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Donor-derived infections among Chinese donation after cardiac death liver recipients

World Journal of Gastroenterology 2017年第31期23卷 5809-5816页

作者： qi-Fa ye Wei Zhou qi-Quan Wan Department of Transplant Surgery the Third Xiangya Hospital of Central South University Department of Transplant Surgery Zhongnan Hospital of Wuhan University

AIM To investigate blood cultures of deceased donors and report the confirmed transmission of bacterial infection from donors to liver *** We retrospectively studied the results of blood cultures among our donation after cardiac death(DCD) donors and calculated the donor-derived bacterial infection rates among liver recipients. Study participants underwent liver transplantation between January 1, 2010 and February 1, 2017. The study involved a total of 67 recipients of liver grafts from 67 DCD donors. We extracted the data of donors' and patients' characteristics, culture results and clinical outcomes, especially the post-transplant complications in liver recipients, from electronic medical records. We analyzed the characteristics of the donors and the corresponding liver recipients with emphasis put on donor-derived *** Head trauma was the most common origin of death among our 67 DCD donors(46.3%). Blood taken prior to the procurement operation was cultured for 53 of the donors, with 17 episodes of bloodstream infections developing from 13 donors. The predominant organism isolated from the blood of donors was Gram-positive bacteria(70.6%). Only three(4.5%) of 67 liver recipients developed confirmed donor-derived bacterial infections,with two isolates of multidrug-resistant Klebsiella pneumoniae and one isolate of multidrug-resistant Enterobacter aerogenes. The liver recipients with donorderived infections showed relation to higher crude mortality and graft loss rates(33.3% each) within 3 mo post transplantation, as compared to those without donor-derived infections(9.4% and 4.7%, respectively). All three liver recipients received appropriate antimicrobial *** Liver recipients have high occurrence of donor-derived infections. The liver recipients with donor-derived multidrug-resistant Enterobacteriaceae infections can have good outcome if appropriate antimicrobial therapy is given.

关键词： Liver transplant Donation after cardiac death donor Infection Multidrug resistant Bacteria Transmission

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Stable 4.5 V LiCoO_(2)cathode material enabled by surface manganese oxides nanoshell

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Nano Research 2023年第2期16卷 2480-2485页

作者： Jun Wang si-Dong Zhang si-Jie Guo si-qi Lu Yan-Song Xu Jin-Yang Li An-Min Cao Li-Jun Wan CAS Key Laboratory of Molecular Nanostructure and Nanotechnology and Beijing National Laboratory for Molecular Sciences Institute of ChemistryChinese Academy of Sciences(ICCAS)Beijing 100190China University of Chinese Academy of Sciences(UCAS) Beijing 100049China

Charging the LiCoO_(2)(LCO)cathode to a higher voltage,for example 4.5 V compared to the commonly used 4.2 V,is now intensively pursued so as to achieve a higher specific ***,it suffers severe surface structural degradation and detrimental interfacial side reactions between cathode and electrolyte,which lead to the fast capacity fading during long-term ***,a surface coating strategy was developed for the protection of 4.5 V LCO by constructing a manganese oxides(MOs)nanoshell around LCO particles,which was achieved through a solution-based coating process with success in controlling the growth kinetics of the coating *** found that the introduction of the MOs nanoshell is highly effective in alleviating the organic electrolyte decomposition at the cathode surface,thus ensuring a much more stable LiF-rich cathode-electrolyte interface and an obvious lower interfacial resistance during electrochemical ***,this protection layer can effectively improve the structural stability of the cathode by hindering the cracks formation and structural degradation of LCO ***,the MOs modified LCO exhibited excellent rate performance and a high discharge capacity retention of 81.5%after 100 cycles at 1 C compared with the untreated LCO(55.2%),as well as the improved thermal stability and cyclability at the elevated *** is expected that this discovery and fundamental understanding of the surface chemistry regulation strategy provide promising insights into improving the reversibility and stability of LCO cathode at the cut-off voltage of 4.5 V.

关键词： lithium-ion battery 4.5 V LiCoO_(2) manganese oxides surface coating interfacial stability regulation

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The Key Laboratory of Coastal Wetland Biogeosciences

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China Geology 2019年第2期2卷 257-258页

作者： si-yuan ye Key Lab Coastal Wetland Biogeosci KLCWB 62 Fuzhounan Rd Qingdao 266071 Peoples R China

The Key Laboratory of Coastal Wetland Biogeosciences (KLCWB) was established in August 2012 and is incorporated into the qingdao Institute of Marine Geology, China Geological Survey, Ministry of Natural Resources. The KLCWB focus on the frontiers of international coastal wetland biogeology science and technology development, especially the hot topics in biological geology, environmental geology and ecological resources.

关键词： Key Laboratory of Coastal Wetland Biogeosciences(KLCWB) qingdao Marine Geology

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Readout system for ground-based tests of BGO calorimeter of DAMPE satellite

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Nuclear Science and Techniques 2017年第10期28卷 45-50页

作者： Jun-Bin Zhang Chang-qing Feng si-Yuan Ma qi Wang Shu-Bin Liu qi An State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern Physics University of Science andTechnology of ChinaHefei 230026China

A readout system for ground-based tests of the bismuth germanium oxide(BGO) calorimeter of the Dark Matter Particle Explorer satellite is described in this *** system mainly consists of a data acquisition board with a field-programmable gate array to implement the control logic, and a graphical user interface software based on LabWindows/CVI. The system has been successfully applied in a series of ground-based environmental experiments and almost all the performance tests throughout the entire manufacturing processes. These contribute significantly to the development of the BGO calorimeter before being submitted for satellite-level integration.

关键词：卫星地面测试读出系统 BGO LabWindows/CVI 现场可编程门阵列阻尼图形用户界面暗物质粒子

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Electrocatalytic Activity of Pt/C Electrodes for Ethanol Oxidation in Vapor Phase

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Chemical Research in Chinese Universities 2005年第5期21卷 597-600页

作者： LIANG Hong ye Dai-qi LIN Wei-ming School of Biological and Chemical Engineering Guangzhou University Guangzhou 510091 P. R. China School of Environment Science and Engineering South China University of Technology Guangzhou 510640 P. R. China

High performance platinized-carbon electrodes have been developed for the electrocatalytic oxidation of ethanol to acetaldehyde in electrogenerative processes. A load current density of the electrode can be achieved as high as 600 mA per square centimeter for oxygen reducing in 3 mol/L sulfuric acid with a good stability. With these electrodes and sulfuric acid as an electrolyte in fuel cells, ethanol vapor carried by nitrogen gas can be oxidized selectively to acetaldehyde. Selectivity of acetaldehyde depends on the potential of the cell and the feed rate of ethanol vapor and it can be more than 80% under optimized conditions. The initial product of ethanol oxidized on a platinized-carbon electrode is acetaldehyde and the ethanol oxidation mechanism is discussed.

关键词： Ethanol Platinum Electrocatalytic oxidation Acetaldehyde

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A tunable ferroelectric based unreleased RF resonator

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Microsystems & Nanoengineering 2020年第1期6卷 1334-1340页

作者： Yanbo He Bichoy Bahr Mengwei si Peide ye Dana Weinstein Purdue University West LafayetteINUSA Kilby Labs Texas InstrumentsDallasTXUSA

This paper introduces the first tunable ferroelectric capacitor(FeCAP)-based unreleased RF MEMS resonator,integrated seamlessly in Texas Instruments’130 nm Ferroelectric RAM(FeRAM)*** designs presented here are monolithically integrated in solid-state CMOS technology,with no post-processing or release step typical of other MEMS *** array of FeCAPs in this complementary metal-oxide-semiconductor(CMOS)technology’s back-end-of-line(BEOL)process were used to define the acoustic resonance cavity as well as the electromechanical *** achieve high quality factor(Q)of the resonator,acoustic waveguiding for vertical confinement within the CMOS stack is studied and *** design considerations are discussed to obtain lateral confinement and suppression of spurious *** FeCAP resonator is demonstrated with fundamental resonance at 703 MHz and Q of *** gives a frequency-quality factor product f·Q=7:11×10^(11) which is 1.6×higher than the most state-of-the-art Pb(Zr,Ti)O_(3)(PZT)*** to the ferroelectric characteristics of the FeCAPs,transduction of the resonator can be switched on and off by adjusting the electric *** this case,the resonance can be turned off completely at±0.3 V corresponding to the coercive voltage of the constituent FeCAP *** novel switchable resonators may have promising applications in on-chip timing,ad-hoc radio front ends,and chip-scale sensors.

关键词： resonator tunable switched

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Productive Traits and Triploid Rate Stability in Triploidy-Induced ‘Haida No. 2’ Strain of the Pacific Oyster, Crassostrea gigas

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Journal of Ocean University of China 2023年第1期22卷 229-234页

作者： LI Yongguo LI qi LIU ye XU Chengxun Key Laboratory of Mariculture Ministry of EducationOcean University of ChinaQingdao 266003China Laboratory for Marine Fisheries Science and Food Production Processes Qingdao National Laboratory for Marine Science and TechnologyQingdao 266237China

In order to evaluate the effects of triploidy induction on a selected strain‘Haida No.2’of the Pacific oyster Crassostrea gigas,which is characterized with golden shell color and high growth rate,the growth,survival rate and stability of triploid rate were analyzed at different development stages in the present *** different conditions inhibiting the release of polar body Ⅱ or polar body Ⅰ were tested:(A)Cytochalasin-B(CB),0.5mg L^(−1) at 10min post-insemination for 15 min;(B)CB,0.5mg L^(−1)at 15 min postinsemination for 20 min;and(C)CB,0.7mg L^(−1),at 15 min post-insemination for 20 *** triploidy induction treatments significantly reduced the D-larvae and survival rates at the larvae stage but not at the juvenile and adult *** rate dramatically decreased at the larval stage and did not significantly change at the juvenile and adult *** the stability of the triploid rate,there was a significant difference between the three treatment *** from the treatment A and control groups exhibited higher growth rates in shell height than those from the other two treatment groups at day *** juveniles and adults from the treatment A group exhibited a higher wet weight than diploids from the control group and triploids from the other treatment *** induction did not affect the shell color of the *** results obtained in the study demonstrate that triploidy induction has the potential to be used to increase the production of *** variety‘Haida No.2’without modifying its golden shell color.

关键词： Crassostrea gigas selective strain triploidy induction survival growth triploid rate stability

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Stabilization of an uncertain multiple-oscillator system

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Control Theory and Technology 2022年第3期20卷 361-370页

作者： Huawen ye Chengkun Li Xianting qi Jun Liu School of Automation Central South UniversityChangsha410083HunanChina

For a multiple-oscillator system that is subject to the uncertain gains ranging within compact sets,this paper presents a constructive stabilization *** by nested-saturation control methods,a nested controller that contains multiplicative coefficients is directly designed,and these coefficients are then determined in the stability *** skillfully making transformations,elaborately constructing Lyapunov functions,and using an M-matrix principle,the stability analysis leads to the explicit inequality condition that is expressed by directly using the system parameters.

关键词： Stabilization Uncertain multiple-oscillator systems M-matrix principle

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Pingchan granule for depressive symptoms in parkinson’s disease:A randomized,double-blind,placebo-controlled trial

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Journal of Integrative Medicine 2021年第2期19卷 120-128页

作者： si-chun Gu Jie Zhou qing ye Can-xing Yuan Department of Neurology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China

Background:Depression in Parkinson’s disease(dPD)is closely related to quality of *** studies have suggested that Pingchan Granule(PCG)might be effective for treating ***:This study determines the efficacy of PCG for depressive symptoms in Parkinson’s disease(PD).Design,setting,participants and interventions:This was a randomized,double-blind,placebo-controlled trial,conducted in Longhua Hospital,Shanghai,*** diagnosed with idiopathic PD and clinically significant depressive symptoms(defined by a 24-item Hamilton Rating Scale for Depression[HAM-D]score≥8)were included in this study,randomly assigned to PCG or placebo group in a 1:1 ratio and followed for 24 *** outcome measures:The primary outcome was the change from baseline to week 24 in HAM-D score among the set of patients who completed the study following the treatment protocol(per-protocol set).Secondary outcomes included changes in scores on the Unified Parkinson’s Disease Rating Scale(UPDRS)part 2(UPDRS-Ⅱ),UPDRS part 3(UPDRS-Ⅲ),Parkinson’s Disease Sleep Scale(PDSS)and Hamilton Rating Scale for Anxiety(HAM-A),between baseline and week ***:Eighty-six patients were enrolled,and 85 patients were included in the per-protocol ***-D scores decreased by an adjusted mean of 11.77(standard error SE 0.25)in the PCG group and 3.86(SE0.25)in the placebo group(between-group difference=7.91,95%confidence interval[7.22,8.80],Psive symptoms and motor and other non-motor symptoms in *** registration:Chinese Clinical Trial Register:ChiCTR-INR-17011949.

关键词： Pingchan granule Depression Parkinson’s disease Randomized controlled trial

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PEMFC Identification Based on a Fractional-Order Hammerstein State-Space Model with ADE-BH Optimization

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China Petroleum Processing & Petrochemical Technology 2023年第2期25卷 155-164页

作者： qin Hao qi Zhidong ye Weiqin Sun Chengshuo Nanjing University of Science and Technology Nanjing 210094China

Considering the fractional-order and nonlinear characteristics of proton exchange membrane fuel cells(PEMFC),a fractional-order subspace identification method based on the ADE-BH optimization algorithm is proposed to establish a fractional-order Hammerstein state-space model of ***,a Hammerstein model is constructed by connecting a linear module and a nonlinear module in series to precisely depict the nonlinear property of the *** the modeling process,fractional-order theory is combined with subspace identification,and a Poisson filter is adopted to enable multi-order derivability of the data.A variable memory method is introduced to reduce computation time without losing ***,to improve the optimization accuracy and avoid obtaining locally optimum solutions,a novel ADEBH algorithm is employed to optimize the unknown parameters in the identification *** this algorithm,the Euclidean distance serves as the theoretical basis for updating the target vector in the absorption-generation operation of the black hole(BH)***,simulations demonstrate that the proposed model has small output error and high accuracy,indicating that the model can accurately describe the electrical characteristics of the PEMFC process.

关键词： PEMFC Hammerstein model Fractional subspace identification ADE-BH optimization

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