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Severe burn of penis caused by excessive short-wave diathermy

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Asian Journal of Andrology 2004年第4期6卷 377-378页

作者： JunJiang fang-QiangZhu Junluo luo-FuWang QingJiang DepartmentofUrology ResearchInstituteofSurgeryDapingHospitalThirdMilitaryMedicalUniversityChongqing400042China

1 IntroductionPenis burn is not rare and usually caused by boiling water and fire. To our knowledge we report the first case of severe burn of penis secondary to excessive short wave diathermy.

关键词： burn penis short-wave diathermy

Ni-based electrocatalysts for urea-assisted water splitting

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Chinese Journal of Structural Chemistry 2024年第8期43卷 10-11页

作者： Shuyuan Pan Zehui Yang fang luo Faculty of Materials Science and Chemistry China University of Geosciences Wuhan388 Lumo RDWuhan430074China College of Materials Science and Engineering State Key Laboratory of New Textile Materials&Advanced Processing TechnologyWuhan Textile UniversityWuhan430200China

Hydrogen,as one of the environmentally-friendly energy sources,has garnered much *** splitting is one promising technology to electrochemically produce hydrogen driven by intermittent renewable energy sources without ... 详细信息

关键词： splitting hydrogen electrochemical

Deposition Behavior at Different Substrate Temperatures by Using Supersonic Laser Deposition

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Journal of Iron and Steel Research International 2013年第10期20卷 87-93页

作者： YUAN Lin-jiang luo fang YAO Jian-hua Key Laboratory of Special Purpose Equipment and Advanced Processing Technology of Ministry of Education Zhejiang University of Technology College of Zhijiang Zhejiang University of Technology

The supersonic laser deposition （SLD） is a new fabrication process which combines the supersonic powder stream found in cold spray with laser heating of the deposition zone. Because of the instantaneity of particles impact, the deformation behaviors and the adhesion behaviors of particles impacted on the substrate by SI.D cannot be well investigated through experiments. Therefore, a finite elemen! model was developed to solve the problems above. Meanwhile, the heat effect of the substrate heated by laser was discussed. The effective plastic strain and the effec- tive stress between the particle and substrate at different laser preheal temperatures were studied. The results show that laser depositing temperatures of 1 000 and 1 100 ℃ on substrate would be the optimized for the bonding of parti- cles and substrate. In addition, the simulation results conformed to experimental results.

关键词： supersonic laser deposition deformation behavior adhesion behavior finite element model

On the Shadowing Property and Shadowable Point of Set-valued Dynamical Systems

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Acta Mathematica Sinica,English Series 2020年第12期36卷 1384-1394页

作者： Xiao fang luo Xiao Xiao NIE Jian Dong YIN Department of Mathematics Nanchang UniversityNanchang 330031P.R.China

In this article,the authors introduce the concept of shadowable points for set-valued dynamical systems,the pointwise version of the shadowing property,and prove that a set-valued dynamical system has the shadowing property iff every point in the phase space is shadowable;every chain transitive set-valued dynamical system has either the shadowing property or no shadowable points;and for a set-valued dynamical system there exists a shadowable point iff there exists a minimal shadowable *** the end,it is proved that a set-valued dynamical system with the shadowing property is totally transitive iff it is mixing and iff it has the specification property.

关键词： Shadowing property shadowable point set-valued dynamical system specification

ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF FLOW DISTRIBUTION IN MANIFOLDS FOR HEAT EXCHANGERS

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Journal of Hydrodynamics 2008年第2期20卷 179-185页

作者： LU fang luo Yong-hao YANG Shi-ming School of Mechanical Engineering Shanghai Jiaotong University Shanghai 200240 China

The prediction of flow distribution in flow manifolds is important for the design of heat exchangers. The pressure drop along the flow in the header is the most influential factor in flow distribution. Various continuous models available in literature have failed to satisfactorily predict the pressure distribution in the headers of the flow manifolds. In this article, a discrete model matching the real physical phenomena has been proposed, to predict the pressure distribution in headers. An experimental evaluation of relevant flow characteristic parameters has been carried out to support the discrete model calculations. The validity of the theoretical discrete model has been performed with experimental results, under specific conditions. Refined experimental probes, for pressure heads with ultrasonic measuring devices, have been used to obtain accurate results. The experimental results fully substantiate the soundness of the theoretical prediction. In addition, the advantage of the ability to accommodate local disturbances in the discrete model has been pointed out. The effect of some local disturbances may be substantial. As a result of the analysis presented in this article, improved designs of flow manifolds in heat exchangers can be realized, to assure operation safety under severe operating conditions.

关键词： heat exchanger flow distribution flow manifold discrete model

Atomically dispersed Ni electrocatalyst for superior urea-assisted water splitting

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Journal of Energy Chemistry 2024年第3期90卷 1-6,I0002页

作者： fang luo Shuyuan Pan Yuhua Xie Chen Li Yingjie Yu Zehui Yang College of Materials Science and Engineering State Key Laboratory of New Textile Materials&Advanced Processing TechnologyWuhan Textile UniversityWuhan 430200China Hubei Hydrogen Energy Technology Innovation Center Faculty of Materials Science and ChemistryChina University of GeosciencesWuhan 430074HubeiChina

Urea oxidation reaction(UOR) has been selected as substitution for oxygen evolution reaction ascribing to its low thermodynamic voltage as well as utilization of nickel as ***,we report the formation of nickel single atoms(Ni-SAs) as exceptional bifunctional electrocatalyst toward UOR and hydrogen evolution reaction(HER) in urea-assisted water *** UOR catalysis,Ni-SAs perform a superior catalytic performance than Ni-NP/NC and Pt/C ascribing to the formation of HOO-Ni-N_(4) structure evidenced by in-situ Raman spectroscopy,corresponding to a boosted mass activity by 175-fold at 1.4 V *** than Ni-NP/***,Ni-SAs requires only 450 mV overpotential to obtain HER current density of 500 mA cm^(-2).136 mA cm^(-2) is achieved in urea-assisted water splitting at1.7 V for Ni-SAs,boosted by 5.7 times than Pt/C-IrO_(2) driven water splitting.

关键词： Urea oxidation reaction Hydrogen evolution reaction Nickel single atoms Water splitting

Miniaturized electrochemical sensors and their point-of-care applications

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Chinese Chemical Letters 2020年第3期31卷 589-600页

作者： Wei Zhang Ruiguo Wang fang luo Peilong Wang Zhenyu Lin Institute of Quality Standards and Testing Technology for Agro-products Chinese Academy of Agricultural SciencesBeijing 100081China MOE Key Laboratory for Analytical Science of Food Safety and Biology Fujian Provincial Key Laboratory of Analysis and Detection for Food SafetyCollege of ChemistryFuzhou UniversityFuzhou 350116China

Most of the current analytical methods depend largely on laboratory-based analytical techniques that require expensive and bullky equipment,potentially incur costly testing,and involve lengthy detection *** increasing requirements for point-of-care testing(POCT),more attention has been paid to miniaturized analytical *** electrochemical(MEC)sensors,including different material-based MEC sensors(such as DNA-,paper-,and screen electrode-based),have been in strong demand in analytical science due to their easy operation,portability,high sensitivity,as well as their short analysis *** have been applied for the detection of trace amounts of target through measuring changes in electrochemical signal,such as current,voltage,potential,or impedance,due to the oxidation/reduction of chemical/biological molecules with the help of electrodes and electrochemical *** sensors present great potential for the detection of targets including small organic molecules,metal ions,and *** recent years,MEC sensors have been broadly applied to POCT in various fields,including health care,food safety,and environmental monitoring,owing to the excellent advantages of electrochemical(EC)*** review summarized the state-of-the-art advancements on various types of MEC sensors and their applications in ***,the future perspectives,opportunities,and challenges in this field are also discussed.

关键词： Miniaturized electrochemical sensors Point-of-care testing DNA-based miniaturized electrochemical sensor Paper-based electrochemical sensor Microfluidics-based electrochemical sensor Miniaturized capillary electrophoresis-based sensor

A STUDY ON TRANSIENT FLUID FLOW OF HORIZONTAL WELLS IN DUAL-PERMEABILITY MEDIA

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Journal of Hydrodynamics 2010年第1期22卷 44-50页

作者： WANG Xiao-dong ZHOU Ying-fang luo Wan-jing School of Energy Resources China University of Geosciences Beijing 100083 China

To adopt horizontal wells in dual media reservoirs, a good understanding of the related fluid flows is necessary. Most of the recent studies focus on dual porosity media instead of dual permeability media. In this article, through both integral transformation and sink-source superposition, a new Laplace-domain solution is obtained for the slightly-compressible fluid flow in the 3-D dual-permeability media in which the horizontal well is operating in a constant rate of production. Major asymptotic characteristics of diagnosis curves of dimensionless downhole pressure are analyzed by the limited analysis. Effects of parameters of dual-permeability media including mobility ratio k, storativity ratio ω and inter-porosity flow parameter k on the downhote pressure are studied by using the Laplace numerical inversion. The new solution obtained in this article includes and improves the previous results and then can be used as a basis for either pressure transient analysis or formation behavior evaluation for the typical reservoir with horizontal wells.

关键词： horizontal well dual-permeability media fluid flow in 3-D porous media transient pressure analysis Laplacetransformation

Floating Properties of Agglomerated Inclusion in Liquid Steel

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Journal of Iron and Steel Research International 2013年第7期20卷 35-39页

作者： GUO luo-fang WANG Yao LI Hong LING Hai-tao State Key Laboratory of Advanced Metallurgy University of Science and Technology Beijing School of Metallurgical and Ecological Engineering University of Science and Technology Beijing

The fractal properties and floating features of agglomerated inclusions are investigated by the analysis of fractal theory and water simulation experiment. The results show that there is an obvious quantitative relationship between the aggregate floating velocity, the number of tiny inclusion granules and fractal dimension. Namely, for the aggregates which contain the same number of micro granules, the greater the fractal dimension, the larger the float-ing velocity; for the aggregates which have the same fractal dimension, the more the number of tiny inclusion gran-ules contained by an aggregate, the larger the floating velocity. The mathematical model obtained by regression anal-ysis can better reflect the relationship between the aggregate floating velocity, the number of tiny inclusion granules and fractal dimension. So in order to increase the floating velocity of aggregated inclusion with small fractal dimen-sion, some appropriate measures of making it reconstruct to increase its fractal dimension can he taken.

关键词： simulation experiment agglomerated inclusion tiny inclusion granule fractal dimension floating feature