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Chinese Journal of Polymer Science 2024年第3期42卷 322-332,I0006页

作者： Qing-Qing Liu qiu-hao lin Xiao-Dong Qi Nan Zhang Ting Huang Jing-Hui Yang Yong Wang School of Chemistry Southwest Jiaotong UniversityChengdu 610031China Key Laboratory of Advanced Technologies of Materials Ministry of Education of ChinaSouthwest Jiaotong UniversityChengdu 610031China

Polymer dielectrics with a high energy density and an available energy storage capacity have been playing an important role in advanced electronics and power systems. Nevertheless, the use of polymer dielectrics in harsh environments is limited by their low energy density at high temperatures. Herein, zirconium dioxide(ZrO_(2)) nanoparticles were decorated with amino group utilizing 4,4-methylenebis(phenyl isocyanate)(AMEO) and successfully incorporated into polyetherimide(PEI) matrix. The dielectric properties, breakdown strength, and energy storage performances of PEI/ZrO_(2)-AMEO nanocomposites were investigated from 25 ℃ to 150 ℃. It is found that the combination of moderate bandgap ZrO_(2) with modest dielectric constant and polar groups at interface with deep trap can offer an available strategy to simultaneously increase the dielectric constant and breakdown strength of polymer dielectrics. As a result, the composites containing ZrO_(2)-AMEO exhibit excellent energy storage performance at elevated temperatures. Specially, the PEI-based composites with 3 vol% ZrO_(2)-AMEO display a maximum discharged energy density(U_(d)) of 3.1 J/cm^(3) at 150 ℃, presenting 90% higher than that of neat PEI. This study may help to better develop the polymer-based dielectric composite applied at elevated temperatures.

关键词： Polyetherimide High temperature dielectric ZrO_(2) Interface

Electrocatalytic cleavage of a lignin β-O-4 model compound and coupling with nitrogen-containing aromatics using Prussian blue analogue-derived nickel–cobalt spinel

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Journal of Energy Chemistry 2025年第1期100卷 628-636页

作者： Yi Qi Xueying Chen Bowen Liu Xuliang lin Xueqing qiu Yanlin Qin Guangdong Provincial Key Laboratory of Plant Resources Biorefinery School of Chemical Engineering and Light Industry Guangdong University of Technology Guangdong Provincial Laboratory of Chemistry and Fine Chemical Engineering Jieyang Center Guangdong Basic Research Center of Excellence for Ecological Security and Green Development Guangdong University of Technology

Electrochemical conversion of lignin for the production of high-value heterocyclic aromatic compounds has great *** demonstrate the targeted synthesis and cation modulation of NiCo2O4spinel nanoboxes,synthesized via cation exchange and calcination *** catalysts exhibit excellent efficacy in the electrocatalytic conversion of lignin model compounds,specifically 2-phenoxy-1-phenylethanol,into nitrogen-containing aromatics,achieving high conversion rates and *** catalysts were synthesized via a cation exchange and calcination oxidation process,using Prussian blue nanocubes as *** porous architecture and polymetallic composition of the NiCo2O4spinel demonstrated superior performance in electrocatalytic oxidative coupling,achieving a 99.2 wt%conversion rate of the 2-phenoxy-1-phenylethanol with selectivities of 37.5 wt%for quinoline derivatives and 31.5 wt%for *** innovations include the development of a sustainable one-pot synthesis method for quinoline derivatives,the elucidation of a multistage reaction pathway involving CAO bond cleavage,hydroxyaldol condensation,and CAN bond formation,and a deeper mechanistic understanding derived from DFT *** work establishes a new strategy for lignin valorization,offering a sustainable route to produce high-value nitrogen-containing aromatics from renewable biomass under mild conditions,without the need for additional reagents.

关键词： Spinel Biomass valorization Electrocatalysis Lignin oxidation Coupling

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能源基础设施网络安全设计探析

通信电源技术 2019年第S1期36卷 99-100页

作者：郝秋林中国移动通信集团广东有限公司广州分公司

有组织的网络攻击不会放过任何漏洞。通过网络进行可视化管理给运营和维护带来方便和高效的同时,也让电源、UPS以及空调等能源基础设施暴露于网络安全的风险中。很多能源基础设施缺乏安全设计,增大了其安全风险。能源基础设施具有更长... 详细信息

有组织的网络攻击不会放过任何漏洞。通过网络进行可视化管理给运营和维护带来方便和高效的同时,也让电源、UPS以及空调等能源基础设施暴露于网络安全的风险中。很多能源基础设施缺乏安全设计,增大了其安全风险。能源基础设施具有更长的生命周期,在未来风险不可预知的情况下,需要对能源产品提出必要的安全要求。

关键词：网络安全安全标准能源基础设施漏洞

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广州移动某通信机楼节能改造方案设计与实现

通信电源技术 2020年第S1期37卷 373-377页

作者：郝秋林张亮中国移动广东广州分公司广东广州510000

针对广州移动某通信机楼运行过程存在的问题,从中央空调系统控制和能源监管两个方面,提出了融合多种空调节能技术和能源管理方法的综合节能改造方案。改造结果表明,空调系统节能率可达31.35%,PUE值可提高8.64%,年节电费用达147.25万元,... 详细信息

针对广州移动某通信机楼运行过程存在的问题,从中央空调系统控制和能源监管两个方面,提出了融合多种空调节能技术和能源管理方法的综合节能改造方案。改造结果表明,空调系统节能率可达31.35%,PUE值可提高8.64%,年节电费用达147.25万元,具有良好的经济效益。

关键词：通信机楼中央空调节能改造

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World Journal of Clinical Cases 2025年第6期13卷 24-29页

作者： Wen-Jin Yuan Yi-Juan Zheng Bing-Rong Zhang Yi-Jie lin You Li Yan-Yan qiu Xue-Ping Yu Department of Infection Disease Clinical Medical Research Center for Bacterial and Fungal Infectious Diseases of Fujian provinceFujian Medical University Affiliated First Quanzhou HospitalQuanzhou 362000Fujian ProvinceChina

BACKGROUND Hydroxyurea,an antimetabolite,is frequently prescribed for various hemato-logical disorders,and its common side effects include gastrointestinal problems,cutaneous or mucosal lesions and pyrexia/*** SUMMARY This study reports the case of a 67-year-old woman who developed recurrent abdominal pain after 10 years of continuous hydroxyurea therapy for primary *** revealed an ileocecal *** discontinuing hydroxyurea therapy for 6 months,follow-up colonoscopy showed a significant reduction in the *** We consider cecal ulcers as a rare complication of hydroxyurea therapy which typically resolves upon stopping the drug.

关键词： Hydroxyurea Ulcer Abdominal pain Thrombocythemia Colonoscopy Case report

Spread of invasive migratory pest Spodoptera frugiperda and management practices throughout China

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Journal of Integrative Agriculture 2021年第3期20卷 637-645页

作者： ZHOU Yan WU qiu-lin ZHANG hao-wen WU Kong-ming State Key Laboratory for Biology of Plant Diseases and Insect Pests Institute of Plant ProtectionChinese Academy of Agricultural SciencesBeijing 100193P.R.China

The fall armyworm(FAW),Spodoptera frugiperda(***)(Lepidoptera:Noctuidae),a notorious migratory pest native to tropical and subtropical America,invaded China in December 2018,then spread through 26 provinces(autonomous regions,municipalities)in 2019 and 27 in 2020,damaging 1.125 and 1.278 million hectares of crops,*** was the most severely affected crop,although wheat and other plants were also *** the biological characteristics,incidence regularity and migration patterns of the FAW populations,Chinese government implemented a regional control strategy and divided the areas infested with FAW into the annual breeding grounds in Southwest and South China,the transitional migration area in Jiangnan and Jianghuai and the key preventive area in the Huang-Huai-Hai region and North *** National Agro-Tech Extension and Service Center constructed"the National Information Platform for the Prevention and Control of the Fall Armyworm"at the county level,which would entail people reporting and mapping the spread of fall *** to forecasting information,millions of extension workers and small-scale growers in entire country were rallied by local governments to fight the pest through comprehensive control tactics including chemical,physical,biological and ecological *** to the joint prevention and control,the final loss of crops infested was controlled within 5%of the total in 2019 and *** review also gives a discussion on existing problems and future management scenarios.

关键词： Spodoptera frugiperda genetic characteristics occurrence and damage monitoring and early-warning control measures

Protective Effect of Human Umbilical Cord Mesenchymal Stem Cells in Glucocorticoid-induced Osteonecrosis of Femoral Head

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Current Medical Science 2021年第5期41卷 909-915页

作者： Chen qiu Jian-lin ZHOU Shuang DENG lin-sheng LONG hao PENG Department of Orthopedics Renmin Hospital of Wuhan UniversityWuhan 430060China Department of Orthopedics Xiangyang No.1 People's HospitalHubei University7 of MedicineXicingyang 443000China

Objective:To evaluate the effect of human umbilical cord mesenchymal stem cells(hUC-MSCs)on preventing rats from glucocorticoid-induced osteonecrosis of femoral head(GC-ONFH)in the early stage in vivo and to investigate the possible mechanism of hUC-MSCs in regulating the balance of osteogenesis and ***:All rats were randomly divided into 3 groups:control group(C group),model group(M group),and intervention group(Ⅰ group).The model of GC-ONFH was developed by a sequential administration of lipopolysaccharide and *** rats in the Ⅰ group were treated with caudal vein injection of *** weeks later,the blood samples were obtained to measure the activity of alkaline phosphatase(ALP)and the content of triglyceride(TG)in serum,and the femoral heads were harvested and observed by hematoxylin-eosin staining,Micro-CT,Western blot and real-time quantitative polymerase chain ***:After intervention of hUC-MSCs,the necrosis rate of femoral head decreased from 83%(10/12)to 33%(4/12),the rate of empty bone lacuna was significantly decreased,the activity of ALP increased significantly,the content of TG decreased significantly,the bone density increased obviously,the expression of RUNX2 and Col Ⅰ increased significantly and the expression of PPARγ decreased ***:These results revealed that caudal vein injection of hUC-MSCs can effectively reduce the incidence of GC-ONFH in rats by increasing ALP activity and reducing TG content in serum,increasing bone mineral density,promoting the expression of RUNX2 and Col I,and inhibiting the expression of PPARγ.

关键词： glucocorticoid-induced osteonecrosis of femoral head human umbilical cord mesenchymal stem cell RUNX2,ColⅠ,PPARγ

Improvement in irradiation resistance of FeCu alloy by pre-deformation through introduction of dense point defect sinks

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Rare Metals 2021年第4期40卷 885-896页

作者： hao Wu qiu-lin Li Ben Xu Hai-Long Liu Guo-Gang Shu Wei Liu Graduate School at Shenzhen Tsinghua UniversityShenzhen 518055China School of Materials Science and Engineering Tsinghua UniversityBeijing 100084China State Key Laboratory of Nuclear Power Safety Monitoring Technology and Equipment China Nuclear Power Engineering Co.LtdShenzhen 518172China

The irradiation resistance of pre-deformed FeCu alloy was studied using a 3 MeV Fe ion irradiation experiment at room temperature in comparison with that of the as-received *** and atom probe tomography(APT) were used to characterize the mechanical properties and solute *** stress-strain curve obtained by nanoindentation shows that the yield strength(σ0.2) of the pre-deformed sample is unexpectedly reduced with an increase in the irradiation dose to five displacements per atom(dpa).We suggest that it results both from the decrease in the dislocation density and the suppression of defects during *** shows that the nucleation of the Cu cluster is suppressed;however,its growth is promoted in the pre-deformed sample,resulting in the formation of sparse and coarse clusters at 1 dpa *** coarse Cu clusters were then unexpectedly refined to finer grains with an increase in the irradiation dose to 5 ***,the improvement in the resistance to irradiation in the pre-deformed sample is attributed to the dense point-defect sinks,that is,the dislocations and grain boundaries introduced by *** addition,the contributions of the dislocations and grain boundaries to the sink strength are estimated for both the as-received and pre-deformed *** results indicate that dislocations,rather than grain boundaries,play a major role after deformation.

关键词： Reactor pressure vessel Irradiation damage Pre-deformation Dislocation density Cu-rich clusters

Role of the PTEN signaling pathway in autism spectrum disorder

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Neuroscience Bulletin 2013年第6期29卷 773-778页

作者： Jing-Wen Lv Tian-lin Cheng Zi-Long qiu Wen-hao Zhou Department of Neonatology Children's Hospital of Fudan University Institute of Neuroscience Shanghai Institute of Biological SciencesChinese Academy of Sciences

Autism is an etiologically heterogeneous group of neurodevelopmental disorders,diagnosed mostly by the clinical behavioral *** concept that the tumor-related gene PTEN plays a critical role in autism spectrum disorder has emerged over the last *** this review,we focus on the essential role of the PTEN signaling pathway in neuronal differentiation and the formation of neural circuitry,as well as genetic mouse models with Pten ***,accumulated data suggest that the effect of PTEN on neural stem-cell development contributes significantly to the pathophysiology of autism spectrum disorders.

关键词： PTEN TSC1/2 autism synapse neural stem cells

Variational Bayesian labeled multi-Bernoulli filter with unknown sensor noise statistics

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Chinese Journal of Aeronautics 2016年第5期29卷 1378-1384页

作者： qiu hao Huang Gaoming Gao Jun College of Electronic Engineering Naval University of Engineering

It is difficult to build accurate model for measurement noise covariance in complex backgrounds. For the scenarios of unknown sensor noise variances, an adaptive multi-target tracking algorithm based on labeled random finite set and variational Bayesian （VB） approximation is proposed. The variational approximation technique is introduced to the labeled multi-Bernoulli （LMB） filter to jointly estimate the states of targets and sensor noise variances. Simulation results show that the proposed method can give unbiased estimation of cardinality and has better performance than the VB probability hypothesis density （VB-PHD） filter and the VB cardinality balanced multi-target multi-Bernoulli （VB-CBMeMBer） filter in harsh situations. The simulations also confirm the robustness of the proposed method against the time-varying noise variances. The computational complexity of proposed method is higher than the VB-PHD and VB-CBMeMBer in extreme cases, while the mean execution times of the three methods are close when targets are well separated.

关键词： Labeled random finite set Multi-Bernoulli filter Multi-target tracking Parameter estimation Variational Bayesian approximation