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Use of genetic algorithm in new approach to modeling of flood routing

Journal of Oceanology and Limnology 2019年第1期37卷 72-78页

作者： EL ALAOUI EL FELS Abdelhafid alaa Noureddine BACHNOU Ali Laboratory of Geosciences and Environnement Department of Earth Sciences Faculty of Science and Technics Gueliz (P. B. 549) Cadi Ayyad University Laboratory Applied Mathematics and Informatics Department of Math and Informatics Faculty of Science and Technics Gueliz (P. B. 549) Cadi Ayyad University

The hydrological models and simpli?ed methods of Saint-venant equations are used extensively in hydrological modeling, in particular for the simulation of the ?ood routing. These models require speci?c and extensive data that usually makes the study of ?ood propagation an arduous practice. We present in this work a new model, based on a transfer function, this function is a function of parametric probability density, having a physical meaning with respect to the propagation of a hydrological signal. The inversion of the model is carried out by an optimization technique called Genetic Algorithm. It consists of evolving a population of parameters based primarily on genetic recombination operators and natural selection to?nd the minimum of an objective function that measures the distance between observed and simulated data. The precision of the simulations of the proposed model is compared with the response of the Hayami model and the applicability of the model is tested on a real case, the N'Fis basin river, located in the High Atlas Occidental, which presents elements that appear favorable to the study of the propagation. The results obtained are very satisfactory and the simulation of the proposed model is very close to the response of the Hayami model.

关键词： Genetic Algorithm flood routing Hayami model simulation propagation

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MOLECULAR　MECHANICAL　AND　QUANTUM　CHEMICAL　CALCULATION　ON　ACYLATION　REACTIVITY　FOR　1－（NITRO　SUBSTITUTed　ANILINO）－4－SUBSTITUTed－2，6－PIPERAZINedIONES

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Chinese Chemical Letters 1995年第8期6卷 691-694页

作者： Jiang, HL Li, Q Chen, KX Tang, Y Shen, X Ji, ry Xie, YY Chinese Acad Sci Shanghai Inst Mat Med Shanghai 200031 Peoples R China

Molecular mechanical and quantum chemical methods were used to calculate the conformational and electronic structures of the template molecules of (nitro substituted an ill no)-4 - sub st nut ed -2, 6 -piperazinediones, With the calculation results we explained the acylation reactivity of title compounds satisfactorily.

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Chronic kidney disease severely deteriorates the outcome of gastrointestinal bleeding: A meta-analysis

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World Journal of Gastroenterology 2017年第47期23卷 8415-8425页

作者： Roland Hágendorn Nelli Farkas Aron Vincze Zoltán Gyongyi Dezso Csupor Judit Bajor Bálint Eross Péter Csécsei Andrea Vasas Zsolt Szakács László Szapáry Péter Hegyi Alexandra Mikó Department of Gastroenterology First Department of MedicineUniversity of Pécs Institute of Bioanalysis University of Pécs Department of Public Health Medicine University of Pécs Department of Pharmacognosy Faculty of PharmacyUniversity of Szeged Institute for Translational Medicine University of Pécs Department of Neurology University of Pécs

AIM To understand the influence of chronic kidney disease(CKD) on mortality, need for transfusion and rebleeding in gastrointestinal(GI) bleeding *** A systematic search was conducted in three databases for studies on GI bleeding patients with CKD or endstage renal disease(ESRD) with data on outcomes of mortality, transfusion requirement, rebleeding rate and length of hospitalization(LOH). Calculations were performed with Comprehensive Meta-Analysis software using the random effects model. Heterogeneity was tested by using Cochrane's Q and I2 statistics. Mean difference(MD) and OR(odds ratio) were ***1063 articles(EMBASE: 589; PubM ed: 459; Cochrane: 15) were found in total. 5 retrospective articles and 1 prospective study were available for analysis. These 6 articles contained data on 406035 patients, of whom 51315 had impaired renal function. The analysis showed a higher mortality in the CKD group(OR = 1.786, 95%CI: 1.689-1.888, P eding rate(OR = 2.510, 95%CI: 1.521-4.144, P ed renal function. CKD patients required more unit red blood cell transfusion(MD = 1.863, 95%CI: 0.812-2.915, P ed for transfusion, rebleeding rate and LOH among GI bleeding patients. Prospective patient registries and observational clinical trials are crucially needed.

关键词： Gastrointestinal bleeding Chronic kidney disease Mortality Blood transfusion Rebleeding

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胸片的深度学习分析以分诊急性胸痛综合征病人

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国际医学放射学杂志 2023年第2期 238-238页

作者： M.Kolossváry V.K.Raghu J.T.Nagurney U.Hoffmann M.T.Lu 韩丽珠

摘要急诊科（ed）病人出现急性胸痛（ACP）综合征时需进行额外的检查以排除急性冠状动脉综合征（ACS）、肺栓塞（PE）或主动脉夹层（AD），而通常该检查结果为阴性。目的

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