• Journal of muscle and joint health
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• v.7 no.2
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• pp.227-240
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• 2000

The purpose of this article was to identify trend in Arthritis research and to provide ba an approach of Arthritis research. The results of analysis of 69 Arthritis articles public year of between 1970-1999 found that most articles(27.6%, n=19) were published since few(10.1%, n=7) were before 1994. Vast majority of articles(79.8%, n=55) were printed in The Journal of Rheumatology Health, and 79.8%(n=55) of those were quantitative research, 8.7%(n=6) were qualitative research, and 14%(n=1) was methodological research. 29.0%(n=20) of quantitative research were carried in experimental design and over half(50.8%, n=35) in nonexperimental design. Having concerned the types of treatment(or intervention) used in experimental study, the most common treatment was 'exercise' (45.0%, n=9), and other less common were 'self-help education(15.0%, n=3), home care(10.0%, n=2) supportive care(10.0%, n=2), flexibility exercise combined with local heat therapy(5.0%, n=1), relaxation training(5.0%, n=1). Of the types of exercise, aquatic exercise was 30.0%(n=6). The effect of exercise on outcome variable was found to be most strong among the other types of treatment. 18 articles of nonexperimental research were correlational research. From the analysis of correlational research, 29 concepts were identified, and the relationship between depression and other variable were strongly reported. In descriptive studies, most commonly physiological variables were examined in 5 articles(29.5%). Only one study(5.9%) explored patient's perception of the causal factors and those causality. In qualitative researches, two study were carried out by the means of grounded theory. Majority of those subjects were RA patients, and the largest number of sample were 23 and the smallest was 1 In two studies, patient's perceived causality of RA was identified as a research problems, and an experience of ADL, fatigue Phenomenon, an experience of having a total knee replacement with osteoarthritis were each found in one study. Methodological research was carried out to test validity and reliability of the RA Fatigue Scale.

• Journal of Korean Medicine Rehabilitation
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• v.23 no.4
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• pp.185-194
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• 2013

Objectives The aim of this study was to evaluate the efficacy and safety of micro current taping therapy (MTT) on patients with chronic low back pain (CLBP). Methods We included 50 participants who met the inclusion criteria and 5 participants dropped out during the sessions due to the following reasons: 3 participants were personal reasons, 1 participant was taking medication, 1 participant was fore arm fracture. We attached "I" shaped 40 cm, 2 tapes along the erector muscles of the spine starting from both iliac crest and another "I" shaped 30 cm, 1 tape on the painful site horizontally. This procedure was done 8 times and participants visited a total of 9 times including a final visit for evaluation. We measured visual analog scale (VAS), range of motion (ROM) and schober's test on every visit. Participants completed a questionnaire of oswestry disability index (ODI) and Beck's depression inventory (BDI) on the first and last visits. Results In VAS for pain intensity and bothersomeness, there were significant decreases after 1st, 6th treatments. In range of extension, there was significant increase after 3rd treatment at first. In range of flexion, there was significant increase after 2nd treatment at first. In range of left flexion, there was significant increase after 4th treatment at first. In range of right flexion, there was significant increase after 3rd treatment at first. in schober's test, there was significant increase after 2nd treatment at first. In VAS, ROM, schober's test, BDI, ODI, there were significant improvement after all treatments had done. Conclusions There was a significant effect of MTT on CLBP. And there was no adverse effect.

• Journal of Acupuncture Research
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• v.35 no.4
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• pp.193-199
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• 2018

Background: The purpose of this study was to investigate electric moxibustion on patients with back pain caused by road traffic accidents. Methods: This was a retrospective study (n = 112) comparing treatment with Korean medicine combined with electric moxibustion (n = 56), and Korean medicine alone (n = 56). Patient gender, age, Numeric Rating Scale (NRS), Oswestry Disability Index (ODI) and EuroQol-5 Dimension (EQ-5D) was recorded for each group at the time of hospital admission. Mean NRS measured weekly, mean ODI and EQ-5D scores were measured 2 weeks post-treatment, and evaluated by paired sample t test. using the Statistical Program for Social Science v. 25.0 for Windows. An independent, two-sample t test was used to test for a significant difference in the decrement of NRS, ODI and increment EQ-5D scores between groups. Results: NRS scores decreased in both groups after 1 week of treatment (electric moxibustion, from $5.13{\pm}0.79$ to $3.86{\pm}0.67$; Korean medicine alone, from $5.18{\pm}0.92$ to $4.30{\pm}0.94$; both p < 0.001). There was a significantly greater reduction in NRS score in the electric moxibustion group ($1.27{\pm}0.59$) than in the Korean medicine alone group ($0.88{\pm}0.61$; p = 0.001). After 2 weeks of treatment, EQ-5D scores increased significantly in the moxibustion group ($0.19{\pm}0.12$) compared with the Korean medicine alone group ($0.13{\pm}0.20$; p = 0.043). After 2 weeks of treatment, NRS and ODI scores decreased in both groups. EQ-5D increased in both groups. Conclusion: We suggest that electric moxibustion treatment may be effective for reducing early-stage back pain in patients with road traffic accident injuries.

• Journal of Korean Society of Environmental Engineers
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• v.29 no.2
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• pp.197-204
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• 2007

The reciprocal effects towards the enhanced biological phosphorus removal were performed for anaerobic, aerobic and anoxic phases. The batch experiments showed that the p-absorption in the anoxic phase was 50% lower than aerobic phase. The correlation coefficient between p-back-solution and p-absorption was found to be $R^2=0.557$ however, the coefficient b(b = 8.4049) was relatively higher than the other researchers results. The increase and/or acceptance of the $K^+-,\;Mg^{2+}-$ and $NH_4-N$-concentration was proportional to those of the $PO_4-P$-concentration in the batch test. The relationship between $K^+-,\;Mg^{2+}$ and $PO_4-P$ was determined. The average value of this relation-ship agreed with 0.2 mol $K^+Ion$ / mol $PO_4-P$ ion and 0.21 mol $Mg^{2+}Ion$ / moi $PO_4-P$ ion in the anaerobic phase. The absorbed ratio of $K^+$ to $Mg^{2+}$ over $PO_4-P$ was found to be 1 : 5.

• PNF and Movement
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• v.19 no.3
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• pp.331-340
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• 2021

Purpose: The purpose of this study was to investigate the differences in body composition, upper and lower limb muscle strength, and functional physical ability in urban-dwelling elderly women with or without obesity. Methods: All study participants were assigned to the normal weight group (n=8, BMI<25) and the obesity group (n=7, BMI>25) based on their obesity rate. Anthropometric measurement was conducted and body composition was measured. For the upper and lower limb strength, grip strength and maximal isometric knee extension and flexion were evaluated by a dynamometer. The senior fitness test was performed to measure functional ability. Data analysis was conducted by the independent t-test and the alpha level was set at 0.05. Results: The waist, hips, and thighs of obese elderly women were thicker than those of normal-weight elderly women. This physical difference resulted from body fat mass, not muscle mass. Despite a similar level of limb muscle mass between the two groups, the upper limb grip strength was higher (24.00% for left, 19.95% for right) in the normal-weight women than the obese women (p<0.05), but otherwise there was no difference in maximal knee flexion or extension isometric strength. Functional physical ability showed no difference in a 30-second chair sit and stand test and a six-minute walk test, but a 30-second arm-curl (11.00% for left, 14.81% for right), back stretch (8.54cm for left, 8.99cm for right), chair sit and reach (9.22cm for left, 6.24cm for right), and 2.44 meter round trip walk (0.62 sec, 9.39%) were faster in performance for normal-weight elderly women than obese elderly women (p<0.05). Conclusion: Taken together, despite similar levels of upper and lower extremity muscle mass, normal-weight elderly women showed higher performance in upper limb strength, flexibility, and agility than obese elderly women, but there was no difference in lower extremity functional muscle strength and cardiopulmonary endurance.

• Physical Therapy Rehabilitation Science
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• v.10 no.2
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• pp.235-243
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• 2021

Objective: This study aimed to investigate the short-term effects of flexion-distraction spinal manipulation on intervertebral height, pain, spine mobility in patients with lumbar degenerative disc disease. Design: Randomized controlled trial with a pretest-posttest control group design Methods: A total of 96 participants with degenerative disc disease participated in the study and were randomly divided into two groups. Both groups received intervention for 3-5 minutes a day. The experimental group (n=48) underwent flexion-distraction spinal manipulation for 3-5 minutes, and the control group (n=48) was maintained in the same position as the experimental group for 5 minutes without any intervention. The intervertebral height was measured by computed tomography, pain was assessed using visual analog scale, and the spine in flexion mobility was measured using the finger-to-floor distance test and passive straight leg raise test. Pre-test and post-test measurements were obtained. Results: The experimental group showed significant improvement in intervertebral height, degree of pain, and spinal mobility (p<0.05). The intervertebral height increased from 6.32±1.90 to 6.93±1.85 mm (p<0.05), lower back pain decreased from 69.17±13.35 mm to 48.48±12.20 mm (p<0.05), lumbar spine mobility changed from 17.37±4.49 to 12.69±4.34 cm (p<0.05), and passive straight leg raise test range increased from 46.94±13.05° to 56.01±12.20° (p<0.05). Conclusions: This study suggests that flexion-distraction spinal manipulation could be an effective treatment for decreasing pain and improving function in patients with degenerative disc disease.

• Proceedings of the Korean Radioactive Waste Society Conference
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• 2004.02a
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• pp.245-256
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• 2004

The extraction of three kinds of amido podands, N,N,N'N'-tetrabutyl-3-oxa-pentanedi- amide (TBDGA), N,N,N'N'-tetra-isobutyl-3-oxa-pentanediamide(TiBDGA) and N,N,N'N'-tetra- butyl-3,6-dioxa-oct-anediam- ide(TBDOODA) on U(VI),Pu(IV), Am(III), Eu(III) and other metal ions is studied in nitric acid solutions. 40%octanol-kerosene is chosen as diluents to eliminate third phase and emulsion. TBDGA and TiBDGA show extraction selectivity to An(III) and Ln(III) much higher than to U(VI) and Pu(IV). Fe, Ru and Mo is poorly extracted by the three kinds of amid podands in 2~3mol/L $HNO_3$ solutions. Aiming to eliminate interface crude when using simulated HLLW solution in the system of 0.2mol/L TBDGA/Octanol＋kerosene, acetohydroxyamic acid was adapted. Distribution ratio of zirconium was decreased when adding acetohydroxyamic acid in aqueous solution, and interface crude disappeared as mixing extractant with HLLW. The counter-current extraction test is carried out in a set of miniature mixer-settler, with 0.2mol/L TBDGA/ 40% octanol-kerosene as extractant to separate U(VI), Pu(IV), Am(III) and Eu(III) from simulated high level liquid waste(HLLW) solution. In battery A, lanthanides and actinides are coextracted into organic phase with the recovery of 99.98% for U(Ⅵ), >99.99% for Pu(IV), and >99.99% for Am(III) and Eu(III) respectively. In battery R1, 99.99% U, 86.2% Pu and a part of Am or Eu are stripped into aqueous phase by 0.2mol/L acetohydroxyamic acid (AHA) in 0.01mol/L $HNO_3$ solution. In battery $R_2$, Am, Eu and remained Pu are completely back-extracted by 0.2mol/L AHA. This separation process contains no salt reagent, and it is not necessary to dilute HLLW feed.

• Journal of the Korean Geotechnical Society
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• v.18 no.5
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• pp.37-42
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• 2002

Artificial neural networks are efficient computing techniques that are widely used to solve complex problems in many fields. In this paper a liquefaction potential was estimated by using a back propagation neural network model applicated to cyclic triaxial test data, soil parameters and site investigation data. Training and testing of the network were based on a database of 43 cyclic triaxial test data from 00 sites. The neural networks are trained by modifying the weights of the neurons in response to the errors between the actual output values and the target output value. Training was done iteratively until the average sum squared errors over all the training patterns were minimized. This generally occurred after about 15,000 cycles of training. The accuracy from 72% to 98% was shown for the model equipped with two hidden layers and ten input variables. Important effective input variables have been identified as the NOC,$D_10$ and (N$_1$)$_60$. The study showed that the neural network model predicted a CSR(Cyclic shear stress Ratio) of silty-sand reasonably well. Analyzed results indicate that the neural-network model is more reliable than simplified method using N value of SPT.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06b
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• pp.171-174
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• 2011

최근 안드로이드 소프트웨어의 숫자가 날로 증가하고 있는 동시에 사용자들의 요구 수준도 함께 높아지고 있다. 이에 따라 소프트웨어의 품질을 높이기 위한 테스트 과정의 중요성이 두드러지고 있으며 안드로이드 소프트웨어는 GUI를 기반으로 하고 있기 때문에 현존하는 GUI테스트 기법들을 이에 적용시키는 다양한 연구가 진행되고 있다. GUI 테스트 기법 중 Record-Playback 기법은 사용자의 사용 흐름을 기록 후 재현하는 방식으로 테스트를 반 자동화함으로 테스트 과정에 소모되는 시간과 자원을 감소시키기 때문에 많은 분야에서 활용되고 있다. 하지만, 이 기법은 테스트 케이스 생성 시 테스터의 비효율적인 노동을 증가시키는 문제점이 발생하고 있으며, 또한 안드로이드 환경에 적용시키기 위해서 그 특성에 대한 고려가 필요하다. 이에 본 논문에서는 안드로이드 환경에 적합한 RPB 기반 테스트 케이스 생성 및 활용 방안에 대해 제안한다. 이는 소프트웨어 테스트에 소요되는 시간과 자원을 감소시켜 소프트웨어의 품질 향상에 도움이 된다.

• Journal of Sensor Science and Technology
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• v.23 no.5
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• pp.326-331
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• 2014

In this study, a MEMS microphone that uses $Si_3N_4$ as the vibration membrane was produced for application as an auditory device using a sound visualization technique (sound visualization) for the hearing impaired. Two sheets of 6-inch silicon wafer were each fabricated into a vibration membrane and back plate, after which, wafer bonding was performed. A certain amount of charge was created between the bonded vibration membrane and the back plate electrodes, and a MEMS microphone that functioned through the capacitive method that uses change in such charge was fabricated. In order to evaluate the characteristics of the prepared MEMS microphone, the frequency flatness, frequency response, properties of phase between samples, and directivity according to the direction of sound source were analyzed. The MEMS microphone showed excellent flatness per frequency in the audio frequency (100 Hz-10 kHz) and a high response of at least -42 dB (sound pressure level). Further, a stable differential phase between the samples of within -3 dB was observed between 100 Hz-6 kHz. In particular, excellent omnidirectional properties were demonstrated in the frequency range of 125 Hz-4 kHz.