Projektni indeks energetske učinkovitosti broda za prijevoz rasutog tereta

U novije vrijeme, povećanje osviještenosti po pitanju zaštite okoliša i interes za razvoj tehnoloških rješenja koja bi doprinijela smanjenju ispuštanja štetnih plinova nije zaobišao ni brodograđevnu industriju. U fazi osnivanja broda potrebno je obratiti posebnu pozornost na energetsku učinkovitost broda. Veličina kojom se izražava takva učinkovitost naziva se projektni indeks energetske učinkovitosti (EEDI). Od 1. siječnja 2013. godine, novi brodovi moraju zadovoljiti referentnu razinu EEDI-a za određeni tip broda. Razina emisije mora se pooštriti svakih pet godina. Zbog toga se očekuje da će EEDI potaknuti nastavak inovacija i tehnički razvoj svih komponenata koje utječu na energetsku učinkovitost broda. EEDI je izražen u gramima ugljičnog dioksida ( ) po prevezenoj toni i milji (što je manji EEDI brod je energetski učinkovitiji) i računa se pomoću izraza koji se temelji na tehničkim projektnim parametrima za određeni brod. U ovom radu analiziran je EEDI na primjeru broda za prijevoz rasutog tereta „Stoja“ koji je izgrađen u pulskom brodogradilištu Uljanik. Uz analizu dostupne literature, koja se prvenstveno odnosi na regulatorni okvir u području energetske učinkovitosti brodova, proveden je proračun EEDI-a za gore navedeni brod, kao i njegova usporedba sa zahtijevanom vrijednošću, oslanjajući se na proračunske veličine dobivene od brodogradilišta. Analiziran je utjecaj pojedinih proračunskih veličina na vrijednost EEDI-a, te općenito mogućnosti poboljšanja projekta s aspekta energetske učinkovitosti

Hierarchycal Decision Making Using the AHP Method

Rad se temelji na osnovnim rezultatima Thomasa L. Saatyja iz područja teorije odlučivanja. Predstavljena je potrebna teorijska podloga AHP metode kao i osnovni rezultati i njihovi dokazi koji su potrebni za njenu praktičnu upotrebu. U radu je obrađena, kao jedna od mogućih, metoda svojstvenog vektora. Za praktično rješavanje navedenom metodom uvedena je metoda potencija za numerički izračun svojstvenog vektora i svojstvene vrijednosti. Nakon što su ostvarene sve pretpostavke, u radu je predstavljeno programsko rješenje za rješavanje problema odlučivanja u obliku grafičkog sučelja koristeći AHP metodu za hijerarhiju s tri nivoa. Sinteza rada je primjer odabira kuće od nekoliko ponuđenih u odnosu na kriterije. Na samom kraju rada umetnut je programski kod praktičnog dijela rada.This paper is based on Thomas L. Saaty’s contributions to the decision theory. A necessary theoretical basis for AHP method is introduced, including general results and proofs. This paper presents the principal eigenvalue method as one of the given possibilities. Power method has been introduced for numerical calculating eigenvector and eigenvalue of interest. After all conditions have been fulfilled, in this paper we show software solution using graphical interface for solving decision problems for three-level hierarchy. Paper synthesis is an example of choosing a house among several with respect to the criterions. At last, we included program code for the practical part of the paper in an appendix

Energy efficiency design index of a bulk carrier

U novije vrijeme, povećanje osviještenosti po pitanju zaštite okoliša i interes za razvoj tehnoloških rješenja koja bi doprinijela smanjenju ispuštanja štetnih plinova nije zaobišao ni brodograđevnu industriju. U fazi osnivanja broda potrebno je obratiti posebnu pozornost na energetsku učinkovitost broda. Veličina kojom se izražava takva učinkovitost naziva se projektni indeks energetske učinkovitosti (EEDI). Od 1. siječnja 2013. godine, novi brodovi moraju zadovoljiti referentnu razinu EEDI-a za određeni tip broda. Razina emisije mora se pooštriti svakih pet godina. Zbog toga se očekuje da će EEDI potaknuti nastavak inovacija i tehnički razvoj svih komponenata koje utječu na energetsku učinkovitost broda. EEDI je izražen u gramima ugljičnog dioksida ( ) po prevezenoj toni i milji (što je manji EEDI brod je energetski učinkovitiji) i računa se pomoću izraza koji se temelji na tehničkim projektnim parametrima za određeni brod. U ovom radu analiziran je EEDI na primjeru broda za prijevoz rasutog tereta „Stoja“ koji je izgrađen u pulskom brodogradilištu Uljanik. Uz analizu dostupne literature, koja se prvenstveno odnosi na regulatorni okvir u području energetske učinkovitosti brodova, proveden je proračun EEDI-a za gore navedeni brod, kao i njegova usporedba sa zahtijevanom vrijednošću, oslanjajući se na proračunske veličine dobivene od brodogradilišta. Analiziran je utjecaj pojedinih proračunskih veličina na vrijednost EEDI-a, te općenito mogućnosti poboljšanja projekta s aspekta energetske učinkovitosti.Recently, the increase of awareness of environmental protection and interest in the development of technological solutions to reduce the release of harmful gases has not escaped the shipbuilding industry either. Special attention has to be paid to the ship's energy efficiency during the ship's design phase. The quantity to express ship's efficiency is called the Energy Efficiency Design Index (EEDI). As of January first 2013, new ships must meet the EEDI reference level, defined for a certain type of ship. The level of emitted must be sharpened every five years. Therefore, it is expected that EEDI will stimulate the continuos innovation and technical development of all components that will affect the energy efficiency of the ship. EEDI is expressed in grams of carbon dioxide ( ) per ton and mile transported (the smaller the EEDI the more energy efficient the ship is) and is calculated using a formula based on technical design parameters for a particular vessel. In this thesis, EEDI was analyzed on the example of the „Stoja“ bulk carrier that was built at the Uljanik shipyard in Pula. Along with the analysis of available literature, which is primarily concerned with the regulatory framework in the field of energy efficiency of ships, an EEDI calculation for the above-mentioned vessel was made, as well as its comparison with the required value, relying on the input data obtained from the shipyard. The impact of calculation parameters on the value of EEDI and the general improvement of the project's energy efficiency were analyzed

Projektno rješenje sustava grijanja, hlađenja i ventilacije supermarketa

U radu je dano rješenje instalacije grijanja, hlađenja i ventilacije za zgradu supermarketa ukupne korisne površine 1800 m2. Zgrada je smještena na području grada Zagreba. Rješenje grijanja i hlađenja je dano u dvije varijante. Prva varijanta je sa stropnim ventilokonvektorima dok je druga varijanta rješenje s podnim grijanjem/hlađenjem. Rješenje ventilacije je u oba slučaja isto. Ventilacija je izvedena pomoću dvije zasebne klima jedinice, kompaktne izvedbe smještene unutar objekta pod stropom. Toplinski i rashladni izvor je dizalica topline zrak-voda, koja radi u sprezi sa rashladnim postrojenjem za tehničko hlađenje robe u supermarketu i iskorištava toplinu kondenzacije. Postignuto je 100% iskorištenje otpadne topline dobiveno radom rashladnog multiseta za tehničko hlađenje. Procjena potrošnje energije za zgradu je dobivena pomoću norme HRN EN ISO 13790 mjesečnom metodom. Na kraju su uspoređene dvije varijante rješenja sa strane investicijskih i pogonskih troškova za jednu godinu korištenja. Na osnovu dobivenih rezultata vidljivo je da je rješenje podnog grijanja i hlađenja energetski učinkovitije, ali investicijski skuplje. Povrat investicije za slučaj rješenja podnoga grijanja/hlađenja u odnosu na rješenje grijanja/hlađenja sa stropnim ventilokonvektorima je 7,4 godine

Performance engineering for HEVC transform and quantization kernel on GPUs

Continuous growth of video traffic and video services, especially in the field of high resolution and high-quality video content, places heavy demands on video coding and its implementations. High Efficiency Video Coding (HEVC) standard doubles the compression efficiency of its predecessor H.264/AVC at the cost of high computational complexity. To address those computing issues high-performance video processing takes advantage of heterogeneous multiprocessor platforms. In this paper, we present a highly performance-optimized HEVC transform and quantization kernel with all-zero-block (AZB) identification designed for execution on a Graphics Processor Unit (GPU). Performance optimization strategy involved all three aspects of parallel design, exposing as much of the application’s intrinsic parallelism as possible, exploitation of high throughput memory and efficient instruction usage. It combines efficient mapping of transform blocks to thread-blocks and efficient vectorized access patterns to shared memory for all transform sizes supported in the standard. Two different GPUs of the same architecture were used to evaluate proposed implementation. Achieved processing times are 6.03 and 23.94 ms for DCI 4K and 8K Full Format, respectively. Speedup factors compared to CPU, cuBLAS and AVX2 implementations are up to 80, 19 and 4 times respectively. Proposed implementation outperforms previous work 1.22 times

Diagnosis of Visceral Leishmaniasis by Fine Needle Aspiration Cytology of an Isolated Cervical Lymph Node: Case Report

A 61-year-old woman presented with an isolated, painless, slightly enlarged right laterocervical lymph node without any other signs and symptoms of disease. Laboratory test including hematological and biochemical parameters were normal. A cervical ultrasonography demonstrated one lymph node (10 mm) on the right laterocervical side and one small reactive lymph node on the left laterocervical side. The fine needle aspiration (FNA) smears revealed a polymorphic population of cells composed of lymphocytes, histiocytes, epitheloid cells, plasma cell, tingible body macrophages and macrophages infiltrated with Leishmania amastigotes. Treatment was initiated with Stiboglukonat Na (Pentostam) and led to a full recovery

Diagnosis of Visceral Leishmaniasis by Fine Needle Aspiration Cytology of an Isolated Cervical Lymph Node: Case Report

A 61-year-old woman presented with an isolated, painless, slightly enlarged right laterocervical lymph node without any other signs and symptoms of disease. Laboratory test including hematological and biochemical parameters were normal. A cervical ultrasonography demonstrated one lymph node (10 mm) on the right laterocervical side and one small reactive lymph node on the left laterocervical side. The fine needle aspiration (FNA) smears revealed a polymorphic population of cells composed of lymphocytes, histiocytes, epitheloid cells, plasma cell, tingible body macrophages and macrophages infiltrated with Leishmania amastigotes. Treatment was initiated with Stiboglukonat Na (Pentostam) and led to a full recovery

Clinical and Epidemiological Characteristics of Brucellosis in Hospitalised Patients

Retrospektivno su analizirane kliničke i epidemiološke karakteristike bruceloze u 91 bolesnika koji su bili hospitalizirani u Klinici za infektivne bolesti u Tuzli od 1.1.2000. godine do 1.8.2008. godine. Definitivna dijagnoza bruceloze postavljena je na temelju pozitivnih rezultata hemokulture i/ili nekog od relevantnih seroloških testova (ELISA test, ROSE-BENGAL aglutinacija). Većina bolesnika bila je iz 5 općina Tuzlanskog kantona: Živinice, Tuzla, Lukavac, Kalesija, i Srebrenik, ukupno (81,3 %) bolesnika. Najveći broj bolesnika (93 %) bio je iz ruralne regije. Bilo je znatno više muškaraca (82,4 %). Većina bolesnika bila je u dobi od 20 – 29 godina i 50 – 59 godina po 25,3 %. Najviše bolesnika bilo je hospitalizirano u proljetnim mjesecima, travnju 24,1% i svibnju 23,0 %. Kontakt s inficiranim životinjama registriran je kod 82,4% bolesnika. Vodeći simptomi i znaci bolesti bili su povišena temperatura, bolovi u zglobovima, opća slabost, noćno znojenje, glavobolja, hepatosplenomegalija, a najvažniji patološki laboratorijski nalazi ubrzana sedimentacija eritrocita i povišena vrijednost C-reaktivnog proteina. Bolesnici su liječeni kombinacijom streptomicina ili gentamicina s doksiciklinom u odraslih, ili gentamicinom i trimetoprim-sulfametoksazolom u djece, u trajanju 6 tjedana. Komplikacije su dokumentirane u 23,0 % muškaraca i 1,1% žena. Orchiepididimitis je utvrđen u 6,5 %, pneumonija 4,3 %, periferni artritis 4,3%, spondilitis 3,2 %, sakroileitis 2,1 %, epiduralni absces u 2,1 % i spondilodiscitis u 1% bolesnika. Relaps je zabilježen u 13,1 % bolesnika. Svi bolesnici su izliječeni. Bruceloza je rastući javno-zdravstveni problem u Tuzlanskom kantonu, ali i šire u Bosni i Hercegovini.The clinical and epidemiological characteristics of brucellosis were retrospectively analysed in 91 patients hospitalised in the Clinic for Infectious Diseases at the University Clinical Centre Tuzla from January 1st 2000 to August 1st 2008. The diagnosis of brucellosis was confirmed by positive results of bloodculture and/or by serology testing (ELISA, Rose Bengal plate agglutination). The great majority, 74 (81,3 %), of the patients were from 5 municipalities of Canton Tuzla: Živinice, Tuzla, Lukavac, Kalesija and Srebrenik. The majority of patients (93,0 %) were inhabitants of rural regions. The males were significantly dominant (82,4 %). Most of the patients were in age group 20 – 29 years and 50 – 59 years (25,3 % respectively). The patients were mostly hospitalized during spring season, especially in April (24,1 %) and May (23,0 %). Contact with infected animals was registered in 82,4% of patients. The leading symptoms and signs of the disease were fever, arthralgias, weakness, night sweating, headache, hepatosplenomegaly, and the most important pathological laboratory findings were high erythrocyte sedimentation rate and elevated value of C-reactive protein. The adult patients were treated with a combination of streptomycin or gentamicin with doxycycline, and the children were treated with gentamicin and trimethoprim-sulfamethoxazole during 6 weeks. Complications were documented in 23,0 % of males and 1,1% of females. Orchiepididymitis was found in 6,5 %, pneumonia in 4,3 %, peripheral arthritis 4,3 %, spondylitis 3,2 %, coxitis 2,1 %, epidural abscess in 2,1 %, and spondylodiscitis in 1% of patients. Relapse of the disease was registered in 13,1 % of patients. All patients were cured. Brucellosis is a growing public health problem in Canton Tuzla and in Bosnia and Herzegovina

Human West Nile virus infection in Bosnia and Herzegovina

Aim To describe the first two cases of West Nile virus (WNV) neuroinvasive infections in Bosnia and Herzegovina. Methods At the Clinic for Infectious Diseases of the University Clinical Centre Tuzla, Bosnia and Herzegovina (B&H), specific screening for WNV infection was performed on patients with neuroinvasive diseases from 1 August to 31 October 2013. Serum samples were tested for the presence of WNV IgM and IgG antibodies using enzyme-linked immunosorbent assay (ELISA); positive serum samples were further analyzed by detection of WNV nucleic acid of two distinct lineages (lineage 1 and lineage 2) in sera by RT-PCR. Results Three (out of nine) patients met clinical criteria, and two of them had high serum titre of WNV specific IgM antibodies (3.5 and 5.2). Serum RT-PCR testing was negative. Conformation by neutralization testing was not performed. Both cases represented with encephalitis. None of these cases had recent travel history in WNW endemic areas, or history of blood transfusion and organ transplantation, so they represented autochthonous cases. Conclusion Although there were no previous reports of flavivirus infections in B&H, described cases had high titre of WNV specific antibodies in serum, and negative flavivirus-vaccination history, they were defined as probable cases because recommended testing for case confirmation was not performed. The West Nile virus should be considered a possible causative pathogen in this area, probably in patients with mild influenza-like disease of unknown origin and those with neuroinvasive disease during late summerand early autumn

FRET-Capture: A Sensitive Method for the Detection of Dynamic Protein Interactions

The FRET-Capture approach exploits a bound solvatochromic fluorophore, 4-N,N-dimethylamino-1,8-naphthalimide, as a FRET donor in both inter- and intramolecular energy transfer. A unique feature of this method is the additional level of signal selectivity as the FRET signal is only turned on when the donor is specifically bound to the protein of interest, eliminating high background and false positive signals.National Institutes of Health (U.S.) (Grant R01 EB010246