• 수산해양기술연구
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• 제56권3호
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• pp.202-212
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• 2020

In order to replace sardine baits for octopus pot, an efficacy experiment to lure with alternative bait (fermented skate or chicken skin in artificial crab or northern clam) pots and sardine pot were conducted in a circular water tank. The soaking time of the sardine bait was divided into two categories: six days or less and seven days or more. The behavioral response of octopus to the artificial bait pots and sardine pot were investigated. In the comparison of the luring effects between pots with fermented skate inside artificial crab or northern clam and sardine pot, the pot with artificial crab + fermented skate had better results than the other pots in the section distribution (31.6%) and the number of times the pot was entered into (20.0%) (p > 0.05). In the comparison of the luring effects between pots with chicken skin inside artificial crab or northern clam and sardine pot, the pot with northern clam + chicken skin had better results than the other pots in the section distribution (22.6%) and number of times the pot was entered into (55.6%) (p < 0.05). The results were also better compared to those of pot with artificial crab + fermented skate. From these results, it seems that in the luring effect aspect, sardine bait can be replaced with artificial bait consisting of chicken skin inside northern clam.

• Annals of Clinical Neurophysiology
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• 제21권1호
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• pp.30-35
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• 2019

Background: Postural tachycardia syndrome (POTS) refers to the presence of orthostatic intolerance symptoms associated with a heart rate increment of greater than 30 beats/min, usually up to 120 beats/min, on head-up tilt test. Symptoms related to POTS are usually light-headedness, palpitations and tremor, but syncope can also occur. The pathophysiology of POTS is heterogeneous and its prognosis is uncertain. Methods: We prospectively evaluated patients who met the criteria for POTS, at baseline and follow-up, using composite autonomic symptom scores and autonomic tests to assess the autonomic function. We compared the clinical and autonomic test results between baseline and follow-up. Results: Sixty-eight patients met the inclusion criteria for POTS and forty-five patients were ultimately followed up for at least 1 year after baseline. The patients were predominantly young females (84%), with a mean age of 21 years. Most patients showed improved orthostatic symptoms and more than a quarter of patients had no longer met the criteria for POTS at follow-up. Conclusions: Most patients had a benign outcome in that they could resume their daily activities without great limitations. Our results demonstrated a relatively favorable prognosis in most patients with POTS.

• 한국수산과학회지
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• 제20권2호
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• pp.95-105
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• 1987

어획성능이 우수한 튜브통발의 적정규격을 규명하기 위하여 규격이 다른 실험용 튜브통발을 여러 가지로 제작하여 수조실험과 해상실험을 실시하였다. 수조실험에서는 튜브, 깔때기 및 혀그물의 적정규격을 규명하였고, 해상실험에서는 수조실험에서 규명한 개량형 튜브통발과 재래식 플라그틱통발과의 어획성능을 비교 검토하였다. 본 연구의 결과를 요약하면 다음과 같다. 1. 붕장어는 통발침지 15분이내에 전체입망중 $90\%$이상이 입망하였다. 2. 개량형 튜브통발과 재래식 플라스틱통발의 구조적 차이점은 구멍이 없는 튜브의 양단에 입구가 있으며 깔때기의 끝에 양쪽으로 봉합선을 넣어 납작하게 한 2중혀그물을 부착하였고 통발의 중앙부에 그물로 만든 이료주머니를 고정시킨 점으로 압축된다. 3. 개양형 튜브통발의 적정규격은 (1) 튜브 : 직경 $12\~13\times$길이 80cm, 2) 깔때기 : 깊이 $5\times$안쪽링의 직경 6cm, (3) 혀그물 : 길이 10cm 이다. 4. 개량형 튜브통발의 어획성능이 재래식플라스틱 통발보다 약 2.3배 우수하였다.

• The Journal of Korean Physical Therapy
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• 제25권1호
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• pp.1-9
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• 2013

Purpose: This study sought to identify the utilization and confidence in assistive technology (AT) for pediatric physical therapists (PPTs) and pediatric occupational therapists (POTs) for the purpose of improving the utilization of AT in clinics. Methods: The subjects of this study were 167 therapists (98 PPTs and 69 POTs) who work at general hospitals, welfare centers, facilities for the disabled, and special education schools in Seoul and Gyeonggi province. The frequency analysis and chi-squared test were used. Results: This study found that both PPTs and POTs recognize that AT benefits infants with disabilities; however, they show low confidence in using AT. Applications of AT are concentrated on wheelchairs for mobility and assistance with seating position, with orthotics/prosthetics for both purposes. POTs were found to use a wider variety of AT devices. While both PPTs and POTs frequently select/recommend devices, both groups are less involved with delivery methods, manufacture of devices, and education on AT use. Conclusion: These findings show the actual conditions of utilization and confidence in AT of PPTs and POTs deeply involved with AT, and emphasize that AT training is essential for pediatric treatment by comparing domestic and foreign studies.

• 한국가구학회지
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• 제29권1호
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• pp.18-23
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• 2018

The purpose of this study was to develop wood pots for create Optimum environment of plant growth using unused wood. to prove this, we examined the effects of cycle of water supply and nutrient concentration in wood pots on plant germination rate and growth factors (leaf number, stem diameter and length). The results are as follows. 1) The growth rate was higher at once of 2 days watering period. This suggests that the growth of the plants was better than that of the less water because the larch pots itself has the water retention capacity inside. 2) Germination rate and growth rate were better than other treatment groups when the concentration of nutrient solution was 0.5%. 3) Nitrogen, available phosphoric acid, and potassium showed higher contents than the nutrient - treated soil at 0.5% concentration of nutrient solution. This indicates that the nutrient solution absorbed from the larch affected the soil and plant growth in the inside.

• 한국수산과학회지
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• 제23권4호
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• pp.310-314
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• 1990

본 실험에서는 민꽃게 통발의 가장 바람직한 형 및 구조를 확정하기 위해 사구원통형과 사구각주형 통발을 고안하고, 수조실험 및 해상실험을 통해 그들의 민꽃게 유입성능 및 어획성능을 재래의 이구각주형 및 이구원통형 통발과 비교하였다. 그 결과, 수조실험을 통한 유입성능은 사구식에서 좋고 이구식에서 나쁜 경향이었는데, 구체적으로는 이구식의 경우 각주형보다 원통형에서 약간 더 좋았고, 사구식의 경우는 원추형보다 각주형에서 약간 더 좋았다. 해상실험을 통한 어획성능도 전체적으로는 비슷하였는데, 사구원추형이 이구원통형과 어획의 유의차가 없다는 것만이 달랐다. 따라서, 민꽃게 통발의 가장 바람직한 형은 사구각주형이라는 것을 알 수 있었다.

• 수산해양기술연구
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• 제26권3호
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• pp.237-243
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• 1990

본 연구는 수조실험을 통하여 주꾸미, Octopus Ocellatus GRAY의 단지색에 대한 선택성을 조사하고, 전통적인 주꾸미 단지의 재질을 고둥껍질에서 PVC로 대체할 경우 그 가능성을 규명하기 위하여 PVC 시험 단지를 제작하여 1989년부터 1990년까지 해상실험을 실시하여 어획율을 조사하였다. 실험에서 얻은 결과를 요약하면 다음과 같다. 1. 수중실험에서 적색, 녹색, 황색, 백색, 회색중에서 주꾸미가 선호하는 색은 회색, 적색, 녹색, 황색, 백색순으로 나타났다. 2. 해상실험에서 주꾸미의 선호색은 회색, 홍색, 녹색순으로 나타났고, 이것은 수조실험의 결과와 일치한다. 3. 어획성능면에서 고둥껍질과 회색 PVC 단지의 차이는 거의 없었다. 4. 직경별 어획율은 40mm PVC 단지가 1.00, 50mm가 0.19로 나타났다.

• 환경생물
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• 제31권2호
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• pp.154-157
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• 2013

Length-weight relationships were estimated for 11 fish species caught in Baekya Island, Korea. Samples were caught in depths of <15 m by fish pots between November 2008 and July 2009. The sampling gear, fish pots, is a widely used as commercial fishing gear in shallow waters of the region. The most abundant families were Hexagrammidae (20.7%), Cottidae (18.5%), Tetraodontidae (14.8%) and Scorpaenidae (13.3%). Estimates for parameter b of the length-weight relationship ($W=aL^b$) ranged between 2.454 and 3.361.

• 대한물리의학회지
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• 제8권1호
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• pp.99-109
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• 2013

PURPOSE: This study was designed to evaluate the current state of training in assistive technology(AT) for pediatric physical therapists(PPTs) and pediatric occupational therapists(POTs), in addition, investigate therapists' preferred training methods and contents. The eventual purpose was to suggest the essential fundamental factors to adapt the assistive technology in clinics. METHODS: The subject of this study were 167 therapists(98 PPTs and 69 POTs) who work at general hospitals, welfare center, facilities for the disabled, and special education school in Seoul and Gyeonggi province. Frequency analysis and Chi-squared test were used. RESULTS: Significant numbers of PPTs(66 therapists, 67.3%) and POTs(50 therapists, 72.5%) answered that they had received training in AT. More than 48% answered no training experience or low adequacy in each classification scheme for questions. The most difficulty in the training was indicated by lack of education opportunity(90 therapists, 53.9%). The most required device training was seating and position device training(43 therapists, 21.9%) for PPTs and orthosis and prosthesis device training(29 therapists, 21.0%) for POTs. In assistive technology service, PPTs needed evaluation to AT device training(69 therapists, 35.2%) and POTs needed evaluation to disabilities for AT training(41 therapists, 29.7%). Both therapists answered that the most effective training is continuous education(52 therapists, 31.1%) and college education(48 therapists, 28.7%). CONCLUSION: Our findings indicate that PPTs and POTs need more opportunities for training in AT. For effective clinical app lication of AT, there should be continuous education such as on-the-job training, mentoring program, technical manual, and college education.

• Environmental Engineering Research
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• 제24권1호
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• pp.127-136
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• 2019

Land application of treated palm oil mill effluent (TPOME) could be used as an alternative tertiary wastewater treatment process. However, phenolic compounds in TPOME might be leached to the environment. This study investigated the ability of grasses on reducing phenolic compounds in the leachate after TPOME application. Several pasture grasses in soil pots were compared after irrigating with TPOME from stabilization ponds, which contained 360-630 mg/L phenolic compounds. The number of soil bacteria in planted pots increased over time with the average of $10^8CFU/g$ for mature grasses, while only $10^4-10^6CFU/g$ were found in the unplanted control pots. The leachates from TPOME irrigated grass pots contained lower amounts of phenolic compounds and had lower phytotoxicity than that of control pots. The phenol removal efficiency of grass pots was ranged 67-93% and depended on grass cultivars, initial concentration of phenolic compounds and frequency of irrigations. When compared to water irrigation, TPOME led to an increased phenolic compounds accumulation in grass tissues and decreased biomass of Brachiaria hybrid and Brachiaria humidicola but not Panicum maximum. Consequently, the application of TPOME could be conducted on grassland and the grass species should be selected based on the utilization of grass biomass afterward.