ProvinceChina Office of Medical Affairs The First Affiliated Hospital of Shandong Second Medical UniversityWeifang 261042Shandong ProvinceChina Department of Hand&Foot Orthopedic Surgery The First Affiliated Hospital of Shandong Second Medical UniversityWeifang 261000Shandong ProvinceChina

BACKGROUND Venous air embolism(VAE)is a potentially lethal condition,with a reported incidence rate of about 0.13%,and the true incidence may be higher since many VAE are *** current treatments for VAE include Durant's maneuver,aspiration and removal of air through venous catheters,and hyperbaric oxygen *** critically ill patients,use of cardiotonic drugs and chest compressions remain useful *** wider availability of extracorporeal membrane oxygenation(ECMO)has brought a new option for VAE *** SUMMARY A 53-year-old female patient with VAE presented to the emergency clinic due to abdominal pain with fever for 1 d and unconsciousness for 2 *** day ago,the patient suffered from abdominal pain,fever,and *** suddenly became unconscious after going to the toilet during the intravenous infusion of ciprofloxacin 2 h ago,accompanied by nausea and vomiting,during which a small amount of gastric contents were *** was immediately sent to a local hospital,where cranial and chest computed tomography showed bilateral pneumonia as well as accumulated air visible in the right ventricle and pulmonary *** condition deteriorated despite endotracheal intubation,rehydration,and other treatments,and the patient was then transferred to our ***-arterial ECMO was applied in our hospital,and the patient's condition gradually *** patient was successfully weaned from ECMO and extubated after two *** ECMO may be an important treatment for patients with VAE in critical condition.

关键词： Venous air embolism Obstructive shock Veno-arterial extracorporeal membrane oxygenation Critical Case report

In-core fuel management strategy for the basket-fuel-assembly molten salt reactor

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Nuclear Science and Techniques 2017年第9期28卷 87-99页

作者： Chun Xue Zhi-Yong Zhu hai-qing zhang Jun Lin Shanghai Institute of Applied Physics Chinese Academy of Sciences Jiading Campus Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049 China

Molten salt reactor, with good economics and inherent reliability, is one of the six types of Generation IV candidate reactors. The Basket-Fuel-Assembly Molten Salt Reactor(BFAMSR) is a new concept design based on fuel assemblies composed of fuel pebbles made of TRISOcoated particles. Four refueling patterns, similar to the fuel management strategy for water reactors, are designed and analyzed for BFAMSR in terms of economy and *** MCNPX is employed to calculate the parameters, such as the total duration time, cycle length, discharge burnup,total discharge quantity of ^(235)U, total discharge quantity of ^(239)Pu, neutron flux distribution and power distribution. The in–out loading pattern has the highest burnup and duration time, the worst neutron flux and power distribution and the lowest neutron leakage. The out–in pattern possesses the most uniform neutron flux distribution, the lowest burnup and total duration time, and the highest neutron *** out–in partition alternate pattern has slightly higher burnup, longer total duration time and smaller neutron leakage than that of the out–in loading pattern at the cost of sacrificing some neutron flux distribution and power distribution. However, its alternative distribution of fuelelements cut down the refueling time. The low-leakage pattern is the second highest in burnup, and total duration time, and its neutron flux and power distributions are the second most uniform.

关键词：堆芯燃料管理燃料组件熔盐堆中子通量分布反应堆持续时间包覆燃料颗粒中子泄漏

Thermodynamics and weak cosmic censorship conjecture in Born-Infeld-anti-de Sitter black holes

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Chinese Physics C 2021年第2期45卷 641-653页

作者： Xiao-Xiong Zeng hai-qing zhang State Key Laboratory of Mountain Bridge and Tunnel Engineering Chongqing Jiaotong UniversityChongqing 400074China Department of Mechanics Chongqing Jiaotong UniversityChongqing 400074China Center for Gravitational Physics Department of Space Science and International Research Institute of Multidisciplinary ScienceBeihang UniversityBeijing 100191China

In this study,we examine the laws of thermodynamics and the weak cosmic censorship conjecture in the normal and extended phase spaces of Born-Infeld-anti-de Sitter black holes by considering a charged particle *** the normal phase space,the first and second laws of thermodynamics as well as the weak cosmic censorship are still ***,in the extended phase space,the second law of thermodynamics is violated for double-horizon black holes and part of single-horizon black *** first law of thermodynamics and the weak cosmic censorship conjecture are still valid for all types of black *** addition,we found that the shift of the metric function,which determines the locations of the horizons,takes the same form at the minimum point in both the normal and extended phase spaces,indicating that the weak cosmic censorship conjecture is independent of the thermodynamic phase space.

关键词： black hole thermodynamics weak cosmic censorship conjecture Born-Infeld black hole

Radionuclides in primary coolant of a fluoride salt-cooled hightemperature reactor during normal operation

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Nuclear Science and Techniques 2017年第3期28卷 109-114页

作者： Guo-qing zhang Shuai Wang hai-qing zhang Xing-Wang Zhu Chao Peng Jun Cai Zhao-Zhong He Kun Chen Shanghai Institute of Applied Physics Chinese Academy of Sciences Shanghai 201800 China University of Chinese Academy of Sciences Beijing 100049China

The release of fission products from coated particle fuel to primary coolant, as well as the activation of coolant and impurities, were analysed for a fluoride saltcooled high-temperature reactor(FHR) system, and the activity of radionuclides accumulated in the coolant during normal operation was calculated. The release rate(release fraction per unit time) of fission products was calculated with STACY code, which is modelled mainly based on the Fick's law, while the activation of coolant and impurities was calculated with SCALE code. The accumulation of radionuclides in the coolant has been calculated with a simplified model, which is generally a time integration considering the generation and decay of radionuclides. The results show that activation products are the dominant gamma source in the primary coolant system during normal operation of the FHR while fission products become the dominant source after shutdown. In operation condition,health-impacts related nuclides such as ~3H, and ^(14)C originate from the activation of lithium and coolant impurities including carbon, nitrogen, and oxygen. According to the calculated effective cross sections of neutron activation,~6Li and ^(14)N are the dominant ~3H production source and ^(14)C production source, respectively. Considering the high production rate,~3H and ^(14)C should be treated before being released to the environment.

关键词： Source term FHR Primary coolant Fick’s law Diffusion

NUMERICAL SI MULATION OF STEADY FLOWFOR VISCOELASTIC FLUID IN AN ECCENTRIC ANNULUS WITHINNER ROD MOVING AXIALLY

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Journal of Hydrodynamics 2005年第4期17卷 514-518页

作者： YANG Shu-ren WANG Chun-sheng CUI hai-qing zhang Chun-liang Department of Petroleum Engineering Daqing Petroleum Institute Daqing 163318 China

The governing equation about steady flow of viscoelastic fluids in an eccentric annulus with inner rod moving axially is established by using common conversion Maxwell constitutive model. The numerical solutions of the flow are obtained by control volume and ADI methods. The influence of the eccentricity, velocity of inner rod and elasticity of fluid to the velocity distribution, flow rate and radial force on the inner rod is obtained, and the reason for the severe eccentric wear of the sucker rod of polymer flood well is analyzed.

关键词： viscoelastic fluid eccentric annulus velocity distribution radial force eccentric wear

Dual template-induced construction of three-dimensional porous SiO2/NC/Co-CNTs heterostructure with highly dispersed active sites for efficient oxygen evolution reaction

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Tungsten 2024年第3期6卷 585-595页

作者： hai-Qi zhang Xiao-Jun Zeng qing-qing zhang Zu-Liang zhang Chu-Long Jin Rong-hai Yu School of Materials Science and Engineering Jingdezhen Ceramic University School of Materials Science and Engineering Beihang University

The development and exploration of efficient and economical electrocatalysts for oxygen evolution reaction（OER） represents the main bottleneck to unlocking a sustainable energy scenario based on elec trocataly tic water *** scale integration of three-dimensional（3D） porous heterostructure with highly dispersed active sites and good structural stability is ***,a dual template route is developed to construct the 3D porous SiO2/nitrogen-doped carbon（NC）/Co-carbon nano tubes（CNTs） hetero ***,the hard template（SiO2nano spheres） contributes to 3D porous structure,increases the specific surface area,and promotes the contact area of the *** the same time,the soft template（basic zinc carbonate） can control the growth of 1D CNTs and facilitate the exposure of the active ***,3D porous SiO2/NC/Co-CNTs hetero structure inherits highly dispersed Co nanoparticles coated by *** conductive channels and abundant N hetero atoms doping are reasonably constructed by a dual template ***,SiO2/NC/Co-CNTs catalyst provides an extraordinary activity for the OER in alkaline media,with a low overpotential of 298 mV at a current density of 10 mA·***,SiO2/NC/Co-CNTs hetero structure enables excellent long-term durability with a 10 mV decay in overpotential after 3000 cyclic voltammetry cycles,and 97% remain in current density over 20 *** is believed that this dual template strategy can provide a new and simple way to construct a highly dispersed active site in electrocatalysts.

关键词： Dual template High dispersion Porous heterostructure Conductive channels Oxygen evolution reaction

NUMERICAL COMPUTATION OF PRESSURE GRADIENT FOR THE FLOW OF POWER-LAW FLUID IN ANNULUS WITH INNER CYLINDER EXECUTING A PLANETARY MOTION

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Journal of Hydrodynamics 2009年第5期21卷 699-704页

作者： CUI hai-qing CAI Meng zhang Shu-yun XIU De-yan Key Laboratory for Enhanced Oil and Gas Recovery of Ministry of Education Daqing Petroleum Institute Daqing 163318 China Exploration and Development Research Institute of Jidong Oilfield PetroChina Tangshan 063000 China

With the governing equations for the flow of the power-law fluid in annulus with the inner cylinder executing a planetary motion being transformed by using the undetermined coefficient method, the formula of pressure gradient for this flow under the given flow rate and the relevant numerical calculation method are given in this article. Through the experiments on the flow of Hydrolyzed Polyacrylamide （HPAM） aqueous solution which can be regarded as a power-law fluid, the calculated results of the pressure gradient values are compared with measured data, the mean relative error between them is smaller than 5%, which verifies the results presented in this article.

关键词： power-law fluid planetary motion annulus pressure gradient numerical calculation

Features and formulae of sediment incipient motion in vegetated flow environment

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Journal of Hydrodynamics 2024年第2期36卷 331-339页

作者： Yu-xuan Xu Wei-jie Wang Shi-bao zhang Han-qing Zhao Xue-kai Chen hai-ping zhang School of Water Conservancy North China University of Water Resources and Electric PowerZhengzhou450045China State Key Laboratory of Simulation and Regulation of Water Cycle in River Basin China Institute of Water Resources and Hydropower ResearchBeijing100038China China Three Gorges Corporation Wuhan430010China

Aquatic vegetation is a vital component of natural river ecosystems,playing a crucial role in maintaining ecological balance,providing habitat and improving water ***,the presence of vegetation results in increased resistance in vegetated channels compared with non-vegetated channels,rendering traditional sediment movement predictions inadequate for the ***,the concept of a vegetation influence factor,denoted by CDah,has been proposed by previous researchers to represent the effect of vegetation on sediment movement in *** this study,we focus on exploring the vegetation resistance coefficient(CD)among the vegetation influence factors,evaluating two different calculation methods for vegetation resistance coefficient,and presenting two expressions through genetic algorithm analysis to predict the incipient flow velocity of sediment in vegetated *** predicted values from the new formulae show excellent agreement with measured data,highlighting the high accuracy of the proposed methods in predicting the incipient flow velocity of *** results provide a solid theoretical basis for understanding the influence of aquatic vegetation on sediment particle movement.

关键词： Vegetation flow vegetation resistance coefficient genetic algorithm sediment initiation

Effect of sulfate erosion on strength and leaching characteristic of stabilized heavy metal contaminated red clay

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Transactions of Nonferrous Metals Society of China 2017年第3期27卷 666-675页

作者： hai-qing zhang Yu-you YANG Yu-cheng YI School of Engineering and Technology China University of Geosciences (Beijing) Beijing 100083 China

Solidification/stabilization(S/S)technology has been widely used for remediation of the heavy metal contaminated *** heavy metal ions will be leached from the stabilized contaminated soil under sulfate erosion conditions,which gives rise tosecondary contamination to the areas around the mine *** commonly used Portland cement,fly ash and quicklime were takenas binder raw materials with various mix *** then,the sulphuric acid and nitric acid method was used to investigate theleaching characteristic of stabilized heavy metal contaminated *** effects of binder types and binder contents,sulfateconcentrations(1.5,3.0and6.0g/L)and erosion time(0,7,14and28d)on leached concentrations of heavy metal ions fromcontaminated soils were ***,a parameter named immobilization percentage(IP)was introduced to evaluate theinfluence of erosion time and sulfate concentration on immobilization effectiveness for heavy metal *** results showed that,theleached heavy metal concentrations increased with sulfate concentration and erosion *** speaking,the compositebinders that had calcium oxide in it exhibited the worst solidification effectiveness and the lowest immobilization percentage,withthe largest leached heavy metal concentration.

关键词： solidification/stabilization heavy metal contaminated soil sulfate erosion sulphuric acid and nitric acid method