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Incidence of infectious complications is associated with a high mortality in patients with hepatitis B virus-related acute-on-chronic liver failure

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World Journal of Clinical Cases 2019年第16期7卷 2204-2216页

作者： Chen Wang De-Qiang Ma Sen Luo Chuan-Min Wang De-Ping Ding you-you tian Kang-Jian Ao Yin-Hua Zhang Yue Chen Zhong-Ji Meng Department of Infectious Diseases Taihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina Institute of Biomedical Research Taihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina

BACKGROUND In China,hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF) is the most common liver failure characterized by serious clinical syndromes of liver decompensation with a very high *** and/or fungal infections are the most common complications that are associated with high short-term *** translocation from the intestine,impaired hepatic clearance,and immune paralysis of circulating immune cells are thought to contribute to infectious complications in liver *** control of bacterial and fungal infections is the key to improving HBV-ACLF *** prevention,early diagnosis,and timely treatment of bacterial and fungal infections are essential for treating *** To investigate the frequency and role of bacterial and fungal infections in patients with *** Patients with HBV-ACLF hospitalized at Taihe Hospital,Hubei University of Medicine from January 2014 to December 2017 were retrospectively ***-related information was retrieved from the hospital case database,including general information,blood biochemistry,complications,*** to the occurrence of secondary infection or not,the patients were divided into an infection group and a non-infection *** sites,types,and incidences of bacterial and fungal infections and the influence of infections on the prognosis of HBV-ACLF were statistically *** risk factors for infections were assessed by unconditional logistic *** There were 174 cases of HBV-ACLF that met the enrollment criteria,of which 114 (65.52%) were diagnosed with infectious *** occurred in the abdominal cavity (87 cases),respiratory tract (51 cases),urinary tract (18 cases),and biliary tract (10 cases).Patients with infectious complications had a significantly higher 28-d mortality (70.18%,80/114) than those without (40.00%,24/60)(70.18% vs 40.00%,P < 0.05).And patients with infectious complications had a m

关键词： Hepatitis B Acute-on-chronic liver failure Bacterial infection Fungal infection Prognosis

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Adsorption and retention of fracturing fluid and its impact on gas transport in tight sandstone with different clay minerals

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Petroleum Science 2025年第1期22卷 370-383页

作者： Yi-Jun Wang Li-Jun you Jian Yang Yi-Li Kang Ming-Jun Chen Jia-Jia Bai Jian tian State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation Southwest Petroleum University Engineering Technology Research Institute of Southwest Oil & Gas Field Company PetroChina School of Petroleum Engineering Changzhou University State Key Laboratory of Coal Mine Disaster Dynamics and Control Chongqing University

To elucidate the adsorption characteristics and retention mechanisms of fracturing fluids in diverse clay minerals, we conducted on-line nuclear magnetic resonance(NMR) and atomic force microscopy(AFM)experiments. The depth and extent of solid phase damage are determined by the ratio between the size of fine fractions in fracturing fluid residue and the pore-throat size in experiments. Poor physical properties(K 0.5 m D) combined with a scattered distribution of retained fracturing fluid is associated with high gas phase recovery permeability, whereas a continuous sheet-like distribution results in low recovery permeability. The expansive surface area and presence of filamentous illite minerals facilitate the multiple winding and adsorption of fracturing fluids, demonstrating strong hydrogen-bonding, multi-layering and multiple adsorption properties. The geological characteristics of the main gas formations exhibit significant variation, and the severity of damage caused by fracturing fluids occurs in diverse sequences. To address this issue, a differentiated strategy for optimizing fracturing fluids has been proposed.

关键词： Clay minerals Formation damage Fracturing fluid retention distribution Adsorption morphology

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Prediction of intrusive gas pores caused by resin burning in sand core for iron castings

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China Foundry 2025年第1期22卷 23-32页

作者： Ji-wu Wang Xiao-long Wang Yu-cheng Sun Yu-hang Huang Xiu-ming Chen Xiong-zhi Wu Na Li Jin-wu Kang Tao Jing tian-you Huang Hai-liang Yu School of Mechanical Electronic and Control EngineeringBeijing Jiaotong UniversityBeijing 100044China Weichai Power Co. Ltd.Weifang 261061ShandongChina School of Mechanical Engineering Central South UniversityChangsha 41000China School of Materials Science and Engineering Key Laboratory for Advanced Materials Processing TechnologyTsinghua UniversityBeijing 100084China

In the production of castings,intrusive gas pore represents a kind of common defects which can lead to leakage in high gas-tightness requirement castings,such as cylinder blocks and cylinder heads for *** occurs due to the intrusion of gases generated during the resin burning of the sand core into castings during the casting ***,a gas generation and flow constitution model was established,in which the gas generation rate is a function of temperature and time,and the flow of gas is controlled by the gas release,conservation,and Darcy's *** heat transfer and gas flow during casting process was numerically *** dangerous point of cores is firstly identified by a virtual heat transfer method based on the similarity between heat transfer and gas flow in the sand *** gas pores in castings are predicted by the gas pressure,the viscosity and state of the melt for these dangerous *** distinct sand core structures were designed and used for the production of iron castings,and the simulated gas pore results were validated by the obtained castings.

关键词： gas pore numerical simulation iron casting sand core resin

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Ni-catalyzed cross-electrophile alkyl-alkyl coupling reactions

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Science China Chemistry 2025年

作者： Li-Xu you Lan tian Chun-Ling Guo Shun-Xi Li Yu-Cheng Liu Yu-Long Li Wei Shu College of Chemistry and Environmental Engineering Key Laboratory of Green Catalysis of Higher Education Institutes of Sichuan Sichuan University of Science and Engineering Guangming Advanced Research Institute Shenzhen Grubbs Institute Department of Chemistry and Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology

Introducing saturated carbon-carbon bonds into organic molecules significantly increases the three-dimensional configuration,thus altering the physical and chemical properties as well as the functions of molecules. Transition-metal-catalyzed carboncarbon cross-couplings represent one of the most straightforward, efficient and modular alternatives to build saturation in a single step. However, the efficient construction of alkyl-alkyl bonds remains a formidable challenge due to the precise manipulation of multiple alkyl metallic intermediates as well as associated competitive side reactions and selectivity control. Over the past years, Ni-catalyzed cross-coupling under reductive conditions has gained more and more attention for alkyl-alkyl crosscoupling partially attributing to the low-valent state of metal centers under reducing conditions, which suppresses the competitive β-hydride elimination process, thus facilitating the formation of alkyl-alkyl bonds. In this review, the initiative and progress of Ni-catalyzed cross-electrophile alkyl-alkyl cross-coupling, including the efforts in racemic and enantioselective formation of alkyl-alkyl bonds, have been summarized and discussed. Moreover, the challenges and further opportunities in this area have also been discussed.

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基于权重因子的RGB-RGBG像素结构转换算法及其FPGA实现

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液晶与显示 2017年第7期32卷 572-579页

作者：黄成强杨友昌贺娟李天华罗德莲遵义师范学院贵州遵义563006

主动阵列有机发光二极管(AMOLED)面板具有低功耗、视角广、柔韧性等优点,被视为下一代显示技术的关键。但是它通常采用RGBG型像素排列,而图像的像素结构是RGB,为了实现图像的显示,迫切需要研究RGB-RGBG的转换算法。本文提出了一种基于... 详细信息

主动阵列有机发光二极管(AMOLED)面板具有低功耗、视角广、柔韧性等优点,被视为下一代显示技术的关键。但是它通常采用RGBG型像素排列,而图像的像素结构是RGB,为了实现图像的显示,迫切需要研究RGB-RGBG的转换算法。本文提出了一种基于权重因子(BWF)的RGB-RGBG像素结构转换算法,并在现场可编程逻辑门阵列(FPGA)上实现电路。通过对原灰阶进行权重求和,得到各个RGBG子像素的灰阶。这种方法可以将灰阶误差降至最低。此外,彩边效应得到极大的改善。实验结果表明,相比于DA算法,BWF算法处理所得图像的PSNRU和PSNRV分别提高了9.2%和9.3%,MSE比DA算法降低19.5%。该算法研究通过FPGA验证,结果表明,BWF处理后的图像显示效果优越。

关键词： AMOLED RGBG 权重因子转换算法

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反应溅射制备MoO_3薄膜及其光学和电致变色性能研究

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真空 2011年第3期48卷 58-61页

作者：杨海刚尤天友宋桂林王天兴常方高河南师范大学物理与信息工程学院河南新乡453007 河南省光伏材料重点实验室河南新乡453007

本文采用磁控溅射方法,通过金属钼靶材在Ar+O2气氛中反应溅射制备了氧化钼薄膜。在制备样品过程中改变反应气氛O2的流量,保持其它参数不变,得到不同的氧化钼薄膜。采用X射线衍射(XRD)和扫描电子显微镜(SEM)方法对MoO3薄膜样品结构进行... 详细信息

本文采用磁控溅射方法,通过金属钼靶材在Ar+O2气氛中反应溅射制备了氧化钼薄膜。在制备样品过程中改变反应气氛O2的流量,保持其它参数不变,得到不同的氧化钼薄膜。采用X射线衍射(XRD)和扫描电子显微镜(SEM)方法对MoO3薄膜样品结构进行表征。XRD测试结果表明MoO3薄膜样品均为非晶结构。MoO3薄膜样品的光学性能和电致变色性能采用分光光度计进行测试研究。研究结果表明,当反应气氛O2/Ar流量比例为1:5时,所制备的样品具有较高的可见光透射率,可见光平均透射率为90%,并且电致变色性能较好,调色范围达到了66.94%。

关键词： MoO3薄膜磁控溅射氧流量光学性能电致变色性能

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反应溅射制备MoO_3薄膜及其电致变色响应时间研究

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河南师范大学学报（自然科学版） 2011年第4期39卷 39-42页

作者：杨海刚尤天友宋桂林将玉荣常方高河南师范大学物理与信息工程学院河南新乡453007 河南省光伏材料重点实验室河南新乡453007

在Ar和O2气氛下采用直流反应溅射沉积了MoO3薄膜,样品制备过程中改变薄膜沉积气压,保持其它参数不变,研究了沉积气压对其电致变色性能的影响.利用X射线衍射(XRD)、原子力显微镜(AFM)、傅里叶红外透射光谱(FTIR)对薄膜的结构进行了表征.... 详细信息

在Ar和O2气氛下采用直流反应溅射沉积了MoO3薄膜,样品制备过程中改变薄膜沉积气压,保持其它参数不变,研究了沉积气压对其电致变色性能的影响.利用X射线衍射(XRD)、原子力显微镜(AFM)、傅里叶红外透射光谱(FTIR)对薄膜的结构进行了表征.采用分光光度计研究了MoO3薄膜的电致变色性能,通过电致变色动态测试对样品的电致变色循环稳定性能和响应时间进行了研究.研究结果表明,MoO3薄膜样品为非晶结构,当沉积气压为3 Pa时,MoO3薄膜样品具有较好的电致变色性能,其在可见光范围的平均调色范围为69%,着色时间为5s,漂白时间为27 s.

关键词：电致变色响应时间 MoO3薄膜磁控溅射

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“Slope-adsorption&plateau-pore filling”mechanism unlocking the potential of hard carbon anodes for“fast-charging&large-sized”batteries

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Science China Materials 2025年第1期68卷 309-311页

作者： tian Liang Xiaoming Zhu Hubei Key Laboratory of Radiation Chemistry and Functional Materials School of Nuclear Technology and Chemistry&BiologyHubei University of Science and TechnologyXianning 437100China

To date,there has been no report on fast-charging and Ahlevel sodium-ion batteries(SIBs)by utilizing thick hard carbon anodes that demonstrate prolonged cycling life and high areal capacity at high ***,the relationship among the complex structure of hard carbon,storage mechanism,and fastcharging performance in alkali-metal ion batteries has been a subject of ongoing debate[1,2].

关键词： mechanism charging utilizing

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Is intraperitoneal isoperistaltic side-to-side anastomosis a safe surgical procedure in radical colon cancer surgery

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World Journal of Gastrointestinal Oncology 2025年第3期17卷 133-143页

作者： Bin Wu Jing-Tao Zhu He-Xin Lin Yu-Hua Dai tian-Sheng Lin An-Le Huang Yi-Nan Chen Yong-Wen Li Hai-Bin Wang Yi-Fu Chen Dong-Han Chen Huang-Dao Yu Jun you Qing-Qi Hong Department of Gastrointestinal Oncology Surgery The First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen 361003Fujian ProvinceChina

BACKGROUND Colorectal cancer,one of the most common malignancies,is primarily treated through *** the widespread use of laparoscopy,gastrointestinal reconstruction remains a key area of *** choice between intraperitoneal anastomosis(IA)and extraperitoneal anastomosis(EA)remains a subject of considerable *** study uses intraperitoneal isoperistaltic side-to-side anastomosis(IISSA)with hand-sewn closure of the common opening to evaluate its safety and short-term *** is hypothesized that this technique may offer better short-term outcomes than *** To investigate the safety and short-term outcomes of IISSA with hand-sewn closure of the common opening compared to *** Patients who underwent laparoscopic radical colon cancer surgery between January 2018 and June 2022 at the First Affiliated Hospital of Xiamen University were retrospectively ***,postoperative,and pathological features of the IA and EA groups were observed before and after propensity score *** with right-sided and left-sided colon cancer were separated,each further divided into IA and EA groups(R-IA vs R-EA for right-sided,L-IA vs L-EA for left-sided),for stratified analysis of the aforementioned *** After propensity score matching,63 pairs were matched in each *** surgical characteristics,the IA group exhibited less blood loss and shorter incisions than the EA *** postoperative recovery,the IA group showed earlier recovery of gastrointestinal ***,the IA group had greater lymph node *** to the R-EA group,the R-IA group experienced reduced blood loss,shorter assisted incisions,earlier recovery of gastrointestinal functions and greater lymph node *** compared to the L-EA group,the L-IA group demonstrated earlier postoperative anal exhaust and defecation,along with a reduced length of *** postoperative complications,no statistically signific

关键词： Colon cancer Laparoscopic surgery Intraperitoneal anastomosis Extraperitoneal anastomosis Isoperistaltic sideto-side anastomosis Hand-sewn

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New progresses of fine-grained sediment gravity-flow deposits and their importance for unconventional shale oil and gas plays

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Petroleum Science 2025年第1期22卷 1-15页

作者： tian Yang Ying-Lin Liu State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation (Chengdu University of Technology) Institute of Sedimentary Geology Key Laboratory of Deep-time Geography and Environment Reconstruction and Applications of Ministry of Natural Resources Chengdu University of Technology

Fine-grained sediments are widely distributed and constitute the most abundant component in sedimentary systems, thus the research on their genesis and distribution is of great significance. In recent years, fine-grained sediment gravity-flows(FGSGF) have been recognized as an important transportation and depositional mechanism for accumulating thick successions of fine-grained sediments. Through a comprehensive review and synthesis of global research on FGSGF deposition, the characteristics,depositional mechanisms, and distribution patterns of fine-grained sediment gravity-flow deposits(FGSGFD) are discussed, and future research prospects are clarified. In addition to the traditionally recognized low-density turbidity current and muddy debris flow, wave-enhanced gravity flow, lowdensity muddy hyperpycnal flow, and hypopycnal plumes can all form widely distributed FGSGFD. At the same time, the evolution of FGSGF during transportation can result in transitional and hybrid gravityflow deposits. The combination of multiple triggering mechanisms promotes the widespread development of FGSGFD, without temporal and spatial limitations. Different types and concentrations of clay minerals, organic matters, and organo-clay complexes are the keys to controlling the flow transformation of FGSGF from low-concentration turbidity currents to high-concentration muddy debris flows. Further study is needed on the interaction mechanism of FGSGF caused by different initiations, the evolution of FGSGF with the effect of organic-inorganic synergy, and the controlling factors of the distribution patterns of FGSGFD. The study of FGSGFD can shed some new light on the formation of widely developed thin-bedded siltstones within shales. At the same time, these insights may broaden the exploration scope of shale oil and gas, which have important geological significances for unconventional shale oil and gas.

关键词： Fine-grained sediment gravity-flow Depositional mechanism Transportation and evolution Distribution pattern Shale oil and gas

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