• 천문학논총
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• 제30권2호
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• pp.303-307
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• 2015

In this article, I give a brief description of Bicep2 experiment, and a summary of its result.

• 천문학회보
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• 제39권1호
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• pp.31-31
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• 2014

I provide an observer's view on the recent BICEP2 results. I begin with giving background information on the instrument and CMB polarization measurements. Based on a survey of the current debate, I will provide an overview on the conclusions to be drawn from the BICEP2 measurements which are actually mixed: on the hand, there is no doubt that the results are very important and exciting; on the other hand, it is probably premature to conclude that the observed signal is indeed cosmological.

• 천문학회보
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• 제39권1호
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• pp.30-30
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• 2014

I will review the generation of B-mode polarization from gravitational waves and their implications for inflation in light of the recent detection by BICEP2.

• 복식문화연구
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• 제9권1호
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• pp.33-43
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• 2001

In this study, both kinds of materials, that is, leather and woolen fabrics, which have similar thickness, have been adopted. To determine proper length of ease, not only sleeve cap height but also sleeve width has been adjusted mainly based on 5cm length of the ease, which follows maximum sleeve cap height, and then different length of ease, for example, 4cm, 3cm, 2cm and 1cm of ease, have been made. As a result, eighteen kinds in total of sleeves have been made: In other words, each nine kinds of both leather and woolen fabrics have different ease lengths. In addition, each sleeve has been inspected visually and functionally. Following conclusion has been gotten based on outcome of the study: 1. Proper ease length for manufacture of leather garment is said to be 1∼2 cm. As a result, ease length with higher sleeve cap height shall be 1∼2cm, while the length with lower sleeve cap height shall be 1cm or less. 2. Wider sleeve width has better function. Considering relations with sleeve cap height, sleeve width shall exceed +4cm of bicep line. 3. to satisfy a variety of those conditions while manufacturing leather garment, sleeve cap height, which is used for the manufacture of full dress and street wear garment, To lessen the ease length, body A.H shall be relatively loose under the arms, or pad shall be supplemented on the shoulder, so that the difference had better be lessened to solve such problems.

• 대한전자공학회논문지
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• 제24권2호
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• pp.280-291
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• 1987

In this paper, the linear autoregressive model of EMG signal for four basic arm functions was presented and parameters for each function were estimated. The signal identification was carried out using function discrimination algorithm. It was validated that EMG signal was a widesense stationary process and the linear autoregressive model of EMG signal was constructed through approximating it to Gaussian process. It was confined that Levinson-Durbin algoridthm is a more appropriate one than the recursive least square method for parameter estimation of the linear model. Optimal function discrimination was acquired when sampling frequency was 500Hz and two electrodes were attached to bicep and tricep muscle, respectively. Parameter values were independent of variance and the number of minimum data for function discrimination was 200. Bayesian discrimination method turned out to be a better one than parallel filtering method for functional discrimination recognition.

• 한국의류학회지
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• 제26권11호
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• pp.1502-1513
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• 2002

The purpose of this study was to find relations between construction factors and adaptability on the 5 available raglan sleeve patterns through the drafting method. Also it was to suggest a functional sleeve pattern according to appearance and adaptability test. Three women in her twenties who have standard figure was selected as subjects. Raglan sleeves of 5 experimental clothes were rated by the appearance test and adaptability test. The major conclusions of this study are as follows. 1. The construction factors of the raglan sleeve are sleeve slant, sleeve cap height, biceps line, breast width. Bicep lines increased and sleeve cap height decreased as the sleeve slant decreased. The higher adaptability scores of raglan sleeves were, the lower sleeve slants were. 2. According to the appearance evaluation, B type was recorded the highest score 3. According to the adaptability scores, A type was recorded the highest score. In the pulled length of the waist-line, A type was the lowest movements among the pattern type. In the pulled length of the sleeve-line, A type was the lowest movements among the pattern types. Therefore A type was evaluated by the bort functional sleeve pattern type. Through the experiments, it was known that appearance and adaptability of the raglan sleeve patterns were effected by construction factor.

• 한국운동역학회지
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• 제14권1호
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• pp.41-50
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• 2004

The objective of the study is to analyze the myoelectrical activity involved in performing the Swallow movement, a D-level technique, in order to use it as the basic research data in helping train gymnasts in how to perform strength-related techniques. To this end, four national representative athletes who participated in the 2002 Busan Asian Games were selected. The results of the comparison analysis of the individual models are summarized as follows. 1) The results of the E.M.G analysis showed that during the Swallow movement, the myoelectrical activity was detected higher in pectorialis major muscle and bicep brachii muscle than in trapezius muscle and deltoid muscle. 2) The results of the E.M.G analysis showed that during the Swallow movement, the myoelectrical activity was measured high in triceps brachii muscle and palmaris longus muscle, while the myoelectrical activity was recorded low in latissimus dorsi muscle and rectus abdominis muscle. 3) In performing the Swallow in the rings, the mean average (%) was found high in the order of erector spinae, pectorialis major muscle, palmaris longus muscle, triceps brachii muscle, deltoid muscle, latissimus dorsi muscle, and trapezius muscle. All taken together, the athletes showed a difference in the distribution of the muscles during the performance of the Swallow. The muscle that showed a constant distribution among the athletes was pectoralis major muscle, which proves that for a stable performance, it is ideal to increase the myoelectrical activity in pectoralis major muscle.

• 한국전문물리치료학회지
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• 제14권2호
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• pp.29-36
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• 2007

Muscle tone (stiffness/hardness) or muscle compliance changes during muscle contraction. The purposes of this study were to assess the intrarater and interrater reliabilities of the Myotonometer$^{(R)}$, electronic device that quantifies muscle tone. Two raters used the Myotonometer to assess the right bicep brachia and quadriceps muscles of 30 voluntary persons without any orthopedic or neurological problems (age range, 18~21 yrs). Muscles were measured in a relaxed state and during brief sustained voluntary maximal isometric contraction. Intrarater correlation coefficients were calculated for each muscle and for each condition (relaxed and contracted). Intrarater reliabilities (intraclass correlation coefficients, ICCs) ranged from .778 to .954, relaxed, biceps brachia), .926 to .963 (contracted, biceps brachia), .935 to .990 (relaxed, quadriceps) and .679 to .952(contracted, quadriceps). Interrater reliabilities ranged from .652 to .790 (relaxed, biceps brachii), .813 to .907 (contracted, biceps brachii), .831 to .950 (relaxed, quadriceps) and .849 to .937 (contracted, quadriceps). Myotonometer measurements had high to very high intrarater and interrater reliability for measurements of the biceps brachia and quadriceps muscles.

• 대한정형도수물리치료학회지
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• 제26권2호
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• pp.29-36
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• 2020

Background: The purpose of this study was to determine the effects of whole body vibration (WBV) exercise on lower extremity muscle activity and gait ability in stroke patients. Methods: For this study, 30 stroke patients participated in this study and they were divided into WBV exercise group and sham-WBV exercise group, each group in which consisted of 15 patients. WBV group and sham-WBV group was performed by the patients for five times a week, for six weeks. sEMG was used to measure lower extremity muscle activity. Changes in the activities of the muscles, such as the vatus lateralis (VL), vastus medialis (VM), bicep femoris (BF), gastrocnemius (GCM) muscle, were analysis. Motion analysis system was used to measure gait ability. Gait ability measured the stride length (SL) and walking velocity (WV). Results: According to the results of the comparisons between the groups, after intervention, lower extremity muscle activity of VL (p<.01), VM (p<.01), GCM (p<.01). SL, WV was significant between the group (p<.01). Conclusion: This study showed the WBV exercise is effective for improving increase of muscle activity and gait ability in stroke patients.

• 복식문화연구
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• 제22권2호
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• pp.300-312
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• 2014

This study seeks to offer practical suggestions for manufacturing jacket lining patterns through research on menswear brands. A researcher conducted interviews with a survey instrument targeting 12 menswear brands. To analyze the data, descriptive statistics were obtained using SPSS 18.0. The main findings were as follows. First, regarding lining production, most menswear brands were found to provide jacket lining patterns to their subcontractors, and pattern makers were found to design lining patterns based on their own know-how. The most important factor in the production of jacket lining patterns is whether linings are cut more than once during the sewing process. For suit jackets, linings are cut more than once, and for casual jackets, linings are cut once. Second, with regard to jacket production for different jacket styles, most menswear brands were found to use patterns that include seam allowance. Partial linings showed differences in terms of the methods used to sew edges and attach linings to the outer shell. Third, extra space in jacket lining patterns varied according to style. Jacket lining patterns for suit jackets and casual jackets showed differences in extra space in the following areas: the parts that cover the chest(suit jacket linings: 5.6cm, casual jacket linings: 2.4cm), the parts that cover the waist(suit jacket linings: 3.8cm, casual jacket linings: 1.3cm), hem(suit jacket linings: 2.7cm, casual jacket linings: 1.3cm), and bicep(suit jacket linings: 2.7cm, casual jacket linings: 1.1cm). However, extra space in the sleeve hems was identical for the two styles(suit jacket linings: 0.1cm, casual jacket linings: 0.1cm). Therefore, this research suggests that clothing manufacturers design linings in accordance with the jacket lining production style.