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Optimized scheduling of integrated energy systems for low carbon economy considering carbon transaction costs

Global Energy Interconnection 2024年第4期7卷 377-390页

作者： Chao liu Weiru Wang Jing Li xinyuan liu Yongning Chi China Electric Power Research Institute Beijing 100192P.R.China State Grid Shanxi Electric Power Research Institute Taiyuan 030001P.R.China

With the introduction of the“dual carbon”goal and the continuous promotion of low-carbon development,the integrated energy system(IES)has gradually become an effective way to save energy and reduce *** study proposes a low-carbon economic optimization scheduling model for an IES that considers carbon trading *** the goal of minimizing the total operating cost of the IES and considering the transferable and curtailable characteristics of the electric and thermal flexible loads,an optimal scheduling model of the IES that considers the cost of carbon trading and flexible loads on the user side was *** role of flexible loads in improving the economy of an energy system was investigated using examples,and the rationality and effectiveness of the study were verified through a comparative analysis of different *** results showed that the total cost of the system in different scenarios was reduced by 18.04%,9.1%,3.35%,and 7.03%,respectively,whereas the total carbon emissions of the system were reduced by 65.28%,20.63%,3.85%,and 18.03%,respectively,when the carbon trading cost and demand-side flexible electric and thermal load responses were considered *** electrical and thermal loads did not have the same impact on the system *** the analyzed case,the total cost and carbon emissions of the system when only the flexible electrical load response was considered were lower than those when only the flexible thermal load response was taken into *** have an excess of carbon trading credits and can profit from selling them,whereas other devices have an excess of carbon trading and need to buy carbon credits.

关键词： Demand response Combined cooling Heating and power system Carbon transaction costs Flexible electric and thermal loads Optimal scheduling

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Examining the characteristics between time and distance gaps of secondary crashes

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Transportation Safety and Environment 2024年第1期6卷 116-131页

作者： xinyuan liu Jinjun Tang Chen Yuan Fan Gao Xizhi Ding Smart Transport Key Laboratory of Hunan Province School of Transport and Transportation EngineeringCentral South UniversityChangsha 410075China Department of Computer Science City University of Hong Kong999077Kowloon TongHong KongChina Department of Geography and Resource Management The Chinese University of Hong KongShatinNT 999077Hong KongChina

Understanding the characteristics of time and distance gaps between the primary(PC)and secondary crashes(SC)is crucial for preventing SC ccurrences and improving road *** previous studies have tried to analyse the variation of gaps,there is limited evidence in quantifying the relationships between different gaps and various influential *** study proposed a two-layer stacking framework to discuss the time and distance ***,the framework took random forests(RF),gradient boosting decision tree(GBDT)and eXtreme gradient boosting as the base classifiers in the first layer and applied logistic regression(LR)as a combiner in the second *** this basis,the local interpretable model-agnostic explanations(LIME)technology was used to interpret the output of the stacking model from both local and global *** SC dentification and feature selection,346 SCs and 22 crash-related factors were collected from California interstate *** results showed that the stacking model outperformed base models evaluated by accuracy,precision,and recall *** explanations based on LIME suggest that collision type,distance,speed and volume are the critical features that affect the time and distance *** volume can prolong queue length and increase the distance gap from the SCs to *** collision types,peak periods,workday,truck involved and tow away likely induce a long-distance ***,there is a shorter distance gap when secondary roads run in the same direction and are close to the primary *** speed is a significant factor resulting in a long-time gap,while the higher speed is correlated with a short-time *** results are expected to provide insights into how contributory features affect the time and distance gaps and help decision-makers develop accurate decisions to prevent SCs.

关键词： secondary crash(SC) time and distance gaps stacking framework local interpretable model-agnostic explanations(LIME)

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Effect of phosphorus content on interfacial heat transfer and film deposition behavior during the high-temperature simulation of strip casting

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International Journal of Minerals,Metallurgy and Materials 2024年第5期31卷 1016-1025页

作者： Wanlin Wang Cheng Lu Liang Hao Jie Zeng Lejun Zhou xinyuan liu Xia Li Chenyang Zhu School of Metallurgy and Environment Central South UniversityChangsha 410083China National Center for International Research of Clean Metallurgy Central South UniversityChangsha 410083China Institute of Research of Iron and Steel ShasteelJiangsu ProvinceZhangjiagang 215625China

The interfacial wettability and heat transfer behavior are crucial in the strip casting of high phosphorus-containing steel.A hightemperature simulation of strip casting was conducted using the droplet solidification technique with the aims to reveal the effects of phosphorus content on interfacial wettability,deposited film,and interfacial heat transfer *** showed that when the phosphorus content increased from 0.014wt%to 0.406wt%,the mushy zone enlarged,the complete solidification temperature delayed from1518.3 to 1459.4℃,the final contact angle decreased from 118.4°to 102.8°,indicating improved interfacial contact,and the maximum heat flux increased from 6.9 to 9.2 MW/*** the phosphorus content from 0.081wt%to 0.406wt%also accelerated the film deposition rate from 1.57 to 1.73μm per test,resulting in a thickened naturally deposited film with increased thermal resistance that advanced the transition point of heat transfer from the fifth experiment to the third experiment.

关键词： strip casting interfacial heat transfer interfacial wettability naturally deposited film phosphorus content

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Unraveling the coordination behavior and transformation mechanism of Cr^(3+) in Fe–Cr redox flow battery electrolytes

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Materials Reports(Energy) 2024年第2期4卷 54-63页

作者： Xiaojun Zhao Xinwei Niu xinyuan liu Chongchong Wu Xinyu Duan Zhiqi Ma Yan Xu Hao Li Weijie Yang Department of Electrical Engineering North China Electric Power UniversityBaoding071003PR China Department of Energy Power and Mechanical Engineering North China Electric Power UniversityBaoding071003PR China CNOOC Institute of Chemicals&Advanced Materials Beijing102200PR China Shanghai LongVault Energy Technology Co. Ltd.Shanghai201615PR China Advanced Institute for Materials Research(WPI-AIMR) Tohoku UniversitySendai980-8577Japan

Currently,the iron chromium redox flow battery(ICRFB)has become a research hotspot in the energy storage field owing to its low cost and ***,the activity of electrolyte is still ambiguous due to its complicated solution ***,we performed a pioneering investigation on the coordination behavior and transformation mechanism of Cr^(3+)in electrolyte and prediction of impurity ions impact through quantum chemistry *** on the structure and symmetry of electrostatic potential distribution,the activity of different Cr^(3+)complex ions is confirmed as[Cr(H2O)5Cl]^(2+)>[Cr(H2O)4Cl2]+>[Cr(H2O)6]^(3+).The transformation mechanism between[Cr(H2O)6]^(3+)and[Cr(H2O)5Cl]^(2+)is *** find the metal impurity ions(especially Mg^(2+))can exacerbate the electrolyte deactivation by reducing the transformation energy barrier from[Cr(H2O)5Cl]^(2+)(24.38 kcal mol^(−1))to[Cr(H2O)6]^(3+)(16.23 kcal mol^(−1)).The solvent radial distribution and mean square displacement in different solvent environments are discussed and we conclude that the coordination configuration limits the diffusivity of Cr^(3+).This work provides new insights into the activity of electrolyte,laying a fundamental sense for the electrolyte in ICRFB.

关键词： Fe-Cr redox flow battery Coordination Electrolyte Quantum chemistry computation

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Traditional Chinese medicine Pien-Tze-Huang ameliorates LPS-induced sepsis through bile acid-mediated activation of TGR5-STAT3-A20 signalling

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Journal of Pharmaceutical Analysis 2024年第4期14卷 601-614页

作者： Bei Li Yong Zhang xinyuan liu Ziyang Zhang Shuqing Zhuang Xiaoli Zhong Wenbo Chen Yilin Hong Pingli Mo Shuhai Lin Shicong Wang Chundong Yu State Key Laboratory of Cellular Stress Biology School of Life SciencesXiamen UniversityXiamen361102China Fujian Pien Tze Huang Enterprise Key Laboratory of Natural Medicine Research and Development ZhangzhouFujian363000China Xiang'an Hospital of Xiamen University School of MedicineXiamen UniversityXiamen361005China Department of Cardiology Xiamen Key Laboratory of Cardiac ElectrophysiologyXiamen Institute of Cardiovascular DiseasesThe First Affiliated Hospital of Xiamen UniversitySchool of MedicineXiamen UniversityXiamen361003China

Pien Tze Huang(PZH),a class-1 nationally protected traditional Chinese medicine(TCM),has been used to treat liver diseases such as hepatitis;however,the effect of PZH on the progression of sepsis is ***,we reported that PZH attenuated lipopolysaccharide(LPS)-induced sepsis in mice and reduced LPS-induced production of proinflammatory cytokines in macrophages by inhibiting the activation of mitogen-activated protein kinase(MAPK)and nuclear factor-kappa B(NF-κB)***,PZH stimulated signal transducer and activator of transcription 3(STAT3)phosphorylation to induce the expression of A20,which could inhibit the activation of NF-κB and MAPK *** of the bile acid(BA)receptor G protein-coupled bile acid receptor 1(TGR5)in macrophages abolished the effects of PZH on STAT3 phosphorylation and A20 induction,as well as the LPS-induced inflammatory response,suggesting that BAs in PZH may mediate its anti-inflammatory effects by activating ***,deprivation of BAs in PZH by cholestyramine resin reduced the effects of PZH on the expression of phosphorylated-STAT3 and A20,the activation of NF-κB and MAPK signalling,and the production of proinflammatory cytokines,whereas the addition of BAs to cholestyramine resin-treated PZH partially restored the inhibitory effects on the production of proinflammatory ***,our study identifies BAs as the effective components in PZH that activate TGR5-STAT3-A20 signalling to ameliorate LPS-induced sepsis.

关键词： Pien Tze Huang Bile acids Sepsis Inflammation TGR5 STAT3-A20 signalling

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Sedimentary Facies Characteristics of Chang 6 and Chang 7 Members of Yanchang Formation in Heshui Area, China

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Journal of Geoscience and Environment Protection 2024年第9期12卷 182-197页

作者： xinyuan liu Shunzhi Yang Shunchao Gou Sen Chang School of Earth Science and Engineering Xian Shiyou University Xian China Shaanxi Key Laboratory of Petroleum Accumulation Geology Xian Shiyou University Xian China Sulige Gasfield Development Corporation PetroChina Changqing Oilfield Company Xian China

This paper takes Chang 6 and Chang 7 of Yanchang Formation in Heshui area of China as the research object. This study first divides the strata of Chang 6 and Chang 7. According to the review data, significant geological activities have caused a large settlement of the strata in this area. During the Chang 6 period, a lacustrine basin sedimentary system developed, reaching its peak in the Chang 7 period. The Chang 6 and Chang 7 members primarily feature deep-water gravity flow sedimentary systems, which can be categorized into three subfacies: outer fan, middle fan, and inner fan. These systems also exhibit turbidite fan sedimentary patterns, ranging from deep lake to semi-deep lake facies. By examining these sedimentary models, we can identify different types of turbidite deposits. Understanding the process of gravity flow deposition and the evolution of ancient lakes is crucial for guiding oil and gas exploration and conducting paleogeographic research.

关键词： Stratigraphic Division Gravity Flow Deposition Turbidity Fans Oil and Gas Exploration

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青光眼视神经保护药物的研究进展

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中华眼科杂志 2024年第10期60卷 860-869页

作者：刘心源孙兴怀复旦大学附属眼耳鼻喉科医院眼科国家卫生健康委员会/中国医学科学院近视眼及相关眼病重点实验室上海

青光眼是一种以视网膜神经节细胞进行性丢失为特点的退行性病变, 导致不可逆性视野缺损、低视力和盲。病理性眼压升高虽然是青光眼的主要危险因素, 但是开发除降低眼压外, 可预防和阻止视网膜神经节细胞损伤和凋亡的治疗方法至关重要。... 详细信息

青光眼是一种以视网膜神经节细胞进行性丢失为特点的退行性病变, 导致不可逆性视野缺损、低视力和盲。病理性眼压升高虽然是青光眼的主要危险因素, 但是开发除降低眼压外, 可预防和阻止视网膜神经节细胞损伤和凋亡的治疗方法至关重要。不同类型青光眼的初始治疗方法多数为药物治疗。本文基于国内外最新研究结果, 针对已应用于临床或处于临床前研究中的具有视神经直接保护作用的药物进行总结和分析, 为青光眼临床治疗工作提供参考信息。

关键词：青光眼神经保护药药物疗法

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RM-CSTV:An effective high-resolution method of non-line-of-sight millimeter-wave radar 3-D imaging

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National Science Open 2024年第5期3卷 36-52页

作者： xinyuan liu Shunjun Wei Wei Pu Xiang Cai Yanbo Wen Shisheng Guo Lingjiang Kong Xiaoling Zhang School of Information and Communication Engineering University of Electronic Science and Technology of ChinaChengdu 611731China

Non-line-of-sight(NLOS)imaging is a novel radar sensing technology that enables the reconstruction of hidden ***,it may suffer from synthetic aperture length reduction caused by ambient *** this study,a complex total variation(CTV)regularization-based sparse reconstruction method for NLOS three-dimensional(3-D)imaging by millimeter-wave(mm W)radar,named RM-CSTV method,is proposed to improve imaging quality and *** this scheme,the NLOS imaging model is first introduced,and associated geometric constraints for NLOS objects are ***,an effective high-resolution NLOS imaging method based on the range migration(RM)kernel and complex sparse joint total variation constraint,dubbed as modified RM-CSTV,is proposed for 3-D high-resolution imaging with edge *** experiments with multi-type NLOS targets show that the proposed RM-CSTV method can provide effective and high-resolution NLOS targets 3-D imaging.

关键词： NLOS imaging 3-D-SAR 3-D imaging sparse reconstruction

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中国人口老龄化与货币政策效力

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新金融 2024年第9期 29-35页

作者：方显仓刘倍玮刘欣元华东师范大学经济与管理学院华东师范大学国际金融研究所澳大利亚国立大学商业与经济学院

理论上,人口老龄化导致投机性货币需求的利率弹性下降、边际消费倾向减小,同时附加人口老龄化的松、紧货币政策条件下,实际投资的利率弹性、交易预防性货币需求的利率弹性大小都具有不对等性,收入弹性变小,这些可能通过影响劳动力市场... 详细信息

理论上,人口老龄化导致投机性货币需求的利率弹性下降、边际消费倾向减小,同时附加人口老龄化的松、紧货币政策条件下,实际投资的利率弹性、交易预防性货币需求的利率弹性大小都具有不对等性,收入弹性变小,这些可能通过影响劳动力市场、消费结构以及社会总需求等途径,对数量型和价格型货币政策传导效力产生异质性影响。本文基于1996-2022年中国31个省份的面板数据,运用面板向量自回归模型(PVAR)进行实证研究。结果显示:人口老龄化弱化了数量型货币政策对经济增长和通货膨胀的调节作用,强化了价格型货币政策对经济增长和通货膨胀的影响。建议货币政策制定者考虑人口老龄化因素,优化政策组合,以提高货币政策的针对性和有效性;同时也需关注人口老龄化对经济社会结构的长期影响,制定相应的适应性策略,以实现宏观经济的稳定和可持续发展。

关键词：人口老龄化货币政策政策有效性面板向量自回归模型

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《中国翻译能力测评等级标准》与《中国英语能力等级量表》翻译能力等级量表对比研究

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中国外语 2024年第3期21卷 87-97页

作者：穆雷梁伟玲刘馨媛广东外语外贸大学上海外国语大学

翻译能力测评体系建设是翻译人才队伍建设的基础,研制、应用有效的翻译能力标准对翻译人才阶梯化、细颗粒化的测评起着关键作用。《中国翻译能力测评等级标准》与《中国英语能力等级量表》对翻译能力的定义、描述与测评方法,各有侧重,... 详细信息

翻译能力测评体系建设是翻译人才队伍建设的基础,研制、应用有效的翻译能力标准对翻译人才阶梯化、细颗粒化的测评起着关键作用。《中国翻译能力测评等级标准》与《中国英语能力等级量表》对翻译能力的定义、描述与测评方法,各有侧重,各具特色,对比二者在研制背景与目的、理论基础与研制方法、描述语特征等方面的共性和差异,提出未来的研究选题,有助于翻译学界、翻译行业团体、翻译教师和学生正确认识和厘清二者的联系与区别,促进翻译能力标准及量表的相关学术研究、教学应用和职业资质考察,推动适合于中国国情、教情、学情和行情的翻译人才测评标准化建设。

关键词：翻译能力中国翻译能力测评等级标准 CSE 测评体系标准化

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