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| 1 | 基于红外通信的无线传感节点在漏缆检测中的应用显示文摘为了解决漏泄电缆检测过程中射频通信对实验有干扰的问题,设计了一种基于红外的通信节点。首先,根据漏泄电缆辐射场检测需求,采用可编程片上系统作为处理器,利用其内置的模拟及数字资源配合TFDU红外通信芯片构成通信节点,加入485总线构成通信网络,缩小体积,降低成本,提高可靠性。然后,详细介绍了红外通信方案及其实现方法。最后,结合漏泄电缆检测上位机软件对通信网络进行评测。实验数据表明,磁区通信性能良好。目前已运用于上海电缆研究所漏泄电缆自动检测系统。 | 于小强 杨晖 杨海马 宋磊磊 李军 V Zivkovic | 2014 | 传感技术学报2014,27,1: | 9 |
| 2 | Nitroglycerine effects on portal vein mechanics and oxidative stress in portal hypertension显示文摘AIM:Тo examine the effects of nitroglycerine on portal vein haemodynamics and oxidative stress in patients with portal hypertension.METHODS:Thirty healthy controls and 39 patients with clinically verified portal hypertension and increasedvascular resistance participated in the study.Liver di-ameters,portal diameters and portal flow velocities were recorded using color flow imaging/pulsed Doppler detection.Cross-section area,portal flow and index of vascular resistance were calculated.In collected blood samples,superoxide anion radical (O 2-),hydrogen per-oxide (H 2 O 2),index of lipid peroxidation (measured as TBARS) and nitric oxide (NO) as a marker of endothelial response (measured as nitrite-NO 2-) were determined.Time-dependent analysis was performed at basal state and in 10th and 15th min after nitroglycerine (sublingual 0.5 mg) administration.RESULTS:Oxidative stress parameters changed sig-nificantly during the study.H 2 O 2 decreased at the end of study,probably via O 2-mediated disassembling in Haber Weiss and Fenton reaction;O 2-increased signifi-cantly probably due to increased diameter and tension and decreased shear rate level.Consequently O 2-and H 2 O 2 degradation products,like hydroxyl radical,initi-ated lipid peroxidation.Increased blood flow was to some extent lower in patients than in controls due to double paradoxes,flow velocity decreased,shear rate decreased significantly indicating non Newtonian char-acteristics of portal blood flow.CONCLUSION:This pilot study could be a starting point for further investigation and possible implemen-tation of some antioxidants in the treatment of portal hypertension. | Andreja Vujanac Vladimir Jakovljevic Dusica Djordjevic Vladimir Zivkovic Mirjana Stojkovic Dragan Celikovic Nebojsa Andjelkovic Aleksandra Jurisic Skevin Dragan Djuric | 2012 | World Journal of Gastroenterology2012,18,4: | 7 |
| 3 | Inactive matrix Gla protein is elevated in patients with inflammatory bowel disease显示文摘BACKGROUND Matrix Gla protein(MGP)is a vitamin K dependent peptide which has an established role in suppression of vascular calcification.Recent studies have pointed to a possible link between immunomodulatory effect of MGP and inflammatory bowel disease(IBD).AIM To compare plasma levels of dephosphorylated and uncarboxylated MGP(dpucMGP)between IBD patients and controls.METHODS This cross-sectional study was conducted on 70 patients with IBD(30 patients with ulcerative colitis and 40 patients with Crohn’s disease)and 60 age and gender matching healthy controls.Plasma dp-ucMGP levels were analyzed from blood samples by CLIA method using IDS-iSYS InaKtif MGP(Immunodiagnostic Systems,Frankfurt,Germany)according to the manufacturer's instructions.fecal calprotectin(FC)levels were determined from stool samples by turbidimetric immunoassay method using Bühlmann fecal calprotectin turbo assay(Bühlmann Laboratories Aktiengesellschaft,Schonenbuch,Switzerland).Other parameters were analyzed according to the standard laboratory procedures.RESULTS Plasma levels of dp-ucMGP were significantly higher in patients with IBD compared to the healthy control group(629.83±124.20 pmol/mL vs 546.7±122.09 pmol/mL,P<0.001),and there was no significant difference between patients with Crohn’s disease and patients with ulcerative colitis(640.02±131.88 pmol/mL vs 616.23±113.92 pmol/mL,P=0.432).Furthermore,a significant positive correlation of plasma dp-ucMGP levels was found with both FC levels(r=0.396,P<0.001)and high sensitivity C-reactive protein(hsCRP)levels(r=0.477,P<0.001).Moreover,in the total study population a significant positive correlation was found between dp-ucMGP with age(r=0.210,P=0.016)and waist circumference(r=0.264,P=0.002).Multiple linear regression analysis showed that dp-ucMGP levels retained significant association with FC(β±SE,0.06±0.02,P=0.003).CONCLUSION Study results support experimental data of MGP immunomodulatory IBD effect and indicate potential involvement in the pathophysiology of the disease,and possibly extraintestinal manifestations. | Darko Brnic Dinko Martinovic Piero Marin Zivkovic Daria Tokic Marino Vilovic Doris Rusic Ivana Tadin Hadjina Christian Libers Sandro Glumac Daniela Supe-Domic Ante Tonkic Josko Bozic | 2020 | World Journal of Gastroenterology2020,26,32: | 5 |
| 4 | 一种在坐标系网格上实现动态波形显示的方法显示文摘为了实现对采样数据的显示,建立了一个基于STM32F103VET6和11cm(4.3in)TFT液晶模块组成的显示平台。针对动态波形和坐标系网格相交的点会被背景色填充掉的问题,提出了一种交点判别法,即对交点用网格颜色填充,非交点用背景色填充。通过在电缆参数集采控制系统中的实际应用,表明该方法能够解决网格被填充的问题,又避免了波形闪烁的现象,具有较好的实用性,满足动态波形显示的实时性要求。 | 李军 杨晖 杨海马 胡恒庆 于向飞 ZIVKOVIC V | 2013 | 液晶与显示2013,28,6: | 3 |
| 5 | Efficient adaptive density estimation per image pixel for the task of background subtraction显示文摘 | Zoran Zivkovic Ferdinand van der Heijden | 2005 | Pattern Recognition Letters2005,,7: | 2 |
| 6 | 基于激光在线测量滚筒内颗粒流崩塌角新方法显示文摘使用图像法测量崩塌角存在测量标准差大的问题(0.5°左右)。为了解决这个问题,采用一种新的基于动态散斑对比度的崩塌角在线测量方法和系统进行了理论分析和实验验证。当激光照射到滚筒内运动的颗粒上,在远场形成动态散斑,利用线阵CCD相机得到散斑随时间变化图像,通过分析散斑图像的对比度计算出颗粒流的速度波动,再找出两次崩塌的间隔时间,最后利用转速乘以间隔时间就可以得到崩塌角。实验中采用粒径为1mm^1.25mm的玻璃珠,分别采用动态散斑法和图像法测量了不同转速下的休止角的数据。结果表明,动态散斑对比度崩塌角在线法时空分辨率高,测得数据的标准差较小、重复性好、数据拟合的确定系数高。这一结果对滚筒内颗粒流的在线测量和科学研究是有帮助的。 | 盛旭波 杨晖 李然 马生 郑刚 ZIVKOVIC Vladimir | 2016 | 激光技术2016,40,3: | 2 |
| 7 | Purification and characterization of an alkaline lipase from Pseudomonas aeruginosa isolated from putrid mineral cutting oil as component of metalworking fluid显示文摘 | Ivanka Karadzic Akihiko Masui Lidija Izrael Zivkovic Nobuaki Fujiwara | 2006 | Journal of Bioscience and Bioengineering2006,,2: | 2 |
| 8 | Meta-analysis Of randomized, double-blind, placebo-controlled, efficacy and safety studies of mirtazapine versus amitriptyline in major depression 显示文摘 | Stahl S Zivkov M Reimitz pE | 1997 | Acta Psychiatr Scand1997,,: | 1 |
| 9 | Sensory neuropathy associated with rnetronidazole: Report of four cases and review of the literature显示文摘 | Zivkovic SA Lacomis D Giuliani MJ | 2001 | J Clinical Neuromuscular Disease2001,3,: | 1 |
| 10 | Kinetics and mechanism of Sb2S3 oxidation process显示文摘 | ZIVKOVIC Z STRBAC N GRUJICIC D BOYANOV B | 2002 | Thermochimica Acta2002,383,: | 1 |
| 11 | Efficient data association for view based SLAM using connected dominating sets 显示文摘 | BOOIJ O ZIVKOVIC Z KROSE B | 2009 | Robotics and Autonomous Systems2009,6,6: | 1 |
| 12 | Endothelial NOS G894 T and MMP-3 5A/6A gene polymorphisms and hypertension in Serbian population显示文摘 | DJURRIC T ZIVKOVIC M STANKOVIC A | 2005 | Journal of Clinical Laboratory A nalysis2005,19,24: | 1 |
| 13 | Risk factors and dis- tribution of symptomatic venous thromboembolism in total hip and knee replacements : prospective study 显示文摘 | Markovic -Denic L Zivkovic K Lesic A | 2012 | Int Orthop2012,36,6: | 1 |
| 14 | An analysis of isothermal phase change of phase change materiel within rectangular and cylindrical containers显示文摘 | ZIVKOVIC B FUJII I | 2000 | Solar Energy2000,70,1: | 1 |
| 15 | Kinetics of chalcopyrite leaching by sodium nitrate in sulphurie acid 显示文摘 | SOKIC M D MARKOVIC B ZIVKOVIC D | 2009 | Hydrometallurgy2009,95,34: | 1 |
| 16 | Microstructural characterization and computer simulation of conductivity in Si3N4-TiN composites显示文摘 | Zivkovic L Nikolic Z Boskovic S | 2004 | J Alloy Cornp2004,373,: | 1 |
| 17 | Efficient adaptive density estimation per image pixel for the task of background subtraction显示文摘 | ZIVKOVIC Z HEIJDEN F V D | 2006 | Pattern Recognition Letters2006,27,7: | 1 |
| 18 | Rapidly progressive stroke in a young adult with very low high-density-lipoprotein cholesterol显示文摘 | Zivkovic SA Lopez OL Zaretsky M | 2000 | J Neuroimaging2000,10,4: | 1 |
| 19 | Effects of DL-homocys-teine thiolactone on cardiac contractility, coronary flow, and oxidative stress markers in the isolated rat heart: the role of different gasotrans- mitters显示文摘 | Zivkovic V Jakovljevic V Pechanova O | 2013 | Biomed Res Int2013,2013,31: | 1 |
| 20 | Psychiatric symptoms associated with cortical-subcortical dysfunction in Alzheimer's disease显示文摘 | Lopez OL Zivkovic S Smith G | 2001 | J Neuropsychiatry Clin Neurosci2001,13,: | 1 |