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Integrated Frequency-constrained Scheduling Considering Coordination of Frequency Regulation Capabilities from Multi-source Converters

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Journal of Modern Power Systems and Clean Energy 2024年第1期12卷 261-274页

作者： Jiaming Li Ying Qiao Zongxiang Lu Wei Ma xin cao Rongfu Sun the Department of Electrical Engineering Tsinghua UniversityBeijing 100084China the China Suntien Green Energy Limited Company Shijiazhuang 050011China the State Grid Jibei Electric Power Company Beijing 100054China

As the proportion of renewable energy(RE)increases,the inertia and the primary frequency regulation(FR)capability of the power system ***,ensuring frequency security in the scheduling model has become a new technical requirement in power systems with a high share of *** to a shortage of conventional synchronous generators,the frequency support of multi-source converters has become an indispensable part of the system frequency resources,especially variable-speed wind turbine generation(WTG)and battery energy storage(BES).Quantitative expression of the FR capability of multi-source converters is necessary to construct frequency-constrained scheduling ***,the frequency support performance of these converter-interfaced devices is related to their working states,operation modes,and parameters,and the complex coupling of these factors has not been fully exploited in existing *** this study,we propose an integrated frequency-constrained scheduling model considering the coordination of FR capabilities from multi-source *** FR control strategies and variable FR parameters for WTG with or without reserved power are modeled,and multi-target allocation of BES capacity between tracking dispatch instruction and emergency FR is ***,the variable FR capabilities of WTG and BES are embedded into the integrated frequency-constrained scheduling *** nonlinear constraints for frequency security are precisely linearized through an improved iteration-based *** effectiveness of the proposed model is verified in a modified IEEE 24-bus standard *** results suggest that the coordinated participation of BES and WTG in FR can effectively reduce the cost of the scheduling model while meeting frequency security constraints.

关键词： Battery energy storage(BES) wind turbine generation(WTG) frequency regulation(FR) frequency security power system scheduling

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Lightweight foam-like nitrogen-doped carbon nanotube complex achieving highly efficient electromagnetic wave absorption

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Journal of Materials Science & Technology 2024年第1期168卷 114-123页

作者： Zongcheng Li Jin Liang Zhiheng Wei xin cao Jiahui Shan Chunwei Li Xiaoyi Chen Dong Zhou Ruizhe xing Chunjia Luo Jie Kong MOE Key Lab of Materials Physics and Chemistry in Extraordinary Conditions Shaanxi Key Laboratory of Macromolecular Science and TechnologySchool of Chemistry and Chemical EngineeringNorthwestern Polytechnical UniversityXi’an 710072China Key laboratory of Flexible Electronics of Zhejiang Province Ningbo Institute of Northwestern Polytechnical UniversityNingbo 315103China Polymer Materials and Engineering Department School of Materials Science and EngineeringChang’an UniversityXi’an 710064China

With the increased electromagnetic wave(EMW)threat to military and human health,the develop-ment of EMW-absorbing materials is ***-organic framework derivatives containing magnetic nanoparticles and a carbon matrix are potential candidates for designing efficient EMW-absorbing ***,a zeolitic imidazolate framework-67(ZIF-67)-embedded three-dimensional melamine foam is pyrolyzed to afford carbon foam-based nitrogen-doped carbon nanotube composites,named 3D foam-like CoO/Co/*** CoO/Co particles are confined in the dielectric carbon nanotube *** carbon nanotubes provide considerable conductive loss,while CoO/Co magnetic particles are con-ducive to providing magnetic loss and adjusting impedance ***,the numerous defect structures introduced by heteroatomic doping(nitrogen)cause dipole polarization and simultaneously adjust impedance ***,the unique porous nanotube structure promotes multiple re-flections and scattering of EMWs,further optimizing impedance ***/Co/N-CNTs composites exhibit a minimum reflection loss of−52.3 dB at a matching thickness of 2.0 mm,while the correspond-ing effective absorption bandwidth is 5.28 GHz at a matching thickness of 2.2 *** study reports a novel approach to fabricating a lightweight high-performance EMW-absorbing material.

关键词： Lightweight porous carbon materials Carbon nanotubes CoO/Co magnetic particles Electromagnetic synergistic effect Impedance matching

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Electronegativity-assisted optimized electronic structure of functionalized-Pt catalysts for boosting oxygen reduction kinetics

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Rare Metals 2024年第5期43卷 1965-1976页

作者： Jin Long Kai-Wen Zhuang Wei Liao Yan An Bin Wang Chen-Zhong Wu Jian-xin cao Qing Wang Jun-Song Chen Qing-Mei Wang Guizhou University Key Laboratory of Green Chemical and Clean Energy Technology School of Chemistry and Chemical EngineeringGuizhou UniversityGuiyang 550025China Guizhou University Engineering Research Center of Effcient Utilization for Industrial Waste Guizhou UniversityGuiyang 550025China Institute of Dual-Carbon and New Energy Technology Innovation and Development of Guizhou Province Guiyang 550025China Department of Dermatology West China HospitalSichuan UniversityChengdu610041China Institute for Catalysis Hokkaido UniversitySapporo 001-0021Japan School of Materials and Energy University of Electronic Science and Technology of ChinaChengdu 611731China Interdisciplinary Materials Research Center Institute for Advanced StudyChengdu UniversityChengdu 610106China

Opportunity to harmonize aspects of oxygen reduction reaction(ORR)performance and structure,and morphology,as well as composition,is urgent for the commercialization of proton exchange membrane fuel ***,we demonstrate the design and synthesis of a functionalized-supported-Pt catalyst(Pt@HNC)featuring a hollow nitrogen-modified dodecahedral carbon substrate obtained by a stress-induced-shrink tailoring *** as-obtained Pt@HNC catalyst possesses enhanced ORR per-formance,in particular with half-wave potential,mass activity(MA)and specific activity,which greatly exceed the commercial Pt/*** density functional theory(DFT)calculations further confirmed that the charge redistribution induced by the electronegativity differences improved the electron interaction between Pt and HNC *** optimized electronic structure of Pt weakens the reaction energy barrier on the Pt@HNC surface and adsorption of^(*)OH species,thus cooperatively improving the intrinsic activity toward ***,our work indeed provides a guide for the future design of functional nanomaterials in the field of catalysts and clean energy.

关键词： Proton exchange membrane fuel cell(PEMFC) Oxygen reduction catalysis Supported Pt-based catalyst Stability

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Gates joint locally connected network for accurate and robust reconstruction in optical molecular tomography

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Journal of Innovative Optical Health Sciences 2024年第3期17卷 11-22页

作者： Minghua Zhao Yahui Xiao Jiaqi Zhang xin cao Lin Wang School of Computer Science and Engineering Xi’an University of TechnologyXi’anChina School of Information Science and Technology Northwest UniversityXi’an 710127China

Optical molecular tomography(OMT)is a potential pre-clinical molecular imaging technique with applications in a variety of biomedical areas,which can provide non-invasive quantitative three-dimensional(3D)information regarding tumor distribution in living *** construction of optical transmission models and the application of reconstruction algorithms in traditional model-based reconstruction processes have affected the reconstruction results,resulting in problems such as low accuracy,poor robustness,and long-time ***,a gates joint locally connected network(GLCN)method is proposed by establishing the mapping relationship between the inside source distribution and the photon density on surface directly,thus avoiding the extra time consumption caused by iteration and the reconstruction errors caused by model ***,gates module was composed of the concatenation and multiplication operators of three different *** was embedded into the network aiming at remembering input surface photon density over a period and allowing the network to capture neurons connected to the true source selectively by controlling three different *** evaluate the performance of the proposed method,numerical simulations were conducted,whose results demonstrated good performance in terms of reconstruction positioning accuracy and robustness.

关键词： Optical molecular tomography gates module positioning accuracy robustness

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Simultaneous type III congenital esophageal atresia and patent ductus arteriosus in a low-weight patient: A case report

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World Journal of Clinical Cases 2024年第3期12卷 560-564页

作者： Yong-Yu Ma Jun-Ru Chen Shi-Wu Yang Shu-Yu Wang xin cao Jun Wu Faculty of Pediatrics Children’s Hospital Affiliated to Kunming Medical UniversityKunming 650103Yunnan ProvinceChina Department of Cardiothoracic Surgery Kunming Children’s HospitalKunming 650103Yunnan ProvinceChina

BACKGROUND We report a low-birth-weight child(1.8 kg)with neonatal type III congenital esophageal atresia(CEA)combined with symptomatic patent ductus arteriosus(PDA).After comprehensive evaluation,esophageal anastomosis was performed on postnatal day 11 after excluding surgical contraindications,and arterial catheter ligation was performed at the same *** surgery for CEA combined with PDA has not been clearly reported in the *** SUMMARY We report a 6-day-old female child with type III CEA and *** patient presented with foam at the mouth after birth,cough and shortness of breath after *** another hospital,she was considered to have neonatal pneumonia,neonatal jaundice and congenital heart disease and transferred to our *** iodine oil radiography of the esophagus and echocardiography we con-firmed diagnosis of CEA and *** diameter of the PDA was 8 mm,with obvious left to right *** performed right rear extrapleural orificium fistula ligation and esophageal anastomosis,and ligation of PDA via left axilla straight incision after 5 d of *** operations were successful,and the incision healed after 12 d,and the patient was *** re-examined the patient 1 mo after *** did not vomit when she ate rice *** angiography showed no stricture of the anastomotic *** patient weighed 3.2 *** For CEA patients with multiple risk factors,comprehensive,timely and accurate diagnosis and evaluation,and early treatment may improve prognosis.

关键词： Congenital esophageal atresia Patent ductus arteriosus Low weight One-stage operation Case report

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论新质生产力与物质文明新形态的内在统一

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毛泽东邓小平理论研究 2024年第2期 1-7,108页

作者：曹泳鑫上海社会科学院马克思主义学院

站在推动构建人类文明新形态的高度加以观照,“新质生产力”并非简单指向高新科学技术发展,而是成为一项顺应科技创新和工业革命大潮、适应现代社会化大生产的多要素创新发展和能力提升的综合战略。理解“新质生产力”,不仅要着眼于生产... 详细信息

站在推动构建人类文明新形态的高度加以观照,“新质生产力”并非简单指向高新科学技术发展,而是成为一项顺应科技创新和工业革命大潮、适应现代社会化大生产的多要素创新发展和能力提升的综合战略。理解“新质生产力”,不仅要着眼于生产力,还要着眼于生产关系和体制机制等层面;不仅要着眼于科学技术,还要着眼于全要素、全方位;不仅要着眼于物质文化,还要着眼于精神文化。新时代中国特色社会主义和中国式现代化将创造人类文明新形态,发展新质生产力内在要求创造社会主义物质文明新形态。中国“新质生产力”所包含的“物质文化”和“精神文化”两个层面,共同推进构建人类文明新形态,助推中国式现代化行稳致远。

关键词：新质生产力物质文明新形态人类文明新形态

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Landscape of human organoids:Ideal model in clinics and research

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The Innovation 2024年第3期5卷 146-164页

作者： xinxin Han Chunhui Cai Wei Deng Yanghua Shi Lanyang Li Chen Wang Jian Zhang Mingjie Rong Jiping Liu Bangjiang Fang Hua He Xiling Liu Chuxia Deng Xiao He xin cao Organ Regeneration X Lab Lisheng East China Institute of BiotechnologyPeking UniversityJiangsu 226200China Shanghai Lisheng Biotech Shanghai 200092China LongHua Hospital Shanghai University of Traditional Chinese Medicine725 Wanping South RoadXuhui DistrictShanghai 200032China Department of Oncology Shanghai Ninth People’s HospitalShanghai Jiao Tong University School of MedicineShanghai 200125China Department of Neurosurgery Third Affiliated HospitalNaval Medical UniversityShanghai 200438China Shanghai Key Laboratory of Forensic Medicine Shanghai Forensic Service PlatformAcademy of Forensic ScienceMinistry of JusticeShanghai 200063China Cancer Center Faculty of Health SciencesUniversity of MacaoTaipaMacao SARChina Ministry of Education Frontiers Science Center for Precision Oncology University of MacaoTaipaMacao SAR 999078China CAS Key Lab for Biomedical Effects of Nanomaterials and Nanosafety Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Zhongshan Hospital Institute of Clinical Science Fudan University Shanghai Medical CollegeShanghai 200032China

In the last decade,organoid research has entered a golden era,signifying a pivotal shift in the biomedical *** year 2023 marked a milestone with the publication of thousands of papers in this arena,reflecting exponential ***,amid this burgeoning expansion,a comprehensive and accurate overview of the field has been conspicuously *** review is intended to bridge this gap,providing a panoramic view of the rapidly evolving organoid *** meticulously analyze the organoid field from eight distinctive vantage points,harnessing our rich experience in academic research,industrial application,and clinical *** present a deep exploration of the advances in organoid technology,underpinned by our long-standing involvement in this *** narrative traverses the historical genesis of organoids and their transformative impact across various biomedical sectors,including oncology,toxicology,and drug *** delve into the synergy between organoids and avant-garde technologies such as synthetic biology and single-cell omics and discuss their pivotal role in tailoring personalized medicine,enhancing high-throughput drug screening,and constructing physiologically pertinent disease *** comprehensive analysis and reflective discourse provide a deep dive into the existing landscape and emerging trends in organoid *** spotlight technological innovations,methodological evolution,and the broadening spectrum of applications,emphasizing the revolutionary influence of organoids in personalized medicine,oncology,drug discovery,and other *** ahead,we cautiously anticipate future developments in the field of organoid research,especially its potential implications for personalized patient care,new avenues of drug discovery,and clinical *** trust that our comprehensive review will be an asset for researchers,clinicians,and patients with keen interest in personalized medical *** offer a broad view of the

关键词： landscape intended advances

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农村宅基地制度改革研究的回顾与展望

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中南民族大学学报（人文社会科学版） 2024年第4期44卷 143-151,222页

作者：毛铖曹迎新湖北省社会科学院中国三农问题研究中心湖北武汉430077

农村宅基地制度改革是农村“三块地”改革中的关键与难点,备受学界关注。纵观现有农村宅基地制度改革的研究,成果丰富,多重视角中的改革实践路径、多元维度中的改革影响因素、多样向度中的改革作用机制,是研究的热点关切。从小范围探索... 详细信息

农村宅基地制度改革是农村“三块地”改革中的关键与难点,备受学界关注。纵观现有农村宅基地制度改革的研究,成果丰富,多重视角中的改革实践路径、多元维度中的改革影响因素、多样向度中的改革作用机制,是研究的热点关切。从小范围探索到大范围试点,农村宅基地制度改革实践将会“由点到面”继续向前推进,并适时进入推开阶段。基于对研究现状的综合分析和对稳慎推进改革的基层实践需求的实证调查,未来有关农村宅基地制度改革的研究应当重点关注改革过程中的农民主体性参与、农村宅基地制度改革助推农业强国建设、农村宅基地制度改革助力新型农村集体经济发展与共同富裕实现,以及改革实践过程的评估与成效评价等方面的研究。

关键词：农村宅基地制度改革实践路径影响因素作用机制

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Role of the globus pallidus in motor and non-motor symptoms of Parkinson's disease

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Neural Regeneration Research 2025年第6期20卷 1628-1643页

作者： Yimiao Jiang Zengxin Qi Huixian Zhu Kangli Shen Ruiqi Liu Chenxin Fang Weiwei Lou Yifan Jiang Wangrui Yuan xin cao Liang Chen Qianxing Zhuang Department of Physiology School of MedicineNantong UniversityNantongJiangsu ProvinceChina Department of Neurosurgery Huashan HospitalShanghai Medical CollegeFudan UniversityShanghaiChina National Center for Neurological Disorders ShanghaiChina Shanghai Key Laboratory of Brain Function Restoration and Neural Regeneration ShanghaiChina State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science Institute of Brain ScienceFudan UniversityShanghaiChina

The globus pallidus plays a pivotal role in the basal ganglia circuit. Parkinson's disease is characterized by degeneration of dopamine-producing cells in the substantia nigra, which leads to dopamine deficiency in the brain that subsequently manifests as various motor and non-motor symptoms. This review aims to summarize the involvement of the globus pallidus in both motor and non-motor manifestations of Parkinson's disease. The firing activities of parvalbumin neurons in the medial globus pallidus, including both the firing rate and pattern, exhibit strong correlations with the bradykinesia and rigidity associated with Parkinson's disease. Increased beta oscillations, which are highly correlated with bradykinesia and rigidity, are regulated by the lateral globus pallidus. Furthermore,bradykinesia and rigidity are strongly linked to the loss of dopaminergic projections within the cortical-basal ganglia-thalamocortical loop. Resting tremors are attributed to the transmission of pathological signals from the basal ganglia through the motor cortex to the cerebellum-ventral intermediate nucleus circuit. The cortico–striato–pallidal loop is responsible for mediating pallidi-associated sleep disorders. Medication and deep brain stimulation are the primary therapeutic strategies addressing the globus pallidus in Parkinson's disease. Medication is the primary treatment for motor symptoms in the early stages of Parkinson's disease, while deep brain stimulation has been clinically proven to be effective in alleviating symptoms in patients with advanced Parkinson's disease,particularly for the movement disorders caused by levodopa. Deep brain stimulation targeting the globus pallidus internus can improve motor function in patients with tremordominant and non-tremor-dominant Parkinson's disease, while deep brain stimulation targeting the globus pallidus externus can alter the temporal pattern of neural activity throughout the basal ganglia–thalamus network. Therefore, the comp

关键词： anxiety basal ganglia bradykinesia deep brain stimulation depression globus pallidus externus globus pallidus internus lateral globus pallidus medial globus pallidus neural circuit Parkinson's disease

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省属高校高分子材料与工程专业《塑料成型与模具设计》本科教学的理解和创新

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高分子通报 2024年第7期37卷 988-992页

作者：曹新秀樊慧湖南科技大学材料科学与工程学院湘潭411201

《塑料成型与模具设计》是高分子材料与工程专业的一门专业选修课,在实际教学中,面临着学生的基础知识不足、学习时间较少、重视程度和学习兴趣不高、教师对生产实际不熟悉等难题。针对这些问题,我们首先从高分子专业人才培养的角度,认... 详细信息

《塑料成型与模具设计》是高分子材料与工程专业的一门专业选修课,在实际教学中,面临着学生的基础知识不足、学习时间较少、重视程度和学习兴趣不高、教师对生产实际不熟悉等难题。针对这些问题,我们首先从高分子专业人才培养的角度,认为“理解塑料成型的基础知识,并将其用于指导塑料制品的设计和模具的设计”为本课程教学的核心,并据此确定教学要求。随后,通过建设虚拟仿真实验平台、采用多元的教学手段和布置递进的考核任务等措施,弥补理论教学与生产实际相脱节和教师对生产实际不熟悉等不足、降低学生的学习难度、提高学生的学习兴趣和效率、锻炼学生的知识应用能力、激发学生的想象能力、增强课程间的连贯性。课程的开设完成了既定的教学要求,得到了校级督导老师和学生的好评。我们的教学理解和创新对本专业或类似专业的其他选修课程具有一定的借鉴意义。

关键词：高分子材料与工程塑料成型与模具设计理解创新虚拟仿真

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