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Structural engineering of high-entropy alloys for advanced electrocatalytic reactions

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Tungsten 2025年第1期7卷 1-31页

作者： qiao Xie ying-jie Yu Hai-Jun Zhang Ya-Ping Deng Wen Lei The State Key Laboratory of Refractories and Metallurgy Wuhan University of Science and Technology Department of Chemical Engineering Waterloo Institute for Sustainable Energy Waterloo Institute for Nanotechnology University of Waterloo

High-entropy alloys(HEAs) have emerged as promising candidates to replace traditional precious metal catalysts,owing to their unique chemical and physical *** review commences by revisiting the fundamental concepts of HEAs,including their synthesis methods and structural control strategies in *** underscores the critical role of meticulously manipulating both macroscopic and microscopic structures of the HEAs to optimize their catalytic performance.A deep understanding of the structure-activity relationship in HEAs across various configurations is pivotal in developing more effective *** review methodically encapsulates the research progress of structural control strategies for HEAs in achieving efficient energy conversion,with the aim of gaining a better understanding of the relationship between structure and *** review concludes by summarizing the current achievements and challenges,and suggestions for potential future directions of HEAs in the fields of energy conversion and environmental purification.

关键词： Electrocatalytic Energy conversion High-entropy alloys Structural modulation

Does human papillomavirus infection do harm to in-vitro fertilization outcomes and subsequent pregnancy outcomes？

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Chinese Medical Journal 2013年第4期126卷 683-687页

作者： YANG Rui WANG ying qiao jie LIU Ping GENG Li GUO Yan-li Department of Obstetrics and Gynecology Reproductive Medical Center Peking University Third Hospital Beijing 100191 China

Background Some studies suggested that human papillomavirus （HPV） infection could reduce the clinical pregnancy rate and double the spontaneous abortion rate compared with non-infected women after in-vitro fertilization and embryo transfer （IVF-ET）. But some other studies showed there was no difference between HPV infected and non-infected groups of ART outcomes. The role of HPV infection in infertile women undergoing IVF treatments has been a controversial issue which this article attempts to investigate. Methods This is a retrospective analysis of 3880 infertile women undergoing IVF treatment at Peking University Third hospital reproductive medical center in 2008. Patients with abnormal thin-layer preparation cytologic test （TCT） results who underwent fresh cycle embryo transfer were divided into an HPV positive group （n=56） and an HPV negative group （n=56）. The clinical parameters were compared （using Student＇s t-test and chi-squared test）. Univariate and multivariate analyses were taken to see if HPV infection affects the clinical pregnancy rate. Results Of the 3880 cases 157 had TCT abnormality （4.0%）. Of the 149 patients who had HPV test results, 112 women （81.2%） received a fresh cycle embryo transfer. Each group had 56 cases. The patients were of similar age and BMI, basic hormone levels, and infertile factors were similar. The gonadotropin use, oocyte retrieval number, clinical pregnancy rate, abortion rate and newborn condition were all similar between groups. Analyses showed neither HPV infection nor HPV hybrid capture （HC） II results affected clinical pregnancy rate after IVF treatments, but the FSH level did. Conclusion HPV positivity did not appear to impact assisted reproductive technology （ART） success. ＂Extensive treatment＂ for HPV before IVF was not recommended because treatment time will increase age and reduce ovarian function, which will lead to inferior IVF outcomes.

关键词： human papillomaviruses thin-layer preparation cytologic test hybrid capture II in-vitro fertilization and embryo transfer

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纤维增强隐身复合材料的研究进展

材料工程 2011年第8期39卷 87-92页

作者：张晓红乔英杰哈尔滨工程大学材料科学与化学工程学院哈尔滨150001

隐身技术是现代军事装备必不可少的技术,隐身材料是现代隐身技术重要的物质基础。本文从力学性能与电磁性能的角度出发,综述了不同构成成分的纤维增强隐身材料的在国内外的发展历程与现状,指出了在隐身技术研究中可能的发展方向。

关键词：隐身技术力学性能电磁性能

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Cr掺杂碳陶瓷复合材料结构和力学性能研究

哈尔滨工程大学学报 2004年第6期25卷 814-817页

作者：乔英杰王殿富哈尔滨工业大学航天学院

石墨材料具有优良的导电性、导热性、耐热冲击性、化学稳定性、自润滑性、独特的高温稳定性和高温机械强度.因此,在航天、航空、核能、机械、化工和高温工程等众多领域获得广泛应用.常规的碳石墨材料存在机械强度不高,气孔率高,使用可... 详细信息

石墨材料具有优良的导电性、导热性、耐热冲击性、化学稳定性、自润滑性、独特的高温稳定性和高温机械强度.因此,在航天、航空、核能、机械、化工和高温工程等众多领域获得广泛应用.常规的碳石墨材料存在机械强度不高,气孔率高,使用可靠性变差等缺点.该文利用Cr掺杂改性碳石墨材料,研究了掺杂量对碳陶瓷复合材料力学的影响,并从微观角度解释了Cr对碳陶瓷复合材料力学性能影响机理.从研究结果可以看出,10%的Cr掺杂可使碳陶瓷复合材料抗折强度提高20.7%,抗压强度提高33%,气孔率降低16 67%,其机理在于Cr掺杂在碳陶瓷复合材料制备过程中原位生成Cr3C2晶体.

关键词： Cr 掺杂碳陶瓷复合材料微观结构力学性能

导流装置对直接空冷单元流场特性影响的数值模拟

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电站系统工程 2012年第4期28卷 21-22,30页

作者：刘达乔英杰华电电力科学研究院中航商用飞机发动机有限责任公司

横向风会造成直接空冷凝汽器换热效果严重恶化,横向风对直接空冷凝汽器换热效果影响的问题亟待解决。在1000 MW直接空冷机组凝汽器的典型结构上,建立带有导流叶片装置的直接空冷凝汽器三维流动模型,利用CFD模拟不同速度的横向风条件下... 详细信息

横向风会造成直接空冷凝汽器换热效果严重恶化,横向风对直接空冷凝汽器换热效果影响的问题亟待解决。在1000 MW直接空冷机组凝汽器的典型结构上,建立带有导流叶片装置的直接空冷凝汽器三维流动模型,利用CFD模拟不同速度的横向风条件下直接空冷单元A字型内部的空气流场。研究表明:在横向风条件下空冷单元A字型内部会产生回流区,随着风速增大,回流区域影响范围逐渐增大;加装外导流装置可以减小横向风的影响,增加风机进风量,提高空冷单元的换热效率。

关键词： CDF 直接空冷凝汽器内部流场导流叶片

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不锈钢表面低温热扩渗层制备及其耐蚀性

材料热处理学报 2016年第6期37卷 1-9页

作者：刘瑞良闫牧夫乔英杰哈尔滨工程大学超轻材料与表面技术教育部重点实验室材料科学与化学工程学院黑龙江哈尔滨150001 哈尔滨工业大学金属精密热加工国家级重点实验室材料科学与工程学院黑龙江哈尔滨150001

综述了不锈钢表面低温热扩渗层制备技术及其腐蚀行为的研究方法,分析了不锈钢表面低温热扩渗层制备及其腐蚀行为研究的现状及存在的问题。结果表明:与大量的力学性能研究相比,对不锈钢(特别是马氏体不锈钢)表面低温热扩渗层(如低温渗氮... 详细信息

综述了不锈钢表面低温热扩渗层制备技术及其腐蚀行为的研究方法,分析了不锈钢表面低温热扩渗层制备及其腐蚀行为研究的现状及存在的问题。结果表明:与大量的力学性能研究相比,对不锈钢(特别是马氏体不锈钢)表面低温热扩渗层(如低温渗氮、渗碳和氮碳共渗等)腐蚀行为的研究相对较少,采用的主要研究方法是常规的极化曲线和电化学阻抗谱等方法。随着低温热扩渗技术在不锈钢表面改性上的成功应用及其应用领域的扩展,借助腐蚀领域中新的理论和研究方法,研究不锈钢表面低温热扩渗层的腐蚀行为,准确揭示渗层腐蚀机制,已经势在必行。

关键词：不锈钢低温热扩渗制备耐蚀性

Storage time affects the level and diagnostic efficacy of plasma biomarkers for neurodegenerative diseases

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Neural Regeneration Research 2025年第8期20卷 2373-2381页

作者： Lifang Zhao Mingkai Zhang Qimeng Li Xuemin Wang jie Lu ying Han Yanning Cai Department of Clinical Biobank Xuanwu HospitalCapital Medical UniversityBeijingChina Beijing Geriatric Medical Research Center BeijingChina Department of Neurology Xuanwu HospitalCapital Medical UniversityBeijingChina Department of Radiology and Nuclear Medicine Xuanwu HospitalCapital Medical UniversityBeijingChina Beijing Key Laboratory of Magnetic Resonance Imaging and Brain Informatics BeijingChina Key Laboratory of Neurodegenerative diseases Ministry of EducationBeijingChina School of Biomedical Engineering Hainan UniversityHaikouHainan ProvinceChina Center of Alzheimer’s Disease Beijing Institute for Brain DisordersBeijingChina National Clinical Research Center for Geriatric Diseases BeijingChina Institute of Biomedical Engineering Shenzhen Bay LaboratoryGaoke Innovation CenterShenzhenGuangdong ProvinceChina Department of Neurobiology Xuanwu HospitalCapital Medical UniversityBeijingChina

Several promising plasma biomarker proteins,such as amyloid-β(Aβ),tau,neurofilament light chain,and glial fibrillary acidic protein,are widely used for the diagnosis of neurodegenerative ***,little is known about the long-term stability of these biomarker proteins in plasma samples stored at-80°*** aimed to explore how storage time would affect the diagnostic accuracy of these biomarkers using a large *** samples from 229 cognitively unimpaired individuals,encompassing healthy controls and those experiencing subjective cognitive decline,as well as 99 patients with cognitive impairment,comprising those with mild cognitive impairment and dementia,were acquired from the Sino Longitudinal Study on Cognitive Decline *** samples were stored at-80°C for up to 6 years before being used in this *** results showed that plasma levels of Aβ42,Aβ40,neurofilament light chain,and glial fibrillary acidic protein were not significantly correlated with sample storage ***,the level of total tau showed a negative correlation with sample storage ***,in individuals without cognitive impairment,plasma levels of total protein and tau phosphorylated protein threonine 181(p-tau181)also showed a negative correlation with sample storage *** was not observed in individuals with cognitive ***,we speculate that the diagnostic accuracy of plasma p-tau181 and the p-tau181 to total tau ratio may be influenced by sample storage ***,caution is advised when using these plasma biomarkers for the identification of neurodegenerative diseases,such as Alzheimer's ***,in cohort studies,it is important to consider the impact of storage time on the overall results.

关键词： Alzheimer’s disease amyloid-β diagnostic ability glial fibrillary acidic protein neurodegeneration neurofilament light chain plasma biomarkers single molecule array storage time tau

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粉末冶金法制备Al-Pb合金微观组织分析

材料工程 2009年第12期37卷 22-25页

作者：逄锦程乔英杰耿林范国华哈尔滨工程大学哈尔滨150001 哈尔滨工业大学哈尔滨150001

采用机械合金化与真空热压烧结制备Al-Pb合金,并通过热挤压变形细化显微组织。XRD检测分析表明:Al,Pb衍射峰随机械合金化的进行不断宽化,晶粒尺寸减小。SEM分析表明:球磨15h后可以得到合金粉末,其具有Pb粒子弥散分布于Al基体的复相结构... 详细信息

采用机械合金化与真空热压烧结制备Al-Pb合金,并通过热挤压变形细化显微组织。XRD检测分析表明:Al,Pb衍射峰随机械合金化的进行不断宽化,晶粒尺寸减小。SEM分析表明:球磨15h后可以得到合金粉末,其具有Pb粒子弥散分布于Al基体的复相结构。再通过550℃/20MPa真空热压烧结1h,可制备出Al-Pb合金块体。适当的热挤压工艺能够细化组织,减小Pb颗粒的尺寸。其抗拉强度可达231.6MPa,延伸率为17.6%。

关键词： Al-Pb合金机械合金化真空热压烧结热挤压

乳腺癌患者血清miR-132、miR-145、MMP-16水平变化及其与临床病理特征的关系分析

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药物生物技术 2021年第6期28卷 623-627页

作者：龙芬乔英杰黄兴恩施自治州中心医院肿瘤科湖北恩施445000 金华市妇幼保健院重症医学科浙江金华321000

探讨乳腺癌患者血清微小核糖核酸-132(miR-132)、微小核糖核酸-145(miR-145)、基质金属蛋白酶-16(MMP-16)水平变化及其与临床病理特征的关系。回顾性选取150例2018年1月~2021年1月恩施自治州中心医院肿瘤科收治的乳腺肿瘤患者作为研究对... 详细信息

探讨乳腺癌患者血清微小核糖核酸-132(miR-132)、微小核糖核酸-145(miR-145)、基质金属蛋白酶-16(MMP-16)水平变化及其与临床病理特征的关系。回顾性选取150例2018年1月~2021年1月恩施自治州中心医院肿瘤科收治的乳腺肿瘤患者作为研究对象,根据临床病理及影像学检查结果将其分为乳腺癌组(100例)、乳腺良性肿瘤组(50例),另选60例同期于该院进行健康体检的健康人群作为对照组。比较3组血清miR-132、miR-145、MMP-16水平,并分析血清miR-132、miR-145、MMP-16水平与乳腺癌临床病理特征的关系。乳腺癌组血清miR-132、miR-145水平均低于乳腺良性肿瘤组和对照组,且乳腺良性肿瘤组各指标均低于对照组(P50 mm的乳腺癌患者血清miR-132、miR-145水平低于肿瘤大小20~50 mm、≤20 mm者,且肿瘤大小20~50 mm者低于肿瘤大小≤20 mm者;而血清MMP-16水平肿瘤大小>50 mm高于肿瘤大小20~50 mm、≤20 mm者,且肿瘤大小20~50 mm者高于肿瘤大小≤20 mm者。TNM分期为Ⅲ~Ⅳ期的乳腺癌患者血清miR-132、miR-145水平低于Ⅰ~Ⅱ期者,而血清MMP-16水平高于Ⅰ~Ⅱ期者;存在淋巴结转移的乳腺癌患者血清miR-132、miR-145水平低于无淋巴结转移者,而血清MMP-16水平高于无淋巴结转移者(P<0.05)。血清miR-132、miR-145在乳腺癌患者中呈低表达,而血清MMP-16在乳腺癌患者中呈高表达,且血清miR-132、miR-145水平过低,血清MMP-16水平过高可促进乳腺癌的发生、发展及转移,因此三者可作为判断乳腺癌疾病进展情况的重要指标。

关键词：乳腺癌乳腺良性肿瘤微小核糖核酸-132 微小核糖核酸-145 基质金属蛋白酶-16 病理特征