• 제목/요약/키워드: physical theory

검색결과 1,516건 처리시간 0.027초

경락순행통로 학설의 객관화를 위한 물리자극과 반사파의 스펙트럼 분석 (A Spectrum Analysis of Reflection wave on Physical stimulus for the Objectification of Meridian Pathway & Channel Theory)

  • 이후학;정동명
    • 대한의용생체공학회:학술대회논문집
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    • 대한의용생체공학회 1997년도 추계학술대회
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    • pp.255-259
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    • 1997
  • The essence of meridian collateral and acupoints is an overall physiologic unction with the level of multiple unctional states. However it is a pity that until present, so in this paper described about some experimental results of physical reactions of meridian and acupoints. In order to verify meridian pathway and channel theory of energy in body. It is suppose that substance of meridian is pathway channel of the meridian materials. In basic examination, It was analyzed spectrum of reflection waves after beat or continuos vibrate to meridian point and non-meridian point meridian line and non-meridian line. The characteristics of reflection waves similar to flow channel in hydrodynamic. So it be able to suggest that the meridian is pathway and channel in body.

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Elastic α-12C Scattering with the Ground State of 16O at Low Energies in Effective Field Theory

  • Ando, Shung-Ichi
    • Journal of the Korean Physical Society
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    • 제73권10호
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    • pp.1452-1457
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    • 2018
  • Inclusion of the ground state of $^{16}O$ is investigated for a study of elastic ${\alpha}-^{12}C$ scattering for the l = 0 channel at low energies in effective field theory. We employ a Markov chain Monte Carlo method for the parameter fitting and find that the uncertainties of the fitted parameters are significantly improved compared to those of our previous study. We then calculate the asymptotic normalization constants of the $0^+$ states of $^{16}O$ and compare them with the experimental data and the previous theoretical estimates. We discuss implications of the results of the present work.

A hybrid evaluation of information entropy meta-heuristic model and unascertained measurement theory for tennis motion tracking

  • Zhong, Yongfeng;Liang, Xiaojun
    • Advances in nano research
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    • 제12권3호
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    • pp.263-279
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    • 2022
  • In this research, the physical education training quality was investigated using the entropy model to compute variance associated with a random value (a strong tool). The entropy and undefined estimation principles are used to extract the greatest entropy of information dependent on the index system. In the study of tennis motion tracking from a dynamic viewpoint, such stages are utilized to improve the perception of the players' achievement (Lv et al. 2020). Six female tennis players served on the right side (50 cm from the T point). The initial flat serve from T point was the movement under consideration, and the entropy was utilized to weigh all indications. As a result, a multi-index measurement vector is stabilized, followed by the confidence level to determine the structural plane establishment range. As a result, the use of the unascertained measuring technique of information entropy showed an excellent approach to assessing athlete performance more accurately than traditional ways, enabling coaches and athletes to enhance their movements successfully.

Effect of exercise on the stability of protein tissues

  • Liu, Weixiao;Liu, Yaorong
    • Advances in nano research
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    • 제13권5호
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    • pp.487-497
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    • 2022
  • This study investigates the stability of protein tissues regarding the vibration analysis based on the classical beam theory coupled with the nonlocal elasticity theory concerning the exercise impact. As reported in the previous research, four different types of protein tissues are supposed, and the influence of sports training is investigated. The protein tissues are made of protein fibers surrounded by an elastic foundation. The exercise enhances the muscle area and plays an essential role in the stability and strength of protein and muscle tissues. The results are examined in detail to examine the impact of different parameters on the stability of nano protein fibers.

태권도 주춤서 지르기에서 Stretch-Shortening Cycle 이 관절파워에 미치는 효과 (The Effect of Stretch-Shortening Cycle on the Joint Power of the Jireugi in the Taekwondo Juchumseogi Stance)

  • 최치선;정철수;신인식
    • 한국운동역학회지
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    • 제24권1호
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    • pp.1-9
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    • 2014
  • The purpose of this study was to investigate the muscle mechanical properties of the pelvic axial pre-rotational movement for the Jireugi in the Taekwondo Juchumseogi stance. Eleven elite Taekwondo Poomsae athletes participated. Each participant performed 5 right hand Jireugi in Juchumseogi stance as fast and strong as possible while their motion was recorded by a 3D motion analysis system and the ground reaction forces by two force plates. The power and work of the muscular group surrounding the waist were analyzed to verify the effect of the stretch-shortening cycle (SSC) theory. The cause of the greater power seems to be the application of the SSC by the muscles surrounding the waist during the preparation phase of the pre-rotation group. For the none pre-rotation group, they only used the concentric contraction of the muscles surrounding the waist. Because the pre-rotation group used the SSC theory, they had the effect of shortening of the range of movement, creating a fast and more powerful rotation, thus anticipating the increase the magnitude of impact.

3.5 mm 동축형 미소열량계 개발과 전자파전력 측정표준 확립 (Development of a 3.5 mm Coaxial Microcalorimeter for Microwave Power Standards)

  • 권재용;김정환;강태원
    • 한국전자파학회논문지
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    • 제20권9호
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    • pp.989-996
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    • 2009
  • 전자파전력은 전자파 측정표준 분야의 기본 측정량이며, 관련된 주요 전자파 측정량, 예를 들면 감쇠량, RF 전압, 안테나 특성, 전자기장의 세기 등의 국가 표준을 확립하는데 직접 사용된다. 본 논문에서는 전자파전력 측정에 필요한 전자파전력계와 전력 감지기의 측정 원리를 다룬다. $50\;MHz{\sim}26.5\;GHz$의 주파수 범위에서 동작 하는 전자파전력 국가 표준 원기인 3.5 mm 등축형 미소열량계의 설계, 제작에 있어서의 핵심 사항에 대해서 다루고, 미소열량계를 중심으로 구성된 전력 측정 시스템의 구조 및 동작 원리를 고찰한다.

초산모의 모유수유 경험 (A Study of Primiparous Womens Breastfeeding Experience)

  • 김신정;양숙자
    • 대한간호학회지
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    • 제27권3호
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    • pp.477-488
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    • 1997
  • The purpose of this study was to understand the subjective breastfeeding experience of primiparous women to identify how breastfeeding was started and to explore the process of breastfeeding. The Grounded theory methodology was used. Data was collected from 6 primiparous women who had breastfed their infants for at least over 8weeks, recently breastfeeding or having breatfed their infants within the last 6 months. With the permission of the subjects, the interviews were recorded and transcribed. The data were analysed in the framework of grounded theory method as mapped out by Strauss and Corbin(1990). 105 concepts and 21 subcategories were confirmed in the analysis. In the process of data analysis, "Identity as a mother" was found to be the core phenomenon. The 21 sub-categories were as follows : natural food, neighbour inducement, self purpose, good feeling, tenderness, breast pain, change of breast shape, physical discomfort, loss of physical energy, confirmation of maternal role, formation of affection feeling of adhesion, one body through coupling, tie, capacity, role performance, mental comfort, healthy mother, healthy infant, confidence of breast milk, feeling of satisfaction. The sub -categories were again grouped into 14 categories including infant nutritious food, formation of breastfeeding opportunity, feeling of satisfaction, injury of the breast, physical suffering, awareness of mothering, formation of maternal affection, connecting, coupling, acceptance, effort, emotional stability, mother and child health and feeling of achievement.hievement.

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과일류의 기미론(氣味論) 연구 - "동의보감" [탕액편]과 "임원십육지" [정조지] 중 <식감촬요>를 중심으로 - (The Kimi Theory on Fruits - Focused on [Tangaekpyeon] in ${\ulcorner}$Donguibogam${\lrcorner}$ and of [Jeongjoji] in ${\ulcorner}$Limwonsibyukji${\lrcorner}$ -)

  • 송윤진;차경희
    • 한국식품조리과학회지
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    • 제22권6호통권96호
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    • pp.930-939
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    • 2006
  • Classifying Fruits recorded in Tangaekpyeon of Donguibogam and Sikgamchalyo of Jeongjoji of Limwonsibyukji and comparing the types, features, efficacy and side effects based on Kimi Theory(氣味), we found forty one fruits in Donguibogam and forty eight in Limwonsibyukji. As well as fresh fruits, soup, gruel, dry fruit, and powder, peel, stem, leaf, and root were also used. According to the literature, Fruits are classified by five conditions(五氣) and five tastes(五味) and many are mild with sweet taste or warm with sweet and sour taste. They are efficacious in protecting the five viscera, building up energy, controlling heat, calming febrile diseases, promoting urination and excretion, antidiarrhetic, calming cholera morbus, improving skin condition calming the stomach, neutralizing poisonous effects and improving eyesight. To help prevent and cure diseases, those with cold physical constitution must take warm Fruits to vitalize their physiology and those with hot physical constitution cold Fruits for balance. To improve their physical health, our ancestors tried to control their bio rhythm with food and medicinal material and promoted health and prevented diseases by taking such food. We therefore expect that we can have a healthy dietary life by taking advantage of the five conditions and five tastes of Fruits and continuing the spirit of Korea traditional food culture.

A Comparative Study of Oswestry Back Pain Disability Questionnaire Versus Computer Adaptive Testing for Measuring Back Pain

  • Choi, Bong-Sam
    • 한국전문물리치료학회지
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    • 제20권4호
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    • pp.22-31
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    • 2013
  • The aim of the present study was to compare measurement precisions of the Oswestry Back Pain Disability Questionnaire (ODQ) and a computer adaptive testing (CAT) method. The ODQ has been regarded as one of the most reliable condition-specific measure for back pain for decades. Cross-sectional study was carried out with two independent convenient samples from two out-patient rehabilitation clinics for back pain ($n_1=42$) and non-back pain group ($n_2=42$). Participants were asked to fill out the ODQ and CAT of International Classification of Functioning, Disability and Health-Activity Measure (ICF-AM). A series of Rasch analyses were performed to calculate person ability measures. The CAT measures had greater relative precision in discriminating the groups than did the ODQ measure in comparisons of the relative precision. The CAT measure appears to be more effective than did the ODQ measure in terms of measurement precision. By administering test items calibrated in a way, CAT measures using item response theory may promise a means with measurement precision as well as efficiency.

Vibration analysis of double-bonded micro sandwich cylindrical shells under multi-physical loadings

  • Yazdani, Raziye;Mohammadimehr, Mehdi;Zenkour, Ashraf M.
    • Steel and Composite Structures
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    • 제33권1호
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    • pp.93-109
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    • 2019
  • In the present study, vibration analysis of double bonded micro sandwich cylindrical shells with saturated porous core and carbon/boron nitride nanotubes (CNT/BNNT) reinforced composite face sheets under multi-physical loadings based on Cooper-Naghdi theory is investigated. The material properties of the micro structure are assumed to be temperature dependent, and each of the micro-tubes is placed on the Pasternak elastic foundations, and mechanical, moisture, thermal, electrical, and magnetic forces are effective on the structural behavior. The distributions of porous materials in three distributions such as non-linear non-symmetric, nonlinear-symmetric, and uniform are considered. The relationship including electro-magneto-hydro-thermo-mechanical loadings based on modified couple stress theory is obtained and moreover the governing equations of motion using the energy method and the Hamilton's principle are derived. Also, Navier's type solution is also used to solve the governing equations of motion. The effects of various parameters such as material length scale parameter, temperature change, various distributions of nanotube, volume fraction of nanotubes, porosity and Skempton coefficients, and geometric parameters on the natural frequency of double bonded micro sandwich cylindrical shells are investigated. Increasing the porosity and the Skempton coefficients of the core in micro sandwich cylindrical shell lead to increase the natural frequency of the structure. Cylindrical shells and porous materials in the industry of filters and separators, heat exchangers and coolers are widely used and are generally accepted today.