http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김재한,김정엽,정관수 忠南大學校 産業技術硏究所 1998 산업기술연구논문집 Vol.13 No.2
The purpose of this study is to develope deterministic optimal reservoir operation rules by integrating dynamic programming, regression analysis, and simulation. The objective function was designed to minimize system-loss function Z. The time dependent loss function is govemed by release R?? for each month. The general constraints for the given objective function are derived from mass balance, upper and lower bounds of the storages and releases. In this study, regression method was applied for inflow and storage to develop the operation rules. The method was successfully applied to the data from Daechung Dam. Differences between observed and predicted value may be caused by the differences in intake amounts.
요통 환자에 대한 물리치료방법의 적용 시간을 중심으로 한 기술적 연구
김선엽,채정병,권재확 대한정형물리치료학회 2001 대한정형도수물리치료학회지 Vol.7 No.1
Objective: The purpose of study was to compare physical therapy duration in relation tohealth care organization system in patients with low back pain. Subjects: Subjects of this study were 759 patients who are receiving physical therapy at 56 health care organization. Methods: Data were collected by questionnaire that had been completed by patients and physical therapist for two months. Physical therapy procedures consisted of modality application, manual therapy, active therapeutic exercise, and patient education. Physical therapy session duration was investigated for each physical therapy procedure. Data were analyzed in relation to the university hospital, hospital, and clinic. Results: The mean age of subjects was 42.84±15.46. There were no significant differences in age among three groups. The number of patients diagnosed with herniated disc were 244(32.15%) and with mechanical low back pain was 187(24.64%). the mean treatment duration per day was 53.22 minutes, and the longest treatment duration was 61.28 minutes at the university hospitals(p<0.001). The mean modality application duration was 42.17 minutes, and the longest application duration was 46.26 minutes at the university hospitals(p<0.001). The mean duration for manual therapy was 5.11 minutes, and the longest treatment duration was 5.97 minutes at clinics. The mean duration for active therapeutic exercise was 4.16 minutes. It was 7.60 minutes at the university hospitals, and 2.48 minutes at clinics. There was a significant difference in active therapeutic exercise duration between university hospitals and clinics(p<0.001). For modalities, hot packs(89.33%) and interferential current therapy(60.87%) were mostly applied. For manual therapy, Soft tissue mobilization(32.93%) and manipulation(14.10%) were mostly applied. In general, treatment application duration was longer at University hospital (p<0.05). For therapeutic exercise, exercise without equipment(18.84%) and muscle strengthening(16.73%) were mostly performed. The longest treatment duration for therapeutic exercise was 7.60 minutes at the university hospital(p<0.05). Conclusion: physical therapy session duration for low back pain was 53.22 minutes. Modality application constitutes 79%, manual therapy 10%, active therapeutic exercise 8% of total treatment duration. It is concluded that patients do not participate actively in treatment procedures.
김선엽,권재확 대한정형물리치료학회 2001 대한정형도수물리치료학회지 Vol.7 No.2
Dysfunction of the anterior and dorsal muscles of the trunk have been studied in relation to low back pain of many years. Many muscles of the trunk are capable of contributing to the stabilization and protection of the lumbar spine, recent evidence has suggested that transversus abdominis may be critically involved and has been the focus of rehabilitation. The delay in onset of contraction of trunk muscles associated with movement of the upper or lower limb in patients with low back pain indicates a significant deficit in the automatic motor command for control of disturbance to the spine. The function of transversus abdominis has been largely ignored in the evaluation of spinal stabilization and protection. The most essential stabilizing muscles for the lumbar column are the transversus abdominis and the multifidus., Sling exercise therapy(SET) concept consists of a system of diagnosis and treatment. The system of diagnosis involves testing the muscle's tolerance through progressive loading in open and close kinetic chains. The SET system contains elements such as relaxation, increasing the range of movement, traction, training the stabilizing musculature, sensorimotor exercises, training in open and close kinetic chains, dynamic training of the mobilizing musculature, cardiovaSc+ular exercises, group exercise, personal exercise at home. Sensorimotor training is an essential element of the SET concept. The emphasis is on closed kinetic chain exercises on an unstable surface, thereby achieving optimum stimulation of the sensorimotor apparatus.
권재확,조미주,박민철,김선엽 대한정형물리치료학회 2002 대한정형도수물리치료학회지 Vol.8 No.2
Cervical pain is a rapid increase that is owing to a flexion-extension whiplash injury, unappropriated posture, chronical repetition injury from abdominal position of head and neck, excessive repeating work, chronical deficiency of excercise. Because of that is bring about muscle unbalance, tightness of cervical extensor muscle, weakness of cervical deep flexor muscles, instability of cervical region and reduction of proprioceptive sensor. Recent the role of muscle is more emphasized for preservation of sine stabilization. And cognition of integrated muscular system, importance for the operation and relation is increased to maintain stability of the motor system and pertinent function. Therefore we are going to introduce the sling exercise and stabilization exercise method for advanced efficient of cervical and upper limb and for the muscle strengthening to importance cervical stabilization through neurological program as control the reaction of cervical stabilization. Sling exercise therapy(SET) concept consists of a system of diagnosis and treatment. The system of diagnosis involves testing the muscle's tolerance through progressive loading in open and close kinetic chains. The SET system contains elements such as relaxation, increasing the range of movement, traction, training the stabilizing musculature, sensory-motor exercises, training in open and close kinetic chains, dynamic training of the mobilizing musculature, cardiovascular exercise, group exercise, personal exercise at home Sensory-motor training is an essential element of the SET concept. The emphasis is on closed kinetic chain exercise on an unstable surface, there by achieving optimum stimulation of the sensory-motor apparatus.
( Jae-eun Kim ),( Ji-eun Cho ),( Kwang-sun Do ),( Seung-yeop Lim ),( Hee-joong Kim ),( Jong-eun Yim ) 대한물리의학회 2017 대한물리의학회지 Vol.12 No.3
PURPOSE: Flexibility and range of motion are very important factors in sports performance, rehabilitation, and musculoskeletal pain. The purpose of this study was to measure the effects of cupping therapy on flexibility, muscle activity, and pain threshold of hamstring muscle compared to passive stretching in healthy subjects. METHODS: Thirty healthy subjects were randomly assigned in a crossover design to cupping therapy and passive stretching. Subjects were tested to compare their effects according to the intervention such as Passive range of motion (PROM) (straight leg raising) and active range of motion (AROM). And algometer (pain) testing and MVC assessment using EMG were performed as dependent variables. RESULTS: The cupping therapy group and passive stretching group showed significant differences in all variables including PROM (p=.00, p=.00), AROM (p=.00, p=.03), Pain Threshold (p=.03, p=.08), Semitendinosus MVC (p=.01, p=.00), and Biceps femoris MVC (p=.01, p=.16). There were no significant differences between the two groups in all variables. CONCLUSION: These findings of this study suggested that cupping therapy has as much positive effect on flexibility, pain threshold, and muscle contraction as passive stretching. Also, it is more convenient and easier to work on patients than passive stretching. Therefore, cupping therapy should be considered as another option to treat range of motion, pain, and muscle activity in the clinical field.
Facile Fabrication of Stretchable Electrodes by Sedimentation of Ag Nanoparticles in PDMS Matrix
Kim, Jae-Yeop,Jang, Kwang-Suk Hindawi Limited 2018 Journal of nanomaterials Vol.2018 No.-
<P>This study reports a facile fabrication method for highly conductive stretchable electrodes composed of a conductive 0D nanomaterial filler and an elastomer matrix. The local volume fraction of the Ag nanoparticles at the composite surface could be significantly increased by the sedimentation of Ag nanoparticles in uncured polydimethylsiloxane (PDMS) fluid. The stretchable electrodes had a surface resistance of <TEX>$ \mathit{0.910}\pm \mathit{0.509}$</TEX> Ω/sq and were stretchable up to 100% of strain without the reduction of the electrical conductivity, demonstrating their potential as high-performance electrodes for applications in stretchable electronics.</P>
Kim, Hee Su,Lee, Tack Ho,Yeop, Jiwoo,Cho, Hye Won,Kim, Jae Won,Park, Song Yi,Park, Jong Baek,Kim, Jin Young,Hwang, Do-Hoon American Chemical Society 2018 The Journal of Physical Chemistry Part C Vol.122 No.29
<P>Semiconducting polymers consisting of (<I>E</I>)-1,2-di(thiophen-2-yl)ethene (TVT) derivatives and benzo[1,2-<I>b</I>:4,5-<I>b</I>′]dithiophene with conjugated thiophene side chains (BDTT) were designed and synthesized to investigate the effect of fluorine and cyano groups in the 3-position of the thiophene ring in TVT on the photovoltaic properties. The corresponding PBDTT-TVT, PBDTT-FTVT, and PBDTT-CNTVT copolymers containing TVT, difluoro TVT (FTVT), and dicyano TVT (CNTVT), respectively, demonstrated considerable variations in optical, electrochemical, morphological, and charge transporting properties. PBDTT-FTVT showed suitable frontier orbital energy levels, favorable face-on orientation, and a well-mixed and smooth morphology in the blends with 3,9-bis(2-methylene-(3-(1,1-dicyanomethylene)-indanone))-5,5,11,11-tetrakis(4-hexylphenyl)-dithieno[2,3-<I>d</I>:2′,3′-<I>d</I>′]-<I>s</I>-indaceno[1,2-<I>b</I>:5,6-<I>b</I>′]dithiophene (ITIC) and [6,6]-phenyl-C<SUB>71</SUB>-butyric acid methyl ester (PCBM). In contrast, PBDTT-CNTVT showed unfavorable frontier orbital energy levels and bimodal orientation in the thin-film state, which interrupted efficient charge transport in organic photovoltaic devices. The device fabricated using PBDTT-FTVT exhibited the highest power conversion efficiency (PCE) of up to 6.50% with ITIC and a slightly lower PCE of 6.35% with PCBM.</P> [FIG OMISSION]</BR>