• Title/Summary/Keyword: Hot Place

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Garbage Collection Technique for Reduction of Migration Overhead and Lifetime Prolongment of NAND Flash Memory (낸드 플래시 메모리의 이주 오버헤드 감소 및 수명연장을 위한 가비지 컬렉션 기법)

  • Hwang, Sang-Ho;Kwak, Jong Wook
    • IEMEK Journal of Embedded Systems and Applications
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    • v.11 no.2
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    • pp.125-134
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    • 2016
  • NAND flash memory has unique characteristics like as 'out-place-update' and limited lifetime compared with traditional storage systems. According to out-of-place update scheme, a number of invalid (or called dead) pages can be generated. In this case, garbage collection is needed to reclaim invalid pages. Because garbage collection results in not only erase operations but also copy operations of valid (or called live) pages to other blocks, many garbage collection techniques have proposed to reduce the overhead and to increase the lifetime of NAND Flash systems. This techniques sometimes select victim blocks including cold data for the wear leveling. However, most of them overlook the cost of selecting victim blocks including cold data. In this paper, we propose a garbage collection technique named CAPi (Cost Age with Proportion of invalid pages). Considering the additional overhead of what to select victim blocks including cold data, CAPi improves the response time in garbage collection and increase the lifetime in memory systems. Additionally, the proposed scheme also improves the efficiency of garbage collection by separating cold data from hot data in valid pages. In experimental evaluation, we showed that CAPi yields up to, at maximum, 73% improvement in lifetime compared with existing garbage collections.

The Historical Study and Standard Traditional Cooking Methods of Sinsulro (신선로(열구자탕) 조리법의 역사적 고찰과 전통적 표준조리법의 제시)

  • 한복진
    • Journal of the East Asian Society of Dietary Life
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    • v.5 no.3
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    • pp.317-337
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    • 1995
  • "Sinsulro(신선로)" is the famous soup of Cho-sun Dynasty Royal Cuisine, and the original food name is "Yulgujatang(열구자탕)". The first record is on [Sumunsasul] (1740) and the origin history related with Hirang-Jung is on [Headongjukji] and [Chosunyorihak]. From the analysis with Royal banquet menu and 16 kinds of old culinary literatures, "Sinsulro" are contained 54 and 70 material items and used variety cooking methods. Soup base of "Sinsulro" is well boiled meat, shank, brisket, stomach and intestine of beef with water, Some of beef is made meatball and seasoned raw meat. Beef marrow and tripes and liver are sauted with egg. Dried abalone and sea cucumber are soaked in water and then cutting slices after well boiled. Sliced white fish fillet are sauted with egg. Egg white and egg yolk made to thin sheet on pan with oil. Dropwort made to one sheet with flour and egg. Radish are boiled with meat soup and other vegetable are cooked with boiled or sauted. Seeds of pinenut, gingko, walnut are used of decorative seasonings. Filling mehtods of the Sinsulro casserole, the first layer is seasoning raw beef meat, 2nd layer is cooked slice of meat and radish, 3rd layer is rectangle pieces of egg sheet and sauted fish and intestines of beef. The top layer is decorated with meatball and naked nuts. After hot soup is poured until top of the materials, buning charcoal put into the center fire place and then served.o the center fire place and then served.

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Spatial Analysis of the Difference between Real Crime and Fear of Crime (도시내 범죄발생과 범죄 두려움 위치의 공간적 차이 분석)

  • Heo, Sun-Young;Moon, Tae-Heon
    • Journal of the Korean Association of Geographic Information Studies
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    • v.14 no.4
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    • pp.194-207
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    • 2011
  • This study tries to find the possibility to prevent crime by improving urban spatial environment through the analysis of spatial environment property that mutually coincides or differs by comparing the place where crime actually occurs and the place where citizen is afraid of crime. The method of study is as follows. First, the ontents scope and method of study was established by theoretic investigation of case study related to crime. Second, as crime cannot be prevented by police power only, CPSCP(Citizen Participation System for Crime Prevention) was developed so that all citizen can cooperatively participate in the crime prevention anytime and anywhere. Third, the data on the place where people feel fear in the region was collected by directly indicating the place where citizen is afraid of crime in the space by utilizing CPSCP. Fourth, the place where crime actually occurs and the place where citizen is afraid of crime are redundantly analyzed for comparative analysis of 2 places. The result shows that environmental design improving physical environment of urban space is necessary to prevent crime and to eliminate the fear of crime. The CPSCP developed by this study which will be advanced to U-crime prevention system will contribute to making citizen's own neighborhood a smart safety city autonomously.

Carcass Characteristics, Chemical Composition and Fatty Acid Profile of the Longissimus Muscle of Bulls (Bos taurus indicus vs. Bos taurus taurus) Finished in Pasture Systems

  • do Prado, Ivanor Nunes;Aricetti, Juliana Aparecida;Rotta, Polyana Pizzi;do Prado, Rodolpho Martin;Perotto, Daniel;Visentainer, Jesui Vergilio;Matsushita, Makoto
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.10
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    • pp.1449-1457
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    • 2008
  • This experiment was carried out to evaluate the carcass characteristics, chemical composition and fatty acid profile of the Longissimus muscle (LM) of three cattle genetic groups (Purunã, PUR, 11; 1/2 Purunã vs. 1/2 British, PUB, 6 and 1/2 Charolais vs. 1/2 Caracu, CHC, 10) finished in pasture systems. The field work took place at the Lapa Research Farm of the Agronomic Institute of Paraná, in the city of Lapa, south Brazil. The animals were fed during the winter with corn silage, cottonseed meal, cracked corn, urea, limestone and mineral salts as sources of protein, as well as an energy supplement, in pasture systems of Brachiaria decumbens Stapf. The animal groups were slaughtered at 20 months of age, at 50122.6 kg live weight. CHC bulls had higher (p<0.05) final weight than PUR and PUB bulls. Hot carcass weight was similar (p>0.10) between PUR and PUB. Hot carcass dressing percentage was higher (p<0.05) for PUB bulls than for PUR and CHC bulls. On the other hand, hot carcass dressing percentage was similar (p>0.05) between PUR and CHC bulls. Fat thickness was similar (p>0.10) among all genetic groups. However, the Longissimus area of CHC bulls was greater (p<0.05) than in PUR and PUB genetic groups. The genetic groups did not affect (p>0.10) the marbling of Longissimus. There was no observed difference (p>0.10) in moisture, ash, crude protein and total cholesterol contents among the three genetic groups. On the other hand, the total lipid percentage was higher (p<0.05) for the PUB genetic group in comparison with PUR and CHC. CLA percentage was highest for PUR animals. However, total CLA amounts were not altered by the different genetic groups.

Performance Characteristics of Type II LiBr-H2O Absorption Heat Pump in Accordance with the Refrigerant Heat Exchanger Configuration (냉매 열교환기 구성방법에 따른 제 2종 흡수식 히트펌프의 성능 특성 변화에 관한 연구)

  • Lee, Chang Hyun;Yoon, Jun Seong;Kim, In Gwan;Kwon, Oh Kyung;Cha, Dong An;Bae, Kyung Jin;Kim, Min Su;Park, Chan Woo
    • Korean Journal of Air-Conditioning and Refrigeration Engineering
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    • v.29 no.7
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    • pp.373-384
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    • 2017
  • The objective of this study was to determine the effect of refrigerant heat exchanger on the performance of type II absorption heat pump performance using numerical analysis. Two heat exchange installation methods were used: solution to refrigerant and waste hot water to refrigerant. These methods were compared to the standard model of hot water flow without using refrigerant heat exchanger. When waste hot waters were bypassed to refrigerant heat exchanger, COP was not affected. However, steam mass generation rates were increased compared to those of the standard model. When solutions were bypassed to the refrigerant heat exchanger, results were different depending on the place where the solution rejoined. COP and steam mass generation rates were lower compared to those when waste heat water was passed to refrigerant heat exchanger. Thus, it is possible to obtain higher steam mass generation rates by using waste water and installing refrigerant heat exchanger.

Methodology of Extraction of Crime Vulnerable Areas Through Grid-based Analysis (격자망분석을 통한 범죄발생 취약지역 추출 기법)

  • Park, Jin Yi;Kim, Eui Myoung
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.33 no.4
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    • pp.221-229
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    • 2015
  • The urban crimes that threat individual's safety are parts of the serious social problems. However. the information of crime in Korea has only been provided by forms of hot spots around place of crime, or forms of crime statistics without positional information. Those could not provide enough information to users in identifying the vulnerable areas for substantive crimes. Therefore, this study suggested a methodology of extraction in criminal vulnerable areas by using the spatial information, the statistical information and the public sector information. The crime vulnerable areas were extracted through the grid-based spatial analysis and the overlapping analysis from each of the information. In fact, the extracted areas were able to provide detailed vulnerability information than the traditional hot spot-based crime information. Following the study, the extracted results in crime vulnerable areas have displayed highly coincide with Korea safety map, provided by national disaster management institute, which regards to be able to provide crime risk rating in terms of administrative business in future.

Fundamental Study for Development of Pre-Heater for Warm In-Place Recycling in Korea (국내 현장중온재생공법의 프리히터 개발을 위한 기초연구)

  • Kim, Dae-Hun;Kim, Seung-Hoon;Kwon, Soo-Ahn;Kim, Yongjoo;Lee, Jaejun
    • International Journal of Highway Engineering
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    • v.17 no.2
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    • pp.31-37
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    • 2015
  • PURPOSES : To design a pre-heater for warm in-place recycling equipment, three different heating systems were evaluated to determine their thermal efficiency. METHODS: In this study, a $30cm{\times}30cm{\times}15cm$ wheel-tracking specimen was used to measure the inner temperature as a function of the heating system. The inner temperature of the specimen was measured with a data logger at the surface, and at depths of 1cm, 2cm, 3cm, 4cm, and 5cm. To evaluate the thermal efficiency, the researchers used three different types of equipment, namely, IR, a heating wire, and a gas burner. RESULTS: The IR heating system exhibits a higher level of performance than the others to achieve the target temperature at a depth of 5cm in the specimen. The gas burner system was capable of heating the surface to a temperature of up to $600^{\circ}C$. The other types, however, cannot heat the surface up to 600. The thermal efficiencies were measured based on the laboratory conditions. CONCLUSIONS: To find the most effective system for application to the development of a pre-heater for warm in-place recycling, various systems (IR, heating wire, gas burner) were examined in the laboratory. As a result, it was found that the hot plate of a gas burner system provides the highest temperature at the surface of the asphalt but, of all the systems, the IR system provides the best internal temperature increase rate. Furthermore, a gas burner can age the asphalt binder of the surface layer as a result of the high temperature. However, the gas burner cannot attain the target temperature at 5cm. The IR system, on the other hand, is effective at increasing the internal temperature of asphalt.

Associating Factors on Energy Drinks Intake of Some Middle School Students in Incheon Area (인천지역 일부 중학생의 에너지 음료의 섭취 관련 영향요인)

  • Oh, Ji-Won;Jang, Jae-Seon
    • The Korean Journal of Food And Nutrition
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    • v.30 no.3
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    • pp.618-626
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    • 2017
  • The purpose of this study was to investigate the intake of energy drinks and awareness of caffeine among middle school students. The subject was 313 middle school in Incheon area. The questionnaire respondents are consisted of 133 male students and 180 female students. The recognition result that allowed multiple responses to energy drink types was recognized by hot six at 28.9%, followed by red bull 24.3%, monster energy 13.8%, wolf energy 8.0% and taurine soda 6.9%, respectively. There was a significant difference in the experience of energy drink intake, intake reason, intake time and place (p<0.05), but there was no significant difference in intake frequency and place (p>0.05). There were significant differences in experience and frequency of energy drink intake (p<0.05), but there was no significant difference in intake reason, choice criteria, intake time and place (p>0.05). The result of the perception of energy drinks according to gender was 2.25 points for male students and 2.61 points for female students in the question 'caffeine is also present in tea, green tea, cola and chocolate'. There was a significant difference between male and female students (p<0.05). As a result of the recogniton of energy drinks, "the appropriate amount of caffeine is cleared and the concentration improves." When asked, "low body weight is 2.24 points, normal 2.27 points, overweight 1.89 points, obesity 2.46 points (p<0.05). There was a statistically significant difference in body mass index (BMI) between the two groups (1.95 for low body weight, 2.10 for normal body weight, 1.62 for overweight and 2.43 for obesity). Regression analysis showed that $R^2=0.007$ and F=2.798, respectively. Significant differences were found at the significance level of p<0.05. Energy drink consumption expenditure(${\beta}=0.121$, p<0.05), sleep time(${\beta}=0.130$, p<0.05), and caffeine perception(${\beta}=-0.162$, p<0.05) were significant determinants of energy drinks intake.

Origin and Development of the Buddhist Rock Cave Temples of India - in Relation with Hinduism, Jainism, Ajivika - (인도 불교석굴사원의 사원과 전개 - 힌두교, 자이나교, 아지빅파의 관련과 함께 -)

  • Lee, Hee-Bong
    • Journal of architectural history
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    • v.17 no.4
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    • pp.129-152
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    • 2008
  • Early Buddhist rock cave temples of India, in spite of being an origin of Buddhist temples, has little been studied in Korea. After field studies and an interpretation of their forms in conjunction with religious life, precedent theories are supplemented and refuted as follows. Starting from the 2nd century B,C., Buddhist ascetic disciples digged residential rock caves, called vihara, for protection from monsoon rain and hot weather, A typical arrangement was settled -a courtyard type, with 3 side rows of tiny one-person bedroom and a front veranda with columns. Also digged were Chaitya caves, in line with viharas, to worship, which is the tumulus of Buddha's relics. I suggest that the original type of chaitya a simple circle cave with a stupa, suitable for circumambulating ceremonies. I refute the existing theory presenting Barabar caves of Ajivika as a chaitya origin, featuring empty circular room without a stupa. I also interpret a typical apsidal plan as being a simple result of adding a place of worshipping rites in front of the stupa. Enclosing columns around a cylindrical stupa is a result of reinforcing both the divine space and circumambulating ceremonies, with elongation toward hall. Finally the chaitya came to have a grandeur apsidal plan with high vault ceiling nave and a side aisle as in Western cathedrals with large frontal horseshoe arch windows. The Buddha image, which had become a new worshipping object, was integrated into the stupa and interior surface. First the stupa and then the statue was introduced to residential Viharas. Therefore, I suggest that the vihara should be renamed as 'chaitya' as a worshipping place, by establishing statue rooms without bedrooms at all. The functionally changed vihara is similar in form to a 'rectangular type of chaitya', little known and developed in different routes. A columned inner courtyard gradually becama an offering place, like Hindu mandapa, Buddhist caves ware changed to a kind of Tantric and Hindu temple by means of statue worshipping offering rituals.

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A Comparative Study on the DIF Zone Boundary Configuration by the Hot Spot Analysis Method (핫스팟 분석을 활용한 기반시설부담구역 지정방안에 관한 비교연구)

  • Kim, Seong-Hun;Choei, Nae-Young
    • Journal of Cadastre & Land InformatiX
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    • v.47 no.1
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    • pp.277-292
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    • 2017
  • The development impact fee (DIF) zoning is a very beneficial public tool to provide the pre-planned urban infrastructures in those areas where significant urban sprawl had already taken place. In order to guarantee its benefit, however, it is required to designate the zone boundaries accurately and consistently. This study, in this context, tries to test the validity of the 50m-grid suggested in the official DIF manual, and to compare an alternative Hot Spot Analysis tool with the existing Spatial Aggregation method in configuring the zone boundaries. The results indicate that, unlike the case of population growth rate, current 50m grid size could not be much adequate in the case of using the development-permit increase rate to configure the primary DIF zones. Also, the optimal grid sizes seem to differ in the cases of Spatial Aggregation and Hot Spot Analysis. Further extended studies, in this regard, seem necessary to check the validity of the existing grid-size criteria as well as the boundary configuration methods.