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基于HT-STWLS的配电网PMU设计

电子器件 2024年第5期47卷 1396-1402页

作者：于泽龙丁仁杰刘斌李曙光王长江国网内蒙古东部电力有限公司通辽供电公司内蒙古通辽028000 东北电力大学电气工程学院吉林吉林132012

随着分布式能源和可调负荷大量接入配电网,其随机性和间歇性增加了配电网信号量测的难度,同时配电网存在节点分支类型变化多、通信条件受限等不确定因素,使相量量测单元(PMU)在配电网中应用受到限制。针对配电网节点多分支特点和量测估... 详细信息

随着分布式能源和可调负荷大量接入配电网,其随机性和间歇性增加了配电网信号量测的难度,同时配电网存在节点分支类型变化多、通信条件受限等不确定因素,使相量量测单元(PMU)在配电网中应用受到限制。针对配电网节点多分支特点和量测估计高精度要求等问题,提出了基于HT-STWLS的新型配电网同步量测单元,并搭建了实验装置。首先,该装置采用多核分布式结构,通过网络路由模式,能够有效解决节点多分支量测问题,增强节点边缘计算能力;然后,对装置采集信号进行希尔伯特变换(HT)处理后,将数据代入到对称泰勒加权最小二乘(STWLS)过程中进行信号参数估计,获取高精度基波参数值;最后,通过算法验证和实际电网信号的测试,表明所提装置的HT-STWLS算法能够实现配电网信号参数的高精度估计。

关键词：相量量测单元节点多分支高精度多核分布式

Oxalic acid cross-linked sodium alginate and carboxymethyl chitosan hydrogel membrane for separation of dye/NaCl at high NaCl concentration

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Chinese Chemical Letters 2022年第4期33卷 1951-1955页

作者： Wenbin Xie Kongyin Zhao Lijing Xu Ningning Gao Hui Zhao zelong Gong Linan yu Jun Jiang State Key Laboratory of Separation Membranes and Membrane Processes/National Centre for International Joint Research on Separation Membranes Tiangong UniversityTianjin 300387China SINOPEC Research Institute of Petroleum Processing Beijing 100083China

Dye desalination is a challenge in the treatment of textile wastewater with high salt concentration. It is imperative to develop salt resistance membrane that is from sustainable materials to effectively treat dye/salt mixtures. And most polymer membrane materials are non-renewable petrochemical *** this paper, a green hydrogel membrane(CMCS-OA-Na Alg) was prepared by non-metallic ions of oxalic acid(OA) cross-linking of two natural macromolecules of sodium alginate(Na Alg) and carboxymethyl chitosan(CMCS). The membrane showed excellent anti-swelling at high salt concentration(swelling rate less than 8.0% in 10.0 wt% Na Cl solution) and good anti-fouling performance. The membrane exhibited a rejection higher than 95.0% for dyes(bright blue, direct black, direct red, and Congo red) and lower than7.0% for Na Cl, which can achieve better dye/Na Cl separation performance. This study provides a promising membrane material for high salt textile wastewater treatment only using water and carbohydrates as raw materials without any organic solvents.

关键词： Hydrogel filtration membranes Oxalic acid Sodium alginate High salt wastewater Salt resistance

Text GCN-SW-KNN:a novel collaborative training multi-label classification method for WMS application themes by considering geographic semantics

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Big Earth Data 2021年第1期5卷 66-89页

作者： Zhengyang Wei Zhipeng Gui Min Zhang zelong Yang yuao Mei Huayi Wu Hongbo Liu Jing yu School of Remote Sensing and Information Engineering Wuhan UniversityWuhanChina State Key Laboratory of Information Engineering in Surveying Mapping and Remote SensingWuhan UniversityWuhanChina Collaborative Innovation Center of Geospatial Technology Wuhan UniversityWuhanChina Information Technology Department Chongqing Geomatics and Remote Sensing CenterChongqingChina

Without explicit description of map application themes,it is difficult for users to discover desired map resources from massive online Web Map Services(WMS).However,metadata-based map application theme extraction is a challenging multi-label text classification task due to limited training samples,mixed vocabularies,variable length and content arbitrariness of text *** this paper,we propose a novel multi-label text classification method,Text GCN-SW-KNN,based on geographic semantics and collaborative training to improve classifica-tion *** semi-supervised collaborative training adopts two base models,i.e.a modified Text Graph Convolutional Network(Text GCN)by utilizing Semantic Web,named Text GCN-SW,and widely-used Multi-Label K-Nearest Neighbor(ML-KNN).Text GCN-SW is improved from Text GCN by adjusting the adjacency matrix of the heterogeneous word document graph with the shortest semantic distances between themes and words in metadata *** distances are calculated with the Semantic Web of Earth and Environmental Terminology(SWEET)and WordNet *** on both the WMS and layer metadata show that the proposed methods can achieve higher F1-score and accuracy than state-of-the-art baselines,and demonstrate better stability in repeating experiments and robustness to less training *** GCN-SW-KNN can be extended to other multi-label text classification scenario for better supporting metadata enhancement and geospatial resource discovery in Earth Science domain.

关键词： Web map service multi-label text classification semantic distance text graph convolutional network collaborative training MLKNN application theme extraction

Supramolecular self-assembly of EGCG-selenomethionine nanodrug for treating osteoarthritis

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Bioactive Materials 2024年第2期32卷 164-176页

作者： Haichao yu zelong Song Jie yu Boyuan Ren yuan Dong Yonggang You Zhen Zhang Chengqi Jia yunpeng Zhao Xuhui Zhou Haifeng Sun Xuesong Zhang School of Medicine Nankai UniversityTianjin 300071China Department of Orthopaedics The Fourth Medical Center of PLA General HospitalBeijing 100048China School of Radiology Shandong First Medical University and Shandong Academy of Medical SciencesShandong271016China Department of Orthopaedics Changzheng HospitalSecond Military Medical University(Naval Medical University)Shanghai200003China Department of Orthopaedics Qilu HospitalCheeloo College of MedicineShandong UniversityShandong250012China Peking Union Medical College Hospital Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Beijing Institute of Radiation Medicine Beijing 100850China Department of Orthopedics Beijing Jishuitan HospitalBeijing 100035China

Osteoarthritis(OA)has emerged as a significant health concern among the elderly population,with increasing attention paid to ferroptosis-induced OA in recent ***,the prolonged use of nonsteroidal anti-inflammatory drugs or corticosteroids can lead to a series of side effects and limited therapeutic *** study aimed to employ the Mannich condensation reaction between epigallocatechin-3-gallate(EGCG)and selenomethionine(SeMet)to efficiently synthesize polyphenol-based nanodrugs in aqueous media for treating *** biology experiments demonstrated that EGCG-based nanodrugs(ES NDs)could effectively reduce glutathione peroxidase 4(GPX4)inactivation,abnormal Fe2+accumulation,and lipid peroxidation induced by oxidative stress,which ameliorated the metabolic disorder of chondrocytes and other multiple pathological processes triggered by ***,imaging and histopathological analysis of the destabilization of the medial meniscus model in mice confirmed that ES NDs exhibiting significant therapeutic effects in relieving *** intra-articular delivery of ES NDs represents a promising approach for treating OA and other joint inflammatory diseases.

关键词： Osteoarthritis Ferroptosis Natural product Nanodrug Antioxidants

Exploration of the Review Standards of Safety Assessment Reports for Ordinary Cosmetics

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China Detergent & Cosmetics 2024年第4期9卷 18-29页

作者： Yang yumei Qi Dongmei Li Rui Liu zelong yu Chunyuan Beijing Center for Cosmetic Evaluation and Inspection China

Cosmetic safety assessment has distinct characteristics of interdisciplinary and extensive intersection,intensive technical knowledge,and high professional *** is confronted with problems such as a lack of professional safety assessment personnel and review personnel for cosmetic safety *** compliance of safety assessment reports has become one of the important factors affecting the process of cosmetic filing and *** article contains the comprehensive analysis on the requirements of relevant regulations and technical documents for cosmetic safety assessment,as well as the judgment principles,and specific requirements of safety assessment *** key issues in current cosmetic safety assessment and the safety assessment requirements for typical products also are being focused on,so as to help standardize and unify the review standards of cosmetic safety assessment report,and provide reference for cosmetic filers.

关键词： ordinary cosmetics safety assessment review standards typical product

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考虑假货入侵的零售商信息共享策略研究

系统工程理论与实践 2021年第12期41卷 3212-3231页

作者：余明珠高琦弋泽龙余乐安深圳大学管理学院深圳518060 深圳大学土木与交通工程学院深圳518060 深圳大学经济学院深圳518060 北京化工大学经济与管理学院北京100029

本文研究了由单供应商和单零售商组成的正品供应链中,零售商的信息共享决策以及假货的入侵对正品供应链绩效的影响.通过构建Stackelberg博弈模型分析了不同情形下供应商的最优批发价格、零售商的最优订货量和假货商的最优生产量.并探讨... 详细信息

本文研究了由单供应商和单零售商组成的正品供应链中,零售商的信息共享决策以及假货的入侵对正品供应链绩效的影响.通过构建Stackelberg博弈模型分析了不同情形下供应商的最优批发价格、零售商的最优订货量和假货商的最优生产量.并探讨了零售商在不同假货入侵情形下关于信息共享的最优决策.通过理论分析和数值研究发现,当假货商入侵成本处于中等,假货的产品替代率较大时,零售商才会愿意与上游供应商共享信息.在这种情况下,假货商促进了正品供应链的信息透明,假货商的入侵会降低正品供应链的利润.

关键词：零售商信息共享假货入侵 Stackelberg博弈均衡决策

NLRP3-dependent pyroptosis is required for HIV-1 gp120- induced neuropathology

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Cellular & Molecular Immunology 2020年第3期17卷 283-299页

作者： Xiaolong He Weijun Yang Zhijie Zeng Yi Wei Jie Gao Bao Zhang Li Li Liqun Liu yu Wan Qing Zeng zelong Gong Liting Liu Hanyun Zhang yubin Li Shaojie Yang Tongtong Hu Lixian Wu Eliezer Masliah Shenghe Huang Hong Cao Department of Microbiology Guangdong Provincial Key Laboratory of Tropical Disease ResearchSchool of Public HealthSouthern Medical UniversityGuangzhou 510515China Kunming Key Laboratory of Children Infection and Immunity Yunnan Institute of PediatricsKunming Children’s HospitalKunmingYunnan 650228China Department of Pediatrics The Second Xiangya HospitalCentral South UniversityChangsha 410011China Department of Medical Microbiology and Immunology Dali UniversityDali 671000China Division of Neurosciences National Institute on AgingNational Institutes of HealthBethesdaMD 20892USA Departments of Neuroscience and Pathology University of CaliforniaSan DiegoLa JollaCA 92093USA Saban Research Institute Children’s Hospital Los AngelesUniversity of Southern CaliforniaLos AngelesCA 90027USA

The human immunodeficiency virus-1(HIV-1)envelope protein gp120 is the major contributor to the pathogenesis of HIVassociated neurocognitive disorder(HAND).Neuroinflammation plays a pivotal role in gp120-induced neuropathology,but how gp120 triggers neuroinflammatory processes and subsequent neuronal death remains ***,we provide evidence that NLRP3 is required for gp120-induced neuroinflammation and *** results showed that gp120-induced NLRP3-dependent pyroptosis and IL-1βproduction in *** of microglial NLRP3 inflammasome activation alleviated gp120-mediated neuroinflammatory factor release and neuronal ***,we showed that chronic administration of MCC950,a novel selective NLRP3 inhibitor,to gp120 transgenic mice not only attenuated neuroinflammation and neuronal death but also promoted neuronal regeneration and restored the impaired neurocognitive *** conclusion,our data revealed that the NLRP3 inflammasome is important for gp120-induced neuroinflammation and neuropathology and suggest that NLRP3 is a potential novel target for the treatment of HAND.

关键词： NLRP3 inflammasome HIV-1 gp120 HIV-associated neurocognitive disorder Neuroinflammation Neuropathology

Experimental research on spinal metastasis with mouse models

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Chinese Medical Journal 2023年第24期136卷 3008-3009页

作者： Kun Zhang Yi Feng Xiaochen Qiao Yang yu zelong Song Zhuohao Liu Zhi Tian Song Chen Xuesong Zhang Xiangyu Wang Second Clinical Medical College Shanxi Medical UniversityTaiyuanShanxi 030001China Department of Orthopedics The Second Hospital of Shanxi Medical UniversityShanxi Key laboratory of Bone and Soft Tissue Injury RepairTaiyuanShanxi 030001China Department of Orthopedics JinZhong Hospital Affiliated to Shanxi Medical UniversityJinzhongShanxi 030600China Nankai University School of Medicine Nankai UniversityTianjin 300071China Department of Orthopaedics the PLA General HospitalBeijing 100853China Department of Pain medicine First Medical Centerthe PLA General HospitalBeijing 100853China

To the Editor:The spine is a common site for tumor *** with spinal metastases have pain,pathological fractures and spinal deformities owing to the tumor invasion of spinal *** present,the mouse model is a very important tool for spinal metastases-related studies.[1]It is crucial to elucidate the pathophysiological mechanism underlying spinal metastases,improve the diagnosis and treatment guidelines,and develop new therapeutic *** this study,we have summarized various mouse spinal metastasis models and the applicable research contents.

关键词： metastasis invasion diagnosis

基于周期性加热模式的激光消融组织效果快速预测及优化设计方法

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中国激光 2024年第15期51卷 152-161页

作者：肖玉张泽龙简梦华董威上海交通大学机械与动力工程学院上海200240

激光消融技术以其高精度、强可控性和微创性等优势,在癌症治疗领域中展现出广阔的应用前景。为确保在肿瘤组织被完全消融的同时,激光消融技术对正常组织的热损伤最小,提出了一种基于周期性加热模式的辐照参数优化设计方法。首先,建立激... 详细信息

激光消融技术以其高精度、强可控性和微创性等优势,在癌症治疗领域中展现出广阔的应用前景。为确保在肿瘤组织被完全消融的同时,激光消融技术对正常组织的热损伤最小,提出了一种基于周期性加热模式的辐照参数优化设计方法。首先,建立激光消融过程中生物传热和热损伤的数值模拟模型,通过实验验证该模型的准确性。随后,利用径向基函数神经网络建立激光消融效果预测模型,以快速、精准地评估正常组织的不可逆热损伤体积、不可逆热损伤总体积,以及肿瘤组织表面的平均温度。最后,采用遗传算法开展激光消融技术的单目标优化设计,在肿瘤组织完全消融和肿瘤组织表面的平均温度不超过70℃的前提下,正常组织的不可逆热损伤体积仅占不可逆热损伤总体积的0.053%,实现了激光消融技术对正常组织的不可逆热损伤的最小化目标。

关键词：激光消融辐照参数热损伤神经网络遗传算法