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41篇 您的检索式:作者名="Chuncai"
    题名 作者 年代 出处 被引量
1Value of Multi-detector CT in Detection of Isolated Spontaneous Superior Mesenteric Artery Dissection显示文摘Objective To investigate the role of multi-detector computed tomography(CT) in the diagnosis and classification of isolated spontaneous superior mesenteric artery dissection(ISSMAD). Methods From July 2012 to December 2016,30 consecutive patients with ISSMAD underwent CT scan at least two times. We retrospectively summarized the clinical characteristics and CT findings of them. The stenosis ratio of true lumen was compared between the patients without bowel ischemia and ones with bowel ischemia. Results There were 5 cases of type I ISSMAD,14 cases of type Ⅱ,1 case of type Ⅲ,7 cases of type Ⅳ and 3 cases of type V. Intestinal ischemia occurred in 5 patients. The stenosis ratio of true lumen in the patients without bowel ischemia was lower than that with bowel ischemia(45.6% vs. 76.0%,t=–14.5,P=0.000). Five patients with intestinal ischemia underwent superior mesenteric artery stenting and others received conservative therapy. The abdominal pain was alleviated for all the patients after treatment. Follow-up was complete in 30 cases. Follow-up CT angiography of superior mesenteric artery showed dissection remodeling in 12 patients. Conclusion Multi-detector CT is a valuable method in diagnosis and classification of ISSMAD and monitoring the changes of dissection.Tao Li Shaohong Zhao Jinfeng Li Zili Huang Chuncai Luo Li Yang 2017Chinese Medical Sciences Journal2017,32,1:5
2Total conversion of centimeter-scale nickel foam into single atom electrocatalysts with highly selective CO_(2)electrocatalytic reduction in neutral electrolyte显示文摘To improve the atomic utilization of metals and reduce the cost of industrialization,the one-step total monoatomization of macroscopic bulk metals,as opposed to nanoscale metals,is effective.In this study,we used a thermal diffusion method to directly convert commercial centimeter-scale Ni foam to porous Ni single-atom-loaded carbon nanotubes(CNTs).As expected,owing to the coating of single-atom on porous,highly conductive CNT carriers,Ni single-atom electrocatalysts(Ni-SACs)exhibit extremely high activity and selectivity in CO_(2)electroreduction(CO_(2)RR),yielding a current density of>350 mA/cm^(2),a selectivity for CO of>91%under a flow cell configuration using a 1 M potassium chloride(KCl)electrolyte.Based on the superior activity of the Ni-SACs electrocatalyst,an integrated gas-phase electrochemical zero-gap reactor was introduced to generate a significant amount of CO current for potential practical applications.The overall current can be increased to 800 mA,while maintaining CO Faradaic efficiencies(FEs)at above 90%per unit cell.Our findings and insights on the active site transformation mechanism for macroscopic bulk Ni foam conversion into single atoms can inform the design of highly active single-atom catalysts used in industrial CO_(2)RR systems.Qikui Fan Pengfei Gao Shan Ren Yunteng Qu Chuncai Kong Jian Yang Yuen Wu 2023Nano Research2023,16,2:2
3Modified posterior soft tissue repair for the prevention of early postoperative dislocation in total hip arthroplasty显示文摘Yuntong Zhang Yang Tang Chuncai Zhang Xue Zhao Yang Xie Shuogui Xu 2013International Orthopaedics2013,,6:2
4Yolk-Shell Cu_(2)O@CuO-decorated RGO for High-Performance Lithium-Ion Battery Anode显示文摘Based on the great advantages of an inner hollow structure and excellent solid counterpart capacity,complex hierarchical structures have been widely used as electrodes for lithium-ion batteries.Herein,hierarchical yolk-shell Cu_(2)O@Cu O-decorated RGO(YSRs)was designed and synthesized via a multistep approach.Octahedron-like Cu_(2)O-decorated RGO was firstly produced,in which GO was reduced slightly while cuprous oxide was synthesized.Subsequently,the controlled oxidation of Cu_(2)O@RGO led to the synthesis of special YSRs,which were composed of a solid Cu_(2)O core,spur-CuO,CuO shell,and RGO covered.As anode materials,YSRs could provide considerable capacity density.Meanwhile,the void existed between shells and solid active materials retaining the advantages of inner hollow structure.As a result,the unique architecture of the materials renders the composites with enhanced electronic and ionic diffusion kinetics,high specific capacity(~894 m Ah g^(-1),0.1 C),and an excellent rate capability.Fangzhao Pu Yilu Bai Jian Lv Xintian Zhao Guanchen Wu Chuncai Kong Bosen Lei Xiaojing Zhang Hong Jin Zhimao Yang 2022Energy & Environmental Materials2022,5,1:2
5Inertial force balance and ADAMS simulation of the oscillating sieve and return pan of a rice combine harvester显示文摘To reduce the inertial force of the oscillating sieve and return pan of a rice combine harvester,partial equilibrium was adopted.Firstly,based on the kinematic analysis of a slider-crank mechanism,the appropriate mass of counterweight intervals was achieved.Then,an ADAMS dynamic simulation was used to determine the optimum balance mass of the oscillating sieve and return pan individually.Considering the relative motion between the return pan and the oscillating sieve,the overall inertial force of the two parts would be reduced.The simulation results indicated that the optimum counterweight of the oscillating sieve was 15.5 kg based on an analysis of the movement tracks of the mass center and overall inertial force.The results also showed that the overall balance of inertial force not only reduced the counterweight but also decreased the overall inertial force of the oscillating sieve and return pan.Finally,a search for the most suitable crank initial angle of the return pan to reduce the overall inertial force and optimize the overall balance revealed three groups of initial angles:φ=0°,φ=45°,andφ=90°.The results indicated that arranging the initial angle of the crank of the oscillating sieve and return pan in the same position(φ=90°)was the most favorable for reducing the overall inertial force.In this situation,the optimum counterweight of the oscillating sieve was only 14.0 kg.The results can provide references for the design of the overall balance of the inertial force in the cleaning components of a combine harvester.Chuncai Wei Lizhang Xu Jianting Wang Yaoming Li 2018International Journal of Agricultural and Biological Engineering2018,11,1:2
6Transformation behavior of mineral composition and trace elements during coal gangue combustion显示文摘Chuncai Zhou Guijian Liu Zhicao Yan Ting Fang Ruwei Wang 2012Fuel2012,,:2
7Treatment of tibial plateau fractures with high strength injectable calcium sulphate显示文摘Baoqing Yu Kaiwei Han Hui Ma Chuncai Zhang Jiachan Su Jie Zhao Jingfeng Li Yushu Bai Hao Tang 2009International Orthopaedics2009,,:1
8Room temperature continuous wave operation of quantum cascade laser atλ~9.4μm显示文摘Continuous wave(CW) operation of long wave infrared(LWIR) quantum cascade lasers(QCLs) is achieved up to a temperature of 303 K. For room temperature CW operation, the wafer with 35 stages was processed into buried heterostructure lasers. For a 2-mm-long and 10-μm-wide laser with high-reflectivity(HR) coating on the rear facet, CW output power of 45 m W at 283 K and 9 m W at 303 K is obtained. The lasing wavelength is around 9.4 μm locating in the LWIR spectrum range.Chuncai Hou Yue Zhao Jinchuan Zhang Shenqiang Zhai Ning Zhuo Junqi Liu Lijun Wang Shuman Liu Fengqi Liu Zhanguo Wang 2018Journal of Semiconductors2018,39,3:1
9Quantum cascade superluminescent light emitters with high power and compact structure显示文摘Quantum cascade(QC)superluminescent light emitters(SLEs)have emerged as desirable broadband mid-infrared(MIR)light sources for growing number of applications in areas like medical imaging,gas sensing and national defense.However,it is challenging to obtain a practical high-power device due to the very low efficiency of spontaneous emission in the intersubband transitions in QC structures.Herein a design of^5μm SLEs is demonstrated with a two-phonon resonancebased QC active structure coupled with a compact combinatorial waveguide structure which comprises a short straight part adjacent to a tilted stripe and to a J-shaped waveguide.The as-fabricated SLEs achieve a high output power of 1.8 mW,exhibiting the potential to be integrated into array devices without taking up too much chip space.These results may facilitate the realization of SLE arrays to attain larger output power and pave the pathway towards the practical applications of broadband MIR light sources.Jialin Sun Chuncai Hou Hongmei Chen Jinchuan Zhang Ning Zhuo Jiqiang Ning Changcheng Zheng Zhanguo Wang Fengqi Liu Ziyang Zhang 2020Journal of Semiconductors2020,41,1:1
10Design and Clinical Application of Proximal Humerus显示文摘Xu Shuogui Zhang Chuncai 0,,:1
113D-CTA and 3D- DSA for the diagnosis of intracranial aneurysms comparison analysis显示文摘Chen Aigui Wang Chuncai Yun Hong Yu 2014Journal of Clinical Rational Use of Drugs2014,20,25:1
12Biomechanical study of posteriorwall acetabular fracture fixation using acetabular tridimensional memory alloyfixation system显示文摘Liu Xinwei Xu Shuogui Zhang chuncai 2010Clinical Biomechanics2010,25,:1
13Fibular head osteotomy: A new approach for the treatment of lateral or posterolateral tibial plateau fractures显示文摘Baoqing Yu Kaiwei Han Ce Zhan Chuncai Zhang Hui Ma Jiachan Su 2010The Knee2010,,5:1
14High Output Performance and Ultra-Durable DC Output for Triboelectric Nanogenerator Inspired by Primary Cell显示文摘Triboelectric nanogenerator(TENG)is regarded as an effective strategy to convert environment mechanical energy into electricity to meet the distributed energy demand of large number of sensors in the Internet of Things(IoTs).Although TENG based on the coupling of triboelectrification and air-breakdown achieves a large direct current(DC)output,material abrasion is a bottleneck for its applications.Here,inspired by primary cell and its DC signal output characteristics,we propose a novel primary cell structure TENG(PC-TENG)based on contact electrification and electrostatic induction,which has multiple working modes,including contact separation mode,freestanding mode and rotation mode.The PC-TENG produces DC output and operates at low surface contact force.It has an ideal effective charge density(1.02 m Cm^(-2)).Meanwhile,the PC-TENG shows a superior durability with 99% initial output after 100,000 operating cycles.Due to its excellent output performance and durability,a variety of commercial electronic devices are powered by PC-TENG via harvesting wind energy.This work offers a facile and ideal scheme for enhancing the electrical output performance of DC-TENG at low surface contact force and shows a great potential for the energy harvesting applications in IoTs.Shaoke Fu Wencong He Huiyuan Wu Chuncai Shan Yan Du Gui Li Ping Wang Hengyu Guo Jie Chen Chenguo Hu 2022Nano-Micro Letters2022,14,9:1
15Value of D-Dimers in patients with acute aortic dissection显示文摘Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimers were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ ml, P < 0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD.Chuncai Xue Yigang Li 2007Journal of Nanjing Medical University2007,21,2:1
16Synthesis of organic-inorgnic hybrid sol-gel materials with low volume shrinkages 显示文摘Wei Yen Jin Danliang Yang Chuncai 1996Polym Mater Sci1996,74,:1
17Extended and improved Langmuir equation for correlating adsorption equilibrium data显示文摘Chuncai Yao 2000Separation and Pu- rification Technology2000,19,3:1
18Investigation on thermal and trace element characteristics during co-combustion biomass with coal gangue 显示文摘ZHOU Chuncai LIU Guijian FANG Ting 2015Bioresource Technology2015,175,:1
19A photopolymerized antimicrobial hydrogel coating derived from epsilon-poly-L-lysine 显示文摘Zhou Chuncai Li Peng Matthew W Chang 2011Biomaterials2011,32,:1
20Treatment of tibial plateau fractures with high strength injectable calcium sulphate显示文摘Baoqing Yu Kaiwei Han Hui Ma Chuncai Zhang Jiachan Su Jie Zhao Jingfeng Li Yushu Bai Hao Tang 2009International Orthopaedics2009,,4:1
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