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Single-element amorphous metals

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Interdisciplinary Materials 2024年第4期3卷 480-491页

作者： Xiao Han Geng Wu dong sheng he Xun Hong Center of Advanced Nanocatalysis(CAN) Department of Applied ChemistryHefei National Research Center for Physical Sciences at the MicroscaleUniversity of Science and Technology of ChinaHefeiAnhuiChina Core Research Facilities Southern University of Science and TechnologyShenzhenChina

To unveil the nature of amorphous states,single-element amorphous metals have been the perfect research subject due to the simplest ***,the extreme crystal nucleation and growth rate in single-element metal make the synthesis of single-element amorphous metals seemingly impossible in the ***,benefited by several delicate synthetic strategies developed recently,the single-element amorphous metals have been successfully *** review aims to provide a systematic overview of the synthesis of single-element amorphous metals covering the challenges in physics and recent *** addition,current understanding of the atomic and electronic structures of single-element amorphous metal has also been ***,the challenges that worth further investigation are *** identifying the potential avenues for further exploration,this review aims to contribute valuable insights that will propel the cognition of single-element amorphous metals.

关键词： amorphous metal single-element structure synthesis

Single-element amorphous palladium nanoparticles formed via phase separation

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Nano Research 2022年第6期15卷 5575-5580页

作者： dong sheng he Yi Huang Benjamin D.Myers Dieter Isheim Xinyu Fan Guang-Jie Xia Yunsheng Deng Lin Xie Shaobo Han Yang Qiu Yang-Gang Wang Junhua Luan Zengbao Jiao Li Huang Vinayak P.Dravid Jiaqing he Pico Center and Department of Physics Southern University of Science and TechnologyShenzhen 518055China Department of Materials Science and Engineering Northwestern UniversityEvanstonIL 60208USA Department of Chemistry and Guangdong Provincial Key Laboratory of Catalytic Chemistry Southern University of Science and TechnologyShenzhen 518055China Department of Materials Science and Engineering Southern University of Science and TechnologyShenzhen 518055China Department of Materials Science and Engineering City University of Hong KongHong KongChina Department of Mechanical Engineering The Hong Kong Polytechnic UniversityHong KongChina

Physically vitrifying amorphous single-element metal requires ultrahigh cooling rates,which are still unachievable for most of the closest-packed ***,we report a facile chemical synthetic strategy for single-element amorphous palladium nanoparticles with a purity of 99.35 at.%±0.23 at.%from palladium–silicon liquid ***-situ transmission electron microscopy directly detected the solidification of palladium and the separation of *** hydrogen absorption experiment showed that the amorphous palladium expanded little upon hydrogen uptake,exhibiting a great potential application for hydrogen *** results provide insight into the formation of amorphous metal at nanoscale.

关键词： Pd single-element metallic glass nanoparticle phase separation undercooling

Clinico-pathological characteristics and prognosis of young women with breast

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Cancer Advances 2023年第8期6卷 1-6页

作者： Juan Xu Ling-Fan Li Hua-Lin Xiao Jun-Cheng Li sheng-dong he Xiang Ai Peng Sun Department of Breast and Thyroid Surgery The General Hospital of Western Theater CommandChengdu 610083China

Background:Breast cancer is more common among young women in China than in developed *** study analyzes the clinicopathological features and prognosis of young women with breast cancer in southwest *** and Methods:We reviewed the records of 406 breast cancer patients≤35 years old from 2008 to 2017 in southwest China,investigating their biological characteristics and ***:In southwest China,8.77%of breast cancer patients were young *** the number of breast cancer cases increased over time,the proportion of young women *** in stages III and IV accounted for 32%of *** women with breast cancer often experienced local and regional recurrence and had a poor prognosis(5-year disease-free survival rate of 54.9%and 5-year overall survival rate of 71.3%).T and N stages were significantly related to disease-free survival and overall *** receptor status was associated with overall ***:In southwest China,young women with breast cancer tend to present with late-stage clinical features,and the prognosis remains poor.

关键词： breast cancer young women clinicopathological features prognosis

Fast track surgery accelerates the recovery of postoperative insulin sensitivity

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Chinese Medical Journal 2012年第18期125卷 3261-3265页

作者： YANG dong-jie ZHANG sheng he Wei-ling CheN Hua-yun CAI Shi-rong CheN Chuang-qi SONG Xin-ming CUI Ji MAJin-pingI ZHANG Chang-hua he Yu-long Department of Gastrointestinal-Pancreatic Surgery the FirstAffiliated Hospital of Sun Yat-Sen University Guangzhou China Guangdong 510080

Background Few clinical studies or randomized clinical trial results have reported the impact of fast track surgery on postoperative insulin sensitivity. This study aimed to investigate the effects of fast track surgery on postoperative insulin sensitivity in patients undergoing elective open colorectal resection. Methods Controlled, randomized clinical trial was conducted from November 2008 to January 2009 with one-month post-discharge follow-up. Seventy patients with colorectal carcinoma requiring colorectal resection were randomized into two groups： a fast track group （35 cases） and a conventional care group （35 cases）. All included patients received elective open colorectal resection with combined tracheal intubation and general anesthesia. Clinical parameters （complication rates, return of gastrointestinal function and postoperative length of stay）, stress index and insulin sensitivity were evaluated in both groups perioperatively. Results Sixty-two patients finally completed the study, 32 cases in the fast-track group and 30 cases in the conventional care group. Our findings revealed a significantly faster recovery of postoperative insulin sensitivity on postoperative day 7 in the fast-track group than that in the conventional care group. We also found a significantly shorter length of postoperative stay and a significantly faster return of gastrointestinal function in patients undergoing fast-track rehabilitation. Conclusion Fast track surgery accelerates the recovery of postoperative insulin sensitivity in elective surgery for colorectal carcinoma with a shorter length of postoperative hospital stay.

关键词： fast track surgery colorectal carcinoma, insulin sensitivity, clinical trial

Overview of in-situ oxygen production technologies for lunar resources

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International Journal of Minerals,Metallurgy and Materials 2025年第2期32卷 233-255页

作者： Youpeng Xu sheng Pang Liangwei Cong Guoyu Qian dong Wang Laishi Li Yusheng Wu Zhi Wang College of Materials Science and Engineering Shenyang University of TechnologyShenyang 110870China CAS Key Laboratory of Green Process and Engineering National Engineering Research Center for Green Recycling of Strategic Metal ResourcesInstitute of Process EngineeringChinese Academy of SciencesBeijing 100190China Innovation Academy for Green Manufacture Chinese Academy of SciencesBeijing 100190China School of Chemical Engineering University of Chinese Academy of SciencesBeijing 100049China

The rich resources and unique environment of the Moon make it an ideal location for human expansion and the utilization of extraterrestrial ***,crucial for supporting human life on the Moon,can be extracted from lunar regolith,which is highly rich in oxygen and contains polymetallic *** oxygen and metal extraction can be achieved using existing metallurgical ***,the ample reserves of water ice on the Moon offer another means for oxygen *** paper offers a detailed overview of the leading technologies for achieving oxygen production on the Moon,drawing from an analysis of lunar resources and environmental *** delves into the principles,processes,advantages,and drawbacks of water-ice electrolysis,two-step oxygen production from lunar regolith,and one-step oxygen production from lunar *** two-step methods involve hydrogen reduction,carbothermal reduction,and hydrometallurgy,while the one-step methods encompass fluorination/chlorination,high-temperature decomposition,molten salt electrolysis,and molten regolith electrolysis(MOE).Following a thorough comparison of raw materials,equipment,technology,and economic viability,MOE is identified as the most promising approach for future in-situ oxygen production on the *** the corrosion characteristics of molten lunar regolith at high temperatures,along with the Moon's low-gravity environment,the development of inexpensive and stable inert anodes and electrolysis devices that can easily collect oxygen is critical for promoting MOE technology on the *** review significantly contributes to our understanding of in-situ oxygen production technologies on the Moon and supports upcoming lunar exploration initiatives.

关键词： lunar resources in-situ oxygen production space metallurgy molten lunar regolith electrolysis

网络环境下欠发达地区高校图书馆服务现状分析及对策

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辽宁科技大学学报 2008年第6期31卷 640-643页

作者：董和生内蒙古财经学院图书馆内蒙古呼和浩特010051

阐述了网络环境下欠发达地区高校图书馆服务创新等方面存在的问题,并就阻碍服务创新的主要因素进行分析。提出了树立现代图书馆服务理念,寻找图书馆服务的突破点,切实开展高校图书馆间的协作,加强图书馆宣传和读者公共关系工作,参与地... 详细信息

阐述了网络环境下欠发达地区高校图书馆服务创新等方面存在的问题,并就阻碍服务创新的主要因素进行分析。提出了树立现代图书馆服务理念,寻找图书馆服务的突破点,切实开展高校图书馆间的协作,加强图书馆宣传和读者公共关系工作,参与地区社会经济文化建设等措施。

关键词：欠发达地区高校图书馆服务创新

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高校图书馆宣传现状分析及对策

邯郸学院学报 2009年第2期19卷 121-123页

作者：董和生内蒙古财经学院图书馆内蒙古呼和浩特010051

就高校图书馆宣传的现状与存在问题进行深入的分析和探讨,针对高校图书馆宣传的现实,提出应从现代图书馆宣传理念、现代网络信息技术运用、优化组合现代与传统宣传措施和提高馆员素质、提供深层次优质信息服务等方面开展高校图书馆宣传... 详细信息

就高校图书馆宣传的现状与存在问题进行深入的分析和探讨,针对高校图书馆宣传的现实,提出应从现代图书馆宣传理念、现代网络信息技术运用、优化组合现代与传统宣传措施和提高馆员素质、提供深层次优质信息服务等方面开展高校图书馆宣传、提高图书馆效用。

关键词：高等学校图书馆宣传工作

Plasmonic tandem heterojunctions enable high-efficiency charge transfer for broad spectrum photocatalytic hydrogen production

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Journal of Energy Chemistry 2025年第1期100卷 710-720页

作者： Wenxuan Chen Xiu-Qing Qiao Guo Hui Bojing Sun dongfang Hou Meidi Wang Xueqian Wu Tao Wu dong-sheng Li College of Materials and Chemical Engineering Key Laboratory of Inorganic Nonmetallic Crystalline and Energy Conversion Materials China Three Gorges University Hubei Three Gorges Laboratory College of Chemistry and Materials Science and Guangdong Provincial Key Laboratory of Supramolecular Coordination Chemistry Jinan University

Rational engineering of semiconductor photocatalysts for efficient hydrogen production is of great significance but still challenging,primarily due to the limitations in charge transfer ***,a fascinating plasmonic tandem heterojunction with the hc-CdS/Mo2C@C heterostructure is aimfully prepared for effectively promoting the charge separation kinetics of the CdS photocatalyst via the synergistic strategy of phase junction,Schottky junction,and photothermal *** difference in atomic configuration between cubic-CdS （c-CdS） and hexagonal-CdS （h-CdS） leads to effective charge separation through a typical Ⅱ charge transfer mechanism,and plasmonic Schottky junction further extracts the electrons in the hc-CdS phase junction to realize gradient charge ***,the photothermal effect of Mo2C@C helps to expand the light absorption,accelerate charge transfer kinetics,and reduce the hydrogen evolution energy *** carbon layer provides a fast channel for charge transfer and protects the photocatalyst from *** a result,the optimized hc-CMC photocatalyst exhibits a significantly high photocatalytic H2production activity of 28.63 mmol/g/h and apparent quantum efficiency of 61.8%,surpassing most of the reported *** study provides a feasible strategy to enhance the charge transfer kinetics and photocatalytic activity of CdS by constructing plasmonic tandem heterogeneous junctions.

关键词： heterojunctions LSPR Photocatalyst Phase junction Schottky junction Photothermal effect

多尺度协同改性PF/RHDPE复合材料的力学与非等温结晶动力学性能对比

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塑料工业 2019年第A1期47卷 67-72页

作者：吴正环叶勇陈阳董和生吾兰天津职业技术师范大学机械工程学院天津300222 汽车模具智能制造国家地方联合工程实验室天津300222 国家模具产品质量监督检验中心广东东莞523841 聚合物成型加工工程教育部重点实验室华南理工大学聚合物新型成型装备国家工程研究中心广东广州510640

制备了硅烷偶联剂(SCA)与马来酸酐接枝聚乙烯(MAH-g-PE)复合改性的3种不同尺度的杨木纤维(PF)增强增韧再生高密度聚乙烯(RHDPE)复合材料,并对比了三种复合材料的力学性能与非等温结晶性能。结果显示,粒径为80目的协同改性PF可明显提升... 详细信息

制备了硅烷偶联剂(SCA)与马来酸酐接枝聚乙烯(MAH-g-PE)复合改性的3种不同尺度的杨木纤维(PF)增强增韧再生高密度聚乙烯(RHDPE)复合材料,并对比了三种复合材料的力学性能与非等温结晶性能。结果显示,粒径为80目的协同改性PF可明显提升未改性的PF/RHDPE复合材料的拉伸强度、弯曲模量、以及冲击强度;复合材料的相对结晶度受降温速率和粒径共同作用,且前者作用较为重要;此外,Ozawa指数n将复合材料的结晶过程划分为一维以内和三维以内两个生长阶段。

关键词：再生高密度聚乙烯协同改性多尺度杨木纤维力学性能非等温结晶动力学