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Monteggia type-Ⅰequivalent fracture in a fourteen-month-old child:A case report

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World Journal of Clinical Cases 2021年第30期9卷 9228-9235页

作者： Ming-Lei li wei-Zheng Zhou lian-Yong li qi-wei li Department of Pediatric Orthopaedics Shengjing Hospital of China Medical UniversityShenyang 110004Liaoning ProvinceChina

BACKGROUND Monteggia and equivalent lesions are relatively rare but result in severe injuries in childhood,typically affecting children between 4 and 10 years *** diagnosis and treatment of an equivalent Monteggia lesion is more complicated than those of a typical Monteggia *** type of lesion may be challenging and may lead to serious complications if not treated *** Monteggia equivalent type I lesions have been reported in a few reports,all of which the patients were all over 4 years *** SUMMARY A 14-mo-old boy was referred to our clinic after falling from his bed 10 d *** regard to the clinical examination,an obvious swollen and angular deformity was noted on his right *** radiographs and reconstructed computed tomography scans showed a Monteggia type I fracture and *** resonance imaging(MRI)confirmed a type I Monteggia equivalent lesion consisting of ulnar fracture and Salter-Harris type I injury in the proximal *** radial head was still in the joint,and only the radial metaphysis was displaced *** reduction and pinning of both displaced radial and ulnar fractures achieved an excellent result with full *** We recommend MRI examination or arthrography during reduction,especially if the secondary ossification center has not appeared.

关键词： Children Monteggia fracture-dislocation Monteggia equivalent lesion Radial neck fracture Ulnar fracture Case report

Tribological behavior of magnetron sputtering CrMoN/MoS_2 composite coatings

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Acta Metallurgica Sinica(English Letters) 2012年第6期25卷 461-468页

作者： Yuelan DI Zhihai CAI Ping ZHANG Zhen YANG qi li wei SHEN Department of Equipment Remanufacturing Engineering Academy of Armored Forces Engineering Beijing100072 China

CrMoN composite coatings were deposited on the surface of the stainless steel by magnetron sputtering, then were treated by low temperature ion sulfuration. FESEM equipped with EDX was adopted to analyze the morphologies and compositions of the surface, cross-section and worn scar of the sulfuration layer. The valence states of the film surface were detected by XPS. The nano-hardness and nano-modulus of the layer were measured by a nano tester. The results of the friction and wear show that the CrMoN/MoS2 composite coating is a kind of ideal solid lubrication layer and possess an excellent antifriction and wear-resistance.

关键词： CrMoN/MoS2 Magnetron sputtering Low temperature ionsulfurizing Solid lubrication

X-linked osteogenesis imperfecta accompanied by patent ductus arteriosus:a case with a novel splice variant in PLS3

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World Journal of Pediatrics 2022年第7期18卷 515-519页

作者： Chuang qiu qi-wei li Lu Zhang Xiao-liang liu Department of Orthopaedics Shengjing Hospital of China Medical UniversityShenyangChina Department of Pediatric Orthopaedics Shengjing Hospital of China Medical UniversityShenyangChina Department of Clinical Genetics Shengjing Hospital of China Medical UniversityNo.36 Sanhao StreetShenyang 110004China

Osteogenesis imperfecta(OI),also known as brittle bone disease,is characterized by low bone mass and bone fragil-ity,which varies in severity from asymptomatic to perina-tal lethality[1].Most patients with OI experience recur-rent bone fractures with or without short stature,facial dysmorphism,and skeletal *** accompany-ing extraskeletal manifestations include blue sclerae,joint laxity,dentinogenesis imperfecta,and hearing *** 85-90%of patients with OI have mutations in either COL1A1 or COL1A2,which elicit defects in typeⅠ***,an X-linked subtype of OI that is unre-lated to collagen was identified and was attributed to muta-tions in the plastin 3 gene(PLS3)[2].

关键词： skeletal imperfect facial

Glucose biosensor based on new carbon nanotube–gold–titania nano-composites modifed glassy carbon electrode

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Chinese Chemical Letters 2013年第12期24卷 1087-1090页

作者： Yue-li Wu qi-wei li Xiao-Lu Zhang Xiao Chen Xue-Mei Wang School of Chemistry and Chemical Engineering Southeast University State Key Lab of Bioelectronics Southeast University

In this paper, a novel biosensor was prepared by immobilizing glucose oxidase （GOx） on carbon nanotube-gold-titania nanocomposites （CNT/Au/TiO2） modified glassy carbon electrode （GCE）. SEM was initially used to investigate the surface morphology of CNT/Au/TiO2 nanocomposites modified GCE, indicating the formation of the nano-porous structure which could readily facilitate the attachment of GOx on the electrode surface. Cyclic voltammogram （CV） and electrochemical impedance spectrum （EIS） were further utilized to explore relevant electrochemical activity on CNT]Au/TiO2 nanocomposites modified GCE. The observations demonstrated that the immobilized GOx could efficiently execute its bioelectrocatalytic activity for the oxidation of glucose. The biosensor exhibited a wider linearity range from 0.1 mmol L-1 to 8 mmol L^-1 glucose with a detection limit of 0.077 mmol L^- 1.

关键词： Biosensor Glucose oxidase CNT/Au/TiO2

Novel in situ biosynthesized fluorescent zinc nanoclusters for specific cellular bio-imaging

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Chinese Chemical Letters 2015年第11期26卷 1400-1402页

作者： Mei-Na Su Jing Ye qi-wei li Shui-Hong li wei Ge Xiao Chen Hui Jiang Xue-Mei Wang State Key Laboratory of Bioelectronics (Chien-Shiung Wu Lab) School of Biological Science and Medical Engineering Southeast University

It is well known that zinc ions play an indispensable role in the structure and function of a large number of biological process and relevant bio-macromolecules. When some cancers occurred, the relevant concentration of zinc ions considerably decreased. Since cancer cells have a completely different redox homeostasis from normal cells, in this contribution, we have explored the possibility of bio-imaging or labeling of cancer cells through the in situ biosynthesized zinc nanoclusters by cancerous cells. The results demonstrate that we can readily realize the in vivo fluorescent bio-imaging of cancer cells through the in situ biosynthesis of the biocompatible zinc nanoclusters from cancerous cells （i.e., Hela cervical carcinoma cell line and others） when target cells cultured with micromolar zinc gluconate solutions.

关键词： Flourescent bio-imaging of cancer cellsBiosynthesisZinc nanoclustersZinc ions

C band microwave damage characteristics of pseudomorphic high electron mobility transistor

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Chinese Physics B 2021年第9期30卷 599-605页

作者： qi-wei li Jing Sun Fu-Xing li Chang-Chun Chai Jun Ding Jin-Yong Fang School of Electronics and Information Northwestern Polytechnical UniversityXi'an 710129China China Academy of Space Technology(Xi'an) Xi'an 710100China Key Laboratory of Ministry of Education for Wide Band-Gap Semiconductor Materials and Devices School of MicroelectronicsXidian UniversityXi'an 710071China

The damage effect characteristics of GaAs pseudomorphic high electron mobility transistor(pHEMT)under the irradiation of C band high-power microwave(HPM)is investigated in this *** on the theoretical analysis,the thermoelectric coupling model is established,and the key damage parameters of the device under typical pulse conditions are predicted,including the damage location,damage power,*** the injection effect test and device microanatomy analysis through using scanning electron microscope(SEM)and energy dispersive spectrometer(EDS),it is concluded that the gate metal in the first stage of the device is the vulnerable to HPM damage,especially the side below the gate near the *** damage power in the injection test is about 40 dBm and in good agreement with the simulation *** work has a certain reference value for microwave damage assessment of pHEMT.

关键词： high power microwave pseudomorphic high electron mobility transistor damage mechanism C band low noise amplifier(LNA)

Process Analysis of Double Circuit Transmission line Trip-out on the Same Tower Due to lightning

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高压电器 2011年第9期47卷 31-36,43页

作者： DUAN Da-peng REN Zhi-gang WANG Peng YE Kuan CHANG Xiao-qi li wei Beijing Electric Power Research Institute Beijing 100075 China

In recent years,several failures of double circuit transmission line on the same tower due to lightning were happened in Beijing power *** it can be reclosed successful,the lightning strike caused a grave threat to the power grid *** cause of the accident and the accident process were studied for the sake of further understanding of the impact of lightning on power *** an example,110 kV double circuit transmission line(Xilong-line) was *** first,the system topology was *** the analysis on relay protection actions and the fault recorder data,over voltage on the insulator strings was *** on the analysis and the calculation,accident cause and the process were presented ***,it comes to the conclusion that the lightning failure was caused by *** wave of the lightning over voltage would spread to the not grounded neutral point of the transformers,and make the neutral protective gap breakdown,then cause freewheeling with the frequency of 50 *** results of the relay protection,the double circuit transmission line all tripped ***,the causes of the accident were proposed that included terrain features,large corner towers,strong thunderstorm weather and poor grounded contact of the tower.

关键词： double circuit transmission lines on the same tower lightning trip-out at the same time fault recorder over-voltage calculation lightning protection

Radiation effects of 50-MeV protons on PNP bipolar junction transistors

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Chinese Physics B 2022年第2期31卷 655-659页

作者： Yuan-Ting Huang Xiu-Hai Cui Jian-Qun Yang Tao Ying Xue-qiang Yu Lei Dong wei-qi li Xing-Ji li School of Materials Science and Engineering Harbin Institute of TechnologyHarbin 150001China

The effects of radiation on 3 CG110 PNP bipolar junction transistors(BJTs)are characterized using 50-Me V protons,40-Me V Si ions,and 1-Me V *** this paper,electrical characteristics and deep level transient spectroscopy(DLTS)are utilized to analyze radiation defects induced by ionization and displacement *** experimental results show a degradation of the current gain and an increase in the types of radiation defect with increasing fluences of 50-Me V ***,by comparing the types of damage caused by different radiation sources,the characteristics of the radiation defects induced by irradiation show that 50-Me V proton irradiation can produce both ionization and displacement defects in the 3 CG110 PNP BJTs,in contrast to 40-Me V Si ions,which mainly generate displacement defects,and 1-Me V electrons,which mainly produce ionization *** work provides direct evidence of a synergistic effect between the ionization and displacement defects caused in PNP BJTs by 50-Me V protons.

关键词： bipolar junction transistors electrical properties radiation defects synergistic effect

Converging Parallel Plate Flow Chambers for Studies on the Effect of the Spatial Gradient of Wall Shear Stress on Endothelial Cells

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Journal of Biosciences and Medicines 2014年第2期2卷 50-56页

作者： Yiling Lu wei-qi li Ilias Oraifige Wen Wang School of Engineering and Materials Science Queen Mary University of London London UK School of Engineering and Technology University of Derby Derby UK

Many in vitro studies focus on effects of wall shear stress (WSS) and wall shear stress gradient (WSSG) on endothelial cells, which are linked to the initiation and progression of atherosclerosis in the arterial system. limitation in available flow chambers with a constant WSSG in the testing region makes it difficult to quantify cellular responses to WSSG. The current study proposes and characterizes a type of converging parallel plate flow chamber (PPFC) featuring a constant gradient of WSS. A simple formula was derived for the curvature of side walls, which relates WSSG to flow rate (Q), height of the PPFC (h), length of the convergent section (L), its widths at the entrance (w0) and exit (w1). CFD simulation of flow in the chamber is carried out. Constant WSSG is observed in most regions of the top and bottom plates except those in close proximity of side walls. A change in Q or h induces equally proportional changes in WSS and WSSG whereas an alteration in the ratio between w0 and w1 results in a more significant change in WSSG than that in WSS. The current design makes possible an easy quantification of WSSG on endothelial cells in the flow chamber.

关键词： Parallel Plate Flow Chamber Wall Shear Stress Wall Shear Stress Gradient Atherosclerosis Endothelial Cell