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13 results on '"Uroić, T."'

3. Ship scale self propulsion cfd simulation results compared to sea trial measurements

Author

Vukčević, V., Hrvoje Jasak, Gatin, I., Uroić, T., Visonneau, Michel, Queutey, Patrick, and Le Touze, David

Subjects
Finite element method, Enginyeria naval, Marine engineering, Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits [Àrees temàtiques de la UPC], CFD, Ship Scale Self Propulsion, Sea Trial Validation, OpenFOAM
Abstract

CFD simulation results for self propelled full scale ship are compared to sea trial measurements in this work. Two–phase RANS based CFD numerical model used in this work is based on the Ghost Fluid Method for numerically robust treatment of discontinuities at the free surface and the algebraic Volume–of–Fluid method for interface capturing. The propeller is modelled as a pressure–jump based actuator disc, allowing CPU time efficient simulations while preserving the accuracy of integral results. The numerical model is implemented in foam–extend, a community driven fork of the OpenFOAM software. The comparison with sea trials includes achieved forward speed, thrust and torque for given shaft speed (in RPM) for a general cargo carrier.

Published
2017

4. Istraživanje kliničko-laboratorijskih parametara bakterijemije i sepse uzrokovane Escherichiom coli

Author

Škerk, Višnja, Bobinac, E., Popović-Uroić, T., and Schonwald, Slavko

Abstract

Analiziraju se klinička i laboratorijska obilježja 277 bolesnika s 279 epizoda E.coli-bakterijemije, liječenih u Klinici za infektivne bolesti "Dr.F.Mihaljević" u Zagrebu, od početka 1980. do kraja 1989. godine. Bolesnici su bili u dobi od 4 dana do 91 godine, 32% muškog i 68% ženskog spola. Većina bolesnika imala je kondicioniranu bolest u koje se smrtni ishod ne očekuje u idućih pet godina (57%) ili su bili posve zdravi (34%). Polimikrobnih bakterijemija bilo je 4%, a nozokomijalnih 13%. Ishodište bakterijemije bilo je klinički poznato u 84%. U izvanbolnički akviriranim bakterijemijama najčešće ishodište bio je urinarni trakt (78%), a u nozokomijalnim je ono najčešće ostalo nepoznato (54%). U šoku je bilo 24% bolesnika, a koagulacijske abnormalnosti registrirane su u 41%. Umrlo je 10% bolesnika. Smrtnost je bila viša u muškog spola (16:7%), u dobi do 2 mjeseca (29%) i iznad 60 godina (15%), u bolesnika s nozokomijalnom (49%), polimikrobnom (50%) i ponovnom (50%) bakterijemijom te u bolesnika s težim kondicioniranim bolestima (29-75%). Smrtnost nastala kao posljedica bakterijemije, kao i smrtnost nastala neovisno o bakterijemiji, bile su niže u bolesnika u kojih je primijenjena rana i adekvatna antimikrobna terapija. Ni u jednoj skupini bolesnika, razvrstanih prema težini kondicionirane bolesti, nije dokazana prednost primjene kombinirane antimikrobne terapije pred monoterapijom.

Published
1993

5. Bacteremia caused by beta-hemolytic group A streptococci

Author

Begovac, J, Gmajnicki, B, Kuzmanović, N, Bobinac, E, and Popović-Uroić, T

Subjects
bacteremia, streptococci, Zagreb
Abstract

The epidemiological, clinical and laboratory characteristic of group A beta-hemolytic streptococcal (GABHS) bacteremia in patients treated at the University Hospital of Infectious Diseases in Zagreb were analyzed. Of 51 cases of bacteremia due to GABHS seen over the past 15 years, 15 (29%) have been registered since 1987. The mean age of our patients was 25 years (range, 5 months to 87 years) ; and 29 (57%) were under 18. Ten (19%) patients died, 6 being less than 18 years of age. Forty-seven (92%) cases were community- acquired and 16 (32%) had underlying disease. Primary foci of infection, defined as a sites of inflammation that precedes bacteremia, included pharyngitis in 15 and erysipelas/cellulitis in 16 patients. Six patients had no focus of infection. Shock was recorded in 4 patients, all of whom died. Seven patients had a rash, in 5 the rash was typical of scarlet fever. Of the 6 children who died 4 were previously healthy and they all died within 24 hours following admission, and were sick at least 48 hours before admission to our hospital. Our experience suggests that serious GABHS infections may appear in children, that it requires prompt recognition and treatment and that a worldwide change in the virulence of GABHS may have occurred.

Published
1991

6. Promjene antimikrobne rezistencije iz krvi izoliranih sojeva Escherichiae coli u desetogodišnjem razdoblju

Author

Škerk, Višnja, Popović-Uroić, T., Bobinac, E., and Schonwald, Slavko

Abstract

U radu su analizirane promjene osjetljivosti 282 soja Escherichia coli (E.coli) izoliranih iz krvi bolesnika hospitaliziranih na Klinici za infektivne bolesti "Dr.F.Mihaljević" u Zagrebu, od 1.1.1980. do 31.12.1989. godine, s ukupno 35 nozokomijalnih i 244 izvanbolnički akviriranih bakterijemija. Od 1980. do 1986. godine rasla je proporcija E.coli sojeva rezistentnih na amplicin (35-84%) i karbenicilin (39-81%), a od 1980. do kraja 1987. godine na cefalosporine prve generacije (26-65%). Na kotrimoksazol je bilo rezistentno 6-27% sojeva, a na kloramfenikol 6-44%. Od 1980. do 1986. godine učestalost sojeva rezistentnih na tetracikline bila je 45-67%, a od 1987. do 1989. godine 13-22%. Rezistencija na gentamicin (3-7%) i na amikacin (8-11%) opažena je samo sporadično. Nije bilo rezistencije na cefalosporine treće generacije. U prve tri i posljednje dvije godine promatranog razdoblja prevladavali su vrlo dobro osjetljivi sojevi (32-52%), dok je 1985. i 1986. godine bio najviši postotak sojeva istovremeno rezistentnih na četiri i više antimikrobnih sredstava (39-53%). U usporedbi s izvanbolnički akviriranim sojevima, sojevi E.coli izolirani iz krvi bolesnika s nozokomijalnim bakterijemijama bili su češće rezistentni na amplicin, gentamicin i cefalosporine prve generacije, uz očitovanje rezistencije na tri, četiri i pet antimikrobnih sredstava istovremeno. Svrha ovog rada je odrediti antimikrobnu osjetljivost iz krvi izoliranih sojeva E.coli na najčešće primjenjivana antimikrobna sredstva, kao i utvrditi eventualne promjene učestalosti rezistentnih sojeva na pojedina antimikrobna sredstva i učestalost multiplorezistentnih sojeva u desetogodišnjem razdoblju.

Published
1991

8. DEVELOPMENT OF AN AUTOMATED PROCESS FOR TURBINE BLADE OPTIMISATION

Author

Uroić, T., Šojat, B., Hrvoje Jasak, and Manolis Papadrakakis, Eugenio Onate, Bernhard Schrefler

Subjects
Finite element method, Turbomachinery, Optimisation, Genetic Algorithm, OpenFOAM, Elements finits, Mètode dels, Coupled problems (Complex systems) -- Numerical solutions, Matemàtiques i estadística::Anàlisi numèrica::Mètodes en elements finits [Àrees temàtiques de la UPC]
Abstract

In this paper we present a fully automated procedure for turbine blade op- timisation. Optimisation process consists of geometry parametrisation using B-splines, mesh deformation using the dynamic mesh library in OpenFOAM, numerical simulation of transonic flow through the blade passage and finding the feasible solutions with the Multi-Objective Genetic Algorithm (MOGA). The process proved to be robust whether starting the optimisation from unfeasible geometry or a conventional blade profile.

10. [Clinico-laboratory parameters of bacteremia and sepsis caused by Escherichia coli].

Author

Skerk V, Bobinac E, Popović-Uroić T, and Schönwald S

Subjects
Adolescent, Adult, Aged, Child, Child, Preschool, Cross Infection diagnosis, Female, Humans, Infant, Infant, Newborn, Male, Middle Aged, Bacteremia complications, Bacteremia diagnosis, Bacteremia drug therapy, Escherichia coli Infections complications, Escherichia coli Infections diagnosis, Escherichia coli Infections drug therapy
Abstract

Clinical and laboratory features were analyzed in 277 patients with 279 episodes of E. coli bacteremia, treated at the University Hospital of Infectious Diseases "Dr Fran Mihaljević"c, Zagreb between 1980 and 1989. Patients ranged in age from 4 days to 91 years. Thirty-two per cent of patients were male and 68% were female. The majority of patients had underlying disease which was considered not to be fatal within the next five years (57%) or they were completely healthy (34%). Four per cent of bacteremias were polymicrobic and 13% were considered nosocomial in origin. The clinical source of bacteremia was known in 84%. In community-acquired bacteremia, the urinary tract was the most frequent site of origin (78%) and in nosocomial-acquired bacteremia the source could not be identified (54%). Septic shock occurred in 24% of the patients and coagulation abnormalities were observed in 41% of the patients. Fatal outcome was registered in 10% of the patients. Mortality was higher among males (16%:7%) up to 2 months of age (29%) and above 60 years (15%), and in those with nosocomial-acquired bacteremia (49%), polymicrobial (50%) and recurrent bacteremia (50%), as well as in patients with severe underlying disease (29-75%). Mortality was lower in patients who were given an early appropriate antimicrobial therapy. The advantage of combinations of antimicrobial therapies over monotherapy could not be demonstrated among patients in each category of severity of underlying host disease.

Published
1993

11. Angiomyolipoma in the transplanted kidney. A case report.

Author

Mosunjac M, Sćukanec-Spoljar M, Popović-Uroić T, and Manojlović S

Subjects
Hemangioma blood supply, Humans, Kidney blood supply, Kidney pathology, Kidney Neoplasms blood supply, Lipoma blood supply, Male, Middle Aged, Hemangioma pathology, Kidney Neoplasms pathology, Kidney Transplantation pathology, Lipoma pathology
Abstract

Angiomyolipoma is a very rare benign renal tumor. This paper presents the autopsy finding of an angiomyolipoma in the transplanted kidney.

Published
1992
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12. [Bacteremia caused by beta-hemolytic group A streptococci].

Author

Begovac J, Gmajnicki B, Kuzmanović N, Bobinac E, and Popović-Uroić T

Subjects
Adolescent, Adult, Aged, Aged, 80 and over, Child, Child, Preschool, Humans, Infant, Middle Aged, Bacteremia complications, Bacteremia diagnosis, Bacteremia therapy, Streptococcal Infections complications, Streptococcal Infections diagnosis, Streptococcal Infections therapy, Streptococcus pyogenes
Abstract

The epidemiological, clinical and laboratory characteristic of group A beta-hemolytic streptococcal (GABHS) bacteremia in patients treated at the University Hospital of Infectious Diseases in Zagreb were analyzed. Of 51 cases of bacteremia due to GABHS seen over the past 15 years, 15 (29%) have been registered since 1987. The mean age of our patients was 25 years (range, 5 months to 87 years); and 29 (57%) were under 18. Ten (19%) patients died, 6 being less than 18 years of age. Forty-seven (92%) cases were community-acquired and 16 (32%) had underlying disease. Primary foci of infection, defined as a sites of inflammation that precedes bacteremia, included pharyngitis in 15 and erysipelas/cellulitis in 16 patients. Six patients had no focus of infection. Shock was recorded in 4 patients, all of whom died. Seven patients had a rash, in 5 the rash was typical of scarlet fever. Of the 6 children who died 4 were previously healthy and they all died within 24 hours following admission, and were sick at least 48 hours before admission to our hospital. Our experience suggests that serious GABHS infections may appear in children, that it requires prompt recognition and treatment and that a worldwide change in the virulence of GABHS may have occurred.

Published
1991

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