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The Njiki’s Fundamental Theorem-Definition on Fractions in the Mathematical Set ℚ and by Extension in ℝ and ℂ, for the Purpose of Leading to the Construction of Some Algebraic Structures as Its Theoretical Applications and for the Practical Ones

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American Journal of Computational Mathematics 2024年第3期14卷 358-379页

作者： jean claude Njiki Independent Researcher Yaound Cameroon

The purpose of the research in the NJIKI’s fundamental THEOREM-DEFINITION on fractions in the mathematical set ℚand by extension in ℝand ℂand in order to construct some algebraic structures is about the proved EXISTENCE and the DEFINITION by NJIKI of two INNOVATIVE, IMPORTANT and TEACHABLE operations of addition or additive operations, in ℚ, marked ⊕and +α,β, and taken as VECTORIAL, TRIANGULAR, of THREE or PROPORTIONAL operations and in order to make THEM not be different from the RATIONAL ONE, +, but to bring much more and new information on fractions, and, by extension in ℝand ℂ. And the very NJIKI’s fundamental THEOREM-DEFINITION having many APPLICATIONS in the everyday life of the HUMAN BEINGS and without talking about computer sciences, henceforth being supplied with very interesting new ALGORITHMS. And as for the work done in the research, it will be waiting for its extension to be done after publication and along with the research results concerned.

关键词： Operations of Addition Additive Operations in ℚ Laws in ℚ THEOREM-DEFINITION External Multiplication

LA REVOLUTION FRANCAISE ET LA CONQUETE DE L'OPION PUBLIQUE

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法国研究 1989年第4期 90-96页

作者： jean-claude Bonnet

Plus que la prise de 1a Bastille, du 20 juin 1789 les du-rent se dans la salle d＇un jen de paume et y firent le serment de ne plusse , rut le coup de force contre tout l＇appareil de la monarchic. llengagea un pr... 详细信息

关键词： Pr LA REVOLUTION FRANCAISE ET LA CONQUETE DE L’OPION PUBLIQUE ET DE

Chemokine system polymorphisms, survival and hepatocellular carcinoma occurrence in patients with hepatitis C virus-related cirrhosis

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World Journal of Gastroenterology 2008年第5期14卷 713-719页

作者： Pierre Nahon Angela Sutton Pierre Rufat Chantal Simon jean-claude Trinchet Liliane Gattegno Michel Beaugrand Nathalie Charnaux Department of Hepatology Jean Verdier Hospital (AP-HP) Bondy 93140 France Department of Biochemistry Jean Verdier Hospital (AP-HP) Bondy 93140 France Department of Public Health Pitié-Salpetrière Hospital (AP-HP) Paris 75013 France

AIM： To explore the influence of polymorphisms in genes encoding for the chemokines Stromal cell-Derived Factor-1 （SDF-1）/CXCL12 and Monocyte Chemotactic Protein-1 （MCP-1）/CCL2, or for the chemokine receptor CCR5 on the risks of liver-related death and hepatocellular carcinoma （HCC） occurrence in hepatitis C virus （HCV）-infected patients. METHODS： SDF-1 3＇A, MCP-1 （-2518） and CCRS-△32 polymorphisms, SDF-1α, Regulated upon Activation Normal T cells Expressed and Secreted （RANTES）/CCL5 and MCP-1 serum levels were determined in 120 HCV- infected patients, included at time of cirrhosis diagnosis and prospectively followed-up. RESULTS： During follow-up, 23/120 （19.1%） patients died and 47/120 （39.1%） developed HCC. Carriers and noncarriers of each genetic marker had similar baseline characteristics estimating the severity of liver disease. The occurrence of death or HCC during follow-up was similar among carriers and noncarriers of each polymorphism. There was no association between the carriage of mutated alleles and chemokine serum levels and the latter were not associated with the risks of death or HCC. CONCLUSION： This study suggests the lack of association of SDF-1 3＇A, MCP-1 （-2518）, CCRS-△32 polymorphisms with death and HCC occurrence in cirrhotic HCV-infected patients.

关键词： Chemokine Polymorphism Cirrhosis Hepatocarcinoma Hepatitis C virus

Automatic sub-pixel co-registration of Landsat-8 Operational Land Imager and Sentinel-2A Multi-Spectral Instrument images using phase correlation and machine learning based mapping

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International Journal of Digital Earth 2017年第12期10卷 1253-1269页

作者： Sergii Skakun jean-claude Roger Eric F.Vermote Jeffrey G.Masek Christopher O.Justice Department of Geographical Sciences University of MarylandCollege ParkMDUSA NASA Goddard Space Flight Center Code 619 GreenbeltMDUSA NASA Goddard Space Flight Center Code 618 GreenbeltMDUSA

This study investigates misregistration issues between Landsat-8/Operational Land Imager and Sentinel-2A/Multi-Spectral Instrument at 30 m resolution,and between multi-temporal Sentinel-2A images at 10 m resolution using a phase-correlation approach and multiple transformation ***-registration of 45 Landsat-8 to Sentinel-2A pairs and 37 Sentinel-2A to Sentinel-2A pairs were *** correlation proved to be a robust approach that allowed us to identify hundreds and thousands of control points on images acquired more than 100 days ***,misregistration of up to 1.6 pixels at 30 m resolution between Landsat-8 and Sentinel-2A images,and 1.2 pixels and 2.8 pixels at 10 m resolution between multi-temporal Sentinel-2A images from the same and different orbits,respectively,were *** non-linear random forest regression used for constructing the mapping function showed best results in terms of root mean square error(RMSE),yielding an average RMSE error of 0.07±0.02 pixels at 30 m resolution,and 0.09±0.05 and 0.15±0.06 pixels at 10 m resolution for the same and adjacent Sentinel-2A orbits,respectively,for multiple tiles and multiple conditions.A simpler 1st order polynomial function(affine transformation)yielded RMSE of 0.08±0.02 pixels at 30 m resolution and 0.12±0.06(same Sentinel-2A orbits)and 0.20±0.09(adjacent orbits)pixels at 10 m resolution.

关键词： Sub-pixel co-registration phase correlation misregistration Landsat-8 Sentinel-2 machinelearning random forest

Double ischemic ileal stenosis secondary to mesenteric injury after blunt abdominal trauma

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World Journal of Gastroenterology 2008年第1期14卷 143-145页

作者： Valérie Bougard claude Avisse Martine Patey Denis Germain Nathalie Levy-Chazal jean-Franois Delattre Service de Chirurgie Viscérale Digestive et Endocrinienne CHU Reims Hpital Robert Debré Reims France Martine Patey Laboratoire Central d’Anatomie et de Cytologie Pathologiques CHU Reims Hpital Robert Debré Reims France Denis Germain Laboratoire Photographique CHU ReimsHpital Robert Debré Reims France

The authors describe a rare case in which blunt abdominal trauma resulted in mesenteric injury with delayed double ischemic ileal stenosis. Abdominal computed tomography demonstrated stenotic ileal loop with mural thickening. At surgery, a double stenotic bowel loop was found adjacent to a healed defect in the mesentery. Histological examination of the two resected segments showed fibrotic and ischemic lesions within the mesentery. Ischemic intestinal stenosis from mesenteric injury should be considered in the differential diagnosis in patients suffering from intestinal occlusion with a history of blunt abdominal trauma.

关键词： Blunt abdominal trauma Mesenteric injury Intestinal stenosis Obstruction

Computational design for 4D printing of topology optimized multi-material active composites

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npj Computational Materials 2023年第1期9卷 2342-2350页

作者： Darshan Athinarayanarao Romaric Prod’hon Dominique Chamoret H.Jerry Qi Mahdi Bodaghi jean-claude André Frédéric Demoly ICB UMR 6303 CNRS Univ.Bourgogne Franche-ComtéUTBM90010 BelfortFrance The George W.Woodruff School of Mechanical Engineering Georgia Institute of TechnologyAtlantaGA 30332USA Department of Engineering School of Science and TechnologyNottingham Trent UniversityNottingham NG118NSUK LRGP UMR 7274 CNRS University of LorraineNancyFrance

Recent efforts on design for four-dimensional(4D)printing have considered the spatial arrangement of smart materials and energy *** development of multifunctional structures and their desired mechanical/actuation performances require tackling 4D printing from a multi-material design *** the materials distributions there is an opportunity to increase the spectrum of design concepts with computational *** main goal being to achieve the“best”distribution of material properties in a voxelized structure,a computational framework that consists of a finite element analysis-based evolutionary algorithm is *** fuses the advantages of optimizing both the materials distribution and material layout within a design space via topology optimization to solve the inverse design problem of finding an optimal design to achieve a target shape change by integrating void *** results demonstrate the efficacy of the proposed method in providing a highly capable tool for the design of 4D-printed active composites.

关键词： composites printing topology

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氧化铝陶瓷粉末固相烧结过程模拟

西南交通大学学报 2008年第2期43卷 275-279页

作者：宋久鹏 BARRIERE Thierry 柳葆生 GELIN jean-claude 西南交通大学应用力学与工程系四川成都610031 Femto-ST研究所应用力学实验室法国贝桑松25000

用膨胀计测量了氧化铝粉末注射成形的烧结过程中试件的单轴收缩率和收缩速率.基于试验数据,设计了相应的参数标定算法,用于确定烧结模型中的单轴粘度和烧结应力.以氧化铝人工髋关节植体为例,将该模型和参数引入到有限元软件Abaqus中实... 详细信息

用膨胀计测量了氧化铝粉末注射成形的烧结过程中试件的单轴收缩率和收缩速率.基于试验数据,设计了相应的参数标定算法,用于确定烧结模型中的单轴粘度和烧结应力.以氧化铝人工髋关节植体为例,将该模型和参数引入到有限元软件Abaqus中实现数值模拟,以预测试件在烧结过程中的收缩和变形.结果表明,用标定的参数的模拟结果与试验结果基本吻合.

关键词：烧结注射成形收缩率氧化铝陶瓷标定数值模拟

Heat inactivation of the severe acute respiratory syndrome coronavirus 2

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Journal of Biosafety and Biosecurity 2021年第1期3卷 1-3页

作者： Christophe Batéjat Quentin Grassin jean-claude Manuguerra India Leclercq Institut Pasteur UnitéEnvironnement et Risques InfectieuxCellule d’Intervention Biologique d’Urgence(CIBU)28 rue du Dr.RouxParisFrance Universitéde Paris Cellule Pasteur28 rue du Dr.Roux F-75015 ParisFrance

Cell culture medium,nasopharyngeal and sera samples spiked with SARS-CoV-2 were subjected to heat inactivation for various periods of time,ranging from 30 s to 60 *** results showed that SARS-CoV-2 could be inactivated in less than 30 min,15 min,and 3 min at 56℃,65℃,and 95℃,*** data could help laboratory workers to improve their protocols by handling the virus in biosafety conditions.

关键词： Heat Inactivation SARS-CoV-2 Covid-19

Use of Irregular Wood Components to Design Non-Standard Structures

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Journal of Civil Engineering and Architecture 2023年第6期17卷 307-313页

作者： jean claude Bignon MAP/CRAI ENSA Nancy 54000 NancyFrance

This project deals with architecture and engineering involved in the process of architectural *** on native irregular components,it aims at developing an innovative approach in the conception and rationalization of non-standard *** architecture and its non-classical structures require the design of customized *** process which is highly energy and resources consumptive does not always take into account the inherent material *** project develops a way of optimizing,in architectural structures,the use of native wood pieces that are not industrially transformed(***)or of reused pieces of *** a consequence,the ecological footprint of the structures would be reduced.

关键词： Architecture timber structure native irregular resources environmental foot-print