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| 1 | Loss of FHIT expression in gastric mucosa of patients with family histories of gastric cancer and Helicobacter pylori infection显示文摘AIM: To answer the question whether FHIT gene expression is affected by the family history of gastric carcinoma and the presence of Helicobacter pylori (Hpylori) in the gastric mucosa of patients with dyspepsia.METHODS: FHIT gene expression in two different topographic sites of the gastric mucosa of twenty-one patients with dyspepsia and with or without familial gastric carcinoma, infected or not infected with H pylori, was evaluated by reverse transcription-PCR (RT-PCR) and IMAGE QUANT methods. A rapid urease test and histopathological examination were used to determine H pylori colonization.RESULTS: In the gastric mucosa of patients with family histories of gastric carcinoma, the amount of FHIT protein mRNA was reduced down to 32%, and for patients with H pylori colonization, to 24% in comparison to controls with dyspepsia and without cancer in the family. FHIT expression was independent of the topography of specimens (corpus vsantrum), and for the control patients it was less sensitive to infection with H pylori. A considerable statistical difference in FHIT levels was observed in the gastric mucosa from the corpus of patients with family histories of gastric carcinoma in respect to H pylori colonization (P = 0.06). Macroscopic evaluation of the gastric mucosa demonstrated that pathologic changes classified according to the Sydney system had no significant influence on FHIT expression within each tested group of patients.CONCLUSION: Loss of FHIT expression was observed in patients with dyspepsia and family histories of gastric carcinoma, especially those infected with H pylori. Such results may constitute an early indication of the development of gastric carcinoma, which is associated with family factors including heredity and H pylori infection. The loss of the FHIT gene may serve as a marker for early diagnosis and prevention of gastric carcinoma, especially in context of early monitoring of H pylori infection in individuals with a record of familial stomach cancer. | Krystyna Stec-Michalska Slawomir Antoszczyk Grazyna Klupinska Barbara Nawrot | 2005 | World Journal of Gastroenterology2005,11,1: | 17 |
| 2 | 活性污泥胞外聚合物提取方法优化显示文摘试验对比了不同离子交换树脂(CER)含量和pH条件下胞外聚合物(EPS)的提取效果差异。结果表明,EPS各组分提取浓度均随离子交换树脂用量增加而增加,但各组分趋势不同。TOC的最佳树脂剂量为100 g CER/g VSS,而蛋白质、多糖和DNA的最佳树脂剂量约为70 g CER/g VSS。pH值对TOC、DNA和多糖的提取浓度影响较小,但对蛋白质影响比较大。各提取条件下,EPS各组分提取浓度随时间的变化过程可以分为平稳增长期、快速增长期及稳定期。 | 段亮 夏四清 宋永会 刘雪瑜 Slawomir W.Hermanowicz | 2010 | 环境工程学报2010,4,1: | 10 |
| 3 | Enhanced struvite recovery from wastewater using a novel cone-inserted fluidized bed reactor显示文摘The feasibility of struvite recovery at low(12.5 mg/L) and high(120 mg/L) phosphorus concentrations was studied by constructing a novel fluidized bed reactor with cones(FBRwc) and without cones(FBRwoc). The crystallization process was continuously operated for 133 days under different hydraulic retention times(HRT = 1–10 hr), pH(7.5–10), and molar ratios of Mg/P(0.75–1.75), N/P(1–10) and Ca/Mg(0–2). The optimum operating conditions of HRT, pH, Mg/P and N/P molar ratios were found to be 2 hr, 9, 1.25, and 7.5, respectively. Under these optimum conditions, the phosphorus precipitation efficiencies of FBRwcwere 93% for low and 98% for high phosphorus influent; however, the efficiencies were 78% and 81% for FBRwoc, respectively. Due to crystal losses at each junction(17%–31%), the crystal recovery efficiency of FBRwocwas relatively low(47%–65%) for both influent concentrations. However, the losses were minimal in FBRwc, which showed 75% and 92% crystal recovery for low and high phosphorus concentrations, respectively. At low calcium concentration, crystal chemical analysis showed the product to be pure struvite(> 99%). The scanning electron microscope and X-ray diffraction results further confirmed that the crystal recovered from FBRwc contained pure struvite, which could be considered a high quality fertilizer. Except HRT, all parameters(pH, Mg/P, N/P and Ca/Mg) were found to be influencing factors for FBRwcperformance. Overall, inserting cones in each part of the reactor played a significant role in enhancing struvite recovery from a wide range of phosphorus-containing wastewater. | Awoke Guadie Siqing Xia Wei Jiang Lijie Zhou Zhiqiang Zhang Slawomir W.Hermanowicz Xiaoyin Xu Shuang Shen | 2014 | Journal of Environmental Sciences2014,26,4: | 6 |
| 4 | Influence of Biomass Co-combustion on Heating Surfaces Thermal Efficiency显示文摘Pulverized coal-fired(PCF) boilers were first and foremost intended to fire pulverized hard or brown coal. However, biomass co-firing has become a fairly common practice in the Polish power generation system and many existing boilers have been modernized to serve this purpose. This paper presents calculations of the coefficient of thermal efficiency of the boiler heating surfaces and of the time needed for complete reconstruction of deposits on the second-stage steam reheater(RHII) of an OP-380 boiler with the output of 380×10~3 kg/h. The boiler was equipped with a purpose-designed installation of direct feeding of biomass. The main co-fired fuels were wood and sunflower husk pellets. Intense formation of deposits on the steam reheater tubes and problems related to a reduction in the diameters of the tubes were identified during the power unit operation. | GRADZIEL Slawomir WITKOWSKI Karol | 2018 | Journal of Thermal Science2018,27,5: | 4 |
| 5 | 活性污泥胞外聚合物提取动力学模型显示文摘为研究活性污泥胞外聚合物(EPS)提取过程中各参数间的基本关系及优化EPS提取过程,建立了EPS提取过程中浓度随时间变化的动力学模型,并通过前人研究数据和本次试验数据对模型进行验证.结果表明,模型对一些经典文献中的数据拟合效果较好,拟合系数(R2)均大于0.94.对MLSS为(1064.47±298.70)mg/L,MLVSS为(822±147)mg/L的活性污泥进行EPS提取,TOC和蛋白质的拟合效果较好,但多糖和DNA的拟合效果不理想.该模型可以大致估算试验中EPS的最大提取量及任一时间的EPS产量. | 段亮 夏四清 宋永会 Slawomir W Hermanowicz | 2009 | 中国环境科学2009,29,9: | 3 |
| 6 | Distribution network reconfiguration using feasibility-preserving evolutionary optimization显示文摘Distribution network reconfiguration(DNR) can significantly reduce power losses, improve the voltage profile, and increase the power quality. DNR studies require implementation of power flow analysis and complex optimization procedures capable of handling large combinatorial problems. The size of distribution network influences the type of the optimization method to be applied. Straightforward approaches can be computationally expensive or even prohibitive whereas heuristic or meta-heuristic approaches can yield acceptable results with less computation cost. In this paper, a customized evolutionary algorithm has been introduced and applied to power distribution network reconfiguration. The recombination operators of the algorithm are designed to preserve feasibility of solutions(radial structure of the network) thus considerably reducing the size of the search space. Consequently, improved repeatability of results as well as lower overall computational complexity of the optimization process have been achieved. The optimization process considers power losses and the system voltage profile, both aggregated into a scalar cost function. Power flow analysis is performed with the Open Distribution System Simulator,a simple and efficient simulation tool for electric distribution systems. Our approach is demonstrated using several networks of various sizes. Comprehensive benchmarking indicates superiority of the proposed technique over state-of-the-art methods from the literature. | Alberto LANDEROS Slawomir KOZIEL Mohamed FABDEL-FATTAH | 2019 | Journal of Modern Power Systems and Clean Energy2019,7,3: | 2 |
| 7 | 参数选择对焙烧阳极质量的影响显示文摘1.前言焙烧炭块同二氧化碳的反应,一般被称为“脱落”(sloughing),它是决定阳极在铝电解槽中有用性的基本标准之一。实验室和工业实验已经揭示了电解产生的二氧化碳渗入到阳极中与部分粘结剂焦反应,导致阳极上骨料焦粒从阳极上脱落,在电解槽上部产生漂浮炭沫,这种炭沫经常被称作炭“渣”。 | Slawomir Witkowski Jan Kolowca Miroslaw Lebiedziejewski Jan Kulpinski 李毅然 | 1989 | 炭素技术1989,8,5: | 2 |
| 8 | Nitric oxide-releasing aspirin but not conventional aspirin improves healing of experimental colitis显示文摘AIM:To determine the effect of non-selective cyclooxygenase (COX) inhibitors,selective COX-2 inhibitors and nitric oxide (NO)-releasing aspirin in the healing of ulcerative colitis.METHODS:Rats with 2,4,6 trinitrobenzenesulfonic acid (TNBS)-induced colitis received intragastric (ig) treatment with vehicle,aspirin (ASA) (a nonselective COX inhibitor),celecoxib (a selective COX-2 inhibitor) or NO-releasing ASA for a period of ten days.The area of colonic lesions,colonic blood flow (CBF),myeloperoxidase (MPO) activity and expression of proinflammatory markers COX-2,inducible form of nitric oxide synthase (iNOS),IL-1β and tumor necrosis factor (TNF)-α were assessed.The effects of glyceryl trinitrate (GTN),a NO donor,and 2-(4-carboxyphenyl)-4,5-dihydro-4,4,5,5-tetramethyl-1H-imidazolyl-1-oxy-3-oxide,onopotassium salt (carboxy-PTIO),a NO scavenger,administered without and with ASA or NO-ASA,and the involvement of capsaicin-sensitive afferent nerves in the mechanism of healing the experimental colitis was also determined.RESULTS:Rats with colitis developed macroscopic and microscopic colonic lesions accompanied by a significant decrease in the CBF,a significant rise in colonic weight,MPO activity and plasma IL-1β and TNF-α levels.These effects were aggravated by ASA and 5-(4-chlorophenyl)-1-(4-methoxyphenyl)3-(trifluoromethyl)-1H-pyrazole (SC-560),but not celecoxib and counteracted by concurrent treatment with a synthetic prostaglandin E 2 (PGE 2) analog.Treatment with NO-ASA dose-dependently accelerated colonic healing followed by a rise in plasma NO x content and CBF,suppression of MPO and downregulation of COX-2,iNOS,IL-1β and TNF-α mRNAs.Treatment with GTN,the NO donor,significantly inhibited the ASA-induced colonic lesions and increased CBF,while carboxy-PTIO or capsaicin-denervation counteracted the NO-ASAinduced improvement of colonic healing and the accompanying increase in the CBF.These effects were restored by co-treatment with calcitonin gene related peptide (CGRP) and NO-ASA in capsaicin-denervated animals.CONCLUSION:NO-releasing ASA,in contrast to ASA,COX-1 inhibitors,and SC-560,accelerated the healing of colitis via a mechanism involving NO mediated improvement of microcirculation and activation of sensory nerves releasing CGRP. | Malgorzata Zwolinska-Wcislo Tomasz Brzozowski Agata Ptak-Belowska Aneta Targosz Katarzyna Urbanczyk Slawomir Kwiecien Zbigniew Sliwowski | 2011 | World Journal of Gastroenterology2011,17,36: | 2 |
| 9 | 天然恒牙列的动态咬合接触形式显示文摘目的:在既往研究中.从未停止过关于修复和正畸治疗中进行咬合重建时.应该建立何种形式的咬合接触的讨论。对天然恒牙列的动态咬合的流行病学调查将有助于走出这种持续讨论的困境。本研究的目的就是要通过调查研究.总结年青群体和老年群体天然牙列的特征性动态咬合接触形式,并且分析动态咬合接触形式与性别和年龄之间的相关性。材料和方法:本研究共调查了834人。所有的调查对象都具有天然牙列.并且没有修复体存在。调查对象的年龄范围是20--63岁。在调查对象进行牙诱导的侧方和前伸运动过程中,检查天然牙的动态咬合接触形式。结果:结果发现存在以下的动态咬合接触形式:双侧和单侧的尖牙保护[牙合],组牙功能[牙合].平衡[牙合]以及“其他[牙合]型”。男性和女性之间不同类型的动态咬合接触形式的出现概率相同。但是.一些咬合接触形式的出现率与年龄有相关性。随着年龄的增加.双侧和单侧尖牙保护耠的出现率出现下降趋势,而组牙功能[牙合]的出现率上升。平衡[牙合]以及“其他[牙合]型”的出现率很低.并且没有呈现与年龄相关的变化趋势。结论:双侧尖牙保护[牙合]和组牙功能[牙合]是年青患者的特征性咬合接触形式.而老年患者中组牙功能[牙合]的接触形式更加普遍。当年青患者接受修复和正畸手段的咬合重建时.尖牙保护[牙合]是一种最适合的咬合接触形式,而对于老年患者来说.组牙功能[牙合]则更加适合。需要进一步的研究来探讨[牙合]型和牙周炎、磨牙症或者颞下颌关节紊乱病之间的关系。 | Halina Panek Teresa Matthews-Brzozowska Danuta Nowakowska Beata Panek Grzegorz Bielicki Slawomir Makacewicz Malgorzata Mank iewicz 李健(译) 姜婷(审) | 2009 | 中国口腔医学继续教育杂志2009,12,6: | 2 |
| 10 | 高密度微阵列基因芯片技术在微生物分子生态学研究中的运用显示文摘应用基于16S rDNA的高密度微阵列基因芯片(Microarray)技术对膜生物反应器内的微生物多样性进行研究.结果表明,膜生物反应器具有较高的微生物多样性,Microarray共检测到1 019种微生物.Proteobacteria是其中的优势种,共含有657种微生物,占总种群数量的64.5%左右.gamma Proteobacteria是Proteobacteria中的优势种,占35.8%左右,但相对含量一般并不高.betaProteobacteria虽然种群数量稍少,但其在荧光强度最高的前25种和50种微生物中比重最大,分别占40%和36%左右.通过比较微生物的相对荧光强度,发现Clostridia是系统中的优势微生物种属.一些常见的硝化细菌如Nitrosomonadaceae、Nitrospiraceae等也具有较高的含量.Microarray作为一种实时、高效、准确的分子生物学手段,可应用于废水处理中的微生物多样性研究. | 段亮 夏四清 宋永会 Yvette M. Piceno Slawomir W. Hermanowicz | 2009 | 环境科学2009,30,12: | 2 |
| 11 | Surface Texture Analysis after Hydrostatic Burnishing on X38CrMoV5-1 Steel显示文摘Ball burnishing is a plastic deformation process used as a surface smoothing and surface improvement finishing treatment after turning or milling processes. This process changes the surface stereometrics of the previously machining surface. Burnishing with hydrostatic tools can be easily and effectively used on both conventional and Computer Numeric Control(CNC) machines. The existing research of the burnishing process mainly focuses on the functional surface characterization, for example, surface roughness, wear resistance, surface layer hardness, etc. There is a lack of references reporting a detailed analysis of 3D parameters calculation with a mathematical model to evaluate the results of the ball burnishing. This paper presents the effect of ball burnishing process parameters with hydrostatic tools on the resulting surface structure geometry. The surface topography parameters were calculated using the Taly Map software. Studies were conducted based on Hartley’s static, determined plan. Such a plan can be built on a hypersphere or hypercube. In this work, a hypercube was used. In the case of Hartley’s plan makes it possible to define the regression equation in the form of a polynomial of the second degree. The input process parameters considered in this study include the burnishing rate, applied pressure, and line-to-line pitch. The significant influence of these parameters was confirmed and described as a mathematical power model. The results also showed a positive effect of hydrostatic burnishing on the roughness and geometric structure of the surface. | Slawomir Swirad | 2019 | Chinese Journal of Mechanical Engineering2019,32,6: | 2 |
| 12 | Photoluminescence and electrochemiluminescence studies of chosen rare earths systems显示文摘Eu(III) complexes with chosen Keggin polyoxomatalates, POM, containing organic counter cations (tetrabutylammonium, tetrabutylphosphonium, triphenylethylphosphonium), were synthesized, and their photophysical properties were studied. The synthesized complexes had the general formula of XnH5-n[EuSiW11O39], formulated based on the results of elemental and thermogravimetric analysis and FTIR spectroscopy. The photophysical properties of the obtained compounds were investigated using photoluminescence and electro- chemiluminescence, ECL, methods in solutions and solids. The most intense luminescence of Eu(III) was observed for the complexes with tetrabutylammonium cations. After the addition of phenanthroline to the XnH5-n[EuSiW11O39] solutions, a large increase in the Eu(III) lumi- nescence intensity and a lengthening of its luminescence lifetime were observed as a result of the formation of ternary complexes. Attempts to apply ECL as a method of light emission by generating species capable of forming excited states in Ln/POMs, i.e., Tb(III) and Eu(III) in the Na9EuW10O36 and Na9TbW10O36 complexes, were made. The influence of the POM complexes on the ECL was also tested using the Tb/EDDHA (EDDA=ethylenediamine di(o-hydroxyphenylacetic acid)) complex, which is effective in generating ECL. | Stefan Lis Slawomir But Krzysztof Staninski Monika Jesiolowska | 2008 | Journal of Rare Earths2008,26,2: | 2 |
| 13 | Numerical Analysis of Shock Induced Separation Delay by Air Humidity显示文摘In this paper numerical calculations of the dry and humid air flows in the nozzle are presented. The dry air flow (adiabatic flow) and the humid air flow (flow with homogeneous condensation, diabatic flow) are modeled with the use of Reynolds Averaged Navier-Stokes (RANS) equations. The comparison of these two types of flow is carried out. The influence of the air humidity on the shock wave location and its interaction with the boundary layer is examined. Obtained numerical results present a first numerical approach of the condensation and evaporation process in transonic flow of humid air. The phenomena considered here are very complex and complicated and need further in-depth numerical analysis. | Piotr DOERFFER Slawomir DYKAS | 2005 | Journal of Thermal Science2005,14,2: | 2 |
| 14 | 利用低代码技术进行软件研发显示文摘Raben集团是一家荷兰家族企业,拥有近90年的经验。它是欧洲最成功的物流公司之一,拥有10000多名员工,营业额超过10亿欧元。该公司主要使用Mendix低代码平台内部开发软件。 | Slawomir Pawalak | 2020 | 现代制造2020,,23: | 2 |
| 15 | Brittle fracture in plane elements with sharp notches under mixed-mode loading显示文摘 | ANDRZEJ S SLAWOMIR P ZENON M | 1997 | Journal of Engineering Mechanics1997,123,6: | 1 |
| 16 | Evolutionary algorithms,homomorphous mappings,and constrained parameter optimization显示文摘 | Slawomir K Zbigniew M | 1999 | Evolutionary Computation1999,7,1: | 1 |
| 17 | True - color Images and Iterated Function Systems 显示文摘 | SLAWOMIR S | 1998 | Computer&Graphics1998,22,5: | 1 |
| 18 | True-colour Images and Iterated Function Systems 显示文摘 | Slawomir S Nikiel | 1998 | Computer & Graphics (S0097-8493)1998,22,5: | 1 |
| 19 | Evolutionary algorthms,homomorphous mappings,and constrained parameter optimization显示文摘 | Slawomir Koziel Zbigniew Michalewicz | 1999 | Evolutionary Computation1999,7,1: | 1 |
| 20 | Modeling the optical properties of mineral particles suspend in seawater and their influence on ocean reflectance and chlorophyll estimation from remote sensing algorithms显示文摘 | Wozniak | 2004 | Applied Optics2004,43,17: | 1 |