检索结果-南通市图书馆

A Specialization of Prinjective Ringel-Hall Algebra and the associated Lie algebra

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Sinica,English Series 2008年第10期24卷 1687-1702页

作者： justyna KOSAKOWSKA Faculty of Mathematics and Computer Science Nicolaus Copernicus Universityul. Chopina 12//18 87-100 Toru■ Poland

In the present paper we describe a specialization of prinjective Ringel-Hall algebra to 1, for prinjective modules over incidence algebras of posets of finite prinjective type, by generators and relations. This gives us a generalisation of Serre relations for semisimple Lie algebras. Connections of prinjective Ringel-Hall algebras with classical Lie algebras are also discussed.

关键词： Ringel-Hall algebras Lie algebras prinjective modules poset representations

在线全文

学校读者我要写书评

暂无评论

伊森伯格管理学院商业创新中心

当代建筑 2020年第2期 122-127页

作者：无 Yu Inamoto Pauline Lavie-Luong Hung Kai Liao Alice Cladet Amina Blacksher Barbara Stallone Cheyenne Vandevoorde Daniel Kidd Davide Maggio Deborah Campbell Denys Kozak Derek Wong Domenic Schmid Douglass Alligood Elena Bresciani Emily Mohr Fabian Lorenz Francesca Portesine Ibrahim Salman Jan Leenknegt justyna mydlak Kai-Uwe Bergmann Ku Hun Chung Linda Halim Lucas Hong Manon Otto Maria Eugenia Dominguez Mustafa Khan Nicolas Gustin Pei Pei Yang Peter Lee Seoyoung Shin Simon Lee Terrence Chew Tianqi Zhang Yixin Li BIG建筑事务所不详

位于马萨诸塞州艾摩斯特市的商业创新中心外墙为覆铜设计,极具现代艺术之感。该建筑为伊森伯格管理学院(全美排名前30的公立商学院)增加了7万***(约为0.6万m2)的超协作研究与社交空间。此次扩建和部分翻新使得伊森伯格管理学院的既有空... 详细信息

位于马萨诸塞州艾摩斯特市的商业创新中心外墙为覆铜设计,极具现代艺术之感。该建筑为伊森伯格管理学院(全美排名前30的公立商学院)增加了7万***(约为0.6万m2)的超协作研究与社交空间。此次扩建和部分翻新使得伊森伯格管理学院的既有空间几乎扩大了一倍,不仅能够满足该学院在过去十年间的快速发展需求,同时也为学院150多名教职人员和5000名本科、硕士及博士生引进了新的设施。

关键词：商业创新教职人员马萨诸塞州协作研究外墙社交空间伊森商学院

A VARIATIONAL-HEMIVARIATIONAL INEQUALITY IN CONTACT PROBLEM FOR LOCKING MATERIALS AND NONMONOTONE SLIP DEPENDENT FRICTION

在线全文

学校读者我要写书评

暂无评论

Acta Mathematica Scientia 2017年第6期37卷 1639-1652页

作者： Stanistnw MIGORSKI justyna OGORZALY Chair of Optimization and Control Jagiellonian University in KrakSwul.Lojasiewicza 630348 KrakdwPoland Faculty of Mathematics and Computer Science Jagiellonian University in Krakowul.Lojasiewicza 630348 KrakowPoland

We study a new class of elliptic variational-hemivariational inequalities arising in the modelling of contact problems for elastic ideally locking materials. The contact is described by the Signorini unilateral contact condition and the friction is modelled by the nonmonotone multivalued subdifferential condition which depends on the slip. The problem is governed by a nonlinear elasticity operator, the subdifferential of the indicator function of a convex set which describes the locking constraints and a nonconvex locally Lipschitz friction potential. The result on existence and uniqueness of solution to the inequality is shown. The proof is based on a surjectivity result for maximal monotone and pseudomonotone operators combined with the application of the Banach contraction principle.

关键词： variational-hemivariational inequality Clarke subdifferential locking material unilateral constraint nonmonotone friction

Experimental analysis of ballistic trauma in a human body protected with 30 layer packages made of biaxial and triaxial Kevlar^(■)29 fabrics

在线全文

学校读者我要写书评

暂无评论

Defence Technology（防务技术） 2023年第3期21卷 73-87页

作者： justyna Pinkos Zbigniew Stempien Anna Smędra Institute of Textile Architecture Lodz University of TechnologyLodzPoland Chair and Department of Forensic Medicine Medical University of LodzLodzPoland

Behind armour blunt trauma(BABT)is a body injury resulting from the deformation of the back surface of armour as a result of a bullet *** the case of textile body armour,the severity of the injury may depend on the material of the fibres,but also on the geometric structure of the *** article focuses on experimental research into injuries of the human body protected by ballistic packets made of biaxial and triaxial fabrics,during a non-penetrating impact from a Parabellum 9 mm×19 mm Full Metal Jacket(FMJ)bullet,at a speed of 406±5 m/*** experimental research,the fabrics had a comparable surface weight and were made of the same Kevlar^(■)29 *** ballistic packages were made of 30 *** part of the work,a physical model of the human body was *** human body model consisted of a model of the heart,lungs,and skeletal and muscular *** the bullet impact,the pressure forces were recorded using sensors located at selected points of the human *** bullets hit five selected places on the body that were considered critical,from the point of view of maintaining a human’s vital *** was found that,during firing,pressure increases both at the site of impact and in the internal organs,which can lead to multi-organ *** a result of the experimental analysis,it has been shown that the pressures exerted on specific organs are always lower in the case of body protection with a ballistic packet made of triaxial fabrics,compared to a packet made of biaxial fabrics.

关键词： protected impact organs

Hybrid Straw/Perlite Reinforced Natural Rubber Biocomposites

在线全文

学校读者我要写书评

暂无评论

Journal of Bionic Engineering 2019年第6期16卷 1127-1142页

作者： Marcin Maslowski justyna Miedzianowska Krzysztof Strzelec Institute of Polymer&Dye Technology Lodz University of TechnologyStefanowskiego 12/1690-924 LodzPoland

The purpose of the work is to prepare and characterize hybrid fillers of cereal straw perlite as well as to examine their impact on the functional properties of elastomeric *** rubber was used as the polymer matrix,vulcanized with a sulfuric crosslinking *** subject matter of the work included an interdisciplinary knowledge segment in the field of polymertechnology—hybrid *** work investigated the effect of physical(mecha nical)modificatio n of ligno cellulosic *** process of milling and homogenization of cereal straw with the addition of perlite was carried out in a planetary ball *** properties of biocomposites were examined in terms of two key aspects:The amount of hybrid filler and its ratio(cereal straw to natural mineral).The plate-like structure of natural minerals and the fibrous structure of cereal straw created a two-component filler,which influenced the properties of the produced biomaterials.A significant improvement in barrier,crosslinking density,hardness,mechanical and damping properties has been noted for systems containing hybrid ***,all vulcanizates proved to be resistant to the nnooxidative ***,the straw modificated with perlite fonned a more complex structure in the composites,resulting in a stronger reinforcing effect,which was confirmed by dynamic-mechanical analysis(Payne effect).

关键词： hybrid fillers straw perlite biocomposites natural rubber

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

伊森伯格管理学院商业创新中心

城市环境设计 2019年第2期118卷 54-61页

作者： Alice Cladet Amina Blacksher Barbara Stallone Beat Schenk Cheyenne Vandevoorde Daniel Kidd Davide Maggio Deborah Campbell Denys Kozak Derek Wong Domenic Schmid Douglass Alligood Elena Bresciani Emily Mohr Fabian Lorenz Francesca Portesine Ibrahim Salman Jan Leenknegt justyna mydlak Kai-Uwe Bergmann Kristoffer Negendahl Ku Hun Chung Linda Halim Lucas Hong Manon Otto Maria Eugenia Dominguez Mustafa Khan Nicolas Gustin Pei Pei Yang Peter Lee Seoyoung Shin Simon Lee Terrence Chew Tianqi Zhang Tore Banke Yehezkiel Wiliardy Yixin Li Max Touhey Laurian Ghinitoiu 曲鸿

这座有着铜质外观的商业创新中心坐落于马萨诸塞大学阿默斯特分校的核心地带,是由BIG建筑事务所和建筑师Goody Clancy共同设计的。它的建成为这所全美排名前30的商学院增加了70000平方英尺(约6503平方米)的学习合作和社交的空间。新的... 详细信息

这座有着铜质外观的商业创新中心坐落于马萨诸塞大学阿默斯特分校的核心地带,是由BIG建筑事务所和建筑师Goody Clancy共同设计的。它的建成为这所全美排名前30的商学院增加了70000平方英尺(约6503平方米)的学习合作和社交的空间。新的扩建和部分翻新使伊森伯格管理学院现有的空间扩大了近一倍,为学院过去十

关键词：建筑事务所阿默斯特商业创新

Tectonic control on slow-moving Andean landslides in the Colca Valley,Peru

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

Journal of Mountain Science 2020年第8期17卷 1807-1825页

作者： Krzysztof GAIDZIK Jerzy zABA justyna CIESIELCZUK Institute of Earth Sciences University of SilesiaBedziniska 6041-200 SosnowiecPoland

The Colca Valley in the Central Andes is a region characterized by the occurrence of large slow-moving landslides and a high level of seismic *** this study,we aimed to determine passive and active tectonic control on the formation of selected five large landslides in the Colca Valley and to assess geohazard associated with these *** that purpose,we performed a post-landslide field survey,applied remote sensing techniques,and obtained eyewitness ***,the need to understand mass movement processes in this region is even higher due to the establishment of the Colca y Volcanes de Andagua Geopark(Colca and Andagua Volcanoes Geopark).Our results suggest that the studied landslides usually represent a complex failure mechanism,dominated by translational sliding or rotational displacements,commonly associated with the formation of horst-and-graben like *** found a spatial correlation between the distribution of landslides and inherited fault *** head scarps appear to be limited by the WNW-to NW-striking faults,whereas the lateral extent of some of the reported features seems to be connected with the NNE-striking normal faults,common in both,the Mesozoic strata and the Pleistocene-Holocene deposits.

关键词： Landslide Geohazard Tectonic activity Earthquake Central Andes Peru

Sorption of lanthanide ions on biochar composites

在线全文

学校读者我要写书评

暂无评论

Journal of Rare Earths 2018年第11期36卷 1212-1220页

作者： Dorota Kotodyniska justyna Bak Malwina Majdariska Dominika Fila Department of Inorganic Chemistry Faculty of ChemistryMaria Curie-Sktodowska UniversityM.Curie Sktodowska 5q.220-031 tublinPoland

Sorption of lanthanum（Ⅲ）, cerium（Ⅲ and neodymium（Ⅲ） ions from the aqueous solutions of mixtures through adsorption on the biochar composites was investigated as a function of sorbent mass, pH, phase contact time and initial concentration of solutions at 295 K. The maximum removal of lanthanide ions takes place under the following conditions： 0.1 g of sorbent mass, pH 4 and 360 rain contact time for all studied initial concentrations of solutions. Kinetics of La（Ⅲ）, Ce（Ⅲ） and Nd（Ⅲ） ions sorption proceeded by a fast initial uptake reached equilibrium. This process was modelled by means of the pseudo first order, pseudo second order, intraparticle diffusion and Elovich models. The desorption of three lanthahide ions by nitric, hydrochloric and sulfuric acids at a concentration of 1 mol/L from biochar composites was also studied. In order to investigate the sorption mechanism FFIR, XRD and XPS analyses were performed after sorption of ions from the mixture.

关键词： Lanthanide ions Biochar composites Sorption mechanism Zerovalent iron Rare earths

Decreased serum prohepcidin concentration in patients with polycythemia vera

在线全文

学校读者我要写书评

暂无评论

Journal of Zhejiang University-Science B(Biomedicine & Biotechnology) 2009年第11期10卷 791-795页

作者： justyna KWAPISZ Ewa ■EKANOWSKA Joanna JASINIEWSKA Department of Pathophysiology Nicolaus Copernicus University in ToruńCollegium Medicum in Bydgoszcz

Objective： Iron deficiency is a common complication in patients with polycythemia vera （PV）. Hepcidin is a principal regulator of iron homeostasis. The aim of our study was to assess prohepcidin, a hepcidin precursor, and other iron status pa- rameters in the serum of PV patients. Methods： The study was performed in 60 patients （F/M 26/34） aged 38-84 （66＋ 10） years. The control group consisted of 20 healthy volunteers, age and sex matched. The following parameters were determined in blood serum samples： prohepcidin concentration, iron content, unsaturated iron binding capacity （UIBC）, total iron binding capacity （TIBC）, transferrin saturation （TfS）, and concentrations of ferritin and soluble transferrin receptor （sTfR）. Results： All PV patients showed significantly lower levels of prohepcidin, higher levels of sTIR and TIBC compared to the control group. 40% of the patients from the study group showed concentrations of ferritin below the normal range and significantly lower levels of serum iron and TfS, and significantly higher levels of sTIR, UIBC and TIBC in comparison with the rest of the study group. In this group of patients, prohepcidin concentrations were significantly lower than those in other patients. Conclusion： The results indicate that PV patients suffer from iron metabolism disorders. The decreased serum level ofprohepcidin in PV patients may be a result of iron deficiency.

关键词： Polycythemia vera (PV) Iron metabolism Prohepcidin Hepcidin