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Carbon Abatement Cost-Sharing Strategy for Electric Power Sector Based on Incentive and Subsidy Mechanisms

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Energy Engineering 2024年第10期121卷 2907-2935页

作者： Hui wang wen wang wenhui zhao College of Economics and Management Shanghai University of Electric PowerShanghai200090China

The green and low carbon transition and development of the electricity industry is the most crucial task in realizing the“dual-carbon target”,and it is urgent to explore the incentive and subsidy mechanism to promote green electricity consumption and the cost-sharing strategy of carbon reduction,to alleviate the pressure of carbon abatement cost of each subject of the electricity supply *** this background,this paper takes into account the low-carbon subsidies provided by the government and the incentive subsidies for users,and studies the optimal decision-making of each subject in the electricity supply chain,so that each of them can obtain the optimal profit and achieve carbon emission reduction at the same ***,taking into account the direct power purchase mode of large users and the electricity-selling companies emerging after the reform of the power sales side,we have established a cooperative mechanism for sharing the cost of carbon emission reduction in the electricity supply chain and clarified the relationship between the supply and demand of electricity among the main ***,considering government low-carbon subsidies and user incentive subsidies,the optimal decisionmaking model is established under two scenarios of decentralized and centralized cooperative games in the supply chain,respectively,with the objective of maximizing profits and carbon reduction *** for the optimal proportion of carbon abatement costs shared by each participant in the electricity supply chain in achieving game ***,we analyze the role of the government’s low-carbon subsidies,users’incentive subsidies,and other factors on the profit and carbon reduction effect of the electricity industry through the example analysis and further analyze the impact of carbon abatement cost-sharing measures to provide recommendations for the electricity industry to realize low-carbon abatement and make decisions.

关键词： Electricity supply chain incentive subsidy mechanisms carbon abatement cost-sharing green electricity consumption

Influence factors and variation characteristics of water vapor absorption by soil in semi-arid region

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Science China Earth Sciences 2016年第11期59卷 2240-2251页

作者： ZHANG Qiang wang Sheng wang ShanShan zhao YingDong wen XiaoMei Key Laboratory of Arid Climatic Change and Reducing Disaster of Gansu Province Key Open Laboratory of Arid Climate Change and Disaster Reduction of CMA Institute of Arid Meteorology Lanzhou 730020 China Gansu Meteorological Bureau Lanzhou 730020 China Key Laboratory for Semi-Arid Climate Change of the Ministry of Education College of Atmospheric Sciences Lanzhou University Lanzhou 730000 China Hydrology and Water Resources Bureau of Gansu Province Lanzhou 730000 China Shanghai Meteorological Service Shanghai 201901 China

The adsorption of water vapor by soil is one of the crucial contributors to non-rainfall water on land surface, particularly over semi-arid regions where its contribution can be equivalent to precipitation and can have a major impact on dry agriculture and the ecological environment in these regions. However, due to difficulties in the observation of the adsorption of water vapor,research in this area is limited. This study focused on establishing a method for estimating the quantitative observation of soil water vapor adsorption(WVA), and exploring the effects of meteorological elements(e.g., wind, temperature, and humidity) and soil environmental elements(e.g., soil temperature, soil moisture, and the available energy of soil) on WVA by soil over the semi-arid region, Dingxi, by combining use of the L-G large-scale weighing lysimeter and meteorological observation. In addition, this study also analyzed the diurnal and annual variations of WVA amount, frequency, and intensity by soil, how they changed with weather conditions, and the contribution of WVA by soil to the land surface water budget. Results showed that WVA by soil was co-affected by various meteorological and soil environmental elements, which were more likely to occur under conditions of relative humidity of 6.50% and the diurnal variation of relative humidity was large, inversion humidity, wind velocity of 3.4 m/s,lower soil water content, low surface temperature and slightly unstable atmospheric conditions. There was a negative feedback loop between soil moisture and the adsorption of water vapor, and, moreover, the diurnal and annual variations of WVA amount and frequency were evident—WVA by soil mainly occurred in the afternoon, and the annual peak appeared in December and the valley in June, with obvious regional characteristics. Furthermore, the contribution of WVA by soil to the land surface water budget obviously exceeded that of precipitation in the dry season.

关键词： Semi-arid region Water vapor adsorption Micro-meteorological elements Soil environment Water budget

Vortex identification methods in marine hydrodynamics

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Journal of Hydrodynamics 2020年第2期32卷 286-295页

作者： Wei-wen zhao Jian-hua wang De-cheng Wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringState Key Laboratory of Ocean EngineeringShanghai Jiao Tong UniversityShanghai200240China

In this paper,several commonly used vortex identification methods for marine hydrodynamics are *** order to extract and analyse the vortical structures in marine hydrodynamics,the Q,λ2-criterion and modified normalized Liutex/RortexΩR method are utilized for vortex identification for propeller open water test,ship drag test,ship propeller-rudder interaction,VIV of a marine riser and VIM of a Spar *** limitation of Q andλ2-criterion is *** Liutex/RortexΩR method is promising for convenient and accurate vortex identification and ***,care should be taken when choosing the small parameter b0 forΩ*** proposed recommended values of b0 for marine hydrodynamic problems.

关键词： Marine hydrodynamics vortex identification Omega Liutex/Rortex naoe-FOAM-SJTU solver OpenFOAM

Optimization of the roll motion of box-shaped hull section with anti-rolling sloshing tanks and fins in beam waves

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Journal of Hydrodynamics 2021年第4期33卷 688-697页

作者： Xin-wang Liu Wei-wen zhao De-cheng Wan Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Ocean College Zhejiang UniversityZhoushan316021China

With the development of ocean engineering and demand for safety of the ship and offshore structures, the transportation and storage of liquid have become an important issue nowadays. Furthermore, in order to improve the hydrodynamic performances of the ship and offshore structures, the anti-rolling liquid tanks are often taken into consideration. The internal-external coupling flow effect is vital for the ship and liquid tank designs, especially when the external wave frequency is close to the natural frequency of liquid tanks with a certain filling ratio, large amplitude motions may occur, which is dangerous to some extent. In this paper, the simulation-based-design method is introduced at first, and the verification of the numerical calculation of internal-external coupling flow with liquid tanks is done then. Finally, the filling ratio of the anti-rolling liquid tank and the installation angle of the anti-rolling fins are optimized to reduce the roll motion amplitude of the hull section to the greatest extent under the combined action of the two anti-rolling devices. Optimization results show that the roll motion amplitude of box-shaped hull section can be successfully reduced by reasonably designing the two anti-rolling devices, which can be a reference to the future design of the fishing ship and other ships with anti-rolling devices.

关键词： Tank sloshing anti-rolling fin ship motion in waves ship hydrodynamic optimization

View planning in robot active vision: A survey of systems,algorithms, and applications

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Computational Visual Media 2020年第3期6卷 225-245页

作者： Rui Zeng Yuhui wen wang zhao Yong-Jin Liu BNRist Department of Computer Science and TechnologyTsinghua UniversityBeijingChina

Rapid development of artificial intelligence motivates researchers to expand the capabilities of intelligent and autonomous robots. In many robotic applications, robots are required to make planning decisions based on perceptual information to achieve diverse goals in an efficient and effective way. The planning problem has been investigated in active robot vision, in which a robot analyzes its environment and its own state in order to move sensors to obtain more useful information under certain constraints. View planning,which aims to find the best view sequence for a sensor,is one of the most challenging issues in active robot vision. The quality and efficiency of view planning are critical for many robot systems and are influenced by the nature of their tasks, hardware conditions, scanning states, and planning strategies. In this paper, wefirst summarize some basic concepts of active robot vision, and then review representative work on systems,algorithms and applications from four perspectives:object reconstruction, scene reconstruction, object recognition, and pose ***, some potential directions are outlined for future work.

关键词： robot hardware planning

Effect of Age and Sex on Stroke Mortality of Young and Middle-aged Adults in China,2002–2019,and Predictions to 2030

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Biomedical and Environmental Sciences 2023年第4期36卷 305-312页

作者： ZHAI Yi SI Xiang wang wen Zhi zhao wen Hua China National Clinical Research Center for Neurological Diseases Beijing Tiantan HospitalCapital Medical UniversityBeijing 100070China Division of Non-communicable Disease and Ageing Health Management Chinese Center for Disease Control and PreventionBeijing 102206China Beijing Neurosurgical Institute Capital Medical UniversityBeijing 100070China National Institute for Nutrition and Health Chinese Center for Disease Control and PreventionBeijing 100050China

Objective This study aimed to examine the trends in stroke mortality among young and middle-aged adults in *** Data were obtained from the China national vital registration *** changes in mortality were assessed by Joinpoint ***-period-cohort analysis was used to explain the reasons for the *** mortality and counts were predicted by the Bayesian age-period-cohort *** Between 2002 and 2019,a total of 6,253,951 stroke mortality in young and middle-aged adults were *** age-adjusted mortality rates(AAMRs)of women showed a downward *** annual percent changes(APC)were-3.5%(-5.2%,-1.7%)for urban women and-2.8%(-3.7%,-1.9%)for rural *** contrast,the AAMRs per 100,000 for rural men aged 25–44 years continued to rise from 9.40 to *** AAMRS for urban men aged 25–44 years and urban and rural men aged 45–64years did not change *** 2020 and 2030,the projected stroke deaths are 1,423,584 in men and 401,712 in *** Significant sex and age disparities in the trends of stroke mortality among young and middle-aged adults were identified in *** health policy measures are needed to address the burden of stroke in the young generation,especially for rural men,with a focus on the prevention and management of high risk factors.

关键词： Stroke Mortality Young and middle-aged Joinpoint regression Age-period-cohort analysis

Applications of Liutex-based force field models for cavitation simulation

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Journal of Hydrodynamics 2021年第3期33卷 488-493页

作者： Min-sheng zhao Wei-wen zhao De-cheng Wan Yi-qian wang Computational Marine Hydrodynamics Lab(CMHL) School of Naval ArchitectureOcean and Civil EngineeringShanghai Jiao Tong UniversityShanghai200240China Ocean College Zhejiang UniversityZhoushan316021China School of Mathematical Science Soochow UniversitySuzhou215006China

When studying the flow dynamics and the characteristics of fluid motion,vortex structure with their interactions is the key *** the present work,a vortex control method is investigated based on the vortex identification system of *** numerical study is carried out in OpenFOAM by directly adding a source term to the Navier-Stokes equations,which is called the centripetal force model in Liutex method.A 2-D test case is examined to justify the proposed method in cavitating flow around Clark-Y hydrofoil,the simulation results show that the improved Liutex solver is *** of controlling the rotation strength of vortices are able to change the flow field and suppress the *** applicability of vortex-based control method in 3-D flow field is also *** results show that cavitation surrounded by particular vortex can be effectively influenced.

关键词： Liutex force model cavitation vortex control

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米索前列醇引产在早期重度妊高征中的应用

实用妇产科杂志 2000年第3期16卷 145-146页

作者：杨孜叶蓉华赵文秋王楠北京医科大学第三医院北京100083

目的 :观察米索前列醇用于早期发生的重度妊高征终止妊娠的安全性和可行性。方法 :选择伴有各种严重并发症且发病较早 ,需要终止妊娠的重度妊高征 8例 (孕周 2 6～ 32 + 6 ) ,同期正常足月需引产者 13例为对照组。米索前列醇5 0μg阴道... 详细信息

目的 :观察米索前列醇用于早期发生的重度妊高征终止妊娠的安全性和可行性。方法 :选择伴有各种严重并发症且发病较早 ,需要终止妊娠的重度妊高征 8例 (孕周 2 6～ 32 + 6 ) ,同期正常足月需引产者 13例为对照组。米索前列醇5 0μg阴道给药 ,依据宫缩情况 3～ 4h重复给药。监测血压、心率、体温、诱发宫缩时间、用药至临产时间及产程。结果 :两组用药前后血压、心率、体温变化均无统计学差异 (P>0 .0 5 ) ,两组均获引产成功 ,妊高征组用药总量及给药次数明显高于对照组 (P<0 .0 0 1) ,但临床经过平稳 ,无副反应。结论 :米索前列醇用于早期重度妊高征的终止妊娠 ,尤其是对不期待活产的病例。

关键词：米索前列醇药物引产早期妊娠高血压综合征

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飞行员新型通风背心散热性能评价

航天医学与医学工程 2018年第1期31卷 26-31页

作者：孙晓艳薛利豪温冬青顾昭王桂友贾晨曦刘晓鹏张岩空军航空医学研究所北京100142

目的设计一款通风背心,降低战斗机飞行员的热应激水平。方法新型背心具有以下特征:扁平的通风管,分支管纵向分布且有高强度材料支撑,通风管里侧有小孔可吹出气体。并设计了一个热舒适性实验对人体生理参数(心率、温度)进行了测量。结果... 详细信息

目的设计一款通风背心,降低战斗机飞行员的热应激水平。方法新型背心具有以下特征:扁平的通风管,分支管纵向分布且有高强度材料支撑,通风管里侧有小孔可吹出气体。并设计了一个热舒适性实验对人体生理参数(心率、温度)进行了测量。结果通风背心对躯干的降温效果非常明显,对降低核心体温也能起到一定的作用。结论该设计可以提高飞行员在高温环境下的持续作战能力,并提高其关键部位的热舒适性。

关键词：高温飞行员通风背心热舒适性核心温度