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Facile microwave approach towards high performance MoS2/graphene nanocomposite for hydrogen evolution reaction

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Science China Materials 2020年第1期63卷 62-74页

作者： Shatila Sarwar Amit Nautiyal Jonathan Cook Yifei Yuan Junhao Li Sunil Uprety Reza Shahbazian-Yassar Ruigang Wang Minseo Park Michael J.Bozack xinyu Zhang Department of Chemical Engineering Auburn UniversityAuburnAL 36849USA Department of Mechanical and Industrial Engineering University of Illinois at ChicagoChicagoIL 60607USA Chemical Sciences and Engineering Division Argonne National LaboratoryIL60439USA Department of Metallurgical and Materials Engineering University of AlabamaTuscaloosaAL 35487USA Department of Physics Auburn UniversityAuburnAL 36849USA

Low-cost, highly efficient catalysts for hydrogen evolution reaction(HER) are very important to advance energy economy based on clean hydrogen gas. Intensive studies on two-dimensional molybdenum disulfides(2 D Mo S2) have been conducted due to their remarkable catalytic ***, most of the reported syntheses are time consuming,complicated and less efficient. The present work demonstrates the production of Mo S2/graphene catalyst via an ultra-fast(60 s) microwave-initiated approach. High specific surface area and conductivity of graphene delivers a favorable conductive network for the growth of Mo S2 nanosheets, along with rapid charge transfer kinetics. As-produced Mo S2/graphene nanocomposites exhibit superior electrocatalytic activity for the HER in acidic medium, with a low onset potential of62 m V, high cathodic currents and a Tafel slope of43.3 m V/decade. Beyond excellent catalytic activity, Mo S2/graphene reveals long cycling stability with a very high cathodic current density of around 1000 m A cm^-2 at an overpotential of 250 m V. Moreover, the Mo S2/graphene-catalyst exhibits outstanding HER activities in a temperature range of 30 to 120°C with low activation energy of36.51 k J mol^-1, providing the opportunity of practical scalable processing.

关键词： microwave-initiated synthesis MoS2/graphene nanocomposite electrocatalysis hydrogen evolution reaction

Research on Fleet Deployment for Liners under Low-carbon Economy Based on Simulation Optimization Method

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Research on Fleet Deployment for Liners under Low-carbon Eco...

TNFR2 is a potent prognostic biomarker for post-transplant lung metastasis in patients with hepatocellular carcinoma

第30届中国控制与决策会议

作者： Shaozheng Yu Dongshi Sun xinyu Wang Yaxin Wang Dalian Neusoft University of Information

With the global trend of environmental protection and emission reduction, it is very necessary for container liner corporation to consider carbon emissions in fleet deployment for liners. In this paper, we discuss the problem of fleet deployment for liners under low-carbon economy. With the target of maximizing profit of the fleet and the minimizing amount of carbon emissions, we establish the simulation optimization model of fleet deployment for liners and use the tabu search algorithm to obtain a reasonable fleet deployment scheme. The results show that the model and the method proposed in this paper can effectively balance and optimize the targets of operating profit and carbon emission, and the decision result is more in line with the requirements of the decision makers. Compared with the traditional mathematical model, this model and method can consider more uncertainties, which makes the fleet deployment scheme easier to be applied in practice.

关键词： low-carbon economy fleet deployment simulation optimization tabu search

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Chinese Journal of Cancer Research 2023年第1期35卷 66-80页

作者： Huigang Li Zuyuan Lin Jianyong Zhuo Modan Yang Wei Shen Zhihang Hu Yichen Ding Hao Chen Chiyu He xinyu Yang Siyi Dong Xuyong Wei Beicheng Sun Shusen Zheng Ren Lang Di Lu Xiao Xu Zhejiang University School of Medicine Hangzhou 310058China Key Laboratory of Integrated Oncology and Intelligent Medicine of Zhejiang Province Department of Hepatobiliary and Pancreatic SurgeryAffiliated Hangzhou First People's HospitalZhejiang University School of MedicineHangzhou 310006China The Institute for Organ Repair and Regenerative Medicine of Hangzhou Hangzhou 310006China Institute of Organ Transplantation Zhejiang UniversityHangzhou 310003China National Center for Healthcare Quality Management in Liver Transplant Hangzhou 310003China Department of Hepatobiliary Surgery the Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjing 210008China Department of Hepatobiliary and Pancreatic Surgery the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Hepatobiliary and Pancreatic Surgery Shulan(Hangzhou)HospitalHangzhou 311112China NHC Key Laboratory of Combined Multi-organ Transplantation Hangzhou 31003China Department of Hepatobiliary Surgery Beijing Chaoyang Hospital Affiliated to Capital Medical UniversityBeijing 100020China

Objective:Lung metastasis is a common and fatal complication of liver transplantation for hepatocellular carcinoma(HCC).The precise prediction of post-transplant lung metastasis in the early phase is of great ***:The mRNA profiles of primary and paired lung metastatic lesions were analyzed to determine key signaling *** enrolled 241 HCC patients who underwent liver transplantation from three *** microarrays were used to evaluate the prognostic capacity of tumor necrosis factor(TNF),tumor necrosis factor receptor 1(TNFR1),and TNFR2,particularly for post-transplant lung ***:Comparison of primary and lung metastatic lesions revealed that the TNF-dependent signaling pathway was related to lung metastasis of *** expression of TNF was degraded in comparison to that in para-tumor tissues(Pzhou criteria,age,and hepatitis B surface antigen were independent risk factors for post-transplant lung metastasis,and a novel nomogram was established *** nomogram achieved excellent prognostic efficiency(area under time-dependent receiver operating characteristic=0.755,concordance-index=0.779)and was superior to conventional models,such as the Milan ***:TNFR2 is a potent prognostic biomarker for predicting post-transplant lung metastasis in patients with HCC.A nomogram incorporating TNFR2 deserves to be a helpful prognostic tool in liver transplantatio

关键词： Lung metastasis hepatocellular carcinoma liver transplantation nomogram

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稻壳高温热解条件对焦结构演化的影响

煤炭学报 2023年第6期48卷 2397-2409页

作者：王鑫雨孙健超徐世明陶继业余波翟明周怀春中国矿业大学低碳能源与动力工程学院江苏徐州221116 哈尔滨工业大学能源科学与工程学院黑龙江哈尔滨150001 华能营口热电有限责任公司辽宁营口115004 中国华能集团有限公司北京100031

生物质焦利用过程中碳的转化水平决定后续利用的总体效率,而生物质焦的转化率一定程度上取决于生物质的理化结构。为探究稻壳高温快速热解过程中焦结构的演变,设计并搭建了稻壳高温快速热解系统。通过对稻壳热解停留时间和温度进行精确... 详细信息

生物质焦利用过程中碳的转化水平决定后续利用的总体效率,而生物质焦的转化率一定程度上取决于生物质的理化结构。为探究稻壳高温快速热解过程中焦结构的演变,设计并搭建了稻壳高温快速热解系统。通过对稻壳热解停留时间和温度进行精确的控制,精确控制反应进程。以扫描电子显微镜、拉曼光谱、比表面积分析、傅里叶红外光谱等测量手段对所得稻壳焦的物理化学结构进行了表征。研究不同热解温度和停留时间下稻壳焦的产率、孔隙的种类与发展、化学官能团和碳结构的变化。结果表明,热解温度越高,停留时间越长,生物质焦产率越低,焦表面碎裂越明显,孔隙结构越发达。在热解温度为1300℃、停留13 s时,稻壳焦比表面积最大为141.17 m^(2)/g,孔径主要分布在2~10 nm,表面出现明显碎裂痕迹。热解温度升高和停留时间延长,使得稻壳焦的化学结构变得越来越脱氧,碳结构高度有序化,稻壳焦中具有6个及以上稠合苯环的芳环浓度增加。高温对稻壳焦中C—O键、—OH破坏明显,导致支链和桥键断裂,含氧官能团释放和碳骨架石墨化。表面碳元素主要是以C—C/C—H为主,停留时间5 s时含量从900℃的63.86%增加到1300℃的68.27%。而C—H、C—O、C=O和COO—含量均有不同程度的降低。表面氧元素主要以COO和COOH为主。随着热解温度升高,稻壳焦中苯环数量逐渐减少,芳香环平均数增加,表面亚甲基数量减少,碳活性降低。总结稻壳焦结构演化规律将为优化热解条件、提高热解效率及后续稻壳焦燃烧和气化利用提供参考。

关键词：稻壳高温热解焦结构孔隙结构官能团结构

Bio-inspired Multi-agent Model and Optimization Strategy for Collaborative Aerial Transport

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Bio-inspired Multi-agent Model and Optimization Strategy for...

2021中国智能自动化大会(CIAC2021)

作者： Kangyao Huang Jingyu Chen John Oyekan xinyu Zhang Tsinghua University School of Vehicle and Mobility Department of Automatic Control and Systems Engineering The University of Sheffield

Collaboration between robots provides solutions for transporting more complex and heavier loads. In this work, inspired by the ant colony foraging and transport, we put forward two collaborative models, Coupled-Carriers and Navigator-Carrier, for aerial cooperative transport. To achieve this, a linear quadratic regulator(LQR) is applied to optimize the performance. The results show the task of dual-drone transport of a bar load is successfully accomplished.

关键词： Cooperative transport Swarm intelligence Swarm robotics Multi-agent system Optimal control

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以休闲及旅游为导向的城市河流景观营造初探

装饰 2015年第4期 124-125页

作者：王新宇上海师范大学

我国进入"全民休闲"时代后,旅游和休闲的目的地将逐渐转向城市滨水景观区。作为生态敏感区域,城市的滨水景观区在建设上不仅要有正确的景观生态学原理做指导,同时也要有着眼于休闲旅游的河流景观设计方法。本文结合河流景观营造实例,从... 详细信息

我国进入"全民休闲"时代后,旅游和休闲的目的地将逐渐转向城市滨水景观区。作为生态敏感区域,城市的滨水景观区在建设上不仅要有正确的景观生态学原理做指导,同时也要有着眼于休闲旅游的河流景观设计方法。本文结合河流景观营造实例,从河流景观为休闲旅游服务的视角出发,探索以休闲及旅游为目的的河流景观营造方法。

关键词：滨水区河流景观休闲旅游

紫外法、气相法、二氧化碳法检测大曲发酵力的方法对比

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酿酒 2024年第2期51卷 122-126页

作者：李小杰吕志远张梦梦刘玉涛缪坤辰崔新莹胥鑫钰王文洁济南趵突泉酿酒有限责任公司山东省济南市250115

大曲发酵力是大曲将粮食转化成乙醇的关键,大曲发酵力的大小对于评价一种大曲的好坏具有重要意义。现在普遍用的是二氧化碳失重法测定大曲发酵力,虽操作简单,但误差较大,且气体来源于多种微生物的有氧呼吸作用和发酵过程,而乙醇发酵是... 详细信息

大曲发酵力是大曲将粮食转化成乙醇的关键,大曲发酵力的大小对于评价一种大曲的好坏具有重要意义。现在普遍用的是二氧化碳失重法测定大曲发酵力,虽操作简单,但误差较大,且气体来源于多种微生物的有氧呼吸作用和发酵过程,而乙醇发酵是酵母菌无氧呼吸作用。根据发酵原理,通过检测大曲发酵液中的乙醇含量来直接检测大曲发酵力。发酵液中乙醇含量比较低,直接检测比较困难,选择紫外法和气相法检测发酵液中的乙醇含量,用乙醇含量直接表示大曲发酵力。紫外法和气相法这两种方法经过与二氧化碳法比较,发现紫外法和气相法检测大曲发酵力数据更准确,方法更科学。

关键词：大曲发酵力二氧化碳失重法紫外法气相法

健全因地制宜发展新质生产力体制机制推动中国式现代化

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工业技术经济 2024年第8期43卷 3-25页

作者：纪玉山苏美文吴勇民于吉鑫江中蛟代栓平刘元胜孙赫泽孙浩进荣欣宇陈爱雪黄晓野高一兰吉林大学经济学院吉林大学中国国有经济研究中心长春师范大学经济管理学院吉林大学知识经济研究中心吉林大学商学与管理学院吉林大学数量经济研究中心国信证券投资银行事业部上海银行深圳分行审计部哈尔滨工业大学(深圳)马克思主义学院哈尔滨工业大学(深圳)二十一世纪中国研究中心哈尔滨工业大学马克思主义学院黑龙江省社会科学院经济研究所内蒙古民族大学经济学院三亚学院管理学院三亚学院盛宝金融科技商学院三亚学院

党的二十届三中全会决议明确指出:“要健全因地制宜发展新质生产力体制机制”,这对于推动中国式现代化具有重大意义。习近平总书记创造性提出“因地制宜发展新质生产力”,这是一项重大理论和实践创新,将为我国高质量发展注入全新动力。... 详细信息

党的二十届三中全会决议明确指出:“要健全因地制宜发展新质生产力体制机制”,这对于推动中国式现代化具有重大意义。习近平总书记创造性提出“因地制宜发展新质生产力”,这是一项重大理论和实践创新,将为我国高质量发展注入全新动力。为了深入学习贯彻党的二十届三中全会精神,加快形成同新质生产力更相适应的生产关系,健全因地制宜发展新质生产力体制机制,完善战略性产业发展政策和治理体系,建立未来产业投入增长机制,完善促进数字经济和智能经济发展政策体系,促进耐心资本和各类先进生产要素向发展新质生产力集聚,围绕“健全发展新质生产力体制机制推动中国式现代化”这个新时代经济发展的重要课题,本刊邀请国内著名专家、学者,撰写一组笔谈文章,以飨读者。

关键词：因地制宜新质生产力体制机制中国式现代化生成式人工智能耐心资本新能源战略绿色生产力未来产业独角兽企业可持续发展改革红利

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天主教视野中的胚胎生命浅析

宗教学研究 2006年第2期 208-212页

作者：程新宇华中科技大学哲学系

圣经和教会官方都没有断定胚胎是人,但都要求将胚胎象人一样对待;天主教内学者们在胚胎何时是人这个问题上观点并不一致,理由各异。天主教视阈中要求尊重胚胎的理由也许不能为世俗学者所接受,因为其话语体系、理论基础和问题视角等方面... 详细信息

圣经和教会官方都没有断定胚胎是人,但都要求将胚胎象人一样对待;天主教内学者们在胚胎何时是人这个问题上观点并不一致,理由各异。天主教视阈中要求尊重胚胎的理由也许不能为世俗学者所接受,因为其话语体系、理论基础和问题视角等方面存在很大不同,但是二者的对话是必要而且可能的。

关键词：天主教胚胎人