• Title, Summary, Keyword: HAL

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A Study for Assessing Exposure to Musculoskeletal Disorders Risk Factors among the Cooking & Housekeeping Jobs in Hotel work using PATH Method (PATH 기법을 이용한 숙박업 요리직과 청소직의 근골격계질환 유해요인 노출평가에 관한 연구)

  • Kim, Day-Sung;Park, Jung-Keun;Han, Young-Sun
    • Journal of the Ergonomics Society of Korea
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    • v.28 no.4
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    • pp.83-89
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    • 2009
  • This study was conducted to assess exposure to musculoskeletal disorders risk factors in the cooking & housekeeping jobs in hotel work. PATH (posture, activity, tools and handling) method was used for data collection at the 6 hotel settings in different regions across Korea. From 26 workers, a total of 949 PATH observations were obtained. The highest percent time on non-neutral posture was 78% for pinch grip, followed by 74%(wrist deviation), 52%(trunk posture), 37%(shoulder/arm posture), and 30%(neck posture). The highest percent time in the three HAL variables was 47% for HAL-cat2. The percent time of items in relation to both loads with more than 5kg and contact stress was less than 2%. The hotel workers were not exposed to vibration.

Arabidopsis AHL Gene Encodes a 3'(2'),5'-Bisphosphate Nucleotidase Sensitive to Toxic Heavy Metal Ions

  • Cheong, Jong-Joo;Kwon, Hawk-Bin
    • Journal of Applied Biological Chemistry
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    • v.42 no.4
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    • pp.169-174
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    • 1999
  • Arabidopsis AHL gene contains 4 exons encoding a putative protein highly homologous to the yeast salt-sensitive enzyme HAL2, a 3'(2'),5'-bisphosphate nucleotidase involving in reductive sulfate assimilation. AHL cDNA complemented yeast met22 (hal2) mutant. AHL fusion protein expressed in E. coli exhibited $Mg^{2+}$-dependent, 3'-phosphoadenosine 5'-phosphate (PAP)-specific phosphatase activity. $Li^+,\;Na^+,\;K^+$ and $Ca^{2+}$ ions inhibit the enzyme activity by competing with $Mg^{2+}$ for the active site of the enzyme. The enzyme activity was also sensitive to ${\mu}M$ concentrations of toxic heavy metal ions such as $Cd^{2+},\;Cu^{2+}$ and $Zn^{2+}$, but was not recovered by addition of more $Mg^{2+}$ ions, suggesting that these ions inactivate the enzyme with a mechanism other than competition with $Mg^{2+}$ ions. Inhibition of the AHL enzyme activity may result in accumulation of PAP, which is highly toxic to the cell. Thus, the AHL enzyme could be one of the intial targets of heavy metal toxicity in plants.

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A study on the Android Set-top Box for multiple wireless network module support (안드로이드 셋톱박스의 다중 무선 네트워크 모듈 지원 방법에 관한 연구)

  • Han, Kyung-Sik;Kim, In-Ki;Min, Tae-Hoon;Sonh, Seung-Il;Kang, Min-Goo
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • pp.659-661
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    • 2013
  • This paper, we study on multiple wireless network module support for the Android based set-top box. Limitation of mobile OS, Android based set-top box has limited choice of various wireless network modules, Atheros, Realtek, Ralink, etc. In this paper, for the request of Set-top box supplier and market demands, we research on reconfigure & change the Android network HAL(Hardware Abstract Layer) for Wi-Fi networking support and implementation about multiple Wi-Fi module support platform.

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A Critical Analysis on Definitions of Biyoul and Value of Bi in Elementary Mathematics in Korea (우리나라 초등학교 수학에서의 비율 정의와 비의 값 정의의 비판적 분석)

  • Park, Kyo-Sik
    • Journal of Educational Research in Mathematics
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    • v.20 no.3
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    • pp.397-411
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    • 2010
  • In this paper, definitions of biyoul and value of bi in elementary mathematics in Korea are critically analysed. And identity of halpunri is reviewed. Regarding biyoul, it is suggested that the use of term 'biyoul' is restricted to such cases when the quantity to be compared and the quantity to be a base have same measuring unit, without consider ing biyoul in terms of two numbers. it is suggested to use "the number which express how many times the quantity to be compared is contained by the quantity to be a base is called biyoul." as a definition of biyoul. It is suggested to use "value of bi A : B is A/B" as a definition of value of bi. Halpunri is a variation of halbunri, which is coined by putting hal, pun, and ri together in purpose of using in school mathematics. The tem1 corresponding halpunri is 'bohap', however, in this paper it is suggested to use halpunri after defining it instead of using bohap. In that halpunri is an acclimatized term of bohap, and considered as a biyoul not as a way to indicate biyoul, it is suggested to use "biyoul when the quantity to be a base is considered 10." as a definition of halpunri. It is suggested to see hal, pun, and ri are units for halpunri, and call decimal 0.1 expressing biyoul 1 hal, decimal 0.01 expressing biyoul 1 pun, decimal 0.001 expressing biyoul 1 ri respectively.

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Harmonic Analysis in AC Electric Arc Furnace (교류 전기 아크로 시스템의 고조파 해석)

  • Min, Joon-Ki;Lee, Sang-Hoon;Kim, Jae-Sik;Choi, Jae-Ho;Park, Tae-Joon;Lee, Wang-Ha
    • Proceedings of the KIEE Conference
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    • pp.1239-1241
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    • 2000
  • This paper discussed for hal·monic analysis in AC electric arc furnace. The arc furnace system is designed by a harmonic current source with considering voltage stabilizer. In this paper, an adequate example is shown for the IEEE harmonic limits when a tuned filter is installed. The simulation established by HI_WAVE of SKM.

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일본 특허정보 활용사례

  • Kim, Bong-Jin
    • Patent21
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    • pp.16-17
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    • 2003
  • 일본에서도 특허통계를 가지고 다양한 분석을 수행하는 방법에 대한 소개가 많이 되어 있다. 특허통계를 이용한 분석이 점점 증가하는 이유는 특허출원이 어느 정도는 기업의 연구개발의 활성도를 반영하고 있기 때문이다. 이번에 소개할 특허출우너순위로 본 기업의 연구투자와 가격결정자란 보고서는 경제산업조사회의 특허뉴스(2001.8.16)와 토미타 교수의 홈페이지(http;//hal2000.itakura.to.yo.ac.jp/~t4tomita)에 연재되어있는 것으로 1995년부터 1998년까지 공개된 특허정보를 대상으로 개별특허의 가치평가를 배제하고 일본에 출원된 기업의 특허건수 순위를 통해 분석한 보고서이다.

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Red emission organic light-emitting diode with electrochemically deposited PANI-CSA layer

  • Kim, Ju-Seung;Kim, Dae-Jung;Gu, Hal-Bon
    • Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference
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    • pp.81-84
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    • 2003
  • Conductive polyaniline(PANI)-camphosulfonic acid (CSA) film applied as a hole injection layer in ITO/PANI/P3HT/LiF/Al device. In the AFM images, electrochemically polymerized PANI-CSA films have the small particles and smooth sufficient for application as hole injection layer. By insertion of PANI-CSA buffer layer, the turn on voltage of ITO/PANI/P3HT/LiF/Al device lowed by 3V, whereas that of ITO/P3HT/LiF/Al device shows 5V.

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A Comparison of HPL of RAIM Algorithm (RAIM 알고리즘의 허용오차 경계 비교)

  • 이중원;지규인
    • 제어로봇시스템학회:학술대회논문집
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    • pp.52-52
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    • 2000
  • The HPL(Horizontal Protection Limit) means bound of radial horizontal error with given probability in satellite navigation system. RAIM algorithm is not available if HPL exceeds HAL (Horizontal Alert Limit). So exact calculation of HPL is very significant in RAIM algorithm. In this paper the methods that calculate HPL their own way a]:e studied and compared by simulation. And availability of RAIM algorithm is evaluated also.

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Ajax Craft For Dynamic Interface Design (다이내믹 인터페이스 설계를 위한 Ajax 기술)

  • Kim, Eun-Ju
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.249-252
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    • 2006
  • 인터랙티브 웹 애플리케이션 개발 도구로 인기를 얻고 있는 Ajax 기술을 이용하여 웹에서 사용하는 도움말(Help) 기능에 적용하였다. 현재 가장 많이 사용하는 MVC 모델(Model, View, Control)은 비즈니스 로직을 서버쪽에 있는 Control에서 모두 처리하지만 Ajax 애플리케이션은 Client 에 있는 브라우저의 JavaScript에서 모두 처리하는 개념이다. 도움말 기능에 Ajax 기술을 사용함으로써 애플리케이션의 응답성이 향상되고 웹 서버의 부담이 줄어 들게 된다.

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