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Surface micro-arrays enhancing electromagnetic interference shielding of polydimethylsiloxane/multiwalled carbon nanotubes nanocomposites

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Nano Research 2025年第1期18卷 508-519页

作者： Ke jiang zhi Chen ji Yu Chen Zheng Shan Huang Ming Wang Chongqing Key Laboratory of Soft-Matter Material Manufacturing School of Chemistry and Chemical EngineeringSouthwest UniversityChongqing 400715China School of Mechanics Civil Engineering and ArchitecturesNorthwestern Polytechnical UniversityXi’an 710072China jieyang Branch of Chemistry and Chemical Engineering Guangdong Laboratory(Rongjiang Laboratory) Jieyang 515200China

Herein,the electromagnetic shielding performance of surface concave-convex(SC)and zig-zag micro-arrays was studied by using a simulation prediction and a three-dimensional(3D)printing custom ***,surface stripe concaveconvex(SSC)and surface cylindrical concave-convex(SCC)micro-arrays with or without zig-zag micro-arrays are designed,and their shielding performance is simulated in multi-bands(C-,X-band).The multiwalled carbon nanotubes/polydimethylsiloxane composites(MWCNT/PDMS)with different SC structures and different electrical conductivity are molded in acrylonitrile-butadiene-styrene copolymer(ABS)molds which are printed by a 3D *** results show that the electromagnetic interference shielding effectiveness(EMI SE)of the samples can be enhanced by constructing the SC micro-arrays with zig-zag micro-arrays,and improving with the increase of conductivity and *** addition,the shielding mechanism of the SC-MWCNT/PDMS composites is investigated and discussed by an electromagnetic simulation.

关键词： surface micro-arrays electrical properties electromagnetic interference(EMI)shielding three-dimensional(3D)printing

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水产资源低碳高效利用技术

水产学报 2011年第2期35卷 315-320页

作者：章超桦曹文红吉宏武洪鹏志郝记明广东海洋大学

我国是水产品生产大国,水产品产量连续多年居世界第一位,但加工利用率不高、资源浪费严重、污染较大。提高这些水产资源的利用效率,对减少环境污染、提高加工企业经济效益、提高全民消费水平、实现高效低碳的水产加工业均具有重要意义... 详细信息

我国是水产品生产大国,水产品产量连续多年居世界第一位,但加工利用率不高、资源浪费严重、污染较大。提高这些水产资源的利用效率,对减少环境污染、提高加工企业经济效益、提高全民消费水平、实现高效低碳的水产加工业均具有重要意义。对虾加工产生大量的虾头、虾壳废弃物,采用自溶技术高效回收蛋白质等内含物,低碱体系高效回收虾头壳中的甲壳素,污染低,产品附加值高,可实现对虾的低碳高效利用。对虾加工低碳高效利用技术已在多家企业实现产业化,经济效益显著,对其它水产品的低碳加工提供了很好的借鉴作用。论文在此基础上展望了水产品低碳加工技术的发展趋势。

关键词：水产品加工对虾低碳技术高效利用

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基于蚂蚁算法的网格计算任务调度方法设计

天津大学学报（自然科学与工程技术版） 2004年第5期37卷 414-418页

作者：许智宏孙济洲天津大学电子信息工程学院天津300072

网格环境中的资源情况和任务情况异常复杂,难以用实验测试各种资源管理和任务调度方法的有效性.文中提出一种网格仿真系统结构,并设计和实现了基于蚂蚁算法的任务调度策略,将任务调度和资源管理相结合,兼顾系统的负载平衡和QOS,取得了... 详细信息

网格环境中的资源情况和任务情况异常复杂,难以用实验测试各种资源管理和任务调度方法的有效性.文中提出一种网格仿真系统结构,并设计和实现了基于蚂蚁算法的任务调度策略,将任务调度和资源管理相结合,兼顾系统的负载平衡和QOS,取得了较理想的实验结果.

关键词：蚂蚁算法网格计算任务调度资源管理 Globus

Repetitive transcranial magnetic stimulation in Alzheimer’s disease:effects on neural and synaptic rehabilitation

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Neural Regeneration Research 2025年第2期20卷 326-342页

作者： Yi ji Chaoyi Yang Xuerui Pang Yibing Yan Yue Wu zhi Geng Wenjie Hu Panpan Hu Xingqi Wu Kai Wang Department of Neurology The First Affiliated Hospital of Anhui Medical UniversityHefeiAnhui ProvinceChina Anhui Province Key Laboratory of Cognition and Neuropsychiatric Disorders HefeiAnhui ProvinceChina Collaborative Innovation Center of Neuropsychiatric Disorders and Mental Health HefeiAnhui ProvinceChina Institute of Artificial Intelligence Hefei Comprehensive National Science CenterHefeiAnhui ProvinceChina Department of Psychology and Sleep Medicine The Second Affiliated Hospital of Anhui Medical UniversityHefeiAnhui ProvinceChina

Alzheimer’s disease is a neurodegenerative disease resulting from deficits in synaptic transmission and *** Alzheimer’s disease brain tends to be hyperexcitable and hypersynchronized,thereby causing neurodegeneration and ultimately disrupting the operational abilities in daily life,leaving patients *** transcranial magnetic stimulation is a cost-effective,neuro-modulatory technique used for multiple neurological *** the past two decades,it has been widely used to predict cognitive decline;identify pathophysiological markers;promote neuroplasticity;and assess brain excitability,plasticity,and *** has also been applied to patients with dementia,because it can yield facilitatory effects on cognition and promote brain recovery after a neurological ***,its therapeutic effectiveness at the molecular and synaptic levels has not been elucidated because of a limited number of *** study aimed to characterize the neurobiological changes following repetitive transcranial magnetic stimulation treatment,evaluate its effects on synaptic plasticity,and identify the associated *** review essentially focuses on changes in the pathology,amyloidogenesis,and clearance pathways,given that amyloid deposition is a major hypothesis in the pathogenesis of Alzheimer’s *** mechanisms associated with repetitive transcranial magnetic stimulation procedures and different pathways mediating gene transcription,which are closely related to the neural regeneration process,are also ***,we discuss the outcomes of animal studies in which neuroplasticity is modulated and assessed at the structural and functional levels by using repetitive transcranial magnetic stimulation,with the aim to highlight future directions for better clinical translations.

关键词： Alzheimer’s disease amyloid deposition apoptotic mechanisms biomarker neural regeneration neurodegeneration repetitive transcranial magnetic stimulation synaptic plasticity

超高效液相色谱法-串联质谱法快速测定绿茶中56种农药残留

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食品研究与开发 2018年第16期39卷 134-139页

作者：杨梅汪俭孙思潘承丹洪之国兰吉玉黔东南州农产品质量安全检测中心贵州凯里556000

建立了绿茶中56种农药残留的超高效液相色谱法-串联质谱法(ultra-high performance liquid chromatography-tandem mass spectrometry,UPLC-MS/MS)快速检测方法。样品采用乙腈提取后,浓缩提取物用Cleanet-TPT柱净化,多反应监测(multiple reaction monitoring,MRM)测定,外标法定量。56种农药在0.005 mg/L^0.200 mg/L质量浓度范围内线性关系良好,相关系数均大于0.990,方法的检测下限为0.005 mg/kg,在添加浓度为0.005 mg/kg^0.100 mg/kg时回收率为71.28%~125.00%,相对标准偏差(relative standard deviation,RSD)为1.23%~12.34%(n=6)。该方法能够满足绿茶中的56种农药残留的检测要求。

关键词：超高效液相色谱-串联质谱法农药残留绿茶

Delay-aware downlink beamforming with discrete rate adaptation for green cloud radio access network

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The Journal of China Universities of Posts and Telecommunications 2017年第1期24卷 26-34页

作者： Yu zhi Wang Ke ji hong School of Telecommunication Engineering Beijing University of Posts and Telecommunications Beijing 100876 China

With the popularity of variety delay-sensitive services, how to guarantee the delay requirements for mobile users （MUs） is a great challenge for downlink beamformer design in green cloud radio access networks （C-RANs）. In this paper, we consider the problem of the delay-aware downlink beamforming with discrete rate adaptation to minimize the power consumption of C-RANs. We address the problem via a mixed integer nonlinear program （MINLP）, and then reformulate the MINLP problem as a mixed integer second-order cone program （MI-SOCP）, which is a convex program when the integer variables are relaxed as continuous ones. Based on this formulation, a deflation algorithm, whose computational complexity is polynomial, is proposed to derive the suboptimal solution. The simulation results are presented to validate the effectiveness of our proposed algorithm.

关键词： C-RAN delay-aware downlink beamfoming discrete rate adaptation green communication mixed integer second-order cone programming

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本科翻译专业教学中的文体翻译意识培养

沈阳教育学院学报 2010年第2期12卷 29-32页

作者：祁芝红姬潇潇北京第二外国语学院英语学院北京100024

分析了本科翻译专业教学中培养学生文体翻译意识的重要性,认为培养本科翻译专业学生的文体翻译意识对提高学生的翻译能力至关重要,在教学中可以文体构成因素为操作对象,通过译前提示(文体特征识别与分析)、译文对比(文体翻译选择与实现... 详细信息

分析了本科翻译专业教学中培养学生文体翻译意识的重要性,认为培养本科翻译专业学生的文体翻译意识对提高学生的翻译能力至关重要,在教学中可以文体构成因素为操作对象,通过译前提示(文体特征识别与分析)、译文对比(文体翻译选择与实现)、译后小结(文体翻译知识扩展与意识强化)等方法来实现。

关键词：本科翻译专业文体意识翻译能力翻译教学

A Compensation Model of Continuous Temperature Measurement for Molten Steel in Tundish

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Journal of Iron and Steel Research International 2012年第7期19卷 6-11页

作者： ZU Ling-yu MENG hong-ji XIE zhi College of Information Science and Engineering Northeastern UniversityShenyang 110819LiaoningChina

A compensation model has been proposed to reduce errors caused by the immersion depth of the sensor and the time lag of continuous temperature measurement for molten steel in tundish, which is based on the limited data fitting method and data fusion technology. According to the heat *** of sensor, the thermal model has been bulit to determine the temperature variation function. The parameters of the compensation model are recognized by generic algorithm, which combines the determine function, the molten steel mass in the ladle and pouring time. The processing of error compensation is divided into three stages： tracking, holding and compensation. When the processing is stable, the measured temperature error is small, and the measured temperature is regarded as accurate val- ue and tracked. For the end of pouring stage of the ladle, the temperature error is caused by the immersion depth of the sensor, and the measured temperature before sharp decreasing is considered as real temperature and held. For the temperature increasing stage after ladle changed, the measured temperature is compensated online. The application results show that the error between the compensation temperatures and the actual ones have been decreased to ±2 ℃, and the time lag could be shortened from 3-5 min to 40 s by applying this model.

关键词： compensation temperature time lag genetic algorithm error

Neurotoxicity of prenatal alcohol exposure on medullary pre-B?tzinger complex neurons in neonatal rats

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Neural Regeneration Research 2015年第7期10卷 1095-1100页

作者： Ming-li ji Yun-hong Wu zhi-bin Qian Department of Physiology Xinxiang Medical University Department of Functional Laboratory Xinxiang Medical University

Prenatal alcohol exposure disrupts the development of normal fetal respiratory function, but whether it perturbs respiratory rhythmical discharge activity is unclear. Furthermore, it is unknown whether the 5-hydroxytryptamine 2A receptor（5-HT2AR） is involved in the effects of prenatal alcohol exposure. In the present study, pregnant female rats received drinking water containing alcohol at concentrations of 0%, 1%, 2%, 4%, 8% or 10%（v/v） throughout the gestation period. Slices of the medulla from 2-day-old neonatal rats were obtained to record respiratory rhythmical discharge activity. 5-HT2 AR protein and m RNA levels in the pre-B？tzinger complex of the respiratory center were measured by western blot analysis and quantitative RT-PCR, respectively. Compared with the 0% alcohol group, respiratory rhythmical discharge activity in medullary slices in the 4%, 8% and 10% alcohol groups was decreased, and the reduction was greatest in the 8% alcohol group. Respiratory rhythmical discharge activity in the 10% alcohol group was irregular. Thus, 8% was the most effective alcohol concentration at attenuating respiratory rhythmical discharge activity. These findings suggest that prenatal alcohol exposure attenuates respiratory rhythmical discharge activity in neonatal rats by downregulating 5-HT2 AR protein and m RNA levels.

关键词： nerve regeneration brain injury prenatal alcohol exposure pre-B?tzinger complex respiratory depression neonatal rats medullary slice medullary respiratory center respiratory rhythmical discharge activity respiratory neuron 5-hydroxytryptamine 2A receptor neural regeneration