检索结果-南通市图书馆

Asian Journal of Andrology 2018年第3期20卷 265-269页

作者： Jin-You Wang ming-zhu gao De-Xin Yu Dong-Dong Xie Yi Wang Liang-Kuan Bi Tao Zhang De-Mao Ding Department of Urology The Second Affiliated Hospital of Anhui Medical University Hefei 230601 China Department of Oncology The Second Affiliated Hospital of Anhui Medical University Hefei 230601 China

The present study aimed to investigate the relationship between histopathological subtype and the probability of inguinal lymph node metastasis （ILNM） in patients with penile squamous cell carcinoma （PSCC）. The clinical records of 198 consecutive patients with PSCC were analyzed retrospectively. Primary lesions were reevaluated according to the 2016 World Health Organization （WHO） histopathological classification. We retrieved the clinicopathological factors from the medical records including age, clinical lymph node stage, pathological tumor stage, lymphatic invasion, and nerve invasion. Uni- and multivariate logistic regression analyses were used to explore the risk factors of ILNM. Multivariate analyses identified clinical lymph node stage （P = 0.000）, pathological tumor stage （P = 0.016）, histologic grade （P = 0.000）, and risk group of histological subtypes （P = 0.029） as independent predictors for ILNM. Compared with the low-risk group of PSCC subtypes, the intermediate- （HR： 3.66, 95% CI. 1.30-10.37, P = 0.021） and high-risk groups （HR： 28.74, 95% Ch 2.37-348.54, P = 0.008） were significantly associated with ILNM. In conclusion, the histopathological subtype of the primary lesion is a significant predictor for ILNM in patients with PSCC.

关键词： histopathological subtype inguinal lymph node metastasis penile neoplasm squamous cell carcinoma

Toripalimab in combination with chemotherapy effectively suppresses local recurrence and metastatic sarcomatoid renal cell carcinoma:A case report

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

World Journal of Clinical Cases 2024年第28期12卷 6230-6236页

作者： ming-zhu gao Nian-Fei Wang Jin-You Wang Li Ma Yu-Cai Yang Department of Oncology the Second Affiliated Hospital of Anhui Medical UniversityHefei 230601China Department of Urology the Second Affiliated Hospital of Anhui Medical UniversityHefei 230601China Department of Pathology the Second Affiliated Hospital of Anhui Medical UniversityHefei 230601China

BACKGROUND Sarcomatoid renal cell carcinoma(SRCC)is a rare variant of renal cell carcinoma associated with an unfavorable *** efficacy of conventional chemo-therapy and targeted therapies are limited,whereas the emergence of immune checkpoint inhibitor has introduced new avenues for managing advanced *** SUMMARY A 77-year-old female patient was referred to our hospital following the incidental detection of a right kidney tumor without specific *** tumor was successfully resected,and subsequent pathological examination confirmed *** experienced both local recurrence and distant metastasis eight months after the initial laparoscopic *** six cycles of toripalimab combined with pirarubicin chemotherapy,the patient achieved a partial ***-quently,the patient attained an almost-complete continuous response to toripa-limab monotherapy maintenance for an additional six *** has not experienced disease progression for 15 months,and her overall survival has reached 24 months thus *** Combination therapy with programmed death 1 antibodies and cytotoxic agents may be a recommended first-line treatment approach for SRCC.

关键词： Renal cell carcinoma Sarcomatoid dedifferentiation Immune checkpoint inhibitor Chemotherapy Case report

Observation of acoustic hybrid topological phases induced by the p-d orbital interactions

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

Science China(Physics,Mechanics & Astronomy) 2025年第1期Mechanics & Astronomy) .卷 132-139页

作者： Xiao Xiang Feng gao Yu-Gui Peng Peng Wu Zong-Lin Li Xue-Feng zhu School of Physics and Innovation Institute Huazhong University of Science and Technology

In spinless systems,growing attention has recently been attracted to synthetic gauge fields,which redefine the fundamental crystal symmetries by utilizing the projective algebraic ***,synthetic gauge fields have been commonly investigated in single orbital systems,and explorations on hybrid orbitals remain elusive in ***,we report the experimental observation of hybrid topological phases induced by hybrid synthetic gauge flux,which is formed by the interaction between p and d orbitals embedded in acoustic *** breaking the translation symmetries of Lxand/or Ly,we unambiguously demonstrate the first-order M?bius edge states and higher-order corner *** work establishes a platform for seeking exotic topological phases induced by hybrid-orbitals interactions and initializing the framework of hybrid-orbitalsrelated topological *** applications can be anticipated in scenarios such as high-quality sensing and robust wave trapping due to the stepwise energy distribution of the hybrid topological phase.

关键词： topological insulator synthetic gauge field projective symmetry corner states

Low-cost and fluoride-free synthesis of MFI zeolite nanosheets with enhanced stability for benzene alkylation with ethanol

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 Energy Chemistry 2025年第1期100卷 458-468页

作者： Peng zhu Cun Liu Yiren Yu Guoshu gao Yumeng Zhao Xiongfu Zhang Guodong Liu Guohui Yang State Key Laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology State Key Laboratory of Catalysis Dalian Institute of Chemical Physics Chinese Academy of Sciences

Zeolite nanosheets with a short b-axis thickness are highly desirable in lots of catalytic reactions due to their reduced diffusion resistance. Nevertheless, conventional synthesis methods usually require expensive structure-directing agents(SDAs), pricey raw materials, and eco-unfriendly fluorine-containing additives. Here, we contributed a cost-effective and fluoride-free synthesis method for synthesizing high-quality MFI zeolite nanosheets through a Silicalite-1(Sil-1) seed suspension and urea cooperative strategy, only with inexpensive colloidal silica as the Si source. Our approach was effective for synthesizing both Sil-1 and aluminum-containing ZSM-5 nanosheets. By optimizing key synthesis parameters,including seed aging time, seed quantity, and urea concentration, we achieved precise control over the crystal face aspect ratio and b-axis thickness. We also revealed a non-classical oriented nanosheet growth mechanism, where Sil-1 seeds induced the formation of quasi-ordered precursor particles, and the(010)crystal planes of these particles facilitated urea adsorption, thereby promoting c-axis-oriented *** obtained ZSM-5 nanosheets exhibited exceptional catalytic performance in the benzene alkylation with ethanol, maintaining stability for over 500 h, which is 5 times longer than traditional ZSM-5 catalysts. Furthermore, large-scale production of ZSM-5 nanosheets was successfully carried out in a 3 L highpressure autoclave, yielding samples consistent with those from laboratory-scale synthesis. This work marks a significant step forward in the sustainable and efficient production of MFI nanosheets using inexpensive and environmentally friendly raw materials, offering the broad applicability in catalysis.

关键词： MFI zeolite ZSM-5 Nanosheets Scale-up synthesis Aromatic alkylation

在线全文

同方期刊数据库

学校读者我要写书评

暂无评论

基于考试过程和知识结构的数据挖掘算法研究

计算机科学 2018年第B6期45卷 437-441页

作者：代明竹高嵩峰北京建筑大学机电与车辆工程学院北京100044

为了研究学生在不同阶段对知识点的掌握情况,基于对数据挖掘的理论研究,把知识结构与考试成绩相结合来进行数据研究。以教育测量学为基础,结合数据挖掘的决策树算法,针对原有的C4.5算法提出改进算法,应用试卷中涉及到的知识点的难易程... 详细信息

为了研究学生在不同阶段对知识点的掌握情况,基于对数据挖掘的理论研究,把知识结构与考试成绩相结合来进行数据研究。以教育测量学为基础,结合数据挖掘的决策树算法,针对原有的C4.5算法提出改进算法,应用试卷中涉及到的知识点的难易程度与知识点种类进行知识结构细化,以便确定单个学生或群体学生对知识点的掌握程度和试卷中各知识点之间的关系。结果显示,改进后算法的计算公式比原计算公式简单实用;根据决策树模型,使用剩余数据对计算公式进行验证,能够更快地得出对程序设计这个知识点的掌握是影响成绩相对重要的因素。使用测试数据对已创建的决策树进行验证,准确率为90%。最后对决策树进行可视化展示,为学生的学习安排、教师的教学方案及安排等提供有效的参考。

关键词：数据挖掘决策树 C4.5 知识结构试卷分析

Review of precipitation strengthening in ultrahigh-strength martensitic steel

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 256-269页

作者： Zhihao Tian Chunlei Shang Chaolei Zhang Xiaoye Zhou Honghui Wu Shuize Wang Guilin Wu Junheng gao Jiaming zhu Xinping Mao Institute for Carbon Neutrality University of Science and Technology BeijingBeijing 100083China Institute of Steel Sustainable Technology Liaoning Academy of MaterialsShenyang 110004China Department of Materials Science and Engineering Shenzhen MSU-BIT UniversityShenzhen 518172China Institute of Materials Intelligent Technology Liaoning Academy of MaterialsShenyang 110004China School of Civil Engineering Shandong UniversityJinan 250061China

Martensite is an important microstructure in ultrahigh-strength steels,and enhancing the strength of martensitic steels often involves the introduction of precipitated phases within the martensitic *** considerable research efforts devoted to this area,a systematic summary of these advancements is *** review focuses on the precipitates prevalent in ultrahigh-strength martensitic steel,primarily carbides(e.g.,MC,M_(2)C,and M_(3)C)and intermetallic compounds(e.g.,Ni Al,Ni_(3)X,and Fe_(2)Mo).The precipitation-strengthening effect of these precipitates on ultrahigh-strength martensitic steel is discussed from the aspects of heat treatment processes,microstructure of precipitate-strengthened martensite matrix,and mechanical ***,a perspective on the development of precipitation-strengthened martensitic steel is presented to contribute to the advancement of ultrahigh-strength martensitic *** review highlights significant findings,ongoing challenges,and opportunities in the development of ultrahigh-strength martensitic steel.

关键词： ultrahigh-strength martensitic steel precipitation strengthening mechanical property carbide intermetallic compound

在线全文

学校读者我要写书评

暂无评论

增稠在丙烯酸酯乳液胶黏剂分子设计中的作用

化学与粘合 2005年第5期27卷 313-315页

作者：朱明高宁波大学化学系浙江宁波315211

在制备乳液胶黏剂时经常要将乳液增稠。本文从减小乳液胶黏剂的表面张力、提高乳液胶黏剂的稳定性、为不使胶黏剂渗入被粘材料、为使胶黏剂涂复的厚度达到一定的要求等四个方面分析了增稠在乳液胶黏剂分子设计中的作用,并对乳液胶黏剂... 详细信息

在制备乳液胶黏剂时经常要将乳液增稠。本文从减小乳液胶黏剂的表面张力、提高乳液胶黏剂的稳定性、为不使胶黏剂渗入被粘材料、为使胶黏剂涂复的厚度达到一定的要求等四个方面分析了增稠在乳液胶黏剂分子设计中的作用,并对乳液胶黏剂的增稠方法,内增稠和外增稠作了详细的介绍。

关键词：增稠乳液胶黏剂分子设计

Investigation of bubbles escape behavior from low basicity mold flux for high-Mn high-Al steels using 3D X-ray microscope

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 102-110页

作者： Qiang Liu Xiang Li Shen Du ming gao Yanbin Yin Jiongming Zhang State Key Laboratory of Advanced Metallurgy University of Science and Technology BeijingBeijing 100083China

During the continuous casting process of high-Mn high-Al steels,various types of gases such as Ar need to escape through the top of the *** which,the behavior of bubbles traversing the liquid slag serves as a restrictive link,closely associated with viscosity and the thickness of liquid *** contrast to two-dimensional surface observation,three-dimensional(3D)analysis method can offer a more intuitive,accurate,and comprehensive ***,this study employs a 3D X-ray microscope(3D-XRM)to obtained spatial distribution and 3D morphological characteristics of residual bubbles in mold flux under different basicity of liquid slag,different temperatures,and different holding *** results indicate that as basicity of slag increases from 0.52 to 1.03,temperature increases from 1423 to 1573 K,the viscosity of slag decreases,the floating rate of bubbles *** addition,when holding time increases from 10 to 30 s,the bubbles floating distance increases,and the volume fraction and average equivalent sphere diameter of the bubbles solidified in the mold flux gradually *** one word,increasing the basicity,temperature,and holding time leading to an increase in the removal rate of bubbles especially for the *** findings of bubbles escape behavior provide valuable insights into optimizing low basicity mold flux for high-Mn high-Al steels.

关键词： mold flux low basicity bubbles three-dimensional X-ray microscope viscosity

Structural and microwave absorption properties of CoFe_(2)O_(4)/residual carbon composites

在线全文

学校读者我要写书评

暂无评论

International Journal of Minerals,Metallurgy and Materials 2025年第1期32卷 221-232页

作者： Yuanchun Zhang Shengtao gao Xingzhao Zhang Dacheng Ma Chuanlei zhu Jun He Joint National-Local Engineering Research Centre for Safe and Precise Coal Mining Anhui University of Science and TechnologyHuainan 232001China School of Chemical and Blasting Engineering Anhui University of Science and TechnologyHuainan 232001China

Electromagnetic interference,which necessitates the rapid advancement of substances with exceptional capabilities for bsorbing electromagnetic waves,is of urgent concern in contemporary *** this work,CoFe_(2)O_(4)/residual carbon from coal gasification fine slag(CFO/RC)composites were created using a novel hydrothermal *** mechanisms for microwave absorption,including conductive loss,natural resonance,interfacial dipole polarization,and magnetic flux loss,are involved in these ***,compared with pure residual carbon materials,this composite offers superior capabilities in microwave *** 7.76GHz,the CFO/RC-2 composite achieves an impressive minimum reflection loss(RL_(min))of-43.99 dB with a thickness of 2.44 ***,CFO/RC-3 demonstrates an effective absorption bandwidth(EAB)of up to 4.16 GHz,accompanied by a thickness of *** study revealed the remarkable capability of the composite to diminish electromagnetic waves,providing a new generation method for microwave absorbing materials of superior quality.

关键词： coal gasification slag residual carbon hydrothermal method microwave absorption CoFe_(2)O_(4)

在线全文

学校读者我要写书评

暂无评论

钕铁硼电镀前处理酸洗废水中提取钕

材料保护 2007年第12期40卷 77-78页

作者：史志鸿章晓沸朱纪方朱明高宁波塑料电镀厂浙江宁波315021 宁波甬绿环境保护技术工程有限公司浙江宁波315000 宁波市电镀协会浙江宁波315021

利用选择沉淀法将钕铁硼电镀前处理酸洗废水中的钕和铁进行了分步沉淀。结果表明,此种酸洗废水单独处理不但可使资源再生,而且电镀废水处理后可以稳定达标排放,具有较好的经济效益和社会效益。

关键词：钕铁硼电镀酸洗废水钕回收