• Journal of Korean Physical Therapy Science
• /
• v.19 no.2
• /
• pp.35-42
• /
• 2012

Background : This study was conducted to know the effect of resistance exercise using thera-band in parallel with conservative therapy in patients with frozen shoulder. Methods : We analyze subjective pain scale, ROM and shoulder functional scale 24 patients diagnosed with adhesive capsulitis were included for study. Among them, 12 patients(experiment group) were managed by resistance exercise as well as conservative physical therapy, another 12 patients(control group) were only treated by conservative therapy alone. All the patients were treated three times a week for 4 weeks, and after, and after each treatment subjective pain scale, ROM, shoulder functional score(SFI) were measured. Results : The VAS were significant reduced between experimental group and control group according to pre-treatment and post-treatment. In experimental group, the ROM and SFI has increased than control group according to pre-treatment and post-treatment. Conclusion : According to the results, we concluded that both conservative therapy and self resistance exercise using thera-band technique are more effective for increasing ROM especially flexion, abduction, internal rotation and SFI than conservative therapy alone.

• Journal of Korean Academy of Fundamentals of Nursing
• /
• v.19 no.4
• /
• pp.434-443
• /
• 2012

Purpose: This study was conducted to investigate sleep patterns in nursing students as measured by an automated wireless sleep tracker and self-reported sleep scales. Methods: Data were collected from October, 2011 to May, 2012. ZQ (a symbolic number that measures the quality and quantity of sleep) was calculated from the automated wireless sleep tracker. Pittsburgh Sleep Quality Index-Korean version, Sleep scale A, and sleep satisfaction were used as self-report sleep scales. Female nursing college students (n=37) were recruited by convenience sampling. Before going to bed, they were asked to put on a head-band type sleeping sensor and to move it the next morning. Every student slept 2~4 nights with the sleep tracker. Data were collected for 86 (91.4%) of 94 nights' sleep. The students were also requested to fill in the PSQI-K, sleep scale A, and sleep satisfaction. Results: The only statistically significant correlation was between ZQ and sleep satisfaction (r=.869, p=.026). The biggest obstacle in using this device was putting on the head-band type sensor. Conclusion: Validity of the wireless sleep tracker was verified in part. The usefulness of this device in nursing research and practice was identified. Further evaluation need to be conducted with various populations.

• Journal of Life Science
• /
• v.9 no.2
• /
• pp.62-66
• /
• 1999

To overexpress E. coli ADA in host strain E. coli M15, the expression plasmid pQEADD was constructed. To analyze the expression characteristics of ADA, a time course of the expression was first examined. The protein was not detected in no inducted in no induction samples. After the addition of IPTG, a band corresponding to the expected size of ADA was appeared. Its molecular weight was about 36,000 dalton. Maximum expression level was revealed when the cell cultured for 3∼4hrs after induction. This result indicated that the efficient expression of add can be achieved by induction at early logarithmic phase. The effect of different IPTG concentration on the degree of ADA expression was investigated. The expression levels of add were not largely affected by IPTG concentration. Location of overexpression ADA was checked out. A protein band corresponding to the ADA was seen in only crude extract B(insoluble protein). This result suggests that ADA is in E. coli M15. The molecular weight of ADA estimated by SDS-PAGE was approximately 36,000 Da.

• Bulletin of the Korean Chemical Society
• /
• v.32 no.7
• /
• pp.2207-2211
• /
• 2011

Colloidal cadmium telluride (CdTe) quantum dots (QDs) and their nanoparticles have been synthesized by one pot sonochemical reactions under multibubble sonoluminescence (MBSL) conditions, which are quite mild and facile compared to other typical high temperature solution-based methods. For a typical reaction, $CdCl_2$ and tellurium powder with hexadecylamine and trioctylphosphine/trioctylphosphineoxide (TOP/TOPO) as a dispersant were sonicated in toluene solvent at 20 KHz and a power of 220W for 5-40 min at 60 $^{\circ}C$. The sizes of CdTe particles, in a very wide size range from 2 nm-30 ${\mu}m$, were controllable by varying the sonicating and thermal heating conditions. The prepared CdTe QDs show different colors from pale yellow to dark brown and corresponding photoluminescence properties due mainly to the quantum confinement effect. The CdTe nanoparticles of about 20 nm in average were found to have band gap of 1.53 eV, which is the most optimally matched band gap to solar spectrum.

• Korean Journal of Plant Resources
• /
• v.10 no.3
• /
• pp.235-240
• /
• 1997

To study the effects of metal ions on the activity of anti-oxidase enzymes, the activity of superoxide dismutase (SOD) and peroxidase (POD) and isozyme patterns of Brassica juncea have been studied after treating with CD, Cu, Zn, and Al. The activity of SOD after treating with metal ions was higher than that of untreated control. SOD activity in leaves increased by treatment of 50 ppm of Zn and 500 ppm of Al. POD in stems gave highest activity after treating with 500 ppm of Cu. When the activity was compared by plant parts, lowest POD activity was observed in leaves in which protein content was higher than other tissues. When the activity was expressed as percentage of control, SOD activity was increased after treating with metal ions. SOD activity in leaves and roots of metal treated plant was significantly increased under the metal ions stress conditions. In the roots of 50 ppm of Zn treated plant, SOD activity was extremly high. POD activity was inhibited with Cd and Zn treatment in all parts of the plant. However, in leaves and stems, there was marked increase in activity after treating with Cu. The patterns of SOD isozyme after metal treatment show that two bands were stained in all metal ion treated and that no new band appeared. POD isozyme band intensity resulting from the treatment of metal ions was in order of roots > stems > leaves, but there was no significant difference.

• MALSORI
• /
• no.63
• /
• pp.125-137
• /
• 2007

Recently, many techniques have been proposed to improve the noise robustness for speaker verification. In this paper, we consider the feature recombination technique in multi-band approach. In the conventional feature recombination for speaker verification, to compute the likelihoods of speaker models or universal background model, whole feature components are used. This computation method is not effective in a view point of multi-band approach. To deal with non-effectiveness of the conventional feature recombination technique, we introduce a subband likelihood computation, and propose a modified feature recombination using subband likelihoods. In decision step of speaker verification system in noise environments, a few very low likelihood scores of a speaker model or universal background model cause speaker verification system to make wrong decision. To overcome this problem, a reliable feature selection method is proposed. The low likelihood scores of unreliable feature are substituted by likelihood scores of the adaptive noise model. In here, this adaptive noise model is estimated by maximum a posteriori adaptation technique using noise features directly obtained from noisy test speech. The proposed method using subband-based reliable feature selection obtains better performance than conventional feature recombination system. The error reduction rate is more than 31 % compared with the feature recombination-based speaker verification system.

• Elastomers and Composites
• /
• v.33 no.1
• /
• pp.27-36
• /
• 1998

The surface of wiper blade(W/B) rubber was chlorinated by chemical treatment method using the hydrochloric acid(HCI) and sodium hypochlorite(NaOCl). From the results of contact angle measurement, friction coefficient measurement, and ATR-IR spectra, the surface characteristics of chlorinated W/B rubber with time of chlorination were studied. Contact angles for W/B rubber with increasing time of chlorination and chlorine concentration were measured for the water and ethylene glycol. From the results, contact angle fell rapidly with increasing time of chlorination and chlorine concentration, reaching a constant value after about 10min. And the wettability of W/B rubber surface by means of chlorination has been improved. For an unchlorinated W/B rubber, the friction coefficient with time of chlorination decreased from 1.27 to 0.20~0.23 on full chlorination. As the results it was considered that abrasion resistance of W/B rubber surface has been also improved. The values of pH and $Cl^-$ ion concentration in a chlorine treatment solution decreased as the extent of chlorination of W/B rubber surface increased. From the results of ATR-IR spectra, it was observed that C=C double band of W/B rubber surface transformed into C-Cl band, but quantitative determination of the extent of chlorination was not feasible because of the complexity of chlorination reactions.

• Journal of electromagnetic engineering and science
• /
• v.6 no.1
• /
• pp.36-46
• /
• 2006

In this paper, we present a two-element circularly-polarized antenna array for UHF-band RFID reader applications. The antenna element in the array is a comer-truncated rectangular patch placed on a thick plastic-foam dielectric. The patch is fed on one of its edges by a microstrip line printed on a separate thin substrate. The array antenna is fed by a microstrip power divider. Parametric studies on the patch are carried out, from which an optimum design of a single antenna element is derived. The element spacing and the feed network of the array are investigated. A commercial electromagnetic software is employed in the analysis and design of the antenna. The designed array is fabricated and tested. Measurements show good performance characteristics of the fabricated antenna: a 11.2-dBi gain, a reflection coefficient of - 14 dB, an axial ratio less than 3 dB over 3-dB beamwidths of 40 and 60 degrees on two principal planes.

• Proceedings of the Korean Society of Broadcast Engineers Conference
• /
• 2015.07a
• /
• pp.125-128
• /
• 2015

본 연구는 실감미디어를 활용한 무대기술 적용을 위해 UWB 센서를 이용한 동적 피사체 추적 시스템을 제안하고자 한다. 최근 공연산업에서는 실감미디어를 활용하여 관객의 오감을 자극하여 극도의 몰입감을 제공하는 시도가 지속해서 증가하고 있다. 특히 배우와 무대장치의 움직임을 실시간으로 반영하여 디지털 미디어 연출 요소로 활용한다면 관객의 실재감과 몰입감을 효과적으로 증대시킬 수 있다. 하지만 대부분 위치추적 솔루션은 제조, 물류, 유비쿼터스 자동화 시스템으로 연구가 활발히 진행되고 있으며, 공연 무대기술과 관련하여 위치추적 솔루션 연구는 미진한 실정이다. 따라서 본 논문에서는 고속의 근거리 무선 통신망을 제공할 수 있는 해결책으로 최근 주목받고 있는 Ultra Wide Band 무선 센서를 사용하여 무대 공연기술 활용에 적합한 동적 피사체 위치추적 시스템을 개발하고, 그 성능을 실험하여 위치정보의 정확도를 분석하고자 한다.

• Journal of Satellite, Information and Communications
• /
• v.5 no.1
• /
• pp.69-74
• /
• 2010

As a part of development process of the COMS, an acoustic vibration test was performed in order to verify that the COMS is safe from the acoustic loads coming from the Ariane-5ECA launch vehicle when it is launched. In this paper, the acoustic vibration test preparation which was performed during the development of the COMS is explained, and through the evaluation of the test results, it was verified whether the COMS is safe from the acoustic load that the COMS will experience during the launch. Through detail evaluation of the acoustic loads on the solar array, Ka band communication payload antenna and feed, GOCI(Geo-Stationary Ocean Color Imager), MI(Meteorological Imager), it was confirmed that the COMS is safe from the acoustic loads from launch vehicle.