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Evaluation of standard liver volume formulae for Chinese adults

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World Journal of Gastroenterology 2009年第32期15卷 4062-4066页

作者： Zheng-rong Shi Lu-Nan yan Bo Li Tian-fu Wen Liver Transplantation Division Department of Surgery West China Hospital Sichuan University Chengdu 610041 Sichuan Province China

AIM:To evaluate different standard liver volume (SLV) formula and verify the applicability of the formulae for Chinese ***: Data from 70 cases of living donor liver transplantation (LDLT) performed at our transplantation centers between January 2008 and April 2009 were analyzed. SLV was estimated using our recently reported formula [the Chengdu formula: SLV (mL)=11.5×body weight (kg) + 334] and other reported formulae used for Chinese adults. Actual intraoperative liver volumes were obtained from a review of the patients' medical ***: The actual right liver volume was not significantly different from the estimated right liver volume determined by the Chengdu formula, but was significantly smaller than estimates using the Heinemann, Urata, Vauthey, and Lee formulae (P<0.01), and signif icantly larger than estimates using the Fan formula (P<0.05).CONCLUSION: The Chengdu formula was demonstrated to be reliable by its application in LDLT.

关键词： Standard liver volume Living donor livertransplantation Chinese adult Liver volume formula

Numerical simulation and experimental measurement of transport phenomena for coherent jet with CH4 ＋ N2 mixed fuel gas

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Journal of Iron and Steel Research International 2018年第1期25卷 28-36页

作者： Shao-yan Hu rong Zhu Run-zao Liu Kai Dong fu-hai Liu Guo-hong Ma rong-fang Su School of Metallurgical and Ecological Engineering University of Science and Technology BeijingBeijing 100083 China Beijing Key Laboratory of Research Center of SpecialMelting and Preparation of High-end Metal Materials University of Science and Technology BeijingBeijing 100083 China rongcheng Jingye Technology Limited Company Beijing Beijing 100083 China

Coherent jet technology has been widely used in EAF steelmaking process because of the longer potential core length and stronger impacting power of the supersonic oxygen jet. However, more oxygen and fuel gas are consumed to achieve excel- lent characteristics of coherent jets, which causes the increase in steelmaking cost. Computational fluid dynamics simulation and experimental measurement of the coherent jets with CH4 ＋ N2 mixed fuel gas were carried out aiming at reducing the consumption of fuel gas. The numerical simulation results showed good agreement with the experimental data. As a result, high proportion of N2 negatively affects the combustion of CH4, which is not good for the protection of oxygen jets. While the gas composition is 75% CH4 ＋ 25% N2, the N2 addition to the CH4 leads to an expanding of CH4 combustion zone, and the energy generated by the combustion reaction could be delivered to the molten bath more efficiently, which is one control scheme with high performance-price ratio.

关键词： Electric arc furnace Coherent jet Numerical simulation Jet measurement Mixed fuel gas

The Relationship between the Distribution of Thick Coal Belts and the Late Carboniferous-Early Early Permian Marine Transgression-Regression in the North China Platform

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Acta Geologica Sinica(English Edition) 1998年第1期72卷 114-120页

作者： ZHONG rong fu Zeming Institute of Geomechanics CAGS Beijing 100081 China University of Geosciences Beijing

Four great second-order transgressions occurred during the Late Carboniferous to early Early Permian and they came from both the eastern and western sea areas in the North China Platform. As time went on, depocentres, depositional extent, transgression directions, coastline position and distribution of minable coal seams were changing continuously. The third great second-order transgression occurring at the beginning of the early Early Permian marks the maximum transgression period and before its arrival, i.e. at the close of the late Late Carboniferous, there was the super-regional coal-forming environment. During the second, third and fourth transgressions, the northern North China Platform was all along situated on the transgressive margin of the epicontinental sea and became the major distribution area of thick coal belts because it maintained a coal-forming environment for a long period of time from the close of the late Late Carboniferous to the Early Permian.

关键词： Late Carboniferous-early Early Permian marine transgression-regression thick coal belt North China Platform

The Dynamical Mechanisms of the Cell Cycle Size Checkpoint

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Chinese Physics Letters 2012年第10期29卷 253-256页

作者： FENG Shi-fu yan Jie LIU Zeng-rong yanG Ling School of Mathematical Sciences Soochow UniversitySuzhou 215006 Center for Systems Biology Soochow UniversitySuzhou 215006 Institute of Systems Biology Shanghai University99 Shangda RoadShanghai 200444

Cell division must be tightly coupled to cell growth in order to maintain cell size,whereas the mechanisms of how initialization of mitosis is regulated by cell size remain to be *** develop a mathematical model of the cell cycle,which incorporates cell growth to investigate the dynamical properties of the size checkpoint in embryos of Xenopus *** show that the size checkpoint is naturally raised from a saddle-node bifurcation,and in a mutant case,the cell loses its size control ability due to the loss of this saddle-node point.

关键词： point saddle bifurcation

Electron Transport through a Silicon Atomic Chain

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Chinese Physics Letters 2013年第6期30卷 186-189页

作者： LIU fu-Ti CHENG yan CHENG Xiao-Hong yanG fu-Bin CHEN Xiang-rong College of Physics and Electronic Engineering Yibin universityYibin 644000 College of Physical Science and Technology Sichuan UniversityChengdu 610064

The electron transport properties of a silicon atomic chain sandwiched between Au(100)leads are investigated by using the density functional theory combined with the non-equilibrium Green's function *** breaking process of Au-Si4-Au nanoscale junctions is *** conductance and the corresponding cohesion energy as a function of distance dz are *** the increase of distance,the conductance *** dz=18.098 A,there is a minimum value of cohesion *** nanoscale structure of junctions is most stable,and the equilibrium conductance is 1.71G_(0)(G_(0)=2e^(2)/h)at this *** I–V curves of junctions at equilibrium position show linear characteristics.

关键词： equilibrium Electron function

Special modes induced by inter-chain coupling in a non-Hermitian ladder system

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Communications in Theoretical Physics 2020年第10期72卷 53-69页

作者： rong Huang Yu yan Zhi-Xu Zhang Lu Qi Hong-fu Wang Shou Zhang Department of Physics College of ScienceYanbian UniversityYanjiJilin 133002China School of Physics Harbin Institute of TechnologyHarbinHeilongjiang 150001China

We explore some interesting phenomena in a simple non-Hermitian ladder *** modes with energy eigenvalues closely related to the inter-chain-coupling strength appear in the non-Hermitian ladder *** show that a phase transition occurs whereby special modes with pure real eigenvalues can switch to special modes with pure imaginary eigenvalues,when the inter-chain-coupling strength changes from symmetric to *** find that the density profiles of all the special modes are completely identical under certain conditions,even if the inter-chain-coupling strength is added into the non-Hermitian ladder system in different ***,we also demonstrate that the different inter-chain couplings are fundamentally equivalent to adding different on-site potential energies into the non-Hermitian ladder system.

关键词： non-Hermitian ladder system special modes inter-chain-coupling

Bidirectional regulation of the brain-gut-microbiota axis following traumatic brain injury

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Neural Regeneration Research 2025年第8期20卷 2153-2168页

作者： Xinyu You Lin Niu Jiafeng fu Shining Ge Jiangwei Shi yanjun Zhang Pengwei Zhuang National Key Laboratory of Chinese Medicine Modernization Tianjin University of Traditional Chinese MedicineTianjinChina Haihe Laboratory of Modern Chinese Medicine Tianjin University of Traditional Chinese MedicineTianjinChina First Teaching Hospital of Tianjin University of Traditional Chinese Medicine TianjinChina National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion TianjinChina

Traumatic brain injury is a prevalent disorder of the central nervous *** addition to primary brain parenchymal damage,the enduring biological consequences of traumatic brain injury pose long-term risks for patients with traumatic brain injury;however,the underlying pathogenesis remains unclear,and effective intervention methods are *** dysfunction is a significant consequence of traumatic brain *** the most densely innervated peripheral tissue in the body,the gut possesses multiple pathways for the establishment of a bidirectional“brain-gut axis”with the central nervous *** gut harbors a vast microbial community,and alterations of the gut niche contribute to the progression of traumatic brain injury and its unfavorable prognosis through neuronal,hormonal,and immune pathways.A comprehensive understanding of microbiota-mediated peripheral neuroimmunomodulation mechanisms is needed to enhance treatment strategies for traumatic brain injury and its associated *** comprehensively reviewed alterations in the gut microecological environment following traumatic brain injury,with a specific focus on the complex biological processes of peripheral nerves,immunity,and microbes triggered by traumatic brain injury,encompassing autonomic dysfunction,neuroendocrine disturbances,peripheral immunosuppression,increased intestinal barrier permeability,compromised responses of sensory nerves to microorganisms,and potential effector nuclei in the central nervous system influenced by gut ***,we reviewed the mechanisms underlying secondary biological injury and the dynamic pathological responses that occur following injury to enhance our current understanding of how peripheral pathways impact the outcome of patients with traumatic brain *** review aimed to propose a conceptual model for future risk assessment of central nervous system-related diseases while elucidating novel insights into the bidirectional effec

关键词： traumatic brain injury brain-gut-microbiome axis gut microbiota neuroimmune immunosuppression host defense vagal afferents bacterial infection dorsal root ganglia nociception neural circuitry

Near-wellbore fracture initiation and propagation induced by drilling fluid invasion during solid fluidization mining of submarine nature gas hydrate sediments

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Petroleum Science 2021年第6期18卷 1739-1752页

作者： Hai-yan Zhu Yi-Ke Dang Guo-rong Wang Shou-Wei Zhou Qiang fu State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Chengdu University of TechnologyChengdu610059SichuanChina School of Human Settlements and Civil Engineering Xi'an Jiaotong UniversityXi'an710049ShaanxiChina School of Mechatronic Engineering Southwest Petroleum UniversityChengdu610500SichuanChina China National Offshore Oil Corporation Beijing100010China

Drilling in a natural gas hydrate formation is challenging due to the poor consolidation of the formation and the potential evaporation of the *** unreasonable down-hole pressure of the drilling fluid can not only lead to the wellbore instability,but also change the predrilling condition of the natural gas hydrate formation,thus leading to an instable *** this paper,the integrated discrete element method(DEM)-computational fluid dynamics(CFD)work flow is developed to study the wellbore instability due to the penetration of the drilling fluid into the hydrate formation during crack *** results show that the difference between in-situ stresses and overpressure directly affect the drilling fluid invasion *** lower hydrate saturation leads to an easier generation of drilling fluid flow channels and the lower formation breakdown *** breakdown pressure increases with the increase of hydrate saturation,this also indicates that hydrates can enhance the mechanical properties of the *** induced cracks are initially accompanied with higher pressure of the drilling *** to the rose diagram of the fracture orientation,a wider orientation of the fracture distribution is observed at higher pressure of the invasion fluid.

关键词： Near wellbore Crack initiation and propagation Drilling fluid invasion Natural gas hydrate Wellbore instability

Synthesis and characterization of HPMA copolymer-5-fu conjugates

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Chinese Chemical Letters 2008年第2期19卷 137-140页

作者： Fang Yuan fu Chen Qing Yu Xiang Xuan Qin Zhi rong Zhang Yuan Huang Key Laboratory of Drug Targeting of Ministry of Education West China School of Pharmacy Sichuan University Chengdu 610041 China

N-（2-Hydroxypropyl） methacrylamide copolymer-5-fluorouracil （PHPMA-fu） conjugates were synthesized by a novel and simplified synthetic route, and characterized by UV, FTIR and HPLC analyses. The conjugated content of 5-fluorouracil （5-fu） was 3.41 ± 0.07 wt%. The stabilities of PHPMA-fu conjugates under different conditions were studied. The results showed that HPMA copolymer was a potential carrier for tumor-targeting delivery of 5-fu.

关键词： HPMA copolymer 5-Fluorouracil Conjugates Characterization Stability