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Search Results: 1 - 10 of 24618 matches for " Uk Jo "
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Vehicle License Plate Detection Method Based on Sliding Concentric Windows and Histogram
Kaushik Deb,Hyun-Uk Chae,Kang-Hyun Jo
Journal of Computers , 2009, DOI: 10.4304/jcp.4.8.771-777
Abstract: Detecting the region of a license plate is the key component of the vehicle license plate recognition (VLPR) system. A new method is adopted in this paper to analyze road images which often contain vehicles and extract LP from natural properties by finding vertical and horizontal edges from vehicle region. The proposed vehicle license plate detection (VLPD) method consists of three main stages: (1) a novel adaptive image segmentation technique named as sliding concentric windows (SCWs) used for detecting candidate region; (2) color verification for candidate region by using HSI color model on the basis of using hue and intensity in HSI color model verifying green and yellow LP and white LP, respectively; and (3) finally, decomposing candidate region which contains predetermined LP alphanumeric character by using position histogram to verify and detect vehicle license plate (VLP) region. In the proposed method, input vehicle images are commuted into grey images. Then the candidate regions are found by sliding concentric windows. We detect VLP region which contains predetermined LP color by using HSI color model and LP alphanumeric character by using position histogram. Experimental results show that the proposed method is very effective in coping with different conditions such as poor illumination, varied distances from the vehicle and varied weather.
The genetic polymorphisms of HER-2 and the risk of lung cancer in a Korean population
Uk Jo, Sle Han, Jae Seo, Kyong Park, Jae Lee, Hyo Lee, Jeong Ryu, Yeul Kim
BMC Cancer , 2008, DOI: 10.1186/1471-2407-8-359
Abstract: The frequencies of 4 polymorphisms of the HER-2 gene were examined by the polymerase chain reaction-restriction fragment length polymorphism or the single-nucleotide polymorphism-identification technology assay in the 407 lung cancer patients and 407 healthy controls.The frequencies of the 4 polymorphisms were not significantly different between patient and control groups in overall subjects. However, in the subgroup analysis, the 3 single nucleotide polymorphisms (-3444C>T, -1985G>T and P1170A C>G) showed statistically significant differences in the subgroups of females, non-smokers, and non-drinkers (p < 0.05). Additionally, we found the association between the risk of lung cancer and the polymorphisms of HER-2 gene in non-smoker subgroups with adenocarcinoma (p < 0.05).Our results suggest that the polymorphisms of the HER-2 gene are associated with an increased susceptibility to lung cancer in females, non-smokers and non-drinkers subgroups in the Korean population.Lung cancer is the worldwide leading cause of cancer-related death [1]. During the past decades, the rate of incidence and mortality of lung cancer in Korea have been increasing significantly and constantly[2]. Although lung cancer has been considered as a disease caused by smoking and environmental/occupational exposure, previous studies suggest that genetic factors may also contribute to the risk of lung cancer [3].Single nucleotide polymorphisms (SNPs) are the most common form of human genetic variation, and they may contribute to an individual's susceptibility to cancer [4,5]. Many previous studies have demonstrated that some polymorphisms of certain genes are associated with the risk of lung cancer, affecting either the gene expression or activities of enzymes [6-8].The HER-2 (also known as erbB-2 or neu and a member of the epidermal growth factor receptor family), proto-oncogene is located at chromosome 17q21 and encodes a transmembrane glycoprotein (p185) with tyrosine kinase activity [9,10]. So
Estimating the Recurrence Periods of Earthquake Data in Turkey  [PDF]
Hande Kon?uk, Serpil Akta?
Open Journal of Earthquake Research (OJER) , 2013, DOI: 10.4236/ojer.2013.21002
Abstract: In this paper, the 231 earthquake data of magnitude 5 and higher, between north (39.00o-42.00o) and east (26.00o-45.00o) coordinates in Turkey from July 12, 1900 to October 23, 2011 are statistically analyzed. The probability density function and cumulative function of the magnitude are derived. It is shown that magnitude random variable is distrib-uted as the exponential distribution. The recurrence periods is also calculated. Recurrence period is estimatedapproxi-matelytwo times a year for an earthquake having magnitude 5.2. Using the Gutenberg-Richter function, the relation between magnitude and frequency is represented.
Effects of pronatalist population measures in the Republic of Srpska in the municipalities with negative natural growth
uk Mira
Zbornik Matice Srpske za Drustvene Nauke , 2010, DOI: 10.2298/zmsdn1031067c
Abstract: Over the last years in the Republic of Srpska, a trend of negative population growth has been detected. Positive population growth has been identified only in four municipalities (two large and two small). The main reasons of the negative growth rate are population ageing and depopulation. The Government of the Republic of Srpska has been monitoring and analysing the situation and changes concerning demographic developments and it has also responded to that by undertaking various measures such as: institutionalised measures (establishing the Ministry of Family Affairs and Demographic Policy Council), incentive measures in the field of social policy, population education and measures for stimulating local communities to implement population policy measures. Local self-government units with distinct long-term problem of depopulation adopt their special measures. Effects of the abovementioned measures are shown by means of results of the research conducted in municipalities of East Herzegovina which is demographically deserted and have negative growth rate. The research covered families with the third and fourth child which enjoy the benefits of some population measures, as well as families which have got their first or second child for whom these measures should represent additional motivation to give birth to the third child. The research results prove that existing measures do not achieve expected goals and that the Republic of Srpska needs long-term and comprehensive measures in the field of economic, social, housing, education, cultural, national and migration policy. .
Effect of Different Salinity and Ration Levels on Growth Performance and Nutritive Physiology of Milkfish, Chanos chanos (Forsskal) – Field and Laboratory Studies
UK Barman
Fisheries and Aquaculture Journal , 2012,
Abstract: To investigate the effect of inland groundwater salinity, and two ration levels on growth performance and nutrition physiology in milkfish, Chanos chanos, two experiments (Experiment 1 and 2) were conducted. In the first experiment (Expt. 1), a 100-day monoculture of Chanos chanos at two different salinities (10 and 25‰) was carried out in ponds andthe fish were fed on two different (4% and 6% BW d-1) ration levels. Irrespective of the salinity treatment, low ration favored high growth in fish grown at 25 ppt salinity. Carcass composition revealed high accumulation of protein, fat, energy and phosphorus in fish fed at low ration level and maintained at 25 ppt salinity. Irrespective of the salinity treatment, DO, BOD, pH and nutrients remained significantly (P<0.05) higher in ponds where the fish were fed at low ration level.Multivariate analysis revealed a significant positive correlation of nutrients and productivity indicating parameters with fish weight gain. The second experiment (Expt. 2) was conducted under laboratory conditions and the milkfish fry were exposed to five different salinity levels (10.0, 15.0, 20.0, 25.0 and 30.0 ‰) for 100 days. A control in fresh water (0.0 ppt) was also maintained. Irrespective of the salinity treatment, significantly (P<0.05) high growth, feed conversion efficiency and intestinal enzyme activity were observed in fish maintained at low (4%) ration level. Carcass composition, muscle and liver glycogen levels, muscle protein, viscero-somatic index (VSI) and hepato-somatic index (HSI) values were also significantly (P<0.05) affected not only by the salinity treatment but also by the ration level. Studies indicated that low ration level and high salinity favored high growth in milkfish.
Colorectal Cancer Protection and Colonoscopy
UK Shrestha
Nepal Journal of Medical Sciences , 2012, DOI: 10.3126/njms.v1i1.5786
Abstract: DOI: http://dx.doi.org/10.3126/njms.v1i1.5786 Nepal Journal of Medical Sciences. 2012; 1(1): 1-2
Chronology and Sources of Lunar Impact Bombardment
Matija ?uk
Physics , 2011, DOI: 10.1016/j.icarus.2011.11.031
Abstract: The Moon has suffered intense impact bombardment ending at 3.9 Gyr ago, and this bombardment probably affected all of the inner Solar System. Basin magnetization signatures and lunar crater size-distributions indicate that the last episode of bombardment at about 3.85 Gyr ago was less extensive than previously thought. We explore the contribution of the primordial Mars-crosser population to early lunar bombardment. We find that Mars-crosser population initially decays with a 80-Myr half-life, with the long tail of survivors clustering on temporarily non-Mars-crossing orbits between 1.8 and 2 AU. These survivors decay with half-life of about 600 Myr and are progenitors of the extant Hungaria asteroid group in the same region. We estimate the primordial Mars-crosser population contained about 0.01-0.02 Earth masses. Such initial population is consistent with no lunar basins forming after 3.8 Gya and the amount of mass in the Hungaria group. As they survive longer and in greater numbers than other primordial populations, Mars-crossers are the best candidate for forming the majority of lunar craters and basins, including most of the Nectarian system. However, this remnant population cannot produce Imbrium and Orientale basins, which formed too late and are too large to be part of a smooth bombardment. We propose that the Imbrian basins and craters formed in a discrete event, consistent with the basin magnetization signatures and crater size-distributions. This late "impactor shower" would be triggered by a collisional disruption of a Vesta-sized body from this primordial Mars-crossing population (Wetherill, 1975) that was still comparable to the present-day asteroid belt a 3.9 Gya. This tidal disruption lead to a short-lived spike in bombardment by non-chondritic impactors with a non-asteroidal size-frequency distribution, in agreement with available evidence. [abridged]
Early initiation of low-dose corticosteroid therapy in the management of septic shock: a retrospective observational study
Hye Park, Gee Suh, Jae-Uk Song, Hongseok Yoo, Ik Jo, Tae Shin, So Lim, Sookyoung Woo, Kyeongman Jeon
Critical Care , 2012, DOI: 10.1186/cc10601
Abstract: We retrospectively analyzed the clinical data of 178 patients who received low-dose corticosteroid therapy for septic shock between January 2008 and December 2009. Time-dependent Cox regression models were used to adjust for potential confounding factors in the association between the time to initiation of low-dose corticosteroid therapy and in-hospital mortality.The study population consisted of 107 men and 71 women with a median age of 66 (interquartile range, 54 to 71) years. The 28-day mortality was 44% and low-dose corticosteroid therapy was initiated within a median of 8.5 (3.8 to 19.1) hours after onset of septic shock-related hypotension. Median time to initiation of low-dose corticosteroid therapy was significantly shorter in survivors than in non-survivors (6.5 hours versus 10.4 hours; P = 0.0135). The mortality rates increased significantly with increasing quintiles of time to initiation of low-dose corticosteroid therapy (P = 0.0107 for trend). Other factors associated with 28-day mortality were higher Simplified Acute Physiology Score (SAPS) 3 (P < 0.0001) and Sequential Organ Failure Assessment (SOFA) scores (P = 0.0007), dose of vasopressor at the time of initiation of low-dose corticosteroid therapy (P < 0.0001), need for mechanical ventilation (P = 0.0001) and renal replacement therapy (P < 0.0001), while the impaired adrenal reserve did not affect 28-day mortality (81% versus 82%; P = 0.8679). After adjusting for potential confounding factors, the time to initiation of low-dose corticosteroid therapy was still significantly associated with 28-day mortality (adjusted odds ratio (OR) 1.025, 95% confidence interval (CI) 1.007 to 1.044, P = 0.0075). The early therapy group (administered within 6 hours after the onset of septic shock, n = 66) had a 37% lower mortality rate than the late therapy group (administered more than 6 hours after the onset of septic shock, n = 112) (32% versus 51%, P = 0.0132).Early initiation of low-dose corticosteroid therapy
Finding Externalities: An Empirical Study on the US Agricultural Industry  [PDF]
Chong-Uk Kim, Gieyoung Lim
Modern Economy (ME) , 2013, DOI: 10.4236/me.2013.49063

This paper searches for another empirical evidence supporting positive externalities from higher education. Using state-level US data on agriculture and IT industries, we find that there are positive spillover effects from more-knowledge intensive workers in the IT industry to less-knowledge intensive workers in the agricultural industry. According to our empirical findings, one well-educated IT worker generates and contributes $11,000 to the agricultural industry, which implies that the benefits of higher education are diffused from education beneficiaries to the other member of society.

Photometric defocus observations of transiting extrasolar planets
Tobias C. Hinse,Wonyong Han,Jo-Na Yoon,Chung-Uk Lee,Yong-Gi Kim,Chun-Hwey Kim
Physics , 2015, DOI: 10.5140/JASS.2015.32.1.21
Abstract: We have carried out photometric follow-up observations of bright transiting extrasolar planets using the CbNUOJ 0.6m telescope. We have tested the possibility of obtaining high photometric precision by applying the telescope defocus technique allowing the use of several hundred seconds in exposure time for a single measurement. We demonstrate that this technique is capable of obtaining a root-mean-square scatter of order sub-millimagnitude over several hours for a V $\sim$ 10 host star typical for transiting planets detected from ground-based survey facilities. We compare our results with transit observations with the telescope operated in in-focus mode. High photometric precision is obtained due to the collection of a larger amount of photons resulting in a higher signal compared to other random and systematic noise sources. Accurate telescope tracking is likely to further contribute to lowering systematic noise by probing the same pixels on the CCD. Furthermore, a longer exposure time helps reducing the effect of scintillation noise which otherwise has a significant effect for small-aperture telescopes operated in in-focus mode. Finally we present the results of modelling four light-curves for which a root-mean-square scatter of 0.70 to 2.3 milli-magnitudes have been achieved.
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