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| 1 | Effect of abutment modeling on the seismic response ofbridge structures显示文摘Abutment behavior signifi cantly influences the seismic response of certain bridge structures.Specifi cally in the case of short bridges with relatively stiff superstructures typical of highway overpasses,embankment mobilization and inelastic behavior of the soil material under high shear deformation levels dominate the response of the bridge and its column bents.This paper investigates the sensitivity of bridge seismic response with respect to three different abutment modeling approaches.The abutment modeling approaches are based on three increasing levels of complexity that attempt to capture the critical components and modes of abutment response without the need to generate continuum models of the embankment,approach,and abutment foundations.Six existing reinforced concrete bridge structures,typical of Ordinary Bridges in California,are selected for the analysis.Nonlinear models of the bridges are developed in OpenSees.Three abutment model types of increasing complexity are developed for each bridge,denoted as roller,simplifi ed,and spring abutments.The roller model contains only single-point constraints.The spring model contains discrete representations of backfi ll,bearing pad,shear key,and back wall behavior.The simplifi ed model is a compromise between the effi cient roller model and the comprehensive spring model.Modal,pushover,and nonlinear dynamic time history analyses are conducted for the six bridges using the three abutment models for each bridge.Comparisons of the analysis results show major differences in mode shapes and periods,ultimate base shear strength,as well as peak displacements of the column top obtained due to dynamic excitation.The adequacy of the three abutment models used in the study to realistically represent all major resistance mechanisms and components of the abutments,including an accurate estimation of their mass,stiffness,and nonlinear hysteretic behavior,is evaluated.Recommendations for abutment modeling are made. | Ady Aviram Kevin R.Mackie Bozidar Stojadinovic | 2008 | Earthquake Engineering and Engineering Vibration2008,7,4: | 16 |
| 2 | Treatment of rectal prolapse in children with cow milk injection sclerotherapy:30-year experience显示文摘AIM:To evaluate the role and our experience of injecti-on sclerotherapy with cow milk in the treatment of rectal prolapse in children. METHODS:In the last 30 years (1976-2006) we made 100 injections of sclerotherapy with cow milk in 86 chil-dren. In this study we included children who failed to respond to conservative treatment and we perform ope-rative treatment. RESULTS:In our study we included 86 children and in all of the patients we perform cow milk injection sclerot-herapy. In 95.3% (82 children) of patients sclerotherapy was successful. In 4 (4.7%) patients we had recurrent rectal prolapse where we performed operative treatment. Below 4 years we had 62 children (72%) and 24 older children (28%). In children who needed operative trea-tment we performed Thiersch operation and without any complications. CONCLUSION:Injection sclerotherapy with cow milk for treatment rectal prolapse in children is a simple and effective treatment for rectal prolapse with minimal com-plications. | Mirko Zganjer Ante Cizmic Irenej Cigit Bozidar Zupancic Igor Bumci Ljiljana Popovic Antun Kljenak | 2008 | World Journal of Gastroenterology2008,14,5: | 8 |
| 3 | Electromagnetic Fields and Induced Voltages on Underground Pipeline in the Vicinity of AC Traction System显示文摘 | Bosko Milesevic Bozidar Filipovic-Grcic Tomislav Radosevic | 2014 | Journal of Energy and Power Engineering2014,8,7: | 8 |
| 4 | Mechanism of diarrhea in microscopic colitis显示文摘AIM: To search the pathophysiological mechanism of diarrhea based on daily stool weights, fecal electrolytes,osmotic gap and pH.METHODS: Seventy-six patients were included: 51 with microscopic colitis (MC) [40 with lymphocytic colitis (LC);11 with collagenous colitis (CC)]; 7 with MC without diarrhea and 18 as a control group (CG). They collected stool for 3 d. Sodium and potassium concentration were determined by flame photometry and chloride concentration by titration method of Schales. Fecal osmotic gap was calculated from the difference of osmolarity of fecal fluid and double sum of sodium and potassium concentration.RESULTS: Fecal fluid sodium concentration was significantly increased in LC 58.11±5.38 mmol/L (P<0.01)and CC 54.14±8.42 mmol/L (P<0.05) than in CG 34.28±2.98 mmol/L. Potassium concentration in LC 74.65±5.29 mmol/L (P<0.01) and CC 75.53±8.78 mmol/L (P<0.05) was significantly less compared to CG 92.67±2.99 mmol/L.Chloride concentration in CC 36.07±7.29 mmol/L was significantly higher than in CG 24.11±2.05 mmol/L (P<0.05).Forty-four (86.7%) patients had a secretory diarrhea compared to fecal osmotic gap. Seven (13.3%) patients had osmotic diarrhea.CONCLUSION: Diarrhea in MC mostly belongs to the secretory type. The major pathophysiological mechanism in LC could be explained by a decrease of active sodium absorption. In CC, decreased Cl/HCO3 exchange rate and increased chloride secretion are coexistent pathways. | Marijana Protic Njegica Jojic Daniela Bojic Svetlana Milutinovic Dusanka Necic Bozidar Bojic Petar Svorcan Miodrag Krstic Obren Popovic | 2005 | World Journal of Gastroenterology2005,11,35: | 5 |
| 5 | Problems in screening colorectal cancer in the elderly显示文摘AIM: To explore the problems in the screening of colorectal carcinoma in the elderly.METHODS: Three models of colorectal cancer prevention were examined: standard screening, active check-up of suspected cases and summons to have endoscopic checkup for previously diagnosed colorectal polyps. The study was performed among three groups of elderly individuals:Group 1 (167 cases), hospitalized asymptomatic individuals without symptoms in large intestines. Group 2 (612 cases):old individuals at home for the aged, out of which 32 showed symptoms of colon disorders; Group 3 (44 cases): elderly people with diagnosed polyps. As a result of 1788rectosigmoidoscopies, we identified 61 individuals with polyps, out of which 44 patients were over 65 years old.However, only 9 of these 44 individuals agreed to have the endoscopy performed again.RESULTS: One cancer and 13 polyps were detected in Group 1, and two polyps in Group 2. However, it should be noted that only eleven individuals from Group 2 agreed to have the endoscopy. In Group 3, there were no relapses of the polyps among the nine individuals who came back for the endoscopy.CONCLUSION: Poor understanding of the screening procedures is one of the greatest problems in early detection of the cancer in the aged. Paradoxically, the cooperation is better with hospitalized patients, than with 'successfully old'persons. | DavidoviM.Mladen Milosevic P.Dragoslav Zdravkovic Sanja Bojic Bozidar Djurica Snezana | 2003 | World Journal of Gastroenterology2003,9,10: | 4 |
| 6 | Effects of temperature and relative humidity on the germination of aphidopathogenous fungus Pandora neoaphidis conidia显示文摘 | Ivan Sivcev Bozidar Manojlovic | 1995 | Zastita Bilja1995,46,1: | 1 |
| 7 | Antimony film electrode for electrochemical stripping analysis显示文摘 | Samo B Hocevar Ivan Svancara Bozidar Ogorevc | 2007 | Anal Chem2007,79,22: | 1 |
| 8 | Antioxidative activity of phenolic compounds on the metal-ion breakdown of lipid peroxidation system显示文摘 | Bozidar L M Sonja M D Jasna M C | 1998 | Food Chemistry1998,61,4: | 1 |
| 9 | Construction of patient specific virtual models of medical phenomena 显示文摘 | Bozidar P Dusan H Damjan Z | 2005 | Inform atica2005,29,: | 1 |
| 10 | A novel amperometric method for antioxidant activity determination using DPPH free radical 显示文摘 | STJEPAN M DAMIR I BOZIDAR S G | 2005 | Bioelectrochemistry2005,68,2: | 1 |
| 11 | Fast Hybrid Simulation with Geographically Distributed Substructures显示文摘 | GILBERTO M BOZIDAR S JASON H | 2005 | Advances in Experimental Structural Engineering2005,18,1: | 1 |
| 12 | Comparion of survival between dia- betic and nondiabe tic patientson maintenance hemodialysis: A sin-gle-centre experience 显示文摘 | Sanjin R Luka Z Bozidar V | 2007 | Diabetes Research and Clinical Practice2007,75,2: | 1 |
| 13 | A novel amperometric method for antioxidant activity determination using DPPH free radical显示文摘 | STJEPAN M DAMIR I BOZIDAR S G | 2005 | Bioelectro Chemistry2005,68,2: | 1 |
| 14 | Modeling of macrosegregation in direct-chill casting of aluminum alloys:Estimating the influ-ence of casting parameters显示文摘 | Bozidar Sarler | 2005 | Materials Science and Engi-neering A2005,,: | 1 |
| 15 | Energy-based seismic design of structures using yield mechanism and target drift显示文摘 | Leelataviwat S Subhash C G Bozidar S | 2002 | ASCE J Struct Eng2002,,8: | 1 |
| 16 | Optimal power control, scheduling, and routing in UWB networks显示文摘 | Le Boudec Jean-Yves Radunovic Bozidar | 2004 | IEEE Journal on Selected Areas in Communications2004,22,7: | 1 |
| 17 | Antioxidative activity of phenolic compounds on the metal-ion breakdown of lipid peroxidation system显示文摘 | BOZIDAR L M SONJA M D JASNA M C | 1998 | Food Chemistry1998,61,4: | 1 |
| 18 | Antimony film electrode for electrochemical stripping analysis 显示文摘 | Samo B ldocevar Ivan Svancara Bozidar Ogorevc | 2007 | Analytical chemistry2007,79,22: | 1 |
| 19 | Corn parison of Static and Adaptive Models for Short-term Resi dential Natural Gas Forecasting in Croatia显示文摘 | Primoz Potocnik Bozidar Soldo Goran Sire unovio | 2014 | Applied Energy2014,,: | 1 |
| 20 | Comparison of survival between diabetic and nondiabetic patients on maintenance he modialysis; Asiagle-centre experience显示文摘 | Sanjin R Luka Z Bozidar V | 2007 | Diabetes Research and Clinical Practice2007,75,2: | 1 |