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Study on 6-DOF active vibration-isolation system of the ultra-precision turning lathe based on GA-BP-PID control for dynamic loads

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Advances in Manufacturing 2024年第1期12卷 33-60页

作者： Bo Wang zhong jiang Pei-Da Hu Department of Precision Instrument Tsinghua UniversityBeijing100084People’s Republic of China Institute of Machinery Manufacturing Technology China Academy of Engineering PhysicsMianyang621900SichuanPeople’s Republic of China

The vibration disturbance from an external environment affects the machining accuracy of ultra-precision machining *** active vibration-isolation systems(AVIS)have been developed based on static *** a vibration-isolation load changes dynamically during ultra-precision turning lathe machining,the system parameters change,and the efficiency of the active vibration-isolation system based on the traditional control strategy *** solve this problem,this paper proposes a vibration-isolation control strategy based on a genetic algorithm-back propagation neural network-PID control(GA-BP-PID),which can automatically adjust the control parameters according to the machining ***-isolation simulations and experiments based on passive vibration isolation,a PID algorithm,and the GA-BP-PID algorithm under dynamic load machining conditions were *** experimental results demonstrated that the active vibration-isolation control strategy designed in this study could effectively attenuate vibration disturbances in the external environment under dynamic load *** design is reasonable and feasible.

关键词： Ultra-precision diamond turning lathe Active vibration isolation Six degrees of freedom Dynamic load Genetic algorithm-back propagation neural network-PID(GA-BP-PID)control

The First Reported Case of Co-Infection with Neisseria Meningitidis and Bordetella Pertussis in the Cerebrospinal Fluid Specimen of a Normal Four-Year-Old Child

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Biomedical and Environmental Sciences 2024年第4期37卷 432-435页

作者： XIA Xian LI Guo Ming TANG Yi WANG Si Quan HE Fei jiang Yong zhong YANG Hong Mei jiang Hong Lin LYU Jing MAO Ling Feng Hubei Key Laboratory of Edible Wild Plants Conservation&Utilization Hubei Normal UniversityHuangshi 430070HubeiChina Hubei Provincial Center for Disease Control and Prevention Wuhan 430079HubeiChina Joint Research Center for Molecular Diagnosis of Severe Infection in Children Binjiang Institute of Zhejiang UniversityHangzhou 310058ZhejiangChina

Pertussis is an acute and highly contagious respiratory disease caused by Bordetella pertussis(***),which occurs in people of all ages and is most dangerous for young children,especially *** introduction of whole-cell pertussis vaccines(wPVs)in the 1950s dramatically reduced the incidence of pertussis worldwide[1].However,over the past two decades,many studies have reported the resurgence of pertussis in different countries[2].Epidemiological surveillance in Hubei Province over the last 3 years revealed a clear increasing trend in the incidence of pertussis during the coronavirus disease 2019(COVID-19)epidemic.

关键词： Pertussis dangerous Hubei

Advanced Potassium-Ion Batteries with High Areal Capacity

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CCS Chemistry 2024年第4期6卷 1011-1023页

作者： Song Chen jiang zhong Hongli Deng Qiliang Wei Xiaohua Shen Xinxin Jia Shengyang Li Qiusheng Zhang Jian Zhu Bingan Lu Weiyou Yang State Key Laboratory for Chemo/Biosensing and Chemometrics College of Chemistry and Chemical EngineeringCollege of Materials Science and EngineeringCollege of Physics and ElectronicsHunan Key Laboratory of Two-Dimensional MaterialsEngineering Research Center of Advanced Catalysis of the Ministry of EducationHunan UniversityChangsha 410082 Institute of Micro/Nano Materials and Devices Ningbo University of TechnologyNingbo 315211

High areal capacity is one of the critically important points for potassium-ion batteries(PIBs)for practical applications,which relies on high areal-massloading electrodes operating at high reversible ***,it is remarkably restricted by the mechanical instability and sluggish charge transfer induced by the increased mass *** overcome such challenge,we report the rationally designed bimetallic selenides CoSe2/SnSe2 heterostructures confined in hierarchical carbon nanofibers(CSSe@CNFs),which enables the electrodes robust mechanical stability,enhanced electron transport,and reduced ion-diffusion energy barrier for facilitating reaction ***,an impressive areal mass loading up to 25.3 mg cm^(−2)was achieved,which endowed a high areal capacity of 7.58 mAh cm^(−2)for such a free-standing *** is stateof-the-art among the PIBs,exceeding that of today’s industry standard(∼3 mAh cm^(−2)for LIBs).Furthermore,it delivered long-term stability over 3700 cycles at high current density(∼2 mA cm^(−2),vs 1 mA cm^(−2)in LIBs).Moreover,the as-constructed full battery achieved a high energy density of 172.8 Wh kg-1 at 0.05 A g^(−1)with a satisfied cycle stability over 2000 cycles at 2 A g^(−1)and high reversibility with Coulombic efficiency of 100%;thus,signifying its bright future toward commercial application for advanced PIBs.

关键词： bimetal selenides heterostructure mass loading areal capacity potassium-ion battery

GATIS score for predicting the prognosis of rectal neuroendocrine neoplasms:A Chinese multicenter study of 12-year experience

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World Journal of Gastroenterology 2024年第28期30卷 3403-3417页

作者： Xin-Yu Zeng Ming zhong Guo-Le Lin Cheng-Guo Li Wei-zhong jiang Wei Zhang Li-Jian Xia Mao-Jun Di Hong-Xue Wu Xiao-Feng Liao Yue-Ming Sun Min-Hao Yu Kai-Xiong Tao Yong Li Rui Zhang Peng Zhang Department of Gastrointestinal Surgery Union HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430074Hubei ProvinceChina Department of Gastrointestinal Surgery Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200127China Department of General Surgery Peking Union Medical College HospitalPeking Union Medical CollegeBeijing 100730China Department of Colorectal Surgery Fujian Medical UniversityFuzhou 350401Fujian ProvinceChina Department of Colorectal Surgery Changhai HospitalShanghai 200433China Department of Gastrointestinal Surgery The First Affiliated Hospital of Shandong First Medical UniversityJinan 250118Shandong ProvinceChina Department of Gastrointestinal Surgery Taihe HospitalHubei University of MedicineShiyan 442099Hubei ProvinceChina Department of Gastrointestinal Surgery I Section Renmin Hospital of Wuhan UniversityWuhan 430060Hubei ProvinceChina Department of General Surgery Xiangyang Central HospitalAffiliated Hospital of Hubei University of Arts and ScienceXiangyang 441021Hubei ProvinceChina Department of Colorectal Surgery Jiangsu Province HospitalNanjing Medical UniversityNanjing 210029Jiangsu ProvinceChina Department of Gastrointestinal Surgery School of MedicineShanghai Jiao Tong UniversityShanghai 200127China Department of General Surgery Guangdong Provincial People’s HospitalGuangdong Academy of Medical SciencesGuangzhou 510080Guangdong ProvinceChina Department of Colorectal Surgery Liaoning Cancer HospitalShenyang 110042Liaoning ProvinceChina

BACKGROUND There is currently a shortage of accurate,efficient,and precise predictive instruments for rectal neuroendocrine neoplasms(NENs).AIM To develop a predictive model for individuals with rectal NENs(R-NENs)using data from a large *** Data from patients with primary R-NENs were retrospectively collected from 17 large-scale referral medical centers in *** forest and Cox proportional hazard models were used to identify the risk factors for overall survival and progression-free survival,and two nomograms were *** A total of 1408 patients with R-NENs were *** grade,T stage,tumor size,age,and a prognostic nutritional index were important risk factors for *** GATIS score was calculated based on these five *** overall survival prediction,the respective C-indexes in the training set were 0.915(95%confidence interval:0.866-0.964)for overall survival prediction and 0.908(95%confidence interval:0.872-0.944)for progression-free survival *** to decision curve analysis,net benefit of the GATIS score was higher than that of a single *** time-dependent area under the receiver operating characteristic curve showed that the predictive power of the GATIS score was higher than that of the TNM stage and pathological grade at all time *** The GATIS score had a good predictive effect on the prognosis of patients with R-NENs,with efficacy superior to that of the World Health Organization grade and TNM stage.

关键词： Rectal neuroendocrine neoplasm Nomogram Random forest Prognosis Overall survival Progression-free survival

习近平总书记关于国际传播重要论述的五维意蕴

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西北师大学报（社会科学版） 2024年第3期61卷 55-62页

作者：姜联众山西师范大学语文报社/文学院山西太原030024

面对世界百年未有之大变局和中华民族伟大复兴战略全局,习近平总书记在遵循马克思主义新闻传播观、立足国内和国际社会发展现实的基础上,充分因应促进文明交流互鉴的时代要求,着力加强和深化国际传播能力建设,提出了一系列关于国际传播... 详细信息

面对世界百年未有之大变局和中华民族伟大复兴战略全局,习近平总书记在遵循马克思主义新闻传播观、立足国内和国际社会发展现实的基础上,充分因应促进文明交流互鉴的时代要求,着力加强和深化国际传播能力建设,提出了一系列关于国际传播的重要论述。这些论述蕴含着丰富和完善国际传播理论体系建构的理论意蕴、全面提升国际传播能力总体效能的价值意蕴、充分展现国际传播工作当代特征的时代意蕴、科学提供国际传播创新策略的方法意蕴、确立并指明国际传播具体路径的实践意蕴,为我国国际传播理论与实践的发展提供了根本遵循和强劲的精神动力。

关键词：国际传播习近平重要论述五维意蕴马克思主义新闻观文化自信

SlBEL11 regulates flavonoid biosynthesis,thus fine-tuning auxin efflux to prevent premature fruit drop in tomato

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Journal of Integrative Plant Biology 2024年第4期66卷 749-770页

作者： Xiufen Dong Xianfeng Liu Lina Cheng Ruizhen Li Siqi Ge Sai Wang Yue Cai Yang Liu Sida Meng Cai-zhong jiang Chun-Lin Shi Tianlai Li Daqi Fu Mingfang Qi Tao Xu College of Horticulture Shenyang Agricultural UniversityShenyang 110866China Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province College of Horticulture ScienceZhejiang A&F UniversityHangzhou 311300China Key Laboratory for Quality and Safety Control of Subtropical Fruits and Vegetables Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang ProvinceMinistry of Agriculture and Rural AffairsCollege of Horticulture ScienceZhejiang A&F UniversityHangzhou 311300China Key Laboratory of Protected Horticulture of Ministry of Education Shenyang 110866China Crops Pathology and Genetic Research Unit United States Department of Agriculture Agricultural Research ServiceWashingtonDC 20250USA Department of Plant Sciences University of CaliforniaDavisCA 95616USA ANGENOVO Oslo 0753Norway Laboratory of Fruit Biology College of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijing 100083China

Auxin regulates flower and fruit abscission,but how developmental signals mediate auxin transport in abscission remains ***,we reveal the role of the transcription factor BEL1-LIKE HOMEODOMAIN11(SlBEL11)in regulating auxin transport during abscission in tomato(Solanum lycopersicum).SlBEL11 is highly expressed in the fruit abscission zone,and its expression increases during fruit *** of SlBEL11 expression by RNA interference(RNAi)caused premature fruit drop at the breaker(Br)and 3d post-breaker(Br+3)stages of fruit *** and metabolome analysis of SlBEL11-RNAi lines revealed impaired flavonoid biosynthesis and decreased levels of most flavonoids,especially quercetin,which functions as an auxin transport *** suggested that SlBEL11 prevents premature fruit abscission by modulating auxin efflux from fruits,which is crucial for the formation of an auxin response ***,quercetin treatment suppressed premature fruit drop in SlBEL11-RNAi *** affinity purification sequencing(DAP-seq)analysis indicated that SlBEL11 induced expression of the transcription factor gene SlMYB111 by directly binding to its *** immunoprecipitation-quantitative polymerase chain reaction and electrophoretic mobility shift assay showed that *** MYELOBLASTOSIS VIRAL ONCOGENE HOMOLOG111(SlMYB111)induces the expression of the core flavonoid biosynthesis genes SlCHS1,SlCHI,SlF3H,and SlFLS by directly binding to their *** findings suggest that the SlBEL11-SlMYB111 module modulates flavonoid biosynthesis to fine-tune auxin efflux from fruits and thus maintain an auxin response gradient in the pedicel,thereby preventing premature fruit drop.

关键词： abscission auxin flavonoid SlBEL11 tomato

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创新型城市建设与企业关键核心技术创新

当代财经 2024年第4期 113-126页

作者：姜中裕南京大学经济学院江苏南京210093

在全球竞争格局深刻演变的背景下,如何推动企业加快关键核心技术创新步伐,是政府创新治理面临的重要问题。在理论分析的基础上,将企业专利信息与国家战略性新兴产业规划相结合,测算企业关键核心技术创新绩效,并以国家创新型城市试点政... 详细信息

在全球竞争格局深刻演变的背景下,如何推动企业加快关键核心技术创新步伐,是政府创新治理面临的重要问题。在理论分析的基础上,将企业专利信息与国家战略性新兴产业规划相结合,测算企业关键核心技术创新绩效,并以国家创新型城市试点政策为准自然实验,实证检验了创新型城市建设对企业关键核心技术创新的影响效应与作用机制。研究结果表明:创新型城市建设显著促进了企业关键核心技术创新绩效提升,并且随着试点政策的深入推进,政策效应逐步提高。机制分析表明,创新型城市建设能够通过促进城市知识资本积累、促进企业创新风险承担能力提高两个途径,对企业关键核心技术创新产生积极影响。异质性分析表明,对于国有企业、处于成长期和衰退期的企业、位于低等级或经济中心城市的企业、位于基础研究能力较强城市的企业,创新型城市建设赋能关键核心技术创新的作用更为明显。因此,要因地制宜加快建设创新型城市,推动城市创新基础设施和创新要素更新迭代,并建立企业创新风险多方分担机制。

关键词：创新型城市关键核心技术创新城市知识资本企业创新风险

Follow-up study of gallbladder stones in 44 children

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World Journal of Clinical Cases 2024年第18期12卷 3403-3409页

作者： Jian-Xiong Yu Zhi-zhong jiang Yuan-Hao Cai Lin Zhou Bin Cai Department of Pediatric The Firs Affiliated Hospital of Naval Medical UniversityShanghai 20000China

BACKGROUND Cholesterol stones affect a certain subpopulation of *** have been raised on the impact of gallbladder surgery on the growth of children and *** To study the population characteristics,clinical features,treatment,and prognosis of gallstones in *** The clinical data of 44 children with gallstones admitted to The First Affiliated Hospital of Naval Medical University from August 2009 to August 2021 were collected,the children were followed up by telephone to monitor their *** follow-up ended in August *** shortest follow-up time was 2 years and 6 months,whereas the longest was 13 years and 11 *** population characteristics,general clinical characteristics,and treatments were retrospectively *** children were divided according to whether they underwent surgical gallbladder removal into an operation group(n=28)and a non-operation group(n=16),The effects of surgical gallbladder resection on the growth and development of children were *** The male–female ratio in the population was 6:5 and 84.09%of the children had onset in ***,29.55%of the children were overweight or *** study identified 26 cases with metabolic abnormalities,9 with hemolytic anemia,and 4 with choledochal *** the population,68.18%had recurrent symptomatic *** treatment accounted for 63.64%,with laparoscopic cholecystectomy accounting for 71.43%of surgical *** significant differences were observed in symptoms and complications between the surgery and non-surgery ***,no significant differences were found between the two groups in the attainment of genetic height target and the rightward shift of height curve during *** The sex characteristics of gallstones in children were not *** gallstones occurred in adolescents and rarely in young children.A considerable proportion of children have inborn causes,which are of

关键词： Gallstones in children Clinical characteristics Growth and development Operation Clinical features

Influence of pier height on the safety of trains running on high-speed railway bridges during earthquakes

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Journal of Central South University 2024年第6期31卷 2102-2115页

作者： NIE Yu-tao GUO Wei jiang Li-zhong YU Zhi-wu ZENG Chen WANG Yang HE Xu-en REN Shao-xun HUANG Ren-qiang LIANG Guang-yue LI Chang-qing School of Civil Engineering Central South UniversityChangsha 410075China National Engineering Research Center of High-speed Railway Construction Technology Central South UniversityChangsha 410075China

Sudden earthquakes pose a threat to the running safety of trains on high-speed railway bridges,and the stiffness of piers is one of the factors affecting the dynamic response of train-track-bridge *** this paper,a experiment of a train running on a high-speed railway bridge is performed based on a dynamic experiment system,and the corresponding numerical model is *** reliability of the numerical model is verified by ***,the experiment and numerical data are analyzed to reveal the pier height effects on the running safety of trains on *** results show that when the pier height changes,the frequency of the bridge below the 30 m pier height changes greater;the increase of pier height causes the transverse fundamental frequency of the bridge close to that of the train,and the shaking angle and lateral displacement of the train are the largest for bridge with 50 m pier,which increases the risk of derailment;with the pier height increases from 8 m to 50 m,the derailment coefficient obtained by numerical simulations increases by 75% on average,and the spectral intensity obtained by experiments increases by 120% on average,two indicators exhibit logarithmic variation.

关键词： pier height high-speed railway bridge running safety numerical model