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Lattice Reduction Aided MIMO Detection using Seysen's Algorithm (Seysen 알고리즘을 이용한 Lattice Reduction-aided 다중 안테나 검출기법)

  • An, Hong-Sun;Mohaisen, Manar;Chang, Kyung-Hi
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.34 no.6C
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    • pp.642-648
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    • 2009
  • In this paper, we use SA (Seysen's Algorithm) instead of LLL (Lenstra-Lenstra-Lovasz) to perform LRA (Lattice Reduction-Aided) detection. By using SA, the complexity of lattice reduction is reduced and the detection performance is improved Although the performance is improved using SA, there still exists a gap in the performance between SA-LRA and ML detection. To reduce the performance difference, we apply list of candidates scheme to SA-LRA. The list of candidates scheme finds a list of candidates. Then, the candidate with the smallest squared Euclidean distance is considered as the estimate of the transmitted signal. Simulation results show that the SA-LRA detection learn to quasi-ML performance. Moreover, the efficiency of the SA is shown to highly improve the channel matrix conditionality.

Need for Development of a List of Meals for Diabetic Patients and Development of Barley-Based Diabetic Meals (당뇨병환자의 메뉴개발 요구도 및 보리이용 당뇨식단 개발)

  • Ryu, Ji Hye;Rho, Jeong Ok
    • Human Ecology Research
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    • v.51 no.5
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    • pp.551-561
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    • 2013
  • The aim of this study was to develop and apply a list of meals and standard recipes using barley for diabetic patients. The degree of interest and requirements of diabetic patients were investigated for the development of meals. The ingredients of the meals were selected through the diabetic literature and previous research. While developing a list of meals, dietetic therapies for diabetic patients were considered. After developing 15 kinds of meals and modifying them through sensory evaluation, a standard recipe was completed. In the standard recipe, the menu name, the ingredients, quantity, and recipe were stated and the nutritional components were indicated. Photographs of the meals were included. The calorie prescription for the diabetic patients was aimed at elderly women, that is, those 65 years old or above, based on research showing this to be the average age of diabetics. The prescribed calories were 1,500 kcal based on the food exchange list. Weekly lists of meals including the developed dishes were made for diabetic patients. The list were modified after consultation with a clinical nutritionist. When completed, one meal item was selected for each day and cooked. A photograph was taken and presented diabetic patients. This article presents the standardized recipes of the developed list of meals and applies them to modifying the diabetic diet, with an aim to be of service to diabetic patients attempting to meet their dietetic therapy goals. We also provide basic data on institutional food services for diabetic patients and nutrition education.

A study on the list of must books in middle schools (중고등학교 필독도서목록에 관한 연구)

  • 변우열
    • Journal of Korean Library and Information Science Society
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    • v.24
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    • pp.243-274
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    • 1996
  • The purpose of this study is to investigate the necessity, selection, organization and management of Must Books List in middle schools. A great book can change a person's life and future. Especially, reading in the juvenile period is important because of their intellectual curiosity and sensitivity. The results of the study were as follows: 1. The necessity of Must Books can be considered in two perspectives : One is the cultivation of emotion and sense of value and the other is the development of information abilities. 2. The general criteria for the selection of Must Books are whether a book is su n.0, pportive of learning activities, of extracurricular activities, and of activities for school festivals. And whether a book is contributing to the building of good characters of students or not should be considered, too. 3. The special attention should be given to such matters as the organizational and distributional ratio among subjects of the Must Books, the degree of difficulties, the ratio of books for both male and female students, the ratio of foreign books to domestics, the possibilities of further reading and the bibliographical matters. 4. The points to be duly considered for the management of Must Books List are the educational considerations, clearness of objectives, the elimination of commercialism and authoritarianism in the book selection. The Must Books List should be managed autonomously, depending on the characteristics of each school and be updated annually. However, the most important thing is that the teacher should be a good reader himself. 5. It is better to include short stories than the long one in the Must Book List. Students should be guided to read explanatory text first and then to move to the original text. And they should be exposed to books in various subjects and not to be too dependent on the Must Books List. They should be able to develop the problem solving ability through the reading of the Must Books. 6. Finally, the Must Books selection committee should be composed of both teacher librarian and subject teachers. It is desirable that books for the cultivation of emotion, for the establishment of sense of value, and for the development of information ability should be selected by consulting the various reading lists compiled by the Ministry of Education, the Board of Local Education and other authorities concerned.

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Temporal Directmode for B Picture in H.264 / MPEG-4 AVC (H.264 / MPEG-4 AVC에서의 B 픽쳐를 위한 시간적 다이렉트 모드)

  • 전병문
    • Journal of Broadcast Engineering
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    • v.7 no.4
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    • pp.300-309
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    • 2002
  • The object of this paper is to make temporal direct mode clear by providing a solution to the following problem : if the co-located block in the list 1 reference picture for direct mode has only the 1ist 1 motion vector or both the 1ist 0 and list 1 motion vectors, then which motion vector will be used for the direct mode motion vector calculation\ulcorner This paper also shows how to derive reference picture index and direct mode motion vector for each list in order to guarantee the high coding efficiency. when the co-located macroblock is in intra mode. Furthermore, the reasonable calculation methods for the direct mode motion vectors in the various cases are presented. Finally, experimental results show that the proposed temporal direct mode provides the comparable performance against the spatial direct mode. Therefore, the simulation proves that the proposed temporal direct mode is acceptable.

An Efficient Index Scheme of XML Documents Using Node Range and Pre-Order List (노드 범위와 Pre-Order List를 이용한 XML문서의 효율적 색인기법)

  • Kim Young;Park Sang-Ho;Lee Ju-Hong
    • Journal of Internet Computing and Services
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    • v.7 no.4
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    • pp.23-32
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    • 2006
  • In this paper, we propose indexing method to manage large amount of XML documents efficiently, using the range of node and Pre-Oder List. The most of XML indexing methods are based on path or numbering method. However, the method of path-based indexing method shows disadvantages of performance degradation for join operations of ancestor-descendent relationships, and searching for middle and lower nodes. The method of numbers-scheme based indexing has to number all nodes of XML documents, since search overhead increased and the disk space for indexes was wasted. Therefore, in this paper, we propose a novel indexing method using node ranges and Preorder-Lists to overcome these problems. The proposed method more efficiently stores similar structured XML documents. In addition, our method supports flexible insertion and deletion of XML documents.

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Development of a Computer-Assisted Microbiological Quality Assurance Program for Hosipital Foodservice Operations (병원 급식시설의 미생물적 품질관리를 위한 전산 프로그램개발에 관한 연구)

  • Kwak, Tong-Kyung;Jang, Hye-Ja;Joo, Se-Young
    • Korean journal of food and cookery science
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    • v.8 no.2
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    • pp.137-145
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    • 1992
  • A computer-assisted microbiological quality assurance program was developed based on HACCP data obtained from a 500 bed general hospital by assessing time and temperature conditions and microbiological qualities of six categories of menu items according to the process of food product flow. The purpose of the study was to develop a computer-assisted microbiological quality assurance program in order to simplify the assessment procedures and to provide a maximum assurance to foodservice personnel and the public. A 16-Bit personnel computer compatible with IBM-PC/AT was used. The data base files and processing programs were created using dBASE III plus packages. The contents of the computerized system are summarized as knows: 1. When the input program for hazard analysis runs, a series of questions are asked to determine hazards and assess their severity and risks. Critical control points and monitoring methods for CCPs are identified and saved in Master file. 2. Output and search programs for hazard analysis are composed of 6 categories of recipe data file list, code identification list, and HACCP identification of the specific menu item. 3. When the user selects a specific category of recipe from 6 categories presented on the screen and runs data file list, a series of menu item list, CCP list, monitoring methods list are generated. When the code search program runs, menu names, ingredients, amounts and a series of codes are generated. 4. When the user types in a menu item and an identification code, critical control points and monitoring methods are generated for each menu item.

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Report on the Lichen List of North Korea (북한 지의류에 대한 보고)

  • Jeon, Hae-Sook;Koh, Young-Jin;Lokos, Laszlo;Lee, You-Mi;Byun, Bong-Kyu;Hur, Jae-Seoun
    • The Korean Journal of Mycology
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    • v.37 no.1
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    • pp.1-10
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    • 2009
  • Total 222 lichen specimens of North Korea including 23 family, 54 genera and 119 species were newly obtained from the Hungarian Natural History Museum for the last 3 years. Among them, 12 species were added to Korean lichen checklist as new. All the species were deposited at the herbarium of Korea National Arboretum. In addition, unpublished list of lichen species distributed in Mt. Myohang was kindly donated from the Hungarian Natural History Museum. The list was originally prepared by North Korean lichenologists and kept in the museum from 1988. In the list, 26 family, 57 genera and 179 species of lichens were described and 17 species were included as new reports. This list provided 29 lichen species as new to the Korean Peninsula. This information will make significant contribution to lichenological study in the Korean Peninsula.

A Study on Relation Analysis between Book and Category in Bibliotherapy Catalog (독서치료 독서목록에서의 카테고리와 치유서의 관계 분석 연구)

  • Baek, Jae Eun
    • Journal of the Korean BIBLIA Society for library and Information Science
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    • v.26 no.2
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    • pp.217-239
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    • 2015
  • For bibliotherapy, users should understand their own life situation, select and access the book (self-help book). User access to book through situation catalog (or list) in reading list, but user is difficult to define and simplify in one word after understanding their own situation. Catalog of bibliotherapy reading list classifies books using one situation category or maximum of two categories other than the age-specific classification. In this study, the author approached and analyzes based on the result of the research on the relationship between bibliotherapy and reading list, in order that access more efficiently to book what user wants. Bibliotherapy reading-list by using mapping and crosswalk between categories, and analyzes category of reading lists through comprehensive review.

Effect of herbal medicine on Poststroke cognitive deficit (뇌졸중후 인지기능저하의 한약치료에 대한 임상적 고찰)

  • Kim, Jae-Kyu;Heo, Jeong-Eun;Son, Yeon-Hui;Jeong, Hyun-Yun;Sin, Cheol-Kyung;Min, Sung-Soon;Kwon, Jung-Nam;Kim, Young-Kyun
    • Journal of Pharmacopuncture
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    • v.11 no.4
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    • pp.59-64
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    • 2008
  • Objectives The aim of study was to evaluate the effect of Herbal medicine on post stroke cognitive deficit. Methods All groups were treated with acupunture treatment, moxa treatment, herbal medicines, physical and occupational therapy for 4 weeks, additionally cardiotonic pills(CP) were taken in the cardiotonic pills group. The effect of treatment was assessed using Verval fluency, MMSE-KC, Word List Immediate Recall test. Statistical significance was achived if the probability was less than 5%(p,0.05). Results Verval fluency, MMSE-KC, Word List Immediate Recall test scores increased in both group. MMSE-KC, Word List Immediate Recall test scores were significantly increased in the CP group. Verval fluency, MMSE-KC, Word List Immediate Recall test scores were significantly increased in the control group. In the Verval fluency, MMSE-KC, Word List Immediate Recall test of the CP group more increased compared to the control group. There were no significant differences between two groups. In the CP group, the scores of the infarction group more increased compared to the hemorrhage group. Conclusions According to the these results, herbal medicines are effective to improve post stroke cognitive-deficit. Futher studies are needed to know cardiotonic pills in the ischemic stroke.