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| 1 | Characterization of focal liver lesions with SonoVue~-enhanced sonography: International multicenter-study in comparison to CT and MRI显示文摘AIM: To evaluate in a multicenter study whether the sonographic characterization of focal liver lesions can be improved using SonoVueüà-enhancement; and to compare this method with computed tomography (CT) and magnetic resonance imaging (MRI). METHODS: One hundred and thirty four patients with one focal liver lesion detected in baseline ultrasound (US) were examined with conventional US, contrastenhanced US (n = 134), contrast-enhanced CT (n = 115) and/or dynamic contrast-enhanced MRI (n = 70). The lesions were classified as malignant, benign or indeterminate and the type of lesion was determined. The f inal diagnosis based on the combined information of all imaging examinations, clinical information and histology (n = 32) was used. Comparisons were made to see whether the addition of contrast-enhanced US led to the improvement of the characterization of doubtful focal liver lesions. RESULTS: In comparison with unenhanced US, SonoVue markedly improves sensitivity and specificity for the characterization (malignant/benign) of focal liver lesions. In comparison with CT and/or dynamic MRI, SonoVueüà -enhanced sonography applied for characterization of focal liver lesions was 30.2% more sensitive in the recognition of malignancy and 16.1% more specific in the exclusion of malignancy and overall 22.9% more accurate. In the subgroup with confirmative histology available (n = 30), sensitivity was 95.5% (CEUS), 72.2% (CT) and 81.8% (MRI), and specif icity was 75.0% (CEUS), 37.5% (CT) and 42.9% (MRI). The sensitivity and specif icity of CEUS for the identif ication of focal nodular hyperplasia (FNH) and hemangiomas was 100% and 87%, resulting in an accuracy of 94.5%. CONCLUSION: SonoVueüà-enhanced sonography emerges as the most sensitive, most specif ic and thus most accurate imaging modality for the characterization of focal liver lesions. | Hervé Trillaud Jean-Michel Bruel Pierre-Jean Valette Valérie Vilgrain Gérard Schmutz Raymond Oyen Wieslaw Jakubowski Jan Danes Vlastimil Valek Christian Greis | 2009 | World Journal of Gastroenterology2009，15，30： | 34 |
| 2 | 利用加速度响应连续小波变换的时变系统物理参数识别显示文摘基于小波理论,推导了函数积分运算的连续小波变换计算方法,应用此方法仅用线性时变结构的振动加速度响应信号,就可计算出速度和位移响应信号的连续小波变换值,并将振动微分方程组转换成用小波表示的线性方程组,求解不同时刻的线性代数方程组识别出时变结构的物理参数(质量、刚度和阻尼)。以5自由度时变结构为仿真算例,利用添加噪声的采集信号,识别了突变、线性变化和周期变化3种不同类型的时变物理参数,算例验证了识别方法的正确性、有效性和抗噪声能力。最后还研究了多尺度分析对参数识别的影响,给出了尺度参数区间选取和离散的依据。 | 许鑫 史治宇 Wieslaw J Staszewski 龙双丽 | 2013 | 振动工程学报2013，26，1： | 7 |
| 3 | Laser-induced white-light emission from graphene ceramics–opening a band gap in graphene显示文摘Recent theoretical and experimental studies have indicated the existence of a new stable phase of carbon with mixed sp^(2) and sp^(3) hybridized bonds—diaphite.Such a two-layered structure with sp^(2)/sp^(3) bonds may be observed after the photostimulation of highly oriented pyrolytic graphene with femtosecond laser pulses.This hidden multistability of graphene may be used to create a semiconducting phase immersed in the semimetallic continuum,resulting in bandgap opening.We demonstrate that bandgap opening and light emission from graphene is possible using continuous-wave laser beams with wavelengths from the visible(405 nm)to the near-infrared range(975 nm).We demonstrate that without the application of cooling,the effective temperature of the emitting sample remains lower than 900 K,which is far below the value predicted by the theory of black-body radiation.Moreover,light emission from a graphene sample may be observed at temperatures as low as 10 K. | Wieslaw Strek Bartlomiej Cichy Lukasz Radosinski Pawel Gluchowski Lukasz Marciniak Mikolaj Lukaszewicz Dariusz Hreniak | 2015 | Light(Science & Applications)2015，4，1： | 6 |
| 4 | Selection of the Relevant Turbulence Model in a CFD Simulation of a Flow Disturbed by Hydraulic Elbow--Comparative Analysis of the Simulation with Measurements Results Obtained by the Ultrasonic Flowmeter显示文摘The article is an attempt to compile the results of CFD liquid flow simulation through pipeline section containing hydraulic elbow with the results of ultrasonic flow measurements. To carry out the measurements behind the flow disturbing element(hydraulic elbow), an ultrasonic flowmeter with applied head set in accordance with the Z-type system was used. For comparative purposes, a flow simulation for 3 different turbulence models(k-epsilon, SST and SSG) was performed. It was found that with a proper ultrasonic flowmeter heads configurations, it is possible to measure the flow rate disturbed by the hydraulic elbow at any distance from the source of the disturbance. It has to use appropriate correction factor that can be determined by knowing the flow velocity profile equation. Based on comparison of CFD simulation results with experimental data, the accuracy/purposefulness of using individual turbulence models in the case of discussed hydraulic installation was evaluated. | PIECHOTA Piotr SYNOWIEC Piotr ANDRUSZKIEWICZ Artur WEDRYCHOWICZ Wieslaw | 2018 | Journal of Thermal Science2018，27，5： | 6 |
| 5 | 模糊BIK^+-逻辑与非可换模糊逻辑(英文)显示文摘为了建立各种可换和非可换模糊逻辑的公共基础(蕴涵片段),提出了一个新的蕴涵逻辑,称为模糊BIK+-逻辑。证明了这一新的蕴涵逻辑的可靠性和弱完备性定理,同时讨论了模糊BIK+-逻辑与各种模糊逻辑之间的关系,以及与它们配套的代数结构之间的关系。 | 张小红 Wieslaw A. Dudek | 2009 | 模糊系统与数学2009，23，4： | 5 |
| 6 | 基于加速度响应连续小波变换的线性时变结构瞬时频率识别显示文摘推导了函数积分运算的连续小波变换计算方法。借助此法,假设线性时变结构的质量系数为时不变常数,或者其随时间变化的规律已被经验掌握,仅利用线性时变结构自由振动的加速度响应信号,就可以计算出速度响应和位移响应信号的连续小波变换值。将一小段时刻点的线性代数方程组构造成最小二乘问题,求解最小二乘解识别出结构的时变阻尼和时变刚度,从而确定时变结构的瞬时频率。通过对5层剪切梁楼房模型和3自由度密集模态时变结构瞬时频率的识别,验证了识别方法的正确性、有效性和抗噪声能力。 | 许鑫 史治宇 Wieslaw J.Staszewski 龙双丽 | 2012 | 振动与冲击2012，31，20： | 5 |
| 7 | Long-Term Treatment With Entecavir Induces Reversal of Advanced Fibrosis or Cirrhosis in Patients With Chronic Hepatitis B显示文摘 | Eugene R. Schiff Samuel S. Lee You–Chen Chao Seung Kew Yoon Fernando Bessone Shun–Sheng Wu Wieslaw Kryczka Yoav Lurie Adrian Gadano George Kitis Suzanne Beebe Dong Xu Hong Tang Uchenna Iloeje | 2011 | Clinical Gastroenterology and Hepatology2011，，3： | 3 |
| 8 | 椰子油和大豆油的乙氧基化物对小鼠肝脏的脂质过氧化效应研究显示文摘为探讨椰子油乙氧基化物-36EO(COE-36)和大豆油乙氧基化物-42EO(SOE-42)对小鼠肝脏的脂质过氧化作用,采用腹腔注射技术,测定COE-36处理组、SOE-42处理组、氯化镉阳性对照组(小鼠单位体质量的氯化镉用量为2.5μg.g-1)和生理盐水阴性对照组小鼠肝脏超氧化物歧化酶(SOD)、过氧化氢酶(CAT)活性和丙二醛(MDA)生成量。结果表明,氯化镉显著抑制了小鼠肝脏SOD和CAT活性,增加了MDA生成量;在所测3个指标中,COE-36和SOE-42的3个用量组(以小鼠单位体质量的用药量计)与生理盐水阴性对照组相比均无显著性差异;与氯化镉阳性对照组相比,不同用量COE-36作用下SOD和CAT活性变化、不同用量SOE-42作用下CAT活性变化以及低用量(3 mg.g-1)COE-36或SOE-42作用下MDA生成量变化均有显著性差异,说明在所试用量(3~5 mg.g-1)下,这2种表面活性剂不会引起小鼠肝细胞的脂质过氧化。 | 罗毅 李瑞金 孙永强 IRECZUCH Wieslaw | 2012 | 日用化学工业2012，42，2： | 3 |
| 9 | Laser induced broadband white emission of Y2Si2O7 nanocrystals显示文摘The generation of broadband white emission of theα-Y2Si2O7 nanocrystals was observed upon excitation by focused beam ofCW lasers operating in near infrared,visible and blue regions.The influence of excitation energy on order of process is presented.The temperature of sample emitting laser induced white emission(LIWE)was determined by luminescence nanothermometry technique.It is found that the temperature is much lower than that predicted by blackbody model characterized with the same energy.It is shown that the LIWE is accompanied by efficient photocurrent.An origin of white emission is discussed in terms of multiphoton ionization process leading to the inter valence charge transfer emission. | Robert Tomala Dariusz Hreniak Wieslaw Strek | 2019 | Journal of Rare Earths2019，37，11： | 2 |
| 10 | Synthesis and characterization of core/shell structured nanophosphors CePO_4:Tb@LaPO_4 by solvothermal method显示文摘Core/shell structured CePO4:Tb(III) @LaPO4 and CePO4:Tb(III) were successfully synthesized in tris(2-ethylhexyl) phosphate(TEHP) and diethylene glycol(DEG) solvents for comparison of the two techniques in open air and closed reaction vessel.Morphology and crystal structure of the core/shell nanophosphors were determined by using X-ray diffraction(XRD) and transmission electron microscopy(TEM) ,which showed that nanophosphors had diameter of about 5-10 nm with the monoclinic monazite phase.The nanophosphors obtained by close vessel procedure showed smaller size,more homogeneity and pure crystallite.The luminescent measurements were done upon the different excitation wavelengths in ultraviolet region and at room temperature to elucidate the influences of the used solvents and the reaction temperatures.It was found that CePO4:Tb@LaPO4 prepared by the close vessel synthesis showed the intensity of green band of the transfer from 5D4 to 7F5 energy level,which was strongly increased,and the luminescent decay time was 3.2 ms,which was longer than that of naked CePO4:Tb phosphor. | Dinh Xuan Loc Tran Thi Kim Chi Tran Thu Huong Nguyen Vu Tran Kim Anh Wieslaw Strek Le Quoc Minh | 2011 | Journal of Rare Earths2011，29，12： | 2 |
| 11 | Ischemic preconditioning inhibits development of edematous cerulein-induced pancreatitis: Involvement of cyclooxygenases and heat shock protein 70显示文摘AIM: To determine whether ischemic preconditioning (IP)affects the development of edematous cerulein-induced pancreatitis and to assess the role of cyclooxygenase-1 (COX-1), COX-2, and heat shock protein 70 (HSP 70) in this process.METHODS: In male Wistar rats, IP was performed by damping of celiac artery (twice for 5 min at 5-min intervals).Thirty minutes after IP or sham operation, acute pancreatitis was induced by cerulein. Activity of COX-1 or COX-2 was inhibited by resveratrol or rofecoxib, respectively (10 mg/kg).RESULTS: IP significantly reduced pancreatic damage in cerulein-induced pancreatitis as demonstrated by the improvement of pancreas histology, reduction in serum lipase and poly-C ribonuclease activity, and serum concentration of pro-inflammatory interleukin (IL)-1β.Also, IP attenuated the pancreatitis-evoked fall in pancreatic blood flow and pancreatic DNA synthesis.Serum level of anti-inflammatory IL-10 was not affected by IP. Cerulein-induced pancreatitis and IP increased the content of HSP 70 in the pancreas. Maximal increase in HSP 70 was observed when IP was combined with cerulein-induced pancreatitis. Inhibition of COXs, especially COX-2, reduced the protective effect of IP in edematous pancreatitis.CONCLUSION: Our results indicate that IP reduces pancreatic damage in cerulein-induced pancreatitis and this effect, at least in part, depends on the activity of COXs and pancreatic production of HSP 70. | Zygmunt Warzecha Artur Dembinski Piotr Ceranowicz Stanislaw J Konturek Marcin Dembinski Wieslaw W Pawlik Romana Tomaszewska Jerzy Stachura Beata Kusnierz-Cabala Jerzy W Naskalski Peter C Konturek | 2005 | World Journal of Gastroenterology2005，11，38： | 2 |
| 12 | Isolation and characterization of carboxypeptidase Ⅲ from germinating triticale grains显示文摘 | Adam Drzymala Wieslaw Bielawski | 2009 | Acta Biochimica et Biophysica Sinica2009，41，1： | 2 |
| 13 | Upconversion luminescence of Gd2O3:Er3+and Gd2O3:Er3+/silica nanophosphors fabricated by EDTA combustion method显示文摘Gd2O3:Er^3+nanophosphors were fabricated by the combustion method in presence of Na2 ethylene diamine tetra acetic acid(EDTA-Na2)as fuel at not high temperature(≤350℃)within a very short time of 5 min.The added concentration of Er^3+ions in Gd2O3 matrix was changed from 0.5 mol%to 5.0 mol%.The X-ray diffraction pattern of samples indicates the monoclinic structure of Gd2O3:Er^3+.The morphology and chemical composition analysis of the Gd2O3:Er^3+samples are characterized by a field emission scanning electron microscope(FESEM)and a Fourier-transform infrared spectrometer(FTIR).The photoluminescence(PL),photo luminescence excitation(PLE)and upconversion(UC)at room temperature of the prepared materials with different concentrations of Er^3+were investigated.The PL of Gd2O3:Er^3+nanomaterials are shown in visible at 545,594,623,648,688 nm under excitation at 275 nm.The emission bands from transitions of Er^3+from 2P3/2 to 4F9/2 are observed,UC luminescent spectra of the Gd2O3:Er^3+/silica nanocomposites under 976 nm excitation show the bands at 548 and 670 nm.The influence of excitation power at 980 nm for transitions were measured and calculated.The results indicate that the upconversion process of Gd2O3:Er^3+/silica is two photons absorption mechanism.The low temperature dependence of UC luminescent intensities of the main bands of Gd2O3:Er^3+was investigated towards development of a nanotemperature sensor in the range of 10-300 K. | Le Quoc Minh Tran Kim Anh Nguyen Duy Hung Pham Thi Minh Chau Nguyen Thi Quy Hai Ho Van Tuyen Vu Thi Thai Ha Vu Duc Tu Wieslaw Strek | 2019 | Journal of Rare Earths2019，37，11： | 2 |
| 14 | Damage identification for beams in noisy conditions based on Teager energy operator-wavelet transform modal curvature显示文摘 | Maosen Cao Wei Xu Wieslaw Ostachowicz Zhongqing Su | 2013 | Journal of Sound and Vibration2013，，： | 2 |
| 15 | Phenolic compounds and their changes in apples during maturation and cold storage 显示文摘 | Stanislaw B Wieslaw O Chang Y L | 1990 | J Agric Food Chem1990，38，4： | 1 |
| 16 | Mathematical Modeling of Rate-independent Pseudoelastic SMA Material显示文摘 | Wieslaw G Andrzej W Artur Z | | 0，，： | 1 |
| 17 | Crystallization of gahnite in CMAS glass forming system - mechanism and process kinetics 显示文摘 | DANIELA H TOMASZ O WIESLAW W | 2010 | Adv Sci Tech2010，68，： | 1 |
| 18 | Raman spectra of molecules adsorbed on Ag centers in sol-gel matrices 显示文摘 | MAREK J DARIUSZ H WIESLAW S | 2003 | Journal of Sol- Gel Sci Tech2003，26，： | 1 |
| 19 | Antioxident and antiradical activities of flavonoids显示文摘 | STANISLAW Burda WIESLAW Oleszek | | 0，，06： | 1 |
| 20 | Preemptive open shop scheduling with multiprocessors: polynomial cases and applications显示文摘 | Dominique Werra Tamás Kis Wieslaw Kubiak | 2008 | Journal of Scheduling2008，，1： | 1 |
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