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| 1 | 不同改性Hummers法合成氧化石墨(英文)显示文摘通过不同的Hummers法和重铬酸钠氧化法,以商业石墨为原料,合成出不同氧含量和官能团的氧化石墨。采用元素分析、FTIR、XPS、SEM和XRD对氧化石墨进行化学和结构表征。重铬酸钾氧化能得到一种氧含量低的氧化石墨,主要形成羟基和环氧基。Hummers法是更有效的一种氧化方法。使用Na NO3氧化2 h,得到的氧化石墨具有最高的氧含量(>40 wt%),形成C—O和C=O键。SEM和XRD结果表明,在这些条件中,Hummers法合成的氧化石墨的石墨层间距最大。因此,用相同的氧化方法,通过改变反应条件能调控氧化石墨的化学结构。 | Roksana Muzyka Monika Kwoka Lukasz Smedowski Noel Díez Grazyna Gryglewicz | 2017 | 新型炭材料2017，32，1： | 16 |
| 2 | Improved glucose metabolism following bariatric surgery is associated with increased circulating bile acid concentrations and remodeling of the gut microbiome显示文摘Clinical studies have indicated that circulating bile acid(BA) concentrations increase following bariatric surgery, especially following malabsorptive procedures such as Roux-en-Y gastric bypasses(RYGB). Moreover, total circulating BA concentrations in patients following RYGB are positively correlated with serum glucagonlike peptide-1 concentrations and inversely correlated with postprandial glucose concentrations. Overall, these data suggest that the increased circulating BA concentrations following bariatric surgery- independently of calorie restriction and body-weight loss- could contribute, at least in part, to improvements in insulin sensitivity, incretin hormone secretion, and postprandial glycemia, leading to the remission of type-2 diabetes(T2DM). In humans, the primary and secondary BA pool size is dependent on the rate of biosynthesis and the enterohepatic circulation of BAs, as well as on the gut microbiota, which play a crucial role in BA biotransformation. Moreover, BAs and gut microbiota are closely integrated and affect each other. Thus, the alterations in bile flow that result from anatomical changes caused by bariatric surgery and changes in gutmicrobiome may influence circulating BA concentrations and could subsequently contribute to T2 DM remission following RYGB. Research data coming largely from animal and cell culture models suggest that BAs can contribute, via nuclear farnezoid X receptor(FXR) and membrane G-protein-receptor(TGR-5), to beneficial effects on glucose metabolism. It is therefore likely that FXR, TGR-5, and BAs play a similar role in glucose metabolism following bariatric surgery in humans. The objective of this review is to discuss in detail the results of published studies that show how bariatric surgery affects glucose metabolism and subsequently T2 DM remission. | Lukasz Kaska Tomasz Sledzinski Agnieszka Chomiczewska Agnieszka Dettlaff-Pokora Julian Swierczynski | 2016 | World Journal of Gastroenterology2016，22，39： | 11 |
| 3 | Effect of NCPB and VSPL on pain and quality of life in chronic pancreatitis patients显示文摘AIM: To compare the effects of neurolytic celiac plexus block (NCPB) and videothoracoscopic splanchnicectomy (VSPL) on pain and quality of life of chronic pancreatitis (CP) patients.METHODS: Forty-eight small duct CP patients were treated invasively with NCPB (n = 30) or VSPL (n = 18) in two non-randomized, prospective, case-controlled protocols due to chronic pain syndrome, and compared to a control group who were treated conservatively (n = 32). Visual analog scales were used to assess pain and opioid consumption rate was evaluated. In addition, the quality of life was measured using QLQ C-30 for NCPB and FACIT for VSPL.Although both questionnaires covered similar problems,they could not be compared directly one with another.Therefore, the studies were compared by meta-analysis methodology.RESULTS: Both procedures resulted in a significant positive effect on pain of CP patients. Opioids were withdrawn totally in 47.0% of NCPB and 36.4% of VSPL patients,and reduced in 53.0% and 45.4% of the respective patient groups. No reduction in opioid usage was observed in the control group. In addition, fatigue and emotional well-being showed improvements. Finally, NCPB demonstrated stronger positive effects on social support, which might possibly be attributed to earlier presentation of patients treated with NCPB.CONCLUSION: Both invasive pain treatment methods are effective in CP patients with chronic pain. | Andrzej Basinski Tomasz Stefaniak Ad Vingerhoets Wojciech Makarewicz Lukasz Kaska Aleksander Stanek Andrzej J.Lachinski Zbigniew Sledzinski | 2005 | World Journal of Gastroenterology2005，11，32： | 10 |
| 4 | Gastric ghrelin in relation to gender,stomach topography and Helicobacter pylori in dyspeptic patients显示文摘AIM:To investigate the level of gastric ghrelin in stomach mucosa of dyspeptic patients in relation to Helicobacter pylori(H pylori)infection,bacterial cytotoxicity,topography and gender. METHODS:The study comprised 40 premenopausal women(19 H pylori positive)and 48 men(17 H pylori positive)with functional dyspepsia.All gastric biopsy specimens revealed normal mucosa or non-atrophic gastritis.Gastric ghrelin concentration was determined by Enzyme linked immunosorbent assay.The cagA and vacA strains of bacterial DNA were identified by multiplex polymerase chain reaction. RESULTS:In general,infection with H pylori causedan increase in gastric ghrelin level regardless of gender and stomach topography.Significantly more hormone was present in both,noninfected and H pylori positive female samples,as compared to males.The distribution of bacterial strains showed cagA(+)vacA s1m1 and cagA(-)vacA s2m2 genotypes as the most common infections in the studied population.A tendency to higher ghrelin levels was observed in less cytotoxic (cagA negative)strain-containing specimens from the antrum and corpus of both gender groups(without statistical significance). CONCLUSION:An increase in gastric ghrelin levels at the stage of non-atrophic gastritis in H pylori positive patients,especially in those infected with cagA(-) strains,can exert a gastroprotective effect. | Krystyna Stec-Michalska Sebastian Malicki Blazej Michalski Lukasz Peczek Maria Wisniewska-Jarosinska Barbara Nawrot | 2009 | World Journal of Gastroenterology2009，15，43： | 10 |
| 5 | 基于局部主频率的子结构损伤识别研究与试验显示文摘针对大型复杂结构的整体监测常常面临测量信息不足等困难,提出只利用局部动态响应进行子结构损伤识别的局部主频率方法。子结构的局部主频率指:如果整体模态中含有以局部子结构位移为主的模态,即等价于在局部激励作用下,整体结构的振动主要体现为子结构的振动,并且主要以这阶局部模态振动为主,那么对应的该阶频率即定义为子结构的局部主频率。局部主频率主要反映子结构的局部特性,对子结构损伤的灵敏度高,所以只利用局部主频率就可以识别子结构。当子结构特征不明显时,提出通过附加质量使子结构具有局部主频率的有效方法。该文进行了大型空间桁架的局部动力测试试验,试验中通过附加质量使杆件子结构具有局部主频率,并能准确地识别出杆件损伤的位置和程度。 | 侯吉林 欧进萍 Lukasz JANKOWSKI | 2012 | 工程力学2012，29，9： | 9 |
| 6 | 基于形函数方法快速识别结构动态荷载的试验验证显示文摘在动态荷载识别中常常由于矩阵的病态性影响识别的精度,利用有限元理论中的形函数逼近荷载曲线,将识别离散的荷载历程转化为计算有限的形函数权重,从而显著改善反卷积法识别荷载中存在的采样时间长或采样频率高时数值求解困难的问题;并能改善反问题的病态性,提高对噪声的鲁棒性。一个连续梁的数值算例比较验证了该方法在5%的高斯噪声影响下能精确地识别未知荷载。悬臂梁试验中,通过实测的结构动态响应,在移动时间窗内利用荷载形函数方法可以实现激励的在线识别。 | 张青霞 段忠东 Lukasz Jankowski 王丰 | 2011 | 振动与冲击2011，30，9： | 8 |
| 7 | Arabidopsis Protein Phosphatase 2C ABI1 Interacts with Type I ACC Synthases and Is Involved in the Regulation of Ozone-Induced Ethylene Biosynthesis显示文摘它的生合成严格地是的在各种各样的生物过程并且因此的一个关键角色由 multiplemechanisms 调整了的乙烯戏。Posttranslational 规定,在控制乙烯生合成枢轴,经由特定的因素的复杂相互影响影响 1-aminocyclopropane1-carboxylate synthase (交流) 蛋白质稳定性。这里,我们证明 Arabidopsis thaliana 蛋白质磷酸酶打 2C, ABI1, abscisic 酸发信号的一个否定管理者,在氧化压力条件下面涉及 ethylenebiosynthesis 的规定。我们发现 ABI1 与 ACS6 和 dephosphorylates 交往它的 C-terminalfragment,压力应答的激活 mitogen 的蛋白质 kinase 的一个目标, MPK6。另外, ABI1 控制 MPK6 也 activitydirectly 并且由这个工具影响 ACS6 phosphorylation 水平。一致地与这,在 ABI1 猛烈紧张(abi1td ) 显著地更高的导致臭氧的乙烯 productionwas 比在野类型的植物。重要地,在 abi1td 异种的导致压力的乙烯生产的增加由一个更高的 ascorbate 氧化还原作用状态被补偿并且提高了抗氧化剂活动。总的来说, thisstudy 的结果提供 ABI1 由影响 ACS6 的活动限制乙烯合成的证据。ABI1 贡献 tostress 显型支撑它在在 abscisic 酸(骆驼毛的织物) 和表明 pathways.Key 词的乙烯之间的相互影响的角色: | Agnieszka Ludwikow Agata Ciesla Anna Kasprowicz-Malusk Filip Mitula Malgorzata Tajdel lukasz Gaigarnski Piotr A. Ziolkowski Piotr Kubiak Arleta Malecka Aneta Piechalak Marta Szabat Alicja Gorska Maciej Dabrowskia Izabela Ibragimow Jan Sadowski | 2014 | Molecular Plant2014，7，6： | 6 |
| 8 | 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 |
| 9 | CH_4/Air反扩散射流火焰多组分同步PLIF诊断显示文摘多组分同步平面激光诱导荧光技术在研究火焰结构和燃烧反应中间产物二维分布等方面有着重要作用。为了研究CH4-Air反扩散射流火焰,搭建了OH/CH2O/丙酮(Acetone)多组分同步平面激光诱导荧光实验系统。系统由2套激光器、2部ICCD相机、1组时序控制器以及光学系统构成。通过对不同组分物质分子有效激发策略、时序控制方法以及双ICCD成像技术进行了分析,最终实现了对火焰反应区、预热区以及燃料分布区域等火焰结构信息瞬态测量及可视化。基于该实验系统,对反扩散射流火焰进行了实验研究。研究结果表明,反扩散射流火焰形式既不同于传统的预混火焰,也不同于常规的扩散火焰,更多表现为部分预混的扩散火焰;较之OH*化学发光成像,多组分平面激光诱导荧光结构更能准确认识火焰的基本形态和燃烧模式,在基础燃烧和工业研究中都具有重要的应用价值。 | 陈爽 Lukasz Jan Kapsta 翁武斌 苏铁 涂晓波 Zhongshan Li | 2018 | 实验流体力学2018，32，1： | 6 |
| 10 | 高吸水聚合物(SAP):新型多功能混凝土外加剂 | Viktor Mechtcherine Lukasz Dudziak Arnd-Eike Brüdern Simone Hempel Christof Schrfl 俞琳 | 2012 | 商品混凝土2012，0，5： | 6 |
| 11 | 约束子结构损伤识别的时序方法研究与试验显示文摘针对大型复杂结构的整体监测常常面临测量信息不足等困难,提出只利用局部动态响应进行子结构损伤识别的约束子结构方法。约束子结构方法是通过子结构响应的卷积组合限制子结构边界的响应为零,来实现施加虚拟支座,从而将子结构分离出整体,然后利用构造的相应子结构内部响应,进行子结构损伤识别。该文利用先分段提取结构响应的子时间序列,再延时排列Toeplitz矩阵的方式,使基于不同响应的构造约束子结构的方程具有相同表达式,统一了约束子结构方法的基本思想。通过测量悬臂梁的局部动力响应,利用局部响应的时间序列实现了子结构的快速准确地分离和识别,验证了方法的实用性和有效性。 | 侯吉林 欧进萍 Lukasz Jankowski | 2013 | 工程力学2013，30，4： | 4 |
| 12 | Impact of the gut microbiota on rodent models of human disease显示文摘Traditionally bacteria have been considered as either pathogens,commensals or symbionts.The mammal gut harbors 1014 organisms dispersed on approximately1000 different species.Today,diagnostics,in contrast to previous cultivation techniques,allow the identification of close to 100%of bacterial species.This has revealed that a range of animal models within different research areas,such as diabetes,obesity,cancer,allergy,behavior and colitis,are affected by their gut microbiota.Correlation studies may for some diseases show correlation between gut microbiota composition and disease parameters higher than 70%.Some disease phenotypes may be transferred when recolonizing germ free mice.The mechanistic aspects are not clear,but some examples on how gut bacteria stimulate receptors,metabolism,and immune responses are discussed.A more deeper understanding of the impact of microbiota has its origin in the overall composition of the microbiota and in some newly recognized species,such as Akkermansia muciniphila,Segmented filamentous bacteria and Faecalibacterium prausnitzii,which seem to have an impact on more or less severe disease in specific models.Thus,the impact of the microbiota on animal models is of a magnitude that cannot be ignored in future research.Therefore,either models with specific microbiota must be developed,or the microbiota must be characterized in individual studies and incorporated into data evaluation. | Axel Kornerup Hansen Camilla Hartmann Friis Hansen Lukasz Krych Dennis Sandris Nielsen | 2014 | World Journal of Gastroenterology2014，20，47： | 4 |
| 13 | 基于虚拟变形法的车-桥耦合系统移动质量识别显示文摘利用双自由度质量-弹簧阻尼模型模拟移动车辆,并基于虚拟变形(VDM)方法的结构快速重分析思想,提出一种车-桥耦合系统的移动质量快速识别的有效方法.该方法以双自由度车体模型的质量为变量,通过最小化桥体结构实测响应和计算响应的平方距离来识别移动质量(载荷),避免了识别载荷时常遇到的病态问题,对噪声鲁棒性强,且需要传感器信息少.每步优化中,利用在VDM方法基础上提出的移动动态影响矩阵概念,无需时时重构车-桥耦合系统的时变系统参数矩阵,显著提高了计算效率.利用数值框架梁模型,通过比较不同车辆简化模型对移动体质量及等效移动载荷的识别效果,验证了该方法的可行性和有效性,即使在5%的噪声影响下,利用一个传感器可以准确地识别多个移动体的质量. | 张青霞 段忠东 Lukasz Jankowski | 2011 | 力学学报2011，43，3： | 4 |
| 14 | Use of machine learning algorithms to assess the state of rockburst hazard in underground coal mine openings显示文摘The risk of rockbursts is one of the main threats in hard coal mines. Compared to other underground mines, the number of factors contributing to the rockburst at underground coal mines is much greater.Factors such as the coal seam tendency to rockbursts, the thickness of the coal seam, and the stress level in the seam have to be considered, but also the entire coal seam-surrounding rock system has to be evaluated when trying to predict the rockbursts. However, in hard coal mines, there are stroke or stress-stroke rockbursts in which the fracture of a thick layer of sandstone plays an essential role in predicting rockbursts. The occurrence of rockbursts in coal mines is complex, and their prediction is even more difficult than in other mines. In recent years, the interest in machine learning algorithms for solving complex nonlinear problems has increased, which also applies to geosciences. This study attempts to use machine learning algorithms, i.e. neural network, decision tree, random forest, gradient boosting, and extreme gradient boosting(XGB), to assess the rockburst hazard of an active hard coal mine in the Upper Silesian Coal Basin. The rock mass bursting tendency index WTGthat describes the tendency of the seam-surrounding rock system to rockbursts and the anomaly of the vertical stress component were applied for this purpose. Especially, the decision tree and neural network models were proved to be effective in correctly distinguishing rockbursts from tremors, after which the excavation was not damaged. On average, these models correctly classified about 80% of the rockbursts in the testing datasets. | Lukasz Wojtecki Sebastian Iwaszenko Derek B.Apel Mirosawa Bukowska Janusz Makówka | 2022 | Journal of Rock Mechanics and Geotechnical Engineering2022，14，3： | 4 |
| 15 | 结构损伤与荷载共同识别的研究显示文摘针对结构中同时存在未知损伤和荷载的情况,基于虚拟变形法(VDM)发展一种两者共同识别的时域方法。VDM方法利用虚拟变形模拟结构损伤,可快速计算模型改变后的响应。该文首先结合有限元理论把VDM方法拓展到具有多个单元变形的结构中;然后考虑结构存在未知荷载时,利用未损伤理论模型同时识别荷载和虚拟变形,继而由虚拟变形和单元实际变形的关系来识别判断损伤类型和识别损伤大小;最后通过一个悬臂梁的试验进行方法验证,试验中未知荷载和损伤(包括其类型和大小)均能够被有效识别,并利用提出的移动时间窗和荷载形函数方法实现损伤与荷载的在线识别。 | 张青霞 段忠东 Lukasz Jankowski | 2012 | 工程力学2012，29，12： | 4 |
| 16 | 基于子结构虚拟变形的损伤识别方法显示文摘针对大型土木结构损伤识别优化效率低的问题,提出了子结构虚拟变形方法。虚拟变形方法是一种结构快速重分析的方法,该方法利用单元的虚拟变形模拟结构的损伤,可以在不重新建立有限元模型的情况下,快速计算出结构参数改变后的结构响应。该文基于虚拟变形法的基本思想,对子结构的刚度矩阵进行分解和对损伤后结构运动方程进行整理,推导出利用子结构的虚拟变形刻画损伤的方法,扩展了虚拟变形方法的适用范围;并且给出了虚拟变形和结构响应的相关性计算公式,通过相关性分析提取主要的虚拟变形,减少参与计算的子结构虚拟变形的数目,提高计算效率;最后利用一个五十层框架的数值仿真验证方法的有效性。 | 张青霞 侯吉林 段忠东 Lukasz Jankowski | 2013 | 工程力学2013，30，12： | 3 |
| 17 | Chemical and behavioral analysis of the cuticular hydrocarbons from Asian citrus psyllid, Diaphorina citri显示文摘Huanglongbing (HLB ) 是世界范围的柠檬的最破坏的疾病。亚洲柠檬 psyllid, Diaphorina citri Kuwayama (半翅类:Psyllidae ) ,住在韧皮部的细菌的向量, Candidatus Liberibacter asiaticus,它被假定在佛罗里达引起 HLB 柠檬。实验室和领域研究被进行检验男、女的 D 的行为的回答。citri 到他们的表皮的摘录。在 olfactometer 试金,更多的男 D。citri 比空白的控制被吸引到一,五,或 10 个女表皮的摘录等价物单位。结果在清楚或黄的陷井在引诱了, 10 个女表皮的摘录等价物单位吸引了的领域研究被证实成比例地更多的男性与男表皮的摘录或 unbaited 陷井比清楚的陷井引诱了。男、女的 D 的表皮的成分的分析。citri 在他们的表皮的摘录的化学作文揭示了性之间的差别。有从表皮的摘录识别的合成化学药品的实验室生物鉴定显示 dodecanoic 酸比干净空气吸引了更多的男性。与 dodecanoic 酸引诱的陷井没增加 D 的全部的钩子。作为与空白相比,在剂量的陷井测试了的 citri;然而, psyllid 钩子的性比率是在与装载测试的剂量(10.0 mg ) 的最高的诱惑引诱的陷井上偏导的男性。 | Rajinder S. Mann Russell L. Rouseff Jack Smoot Nandikeswara Rao Wendy L. Meyer Stephen L. Lapointe Paul S. Robbins Dong Cha Charles E. Linn Francis X. Webster Siddharth Tiwari Lukasz L. Stelinski | 2013 | Insect Science2013，20，3： | 3 |
| 18 | 基于附加虚拟质量的结构损伤识别方法显示文摘针对大型土木结构的模态信息往往对局部损伤灵敏度较低的特点,提出通过在各个子结构上附加虚拟质量的方法提高局部灵敏度,实现整体结构的准确损伤识别。该方法无需在结构上布置真实质量,它首先利用虚拟变形法(VDM)可进行结构快速重分析的思想,由实测结构的激励和加速度响应,构造结构附加虚拟质量后虚拟结构的频率响应;然后结合灵敏度分析和附加质量与频率关系,确定所需附加质量和对应具有较高灵敏度的频率;最后分别在每个子结构上附加虚拟质量,联合所有虚拟结构和对应的频率即可准确快速地识别出整体结构各个子结构的损伤。本文通过两层平面框架有限元模型验证了附加质量损伤识别方法的有效性。 | 侯吉林 王真真 欧进萍 Lukasz Jankowski | 2013 | 计算力学学报2013，30，6： | 3 |
| 19 | Shape control over microwave hydrothermally grown Y2O3:Eu by europium concentration adjustment显示文摘Two-step synthesis of Y2O3:Eu nanostructures was performed.It includes microwave driven hydrothermal and calcination stages.Performed route results in crystallization of Y4O(OH)g(NO3):Eu crystals initially,then Y2O3:Eu crystals after calcination.Arranged Eu contents in relation to overall cation quantity were set to 2 mol%,10 mol%and 20 mol%.Varying europium concentrations influence habit of obtained Y4O(OH)g(NO3):Eu crystals from needle-like to plate-like and as a result,also shapes of final Y2O3:Eu nanostructures.Additionally,certain amount of Eu2+ions was detected in as-grown material using laser spectroscopy and decay kinetics measurements.Obtained material was calcined at 1200°C in the air,which results in oxidation of Eu2+ions and crystallization of small number of cubic EU2 O3 nanocrystals.Characterization of obtained materials was performed using XRD,SEM,TEM,EDX,CL,Raman and photoluminescence spectroscopy. | Jaroslaw Kaszewski Julita Rosowska Bartlomiej S.Witkowski Lukasz Wachnicki Karolina Wenelska Ewa Mijowska Lev-Ivan Bulyk Damian Wlodarczyk Andrzej Suchocki Boleslaw Kozankiewicz Marek Godlewski | 2019 | Journal of Rare Earths2019，37，11： | 3 |
| 20 | 基于局部动力测试的结构损伤识别方法与试验显示文摘为解决试验数据采集量少、数据信息不完备、结构局部损伤识别敏感性低等问题,提出利用结构局部动力测试数据进行结构损伤的方法。首先,通过原结构局部动力测试试验,得到原结构的局部激励时程曲线和加速度响应时程曲线;然后,在试验数据基础上,根据附加虚拟质量法构造新结构,并求得新结构的加速度频率响应函数;接着,根据频率响应函数,识别出新结构的试验频率,并将该频率与有限元模型计算得到理论频率对比,识别原结构的损伤。桁架结构的局部动力测试结果表明,所提方法可以准确地识别出桁架结构的损伤,并且具有较高的精度。 | 侯吉林 王海燕 陈正弟 JANKOWSKI Lukasz | 2020 | 中国测试2020，46，6： | 3 |
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