Currently, portable equipment for recycling of waste asphalt concrete (ASCON) has been used. However, any air pollution control devices are not attached in the simple portable one. Thus, a lot of air pollutants have been produced from recycling processes of waste ASCON which resulted from aging of paved roads or repavement of roads. This study deals with a preliminary result of concentration analysis of air pollutants obtained from a pilot and a real recycling processes of waste ASCON using simple portable recycling equipment. Air pollutants were taken from 4 steps of the pilot recycling process including an initial heating by liquid petroleum gas (LPG), intermediate heating and melting (H&M) process, final H&M process, and pavement processes using recycled ASCON at the recycling site. Also, air pollutants were taken front 4 steps of the real recycling processes including an initial H&M, final H&M and mixing, loading of recycled ASCON to dump trucks, and at the recycling site after leaving the loaded dump trucks for real pavement sites. The air pollutants measured in this study include volatile organic compounds (VOCs), aldehydes, particulate matter (PM: PM1, PM2.5, PM7, PM10, TSP (total suspended particulate)). The identified concentrations of VOCs increased with increasing time or degree for H&M of waste ASCON. In particular, very high concentrations of the VOCs at the status of complete melting, which is exposed to the air, of the waste ASCON just before paving tv the recycled ASCON at the recycling site. Also, considerable amount of VOCs were identified from the recycling equipment after the dump trucks leaded by recycled ASCON leaved the recycling site for the pavement sites. The relative level of formaldehyde exceeded 80% of the aldehydes Identified in the recycling processes. This is because the waste ASCON is exposed to direct flame of LPG during H&M processes. The PM concentrations measured in the winter recycling processes, such as the loading and rotation processes of waste ASCON into/in the recycling equipment for H&M, were much higher than those in the summer ones. In particular, the concentrations of coarse particles such as PM7 and PM10 during the winter recycling were very high as compared those during the summer one.
Recently, huge stream data have been generated in real time from various applications such as wireless sensor networks, Internet of Things services, and social network services. For this reason, to develop an efficient method have become one of significant issues in order to discover useful information from such data by processing and analyzing them and employing the information for better decision making. Since stream data are generated continuously and rapidly, there is a need to deal with them through the minimum access. In addition, an appropriate method is required to analyze stream data in resource limited environments where fast processing with low power consumption is necessary. To address this issue, the sliding window model has been proposed and researched. Meanwhile, one of data mining techniques for finding meaningful information from huge data, pattern mining extracts such information in pattern forms. Frequency-based traditional pattern mining can process only binary databases and treats items in the databases with the same importance. As a result, frequent pattern mining has a disadvantage that cannot reflect characteristics of real databases although it has played an essential role in the data mining field. From this aspect, high utility pattern mining has suggested for discovering more meaningful information from non-binary databases with the consideration of the characteristics and relative importance of items. General high utility pattern mining methods for static databases, however, are not suitable for handling stream data. To address this issue, sliding window based high utility pattern mining has been proposed for finding significant information from stream data in resource limited environments by considering their characteristics and processing them efficiently. In this paper, we conduct various experiments with datasets for performance evaluation of sliding window based high utility pattern mining algorithms and analyze experimental results, through which we study their characteristics and direction of improvement.
Journal of the Korean Institute of Traditional Landscape Architecture
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v.30
no.1
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pp.113-124
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2012
The Confucian culture of the Chosun Dynasty has a great effect on the construction of ByeolSeo gardens. Among them, especially the gardens built in Gyeongsang Province areas, where a great number of Confucian scholars were produced in the beautiful natural environment, have maintained various heritage of Confucian culture established by the scholars. Along with the Nakdong River, we can find so many cultural assets of buildings such as head houses, ByeolSeo gardens, including the literary remains such as administrative certificates, poetry and prose, and records of pavilions, which show the trace of the scholars who followed the instructions of the doctrines of Chu-tzu. The Geumseonjeog located in Punggi County, Gyeongsangbuk Province, which was the ByeolSeo gardens possessed by Geumgye Whang Jun-ryang(1517-1563), who was the governor of the area and one of the representative students of Toigye Lee Whang. The building is located nearby the Geumseon Valley with beautiful natural scenery under Sobaek Mountain. Especially the pine forest around the valley boasts a unique natural setting. This study is aimed to analyze the value of natural scenic spot of the Geumseonjeong through the surveys on surroundings, topography, vegetation and water system. including the value of humanistic elements focused on the writings such as 'Geumgyejip' written by Whang Jun-ryang and Lee Whang, another 'Geumgyejip' written by Ryu un-ryong, and 'Geumgyejeongsajungsugi' written by Hong Gyeong-ryeom. And also, the scenic spot value of the signboards such as the 'Geumgyejeongsajungsugi' written by Ryu un-ryong, 'Geumgyejeong' by Lee Han-il, 'Geumgyejeong' written by Jo Un-hyeong and 'Geumgyejeongsa, written by Lee Jung-gi, was analyzed. And the historical and cultural value was analyzed through the semantic interpretation of the series of poetry and pose and the old map established in 1872. In respect of the scenery, the surroundings of the Geumseon Valley boast the outstanding settings as the clean mountain stream in front of the Geumseonjeong makes a beautiful harmony with the pine forest. The pine forest surrounding the Geumseon Valley has played a secret role in the history of the village. Considering the fact that the pine forest was expressed in the map of Punggi County produced in 1872, it may be assumed that the forest was regarded to have historical and scenic value in those times. Considering the fact that the words like 'Beautiful' and 'Scenic spot' were used in the writings like 'Geumgyejip' and there were meeting places around the valley, we can recognize the value of the place as a scenic spot. The beautiful natural scenery surrounding the ByeolSeo gardens, and the increase in humanistic value of the poetry and prose, including the administrative certificates, has recently brought about the cases in which some scenic spots of the ByeolSeo gardens were designated as cultural assets. According to the value as a scenic spot and semantic interpretation of the Geumseonjeong, the pavilion appeared to have a great scenic spot value as a ByeolSeo gardens, so that this study was designed to prepare criteria with which the pavilion may be designated as a scenic spot of ByeolSeo gardens.
Hong, Yun Kyung;Chung, Chi Ryang;Paeck, Kyung Hyun;Kim, So Ri;Min, Kyung Hoon;Park, Seoung Ju;Lee, Heung Bum;Lee, Yong Chul;Rhee, Yang Keun
Tuberculosis and Respiratory Diseases
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v.61
no.5
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pp.433-439
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2006
Background: Although airway hyper-responsiveness is one of the characteristics of asthma. bronchial hyper-responsiveness has also been observed to some degree in patients with chronic obstructive pulmonary disease (COPD). Moreover, several reports have demonstrated that a number of patients have both COPD and asthma. The methacholine bronchial challenge test (MCT) is a widely used method for the detecting and quantifying the airway hyper- responsiveness, and is one of the diagnostic tools in asthma. However, the significance of MCT in differentiating asthma or COPD combined with asthma from pure COPD has not been defined. The aim of this study was to determine the role of MCT in differentiating asthma from pure COPD. Method: This study was performed prospectively and was composed of one hundred eleven patients who had undergone MCT at Chonbuk National University Hospital. Sixty-five asthma patients and 23 COPD patients were enrolled and their MCT data were analyzed and compared with the results of a control group. Result: The positive rates of MCT were 65%, 30%, and 9% in the asthma, COPD, and control groups, respectively. The mean $PC_{20}$ values of the asthma, COPD, and control groups were $8.1{\pm}1.16mg/mL$, $16.9{\pm}2.21mg/mL$, and $22.0{\pm}1.47mg/mL$, respectively. The sensitivity, specificity, positive predictive value, and negative predictive value of MCT for diagnosing asthma were 65%, 84%, 81%, and 69%, respectively. The sensitivity, specificity, positive predictive value, and negative predictive value of MCT (ed note: please check this as I believe that these values correspond to the one $PC_{20}$ value. Please check my changes.) at the new cut-off points of$PC_{20}{\leq}16mg/ml$, were 80%, 75%, 78%, and 78%, respectively. Conclusion: MCT using the new cut-off point can be used as a more precise and useful diagnostic tool for distinguishing asthma from pure COPD.
Numerous Researches on the Buddhist perspective of Wonhyo agree that the Mind is the core principle of Wonhyo's Buddihist perspective. Based on prior research, this paper identifies the philosophy of Mind-only(vijñaptimātratā) in the broader perspective, that is, "Mind is the first principle of the existence", as the core thought of Wonhyo. The objective of this paper is to reorganize the systematic theories of consciousness, one of the principle sectors of Wonhyo's philosophy of vijñaptimātratā. One can find most systematic texts of consciousness of Wonhyo in 『GiSilRonSo』 and 『GiSilRonByeolGi』. Although 『GeumGang SamMaeGyeongRon』 includes some interpretations of consciousness, it is difficult to formulate a consistent structure based on it. Beside tā.JangEui』, which discusses the meaning of vijñaptimātratā centering around affliction, Wonhyo's opinion about important issues of vijñaptimātratā philosophy such as ālayavijñāna, permeation, bījadharma, and aspects of perception appears in fragments. Thus, this paper focuses on 『GiSilRonSo』 and 『GiSilRon ByeolGi』, Wonhyo's interpretation of 『Awakening of Mahāyāna Faith』(大乘起信論), as well as 『IJangEui』, 『PanBiRyangRon』 and 『Geum GangSamMaeGyeongRon』. The researcher examines how one-mind, tathāgatagarbha, and ālayavijñāna become the principles of 'neither arising nor ceasing'(不生滅) and 'arising and ceasing'(生滅) of all beings. The process of how one-mind develops mind in terms of the Absolute(心眞如門) and mind in terms of Phenomena(心生滅門) and its ontological structure are also investigated. In addition, the philosophical significance of Wonhyo's interpretation of tathāgatagarbha and ālayavijñāna analyzed. Besides, the method how various theories about vijñāna from Tathāgatagarbha's and Yogācāra's philosophy can be synthesized is examined based on Wonhyo's arguments. The four aspects of existence(caturākāra 四相) -arising(生), abiding(住), changing(異), and ceasing(滅)- which is transformed according to stages and dimensions of 'arising and ceasing', and phases of mind such as delusion of three fine states(三細) and six rough states(六麤), five consciousness(五意), and six defiled states(六染) are interpreted based on Tathāgatagarbha's and Yogācāra's philosophical system.
Generally, X-ray examinations for dentistry use low energy radiation. It explains that the radiations are mainly absorbed to a human body because of the weak permeability. We made up some counterplans for decrease in radiation exposure, when guardians and radiologists are overexposed owing to unavoidable circumstances. The equipments for the test are GX-770 and CRANEX TOME CEPH which are used for various exams. Besides we measured the radiations in the projection room and in the control room using model 2026c and 20X6-1800. According to the test, the measurement value in the control room was low dose below $20{\mu}R$, the maximum dose in the projection room was $702.8{\mu}R$ and the measurement value of back dose was higher than lateral one. As the result, if we use a shielding door, it's effective for radioprotection and when we didn't prepare protectors, we should secure appropriate distance and be situated at the side area($90{\sim}135^{\circ}$) on the basis of centeral radiation. That way will provide valuable aid for radioprotection.
Kim, Jong-Kyu;Lee, Nam-Ju;Kim, Eung-Joon;Ki, Sun-kyung;Yoon, Jae-Ryang;Lee, Mi-Sook
Nutrition Research and Practice
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v.5
no.4
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pp.349-356
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2011
This study was conducted to investigate relationships and gender differences in dietary supplement (DS) and oriental supplement (OS) prevalence as well as anti-doping awareness during training and the game period. Korea National Sport University athletes (343 male and 136 female) participated in this study and completed DS and OS practice and anti-doping awareness questionnaires. Forty-six percent of athletes used DS during the training period, and there was significantly higher DS use in females (53%) compared to males (43%) (P < 0.05). Twenty-eight percent of athletes used OS, and there was significantly higher OS use in females (35%) than males (26%) (P < 0.05) during the training period. The primary reason of DS use was to supply energy both in males (36%) and females (28%). The main reason for male athletes' OS use was to supply energy (41 %). Meanwhile, the reasons for female athletes' OS use were to supply energy (23%), to maintain health (19%), and to improve recovery ability (20%), which showed a significant gender difference (P < 0.05). Athletes rated their perceived degree of satisfaction, perceived importance, and beliefs in efficacy of DS and OS use all over 50% during the training period, and no gender differences were detected. In a comparison between athletes educated about anti-doping (at least more than one time) and non-received athletes, DS and OS use during the training period was 2.30 (1.47-3.60) and 1.71 (1.03-2.82), respectively. DS and OS use immediately before the game period was 2.38 (1.50-3.80) and 3.99 (1.20-13.28), respectively.Elite athletes' anti-doping education was highly related to increased DS use during the training period and immediately before the game. Although elite athletes use various DS and OS during the training period and before the game period, doping education for elite athletes is related with DS and OS use during the training period and before the game.
The purpose of this paper is to analyze the characteristics and chemical components of biosurfactant produced by Pseudomonas sp. G314. Pseudomonas sp. G314 was isolated from soil samples which were contaminated with oil in Daejon area. As such, it produced quality biosurfactant [23]. One type of biosurfactant was kept in a refrigerator, whereas another type of biosurfactant was kept in room temperature. The surface tension activities were then compared. As a result, the biosurfactant from Pseudomonas sp. G314 that was kept at room temperature was stable for 10 days, showing 26.2 dyne/cm of surface tension activity. This result was found to be similar to that of the refrigerator storage. The surface tension of batch culture was 25 dyne/cm, but the culture in the 5 l fermentor was 27 dyne/cm. Therefore, it can be suggested that the large-scale culture is feasible via the fermentor. Biosurfactant from Pseudomonas sp. G314 was estimated to be a kind of glycolipid because it dissolved in acetone and methanol much better than in benzene and toluene [23]. A spot was detected through the elution of silica gel column and the spread of TLC, and the Rf value was 0.58. This spot has a positive reaction with Bail's reagent and rhodamine 6G. Hence, we can conclude that biosurfactant from Pseudomons sp. G314 was a glycolipid containing carbohydrate and lipid.
Journal of the Korean Association of Geographic Information Studies
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v.8
no.2
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pp.44-54
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2005
In this study the tidal area in Seo han bay, North Korea was detected and extracted by using various satellite images (ASTER, KOMPSAT EOC, Landsat TM/ETM+) and GIS spatial analysis. Especially, the micro-landform was classified through the spectral characteristic of each satellite image and the change of tidal flat size was detected on passing year. For this, the spectral characteristics of eight tidal flat area in Korea, which are called as Seo han bay, Gwang ryang bay, Hae iu bay, Gang hwa bay, A san bay, Garorim bay, Jul po bay and Soon chun bay, were analyzed by using multi band of multi spectral satellite images such as Landsat TM/ETM+. Moreover, the micro-landform tidal flat in Seo han bay, North Korea was extracted by using ISODATA clustering based on the result of spectral characteristic. In addition, in order to detect the change of tidal flat size on passing years, the ancient topography map (1918-1920) was constructed as GIS DB. Also, the tidal flat distribution map based on the temporal satellite images were constructed to detect the tidal flat size for recent years. Through this, the efficient band to classify the micro-landform and detect its boundary was clarified and one possibility of KOMPSAT EOC application could be also introduced by extracting the spatial information of tidal flat efficiently.
Park, Yhun Jung;Ku, Chang-Sub;Kim, Min-Jin;Lee, Mi Kyeong;Kim, Ki Ohk;Ryu, Hyung Won;Song, Hyuk-Hwan;Kim, Doo Young;Oh, Sei-Ryang
Journal of Applied Biological Chemistry
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v.58
no.1
/
pp.31-38
/
2015
The rhizomes of Anemarrhena asphodeloide was extracted with 100% ethanol and concentrated subfractions were separated with medium pressure liquid chromatography-based activity profiling. One compound was isolated from the subfraction 10 through the repeated preparative high performance liquid chromatography (prep-HPLC). According to physico-chemical and spectroscopic data including NMR and MS, the chemical structures of the compound was determined as nyasol (1). Nyasol was exhibited potent inhibitory activity for NO ($IC_{50}:12.5{\mu}g/mL$), tyrosinase ($IC_{50}:12.5{\mu}g/mL$), melanin contents ($IC_{50}:12.5{\mu}g/mL$), thymus and activation-regulated chemokine (TARC) production ($IC_{50}:6.25{\mu}g/mL$). As a result, nyasol has an excellent inflammation-dependent anti-whitening and TARC production activity. It could be used to a large range of functional cosmetics.
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