• 한국지반공학회논문집
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• 제21권5호
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• pp.153-161
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• 2005

시공 시 손상 및 크리프 변형의 복합효과가 지오그리드의 장기설계인장강도에 미치는 영향을 평가하기 위하여, 세 종류의 지오그리드를 대상으로 일련의 현장 내시공성시험 및 크리프시험을 수행하였다. 연구결과, 지오그리드의 시공시 손상 및 크리프 변형 특성은 지오그리드의 재질 및 제조방법에 크게 영향을 받으며, 시공 중 지오그리드의 인장강도감소가 클수록, 시공 시 손상과 크리프 변형의 복합효과가 미치는 영향이 더 큰 것으로 나타났다. 또한 지오그리드의 인장강도 감소계수를 영향인자별로 각각 산정하여 장기설계인장강도를 평가하도록 되어 있는 현행 설계법은, 지오그리드의 시공 시 손상과 크리프 변형의 복합효과를 고려하여 강도감소계수를 산정하는 방법에 비해 지오그리드의 강도감소계수를 안전측으로 산정하는 것으로 평가되었다.

• 대한소아치과학회지
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• 제24권2호
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• pp.405-421
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• 1997

The main purpose of this study was to evaluate the acid resistance and antimicrobial effect of fluoride-laser combined application. Recently extracted third molars were used. $5{\times}3mm$ of the buccal and lingual specimens were exposed and incipient artificial carious lesions were formed by keeping them in the artificial cariogenic solution for 5 days. They were divided into five groups and treated with fluoride and laser according to the predetermined regimen. The acid resistance was compared between groups by chemical quantitative analysis of the calcium and phosphorous released into the test solution after single or combined application of fluoride and laser. The antimicrobial effect of each group was analyzed by counting the number of colony forming units after microbial incubation. The results from the present study can be summarized as follows; 1. Experimental groups showed lower values in calcium and phosphorous contents as well as in $CFU/m{\ell}$(colony forming units) than control group. Combined application groups showed lower values than single application groups. 2. Acid resistance and antimicrobial effect by fluoride and laser treatment were confirmed in this study. 3. Based upon the above-mentioned results of this study, it can be assumed that the use of laser-fluoride combined application may provide the child and adolescent patient population with antimicrobial effect as well as acid resistance. Further studies using various materials and experimental conditions are being encouraged.

• Annals of Rehabilitation Medicine
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• 제42권6호
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• pp.788-797
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• 2018

Objective To investigate the effect of upper limb rehabilitation combining robot with low-frequency repetitive transcranial magnetic stimulation (rTMS) on unilateral spatial neglect in stroke patients. Methods Patients who had hemispatial neglect after right hemisphere stroke were randomly divided into rTMS only group, robot only group, and combined group. All groups received conventional neglect therapy and additional treatment for each group. rTMS group received rTMS therapy. Robot group received robot therapy, while combined group received both therapies. The effect of therapy was assessed with Motor-Free Visual Perception Test-3 (MVPT-3), line bisection test, star cancellation test, Catherine Bergego Scale (CBS), Mini-Mental State Examination (MMSE), and the Korean version of Modified Barthel Index (K-MBI). These measurements were evaluated before and after treatment. Results For each group, 10 patients were recruited. There were no significant differences in baseline characteristics or initial values among the three groups. Two weeks after the therapy, all groups showed significant improvement in MVPT-3, line bisection test, star cancellation test, CBS, MMSE, and K-MBI. However, changes in measurements showed no significant differences among groups. Conclusion Treatment effect of the combined therapy of robotic therapy and low-frequency rTMS therapy for hemispatial neglect was not statistically different from that of each single treatment. Results of this study did not prove the superiority of any of the three treatments. Further study with large number of patients is needed to evaluate the superiority of these treatments.

• 한국방재학회 논문집
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• 제7권4호
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• pp.107-113
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• 2007

The Kuem-River, one of the largest rivers in Korea, is the primary water source for more than 4 million people in Kongju city and surrounding area. To study the effect of stormwater runoff to CSOs, twelve monitoring sites were selected in two large cities (City of Kongju and City of Buyeo) near the Kuem-River. Monitoring was reformed by collecting grab samples, measuring flow rates during dry and wet seasons during over two rainy seasons. Generally the flow rate of wastewater in combined sewers was rapidly decreased after 23:00 P.M. and gradually increased from 06:30 A.M. in all sites during the dry season. The concentrations of pollutant increase approximately 5 to 7 fold for TSS and 1.5 to 2.5 fold for BOD during the rainy season. Monitoring and statistical analysis show that the groundwater contributes on sewage volume increase (average 25-45% more) during dry periods and the stormwater runoff contributes approximately 51-72% increase during rainy periods. Generally the concentrations of combined sewage were more polluted during the first flush period than after the first flush during a storm event.

• 대한정형도수물리치료학회지
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• 제18권2호
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• pp.67-75
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• 2012

Background: Hemiplegic patients have the problems of the balance and weight shifting to the affected leg in walking. The aim of this study was to investigate the effect of unilateral stepping exercise combined with auditory feedback on balance and walking ability of the hemiplegic patients. Methods: Thirty hemiplegic patients were allocated in study group (n=15) or control group (n=15). General exercise and weight supporting exercise were conducted for the control group, and general exercises and unilateral stepping exercise combined with auditory feedback were conducted for the study group. Exercise were conducted three times a week for six weeks. Balance ability was measured by Berg Balance Scale (BBS), postural assessment scale for stroke (PASS), and performance-oriented mobility assessment (POMA). Walking ability was measured by time up and go test (TUG), 10m walk test (10mWT), and six minutes walk test (6MWT). Results: Balance and walking ability were significant increased in both group (p<.05). Balance and walking ability of the study group were more increased than that of the control group (p<.05). Conclusions: Unilateral stepping exercise combined with auditory feedback is more effective than weight supporting exercise to increase on balance and walking ability for the hemiplegic patients.

• 대한물리의학회지
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• 제13권2호
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• pp.157-165
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• 2018

PURPOSE: The purpose of this study was carried out to investigate the effect of plyometric training combined with core strength training on the balance and agility of adolescent soccer players. METHODS: A total of 36 subjects participated in this study. Subjects were randomly divided 3 groups and assigned PG (plyometric training group), CSG (core strength training group) and PCG (plyometric training combined with core strength training group). Each group was assigned to 12. Intervention was performed three times a week for 4 weeks. The training was performed for 60 minutes a day. Subjects were warmed up for 10 minutes, and performed main exercise for 40 minutes. Finally, subjects performed cool-down exercise including stretching for 10 minutes. A Statistical analysis was performed the paired t-test for the comparison pre and post intervention. A comparison among the groups was using one-way ANOVA, and the LSD was used for the post-test. RESULTS: The balance and agility were statistically significant differences in all group (p<.05). There was no significant difference in the balance factors between the three groups, but there was a significant difference in the agility factor (p<.05). CONCLUSION: Plyometric training and plyometric training combined with core strength training were effective for the balance and agility of adolescent soccer players.

• 한국의류산업학회지
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• 제8권3호
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• pp.363-369
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• 2006

In this the study, Lyocell fabrics for blanket were developed to get high value added goods for elder and Infant. Therefore, the purpose of the study was determine the effect of twist per inch on the physical properties of developed fabrics, including compression property and abrasion resistance on the process for making Lyocell combined yarns. For comparison, commonly used cotton blanket was used. The results were as the follows: 1) Dimensional changes of Lyocell fabrics was in -3% which value was pretty stable, and antistatic property was very good with 10V of electric propensity voltage which means there was no static electricity at all. Pilling property of Lyocell fabrics showed 3 grade which was good and air permeability and moisture vapor transmission rate of Lyocell fabrics were higher than those of cotton fabric and keeping warmth rate of Lyocell fabrics was about 50% which means it very warms. 2) Twist per inch of Lyocell combined yarns increased with tensile strength and elongation of Lyocell fabrics. 3) Twist per inch of Lyocell combined yarns increased with decreasing thickness reduction rate and therefore, compression property of those was pretty good. Specially, compression property of Lyocell fabrics made with yarns of 3.9TPI was better than those of cotton fabric. 4) Twist per inch of Lyocell combined yarns increased with abrasion resistance of Lyocell fabrics.

• 척추신경추나의학회지
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• 제4권1호
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• pp.19-29
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• 2009

Objectives: The purpose of this study is to evaluate the therapeutic effect of acupuncture treatment of acute ankle sprain combined with positional release therapy. Methods: A prospective randomized single blind study between positional release group and knee flexed supine position group was conducted. Patients with ankle sprain within 48 hours were evaluated by Ankle injury grade chart(AIGC). In group A, positional release therapy was combined with acupuncture, whereas in group B, acupuncture was conducted in knee flexed supine position. The treatment was planned for a duration of 1 week, 3times a week. In AIGC scores, VAS, weight bearing time and weight bearing time in blind were followed up and compared. Results and Conclusion: The VAS score decreased in both group. Weight bearing time increased in group B, weight bearing time in blind increased in group A. Comparing the therapeutic effect of each group, group A had significant effectiveness in weight bearing time in blind. So we may conclude that Acupuncture treatment combined with positional release therapy is effective and recommandable at early stage of ankle sprain.

• 한국식품과학회지
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• 제7권3호
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• pp.154-158
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• 1975

Mycotoxin 생성균(生成菌)인 Aspergillus flavus 와 Penicillium islandicum 분생포자(分生胞子)의 생존(生存)에 미치는 방사선과 가열 또는 약품의 병용(倂用)처리효과를 실험하여 다음과 같은 결과를 얻었다. 감마선과 가열($50^{\circ}C$ 또는 $55^{\circ}C$에서 10분 처리)의 병용처리는 두 곰팡이에서 현저한 상승효과(相乘效果)를 보여 $D_{10}$값과 유도선량(誘導線量)이 크게 감소하였으나 방사선과 약품(sorbic acid)의 병용처리는 아무런 상승효과도 보이지 아니하였다. Asp. flavus 는 Pen. islandicum 에 비하여 가열 및 sorbic acid 에 대한 저항성이 더 컸다.

• 한국운동역학회지
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• 제33권2호
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• pp.52-61
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• 2023

Objective: This study aimed to investigate the effect of a combined functional intervention program on the pain-related questionnaire, the erector spinae contractile properties, and trunk extensor strength of prime-aged females with non-specific chronic low back pain. Method: 16 (female: 16) prime-aged subjects (age: 60.88 ± 6.09 years, height: 158.16 ± 5.58 cm, weight: 59.05 ± 9.44 kg) participated in this study. Results: Except for Tampa Scale of Kinesiophobia all pain-related questionnaires revealed a significant decrease after the intervention program (p<.001). Tensiomyography of the erector spinae revealed a significant post-intervention program increase in the maximum radial displacement (p<.05) and velocity of contraction (p<.05), however, there wasn't a significant post-intervention program change in the contraction time. Additionally, Trunk extensor strength showed a significant increase post-intervention program (p<.001). Conclusion: Our results indicated that the combined functional intervention program positively changed pain-related questionnaires and reduced erector spinae muscle stiffness, increasing the velocity of erector spinae contraction. Additionally, improved the trunk extensor strength.