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Search Results: 1 - 10 of 1130 matches for " Zubi? Goran "
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Density and vulnerability of capercaillie (Tetrao urogallus) in the area of Vitoroga in the Republika Srpska
ZubiGoran
Glasnik ?umarskog Fakulteta , 2009, DOI: 10.2298/gsf0900071z
Abstract: Capercaillie is a threatened species over the greater part of Europe. The main causes of its vulnerability are, inter alia, habitat changes and forest operations. The aim of this paper is to estimate the capercaillie population size in the south-eastern part of Mt. Vitorog, and to make a comparative analysis of forest state so as to assess the impact of forest operations on this micropopulation. Its spring density (0.7-1.3 birds per km2) is lower compared to other Eurasian habitats (1.0-3.0 birds per km2). This was significantly contributed by the habitat changes and by the frequent disturbances of birds caused by forest operations. The present state of forests in FMU 'Vitoroga' is characterized by canopy thinning, changed mixture proportion (percentage of spruce increased on the account of fir), decrease in wood volume and increase in the number of smaller-diameter trees. Our results show that forestry operations are not harmonised with the biological demands of the capercaillie.
Bark stripping damage by red deer (Cervus elaphus L.) in the fenced rearing centre “Lomni ka Reka“
Ga?i? Dragan P.,Danilovi? Milorad,ZubiGoran,?irovi? Predrag
Glasnik ?umarskog Fakulteta , 2012, DOI: 10.2298/gsf1205035g
Abstract: Bark stripping damage is a serious problem in some forest hunting grounds in Serbia. This study aimed at assessing the incidence and intensity of bark stripping by red deer in the fenced rearing centre “Lomni ka Reka“ (Mt. Veliki Jastrebac, central Serbia). The data were collected by detailed surveying of the entire rearing centre over spring and autumn 2008, 2009 and 2010. Our results show that, in spring and summer, it is exclusively broadleaf tree species that are bark stripped by red deer, mainly beech (86.3% or 536 trees) and hornbeam (10.1% or 63 trees). The incidence and intensity of bark stripping were the highest in the diameter class of 20-39.9 cm. Damaged trees were identified in all parts of the rearing centre, at all aspects and at different slopes. Beech bark was stripped over the period May-August, with the focus in June or July.
MHD Heat and Mass Transfer of an Oscillatory Flow over a Vertical Permeable Plate in a Porous Medium with Chemical Reaction  [PDF]
Mohammad Al Zubi
Modern Mechanical Engineering (MME) , 2018, DOI: 10.4236/mme.2018.83012
Abstract: The problem of magneto-hydro-dynamic (MHD) mass and heat transfer of an oscillatory fluid in two-dimensional viscous, electrically conducting over an infinite vertical permeable moving plate in a saturated porous medium with the presence of a transverse magnetic field and chemical reaction is analytically presented. The governing equations, momentum, energy, and concentration are solved. Various flow parameters effects on velocity, temperature and concentration fields are discussed. It is found that, the fluid velocity increases with increasing both the permeability and chemical reaction parameters. While, it increases with decreasing the magnetic field parameter. Furthermore, the concentration increases with increasing chemical reaction parameters.
Improves Treatment Programs of Lung Cancer Using Data Mining Techniques  [PDF]
Zakaria Suliman Zubi, Rema Asheibani Saad
Journal of Software Engineering and Applications (JSEA) , 2014, DOI: 10.4236/jsea.2014.72008
Abstract:

Lung cancer is a deadly disease, but there is a big chance for the patient to be cured if he or she is correctly diagnosed in early stage of his or her case. At a first glance, lung X-ray chest films being considered as the most reliable method in early detection of lung cancers, the serious mistake in some diagnosing cases giving bad results and causing the death, the computer aided diagnosis systems are necessary to support the medical staff to achieve high capability and effectiveness. Clinicians could predict patient’s behavior future and improve treatment programs by using data mining techniques and they can be better managing the health of patients today, in addition they do not become the problems of tomorrow. The lung cancer biological database which contains the medical images (chest X-ray) classifies the digital X-ray chest films into three categories: normal, benign and malignant. The normal ones are those characterizing a healthy patient (non nodules);, lung nodules can be either benign (non-cancerous) or malignant (cancer). Two steps are major in computer-aided diagnosis systems: pattern recognition approach, which is a combination of a feature extraction process and a classification process using neural network classifier.

Genetic Differentiation of the Western Capercaillie Highlights the Importance of South-Eastern Europe for Understanding the Species Phylogeography
Marko Bajc, Miran ?as, Dalibor Ballian, Sa?a Kunovac, Goran Zubi, Marijan Grube?i?, Petar Zhelev, Ladislav Paule, Tine Grebenc, Hojka Kraigher
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0023602
Abstract: The Western Capercaillie (Tetrao urogallus L.) is a grouse species of open boreal or high altitude forests of Eurasia. It is endangered throughout most mountain range habitat areas in Europe. Two major genetically identifiable lineages of Western Capercaillie have been described to date: the southern lineage at the species' southernmost range of distribution in Europe, and the boreal lineage. We address the question of genetic differentiation of capercaillie populations from the Rhodope and Rila Mountains in Bulgaria, across the Dinaric Mountains to the Slovenian Alps. The two lineages' contact zone and resulting conservation strategies in this so-far understudied area of distribution have not been previously determined. The results of analysis of mitochondrial DNA control region sequences of 319 samples from the studied populations show that Alpine populations were composed exclusively of boreal lineage; Dinaric populations of both, but predominantly (96%) of boreal lineage; and Rhodope-Rila populations predominantly (>90%) of southern lineage individuals. The Bulgarian mountains were identified as the core area of the southern lineage, and the Dinaric Mountains as the western contact zone between both lineages in the Balkans. Bulgarian populations appeared genetically distinct from Alpine and Dinaric populations and exhibited characteristics of a long-term stationary population, suggesting that they should be considered as a glacial relict and probably a distinct subspecies. Although all of the studied populations suffered a decline in the past, the significantly lower level of genetic diversity when compared with the neighbouring Alpine and Bulgarian populations suggests that the isolated Dinaric capercaillie is particularly vulnerable to continuing population decline. The results are discussed in the context of conservation of the species in the Balkans, its principal threats and legal protection status. Potential conservation strategies should consider the existence of the two lineages and their vulnerable Dinaric contact zone and support the specificities of the populations.
Pipelined Viterbi Decoder Using FPGA
Nayel Al-Zubi
Research Journal of Applied Sciences, Engineering and Technology , 2013,
Abstract: Convolutional encoding is used in almost all digital communication systems to get better gain in BER (Bit Error Rate), and all applications needs high throughput rate. The Viterbi algorithm is the solution in decoding process. The nonlinear and feedback nature of the Viterbi decoder makes its high speed implementation harder. One of promising approaches to get high throughput in the Viterbi decoder is to introduce a pipelining. This work applies a carry-save technique, which gets the advantage that the critical path in the ACS feedback becomes in one direction and get rid of carry ripple in the “Add” part of ACS unit. In this simulation and implementation show how this technique will improve the throughput of the Viterbi decoder. The design complexities for the bit-pipelined architecture are evaluated and demonstrated using Verilog HDL simulation. And a general algorithm in software that simulates a Viterbi Decoder was developed. Our research is concerned with implementation of the Viterbi Decoders for Field Programmable Gate Arrays (FPGA). Generally FPGA's are slower than custom integrated circuits but can be configured in the lab in few hours as compared to fabrication which takes few months. The design implemented using Verilog HDL and synthesized for Xilinx FPGA's.
An Experimental Method to Determine the Cut-Off Frequency of an Acoustical Free Field in a Non-Ideal Environment  [PDF]
Mohammad Al Zubi
Open Journal of Acoustics (OJA) , 2018, DOI: 10.4236/oja.2018.81001
Abstract: The availability of ideal conditions like anechoic chamber to characterize some sound parameters, like sound intensity and sound power necessities the determination of free field and cut off frequency measurements. In this article, full experiment was executed at Wayne State University (Detroit-Michigan), to determine the cut off frequency in all directions; the obtained results showed that the free field can be determined for a specified space. So other tests can take place in this space avoiding regions where reflections and consequently noise can be found. Upon these results tests related to noise abatement in vehicles can be done in such environment.
Measurement of Sound Pressure Levels in Anechoic Chamber and a Noisy Environment Experimentally  [PDF]
Mohammad Al Zubi
Open Journal of Acoustics (OJA) , 2018, DOI: 10.4236/oja.2018.82002
Abstract: In real life, when a noise problem occurs, it is important to identify the cause and measure the noise of the source, since it may affect human beings or other constructions due to vibration generated from noise, so it is necessary to determine the noise related to a specific source like a machine in the presence of other sources which is a very important approach in noise control engineering. In this article a full experiment was executed to measure the sound pressure levels of various sources (stationary and non-stationary), in both an anechoic chamber and a non-ideal noisy environment. The sound pressure level was extracted for different sources and compared for both ideal and non-ideal environment. The results showed that acoustical free field of the space is the best field to do measurements to avoid reflection, on the other hand the difference between the source and the background should be more than 3 dB to get better results.
Hydrology and Water Harvesting Techniques of Wadi Muheiwir Catchment Area-The Case Study of Jordan
Jarrah Al-Zubi,Yasin Al- Zubi,Samih Abubaker
Journal of Applied Sciences , 2010,
Abstract: The study area is located in the Eastern parts of Jordan in semi arid area. The determination of flows has been done by applying the United States Soil Conservation Services (SCS). Curve number approach to the available rainfall data since 1976 till 2006 taking in consideration the Antecedent Moisture Conditions (AMC), the initial abstraction of rainfall and land use. The Curve Number (CN), was calculated from the topographic maps, geologic map and land use map. Therefore, the curve number 80 was found for Wadi Muheiwir catchment area. The calculations of the flood volumes for Wadi Muheiwir catchment area were determined and statistically analyzed by applying Gumble theory (distribution). The calculations and the results for 10, 25, 50,100 and 200 years return period were estimated. The long-term average runoff is 0.063 MCM. It ranges between zero and 0.544 MCM. Macro and micro water harvesting techniques suitability for Wadi Muheiwir were reviewed depending on the criteria used in the classification and its suitability for agricultural activity.
A Study of Benchmarking Influence on Customer Satisfaction
Dr.Hasan Ali Al-Zubi,Khaled Bany Hamdan,Hasan Ali Al-Zubi
International Journal of Business and Management , 2012, DOI: 10.5539/ijbm.v7n8p108
Abstract: This study aims to investigate the influence of benchmarking on the outcomes of customer satisfaction, loyalty within the Jordanian banks. The study population consists of employees working in them. A simple random sampling technique was used to select the respondents surveyed for this study with a total of 188 questionnaires administered to the chosen respondents. Statistical tools were used to test the hypothesis. The findings of this study indicate that there is a significant positive influence of benchmarking (Measurement, Comparison, Learning, and Adaptation) on customer satisfaction, the study also shows that customer satisfaction has a significant influence on customer loyalty within these banks.
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