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Forecasting the volatility of EUA futures with economic policy uncertainty using the GARCH‑MIDAS model

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Financial Innovation 2021年第1期7卷 1615-1633页

作者： Jian Liu ziting zhang Lizhao Yan Fenghua Wen School of Economics and Management Changsha University of Science and TechnologyChangshaHunanPeople’s Republic of China School of Business Hunan Normal UniversityChangshaHunanPeople’s Republic of China Business School Central South UniverdityChangshaHunanPeople’s Republic of China

This study investigates the impact of economic policy uncertainty(EPU)on the volatility of European Union(EU)carbon futures prices and whether it has predictive power for the volatility of carbon futures *** GARCH-MIDAS model is applied for evaluating the impact of different EPU indexes on the price volatility of European Union Allowance(EUA)*** then compare the predictive power for the volatility of the two GARCH-MIDAS models based on different EPU indexes and six GARCH-type *** empirical results show that the GARCH-MIDAS models,which exhibit superior out-of-sample predictive ability,outperform GARCH-type *** results also indicate that EPU has noticeable effect on the volatility of EUA ***,the forecast accuracy of the EU EPU index is significantly higher than that of the global EPU *** checks further confirm that the EPU index(especially the EPU index of the EU)has strong predictive power for EUA futures ***,using the volatility forecasting methods that GARCH-MIDAS models combine with the EPU index,investors can construct their portfolios to realize economic returns.

关键词： EUA Economic policy uncertainty GARCH-MIDAS Volatility forecasting Futures

Na_(2)B_(6)SO_(13) with unprecedented [B_(6)SO_(13)]_(∞) double chains and largest birefringence among borosulfates induced by the uniform arrangement of [B_(3)O_(7)] units

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Science China Chemistry 2025年第2期68卷 475-480页

作者： Jinbin Fan ziting Yan Zilong Chen Huimin Li Zhihua Yang Fangfang zhang Shilie Pan Research Center for Crystal Materials State Key Laboratory of Functional Materials and Devices for Special Environmental ConditionsXinjiang Key Laboratory of Functional Crystal MaterialsXinjiang Technical Institute of Physics and ChemistryChinese Academy of SciencesUrumqi 830011China Center of Materials Science and Optoelectronics Engineering University of Chinese Academy of SciencesBeijing 100049China

Birefringence is crucial for birefringent crystals to modulate polarized light and nonlinear optical crystals to enable *** is closely related to the arrangement of advantageous functional groups with large microcosmic polarizability anisotropy in the ***,designing crystals with large birefringence by modulating the arrangement of advantageous functional groups is still a *** this work,the arrangement of the advantageous[B_(3)O_(7)]groups is optimized by introducing rigid tetrahedral[SO_(4)]groups,resulting in a novel boron-rich borosulfate,Na_(2)B_(6)SO_(13) ,which exhibits unprecedented[B_(6)SO_(13)]_(∞)double chain and an enhanced birefringence(Δn=0.07 at 589.3 nm)against the borate parent *** calculations confirm that the birefringence is mainly attributable to the uniform alignment of[B_(3)O_(7)]***_(2)B_(6)SO_(13) also possesses a deep ultraviolet(DUV)cutoff edge(λ<185 nm).This work provides a feasible method to design DUV birefringent crystals with large birefringence by inducing the arrangement of advantageous functional groups.

关键词： borosulfate deep ultraviolet birefringence modulated groups

Ferroptosis-induced anticancer effect of resveratrol with a biomimetic nano-delivery system in colorectal cancer treatment

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Asian Journal of Pharmaceutical Sciences 2022年第5期17卷 751-766页

作者： ziting zhang You Ji Nan Hu Qinqi Yu Xinrui zhang Jie Li Fenglei Wu Huae Xu Qiyun Tang Xiaolin Li Department of Geriatric Gastroenterology the First Affiliated Hospital of Nanjing Medical UniversityNanjing 210009China Department of Pharmaceutics School of PharmacyNanjing Medical UniversityNanjing 211166China Department of Oncology the Affiliated Hospital of Kangda College of Nanjing Medical University&the First People’s Hospital of LianyungangLianyungang 222000China

Ferroptosis is a novel form of programmed cell death impelled by iron-dependent lipid peroxidation,which may be a potential strategy for cancer *** we demonstrated for the first time that Resveratrol(RSV),a traditional Chinese medicine(TCM)chemical monomer,could effectually inhibit the growth of colon cancer cells through the ROS-dependent ferroptosis ***,RSV evoked the increase of reactive oxygen species and lipid peroxidation in colorectal cancer cells,and eventually lead to ***,RSV could promote ferroptosis by downregulating the expression of the channel protein solute carrier family 7 member 11(SLC7A11)and glutathione peroxidase 4(GPX4).To improve the delivery efficiency of RSV,a biomimetic nanocarrier was developed by coating RSV-loaded poly(ε-caprolactone)-poly(ethylene glycol)(PCL-PEG)nanoparticles with erythrocyte membrane(RSV-NPs@RBCm).The RSV-NPs@RBCm provide the possibility to escape macrophage phagocytosis and have a long circulation *** addition,when coupled with a tumor-penetrating peptide iRGD,which could trigger enhanced tissue penetration tumor-specifically,the delivery of RSV-NPs@RBCm into tumors would be significantly improved results from the in vivo study demonstrated an excellent treatment efficacy for ***,our study highlighted the therapeutic potential of RSV as a ferroptosis-inducing anticancer agent and when loaded into a biomimetic nanoplatform,it might pave the way for the application of RSV loaded nanosystems for colorectal cancer treatment.

关键词： Resveratrol Red-blood-cell membrane Colorectal cancer Ferroptosis IRGD

Improvements on voltage-resistant performance of bipolar static induction transistor (BSIT) with buried gate structure

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Science China(Information Sciences) 2012年第4期55卷 962-970页

作者： WANG YongShun,FENG JingJing,LIU ChunJuan,WANG ziting,WANG ZaiXing & zhang CaiZhen School of Electronic and Information Engineering,Lanzhou Jiaotong University,Lanzhou 730070,China School of Electronic and Information Engineering Lanzhou Jiaotong University Lanzhou China

The breakdown mechanism of power bipolar static induction transistor (BSIT) with buried gate structure is analyzed in depth.A power BSIT sample with high voltage-resistant capability has been designed and fabricated in this *** technological methods for improving high voltage performances are *** active region of BSIT is surrounded with a deep trench to avoid any probable influences of various defects on device *** field-limiting ring-shape junctions and one channel termination ring-shape junction are arranged around the gate region to reduce the electric field *** gate-source breakdown voltage BV GS of power BSIT has been increased to 110 V from previous value of 50-60 V,and its blocking voltage is increased to 1700 *** optimal geometrical dimensions for achieving the maximum breakdown voltage BV GS and blocking voltage V block are also represented in the paper.

关键词： bipolar static induction transistor voltage-resistant capability punch-through deep trench

Superior in vitro anticancer effect of biomimetic paclitaxel and triptolide co-delivery system in gastric cancer

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The Journal of Biomedical Research 2021年第4期35卷 327-338页

作者： Siwan Wang Hui Jiang Jia Wang Haisi Wu Ting Wu Mengnan Ni Qianqian Zhao You Ji ziting zhang Chunming Tang Huae Xu Department of Pharmaceutics School of PharmacyNanjing Medical UniversityNanjingJiangsu 211166China Jiangsu Key Laboratory of Molecular and Translational Cancer Research Affiliated Cancer Hospital of Nanjing Medical UniversityJiangsu Cancer HospitalJiangsu Institute of Cancer ResearchNanjingJiangsu 210009China Department of Geriatric Gastroenterology the First Affiliated Hospital of Nanjing Medical UniversityNanjingJiangsu 210029China

As a well-known anticancer drug,paclitaxel(PTX),a first-line chemotherapeutic agent,remains unsatisfactory for gastric cancer *** is reported that triptolide(TPL)could enhance the anti-gastric cancer effect of *** the poor solubility of both drugs,we developed a red blood cell membrane-biomimetic nanosystem,an emerging tool in drug delivery,to co-load paclitaxel and triptolide(red blood cell membrane coated PTX and TPL co-loaded poly(lactic-co-glycolic acid)[PLGA]nanoparticles,RP(P/T)).The successful preparation was confirmed in terms of particle size,morphology,and surface markers *** biomimetic system could prolong circulation and escape immune *** these properties were verified by stability,in vitro drug release,and cellular uptake ***,the MTT and colony formation assays demonstrated the superior anti-proliferation effect of the RP(P/T)to free *** enhanced antitumor effects of RP(P/T)on migration and invasion were also evaluated by wound-healing and transwell ***,the bionic co-delivery nanoplatform with improved efficacy in vitro is a promising therapy for gastric cancer.

关键词： paclitaxel triptolide red-blood-cell membrane gastric cancer

Comprehensive Chlorine Suppression:Advances in Materials and System Technologies for Direct Seawater Electrolysis

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Nano-Micro Letters 2025年第5期17卷 297-325页

作者： Cenkai Zhao Zheyuan Ding Kunye zhang ziting Du Haiqiu Fang Ling Chen Hao Jiang Min Wang Mingbo Wu State Key Laboratory of Heavy Oil Processing College of New EnergyChina University of Petroleum(East China)Qingdao 266580People’s Republic of China Beijing National Laboratory for Molecular Sciences New Cornerstone Science LaboratoryCollege of Chemistry and Molecular EngineeringPeking UniversityBeijing 100871People’s Republic of China Key Laboratory for Ultrafine Materials of Ministry of Education School of Materials Science and EngineeringEast China University of Science and TechnologyShanghai 200237People’s Republic of China

Seawater electrolysis offers a promising pathway to generate green hydrogen,which is crucial for the net-zero emission *** seawater electrolysis is severely limited by high energy demands and system complexity,while the direct seawater electrolysis bypasses pre-treatment,offering a simpler and more cost-effective ***,the chlorine evolution reaction and impurities in the seawater lead to severe corrosion and hinder electrolysis’s ***,we review recent advances in the rational design of chlorine-suppressive catalysts and integrated electrolysis systems architectures for chloride-induced corrosion,with simultaneous enhancement of Faradaic efficiency and reduction of electrolysis’s ***,promising directions are proposed for durable and efficient seawater electrolysis *** review provides perspectives for seawater electrolysis toward sustainable energy conversion and environmental protection.

关键词： Direct seawater electrolysis Oxygen evolution reaction Hydrogen evolution reaction Chlorine suppression Seawater electrolysis system

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多指标核心作者识别方法研究

现代情报 2020年第7期40卷 144-151页

作者：张子婷郑彦宁袁芳中国科学技术信息研究所北京100038

[目的/意义]将无偏指标引入评价体系对某一研究领域的核心作者进行准确识别。本文构建了一个研究领域规范化的引文影响力指标,提出了综合多指标的核心作者识别方法。[方法/过程]本研究基于Web of Science数据库,以某一研究领域的学术论... 详细信息

[目的/意义]将无偏指标引入评价体系对某一研究领域的核心作者进行准确识别。本文构建了一个研究领域规范化的引文影响力指标,提出了综合多指标的核心作者识别方法。[方法/过程]本研究基于Web of Science数据库,以某一研究领域的学术论文为数据基础,利用普赖斯定律确定核心作者候选人,综合发文量、被引频次、h指数以及研究领域规范化后的引文影响力4个指标,利用综合指数法和熵值法确定每位学者的最后得分,将高于100分的学者确定为该研究领域内的核心作者。[结果/结论]最后,利用上述方法在DNA计算领域进行了应用分析,按照综合得分k>100的标准遴选出DNA计算领域的32位核心作者。

关键词：核心作者识别方法引文影响力综合指数法熵值法

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GEB25电动轮渗油原因分析及解决办法

露天采矿技术 2019年第6期34卷 117-120页

作者：张子亭神华北电胜利能源有限公司设备维修中心

为了解决目前存在的问题,分解电动轮不同的渗漏部位找到故障产生的几种原因,针对不同原因制定修复工艺如焊修工艺、装配工艺,根据材料的特性采取相应的安装工艺保证安装过程无差错,并利用有效的技术手段确认修复工艺可靠。同时为提高电... 详细信息

为了解决目前存在的问题,分解电动轮不同的渗漏部位找到故障产生的几种原因,针对不同原因制定修复工艺如焊修工艺、装配工艺,根据材料的特性采取相应的安装工艺保证安装过程无差错,并利用有效的技术手段确认修复工艺可靠。同时为提高电动轮使用寿命提出了降负载、改善采场运输条件、提高司机操驾水平和检测油脂中铁、尘土含量等措施,形成了一套具有自学习、自预测、自分析、自维修等能力为一体的现代管控手段,找到电动轮自主维修的新思路。

关键词：润滑润滑油管渗漏原因润滑脂解决办法

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陕甘宁边区抗战剧团活动述论

兰台世界 2023年第11期 137-141,146页

作者：张梓婷北京联合大学马克思主义学院

抗战时期,陕甘宁边区封建思想盛行,经济生产和文化教育事业十分落后。中国共产党和边区政府对群众动员工作高度重视,依托抗战剧团开展一系列群众喜闻乐见的宣传活动,吸引边区群众积极参加抗战、动员边区群众发展生产、倡导边区群众婚姻... 详细信息

抗战时期,陕甘宁边区封建思想盛行,经济生产和文化教育事业十分落后。中国共产党和边区政府对群众动员工作高度重视,依托抗战剧团开展一系列群众喜闻乐见的宣传活动,吸引边区群众积极参加抗战、动员边区群众发展生产、倡导边区群众婚姻自主等,这些活动在一定程度上解放了边区群众思想,为抗战胜利提供了保障。

关键词：抗战时期陕甘宁边区抗战剧团