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Simulation of rainfall-runoff and watershed convergence process in the upper reaches of Heihe River Basin,July 2002

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Science China Earth Sciences 2004年第z1期47卷 1-8页

作者： GAO Yanhong l.u) Shihua CHENG Guodong Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China Cold and Arid Regions Environmental and Engineering Research Institute Chinese Academy of Sciences Lanzhou 730000 China

The watershed flow concentration scheme in the distributed hydrology-soil- vegetation model (DHSVM) is coupled with the mesoscale atmospheric model MM5 version 3.5, in which the Oregen States university land surface model (OSulSM) was involved. The flood event which happened in July 2002 in the upper reaches of Heihe river basin is simulated and the surface flow convergence process is shown with this coupled model. It has been concluded that times water head reaches each place of the basin are different. Water amount at each point is split-flow proportionally as the drops in elevation between it and neighbor points. large part of the water amount pass away in greater slope direction and small part pass away in smaller slope *** of the slope convergence makes the atmospheric model redistributes the surface water laterally.

关键词： distributed hydrology-soil-vegetation model, mesoscale atmospheric model, watershed flow concentration process.

RATIONAl GENERAl SOluTIONS OF HIGHER ORDER AlGEBRAIC ODES

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Journal of Systems Science & Complexity 2013年第2期26卷 261-280页

作者： HuANG Yanli NG l X Chu WINKlER Franz School of Computer Science and Software Engineering Tianjin Polytechnic University Research Institute for Symbolic Computation(RISC) Johannes Kepler University Department of Mathematics Quy Nhon University

This paper generalizes the method of Ng6 and Winkler （2010, 2011） for finding rational general solutions of a first order non-autonomous algebraic ordinary differential equation （AODE） to the case of a higher order AODE, provided a proper parametrization of its solution hypersurface. The authors reduce the problem of finding the rational general solution of a higher order AODE to finding the rational general solution of an associated system. The rational general solutions of the original AODE and its associated system are in computable 1-1 correspondence. The authors give necessary and sufficient conditions for the associated system to have a rational solution based on proper reparametrization of invariant algebraic space curves. The authors also relate invariant space curves to first integrals and characterize rationally solvable systems by rational first integrals.

关键词： Algebraic ODE associated system invariant algebraic space curve rational first integral rational general solution.

The Addiction Profiles of Substance users with Comorbid Attention Deficit-Hyperactivity Disorder: The Comparison with Substance users without Comorbid Attention Deficit-Hyperactivity Disorder

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Journal of Behavioral and Brain Science 2016年第4期6卷 143-148页

作者： Suat Ekinci Hanife uğur Kural Merve yal.ınay Avrupa MYO Istanbul Turkey Fransiz lape Hospital The Clinic of Addiction Istanbul Turkey Koc university Istanbul Turkey

Objective: The aim of this study is to compare the addiction profiles of substance users with comorbid attention deficit-hyperactivity disorder (ADHD) and of those without attention-deficit hyper-activity disorder (ADHD) comorbidity. Method: 100 patients with substance use disorder (SuD) who continued to undergo inpatient treatment during September 2014-August 2015 in Private Balikli Rum Hospital were included in the study. Based on DSM-5 diagnostic criteria, 50 patients who have SuD with ADHD comorbidity were considered as study group, the other 50 patients with only SuD were evaluated as control group. Sociodemographic Data Form, Buss-Perry Aggression Questionnaire (BPAQ), Beck Depression Inventory (BDI), Beck Anxiety Inventory (BAI), Addiction Profile Index (BAPI), and Adult ADHD Self-Report Scale (ASRS ADHD) were given to the patients who participated to the study. Results: It was found that the age of onset for substance use was younger in a statistically significant manner in the patients who had SuD with comorbid ADHD (ADHD-SuD group) than the control group (SuD group) (t = 3.57, p = 0.001). Regarding to scores in the scales of these two groups, scores of aggression questionnaire (BPAQ) and craving subscale (BAPI) in ADHD-SuD group were significantly higher comparing to SuD group. Conclusion: In this study, it was revealed that the age of onset for substance use was younger in substance users with comorbid ADHD and that the level of aggression and craving was higher again in this group. Craving and level of aggression might have negative impacts on the treatment process. Therefore, we believe that it is essential to consider ADHD comorbidity in patients with substance use disorders.

关键词： Substance use Attention-Deficit Hyperactivity Addiction Profile

Chitin-glucan improves important pathophysiological features of irritable bowel syndrome

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World Journal of Gastroenterology 2024年第16期30卷 2258-2271页

作者： Caroline Valibouze Caroline Dubuquoy Philippe Chavatte Michaël Genin Veronique Maquet Salvatore Modica Pierre Desreumaux Christel Rousseaux Department of Digestive Surgery and Transplantation Lille UniversityLille 59037France Intestinal Biotech Development Facultéde MédicineLille 59045France u1286-INFINITE-Institute for Translational Research in Inflammation Universitéde LilleLille 59000France ulR 2694-METRICS Évaluation des Technologies de santéet des Pratiques MédicalesUniversity of LilleLille 59000France KitoZyme SA Institution SociétéAnonymeZone 2Parc des Hauts SartsRue de MilmortHerstal 4040Belgium Hepato-Gastroenterology Department Lille University HospitalLille 59037France

BACKGROuND Irritable bowel syndrome(IBS)is one of the most frequent and debilitating conditions leading to gastroenterological ***,recommended treatments remain limited,yielding only limited therapeutic ***-glucan(CG)is a novel dietary prebiotic classically used in humans at a dosage of 1.5-3.0 g/d and is considered a safe food ingredient by the European Food Safety *** provide an alternative approach to managing patients with IBS,we performed preclinical molecular,cel.ular,and animal studies to evaluate the role of chitin-glucan in the main pathophysiological mechanisms involved in *** To evaluate the roles of CG in visceral analgesia,intestinal inflammation,barrier function,and to develop computational molecular *** Visceral pain was recorded through colorectal distension(CRD)in a model of long-lasting colon hypersensitivity induced by an intra-rectal administration of TNBS[15 milligrams(mg)/kilogram(kg)]in 33 Sprague-Dawley *** pressure was regularly assessed during the 9 wk-experiment(weeks 0,3,5,and 7)in animals receiving CG(n=14)at a human equivalent dose(HED)of 1.5 g/d or 3.0 g/d and compared to negative control(tap water,n=11)and positive control(phloroglucinol at 1.5 g/d HED,n=8)*** anti-inflammatory effect of CG was evaluated using clinical and histological scores in 30 C57bl6 male mice with colitis induced by dextran sodium sulfate(DSS)administered in their drinking water during 14 ***-29 cells under basal conditions and after stimulation with lipopolysaccharide(lPS)were treated with CG to evaluate changes in pathways related to analgesia μ-opioid receptor(MOR),cannabinoid receptor 2(CB2),peroxisome proliferator-activated receptor alpha,inflammation[interl.ukin(Il)-10,Il-1b,and Il-8]and barrier function[mucin 2-5AC,cl.udin-2,zonula occludens(ZO)-1,ZO-2]using the real-time PCR *** modelling of CG,lPS,lipoteichoic acid(lTA),and phospholipomannan(PlM)was developed,and the abili

关键词： Chitin-glucan Irritable bowel syndrome Abdominal pain Inflammation Intestinal barrier Molecular modelling Microbial cell walls chelation

Focal distance tabu search

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Science China(Information Sciences) 2021年第5期64卷 5-16页

作者： Fred GlOVER Zhipeng lü Meta-Analytics Inc. School of Computer Science and Technology Huazhong University of Science and Technology

Focal distance tabu search modifies a standard tabu search algorithm for binary optimization by augmenting a periodic diversification step that drives the search away from a current best(or elite) solution until the objective function deteriorates beyond a specified threshold or until attaining a lower bound on the distance from the originating solution. The new augmented algorithm combines the threshold and lower bound approaches by introducing an initial focal distance for the lower bound which is updated when the diversification step is completed. However, rather than terminating the diversification step at the customary completion point, focal distance tabu search(TS) retains the focal distance bound through additional search phases designed to improve the objective function, drawing on a strategy proposed with strategic *** algorithm realizes this strategy by partitioning the variables into two sets which are managed together with an abbreviated tabu search process. An advanced version of the approach drives the search away from a collection of solutions rather than a single originating solution, introducing the concept of a signature solution to guide the search. The method can be employed to augment a variety of other metaheuristic algorithms such as those using threshold procedures, late acceptance hill climbing, iterated local search, breakout local search, GRASP, and path relinking.

关键词： tabu search diversification strategic oscillation adaptive partitioning metaheuristics

THE RIGHT TO EMPlOYMENT SECuRITY IN CHINESE lABOR lAW： lATEST DEVElOPMENTS IN lIGHT OF INTERNATIONAl lAW

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Frontiers of law in China-Selected Publications from Chinese universities 2015年第1期10卷 136-160页

作者： l.u Haina School of law Renmin University of China Beijing 100872 China

Employment security is very often examined from a labor law rather than a human rights perspective. This article looks at the employment security in Chinese labor law from a human rights perspective. The right to employment security includes both negative and positive aspects： a negative right to protection against unfair dismissal, including dismissal for cause and economic redundancy, and a positive right to employment stability. Comparing Chinese labor law with international standards, this article focuses on analyzing important changes in the legislative developments in China in the past years, such as severance pay, labor contract with indefinite duration, and labor dispatching. This article also points out the main deficiencies, such as dismissal on the ground of criminal liabilities, weakness of trade unions and law enforcement, and no exemption of small employers. The article concludes with observing a tendency of Chinese law getting closer to international standards and pointing out the approach China should follow： to enhance employability through vocational training and providing better social security when strengthening the legislative protection of employment security.

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Time Dependant Weld Shape in Ar-O_2 Shielded Stationary GTA Welding

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Journal of Materials Science & Technology 2007年第5期23卷 650-654页

作者： Shanping l.u Dianzhong lI Hidetoshi Fujii Kiyoshi Nogi Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 Chian Joining and Welding Research Institute Osaka University Osaka567-0047 Japan

The stationary gas tungsten arc welding （GTA） is carried out on SuS304 stainless steel.under Ar-0.1%O2 and Ar-0.3%O2 mixed shielding to observe the evolution of the molten pool and investigate the role of Marangoni convection on the weld shape. After welding, the oxygen content in the weld metal was measured by using an oxygen/nitrogen analyzer. Small addition of oxygen to the argon based shielding gas can effectively adjust the weld pool oxygen content. Oxygen plays an important role as an surface active element in determining the pattern of Marangoni convection in the stainless steel weld pool. When the weld metal oxygen content is over the critical value, 0.01 wt pct, corresponding to the Ar-0.3%O2 mixed shielding gas, the Marangoni convection changes from outward to inward direction and the weld shape dramatically changes from wide shallow shape to narrow deep shape.

关键词： Marangoni convection Oxygen Weld shape

All-optical image denoising using a diffractive visual processor

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light(Science & Applications) 2024年第3期13卷 429-445页

作者： Çağatay Işıl Tianyi Gan Fazil Onuralp Ardic Koray Mentesoglu Jagrit Digani Huseyin Karaca Hanlong Chen Jingxi li Deniz Mengu Mona Jarrahi Kaan Akşit Aydogan Ozcan Electrical and Computer Engineering Department University of CaliforniaLos AngelesCA 90095USA Bioengineering Department University of CaliforniaLos AngelesCA 90095USA California NanoSystems Institute(CNSI) University of CaliforniaLos AngelesCA 90095USA university College london Department of Computer ScienceLondonUnited Kingdom

Image denoising,one of the essential inverse problems,targets to remove noise/artifacts from input *** general,digital image denoising algorithms,executed on computers,present latency due to several iterations implemented in,e.g.,graphics processing units(GPus).While deep learning-enabled methods can operate non-iteratively,they also introduce latency and impose a significant computational burden,leading to increased power ***,we introduce an analog diffractive image denoiser to all-optically and non-iteratively clean various forms of noise and artifacts from input images–implemented at the speed of light propagation within a thin diffractive visual processor that axially spanslength of *** all-optical image denoiser comprises passive transmissive layers optimized using deep learning to physically scatter the optical modes that represent various noise features,causing them to miss the output image Field-of-View(FoV)while retaining the object features of *** results show that these diffractive denoisers can efficiently remove salt and pepper noise and image rendering-related spatial artifacts from input phase or intensity images while achieving an output power efficiency of~30–40%.We experimentally demonstrated the effectiveness of this analog denoiser architecture using a 3D-printed diffractive visual processor operating at the terahertz *** to their speed,power-efficiency,and minimal computational overhead,all-optical diffractive denoisers can be transformative for various image display and projection systems,including,e.g.,holographic displays.

关键词： remove rendering holographic

AlGORITHM AND IMPlEMENTATION OF AuTO-SEARCHING WElD lINE FOR WElDING MOBIlE ROBOT

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Chinese Journal of Mechanical Engineering 2006年第2期19卷 176-180页

作者： ZHANG Ke lü Xueqin　 Wu Yixiong l.u Songnian Institute of Welding Engineering Shanghai Jiaotong UniversityShanghai 200030 China

An algorithm of auto-searching weld line for welding mobile robot is presented. Auto-searching weld line is that the robot can automatically recognize a weld groove according to the characteristics of the weld groove before welding, and then adjust itself posture to the desired status preparing for welding, namely, it is a process that the robot autonomously aligns itself to the center of welding seam. Firstly, the configuration of welding mobile robot with the function of auto-searching weld line is introduced, then the algorithm and implementation of auto-searching weld line are presented on the basis of kinematics model of the robot, at last trajectory planning among auto-searching weld line is investigated in detail. The experiment result shows that the developed welding mobile robot can successfully implement the task of auto-searching weld line before welding, tracking error precision can be controlled to approximate ±1.5 mm, and satisfy the requirement of practical welding project.

关键词： Welding mobile robot Auto-searching weld line Trajectory planning