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Journal of Electronic Science and Technology 2019年第4期17卷 291-299页

作者： zhi-hao guo Shi-Er Dong the School of Civil Engineering and Geomatics Southwest Petroleum University

As different power has its own receivers,this paper analyzes and designs a multiple-receiver wireless power transfer(WPT)system *** equivalent circuit model of the system is established to analyze the key parameters including transmitter power,receiver power,transmission efficiency,and each receiver power allocation.A control circuit is proposed to achieve the maximum transmission efficiency and transmitter power control and arbitrary receiver power allocation ratios for different *** the proposed control circuit,receivers with different loads can allocate appropriate power according to its power demand,the transmitter power and system efficiency do not vary with the change of the number of ***,this control circuit is validated using a 130-kHz WPT system with three receivers whose power received is 3:10:12,and the overall system efficiency can reach as high as 55.5%.

关键词： Multiple-receiver receiver power allocation transmitter power control wireless power transfer(WPT).

Neural network mapping of gelastic behavior in children with hypothalamus hamartoma

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World Journal of Pediatrics 2024年第7期20卷 735-745页

作者： zhi‑hao guo Jian‑guo Zhang Xiao‑Qiu Shao Wen‑Han Hu Lin Sang Zhong Zheng Chao Zhang Xiu Wang Chun‑De Li Jia‑Jie Mo Kai Zhang Department of Neurosurgery Beijing Tiantan HospitalCapital Medical UniversityNo.119 South 4th Ring West RoadFengtai DistrictBeijing 100070China Department of Neurosurgery Beijing Neurosurgical InstituteCapital Medical UniversityBeijingChina Department of Neurology Beijing Tiantan HospitalCapital Medical UniversityBeijingChina Department of Neurosurgery Beijing Fengtai HospitalBeijingChina

Background Hypothalamus hamartomas(HHs)are rare,congenital,tumor-like,and nonprogressive malformations resulting in drug-resistant epilepsy,mainly affecting *** seizures(GS)are an early hallmark of epilepsy with *** aim of this study was to explore the disease progression and the underlying physiopathological mechanisms of pathological laughter in *** We obtained clinical information and metabolic images of 56 HH patients and utilized ictal semiology evaluation to stratify the specimens into GS-only,GS-plus,and no-GS subgroups and then applied contrasted trajectories inference(cTI)to calculate the pseudotime value and evaluate GS *** logistic regression was performed to identify neuroimaging-clinical predictors of GS,and then voxelwise lesion network-symptom mapping(LNSM)was applied to explore GS-associated brain *** cTI inferred the specific metabolism trajectories of GS progression and revealed increased complexity from GS to other seizure *** was further validated via actual disease duration(Pearson R=0.532,P=0.028).Male sex[odds ratio(OR)=2.611,P=0.013],low age at seizure onset(OR=0.361,P=0.005),high normalized HH metabolism(OR=−1.971,P=0.037)and severe seizure burden(OR=−0.006,P=0.032)were significant neuroimaging clinical *** revealed that the dysfunctional cortico-subcortico-cerebellar network of GS and the somatosensory cortex(S1)represented a negative *** This study sheds light on the clinical characteristics and progression of GS in children with *** identified distinct subtypes of GS and demonstrated the involvement of specific brain regions at the cortical–subcortical–cerebellar *** valuable results contribute to our understanding of the neural correlates of GS.

关键词： Contrasted trajectories inference Gelastic seizure Hypothalamus hamartoma Lesion network-symptom mapping Neural basis

Empirical decay relationship between ionic conductivity and porosity of garnet type inorganic solid-state electrolytes

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Transactions of Nonferrous Metals Society of China 2022年第10期32卷 3362-3373页

作者： zhi-hao guo Xin-hai LI zhi-xing WANG Hua-jun guo Wen-jie PENG Qi-yang HU guo-chun YAN Jie-xi WANG School of Metallurgy and Environment Central South UniversityChangsha 410083China Engineering Research Center of the Ministry of Education for Advanced Battery Materials Central South UniversityChangsha 410083China Hunan Provincial Key Laboratory of Nonferrous Value-added Metallurgy Central South UniversityChangsha 410083China

Ionic conductivity is one of the crucial parameters for inorganic solid-state *** explore the relationship between porosity and ionic conductivity,a series of Li_(6.4)Ga_(0.2)La_(3)Zr_(2)O_(12) garnet type solid-state electrolytes with different porosities were prepared via solid-state *** on the quantified data,an empirical decay relationship was summarized and discussed by means of mathematical model and dimensional analysis *** suggests that open porosity causes ionic conductivity to decrease *** pre-exponential factor obeys the Arrhenius Law quite well with the activation energy of 0.23 eV,and the decay constant is averaged to be 2.62%.While the closed porosity causes ionic conductivity to decrease *** slope and intercept of this linear pattern also obey the Arrhenius Law and the activation energies are 0.24 and 0.27 eV,***,the total porosity is linearly dependent on the open porosity,and different sintering conditions will lead to different linear patterns with different slopes and intercepts.

关键词： garnet type solid-state electrolyte ionic conductivity porosity empirical decay relationship

p-Laplace型非线性泛函差分方程正解的存在性

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数学学报（中文版） 2006年第1期49卷 187-194页

作者：翁佩萱郭志浩华南师范大学数学系广州510631

作者研究下述的p-Laplace型非线性泛函差分方程边值问题正解和多重正解的存在性,得到相应的充分条件,其中Φp(u)=|u|p-2u,P>1,(?)(0)= 0,C+={(?):(?)∈ C,(?)(k)≥0,k∈[-r,0])．

关键词： p-Laplace型非线性泛函差分方程边值问题

Ultra‑High Sensitivity Anisotropic Piezoelectric Sensors for Structural Health Monitoring and Robotic Perception

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Nano-Micro Letters 2025年第2期17卷 432-446页

作者： hao Yin Yanting Li zhiying Tian Qichao Li Chenhui Jiang Enfu Liang Yiping guo State Key Laboratory of Metal Matrix Composites School of Materials Science and EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China Beijing Vacuum Electronics Research Institute Beijing 100015People’s Republic of China Fundamental Science On Vibration Shock and Noise LaboratoryState Key Laboratory of Mechanical System and VibrationSchool of Mechanical EngineeringShanghai Jiao Tong UniversityShanghai 200240People’s Republic of China

Monitoring minuscule mechanical signals,both in magnitude and direction,is imperative in many application scenarios,e.g.,structural health monitoring and robotic sensing ***,the piezoelectric sensor struggles to satisfy the requirements for directional recognition due to the limited piezoelectric coefficient matrix,and achieving sensitivity for detecting micrometer-scale deformations is also ***,we develop a vector sensor composed of lead zirconate titanate-electronic grade glass fiber composite filaments with oriented arrangement,capable of detecting minute anisotropic *** as-prepared vector sensor can identify the deformation directions even when subjected to an unprecedented nominal strain of 0.06%,thereby enabling its utility in accurately discerning the 5μm-height wrinkles in thin films and in monitoring human pulse *** ultra-high sensitivity is attributed to the formation of porous ferroelectret and the efficient load transfer efficiency of continuous lead zirconate titanate ***,when integrated with machine learning techniques,the sensor’s capability to recognize multi-signals enables it to differentiate between 10 types of fine textures with 100%*** structural design in piezoelectric devices enables a more comprehensive perception of mechanical stimuli,offering a novel perspective for enhancing recognition accuracy.

关键词： Flexible piezoelectric filaments Anisotropic Ultra-high sensitivity Structural health detection Texture recognition

A Mn-porphyrinic metal–organic framework immobilizing glucose oxidase for combined photodynamic/chemodynamic/starvation therapy

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Tungsten 2025年第1期7卷 183-194页

作者： Xin-Ran Sun hao-Ming Yuan guo-Da Zhang Chao Wang Shu-Juan Sun Peng-Fei Shi Shandong Provincial Key Laboratory of Detection Technology for Tumor Markers School of Chemistry and Chemical Engineering Linyi University

The combination of photodynamic therapy（PDT） and chemodynamic therapy（CDT） in tumor treatment has attracted considerable ***,tumor hypoxia and glutathione（GSH） overproduction in the tumor tissue restricted the progress of their ***,a Mn-porphyrinic metal-organic framework（Mn-TCPP） was constructed by the one-pot method and further used for immobilizing glucose oxidase（GOx） to obtain GOx@*** would rapidly exhaust endogenous glucose into hydrogen peroxide（H2O2） and gluconic acid,thus shutting off the energy supply of tumor cells for starvation ***-TCPP catalyzed H2O2to produce oxygen,regulating the hypoxic tumor microenvironment and in turn improving1O2generation under laser ***,Mn-TCPP can reduce reactive oxygen species consumption owing to the redox reaction between Mn3+and GSH,thus greatly enhancing ***,benefiting from GOx-mediated starvation therapy,Mn2+produced by Mn3+reduction can react with sufficient intracellular H2O2to generate ·OH with high cytotoxicity through a Fenton-like *** treatment by GOx@Mn-TCPP under laser irradiation in vitro,the cell viability of 4T1 and A549 tumor cells reached to 20%,reflecting GOx@Mn-TCPP could give full play to the advantages of PDT/CDT/starvation *** results in vivo demonstrated that GOx@Mn-TCPP mediated synergistic cascade therapy could significantly inhibit tumor growth and improve the therapeutic effect.

关键词： Chemodynamic therapy Immobilizing enzyme Metal–organic frameworks Photodynamic therapy Starvation therapy

Positive effect of Mo on mechanical properties of a Ni-42W-10Co-x Mo medium heavy alloy

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China Foundry 2025年

作者： guo-xin Cao Jian-xin Dong Yong-sheng He He Jiang Fang hao zhi-hua Nie Teng-fei Ma Bao-quan Fu School of Materials Science and Engineering University of Science and Technology Beijing Xi'an Superalloy Technology Co. Ltd. School of Materials Science and Engineering Beijing Institute of Technology Key Laboratory of Air-driven Equipment Technology of Zhejiang Province Quzhou University

In this study,a novel Ni-W-Co-Mo medium heavy alloy (MHA) was designed to improve its mechanical strength via Mo *** the Ni-42W-10Co-xM o alloy series,where x represents the weight percent of Mo and varies between 0,1,2,5,and 10,the microstructure transitions from a dendritic structure to a hypoeutectic structure as the Mo content increases from 0 to 5wt.%.Moreover,as the Mo content increases from 0to 10wt.%,the distribution of theμ-phase shifts from being individually dispersed to forming aggregates,and its volume fraction rises from 0.5%to 7.9%.Notably,theμ-phase evolves into an eutectic microstructure,which helps in minimizing the segregation of *** change is accompanied by a substantial enhancement in mechanical properties;specifically,the compressive yield strength at room temperature increases from 350 MPa to 646 MPa,indicating a significant 85%***,the microhardness increases from 230 HV to 304 *** dynamics simulations further reveal that the strengthening mechanism of Ni-42W-10Co-xM o alloys is Mo-induced solid solution strengthening and precipitation strengthening.

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基于电气量特征的变压器绕组变形监测技术现状与展望

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电力自动化设备 2006年第2期26卷 28-32,52页

作者：李朋张保会郝治国褚云龙西安交通大学电气学院陕西西安710049 西北电网有限公司陕西西安710048

介绍电力变压器绕组变形产生的原因及表现形式,着重分析和总结现有的基于电气量特征的电力变压器绕组变形传统的离线检测技术和在线监测理论的特点及应用,并分析现有方法存在的主要问题和原因。结合变压器绕组变形与漏电感参数的变化关... 详细信息

介绍电力变压器绕组变形产生的原因及表现形式,着重分析和总结现有的基于电气量特征的电力变压器绕组变形传统的离线检测技术和在线监测理论的特点及应用,并分析现有方法存在的主要问题和原因。结合变压器绕组变形与漏电感参数的变化关系,指出变压器绕组漏电感参数的准确实时计算将成为绕组变形监测,尤其是从离线到在线监测技术发展的关键问题。

关键词：变压器绕组变形短路阻抗漏电感在线监测

Ammonia-induced CuO/13X for H_(2)S removal from simulated blast furnace gas at low temperature

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Green Energy & Environment 2025年第1期10卷 139-149页

作者： Erping Cao Yuhua Zheng hao Zhang Jianshan Wang Yuran Li Tingyu Zhu Zhan-guo Zhang Guangwen Xu Yanbin Cui State Key Laboratory of Mesoscience and Engineering Institute of Process EngineeringChinese Academy of SciencesBeijing100190China State Key Laboratory of Vanadium and Titanium Resources Comprehensive Utilization PanGang Group Research Institute Co.Ltd.Panzhihua Sichuan617000China Shenyang University of Chemical Technology Shenyang110142China University of Chinese Academy of Sciences Beijing 100049China

Blast furnace gas(BFG)is an important by-product energy for the iron and steel industry and has been widely used for heating or electricity ***,the undesirable contaminants in BFG(especially H_(2)S)generate harmful environmental *** desulfurization of BFG is urgent for integrated steel plants due to the stringent ultra-low emission *** with other desulfurization materials,zeolite-based adsorbents represent a viable option with low costs and long service *** this study,an ammonia-induced CuO modified 13X adsorbent(NH3–CuO/13X)was prepared for H_(2)S removal from simulated BFG at low *** XRD,H_(2)-TPR and TEM analysis proved that smaller CuO particles were formed and the dispersion of Cu on the surface of 13X zeolite was improved via the induction of *** on H_(2)S adsorption performance of the adsorbent was carried out using simulated BFG,and the results showed that NH3–CuO/13X-3 has better breakthrough sulfur capacity,which was more than twice the sulfur capacity of CuO/*** is proposed that the enhanced desulfurization performance of NH3–CuO/13X is attributed to an abundant pore of 13X,and combined action of 13X and *** work provided an effective way to improve the sulfur capacity of zeolite-based adsorbents via impregnation method by ammonia induction.

关键词： Blast furnace gas Desulfurization Ammonia-induced CuO 13X zeolite

Advances in Graphene‑Based Electrode for Triboelectric Nanogenerator

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Nano-Micro Letters 2025年第1期17卷 378-403页

作者： Bin Xie Yuanhui guo Yun Chen hao Zhang Jiawei Xiao Maoxiang Hou Huilong Liu Li Ma Xin Chen Chingping Wong State Key Laboratory of Precision Electronic Manufacturing Technology and Equipment Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Electromechanical Engineering Guangdong University of TechnologyGuangzhou 510006People’s Republic of China School of Materials Science and Engineering Georgia Institute of TechnologyAtlantaGA 30332USA

With the continuous development of wearable electronics,wireless sensor networks and other micro-electronic devices,there is an increasingly urgent need for miniature,flexible and efficient nanopower generation *** nanogenerator(TENG)technology can convert small mechanical energy into electricity,which is expected to address this *** the core component of TENG,the choice of electrode materials significantly affects its *** metal electrode materials often suffer from problems such as durability,which limits the further application of ***,as a novel electrode material,shows excellent prospects for application in TENG owing to its unique structure and excellent electrical *** review systematically summarizes the recent research progress and application prospects of TENGs based on graphene *** precision processing methods of graphene electrodes are introduced,and the applications of graphene electrode-based TENGs in various scenarios as well as the enhancement of graphene electrodes for TENG performance are *** addition,the future development of graphene electrode-based TENGs is also prospectively discussed,aiming to promote the continuous advancement of graphene electrode-based TENGs.

关键词： Triboelectric nanogenerator Precision processing Graphene electrode Self-powered sensor