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Designing SCA-Based Component Framework for Dynamic Deployment of SDR Components (SDR 컴포넌트의 동적 배치를 위한 SCA 기반 컴포넌트 프레임워크의 설계)

  • 김세화;홍성수;장래혁
    • Journal of KIISE:Computing Practices and Letters
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    • v.9 no.3
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    • pp.241-253
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    • 2003
  • SCA (Software Communication Architecture), which has been adopted as a SDR(Software Defined Radio) Forum standard, provides a framework that successfully exploits common design patterns of embedded systems software. However, the SCA is inadequate as a component framework since it does not explicitly specify (1) a component model that defines how to express a component interface and how to implement it, (2) a package model that defines what and how to package in deployment units, and (3) a deployment model that defines the deployment environment and deployment process. In this paper, we propose a SCA-based component framework for SDR. Specifically, we present (1) a component model that defines a component as a specialized CORBA object that implements object management functionality, (2) a package model exploiting the existing XML descriptors of the SCA, and (3) a deployment model that defines a SCA-based deployment environment, a boot-up process that restores the deployment state, and a deployment process that supports lazy application instantiation and dynamic component replacement.

Research on Growing Progress of Foot Size to Improve Appellation of Shoe Sizes (신발 사이즈 호칭 개선을 위한 발치수 성장 추이 탐색)

  • Choi, Young-Lim
    • Fashion & Textile Research Journal
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    • v.14 no.3
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    • pp.448-453
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    • 2012
  • This study aims to categorize age groups for shoes manufacturing including shoes size and boot tree development for Koreans. In order to carry out the research, the characteristics of different parts of foot in relation to size are analyzed according to age and sex, making use of human body measurement database. As a result of statistical analysis, it was found that the measurement items such as foot length, metatarsal tibiale, foot breadth and instep circumference of a person reached the range of standard deviation and average numerical figures of an adult group (18-24) from the age of 14 in men's case, and from 12 for women's case, which indicates the time of completion of their foot growth. Based on these findings where males of 14 years old and females of 12 are within similar measurement range to adults, it is necessary to categorize the age groups for shoe sizing system into the following four groups: males 13 years old or under, males 14 years old or over, females 11 years or under, and females 12 years or over. The proportional measurement produced by dividing each measurement item of foot parts by foot length was compared in an independent samples t-test, and there were meaningful differences according to different foot shapes of the two age groups of males 13 or under - males 14 or over, and females 11 or under - females 12 or over. Also, the independent samples t-test for the age groups of males 13 or under - females 11 or under, and males 14 or over - female 12 or over, showed similar meaningful differences, which indicates the differences in foot shapes of male and female during the period of growth.

Effects of Mixed Seeding of Main Revegetation Plants Treated with Different Seeding Amounts of Pennisetum alopecuroides on Cut-Slope Revegetation (수크령 파종량에 따른 주요녹화식물의 혼파가 비탈면 녹화에 미치는 영향)

  • Ham, Kyung-Sik;Shim, Sang-Ryul
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.18 no.1
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    • pp.25-35
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    • 2015
  • Pennisetum aloperculoides is a key revegetation species mixed with other plants species and used for revegetating cut-slopes. The purpose of this research is to identify the effects of mixed seeding of revegetation plants on cut-slope revegetation with respect to the quantity of Pennisetum aloperculoides seeds. The coverage ratio and appearance frequency of Pennisetum aloperculoides, and other revegetation species were measured to assess the cut-slope revegetation. We divided Pennisetum treatments into four groups with different Pennisetum seed quantities of $0g/m^2$, $5g/m^2$, $10g/m^2$, and $15g/m^2$. For each treatment group, we mixed identical quantities of seeds from herbaceous flowers (bird's-boot trefoil, aster, chrysanthemums, golden coreopsis and china pink), cool-season turfgrasses, and woody plants (korean lespedeza, indigo and silk tree). The increase in the quantity of the Pennisetum seeds resulted in the higher coverage ratio for Pennisetum, but in the lower coverage ratio for herbaceous flowers, cool-season turfgrasses, and woody plants. We observed a short-term succession process in which the dominant species shifted in the following order: the initial species Pennisetum, herbaceous flowers, and then lastly woody plants. In case of the appearance frequency, we also observed the higher appearance frequency for Pennisetum and the lower appearance frequency for the other plants due to the increase in the quantity of Pennisetum seeds. Pennisetum, bird's-foot trefoil and china pink showed the tendency to decrease the appearance frequency from one month after seeding while cool-season turfgrasses became extinct due to summer drought. In the woody plants, the appearance frequencies of korean lespedeza and indigo were high due to the decrease in quantity of Pennisetum seeds. The silk trees were damaged from winter frost and none emerged at all in 2013 (the following year after the seeding). Korean lespedeza and indigo appeared to have the short-term rapid dominance over other treated revegetation plants.

The Legal Sociological Study on the Reality of Civil Mediation and it's Activating Policy - in Jurisdiction of Gwangju & Chonnam District Court - (민사조정의 운영실태와 그 활성화방안에 관한 법사회학적 연구 - 광주 및 전남지역의 법원을 중심으로 -)

  • Oh, Dae-Sung
    • Journal of Arbitration Studies
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    • v.17 no.2
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    • pp.189-219
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    • 2007
  • Mediation is type of intervention in which the disputing parties accept the offer of the judge or a third party to recommend a solution for their controversy. Mediation differs from arbitration in being a voluntary resolution rather than a judicial procedure. Thus, the parties to the dispute are not bound to accept the mediator's recommendation. Resort to mediation has become increasingly frequent for civil disputes. Mediation has been successful in many cases of civil conflict. Mediation has become increasingly important for monetary disputes as well, particularly in damage cases. While most people consider mediation a far superior experience to court, everything I tell you a mediator should not do is something that at least one mediator I have dealt with has done to a client. In theory, a mediator should never share anything you tell him or her without your permission. In theory a mediator should not "spring" evaluations on anyone in a mediation without your permission (e.g. a mediator should never say "your case is worth \OOOO and I just told the other side that). In theory a mediator should not browbeat or threaten you. At the end, usually about 55% of the time with a good mediator in Kwangju Appellate Court in 2003, the parties reach an agreement that is in their best interests. If they decide to sign off on a signed agreement, the signed agreement is binding. I obviously feel mediation is a very good thing and the numbers and surveys bear me out. This article is written about how mediation is proceeded, what is the realities, what is the problem and what is the activating way. For this study, I research with legal sociological approach using Korean Judicial Year Boot judicial document and my experience as meditator in Kwangju District Court.

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Soft Real-time Capabilities and Communication Performance Evaluation in Qplus for Multimedia Streaming Service (멀티미디어 스트리밍 서비스에 대한 QPLUS의 연성 실시간 및 통신 성능 평가)

  • Lee, GowangLo;Bae, ByeongMin;Lee, InHan;Kim, MinJung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.301-304
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    • 2013
  • In this paper, to improve the fast boot and soft real-time for the responsiveness in Qplus with relative evaluation rather than an absolute evaluation using validated to perform the services actually used. Qplus is included soft real-time, fast booting, and file system technology. There is a development board that mounted on an embedded Linux and Qplus. AV (Audio / Video) group communications is ported on the development board for soft real-time multimedia streaming services and to evaluate the performance of communication. We performed three major evaluation such as booting time measurement experiment, own performance measurement experiments for soft real-time measurement experiment, and performance measurement experiments for via the network communication performance evaluation. They are a practical Qplus performance evaluation and analysis.

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Design and Evaluation of a Fast Boot-up Technique for Flash Memory based Computer Systems (플래시메모리 기반 컴퓨터시스템을 위한 고속 부팅 기법의 설계 및 성능평가)

  • Yim, Keun-Soo;Kim, Ji-Hong;Koh, Kern
    • Journal of KIISE:Computer Systems and Theory
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    • v.32 no.11_12
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    • pp.587-597
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    • 2005
  • Flash memory based embedded computing systems are becoming increasingly prevalent.These systems typically have to provide an instant start-up time. However, we observe that mounting a file system toy flash memory takes 1 to 25 seconds mainly depending on the flash capacity. Since the flash chip capacity is doubled in every year, this mounting time will soon become the most dominant reason of the delay of system start-up time Therefore, in this paper, we present instant mounting techniques for flash file systems by storing the In-memory file system metadata to flash memory when unmounting the file system and reloading the stored metadata quickly when mounting the file system. These metadata snapshot techniques are specifically developed for NOR- and NAND-type flash memories, while at the same time, overcoming their physical constraints. The proposed techniques check the validity of the stored snapshot and use the proposed fast trash recovery techniques when the snapshot is Invalid. Based on the experimental results, the proposed techniques can reduce the flash mounting time by about two orders of magnitude over the existing de facto standard flash file system, JFFS2.

Effects of Latin hypercube sampling on surrogate modeling and optimization

  • Afzal, Arshad;Kim, Kwang-Yong;Seo, Jae-won
    • International Journal of Fluid Machinery and Systems
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    • v.10 no.3
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    • pp.240-253
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    • 2017
  • Latin hypercube sampling is widely used design-of-experiment technique to select design points for simulation which are then used to construct a surrogate model. The exploration/exploitation properties of surrogate models depend on the size and distribution of design points in the chosen design space. The present study aimed at evaluating the performance characteristics of various surrogate models depending on the Latin hypercube sampling (LHS) procedure (sample size and spatial distribution) for a diverse set of optimization problems. The analysis was carried out for two types of problems: (1) thermal-fluid design problems (optimizations of convergent-divergent micromixer coupled with pulsatile flow and boot-shaped ribs), and (2) analytical test functions (six-hump camel back, Branin-Hoo, Hartman 3, and Hartman 6 functions). The three surrogate models, namely, response surface approximation, Kriging, and radial basis neural networks were tested. The important findings are illustrated using Box-plots. The surrogate models were analyzed in terms of global exploration (accuracy over the domain space) and local exploitation (ease of finding the global optimum point). Radial basis neural networks showed the best overall performance in global exploration characteristics as well as tendency to find the approximate optimal solution for the majority of tested problems. To build a surrogate model, it is recommended to use an initial sample size equal to 15 times the number of design variables. The study will provide useful guidelines on the effect of initial sample size and distribution on surrogate construction and subsequent optimization using LHS sampling plan.

Respiratory Syncytial Virus Outbreak in the Basic Military Training Camp of the Republic of Korea Air Force

  • Park, Won-Ju;Yoo, Seok-Ju;Lee, Suk-Ho;Chung, Jae-Woo;Jang, Keun-Ho;Moon, Jai-Dong
    • Journal of Preventive Medicine and Public Health
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    • v.48 no.1
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    • pp.10-17
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    • 2015
  • Objectives: An outbreak of acute febrile illness occurred in the Republic of Korea Air Force boot camp from May to July 2011. An epidemiological investigation of the causative agent, which was of a highly infective nature, was conducted. Methods: Throat swabs were carried out and a multiplex reverse transcriptase-polymerase chain reaction (RT-PCR) assay was performed to identify possible causative factors. Results: The mean age of patients who had febrile illness during the study period was 20.24 years. The multiplex RT-PCR assay identified respiratory syncytial virus (RSV) as the causative agent. The main symptoms were sore throat (76.0%), sputum (72.8%), cough (72.1%), tonsillar hypertrophy (67.9%), and rhinorrhea (55.9%). The mean temperature was $38.75^{\circ}C$ and the attack rate among the recruits was 15.7% (588 out of 3750 recruits), while the mean duration of fever was 2.3 days. The prognosis was generally favorable with supportive care but recurrent fever occurred in 10.1% of the patients within a month. Conclusions: This is the first epidemiological study of an RSV outbreak that developed in a healthy young adult group. In the event of an outbreak of an acute febrile illness of a highly infective nature in facilities used by a young adult group, RSV should be considered among the possible causative agents.

Location-based Services to Support Using Mobile Android Hiking Application "배낭메Go" (위치정보검색 기반의 '배낭메Go' Application 개발에 관한 연구)

  • Park, Sang Hyun;Kim, Kyung Hoon;Sim, Seung Bo;Park, Se Hee;Moon, Songchul
    • Journal of Service Research and Studies
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    • v.2 no.2
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    • pp.81-90
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    • 2012
  • Hardware technology will be widen the area of involvement. If the smart phone capabilities by the pc, PC-free areas will have much higher utilization of smartphones. even subway or bus. and You also enjoy the game and information that you want to connect to the Internet. Because of the advantages of these smartphones, the world market has become more spread by the phone. In the recently, You need to boot your PC or notebook. In this project, using the GPS feature, and Android hiker safety and convenience applications for the purpose. Consumer-friendly via search for the mobile devices around the mountain and near by mountain. and we may be able to help the trail more easily research and develope that were using.

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Biomechanical Application of Plantar Pressure Distribution for Walking on Uneven Rocky Surface (Uneven Rocky Surface 이동 시 압력분포를 적용한 운동역학적 활용)

  • Chung, Yong-Min
    • Korean Journal of Applied Biomechanics
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    • v.19 no.2
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    • pp.387-397
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    • 2009
  • Physical activity has been increased with increased leasure time. Specifically, due to our mountainous geographical benefits, people actively participate in hiking and climbing as regular daily activities. Thus, more stable and comfortable hiking boots are required to walk on uneven and sloped rocky surface for a long period of time. 5 male subjects were recruited for testing planter pressure patterns of four different conditions(barefoot, classic hiking boot, stiffness 60 and stiffness 65). Tested hiking boots(stiffness 60 and stiffness 65) consists of the multiple pieces of outsoles as they are designed for a better shock absorption. In the results, some positive aspects of stiffness 60 and stiffness 65 such as wide contact area and powerful propulsive patterns at take off was observed compared to the classic hiking boots. Therefore, biomechanical development of hiking related clothes and footwear as well as equipment would be beneficial for people who enjoy hiking to maximize their quality of activities.