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Satisfaction Level on Practice Lesson of Student in Health and Industry Departments. (보건 및 공업계열 학생의 실습만족도에 관한 비교 연구)

  • 이순자
    • Korean Journal of Health Education and Promotion
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    • v.14 no.2
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    • pp.159-169
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    • 1997
  • This research has been produced by asking 274 department of health students and 232 students majoring industrial department from 27. Aug. 1997 to 05. Sep. 1997 and the results are as follows. 1. Satisfaction level on the contents was good, as you see the department of health part's level was 3.22 and the industrial part's level 3.14. 2. Satisfaction level on the practice circumstances was of low, department of health part's level was 3.25 and the industrial part's level was 2.82. 3. Satisfaction level on the length of practice time was as follows: Department of health part's level was 3. 25 and the industrial part's level was 3.08. 4. Satisfaction level on the teaching skill during practice was totally different each other: Department of health part's level was 2.10 and the industrial part's level was 2.76. 5. Satisfaction level on the evaluation and personal relationship was as below. Evaluation-department of health part's level was 2. 57 and the industrial part's level was 3.17. Personal Relationship-department of health part's level was 2.60 and the industrial part's level was 3.15. 6. Total satisfaction level was as follow: department of health part's level was 2.74 and the industrial part's level was 3.04. The satisfaction level for the student of industrial part was higher them that of health part.

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High Speed Motion Match Utilizing A Multi-Resolution Algorithm (다중해상도 알고리즘을 이용한 고속 움직임 정합)

  • Joo, Heon-Sik
    • Journal of the Korea Society of Computer and Information
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    • v.12 no.2
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    • pp.131-139
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    • 2007
  • This paper proposed a multi-resolution algorithm. Its search point and complexity were compared with those of block match algorithm. Also the speed up comparison was made with the block match algorithm. The proposed multi-resolution NTSS-3 Level algorithm was compared again with its targets, TSS-3 Level algorithm and NTSS algorithm. The comparison results showed that the NTSS-3 Level algorithm was superior in search point and speed up. Accordingly, the proposed NTSS-3 Level algorithm was two to three times better in search point and two to four times better in complexity calculation than those of the compared object, the block match algorithm. In speed up, the proposed NTSS-3 Level algorithm was two times better. Accordingly, the proposed multi-resolution NTSS-3 Level algorithm showed PSNR ration portion excellency in search point and speed up.

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Analysis of REBA, RULA, OWAS of Wearing and Taking off Skinscuba Equipment for Prevention of Musculoskeletal Injuries (스킨스쿠버 장비 착용 및 벗는 자세의 근골격계 상해 예방을 위한 REBA, RULA, OWAS 분석)

  • Son, Sung-Min;Kim, Yong-Jae
    • Journal of Fisheries and Marine Sciences Education
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    • v.23 no.1
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    • pp.67-74
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    • 2011
  • The study was constructed an analysis of postures of a expert diver's wearing and taking off with skinscuba equipment using ergonomics tools(REBA, RULA, OWAS) for prevention of Musculoskeletal injuries. This survey is consisted of 4 postures in terms of wearing and taking off : Crouching(alone), Standing(alone), Helping of assistance, Using of stanchion. Their rate of injuries is getting higher due to instability postures, exposed dangers and excessive physical actions. So this study provides basic and educational information for prevention of that. The result is as follows : The result of crouching postures of wearing alone was REBA 9(Ac Level 3), RULA 7(Ac Level 4), OWAS AC 2, and crouching postures of taking off alone was REBA 12(Ac Level 4), RULA 7(Ac Level 4), OWAS AC 4. The result of standing postures of wearing alone was REBA 8(Ac Level 3), RULA 7(Ac Level 4), OWAS AC 3, and standing postures of taking off alone was REBA 8(Ac Level 3), RULA 7(Ac Level 4), OWAS AC 3. The result of helping of assistance postures of wearing was REBA 4(Ac Level 2), RULA 3(Ac Level 2), OWAS AC 2, and standing postures of taking off alone was REBA 4(Ac Level 2), RULA 4(Ac Level 2), OWAS AC 1. The result of using of stanchion postures of wearing was REBA 3(Ac Level 1), RULA 3(Ac Level 2), OWAS AC 1, and standing postures of taking off alone was REBA 3(Ac Level 1), RULA 3(Ac Level 2), OWAS AC 1. Especially both postures of wearing and taking off alone showed high results in the analysis of postures using ergonomics tools(REBA, RULA, OWAS).

A Study on the perception Level of Nursing Students in the First Clinical practice (첫 임상 실습에 대한 간호학생의 인지 정도에 관한 연구)

  • Park Chung-Ja;Lee Kyung-Hee
    • Journal of Korean Academy of Fundamentals of Nursing
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    • v.1 no.2
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    • pp.149-164
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    • 1994
  • This stidy was carried out for purpose of investigating the degree of perception in the First clinical practice. The data of this study were collected by self-reported questionnaire composed of 5point rating scale measure the ideal level, satisfaction level and Stress level. For the analysis of the data, percentage, MANOVA, ANOVA and Scheffe test were 216 nursing students in 1 Junior College and 2 university in Taegu. Data was administrated from October 4 through 13, 1994 The results were as follow : 1. The average mean Score for the ideal level was 3.91 with a maximum possible score 5points. The highest mean score was infection controll 4.40 and the lowest mean score was comfort measure 3.44. The average mean score for the satisfaction level was 3.33 with a maximum possible score 5points. The highest mean score was Medication 3.54 and the lowest mean score was communication 3.01. The average mean score for stress level was 3.10 with a maximum possible score 5points. The highest mean score was spiritual and psychological care 3.45, the lowest mean score was Temperature controll 2.51. 2. In the analysis of the relationship between the ideal level, Satisfaction level and Stress level, no significant differance was found in college and university, religion, admission, satisfaction, health, economy, parent 3. In the analysis of the relationship between the ideal level, satisfaction level, stress level and general characteristics, significant difference was found in economicststus in the ideal level. Significant difference was found in economic status(upper class, middle class)in Scheffe test of the ideal level.

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Water Quality Level Model Using the Discriminant Analysis for the Small Streams of Rural Area in the Han River Watersheds (판별분석을 이용한 한강권역 농업용 하천수의 수질등급모형)

  • Choi, Chul-Mann;Lee, Jong-Sik;Cho, Nam-Jun;Ryu, Hui-Yong;Park, Seong-Jin;Kim, Jin-Ho;Yun, Sun-Gang;Lee, Jeong-Taek
    • Korean Journal of Environmental Agriculture
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    • v.27 no.2
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    • pp.105-110
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    • 2008
  • The main purpose of this work is the development of water quality level model using the data such as DO, EC, BOD, $COD_{Cr},\;NH_3-N,\;NO_3-N,\;PO_4-P$, T-N, T-P, and SS in 88 agricultural streams of the Han river watersheds. To grant water quality level for each parameters, it divided into 20% respectively in the order of water quality level. On the basis of the lowest water quality level, water quality of streams was assigned. As the result, number of stream corresponding to Level Ⅰ was 0, Level II was 1 stream, Level III was 3 streams, Level IV was 22 streams, and Level V was 62 streams. By standardized canonical discriminant function coefficient, $NO_3-N$ was the highest in 0.427 at the discriminant power. According to discriminant function for water quality level, it was equal to $-4.648+3.246{\times}[NO_3-N],\;-5.084+3.456{\times}[NO_3-N],\;-4.298+3.067{\times}[NO_3-N],\;and\;-7.369+4.396{\times}[NO_3-N]$ from Level II to Level V, respectively. As a result of test at real data of the Han river watersheds in 2007, the suitability of water quality level model was high to 88.4%.

Analysis of Core-level Spectra of the $Li/Ge(111)-3\times1$ Surface ($Li/Ge(111)-3\times1$ 표면의 Core-level 스펙트럼에 대한 분석 연구)

  • Cho, Hye-Jin;Kim, Yeong-Hoon;Lee, Geun-Seop
    • Journal of the Korean Vacuum Society
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    • v.15 no.1
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    • pp.31-36
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    • 2006
  • By analyzing the Ge 34 core-level photoelectron spectrum, we studied the structure of the $Li/Ge(111)-3\times1$ surface. Two surface related components tying on either side of the main bulk peak were identified in the Ge 3d spectrum. The existence and the position of the two surface components in the core-level spectrum from $Li/Ge(111)-3\times1$ is similar to those of the $Li/Ge(111)-3\times1$, suggesting the similarities in structure of the two surfaces. The core-level photoelectron spectra of the Li-induced $Li/Ge(111)-3\times1$ surface are well consistent with the honeycomb-chain-channel model, which was proposed as the structure of the $Si/Ge(111)-3\times1$ induced by alkali metals.

3-Level T-type Inverter Operation Method Using Level Change

  • Kim, Tae-Hun;Lee, Woo-Cheol
    • Journal of Electrical Engineering and Technology
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    • v.13 no.1
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    • pp.263-269
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    • 2018
  • In this study, a selective inverter operation between a 2-level voltage source converter (VSC) and a 3-level T-type VSC (3LT VSC) is proposed to improve the efficiency of a 3LT VSC. The 3LT VSC topology, except for its neutral-point switches, has similar operations as that of the 2-level VSC. If an operation mode is changed according to efficiency, the efficiency can be improved because efficiencies of each methods are depending on current and MI (Modulation Index). The proposed method calculates the power losses of the two topologies and operates as the having lower losses. To calculate the losses, the switching and conduction losses based on the operation mode of each topology were analyzed. The controller determined the operation mode of the 2- or 3-level VSC based on the power loss calculated during every cycle. The validity of the proposed control scheme was investigated through simulation and experiments. The waveform and average efficiency of each method were compared.

N-methyl-N'-nitro-N-nitrosoguanidine Reduces the Intracellular Calcium Level Through NAD Depletion in NIH3T3 Cells

  • Yoon, Yoo-Sik;Shin, In-Cheol;Kim, Jin-Woo;Kang, Ke-Won;Joe, Cheol-O
    • BMB Reports
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    • v.28 no.5
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    • pp.392-397
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    • 1995
  • The effect of N-methyl-N'-nitro-N-nitrosoguanidine (MNNG) on the intracellular $Ca^{2+}$ level was studied in NIH3T3 fibroblast cells. A reduction of the intracellular $Ca^{2+}$ level was observed after exposure to 300 ${\mu}m$ MNNG. However, the intracellular level of $IP_3$, a well-known regulator of $Ca^{2+}$ release from internal storage, was not changed by MNNG treatment. Instead, a reduction of the intracellular NAD level was observed. NAD as well as $IP_3$ stimulated intracellular $Ca^{2+}$ release from permeabilized cells. The treatment of 3-aminobenzamide, which inhibited the MNNG-induced reduction of the NAD level, also prevented the MNNG-induced decrease of the $Ca^{2+}$ level. Our data suggest that MNNG reduces the intracellular $Ca^{2+}$ level by NAD depletion in NIH3T3 cells.

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Three-phase 3-level and 2-level SVPWM Implementation with 100 kHz Switching Frequency using FPGA (FPGA를 이용한 100 kHz 스위칭 주파수의 3상 3-level과 2-level의 SVPWM의 구현)

  • Moon, Kyeong-Rok;Lee, Dong-Myung
    • Journal of IKEEE
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    • v.24 no.1
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    • pp.19-24
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    • 2020
  • This paper presents a 3-level, 2-level SVPWM technique with 100 kHz switching using Verilog HDL, one of the languages of FPGA. In the case of IGBT devices mainly used in inverters, they have a switching frequency around 20kHz. Recent research and development of next-generation power semiconductor devices such as GAN has enabled switching of more than 100kHz, which can miniaturize power converters, and apply various new algorithms due to the injection of harmonics. In the existing system using the IGBT, the control using the DSP is common, but the controller configuration for 100 kHz switching requires the use of FPGA. Therefore, this paper explains the theory and implementation of SVPWM applied to two-level and three-level inverters using FPGAs and verifies the performance through the output waveform. In addition, this paper implements 3-level SVPWM by using only one carrier instead of using two carriers in the conventional method.

A Study on the Analysis of Accuracy of SPOT Photos According to the Preprocessing Level (전처리 수준에 따른 SPOT 위성사진의 정확도 분석에 관한 연구)

  • 유복모;이현직
    • Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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    • v.9 no.1
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    • pp.83-96
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    • 1991
  • The use of SPOT Imagery is a growing trend in the field of small and middle scale mapping, as well as in establishing topographic database. This study is about 3-D positioning using the SPOT Imagery, where the accuracy and the gemetric characteristics of SPOT photos are analysed according to the preprocessing level (level 1AP,1B). As a result of this study the following could be determined, i. e 1) the geometric characteristics of SPOT Imagery according to the preprocessing level, 2) the optimal polynomial type for exterior orientations of each preprocessing level, and 3) the type of significant additional parameters. It was found that both the geometric precision and accuracy of level 1AP is higher than those of level 1B, which implies that level 1AP is more suitable for precise 3-D positioning and map production.

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