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Integrated approach to colorectal anastomotic leakage: Communication, infection and healing disturbances

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World Journal of Gastroenterology 2016年第32期22卷 7226-7235页

作者： Cloe l Sparreboom zhou-Qiao Wu Jia-Fu Ji Johan F lange Department of Surgery Erasmus University Medical Center 3015 CN Rotterdam. The NEthelands Department of Gastrointestinal Surgery Peking University Cancer Hospital and Institute Haidian District Beijing 100142 China

Colorectal anastomotic leakage(CAl) remains a major complication after colorectal surgery. Despite all efforts during the last decades, the incidence of CAl has not decreased. In this review, we summarize the available strategies regarding prevention, prediction and intervention of CAl and categorize them into three categories: communication, infection and healing disturbances. These three major factors actively interact during the onset of CAl. We aim to provide an integrated approach to CAl based on its etiology. The intraoperative air leak test, intraoperative endoscopy, radiological ex.minations and stoma construction mainly aim to detect and to prevent communication between the intra- and ex.ra-luminal content. Other strategies including postoperative drainage, antibiotics, and infectious-parameter evaluation are intended to detect and prevent anastomotic or peritoneal infection. Most currently available interventions for CAl focus on the control of communication and infection, while strategies targeting the healing disturbances such as lifestyle changes, ox.gen therapy and evaluation of metabolic biomarkers still lack wide clinical application. This simplified categorization may contribute to an integrated understanding of CAl. We strongly believe that this integrated approach should be taken into consideration during clinical practice. An integrated approach to CAl could contribute to a better understanding of the etiology of CAl and eventually better patient outcome.

关键词： Colorectal anastomotic leakage Integrated approach Prevention Prediction Intervention

Mechanism of HBV-related liver Failure

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Mechanism of HBV-related Liver Failure

Modeling of Energy Consumption and Effluent Quality Using Density Peaks-based Adaptive Fuzzy Neural Network

第二届全国病毒性肝炎慢性化重症化基础与临床研究进展学术会议

作者： ZH Yan YM Wang GH Deng x.zhou YZ Tang l liu Department of Infectious Diseases Southwest HospitalThird Military Medical University

Summary The pathogenesis of HBV-associated liver failure is very complicated and it has achieved great progress in recent *** the recent literature,combining with the novel findings of our research team,here,we summarized the pathogenesis of HBV-associated liver failure as follows:l)both host and viral factors are contributed to the pathogenesis of HBV-associated liver failure.2)polymorphisms G-201A from Cx.l10,-592C and -819C from Il-10 are closely related to hepatitis flares and liver failure.3)genotype C and B,particularly B/C co-infection,are correlated with liver failure.4) quasispecies studies during antiviral therapy by using NAs is quite important.5)attention should be paid to missed detection in HBV DNA by real-time PCR. liver failure is a condition in which rapid deterioration of liver function results in altered mentation and *** etiology of liver failure shows worldwide variations,and its prominent causes include drug-induced liver injury,viral hepatitis,autoimmune liver disease and shock or *** most other countries,in China,liver failure has been termed as severe hepatitis and is caused mainly by hepatitis B virus(HBV) infection(at least 60%-80%).1 According to the diagnostic and treatment guidelines for liver failure recommended by the Chinese Medical Association in 2006,2 liver failure could be classified four difference types as table 1. Persistent HBV infection and HBV-related liver diseases have been considered as a multi-factorial and polygenic disorder with viral,environmental and host genetic *** pathogenesis of HBV-associated liver failure is very complex.and needs more studies to *** host and viral factors are contributed to the pathogenesis of HB V-associated liver *** the literature in recent years,combining with the novel findings of our research team,here,we summarized the pathogenesis of HBV-associated liver failure as follows. The Progress of Pathogenesis Host Factors

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IEEE/CAA Journal of Automatica Sinica 2018年第5期5卷 968-976页

作者： Junfei Qiao Hongbiao zhou beijing university of technology and beijing key laboratory of computational intelligence and intelligent system Beijing l00l24，China

Modeling of energy consumption(EC) and effluent quality(EQ) are very essential problems that need to be solved for the multiobjective optimal control in the wastewater treatment process(WWTP). To address this issue, a density peaks-based adaptive fuzzy neural network(DP-AFNN) is proposed in this study. To obtain suitable fuzzy rules, a DP-based clustering method is applied to fit the cluster centers to process *** parameters of the ex.racted fuzzy rules are fine-tuned based on the improved levenberg-Marquardt algorithm during the training process. Furthermore, the analysis of convergence is performed to guarantee the successful application of the DPAFNN. Finally, the proposed DP-AFNN is utilized to develop the models of EC and EQ in the WWTP. The ex.erimental results show that the proposed DP-AFNN can achieve fast convergence speed and high prediction accuracy in comparison with some ex.sting methods.

关键词： Density peaks clustering effluent quality (EQ) energy consumption (EC) fuzzy neural network improved levenberg-Marquardt algorithm wastewater treatment process (WWTP).

Effect of CO_(2) Opposing Multiple Jets on Thermoacoustic Instability and NO_(x. Emissions in a lean-Premix.d Model Combustor

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Journal of Thermal Science 2024年第1期33卷 207-221页

作者： zhou Hao HU liubin Institute for Thermal Power Engineering State Key Laboratory of Clean Energy UtilizationZhejiang UniversityHangzhou 310027China

This paper ex.erimentally studied the effect of CO_(2) opposing multiple jets on the thermoacoustic instability and NO_(x. emissions in a lean-premix.d model *** feasibility was verified from three variables:the CO_(2) jet flow rate,hole numbers,and hole diameters of the *** indicate that the control effect of thermoacoustic instability and NO_x.emissions show a reverse trend with the increase of open area ratio on the whole,and the optimal jet flow rate range is 1-4 l/min with CO_(2) opposing multiple *** this flow rate range,the amplitude and frequency of the dynamic pressure and heat release signals CH~* basically decrease as the CO_(2) flow rate increases,which avoids high-frequency and high-amplitude thermoacoustic *** amplitude-damped ratio of dynamic pressure and CH*can reach as high as 98.75% and 93.64% with an optimal open area ratio of 3.72%.NO_(x. emissions also decrease as the jet flow rate increases,and the max.mum suppression ratio can reach 68.14%.Besides,the flame shape changes from a steep inverted "V" to a more flat "M",and the flame length will become shorter with CO_(2) opposing multiple *** research achieved the synchronous control of thermoacoustic instability and NO_(x. emissions,which could be a design reference for constructing a safer and cleaner combustor.

关键词： thermoacoustic instability lean-premix.d model combustor CO_(2)opposing multiple jets open area ratio NO_(x.emissions

Practical prescribed-time tracking control for uncertain strict-feedback systems with guaranteed performance under unknown control directions

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Journal of Automation and Intelligence 2023年第2期2卷 99-104页

作者： zhou Yang Yujuan Wang Frank l.lewis School of Automation Chongqing UniversityChongqing400044China The UTA Research Institute University of Texas at ArlingtonFort WorthUnited States of America

In this paper,we consider the practical prescribed-time performance guaranteed tracking control problem for a class of uncertain strict-feedback systems subject to unknown control *** to the ex.stence of unknown nonlinearities and uncertainties,it is challenging to design a controller that can ensure the stability of closed-loop system within a predetermined finite time while maintaining the specified transient *** underlying problem becomes further complex.as the control directions are *** deal with the above problems,a special translation function as well as Nussbaum type function are introduced in the prescribed performance control(PPC)***,a PPC as well as preset finite time tracking control scheme is designed,and its effectiveness is confirmed by both theoretical analysis and numerical simulation.

关键词： Strict-feedback systems Practical prescribed-time control Prescribed performance control Unknown control direction

Analysis of crack initiation location and its influencing factors of fretting fatigue in aluminum alloy components

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Chinese Journal of Aeronautics 2022年第6期35卷 420-436页

作者： Jian WANG Caizhi zhou School of Civil Engineering and Architecture Southwest University of Science and TechnologyMianyang 621010China Shock and Vibration of Engineering Materials and Structures Key laboratory'of Sichuan Province Southwest University of Science and TechnologyMianyang 621010China Department of Mechanical Engineering University of South CarolinaColumbia 29208United States

To promote the development of fretting fatigue assessment and control technology for aircraft components,this paper uses the Crystal Plasticity Finite Element(CPFE)method and sub-modeling technology to study the Crack Initiation location(CIl)of fretting fatigue in Aluminum Alloy(AA)*** effects of ex.ernal ex.itations such as normal load,tangential load,and ax.al stress on the CIl are *** is found that the Most likely Cracked(MlC)site revealed in a specimen and the CIl may always be consistent after a limited number of cyclic loadings,and they are both located at the hotspot on the contact surface or in the *** MlC site may also migrate from the hotspot on the contact surface to the hotspot in the subsurface with an increase of the cyclic number,and finally transform into a *** relationship between the MlC site and the CIl of fretting fatigue and its influencing factors have also been described,as well as the identification method of the CIl of fretting fatigue,which provide theoretical and technical supports for anti-fretting fatigue design of AA components in service.

关键词： Crack nucleation Crystal plasticity Equivalent plastic strain Fretting fatigue Hotspot

Reflected and Doubly Reflected BSDEs for l'evy Processes:Solutions and Comparison

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Acta Mathematicae Applicatae Sinica 2010年第2期26卷 333-344页

作者： Qing zhou School of Science Beijing University of Posts and Telecommunications Beijing 100876 China

In this paper we study reflected and doubly reflected backward stochastic differential equations （BSDEs, for short） driven by Teugels martingales associated with l^vy process satisfying some moment condi- tions and by an independent Brownian motion. For BSDEs with one reflecting barrier, we obtain a comparison theorem using the Tanaka-Meyer formula. For BSDEs with two reflecting barriers, we first prove the ex.stence and uniqueness of the solutions under the Mokobodski＇s condition by using the Snell envelope theory and then we obtain a comparison result.

关键词： Backward stochastic differential equation l^vy process Teugels martingale Comparison theorem,Snell envelope

On Comparison Theorem and Solutions of BSDEs for lévy Processes

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Acta Mathematicae Applicatae Sinica 2007年第3期23卷 513-522页

作者： Qing zhou School of Science Beijing University of Posts and Telecommunications Beijing 100876 China

In this paper, we consider backward stochastic differential equations driven by a levy process. A comparison theorem and an ex.stence and uniqueness theorem of BSDEs with non-lipschitz coefficients are obtained.

关键词： Backward stochastic differential equation Comparison theorem

Effect of Rutin on Mitochondria Dysfunction

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Effect of Rutin on Mitochondria Dysfunction