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Short-Term Household Load Forecasting Based on Attention Mechanism and CNN-ICPSO-LSTM

Energy Engineering 2024年第6期121卷 1473-1493页

作者： Lin Ma Liyong Wang Shuang Zeng Yutong Zhao Chang Liu heng zhang Qiong Wu Hongbo Ren New Energy Technology Center State Grid Beijing Electric Power Research InstituteBeijing100075China College of Energy and Mechanical Engineering Shanghai University of Electric PowerShanghai200090China

Accurate load forecasting forms a crucial foundation for implementing household demand response plans andoptimizing load scheduling. When dealing with short-term load data characterized by substantial fluctuations,a single prediction model is hard to capture temporal features effectively, resulting in diminished predictionaccuracy. In this study, a hybrid deep learning framework that integrates attention mechanism, convolution neuralnetwork (CNN), improved chaotic particle swarm optimization (ICPSO), and long short-term memory (LSTM), isproposed for short-term household load forecasting. Firstly, the CNN model is employed to extract features fromthe original data, enhancing the quality of data features. Subsequently, the moving average method is used for datapreprocessing, followed by the application of the LSTM network to predict the processed data. Moreover, the ICPSOalgorithm is introduced to optimize the parameters of LSTM, aimed at boosting the model’s running speed andaccuracy. Finally, the attention mechanism is employed to optimize the output value of LSTM, effectively addressinginformation loss in LSTM induced by lengthy sequences and further elevating prediction accuracy. According tothe numerical analysis, the accuracy and effectiveness of the proposed hybrid model have been verified. It canexplore data features adeptly, achieving superior prediction accuracy compared to other forecasting methods forthe household load exhibiting significant fluctuations across different seasons.

关键词： Short-term household load forecasting long short-term memory network attention mechanism hybrid deep learning framework

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Differences between two methods to derive a nonlinear Schrödinger equation and their application scopes

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Chinese Physics B 2024年第2期33卷 421-429页

作者：陈羽西张恒段文山 College of Physics and Electronic Engineering Northwest Normal UniversityLanzhou 730070China

The present paper chooses a dusty plasma as an example to numerically and analytically study the differences between two different methods of obtaining nonlinear Schrödinger equation(NLSE).The first method is to derive a Korteweg–de Vries(KdV)-type equation and then derive the NLSE from the KdV-type equation,while the second one is to directly derive the NLSE from the original *** is found that the envelope waves from the two methods have different dispersion relations,different group *** results indicate that two envelope wave solutions from two different methods are completely *** results also show that the application scope of the envelope wave obtained from the second method is wider than that of the first one,though both methods are valuable in the range of their corresponding application *** is suggested that,for other systems,both methods to derive NLSE may be correct,but their nonlinear wave solutions are different and their application scopes are also different.

关键词： dusty plasmas nonlinear waves particle-in-cell simulation

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Dual-Mode Resonant Sectorial Monopole Antenna with Stable Backfire Gain

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Chinese Journal of Electronics 2024年

作者： Feiyan JI heng zhang Xiuqiong XING Wenjun LU Lei ZHU Jiangsu Key Laboratory of Wireless Communications Nanjing University of Posts and Telecommunications Key Laboratory of Wireless Sensor Network & Communication Shanghai Institute of Microsystem and Information TechnologyChinese Academy of Sciences Department of Electrical and Computer Engineering Faculty of Science and Technology University of Macau

A novel design approach to wideband, dual-mode resonant monopole antenna with stable, enhanced backfire gain is advanced. The sectorial monopole evolves from a linear, 0.75-wavelength electric prototype monopole under wideband dual-mode resonant operation. As theoretically predicted by the two resonant modes TE9/5,1and experimentally validated at 2.4-GHz band, the designed antenna exhibits a wide impedance bandwidth over 90.1%(i.e., 2.06-5.44 GHz), in which the stable gain bandwidth in the backfire,-x-direction(θ = 90°, φ = 180°) with peak value of 3.2 dBi and fluctuation less than 3 dB is up to 45.3%(i.e., 3.74-5.44 GHz). It is concluded that the stable wideband backfire gain frequency response should be owing to the high-order resonant mode in the unique sectorial monopole antennas.

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Tennis ball cord combined with endoscopy for giant gastric phytobezoar:A case report

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World Journal of Clinical Cases 2024年第18期12卷 3603-3608页

作者： Juan Shu heng zhang Department of Gastroenterology The Central Hospital of WuhanTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430014Hubei ProvinceChina

BACKGROUND Due to the specificity of Chinese food types,gastric phytobezoars are relatively common in *** gastric phytobezoars can be removed by chemical enzyme lysis and endoscopic fragmentation,but the treatment for large phytobezoars is limited,and surgical procedures are often required for this difficult *** SUMMARY For giant gastric phytobezoars that cannot be dissolved and fragmented by conventional treatment,we have invented a new lithotripsy technique(tennis ball cord combined with endoscopy)for these *** non-interventional treatment was successful in a patient whose abdominal pain was immediately relieved,and the gastroscope-induced ulcer healed well 3 d after *** patient was followed-up for 8 wk postoperatively and showed no discomfort such as abdominal *** The combination of tennis ball cord and endoscopy for the treatment of giant gastric phytobezoars is feasible and showed high safety and effectiveness,and can be widely applied in hospitals of all sizes.

关键词： Tennis ball cord Endoscopy Giant gastric phytobezoar Case report

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Advances in cytokine-mediated mechanisms for cardiac regeneration and repair post-myocardial infarction:a comprehensive review

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Pharmacology Discovery 2024年第3期4卷 30-35页

作者： Zi-heng zhang Yang Yang College of Life Sciences Xinjiang UniversityUrumqi 830046China Clinical Systems Biology Laboratories The First Affiliated Hospital of Zhengzhou UniversityZhengzhou 450052China

Cardiovascular disease(CVD)has become the leading cause of death globally,imposing significant health and economic *** these,myocardial infarction(MI)is a predominant cause of *** animal studies have shown that cytokines participate in cardiac regeneration and repair by modulating cellular proliferation,differentiation,and apoptosis ***,we explored the crucial role of cytokines in cardiac regeneration and repair processes in experimental animal models,detailing how cytokines modulate cellular mechanisms involved in repairing cardiac tissue post myocardial infarction(MI).Specifically,it highlights the activation of cardiac stem cells and progenitors,the regulation of inflammatory responses to prevent excessive damage,and the involvement in matrix remodeling to ensure functional integrity of the *** comprehensive examination underscores the therapeutic potential of enhancing cytokine secretion to mitigate adverse effects and promote recovery following MI,offering insights into possible interventions that could improve patient outcomes in clinical settings.

关键词： cytokines myocardial infarction experimental animal model promotion of cytokine release

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A genetic variant in the immune-related gene ERAP1 affects colorectal cancer prognosis

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Chinese Medical Journal 2024年第4期137卷 431-440页

作者： Danyi Zou Yimin Cai Meng Jin Ming zhang Yizhuo Liu Shuoni Chen Shuhui Yang heng zhang Xu Zhu Chaoqun Huang Ying Zhu Xiaoping Miao Yongchang Wei Xiaojun Yang Jianbo Tian Department of Clinical Laboratory Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430022China Department of Epidemiology and Biostatistics School of Public HealthTaiKang Center for Life and Medical SciencesWuhan UniversityWuhanHubei 430071China Department of Gastrointestinal Oncology Zhongnan Hospital of Wuhan UniversityWuhanHubei 430071China Department of Oncology Tongji HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubei 430030China Department of Gastrointestinal Surgery Renmin Hospital of Wuhan UniversityWuhanHubei 430071China Department of Gastrointestinal Surgery Zhongnan Hospital of Wuhan UniversityWuhan UniversityWuhanHubei 430071China Department of Epidemiology and Biostatistics School of Public HealthTongji Medical CollegeHuazhong University of Sciences and TechnologyWuhanHubei 430030China Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine Nanjing Medical UniversityNanjingJiangsu 211166China

Background:Findings on the association of genetic factors and colorectal cancer(CRC)survival are limited and inconsistent,and revealing the mechanism underlying their prognostic roles is of great *** study aimed to explore the relationship between functional genetic variations and the prognosis of CRC and further reveal the possible ***:We first systematically performed expression quantitative trait locus(eQTL)analysis using The Cancer Genome Atlas(TCGA)***,the Kaplan-Meier analysis was used to filter out the survival-related eQTL target genes of CRC patients in two public datasets(TCGA and GSE39582 dataset from the Gene Expression Omnibus database).The seven most potentially functional eQTL single nucleotide polymorphisms(SNPs)associated with six survival-related eQTL target genes were genotyped in 907 Chinese CRC patients with clinical prognosis *** regulatory mechanism of the survival-related SNP was further confirmed by functional ***:The rs71630754 regulating the expression of endoplasmic reticulum aminopeptidase 1(ERAP1)was significantly associated with the prognosis of CRC(additive model,hazard ratio[HR]:1.43,95%confidence interval[CI]:1.08-1.88,P=0.012).The results of dual-luciferase reporter assay and electrophoretic mobility shift assay showed that the A allele of the rs71630754 could increase the binding of transcription factor 3(TCF3)and subsequently reduce the expression of *** results of bioinformatic analysis showed that lower expression of ERAP1 could affect the tumor immune microenvironment and was significantly associated with severe survival ***:The rs71630754 could influence the prognosis of CRC patients by regulating the expression of the immune-related gene *** Registration:***00454519(https://***/)

关键词： Colorectal cancer Prognosis Genetic variation Quantitative trait loci TCF3 rs71630754 Single nucleotide polymorphisms

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Insights into the electron transfer mechanisms of peroxydisulfate activation by modified metal-free acetylene black for degradation of sulfisoxazole

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Chinese Chemical Letters 2024年第8期35卷 349-356页

作者： Chunxiu Yu Zelin Wu Hongle Shi Lingyun Gu Kexin Chen Chuan-Shu He Yang Liu heng zhang Peng Zhou Zhaokun Xiong Bo Lai State Key Laboratory of Hydraulics and Mountain River Engineering College of Architecture and EnvironmentSichuan UniversityChengdu 610065China Sichuan Academy of Eco-Environmental Sciences Chengdu 610041China Sino-German Centre for Water and Health Research Sichuan UniversityChengdu 610065China

Herein,a modified metal-free acetylene black(MMF-AB)catalyst was synthesized by a simple solvothermal-calcination method and designed successfully to activate peroxodisulfate(PDS)for the degradation of sulfisoxazole(SIZ).Due to the doping of N,S and O metal-free elements,the modified catalyst showed excellent catalytic performance with 100%SIZ removal within 30 *** first-order reaction rate constants(evaluating catalytic efficiencies and activity)of MMF-AB(kobs=0.105 min^(−1))was 3 times higher than pure-AB(k_(obs)=0.029 min^(−1)).Interestingly,it was demonstrated that the reaction sys-tem is based on the transfer of electrons from SIZ to PDS to realize an electron-transfer-based mechanism by the evidence of premixing,electron paramagnetic resonance(EPR)spectroscopy,salt-bridge experi-ments and electrochemical *** introduction of recyclable filtration device solved the secondary pollution caused by the dispersion of the powdered catalyst in the treated water,which further proved the practicality and superiority of the MMF-AB catalyst.

关键词： Peroxydisulfate Sulfisoxazole Acetylene black Electrochemical Electron transfer

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Downregulation of Serum PTEN Expression in Mercury-Exposed Population and PI3K/AKT Pathway-Induced Inflammation

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Biomedical and Environmental Sciences 2024年第4期37卷 354-366页

作者： MEI Peng DING En Min YIN Hao Yang DING Xue Xue WANG Huan WANG Jian Feng HAN Lei zhang heng Dong ZHU Bao Li School of Public Health Nanjing Medical UniversityNanjing 210000JiangsuChina Institute of Occupational Disease Prevention Jiangsu Province Center for Disease Prevention and ControlNanjing 21000JiangsuChina Suzhou Center for Disease Prevention and Control Suzhou 215004JiangsuChina Center for Global Health School of Public HealthNanjing Medical UniversityNanjing 210000JiangsuChina

Objective This study investigated the impact of occupational mercury(Hg) exposure on human gene transcription and expression, and its potential biological *** Differentially expressed genes related to Hg exposure were identified and validated using gene expression microarray analysis and extended validation. Hg-exposed cell models and PTEN lowexpression models were established in vitro using 293T cells. PTEN gene expression was assessed using qRT-PCR, and Western blotting was used to measure PTEN, AKT, and PI3K protein levels. IL-6 expression was determined by *** Combined findings from gene expression microarray analysis, bioinformatics, and population expansion validation indicated significant downregulation of the PTEN gene in the high-concentration Hg exposure group. In the Hg-exposed cell model(25 and 10 μmol/L), a significant decrease in PTEN expression was observed, accompanied by a significant increase in PI3K, AKT, and IL-6 ***, a low-expression cell model demonstrated that PTEN gene knockdown led to a significant decrease in PTEN protein expression and a substantial increase in PI3K, AKT, and IL-6 *** This is the first study to report that Hg exposure downregulates the PTEN gene, activates the PI3K/AKT regulatory pathway, and increases the expression of inflammatory factors, ultimately resulting in kidney inflammation.

关键词： PTEN Occupational mercury exposure Occupational health PI3K/AKT pathway 293T cell IL-6

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MKEAH:Multimodal knowledge extraction and accumulation based on hyperplane embedding for knowledge-based visual question answering

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虚拟现实与智能硬件（中英文） 2024年第4期6卷 280-291页

作者： heng zhang Zhihua WEI Guanming LIU Rui WANG Ruibin MU Chuanbao LIU Aiquan YUAN Guodong CAO Ning HU Tongji University Shanghai 2000092China Alibaba Group Shanghai 200030China

Background External knowledge representations play an essential role in knowledge-based visual question and answering to better understand complex scenarios in the open *** entity-relationship embedding approaches are deficient in representing some complex relations,resulting in a lack of topic-related knowledge and redundancy in topic-irrelevant *** To this end,we propose MKEAH:Multimodal Knowledge Extraction and Accumulation on *** ensure that the lengths of the feature vectors projected onto the hyperplane compare equally and to filter out sufficient topic-irrelevant information,two losses are proposed to learn the triplet representations from the complementary views:range loss and orthogonal *** interpret the capability of extracting topic-related knowledge,we present the Topic Similarity(TS)between topic and *** Experimental results demonstrate the effectiveness of hyperplane embedding for knowledge representation in knowledge-based visual question *** model outperformed state-of-the-art methods by 2.12%and 3.24%on two challenging knowledge-request datasets:OK-VQA and KRVQA,*** The obvious advantages of our model in TS show that using hyperplane embedding to represent multimodal knowledge can improve its ability to extract topic-related knowledge.

关键词： Knowledge-based visual question answering Hyperplane Topic-related

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First SHRIMP zircon U-Pb dating constraints for the Ediacaran Wenghui Biota

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Journal of Earth Science 2024年

作者： Mingsheng Zhao Feng Tang Giovanni Mussini Yulan Li heng zhang Jianshu Chen Linzhi Gao Department of Earth Sciences， University of Cambridge State Key Laboratory of Palaeobiology and Stratigraphy (Nanjing Institute of Geology and Palaeontology， CAS) 111 Geological Brigade， Guizhou Bureau of Geology and Mineral Resources College of Paleontology， Shenyang Normal University Institute of Geology， Chinese Academy of Geological Sciences Guizhou Geological Survey

The Ediacaran period records a significant turning point in the evolution of life on Earth， witnessing the rise to ecological dominance of macroscopic tissue-grade organisms. The Wenghui biota from the Doushantuo Formation of South China hosts abundant multicellular algal macrofossils and problematica， some of which might be closely related to taxa from classic late Ediacaran assemblages from South Australia and the White Sea biota of Russia. However， a lack of well-resolved isotopic age estimates has hampered efforts to constrain the timing of appearance of the Wenghui biota， obfuscating its significance to our understanding of Ediacaran macroevolution in the aftermath of the Snowball Earth events. Here， we present the first SHRIMP zircon U-Pb dating results for samples obtained from a laminated tuff ash layer at the base of the Wenghui biota in the Doushantuo Formation， Jiangkou County， Tongren City， Guizhou Province， China. Our analyses yield an age of 595.4 ± 5.3 Ma for the first appearance of Wenghui biota， suggesting that its appearance postdated that of the Lantian- and Weng’an biotas， but preceded that of the Miaohe biota. These newly obtained age proxies offer an independent test of previous isotopic estimates for the age of the Wenghui biota， providing new chronostratigraphic evidence to map the succession of Ediacaran fossil assemblages on the Yangtze Platform during the Doushantuo interval. These data suggest that the Lantian， Weng’an， Wenghui， and Miaohe biotas may record a sequence of biotic assemblages attesting to successive phases in the radiation of Ediacaran macroscopic organisms， particularly macroalgae.

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