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Internal electric field modulation by copper vacancy concentration of cuprous sulfide nanosheets for enhanced selective CO_(2) photoreduction

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Journal of Energy Chemistry 2024年第4期91卷 324-330页

作者： Xian Shi weidong Dai Xiaoqian Li Yang Bai Qin Ren yao Lei Xing'an Dong School of Chemistry and Environmental Engineering Sichuan University of Science&EngineeringZigong 643000SichuanChina State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation School of Oil&Natural Gas EngineeringSouthwest Petroleum UniversityChengdu 610500SichuanChina Chongqing Key Laboratory of Photo-Electric Functional Materials College of Physics and Electronic EngineeringChongqing Normal UniversityChongqing 401331SichuanChina Research Center for Environmental and Energy Catalysis Institute of Fundamental and Frontier SciencesUniversity of Electronic Science and Technology of ChinaChengdu 611731SichuanChina

Although the internal electric field(IEF)of photocatalysts is acknowledged as a potent driving force for photocharge separation,modulating the IEF intensity to achieve enhanced photocatalytic performances remains a ***,cuprous sulfide nanosheets with different Cu vacancy concentration were employed to study IEF modulation and corresponding direct charge *** the samples,Cu_(1.8)S nanosheets possessed intensified IEF intensity compared with those of Cu_(2)S and Cu_(1.95)S nanosheets,suggesting that an enhanced IEF intensity could be achieved by introducing more Cu *** intensified IEF of Cu_(1.8)S nanosheets induced numerous photogenerated electrons to migrate to its surface,and the dissociative electrons were then captured by Cu vacancies,resulting in efficient charge separation *** addition,the Cu vacancies on Cu_(1.8)S nanosheets accumulated electrons as active sites to lower the energy barrier of rate-determining step of CO_(2)photoreduction,leading to the selective conversion of CO_(2)to ***,the manipulation of IEF intensity through Cu vacancy concentration regulation of cuprous sulfide photocatalysts for efficient charge separation has been discussed,providing a scientific strategy to rationally improve photocata lytic performances for solar energy conversion.

关键词： Internal electric field intensity Cuprous sulfide photocatalysts Cu vacancies Charge separation Selective CO_(2) photoreduction

单手面罩直接加压法模拟面罩通气困难的可行性研究

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皖南医学院学报 2024年第4期43卷 369-371页

作者：王斌徐凯耿梦琦徐建玲陈永权姚卫东皖南医学院第一附属医院弋矶山医院麻醉科安徽芜湖241001 无为市人民医院麻醉科安徽无为238300

目的:建立一种简单有效模拟面罩通气困难(DMV)的临床试验方法。方法:纳入无DMV指征的全麻患者40例。麻醉诱导后,分别实施普通面罩通气方法(双手VE面罩通气方法)和模拟DMV方法(单手面罩直接加压法)进行面罩通气。主要观察指标为是否成功... 详细信息

目的:建立一种简单有效模拟面罩通气困难(DMV)的临床试验方法。方法:纳入无DMV指征的全麻患者40例。麻醉诱导后,分别实施普通面罩通气方法(双手VE面罩通气方法)和模拟DMV方法(单手面罩直接加压法)进行面罩通气。主要观察指标为是否成功实施面罩通气;次要观察指标为实际潮气量、气道峰压、呼气末二氧化碳分压(P_(ET)CO_(2))。结果:35例(87.5%)患者通过单手面罩直接加压法可以成功模拟DMV。单手面罩直接加压法患者潮气量[143.5(104.8,174.3)mL]较双手VE面罩通气方法[442.0(409.3,482.8)mL]下降,气道峰压升高[31.0(27.0,37.0)cmH 2O vs.13.0(10.3,14.0)cmH 2O],P_(ET)CO_(2)降低[1.5(0,7.0)mmHg vs.32.5(30.0,35.0)mmHg](P<0.001)。结论:单手面罩直接加压法可有效模拟DMV。

关键词：面罩通气困难气道单手面罩直接加压法气道管理

Study on the Relationship between Investor Sentiment and Stock Bubble

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Study on the Relationship between Investor Sentiment and Sto...

Thylakoid engineered M2 macrophage for sonodynamic effect promoted cell therapy of early atherosclerosis

第30届中国控制与决策会议

作者： weidong yao Gang Liu School of Economics and Finance Xi’an Jiaotong University

The change of investors’ sentiment is one of the important factors which can affect the volatility of stock ***,few studies are related to stock bubble from the perspective of investor *** on behavioral finance theory,this paper builds the investor sentiment index by principal component ***,it uses the quarter panel data of listed companies of our country in 2006-2015,explores the relationship of investor sentiment and stock *** indicates:1) it finds that stock bubble is positively correlated with investor sentiment,new stock accounts,market price earning ratio,the amount of ***,the stock bubble is negative correlation with volume of market transactions,market turnover rate.2) it calculates the fundamental value of the stock by using residual income model,and finds that there are lots of bubbles among the listed companies of our *** results improve the system of behavioral finance theory,and provides some suggestions for government.

关键词： Investor Sentiment Stock Bubble Principal Component Analysis Residual Income Model

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Nano Research 2024年第4期17卷 2919-2928页

作者： Guanghao Wu Changwen Mu Qianru Zhao yao Lei Ran Cheng weidong Nie Jiamin Qu Yuping Dong Ruili Yang Haiyan Xie State Key Laboratory of Natural and Biomimetic Drugs School of Pharmaceutical SciencesChemical Biology CenterPeking UniversityBeijing 100191China School of Materials Science and Engineering Beijing Institute of TechnologyBeijing 100081China School of Life Science Beijing Institute of TechnologyBeijing 100081China School of Stomatology Peking UniversityBeijing 100081China

Atherosclerosis is the most common cause of cardiovascular diseases that contribute to the major morbidity worldwide,but still lacking of effective treatment ***,a hybrid cell is constructed for the sonodynamic effect promoted cell therapy of early atherosclerosis by fusing M2 macrophages with thylakoid(TK)*** systemic administration,the obtained TK-M2 actively accumulates in the early atherosclerotic plaques,wherein M2 macrophages relieve the cholesterol accumulation and the inflammation in the foam ***,the TK membranes decorated on the M2 macrophages exhibit both type I and type II sonodynamic effects under ultrasound(US)activation,inducing the direct apoptosis of foam *** cooperation of M2 and TK leads to significant outcome in eliminating atherosclerotic plaques without obvious side-effects,providing a new avenue for atherosclerosis treatment.

关键词： atherosclerosis thylakoid ultrasound M2 macrophage

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数控设备故障维修及使用管理经验

制造技术与机床 2011年第2期 134-135页

作者：姚卫东河北宣化工程机械股份有限公司设备动力部河北宣化075105

主要针对几台数控机床在使用过程中出现的典型故障,从故障现象、产生的原因等方面进行了分析,采取了一些有效的故障处理方法和措施。

关键词：数控设备维修

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低品位磷矿的资源化利用研究

矿业研究与开发 2022年第10期42卷 63-68页

作者：姚炜栋石林华南理工大学环境与能源学院广东广州510006 工业聚集区污染控制与生态修复教育部重点实验室广东广州510006 华南理工大学现代产业技术研究院广东中山市528400

由于低品位磷矿P_(2)O_(5)含量低,杂质含量高,研究低品位磷矿的高效利用具有重要意义。采用煅烧、浸提和酸活化新工艺制备一种复合土壤调理剂。经过煅烧、NH_(4)NO_(3)溶液浸提、过滤后,可以获得高品位磷矿。浸提产生的NH3可用稀硝酸吸... 详细信息

由于低品位磷矿P_(2)O_(5)含量低,杂质含量高,研究低品位磷矿的高效利用具有重要意义。采用煅烧、浸提和酸活化新工艺制备一种复合土壤调理剂。经过煅烧、NH_(4)NO_(3)溶液浸提、过滤后,可以获得高品位磷矿。浸提产生的NH3可用稀硝酸吸收,生成硝酸铵循环利用。通过煅烧和浸提,P_(2)O_(5)含量由10.18%提高到29.04%。酸活化过程中,磷矿与脲硫酸反应活化难溶性磷,磷活化率为96.2%。最后,在反应干燥后的产物中加入KCl,得到复合土壤调理剂。采用的煅烧、浸提和酸活化工艺为低品位磷矿的资源化利用提供了新思路。

关键词：低品位磷矿煅烧浸提脲硫酸复合土壤调理剂

Reinforcement learning based adaptive control for uncertain mechanical systems with asymptotic tracking

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Defence Technology（防务技术） 2024年第4期34卷 19-28页

作者： Xiang-long Liang Zhi-kai yao yao-wen Ge Jian-yong yao School of Mechanical Engineering Nanjing University of Science and TechnologyNanjing210094China College of Automation&College of Artificial Intelligence Nanjing University of Post and TelecommunicationNanjing210023China

This paper mainly focuses on the development of a learning-based controller for a class of uncertain mechanical systems modeled by the Euler-Lagrange *** considered system can depict the behavior of a large class of engineering systems,such as vehicular systems,robot manipulators and *** these systems are often characterized by highly nonlinear characteristics,heavy modeling uncertainties and unknown perturbations,therefore,accurate-model-based nonlinear control approaches become *** by the challenge,a reinforcement learning(RL)adaptive control methodology based on the actor-critic framework is investigated to compensate the uncertain mechanical *** approximation inaccuracies caused by RL and the exogenous unknown disturbances are circumvented via a continuous robust integral of the sign of the error(RISE)control *** from a classical RISE control law,a tanh(·)function is utilized instead of a sign(·)function to acquire a more smooth control *** developed controller requires very little prior knowledge of the dynamic model,is robust to unknown dynamics and exogenous disturbances,and can achieve asymptotic output ***,co-simulations through ADAMS and MATLAB/Simulink on a three degrees-of-freedom(3-DOF)manipulator and experiments on a real-time electromechanical servo system are performed to verify the performance of the proposed approach.

关键词： Adaptive control Reinforcement learning Uncertain mechanical systems Asymptotic tracking

Effects of Curcumin on Neuroinflammation and the Nrf2/HO-1 Pathway in Rat Brains Following Gas Explosion

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Biomedical and Environmental Sciences 2024年第8期37卷 943-947页

作者： Xinwen Dong Yaguang Su Zheng Luo Lyufei Deng Xiaofeng Han Yifang Liang Sanqiao yao weidong Wu Jia Cao Linqiang Tian Yichun Bai Wenjie Ren Health School of Public Health Xinxiang Medical UniversityXinxiang 453003HenanChina Toxicology Research Institute PLA Army Medical UniversityChongqing 400038China Institute of Trauma and Orthopaedics Xinxiang Medical UniversityXinxiang 453003HenanChina Institutes of Health Central Plains Xinxiang Medical UniversityXinxiang 453003HenanChina

Gas explosions,a major occupational hazard in China’s coal industry,endanger the lives and health of *** explosions cause a specific type of traumatic brain injury with complex mechanisms,leading to disability and death.A study by Zhao et *** magnetic resonance imaging on 49 gas explosion survivors revealed significant damage to brain regions like the hippocampus and cerebral cortex.

关键词： damage Nrf2 cerebral

Fresh-Keeping Decision and Coordination of Fresh Agricultural Product Supply Chain Considering Carbon Cap-and-Trade under Different Dominance

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Journal of Systems Science and Systems Engineering 2024年第1期33卷 30-51页

作者： Yang Yang Guanxin yao China Institute for Agricultural Equipment Industrial Development Jiangsu UniversityZhenjiang212013China Jiangsu Modern Logistics Research Base Yangzhou UniversityYangzhou225009China

In the context of low carbon,this paper discussed the impact of the carbon cap-and-trade policy on the fresh-keeping decision-making of two-echelon fresh agricultural product supply chains under different dominance,and designed cost-sharing contracts to coordinate the supply chain of fresh agricultural products dominated by suppliers and retailers *** results showed that:dominance has no effect on the fresh-keeping decision and total revenue of fresh agricultural product supply chain,but it affects the internal income distribution,and dominance does not always bring more benefits;the implementation of carbon cap-and-trade reduces the fresh-keeping decision-making of fresh agricultural products supply chain and reduces the free-rider income of followers;the role of higher carbon trading price is twofold,which not only brings about the speculation of leading enterprises,but also promotes the application of low-carbon technologies;consumers’high preference for freshness,low-cost and high-efficiency low-carbon technology are all conducive to improving the fresh-keeping efforts and benefits of the supply chain;cost-sharing contracts can coordinate the supply chain of fresh agricultural products.

关键词： Dominant power carbon cap-and-trade policy fresh agricultural product supply chain fresh-keeping decision-making