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浙江安吉气候生态产品总值探索和评估

气候变化研究进展 2024年第4期20卷 475-484页

作者：翟晓瑶王阔李正泉宋超辉方贺姚霞张含郁珍艳徐婵婵湖州市南浔区气象局浙江省气候中心衢州市衢江区气象局湖州市安吉县气象局宁波市北仑区气象局

本研究探索构建气候生态产品价值核算体系，以浙江安吉为例从气候资源开发价值、气候调节服务价值、气候固碳释氧价值、气候文旅附加价值四大类目核算安吉县气候生态经济价值量和功能量。结果显示，安吉县2022年气候生态产品总值为259.0... 详细信息

本研究探索构建气候生态产品价值核算体系，以浙江安吉为例从气候资源开发价值、气候调节服务价值、气候固碳释氧价值、气候文旅附加价值四大类目核算安吉县气候生态经济价值量和功能量。结果显示，安吉县2022年气候生态产品总值为259.08亿元，约占当年国内生产总值（582.37亿元）的44.49%。其中，气候资源开发价值为13.35亿元，占气候生态产品总值的5.15%；气候调节服务价值为167.11亿元，占气候生态产品总值的64.50%；气候固碳释氧价值为33.88亿元，占气候生态产品总值的13.08%；气候文旅附加价值为44.74亿元，占气候生态产品总值的17.27%。安吉县水能资源、风能资源和光能资源潜在开发价值丰富，总功能量为281.43亿kW?h，总值达到141.52亿元。研究表明，气候生态产品总值核算可以货币化反映安吉县的气候生态环境状态和变化，为地方绿色发展规划和适应气候变化提供评估参考。

关键词：气候生态产品总值(GEPC) 生态系统生产总值(GEP) 价值核算

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Structural knowledge-driven meta-learning for task offloading in vehicular networks with integrated communications,sensing and computing

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j.urnal of Information and Intelligence 2024年第4期2卷 302-324页

作者： Ruij.n Sun yao Wen Nan Cheng Wei Wang Rong Chai Yilong Hui State Key Laboratory of ISN Xidian UniversityXi'an 710071China Chongqing Key Laboratory of Mobile Communication Technology Chongqing University of Posts and TelecommunicationsChongqing 400065China

Task offloading is a potential solution to satisfy the strict requirements of computation-intensive and latency-sensitive vehicular applications due to the limited onboard computing ***,the overwhelming upload traffic may lead to unacceptable uploading *** tackle this issue,for tasks taking environmental data as input,the data perceived by roadside units(RSU)equipped with several sensors can be directly exploited for computation,resulting in a novel task offloading paradigm with integrated communications,sensing and computing(I-CSC).With this paradigm,vehicles can select to upload their sensed data to RSUs or transmit computing instructions to RSUs during the *** optimizing the computation mode and network resources,in this paper,we investigate an I-CSC-based task offloading problem to reduce the cost caused by resource consumption while guaranteeing the latency of each *** this nonconvex problem can be handled by the alternating minimization(AM)algorithm that alternatively minimizes the divided four sub-problems,it leads to high computational complexity and local optimal *** tackle this challenge,we propose a creative structural knowledge-driven meta-learning(SKDML)method,involving both the model-based AM algorithm and neural ***,borrowing the iterative structure of the AM algorithm,also referred to as structural knowledge,the proposed SKDML adopts long short-term memory(LSTM)networkbased meta-learning to learn an adaptive optimizer for updating variables in each sub-problem,instead of the handcrafted counterpart in the AM ***,to pull out the solution from the local optimum,our proposed SKDML updates parameters in LSTM with the global loss *** results demonstrate that our method outperforms both the AM algorithm and the meta-learning without structural knowledge in terms of both the online processing time and the network performance.

关键词： Knowledge-driven meta-learning Integration of communication Sensing and computing Task offloading Vehicular networks

Drosophila models used to simulate human ATP1A1 gene mutations that cause Charcot-Marie-Tooth type 2 disease and refractory seizures

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Neural Regeneration Research 2025年第1期20卷 265-276页

作者： yao Yuan Lingqi Yu Xudong Zhuang Dongj.ng Wen j.n He j.ngmei Hong j.ayu Xie Shengan Ling Xiaoyue Du Wenfeng Chen Xinrui Wang Institute of Life Sciences College of Biological Science and EngineeringFuzhou UniversityFuzhouFujian ProvinceChina NHC Key Laboratory of Technical Evaluation of Fertility Regulation for Non-human Primate(Fuj.an Maternity and Child Health Hospital) FuzhouFujian ProvinceChina Medical Research Center Fujian Maternity and Child Health HospitalCollege of Clinical Medicine for Obstetrics&Gynecology and PediatricsFujian Medical UniversityFuzhouFujian ProvinceChina Department of Neurology and Institute of Neurology of The First Affiliated Hospital Institute of Neuroscienceand Fujian Key Laboratory of Molecular NeurologyFujian Medical UniversityFuzhouFujian ProvinceChina

Certain amino acids changes in the human Na^(+)/K^(+)-ATPase pump,ATPase Na^(+)/K^(+)transporting subunit alpha 1(ATP1A1),cause Charcot-Marie-Tooth disease type 2(CMT2)disease and refractory *** develop in vivo models to study the role of Na^(+)/K^(+)-ATPase in these diseases,we modified the Drosophila gene homolog,Atpα,to mimic the human ATP1A1 gene mutations that cause *** located within the helical linker region of human ATP1A1(I592T,A597T,P600T,and D601F)were simultaneously introduced into endogenous Drosophila Atpαby CRISPR/Cas9-mediated genome editing,generating the Atpα^(TTTF)*** addition,the same strategy was used to generate the corresponding single point mutations in flies(Atpα^(I571T),Atpα^(A576T),Atpα^(P579T),and Atpα^(D580F)).Moreover,a deletion mutation(Atpα^(mut))that causes premature termination of translation was generated as a positive *** these alleles,we found two that could be maintained as homozygotes(Atpα^(I571T)and Atpα^(P579T)).Three alleles(Atpα^(A576T),Atpα^(P579)and Atpα^(D580F))can form heterozygotes with the Atpαmut *** found that the Atpαallele carrying these CMT2-associated mutations showed differential phenotypes in *** heterozygous for Atpα^(TTTF)mutations have motor performance defects,a reduced lifespan,seizures,and an abnormal neuronal *** Drosophila models will provide a new platform for studying the function and regulation of the sodium-potassium pump.

关键词： ATP1A1 Atpα bang-sensitive paralysis Charcot-Marie-Tooth disease type 2 CRISPR/Cas9 homology-directed repair Na^(+)/K^(+)-ATPase point mutation seizures sodium pump

Surface-derived phosphate layer on NiFe-layered double hydroxide realizes stable seawater oxidation at the current density of 1 A·cm^(−2)

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Nano Research 2024年第7期17卷 5786-5794页

作者： Chaoxin Yang Zhengwei Cai j.e Liang Kai Dong Zixiao Li Hang Sun Shengj.n Sun Dongdong Zheng Hui Zhang Yongsong Luo Yongchao yao Yan Wang Yuchun Ren Qian Liu Luming Li Wei Chu Xuping Sun Bo Tang College of Chemistry Chemical Engineering and Materials ScienceShandong Normal UniversityJinan 250014China Institute of Fundamental and Frontier Sciences University of Electronic Science and Technology of ChinaChengdu 610054China Department of Science and Environmental Studies Faculty of Liberal Arts and Social Sciencethe Education University of Hong KongHong Kong 999077China Institute for Advanced Study Chengdu UniversityChengdu 610106China Laoshan Laboratory Qingdao 266237China

Seawater electrolysis,especially in coastlines,is widely considered as a sustainable way of making clean and high-purity H2 from renewable energy;however,the practical viability is challenged severely by the limited anode durability resulting from side reactions of chlorine ***,we report an effective Cl^(−) blocking barrier of NiFe-layer double hydroxide(NiFe-LDH)to harmful chlorine chemistry during alkaline seawater oxidation(ASO),a pre-formed surface-derived NiFe-phosphate(Pi)***,the PO_(4)^(3−)-enriched outer-layer is capable of physically and electrostatically inhibiting Cl−adsorption,which protects active Ni^(3+)sites during *** NiFe-LDH with the NiFe-Pi outer-layer(NiFe-LDH@NiFe-Pi)exhibits higher current densities(j.and lower overpotentials to afford 1 A·cm^(−2)(η1000 of 370 mV versusη1000 of 420 mV)than the NiFe-LDH in 1 M KOH+***,the NiFe-LDH@NiFe-Pi also demonstrates longer-term electrochemical durability than NiFe-LDH,attaining 100-h duration at the j.of 1 A·cm^(−2).Additionally,the importance of surface-derived PO_(4)^(3−)-enriched outer-layer in protecting the active centers,γ-NiOOH,is explained by ex situ characterizations and in situ electrochemical spectroscopic studies.

关键词： seawater oxidation phosphate outer-layer layered double hydroxide electrostatic repulsion in situ Raman

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低压涡轮在工作剖面内的多学科耦合仿真

工程热物理学报 2024年第5期45卷 1374-1384页

作者：张云达邹正平姚李超北京航空航天大学能源与动力工程学院航空发动机气动热力国家级重点实验室北京100191 北京航空航天大学航空发动机研究院北京102206

在涡轮的典型工作剖面内,采用计算流体力学和两种多学科耦合求解方式对某二级低压涡轮部件进行仿真,比较不同求解方式所预测的涡轮气动热力参数之间的差异,分析工作剖面内局部几何的形变规律以及局部形变对流场的影响,结果表明:多学科... 详细信息

在涡轮的典型工作剖面内,采用计算流体力学和两种多学科耦合求解方式对某二级低压涡轮部件进行仿真,比较不同求解方式所预测的涡轮气动热力参数之间的差异,分析工作剖面内局部几何的形变规律以及局部形变对流场的影响,结果表明:多学科耦合作用对低叶高位置叶型负荷分布产生一定的影响,具体影响规律与不同工况密切相关。考虑固体域热传导和形变的多学科耦合求解方式所预测的效率值更高。随着涡轮功率的提升,级间轮缘间歇和封严篦齿间隙的改变会导致更多封严冷气聚集在前腔中,影响盘腔内的流动结构,削弱了燃气入侵现象,实现盘腔内更好的冷却和封严效果。

关键词：多学科耦合低压涡轮工作剖面

Kerr-AdS黑洞的基于独立联络形式拉氏量的守恒量

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四川大学学报（自然科学版） 2024年第1期61卷 149-154页

作者：王耀郭伟杰彭俊金贵州师范大学物理与电子科学学院贵阳550001 贵州师范大学贵州省射电天文数据处理重点实验室贵阳550001

基于爱因斯坦引力理论的独立联络形式,由诺特定理可以导出一个含任意参考背景仿射联络的推广Katz-Bicak-Lynden-Bell(KBL)势,借此得到一个守恒量定义式.本文把该定义式应用于渐近anti-de Sitter(AdS)且转动的Kerr-AdS黑洞时空的质量与... 详细信息

基于爱因斯坦引力理论的独立联络形式,由诺特定理可以导出一个含任意参考背景仿射联络的推广Katz-Bicak-Lynden-Bell(KBL)势,借此得到一个守恒量定义式.本文把该定义式应用于渐近anti-de Sitter(AdS)且转动的Kerr-AdS黑洞时空的质量与角动量的定义,给出了与其他标准方法一致的结果.特别地,本文首次构造了一个比通常KBL超势中的参考背景联络更具一般性的新联络,相关结果表明KBL方法中的参考背景联络不具有唯一性,而对它的基本要求就是保持理论的协变性.

关键词： Kerr-AdS黑洞引力场的守恒荷 KBL方法 Kerr黑洞

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磁链闭环控制下接触器的优化设计方法

电工技术学报 2024年第10期39卷 3206-3217页

作者：汤龙飞姚林睿阳文蔚福州大学电气工程与自动化学院福州350108 智能配电网装备福建省高校工程研究中心福州350108

该文对接触器的优化设计进行研究,将磁链闭环控制引入接触器本体优化设计中,实现控制策略与本体优化设计的协同。首先,综合考虑接触器的外部漏磁和磁场分布特性,在三维有限元动态仿真的基础上构建改进的磁路模型,以实现磁路模型的参数... 详细信息

该文对接触器的优化设计进行研究,将磁链闭环控制引入接触器本体优化设计中,实现控制策略与本体优化设计的协同。首先,综合考虑接触器的外部漏磁和磁场分布特性,在三维有限元动态仿真的基础上构建改进的磁路模型,以实现磁路模型的参数化计算。然后,提出了一种改进的非支配排序遗传算法(NSGA-Ⅱ)与磁路模型相结合进行优化设计,以Pareto前沿个数判断种群进化进程,实现自适应遗传-差分混合进化策略,提高了多目标优化设计算法的全局收敛性和收敛速度。最后,将恒磁链闭环控制策略与多目标优化设计相结合,通过减小接触器的电磁惯性、机械惯性及提高控制磁通密度,来提高机构响应速度和磁性材料利用率,同时减小触头弹跳。仿真及实验验证了改进磁路模型及多目标优化设计方法的有效性。

关键词：接触器优化设计磁路法改进的非支配排序遗传算法(NSGA-Ⅱ)

Normal and Superconducting Properties of La_(3)Ni_(2)O_(7)

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Chinese Physics Letters 2024年第7期41卷 140-151页

作者：王猛闻海虎吴涛姚道新向涛 Guangdong Provincial Key Laboratory of Magnetoelectric Physics and Devices School of PhysicsSun Yat-Sen UniversityGuangzhou 510275China National Laboratory of Solid State Microstructures and Department of Physics Collaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210093China Hefei National Research Center for Physical Sciences at the Microscale University of Science and Technology of ChinaHefei 230026China Institute of Physics Chinese Academy of SciencesBeijing 100190China School of Physics University of Chinese Academy of SciencesBeijing 100190China

This review provides a comprehensive overview of current research on the structural,electronic,and magnetic characteristics of the recently discovered high-temperature superconductor La_(3)Ni_(2)O_(7) under high *** present the experimental results for synthesizing and characterizing this material,derived from measurements of transport,thermodynamics,and various spectroscopic techniques,and discuss their physical *** also explore theoretical models proposed to describe the electronic structures and superconducting pairing symmetry in La_(3)Ni_(2)O_(7),highlighting the intricate interplay between electronic correlations and magnetic *** these advances,challenges remain in growing high-quality samples free of extrinsic phases and oxygen deficiencies and in developing reliable measurement tools for determining diamagnetism and other physical quantities under high *** investigations in these areas are essential to deepening our understanding of the physical properties of La_(3)Ni_(2)O_(7) and unlocking its superconducting pairing mechanism.

关键词： pairing electronic deepening

中国汉族成年人群单不饱和脂肪酸摄入量与非酒精性脂肪性肝病风险关系的回顾性病例对照研究

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中国全科医学 2024年第29期27卷 3623-3628页

作者：付伟程国彬吕麟亚丁瑶王瑶赵俊龙联勤保障部队第925医院消化内科空军军医大学基础医学院医学遗传学与发育生物学系

背景尽管单不饱和脂肪酸（MUFA）摄入与非酒精性脂肪性肝病（NAFLD）的关联已受到关注，但在中国人群中的研究较少。目的探讨中国人群MUFA每日摄入量与NAFLD发病率之间的关联，并确定MUFA摄入量对NAFLD风险的潜在阈值。方法本研究数... 详细信息

背景尽管单不饱和脂肪酸（MUFA）摄入与非酒精性脂肪性肝病（NAFLD）的关联已受到关注，但在中国人群中的研究较少。目的探讨中国人群MUFA每日摄入量与NAFLD发病率之间的关联，并确定MUFA摄入量对NAFLD风险的潜在阈值。方法本研究数据从Dryad数据库获取并严格遵守Dryad的服务条款（https://***/10.5061/dryad.8nn2j.6）。选取2015年4月—2017年8月在福建医科大学附属南平第一医院治疗的534例NAFLD患者作为病例组，选取同期534例体检健康者作为对照组。使用半定量食物频率问卷（SQFFQ）收集参与者的典型食物消费信息，并计算MUFA每日摄入量。采用综合分析策略，包括基线特征、多变量统计、非线性关系及亚组探究，探讨MUFA每日摄入量与NAFLD发病率的关联，同时考虑多种混杂因素如年龄、性别、生活方式和其他饮食成分，以确定MUFA对NAFLD风险的潜在阈值。结果在调整模型中，MUFA每日摄入量是NAFLD风险的影响因素（OR=1.04,95%CI=1.02～1.07,P<0.001）。将MUFA每日摄入量转换为分类变量后，在调整模型中，随着MUFA每日摄入量的增加，NAFLD风险呈增加趋势（P趋势<0.001）。非线性分析表明，当MUFA每日摄入量达到39.04 g/d时，其与NAFLD风险的关系发生显著变化（P=0.045）。MUFA每日摄入量<39.04 g/d时，NFALD风险为1.08(95%CI=1.04～1.11,P<0.001)。亚组分析结果显示，性别、年龄、能量每日摄入量与NAFLD风险间存在交互作用（P交互<0.05）。结论增加MUFA每日摄入量与较高的NAFLD风险相关，并在特定阈值（39.04 g/d）后呈现非线性关系。这一发现强调了在NAFLD管理中考虑饮食脂肪的质量和数量的重要性。

关键词：非酒精性脂肪性肝病单不饱和脂肪酸饮食脂肪风险因素非线性关系

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