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Results of selective decontamination with oral neomycin and metronidazole for major colorectal surgery in Australia:A cohort study

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Laparoscopic, Endoscopic and Robotic Surgery 2024年第2期7卷 72-78页

作者： James Wei Tatt Toh Devansh Shah Henry Wang Charlotte Kwik Joseph do Woong Choi Chelsie Leonie Beinke Paul Morris Eleni Baird-Gunning Geoffrey Peter Collins Fiona Gavegan Karen Shedden Toufic El-Khoury Nimalan Pathma-Nathan Kerry Hitos Department of Colorectal Surgery Westmead HospitalWestmeadNew South WalesAustralia The University of Sydney Westmead HospitalWestmeadNew South WalesAustralia Western Sydney University New South WalesAustralia University of Notre Dame New South WalesAustralia Westmead Research Centre for Evaluation of Surgical Outcomes Westmead HospitalSydneyAustralia

Objective The role of selective decontamination with oral antibiotics(OABs)and mechanical bowel preparation(MBP)prior to elective colorectal surgery is still widely *** objective of this study was to compare the outcomes of selective decontamination with neomycin,metronidazole and MBP compared to those of decontamination with MBP alone or with no *** Selective decontamination with neomycin and metronidazole combined with bowel preparation was introduced prior to elective colorectal surgery as part of an enhanced recovery after surgery program at Westmead Hospital,a major Australian tertiary referral hospital,between June 2017 and January *** between short-term outcomes of OAB+MBP and MBP/no preparation were made using prospectively collected data on length of stay(LOS),readmission,mortality within 30 days,anastomotic leakage(AL),surgical site infection(SSI),urinary tract infection,deep venous thrombosis and/or pulmonary embolism,pneumonia,and ***-up was limited to hospital stays and subsequent presentations within the health district within thirty days of *** Mann-Whitney U test was used to analyse continuous data,and the chi-square test was used for categorical *** and multivariate regression modelling was performed to identify risk factors associated with an increased likelihood of SSI and *** Patients with oral neomycin and metronidazole combined with bowel preparation had reduced superficial SSI(2.7%vs.7.6%,p=0.043)and overall complications(32.7%vs.44.6%,p=0.020),particularly Clavien-Dindo 1 complications(7.3%vs.16.5%,p=0.009).However,the differences in AL(2.7%vs.4.5%,p=0.369)and organ/space SSI(1.3%vs.3.7%,p=0.327)were not statistically *** median LOS(6 d vs.6 d,p=0.370)was not different between the *** Selective decontamination with neomycin and metronidazole reduces the risk of SSIs and overall *** was a trend to toward a lower AL,but this differ

关键词： Neomycin Metronidazole Colorectal surgery Anastomotic leakage Surgical site infection

Stability in Probability and Inverse Optimal Control of Evolution Systems Driven by Levy Processes

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IEEE/CAA Journal of Automatica Sinica 2020年第2期7卷 405-419页

作者： Khac Duc do School of Civil and Mechanical Engineering CurtinUniversity

This paper first develops a Lyapunov-type theorem to study global well-posedness(existence and uniqueness of the strong variational solution)and asymptotic stability in probability of nonlinear stochastic evolution systems(SESs)driven by a special class of Levy processes,which consist of Wiener and compensated Poisson *** theorem is then utilized to develop an approach to solve an inverse optimal stabilization problem for SESs driven by Levy *** inverse optimal control design achieves global well-posedness and global asymptotic stability of the closed-loop system,and minimizes a meaningful cost functional that penalizes both states and *** approach does not require to solve a Hamilton-Jacobi-Bellman equation(HJBE).An optimal stabilization of the evolution of the frequency of a certain genetic character from the population is included to illustrate the theoretical developments.

关键词： Evolution system inverse optimal control Levy processes stability in probability well-posedness

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郑可先生造型艺术教学探微

雕塑 2024年第2期 64-67页

作者：杜宏宇清华大学美术学院

1972年,郑可先生初次到邯郸市陶瓷公司研究所,组织为北京饭店建设所用的陶瓷装饰浮雕与陶瓷雕塑摆件的设计制作工作,公司分派我们1968年从北京市工艺美术学校毕业的四位同学配合郑可先生的工作,结合本次工作的内容,郑可先生从浮雕开始... 详细信息

1972年,郑可先生初次到邯郸市陶瓷公司研究所,组织为北京饭店建设所用的陶瓷装饰浮雕与陶瓷雕塑摆件的设计制作工作,公司分派我们1968年从北京市工艺美术学校毕业的四位同学配合郑可先生的工作,结合本次工作的内容,郑可先生从浮雕开始给我们上课。

关键词：教学探微工艺美术学校陶瓷雕塑陶瓷装饰陶瓷公司郑可设计制作造型艺术

On Hyers-Ulam-Rassias Stability of Functional Equations

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Acta Mathematica Sinica,English Series 2008年第3期24卷 353-372页

作者： Byung do KIM Department of Mathematics Kangnung National University Kangnung 210-702 Korea

In this paper, we investigate the stability of functional equation given by the pseudoadditive mappings of the mixed quadratic and Pexider type in the spirit of Hyers, Ulam, Rassias and Gavruta.

关键词： Hyers-Ulam-Rassias stability a functional equation pseudo-additive mappings of the mixed quadratic and Pexider type

Experimental and Modeling Studies on the Chemical Vapor Infiltration with Respect to the Effects of Thermal Gradient and Other Operating Parameters

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Journal of Wuhan University of Technology(Materials Science) 2018年第3期33卷 525-532页

作者： Kyung do Joo do Hoon Kim Gui Yung Chung Department of Chemical Engineering Hong Ik University

Effects of operating parameters in the thermal gradient chemical vapor infiltration of propane such as thermal gradient, diffusion, infiltrations time, and concentration of propane were studied by focusing on the visualizations of the intrinsic effects of these parameters. A uniform deposition in the preform was obtained with a gradually increasing temperature along the gas flow. The uniformity of deposition through the preform got improved with increasing deposition time. Results of numerical modeling estimated the experimental data very well when the pre-exponential factor of the overall rate of carbon deposition from propane reported by Vaidyaraman[1] was multiplied by 4. The average density of a preform increased by about 3 times from 0.38 to 1.15 g/cm3 after 60 hr deposition with a thermal gradient under the conditions of 3% propane in nitrogen and 840 to 900 ℃.

关键词： TG-CVI propane C/C composites uniform deposition mathematical modeling

Comparison between experimental and analytical results for seesaw energy dissipation systems using fluid viscous dampers

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Earthquake Engineering and Engineering Vibration 2016年第1期15卷 79-90页

作者： Jae-do Kang Hiroshi Tagawa Hyogo Earthquake Engineering Research Center National Research Institute for Earth Science and Disaster Prevention Graduate School of Engineering Hiroshima University

This paper presents results of experimental and numerical investigations of a seesaw energy dissipation system （SEDS） using fluid viscous dampers （FVDs）. To confirm the characteristics of the FVDs used in the tests, harmonic dynamic loading tests were conducted in advance of the flee vibration tests and the shaking table tests. Shaking table tests were conducted to demonstrate the damping capacity of the SEDS under random excitations such as seismic waves, and the results showed SEDSs have sufficient damping capacity for reducing the seismic response of flames. Free vibration tests were conducted to confirm the reliability of simplified analysis. Time history response analyses were also conducted and the results are in close agreement with shaking table test results.

关键词： seesaw energy dissipation system experimental verification shaking table test simplified analysis dynamiccharacteristic

Rare earth double activated phosphors for different applications

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Journal of Rare Earths 2010年第S1期28卷 1-11页

作者： Mihail Nazarov do Young Noh Department of Materials Science and Engineering Gwangju Institute of Science and Technology1 Oryong-dongBuk-guGwangju 500-712Republic of Korea

For the purpose of development of highly energy-efficient light sources,one needs to design highly efficient green,red and yellow phosphors,which are able to absorb excitation energy and generate *** this contribution,we present our results on producing some efficient phosphors with improved luminescence *** double activation,energy could be transferred from one luminescent activator to the other one,resulting in more efficient or brighter device ***-activators could be added to a host material to change the color of the emitted *** incorporation of Eu3+ or Tb3+ ions into the CaWO4 crystal lattice modified the luminescence spectrum due to the formation of the emission centers that generated the specific red and green *** efficient new red phosphors based on YNbO4 and doped by Eu3+,Ga3+,Al3+ allowed recommending these materials as good candidates for different applications including LED and X-ray intensifying *** double activated TAG with Ce3+ and Eu3+ and for different mole ratios of Ce/Eu,the color temperature changed from 5500 K(0.331,0.322) up to 4200 K(0.370,0.381) and the light became 'warmer'.Application of TAG:Ce,Eu in the light emitting device showed better chromaticity coordinates of luminescence and color rendering index of LEDs.

关键词： optical materials phosphors luminescence rare earths

Polymer donors with hydrophilic side-chains enabling efficient and thermally-stable polymer solar cells by non-halogenated solvent processing

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Nano Research Energy 2024年第1期3卷 19-29页

作者： Soodeok Seo Jun-Young Park Jin Su Park Seungjin Lee do-Yeong Choi Yun-Hi Kim Bumjoon J.Kim Department of Chemical and Biomolecular Engineering Korea Advanced Institute of Science and Technology(KAIST)Daejeon 34141Republic of Korea Department of Materials Engineering and Convergence Technology and ERI Gyeongsang National UniversityJinju 52828Republic of Korea Advanced Energy Materials Research Center Korea Research Institute of Chemical Technology(KRICT)Daejeon 34114Republic of Korea Department of Chemistry and ERI Gyeongsang National UniversityJinju 52828Republic of Korea

Polymer solar cells(PSCs)with high power conversion efficiency(PCE)and environment-friendly fabrication are the main requirements enabling their production in industrial *** the use of non-halogenated solvent processing is inevitable for the PSC fabrication,it significantly reduces the processability of polymer donors(PDS)and small-molecule acceptors(SMAs).This often results in unoptimized blend morphology and limits the device *** address this issue,hydrophilic oligoethylene glycol(OEG)side-chains are introduced into a PD(2EG)to enhance the molecular compatibility between the PD and L8-BO *** 2EG PD induces higher crystallinity and alleviates phase separation with the SMA compared to the reference PD(PM7)with hydrocarbon ***,the 2EG-based PSCs exhibit a higher PCE(15.8%)than the PM7-based PSCs(PCE=14.4%)in the ortho-xylene based ***,benefitted from the reduced phase separation and increased crystallinity of 2EG PDS,the 2EG-based PSCs show enhanced thermal stability(84%of initial PCE after 120 h heating)compared to that of the PM7-based PSCs(60%of initial PCE after 120 h heating).This study demonstrates the potential of OEG side-chain-incorporated materials in developing efficient,stable,and eco-friendly PSCs.

关键词： polymer solar cell polymer donor OEG side-chain non-halogenated solvent process side-chain engineering

Dynamic analysis of bio-inspired helicoid laminated composite plates resting on Pasternak foundation excited by explosive loading

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Defence Technology（防务技术） 2023年第12期30卷 126-140页

作者： Ngoc-Tu do Quoc-Hoa Pham Faculty of Mechanical Engineering Hanoi University of IndustryHanoiViet Nam Faculty of Engineering and Technology Nguyen Tat Thanh UniversityHo Chi Minh CityViet Nam

This paper uses isogeometric analysis(IGA)based on higher-order shear deformation theory(HSDT)to study the dynamic response of bio-inspired helicoid laminated composite(B-iHLC)plates resting on Pasternak foundation(PF)excited by explosive *** takes advantage of non-uniform rational Bspline(NURBS)basic functions to exactly represent the structure geometry models and the attainment of higher-order approximation *** method also ensures a C1 continuous function in the analysis of transverse shear deformation via ***,IGA eliminates the requirement for correction factors and delivers accurate *** foundation with two stiffness parameters:springer stiffness(k_(1))and shear stiffness(k_(2)).The derivation of the governing equations is based on Hamilton's *** proposed method is validated through numerical examples.A comprehensive analysis of the impact of geometrical parameters,material properties,boundary conditions(BCs),and foundation stiffness on dynamic response of B-i HLC plates is carried out.

关键词： Isogeometric analysis Pasternak foundation Dynamic response Laminated composite