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The Semigroup of Surjective Transformations on an Infinite Set

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Algebra Colloquium 2019年第1期26卷 9-22页

作者： Janusz konieczny Department of Mathematics University of Mary Washington Fredericksburg VA 22401 USA

For an infinite set X, denote by Ω(X) the semigroup of all surjective mappings from X to X. We determine Green's relations in Ω(X), show that the kernel (unique minimum ideal) of Ω(X) exists and det ermine its elemen ts and cardinali ty. For a cou ntably infinite set X, we describe the elements of Ω(X) for which the D-class and J-class coincide. We compare the results for Ω(X) with the corresponding results for other transformation semigroups on X.

关键词： transformation semigroups surjective transformations Green's relations kernels

Preliminary study of acrylamide monomer decomposition during methane fermentation of dairy waste sludge

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Journal of Environmental Sciences 2016年第7期28卷 108-114页

作者： Ewelina Mroczek Piotr konieczny Andrzej Lewicki Agnieszka Waskiewicz Jacek Dach Department of Food Quality Management Poznań University of Life Sciences Institute of Biosystems Engineering Poznań University of Life Sciences Department of Chemistry Poznań University of Life Sciences

Polyacrylamide（PAM） used in sludge dewatering exists widely in high-solid anaerobic digestion. Acrylamide is registered in the list of chemicals demonstrating toxic, carcinogenic and mutagenic properties. Therefore, it is reasonable to ask about the mobility of such residual substances in the environment. The study was carried out to assess the impact of the mesophilic（39 ± 1°C） and thermophilic（54 ± 1°C） fermentation process on the level of acrylamide monomer（AMD） content in the dairy sludge. The material was analysed using high-performance liquid chromatography（HPLC） for quantification of AMD. The results indicate that the process of methane fermentation continues regardless of the temperature effects on the degradation of AMD in dairy sludge. The degree of reduction of acrylamide monomer for thermophilic fermentation is 100%, while for mesophilic fermentation it is91%. In practice, this means that biogas technology eliminates the risk of AMD migration to plant tissue. Moreover, it should be stressed that 90% of cumulative biogas and methane production was reached one week earlier under thermophilic conditions — the dynamics of the methanisation process were over 20% faster.

关键词： Acrylamide monomer Dairy sludge Anaerobic digestion PAM

Electrical transport in low-lead (1-x)BaTiO_(3)–xPbMg_(1/3)Nb_(2/3)O_(3) ceramics

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Journal of Advanced Ceramics 2017年第3期6卷 207-219页

作者： J.SUCHANICZ K.konieczny K.SWIErCZEK M.LIPINSKI M.KArPIErZ D.SITKO H.CZTErNASTEK K.KLUCZEWSKA Institute of Technology Pedagogical Universityul.Podchorazych 230-084 KrakowPoland Department of Hydrogen Energy Faculty of Energy and FuelsAGH University of Science and Technologyal.Mickiewicza 3030-059 KrakowPoland Institute of Metallurgy and Materials Science Polish Academy of Sciencesul.Reymonta 2530-059 KrakowPoland Institute of Physics Pedagogical Universityul.Podchorazych 230-084 KrakowPoland

Low-lead (1-x)BaTiO3–xPbMg1/3Nb2/3O3 ceramics (x = 0, 0.025, 0.05, 0.075, 0.1, and 0.15) were prepared by the conventional oxide mixed sintering process, and their optical band gap, Seebeck coefficient, ac ( σac ) and dc ( σdc ) conductivities as a function of temperature were investigated for the first time. It was found that all samples have p-type conductivity. The low-frequency (20 Hz–2 MHz) ac conductivity obeys a power law σac ~ ωs , which is characteristic for disordered materials. The frequency exponent s is a decreasing function of temperature and tends to zero at high temperature. σac is proportional to ω0.07 – ω0.31 in the low-frequency region and to ω0.51 – ω0.98 in the high-temperature region. The temperature dependence of the dc conductivity showed a change in slope around the temperature at which the phase transition appeared. Both ac and dc conductivities showed a thermally activated character and possessed linear parts with different activation energies and some irregular changes. It was found that the hopping charge carriers dominate at low temperature and small polarons and oxygen vacancies dominate at higher temperature. (1-x)BaTiO3–xPbMg1/3Nb2/3O3 ceramics are expected to be promising new candidate for low-lead electronic materials.

关键词： BT-PMN ceramics electric properties Seebeck coefficient

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向阳而动波兰QUADrANT住宅

室内设计与装修 2019年第9期 66-71页

作者： (波兰)robert konieczny 薇薇(编译) 不详

业主希望这是一栋设计简单、充满阳光、可以让人觉得无限放松的房子,对这个灵活性十足的设计方案非常满意。该住宅的用地是长方形的,坐落在城市的郊区。设计师将房子设计成一个长方体,高低错落的结构给人以视觉的美感。房屋对着道路的... 详细信息

业主希望这是一栋设计简单、充满阳光、可以让人觉得无限放松的房子,对这个灵活性十足的设计方案非常满意。该住宅的用地是长方形的,坐落在城市的郊区。设计师将房子设计成一个长方体,高低错落的结构给人以视觉的美感。房屋对着道路的那一面是封闭的,完全保留了住宅的私密性。房子的起居室和卧室向着花园开放,将室外的景色引入室内,增强了人与自然的互动,给人以动人的视觉享受。

关键词： QUADrANT 休闲空间

Assessment of Glycosaminoglycan Content of Lumbar Intervertebral Discs in Patients with radiculopathy

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International Journal of Clinical Medicine 2019年第4期10卷 259-269页

作者： Sophie Heüveldop Florian Fichter Anja Müller-Lutz Markus konieczny Markus Eichner Hans-Jö rg Wittsack Christoph Schleich Department of Diagnostic and Interventional radiology Medical Faculty University of Düsseldorf Düsseldorf Germany Department of Orthopedics Medical Faculty University of Düsseldorf Düsseldorf Germany

Objective: To assess glycosaminoglycan (GAG) content of lumbar intervertebral discs (IVDs) in patients with radiculopathy compared with healthy volunteers with glycosaminoglycan chemical exchange saturation transfer (gagCEST). Methods: The lumbar spines of 15 patients with radiculopathy (9 women, 6 men;mean age 45 years;range: 19 - 80 years) and 13 healthy controls (10 women, 3 men;mean age 29 years;range: 19 - 38 years) without lumbar back pain or previous spine surgery were examined at a 3 Tesla (T) magnetic resonance imaging (MrI) scanner in this prospective study. The MrI protocol included standard morphological, sagittal, and transverse T2-weighted (T2w) images of the five lumbar IVDs (L1-S1) to assess Pfirrmann score and to detect disc disorders according to the Combined Task Force classification. To analyze biochemically the lumbar IVDs, a gagCEST sequence was applied to measure the GAG content of the nucleus pulposus (NP) and annulus fibrosus (AF). results: Patients with radiculopathy indicated significantly lower gagCEST values in NP than healthy volunteers (2.82% ±3.12% vs. 4.09% ±2.25%, P = 0.017). The GAG content of AF showed no significant difference between volunteers and patients (2.66% ±2.01% vs. 1.92% ±2.56%;P = 0.175). Conclusions. Patients with radiculopathy presented with lower GAG values than healthy volunteers in NP, indicating an association between pain and IVD degeneration. gagCEST of lumbar IVDs is a powerful, non-invasive tool to investigate early disc degeneration, which we could demonstrate in the NP in our study collective.

关键词： Glycosaminoglycan Chemical Exchange Saturation Transfer radiculopathy Intervertebral Disc Lumbar Spine Early Degeneration

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金属材料的本构关系

锻压技术 1985年第2期 2-7页

作者： Z. Marciniak A.konieczny 徐秉业陈森灿清华大学清华大学

一、前言为了找出金属在塑性加工过程中的应力、应变分布规律和力能参数等,一般都采用塑性力学中的增量理论对这些工艺过程进行理论分析。在增量理论中,材料的变形塑性特性都通过能在任何变形条件下表示出材料变形规律的本构方程来加以... 详细信息

一、前言为了找出金属在塑性加工过程中的应力、应变分布规律和力能参数等,一般都采用塑性力学中的增量理论对这些工艺过程进行理论分析。在增量理论中,材料的变形塑性特性都通过能在任何变形条件下表示出材料变形规律的本构方程来加以考虑。在冷加工过程中经常使用的强化函数σp（ε）就是这种本构关系的一个例子。它能表示应力σp和应变强度ε之间的关系。为了考虑应变率效应ε以及温度T的影响,这一本构关系式经常采用三个自变量来表示,即

关键词：本构关系型式函数材料动态性质应变率应变速率连续变形变形过程屈服应力金属材料

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卡托维兹的绿野仙踪

现代装饰（家居） 2015年第8期 48-57页

作者： robert konieczny Jakub Certowicz Olo Studio 范嘉苑波兰robert konieczny-KWK Promes

本案是一座独栋住宅，位于波兰的卡托维兹，其建筑设计突破了传统的住宅结构，与自然融于一体，重新定义了居住建筑的形态。住宅整体可分为两部分，起居区域位于首层，而卧室区在二层。一层面向花园，整体采用了开放式的布局，二层布局... 详细信息

本案是一座独栋住宅，位于波兰的卡托维兹，其建筑设计突破了传统的住宅结构，与自然融于一体，重新定义了居住建筑的形态。住宅整体可分为两部分，起居区域位于首层，而卧室区在二层。一层面向花园，整体采用了开放式的布局，二层布局则更好地保证了住户的隐私。

关键词：住宅结构建筑设计居住建筑开放式二层卧室花园层面

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混合动力汽车零排放的研究

汽车与新动力 2020年第5期3卷 45-53页

作者： [瑞典]M.LAUrELL [瑞典]L.PACE [瑞典]F.EKSTrOM [瑞典]K.konieczny 武涛(译) 不详

目前,装配点燃式发动机的乘用车和轻型货车在热机状态下已经实现了对排气污染物的完全转化,但减少排放的目标仍面临挑战。这主要受到冷起动和暖机策略的影响。对排气后处理系统技术研究的重点是热管理,并希望发动机尽快达到热机状态。目... 详细信息

目前,装配点燃式发动机的乘用车和轻型货车在热机状态下已经实现了对排气污染物的完全转化,但减少排放的目标仍面临挑战。这主要受到冷起动和暖机策略的影响。对排气后处理系统技术研究的重点是热管理,并希望发动机尽快达到热机状态。目前,新的挑战是实际驾驶工况排放(rDE)法规,因为rDE法规包含更频繁的不同冷起动工况,这与以前法规要求的测试循环迥然不同。另一方面,如果排气能实现完全转化,对于许多排气后处理系统(EATS)部件来说是有益的。例如,如果可以降低排气温度,则有利于排气系统的耐久性。为了进一步大幅度降低排放,实现零排放概念,研究了电加热催化器(EHC)技术,同时也包括预热策略。排气后处理明确的目标是在合适的时间、位置获得合适的温度。对排气后处理系统结构、EHC加热策略等多种方案进行了研究,以实现显著的冷起动减排。混合动力电动汽车(HEV)的应用正快速地增长,这为支持新的减排策略提供了更多的可能性。该方案不仅能借助额外的电力驱动,还包括由电能支持的排气后处理系统设计。沃尔沃汽车和大陆Emitec公司已经对嵌入EHC型的排气后处理系统进行了设计和研究。当然,平衡排放与车辆的其他特性(如燃油耗)也很重要。

关键词：电加热催化器零排放排气后处理系统混合动力冷起动

The Use of ACT-r to Develop an Attention Model for Simple Driving Tasks

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Psychology research 2013年第4期3卷 189-198页

作者： Kerstin Sophie Haring Katsumi Watanabe Marco ragni Lars konieczny The University of Tokyo Tokyo Japan Akademischer rat Freiburg Germany The University of Freiburg Freiburg Germany

Driving a car is obviously a complex task and the construction of an ACT-r (adaptive control of thought-rational) model of human attention while performing this task is similarly complex along multiple dimensions and presents a challenge to architecture and modeler. This work is a first attempt to develop an integrated driver model of attention in the cognitive architecture ACT-r. The model is able to keep a traffic lane and identify traffic signs and crossroads in a sparse and simulated environment.

关键词：注意力模型驾驶开发驱动程序模型自适应控制认知结构模拟环境十字路口