Flash memory has been attracting attention as the next mass storage media for mobile computing systems such as notebook computers and UMPC(Ultra Mobile PC)s due to its low power consumption, high shock and vibration resistance, and small size. A storage system with flash memory excels in random read, sequential read, and sequential write. However, it comes short in random write because of flash memory's physical inability to overwrite data, unless first erased. To overcome this shortcoming, we propose an SSD(Solid State Disk) architecture with two novel features. First, we utilize non-volatile FRAM(Ferroelectric RAM) in conjunction with NAND flash memory, and produce a synergy of FRAM's fast access speed and ability to overwrite, and NAND flash memory's low and affordable price. Second, the architecture categorizes host write requests into small random writes and large sequential writes, and processes them with two different buffer management, optimized for each type of write request. This scheme has been implemented into an SSD prototype and evaluated with a standard PC environment benchmark. The result reveals that our architecture outperforms conventional HDD and other commercial SSDs by more than three times in the throughput for random access workloads.
To identify the changes in professional care patterns after the introduction of medical insurance in Korea, professional care in hospitals and clinics of two succeeding years were compared. The hospitals and clinics selected for this study were those which located in Seoul city. Hospitals were classified into 3 categories: university hospital, general hospital and hospital. The diseases selected for this study were acute appendicitis and normal delivery. They were selected because their disease courses are considered to be fairly stable. The variables used for this study were length of stay, total hospital costs, costs of each components of cares. The information used for this study was obtained from the official forms requested by the medical facilities to the Korea Medical Insurance Corporation. The two periods studied were 3 months of each year from March 1st to May 31st in 1979 and 1980, The total number of normal delivery studied was 289 in 1979, 301 in 1980 respectively and the acute appendicitis was 92 and 111 respectively. In order to compare the quantity of medical care between 2 study periods the insurance price scores of 1979 were converted to prices of 1980. For statistical test of difference between 2 periods T-test and Welch's test were used. The result of the study were briefly summarized in below. 1. No significant difference was observed in the average length of stay of both disease between two study periods in all types of hospitals. 2. No significant difference was observed in the average total hospital costs of both diseases in all types of hospital, but in the private clinic the average clinic costs was rather decreased significantly in 1980. 3. More cost decrease were seen than cost increase in 1980 in all types of facilities, More cost changes by items were seen in acute appendicitis than in normal delivery between two study periods. The total hospital costs can be devided into 2 portions: charges for drug and material and for physician. In normal delivery, costs for physician's charges was significantly decreased in almost all the hospitals and costs for drug and material were not changed significantly in all the hospitals in 1980. In the university hospitals, however, the costs for drug and material were increased significantly in 1980. The cost decrease for physician's charge were mainly due to the decrease in the costs of laboratory test, treatment and physical therapy. The increase in the costs for the drug and material in the university hospitals was mainly due to the increase in the cost for drugs for oral administration and injection. 4. The proportion of components of medical care in the hospital has not been changed significantly, however, the cost for injection in normal delivery was characteristically increased in 1980 in all hospitals studied. In general the proportion of the costs for drug and material was tended to increase and the costs for physician was tended to decrease in 1980. The increase in the costs for drug and material were considered to be due to increase in the cost for drugs for oral administration and injection. The decrease in the costs for physician were due to decrease in the costs of laboratory test, treatment and physical therapy. Above mentioned changes in hospital and clinic care patterns are considered to be mostly influenced by the review criteria set by the K.I.C. for the assessment of the fee request made by clinics and hospitals.
Choi, Byoung Gil;Na, Young Woo;Hyeon, Chang Seop;Cho, Tae In
Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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v.36
no.2
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pp.95-104
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2018
This study has the purpose of suggesting the method to analyze the spatiotemporal change of satisfaction concerning the officially assessed land price using geostatistical analysis. Analyzing the spatial distribution characteristic of officially assessed land price using present GIS (Geographic Information System) or is staying at qualitatively suggesting the improvement method of the officially assessed land price system. Grouping the appeal strength based on the official price and opinion price of officially assessed land price, GIS DB (Database) was constructed and the time seriate satisfaction were analyzed and compared through spatial density analysis and spatial autocorrelation analysis. As a result, it was found that the difference between the official price and the applicant's price differed depending on individual land, but most of the respondents requested the increase or the reduction of the average land price, which resulted in a large number of request. Analyzing the satisfaction of the officially assessed land price by using GIS, it was known that satisfaction of officially assessed land price could be analyzed by using the difference of the opinion price and not only the officially assessed land price. Spatiotemporal change of officially assessed land price satisfaction was known to be possible through spatiotemporal pattern analysis method such as spatiotemporal auto-corelation analysis and hotspot analysis etc using GIS. In short, regionally positive or negative significant relationship was investigated through spatiotemporal analysis using annual data.
Journal of the Korea Academia-Industrial cooperation Society
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v.17
no.4
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pp.43-51
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2016
Preventing the forgery and alteration of test reports is important, in order to maintain the reliability of military supplies. Based on a survey of reports on testing institutions and a case study of established electronic document systems in the public sector, we propose a system architecture, which helps prevent the forgery and alteration of test reports with legal force. The proposed architecture takes advantage of both the time stamp that records the time a document is received and a server synchronized with the testing institution. Using the proposed system architecture, the user is able to request a test and receive reports from the testing institution without delay. Also, a defense agency is able to conveniently prove the authenticity of the test reports and utilize the statistical data collected by the architecture. Therefore, we expect that the proposed system architecture will help defense agencies to prevent the forgery and alteration of test reports and ensure their reliability and quality.
Park, So Young;Oh, Bum Jin;Sohn, Chang Hwan;Jeong, Ru Bi;Lim, Kyoung Soo;Kim, Won;Ryoo, Seung Mok
Journal of The Korean Society of Clinical Toxicology
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v.11
no.1
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pp.9-18
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2013
Purpose: Antidotes for toxicological emergencies can be life-saving. However, there is no nationwide stocking and delivery system for emergency antidotes in Korea. We report on a two-year experience of a nationwide stocking and delivery trial for emergency antidotes at emergency departments in Korea. Methods: An expert panel of clinical toxicologists reviewed and made a list of 15 stocked antidote. These antidotes were purchased or imported from other countries and delivered from 14 antidote stocking hospitals nationwide 24 hours per day, seven days per week. Results: From August 1, 2011 to April 30, 2013, 177 patients with acute poisoning, with a median age of 48.5 years, were administered emergency antidotes. The causes of poisoning were intentional in 52.0% and 88.0% were intentional as a suicide attempt. Regarding clinical severity, using the poisoning severity score, 40.7% of patients had severe to fatal poisoning and 39.0% had moderate poisoning according to clinical severity. The most frequent presenting symptom was neurologic deficit, such as altered mentality (62.7%). alerted mentality (62.7%). Emergency antidotes were administered as follows: methylene blue (49 cases), flumazenil (31), N-acetylcysteine (25), glucagon (17), 100% ethanol (15), cyanide antidote kit (12), anti-venin immunoglobulin (5), pyridoxine (4), hydroxocobalamine (2), and deferoxamine (1). The median time interval from antidote request to delivery at the patient's bedside was 95 minutes (interquartile range 58.8-125.8). Conclusion: Findings of this study demonstrated the possibility of successful operation of the nationwide system of emergency antidotes stocking and delivery in Korea.
The article herein suggested a compound repository and a descriptive method to develop a compound knowledge process. A data target saved in a compound knowledge repository suggested in this article includes all compound knowledge meta data and digital resources, which can be divided into the three following factors according to the purpose: user roles, functional elements, and service ranges. The three factors are basic components to describe abstract models of repository. In this article, meta data of compound knowledge are defined by being classified into the two factors. A component stands for the property about a main agent, activity unit or resource that use and create knowledge, and a context presents the context in which knowledge object are included. An agent of the compound knowledge process performs classification, registration, and pattern information management of composite knowledge, and serves as data flow and processing between compound knowledge repository and user. The agent of the compound knowledge process consists of the following functions: warning to inform data search and extraction, data collection and output for data exchange in an distributed environment, storage and registration for data, request and transmission to call for physical material wanted after search of meta data. In this article, the construction of a compound knowledge repository for recommendation system to be developed can serve a role to enhance learning productivity through real-time visualization of timely knowledge by presenting well-put various contents to users in the field of industry to occur work and learning at the same time.
Recently the request of the patients to participate in the medical courses has been expanding due to elevated sense of right on the people's health. merchandised medical treatment by mass supply, human right declaration of the patients, generalized medical informations by the mass media and the change of human relation between the medical personnels and the patients. Under these phenomena the accident by the nurses have been increasing by the area of the nurses having been expanded and their independent roles having been increased. Such nursing accidents are the important subject which the professional occupation of the nurses has been facing but legal protective capability of the nurses has been very weak. Therefore this study has examined the degree of the experience of the nursing accident that happens in the clinical nursing scenes in the general hospital to provide the basic materials for the protection and the counter measures of the nursing accidents. The following is the conclusion based by the above examination. 1) The general characters of the subjects of this study is that they are mostly single in their twenties and graduate from nursing college. Their total clinical career is above 5 years$(44.8\%)$ and their current clinical parts' career is between 1-3 years$(40.1\%)$. So these facts suggest that most hospitals has taken the working rotation policy on nurses. 2) The level of nurses' knowledge on the nursing law is accurate partially but isn't it patially. So it is suggested that nurses need the accurate information and education about the nursing law. But the nurses' attitude is very approved of the establishment of a unilateral nursing law. 3) The relation between the demographic characters of the subjects and their attitudes on the nursing law shows that there is no significant differences except the relation between the attitude 6(the sufficient level of education on nursing law in formal education course) and age. total clinical career. 4) The perception of the nurses shows that the cause of the nursing accident has been due to the heavy work$(78.2\%)$. short of professional knowledge and skill$(60.2\%)$, discordance with Doctors. patients and patients' families. They report the accident to the head nurse first$(81.8\%)$ and within 30 minute$(75.1\%)$. The hour of nursing accident frequently happened is regardless of service hour with $49.4\%$ in response rate. the highest rate. and the nursing accident happens in the night more than the daytime. Even though most nurses think that they are themselves responsible for nursing accident. it is found that the chief cause of the nursing accident is due to the nurses' heavy work$(78.2\%)$. So the causes of nursing accidents is analysed. it may be suggested that the endeavor of hospital and nursing organizations to decrease nursing accidents is very important. 5) The coping patterns of patients with nursing accidents are mostly active attitude such as a violent words$(69\%)$. sue or accusation$(36.4\%)$, monetary compensation $(35.6\%)$ except a understanding cases$(38.7\%)$. But the coping patterns of hospitals with nursing accidents are mostly to investigate the accurate cause.
Journal of the Institute of Electronics Engineers of Korea CI
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v.42
no.6
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pp.1-10
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2005
This paper describes the implementation of HTML converter for wireless internet access in wireless application protocol environment. The implemented HTML converter consists of the contents conversion module, the conversion rule set, the WML file generation module, and the frame contents reformatting module. Plain text contents are converted to WML contents through one by one mapping, referring to the converting rule set in the contents converting module. For frame contents, the first frameset sources are parsed and the request messages are reconstructed with all the file names, reconnecting to web server as much as the number of files to receive each documents and append to the first document. Finally, after the process of reformatting in the frame contents reformatting module, frame contents are converted to WML's table contents. For image map contents, the image map related tags are parsed and the names of html documents which are linked to any sites are extracted to be replaced with WML contents data and linked to those contents. The proposed conversion method for frame contents provides a better interface for the users convenience and interactions compared to the existing converters. Conversion of image maps in our converter is one of the features not currently supported by other converters.
Journal of the Institute of Electronics Engineers of Korea TC
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v.47
no.12
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pp.17-23
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2010
In the mobile cloud computing, the mobile node should request and receive the services while being connected. In PMIPv6, all packets sent by mobile nodes or correspondent nodes are transferred through the local mobility anchor. This unnecessary detour still results in high delivery latency and significant processing cost. Several PMIPv6 route optimization schemes have been proposed to solve this issue. However, they also suffer from the high signaling costs and handover latency when determining the optimized path. We propose the route optimization handover scheme which adopts the prediction algorithm in PFMIPv6. In the proposed scheme, the new mobile access gateway establishes the bi-directional tunnel with the correspondent node's MAG using the context message when the mobile node's handover is imminent. This tunnel may eliminate the need of separate route optimization procedure. Hence, the proposed scheme can reduce the signaling cost than other conventional schemes do. Analytical performance evaluation is preformed to show the effectiveness of the proposed scheme. The result shows that our scheme is more effective than other schemes.
The purposes of this study were to understand how franchisor's influence strategies influenced franchisee's boundary spanning behaviors and how franchisor's entrepreneurship influenced franchisee's boundary spanning behaviors. This study also analyzed whether franchisor's entrepreneurship played a moderating role in the causal relationship between franchisor's influence strategies and franchisee's boundary spanning behaviors. Based on a total of 698 self-administered questionnaires obtained from franchisees(food-service unit owners or managers) in Korea, frequency analysis, exploratory factor analysis, reliability analysis and hierarchical regression analysis were conducted. The research findings showed results that firstly, promise (${\beta}$=0.292), threat (${\beta}$=-0.256), recommendation (${\beta}$=0.200), information exchange (${\beta}$=0.359), request(${\beta}$=-0.097) and legalistic plea(${\beta}$=-0.137) had a significant effect on franchisee's boundary spanning behaviors and secondly, franchisor's entrepreneurship had a significant positive effect on franchsee's boundary spanning behavior. In addition, the effects of franchisor's promise(${\beta}$=0.168) and threat(${\beta}$=-0.075) on franchisee's boundary spanning behaviors were found to be partially moderated by franchisor's entrepreneurship. Franchisees wanted franchisors to execute a high level of entrepreneurship and deliver a promise in an influence strategy. Limitations and future research directions were also discussed.
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