This study was designed to analyze, by using a hierarchical logistic regression analysis method, how difficulties in business start-ups and personal characteristics independently determine the utilization of micro-enterprise support services. The services were categorized into eight areas: capital, technical service, psychological service, item feasibility and business plan, site selection and interior service, marketing, finance and accounting, employment service. This study found that difficulties in business start-ups were a significant factor in six areas. Personal characteristics were a significant factor in four areas, when difficulties in start-ups were controlled. Among the personal characteristics, higher possibility of service utilization was anticipated in people with start-ups experience than people without experience, and in women than men. This results point out that service strategies should be targeted for people with difficulties in order to improve the accessibility of micro-enterprises support services. The results also indicate that the strategies should be considered for people with no start-ups experience, low academic ability, and female entrepreneurs who are vulnerable.
International conference on construction engineering and project management
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2013.01a
/
pp.279-286
/
2013
This paper introduces a new method for identification of building energy performance problems. The presented method is based on automated analysis and visualization of deviations between actual and expected energy performance of the building using EPAR (Energy Performance Augmented Reality) models. For generating EPAR models, during building inspections, energy auditors collect a large number of digital and thermal imagery using a consumer-level single thermal camera that has a built-in digital lens. Based on a pipeline of image-based 3D reconstruction algorithms built on GPU and multi-core CPU architecture, 3D geometrical and thermal point cloud models of the building under inspection are automatically generated and integrated. Then, the resulting actual 3D spatio-thermal model and the expected energy performance model simulated using computational fluid dynamics (CFD) analysis are superimposed within an augmented reality environment. Based on the resulting EPAR models which jointly visualize the actual and expected energy performance of the building under inspection, two new algorithms are introduced for quick and reliable identification of potential performance problems: 1) 3D thermal mesh modeling using k-d trees and nearest neighbor searching to automate calculation of temperature deviations; and 2) automated visualization of performance deviations using a metaphor based on traffic light colors. The proposed EPAR v2.0 modeling method is validated on several interior locations of a residential building and an instructional facility. Our empirical observations show that the automated energy performance analysis using EPAR models enables performance deviations to be rapidly and accurately identified. The visualization of performance deviations in 3D enables auditors to easily identify potential building performance problems. Rather than manually analyzing thermal imagery, auditors can focus on other important tasks such as evaluating possible remedial alternatives.
Proceedings of the Korean Institute of Building Construction Conference
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2023.11a
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pp.43-44
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2023
Fire doors installed to prevent the spread of fire in buildings are made of paper honeycomb, glass wool, and other materials. Due to their high water absorption rate, they absorb ambient moisture and degrade, and their increased weight causes them to sag internally, creating voids that can warp in the event of a fire and allow flames to pass through. To overcome these issues, research is being conducted on the physical performance of lightweight aerated concrete. However, there is a lack of research on how to ensure fire resistance. Therefore, in this study, the backside temperature of lightweight aerated concrete formulations was measured and compared and analyzied with the physical performance. Since it is difficult to achieve low density by saturation alone, aerated concrete with EPS was produced, which resulted in a density reduction of 24'26%, but the strength increase per unit cement increase was 5'25%, which tended to be lower than the formulation without EPS. The results showed that the lightweight aerated concrete with EPS was 130~140℃ lower than the lightweight aerated concrete with EPS, which is believed to be due to the melting point of EPS delayed the heat diffusion. In the future, wo plan to conduct research to identify the optimal formulation for fire door core materials by varying the amount of EPS added and using industrial by-products to increase long-term strength.
This thesis aims at examining his understandings about the The Great Learning centering on the of the founder of the YiYongHuSaeng School (利用厚生學派: A school who pursued prosperous economy and welfare of people) orthe BukHak School(北學派: A positive school that pursued mercantilism) from the Joseon Dynasty, Dam-Heon Hong Dae Yong (1731-1783). 1) From what is indicated in the , his studies mainly focused on the annotations from DaeHakJangGuDaeJeonJipJu ("大學章句大全集註": A book that edited different phrases from the Great Learning into chapters and paragraphs), Questioning of the Great Learning", and "JuJaUhRyu (朱子語類: A book of Confucian literature written by Yeo Jung Deok" of Zhu Xi who was a representative scholar of the Neo-Confucianism in the Song Dynasty. 2) Acknowledging entirely the arguing points of Zhu Xi, he is taking a critical position in a way that partial doubts are divided into seven chapters and questioned. 3) For the main characteristic and direction of the questioning, he is estimating that Zhu Xi only stressed the 'means' and 'interior' out of the world of 'means and ends' and 'interior and exterior' in Zhu Xi's recognizing and handling cases; instead, he emphasized putting equivalent value on the 'ends' and 'exterior' as well. 4) In fact, such questions raised partially were misconceived since they were not carried out through profound understanding nor systematic logic expansion of what Zhu Xi insisted. 5) Despite this, at the point where Neo-Confucian thoughts were fixed and weakened only with its form left in the late Joseon Dynasty, his perspective on the study of Confucian classics that the 'ends' and 'exterior' should be as equally valued as the 'means' and 'interior' by examining through the core text of the Neo-Confucianism, The Great Learning has its significance in his YiYongHuSaeng dogma that says politicians, by all means, should provide the ruled with economic convenience and welfare and this is their very right virtue.
Kang Kyung Hwa;Kim Kyung Chul;Baik Geun Gi;Lee Yong Tae
Journal of Physiology & Pathology in Korean Medicine
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v.17
no.5
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pp.1157-1176
/
2003
The following conclusions are induced from a study on the acupuncture therapy depending on hyungsang of the persons. The study is made on the basis of 'Internal classic (內經)& and &Clinical Lectures by Dr. Jeesan&. The acupuncture originated from the treatment of spasm with numbness in the southern area. The acupuncture is basically a remedy for the exterior disease of meridian but also it can be a cure for the interior disease of Jang and obstinate disease with accurate method. Three mechanisms of acupuncture are described in 'Internal classic'. The first is to make meridian circulate smoothly. The second is to regulate Ki and Hyul. The third is to regulate points through which the meridian-Ki goes in and out smoothly or adversely. There are two ways of acupuncture in 'Internal classic'. One is based on pulse and symptom and the other on the Hyungsang. The former is more generally used therapy, to which depletion method, Asi point method(阿是穴 療法), Inyoung-kigu pulse comparison method (人迎氣口脈法) and method depending on jang-bu disease belong. Acupuncture is done on Su points(輸穴) and back-su point(背兪穴) in case of jang-disease. In case of bu-disease, the treatment is done on Hap points(合穴) and Mo-points(募穴). The latter includes two methods; one according to invariable Hyungsang. And the other to variable Hyungsang. The method of acupuncture according to invariable Hyungsang usually selects Won-points(原穴). Different Hyungsang requires different method of acupuncture; In case of Dam type, the acupuncture is mainly practiced on four-Kwan points with reinforcing and reducing methods achieved by the direction of the needle tip pointing to. In case of Bangkwang type, the acupuncture is usually done on Jungwan(中脘) and Poongyung(豊隆) with reinforcing and reducing methods by means of respiration. In case of female, more effective are the acupoints on the right and lateral parts of the body selected on the basis of five su-points of the twelve meridians matching the heavenly stems and earthly branches. In case of male, more effective are the acupoints on the left, front and rear parts of the eight extra meridians. In case of acupuncture to the person with Hyungsang of five jang and six bu, each person's intrinsic Hyung, color, pulse, must be observed. Because symptoms of jang-bu disease also must be checked up. Acupuncture is done on the Won-points of the meridians related to the jang and bu where the disease starts. The disease of five jang is so obstinate that it requires both of medication and acupuncture for a long time. In case of acupuncture to the person with Hyungsang of animal types, diagnosis is made on the basis of shape, temper, function and color. And the treatment is given on the Won-points of corresponding exterior and interior meridians. For the fish type, the acupuncture is done on the kidney meridian of foot-soyin and the urinary bladder of foot-taiyang. For the bird type, on the heart meridian of hand-soyin, the pericardium meridian of hand-gualyin, and the small intestine meridian of hand-taiyang For the deer type, on the liver meridian of foot-gualyin and the gallbladder meridian of foot-soyang. For the turtle type, on the lung meridian of hand-taiyin and the large intestine meridian of hand-yangmyung.
The Journal of the Korea institute of electronic communication sciences
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v.8
no.12
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pp.1883-1890
/
2013
Location detection technology (LDT) is one of the core techniques for location based service (LBS) in wireless communication for improving resource management and quality of services. The location of a mobile station (MS) is estimated using the time of arrival (TOA) technique based on three circles with centers corresponding to coordinates of three base stations (BSs) and radius corresponding to distances between MS and BSs. For accurately estimating the location of MS, three circles should meet at a point for the trilateration method, but they generally do not meet a point because the radius is increased depending on the number of time delay for estimating the distance between MS and BS and the carrier frequency. The increased three circles intersect at six points and the three intersection points among them should be generally placed close to coordinate of the location for the specific MS. In this paper, we propose the shortest distance algorithm for TOA trilateration method, to select three interior intersection points from entire six points. The proposed approach selects three intersection points with the shortest distances between coordinates of MS and intersection points and determines the averaged coordinate of the selected three points, as the location of the specific MS. We demonstrate the performance of the proposed algorithm using a typical computer simulation example.
Journal of the Society of Cosmetic Scientists of Korea
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v.30
no.4
s.48
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pp.525-532
/
2004
N-acyl taurates are known as environmental-friendly and non-irritating to skin. In this study, the physicochemical properties of N-acyl taurates, which are amide-type anionic surfactants, were measured and also compared with sulfate-type anionic surfactants that show low biodegradability and are highly irritating to skin. The possibility of replacing the currently existing sulfate-type surfactants by N-acyl taurates was examined. Based on the experimental results, shampoos were formulated with these anionic surfactants and their stability and properties were measured. The possibility of application of amide-type surfactants to personal care cleaner was evaluated. Experimental results show that N-acyl taurates have various favorable aspects in making personal care cleanser: high viscosity, low surface tension, and low CMC values. These properties of N-acyl taurates generate nano-scale particles in emulsion, which is stable due to its high viscosity. This emulsion also has good cleaning ability with small amount of usage due to easy penetration into contaminants. Shampoo with N-methyl oleyl taurate showed high yield point and constant viscosity, and formed stable emulsion with nano- scale uniform particles. These results suggest that N-acyl taurates play an important role in making stable Interior structure in shampoo, and which improves the storage property.
After a comparative study on between Shanghanlun(傷寒論) and Sa-sang constitutional medicine(四象醫學) in Pathogenesis, I got a conclusion like this. Sa-sang consitutional medicine(四象醫學) changed the directions to the medicine in the center of personality from the medicine in the center of Shanghanlun(傷寒論)'s demonstration, devided the personality of people by the size of Organ system(臟腑) into 4types of Tae-eum, Yo-yang, Tae-yang, Yo-eum(太少陰陽), and explains all the course of physiology, pathology, diagnosis, therapy of the body on the point of constitutional view. Comparing the features of two medicines, Shanghanlun(傷寒論) and Sa-sang constitutional medicine(四象醫學), Shanghanlun(傷寒論) devided the diseases into the three type of eum-yang based on eight principal syndroms(八綱原理), in accordance with evidence of illness, pulse and studied the therapy, Shanghanlun(傷寒論) set up the basis of medicine which is based on overall of symptoms and signg(辨證論治醫學). Sa-sang constitutional medicine(四象醫學) distinguished the image(象) which is devided by the size of inherited Organ system(臟腑), refered to the symptom of diseases(病症) and decided the therapic directions. So Sa-sang constitutional medicine(四象醫學) gave more accuracy to the therapy by subdeviding the process of differenciation of case(辨證) into 2 steps of differenciation of image(辨象) and differenciation of case(辨證). In view of etiologic factor, Shanghanlun(傷寒論) regarded it as a invading of pathogenic factors(邪氣), so Shanghanlun(傷寒論) has the medical theory of pathogenic factors(邪氣). But Sa-sang constitutional medicine(四象醫學) regarded it as a disorder of the genuine energy(正氣)'s movements(升降緩速), so Sa-sang constitutional medicine(四象醫學) has the medical theory putting first of genuine energy(正氣). But Shanghanlun(傷寒論) also recognized the constitutional difference basically and Sa-sang consitutional medicine(四象醫學) devided the constitution into Tae-eum, Yo-yang, Tae-yang, Yo-eum(太少陰陽) and explained the food-air-fluid metabolism(飮食-氣液之氣病證) as cold-hot, cool-warm and devided the the symptom of diseases(病症) into the interior and the exterior(表裏) as the up-down, slow-fast movements of eum-yang and insufficiency and excessiveness is between them. In the end, Sa-sang constitutional medicine(四象醫學) has the theory of eight principal syndroms(八綱原理) faithfully which is the theory of differenciation of case(辨證理論) of Shanghanlun(傷寒論). Therefore Shanghanlun(傷寒論) made a lot of influence on originating Sa-sang constitutional medicine(四象醫學), Sa-sang constitutional medicine(四象醫學) is the theory which is based on existing medical theory including Shanghanlun(傷寒論) and composed the new medical theory to the constitutional point of view. Sa-sang constitutional medicine(四象醫學) enriched the medical theory and developed the clinical medicine so it has the historical value in the medicine.
The Journal of the Institute of Internet, Broadcasting and Communication
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v.12
no.1
/
pp.133-140
/
2012
This paper suggests an algorithm that can shorten the complexity $O(n^2)$ of Dijkstra algorithm that is applied to the shortest path searching in real-time GPS Navigation System into an up-to-date O(n). Dijkstra algorithm manipulates the distance of the minimum length path by visiting all the nodes from the starting node. Hence, it has one disadvantage of not being able to provide the information on the shortest path every second, in a city that consists of sophisticated roads, since it has to execute number of node minus 1. The suggested algorithm, firstly, runs by means of organizing the set of out-neighbourhood nodes at each level of the tree, and root node for departure node. It also uses a method of manipulating the distance of the minimum path of all out-neighborhoods and interior of the out-neighborhoods. On applying the suggested algorithm to two sophisticated graphs consisted of bi-direction and uni-direction, we have succeeded to obtain the distance of the minimum length path, just as same as Dijkstra algorithm. In addition, it has an effect of shortening the time taken 4 times from number of node minus1 to number of level minus 1. The satisfaction of the drivers can be increased by providing the information on shortest path of detour, every second, when occurs any rush hour or any traffic congestion due to car accident, by applying this suggested algorithm to the real-time GPS system.
Kim, Dong-Seong;Yoo, Min-Young;Kim, Hee-Seong;Choi, Joo-Ho
Journal of the Computational Structural Engineering Institute of Korea
/
v.27
no.6
/
pp.635-642
/
2014
In this paper, an efficient technique is developed to predict failure probability of three failure modes(case rupture, fracture and bolt breakage) related to solid rocket motor case due to the inner pressure during the mission flight. The overall procedure consists of the steps: 1) design parameters affecting the case failure are identified and their uncertainties are modelled by probability distribution, 2) combustion analysis in the interior of the case is carried out to obtain maximum expected operating pressure(MEOP), 3) stress and other structural performances are evaluated by finite element analysis(FEA), and 4) failure probabilities are calculated for the above mentioned failure modes. Axi-symmetric assumption for FEA is employed for simplification while contact between bolted joint is accounted for. Efficient procedure is developed to evaluate failure probability which consists of finding first an Most Probable Failure Point(MPP) using First-Order Reliability Method(FORM), next making a response surface model around the MPP using Latin Hypercube Sampling(LHS), and finally calculating failure probability by employing Importance Sampling.
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