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Clinical features of aortic dissection associated with Takayasu＇s arteritis

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Journal of Geriatric Cardiology 2017年第7期14卷 485-487页

作者： Xue-Ping WU Ping zhu Cardiovascular Department of Southern Building Chinese PLA General Hospital Beijing China

Takayasu＇s arteritis （TA） is a chronic and nonspecific in- flammatory vessel disease that involves the aorta and its major branches. TA results in stenosis, occlusion or aneu- rysmal degeneration of large arteries pathologically. Al- though TA is an unusual disease, it is more commonly ob- served to occur in Asian females compared to the general population worldwide. Aortic dissection is a very rare com- plication of TA, and only a limited number of TA cases presenting with aortic dissection have been published so far.

关键词： Aortic dissection CT Takayasu's arteritis

Engineering 3D-printed aqueous colloidal ceramic slurry for direct ink writing

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Green Chemical Engineering 2023年第1期4卷 73-80页

作者： Jie zhu Jiangtao Yu Yingcheng Wu Yanhong Chao Peiwen Wu Linjie Lu Linlin Chen Jing He Wenshuai zhu School of Chemistry and Chemical Engineering Jiangsu UniversityZhenjiang212013China State Key Laboratory of Heavy Oil Processing China University of Petroleum-BeijingBeijing102249China School of the Environment and Safety Engineering Jiangsu UniversityZhenjiang212013China Key Laboratory of Water Pollution Treatment and Resource Reuse of Hainan Province College of Chemistry and Chemical EngineeringHainan Normal UniversityHaikou571158China

The construction of rapid prototyping for structured ceramics has a promoting effect on potential *** this work,engineering slurry with different formulations were used to develop aqueous colloidal ceramic slurry for direct ink writing(DIW).Optimized slurry of Formulation 5 possessed good printing effect for DIW with stable mechanical *** characteristics,including shrinkage,compressive strength,rheological behavior,and chemical property,were also *** ceramics prepared from optimized slurry can be preliminarily applied to adsorption of Rhodamine B and chlortetracycline,and possessed the advantages of easy separation and operation compared with powder *** work provides a strategy for the design of 3D-printed kaolin ceramic slurry,and also extends to potential application in adsorption.

关键词： 3D printing Direct ink writing Ceramic slurry Kaolin Adsorption

NP-MBO:A newton predictor-based momentum observer for interaction force estimation of legged robots

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Biomimetic Intelligence & Robotics 2024年第2期4卷 78-85页

作者： Zhengguo zhu Weikai Ding Weiliang zhu Daoling Qin Teng Chen Xuewen Rong Guoteng Zhang School of Control Science and Engineering Shandong UniversityJinan 250061China

Swift perception of interaction forces is a crucial skill required for legged robots to ensure safe human-robot interaction and dynamic contact ***-based interactive force is widely applied due to its outstanding cross-platform *** this paper,we present a novel interactive force observer,which possesses superior dynamic tracking *** propose a dynamic cutoff frequency configuration method to replace the conventional fixed cutoff frequency setting in the traditional momentum-based observer(MBO).This method achieves a balance between rapid tracking and noise ***,to mitigate the phase lag introduced by the low-pass filtering,we cascaded a Newton Predictor(NP)after MBO,which features simple computation and *** precision analysis of this method has been *** conducted extensive experiments on the point-foot biped robot BRAVER to validate the performance of the proposed algorithm in both simulation and physical prototype.

关键词： Interaction force estimation Momentum-based observer Newton predictor Force control

Chemical composition and larvicidal effects of essential oil of Blumea martiniana against Anopheles anthropophagus

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Asian Pacific Journal of Tropical Medicine 2011年第5期4卷 371-374页

作者： Liang zhu Ying-juan Tian College of Food and Bioengineering South China University of TechnologyGuangzhouGuangdong ProvinceChina

Objective:To determine chemical composition of the hydrodistilled essential oil of Blumea martiniana,and to evaluate its larvicidal activity against Anopheles anthropophagus,the natural vector of ***:Chemical composition of essential oils extracted by steam distillation was investigated by gas chromatography and mass spectroscopy（GC-MS）.Larvicidal activity of essential oil and its four main compounds was carried out by WHO *** larvae of early fourth-instar stage were used in the larvicidal assay and five replicates were maintained for each *** 24 h LC50 and LC90 values were determined following probit ***:Totally 68 compounds corresponding to 98.55%of the total oil were identified and the major constituents of essential oil were:linalool（10.36%）,germacrene D（9.09%）, borneol（6.24%）,γ-terpinene（5.38%）.The oil and linalool,germacrene D,bomeol,γ-terpinene exerted significant larvicidal activity with LC50 values of 46.86,35.87,44.61,35.89,and 29.21 mg/L, *** also showed a dose dependent effect on ***:The essential oil of Blumea martiniana and its four major compounds may have potential for use in control of Anopheles anthropophagus larvae and could be useful in search of newer,safer and more effective natural compounds as larvicides.

关键词： Blumea martiniana Essential oil Composition Larvicidal Anopheles anthropophagus

Precise Editing of a Target Base in the Rice Senome Using a Modified CRISPR/Cas9 System

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Molecular Plant 2017年第3期10卷 523-525页

作者： Yuming Lu Jian-Kang zhu Shanghai Center for Plant Stress Biology Center for Excellence in Molecular Plant Sciences Chinese Academy of Sciences Shanghai 201602 China Department of Horticulture and Landscape Architecture Purdue University West Lafayette IN 47907 USA

CRISPR/Cas9 （clustered regularly interspaced short palindromic repeats/CRISPR-associated Cas9） has been widely used in genome editing in a variety of organisms, including rice （Cong et al., 2013; Feng et al., 2013）.

关键词： Precise Editing Target Base Rice Genome Using

High dispersion of heteropolyacid nanoparticles on hydrothermally Cs-modified three-dimensionally ordered macroporous SiO2 with excellent selectivity in methacrolein oxidation

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Chinese Journal of Chemical Engineering 2020年第11期28卷 2785-2791页

作者： Heng Zhang Junqi Liu Chenyuan Liu Tingting Wang Wancheng zhu School of Chemistry and Chemical Engineering Qufu Normal UniversityQufu 273165China

Heteropolyacid nanoparticles(NPs)were supported on Cs-modified three-dimensionally ordered macroporous(3DOM)SiO2 and used as the catalyst for the oxidation of methacrolein(MAL)to methacrylic acid(MAA).Hydrothermal treatment and incipient wetness impregnation were employed respectively for the *** was found that hydrothermal Cs-modification of 3DOM SiO2 promoted the dispersion of the supported heteropolyacid,which showed an average particle size of 5.2 nm,much smaller than that(17.6 nm)on the Csmodified 3DOM SiO2 prepared by incipient wetness *** effects of hydrothermal treatment on the structure and catalytic performance of the catalyst were *** showed that the ion exchange between Cs+and the surface silanol groups on 3DOM SiO2 was promoted with the increase of the hydrothermal ***,Cs-modification helped the heteropolyacid to retain intact Keggin structure,inhibiting the formation of *** dispersed heteropolyacid NPs with enhanced structural stability exhibited excellent selectivity to MAA in the oxidation of MAL.

关键词： Catalyst support Heteropolyacid Nanoparticles Oxidation Methacrolein

Potential Assessment of Spatial Correlation to Improve Maximum Distributed PV Hosting Capacity of Distribution Networks

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Journal of Modern Power Systems and Clean Energy 2021年第4期9卷 800-810页

作者： Han Wu Yue Yuan Junpeng zhu Kejun Qian Yundai Xu College of Energy and Electrical Engineering Hohai UniversityNanjing 211100China Nanjing Institute of Technology Nanjing 211167China Suzhou Power Supply Branch of State Grid Jiangsu Electric Power Company Suzhou 215004China

Successful distributed photovoltaic (PV) planning now requires a hosting capacity assessment process that accounts for an appropriate model of PV output and its uncertainty. This paper explores how the PV hosting capacity of distribution networks can be increased by means of spatial correlation among distributed PV outputs. To achieve this, a novel PV hosting capacity assessment method is proposed to account for arbitrary geographically dispersed distributed PVs. In this method, the empirical relation between the spatial correlation coefficient and distance is fitted by historical data in one place and then applied to model the joint probability distribution of PV outputs at a neighboring location. To derive the PV hosting capacity at candidate locations, a stochastic PV hosting capacity assessment model that aims to maximize the PV hosting capacity under thermal and voltage constraints is proposed. Benders decomposition algorithm is also employed to reduce the computational cost associated with the numerous sampling scenarios. Finally, a rural 59-bus distribution network in Suzhou, China, is used to demonstrate the effectiveness of the proposed PV hosting capacity assessment methodology and the significant benefits obtained by increasing geographical distance.

关键词： Copula mixed-integer cone programming PV capacity assessment spatial correlation stochastic program

High Step-up SEPIC Converters Based on a Family of Coat Circuit

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CSEE Journal of Power and Energy Systems 2023年第5期9卷 1753-1764页

作者： Binxin zhu Yu Huang Yao Zhang Guanghui Liu Shihuan Chen the College of Electrical Engineering and New Energy China Three Gorges UniversityYichang 443002China

A family of coat circuits for SEPIC converters to improve their boost capability is *** present coat circuit does not contain any active switches,so the voltage conversion ratio of the presented converters can be enhanced without complicating its gate driver and control ***,because of the expansibility of the coat circuit,the number of its basic cells can be adjusted regarding the actual application ***,in comparison with a conventional SEPIC converter,voltage stress on power switch and diodes of the presented topology is lower at the same output voltage,and thus semiconductor components with low on-resistance are chosen to improve conversion efficiency of *** operational principle and steady state analysis of the SEPIC converter with one of the proposed coat circuits have been discussed in detail,and a 300W laboratory prototype is implemented to prove the theoretical analysis of presented converter.

关键词： Coat circuit high voltage gain low voltage stress SEPIC converter

Immobilization of cobalt oxide nanoparticles on porous nitrogen-doped carbon as electrocatalyst for oxygen evolution

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Chinese Journal of Chemical Engineering 2022年第12期52卷 10-18页

作者： Shusheng Li Rui Kuang Xiangzheng Kong Xiaoli zhu Xubao Jiang College of Chemistry and Chemical Engineering University of JinanJinan 250022China College of Traffic Civil Engineering Shandong Jiaotong UniversityJinan 250357China

Highly efficient and robust electrocatalysts have been in urgent demand for oxygen evolution reaction(OER).For this purpose,high-cost carbon materials,such as graphene and carbon nanotubes,have been used as supports to metal oxides to enhance their catalytic *** report here a new Co_(3)O_(4)-based catalyst with nitrogen-doped porous carbon material as the support,prepared by pyrolysis of porous polyurea(PU) with Co(NO_(3))_(2)immobilized on its *** this end,PU was first synthesized,without any additive,through a very simple one-step precipitation polymerization of toluene diisocyanate in a binary mixture of H2O-acetone at room *** immersing PU in an aqueous solution of Co(NO_(3))_(2)at room temperature,a cobalt coordinated polymer composite,Co(NO_(3))_(2)/PU,was obtained,which was heated at 500℃ in air for 2 h to get a hybrid,Co_(3)O_(4)/NC,consisting of Co_(3)O_(4)nanocrystals and sp2-hybridized N-doped *** this Co_(3)O_(4)/NC as a catalyst in OER,a current density of10 mA·cm^(-2)was readily achieved with a low overpotential of 293 mV with a Tafel slope of87 mV·dec^(-1),a high catalytic *** high performance was well retained after 1000 recycled uses,demonstrating its good *** work provides therefore a facile yet simple pathway to fabrication of a new transition metal oxides-based N-doped carbon catalyst for OER with high performance.

关键词： Porous polyurea N-doped carbon-Co_(3)O_(4)hybrid Oxygen evolution Catalyst Electrolysis Electrochemistry