• 한국운동역학회지
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• 제21권4호
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• pp.421-427
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• 2011

The purpose of this study was to analyze the difference between male and female tennis players' two-handed backhand stroke and to provide basic data which helps precise and efficient instruction for the sake of precise postures, enhanced performances and skills. 5 male and 5 female university players were recruited as subjects, and the mean difference between the kinematic variables such as the time from backswing to impact and total swing time, racket head velocity, change of the center of body gravity in two-handed backhand stroke through three-dimensional motion analysis. The test data was analyzed by t-test, and the alpha level of ${\alpha}$=.05 was set for all tests of significance. The findings of the study were as follows; First, there was no difference in the time from backswing to impact and total time of

• 보존과학연구
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• 통권26호
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• pp.141-164
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• 2005

Most of the stone cultural properties is exposed to the weathering factor(rain, windetc.), so the shelter is constructed for reduction of its direct effect. But the shelter is indicated some problems that inharmoniousness of the surroundings, in section disturbance for insufficiency of light, the loss about the value of cultural properties and so on. So we have investigated on environmental condition (temperature, relative humidity, wind etc.) at the Standing Stone Buddhist Triad in Bae-ri, Gyeongju and Rock-carved Triad Buddha in Seosan because check the effect of the shelter. As the result, the Standing Stone Buddhist Triad in Bae-ri, Gyeongju is located a pine wood and a lot of bamboo grow naturally in nearing. Environmental difference on inside and outside of the shelter is not found because opened on all sides. But there is so dim for the direction of the sunlight that can't see the Standing Stone Buddhist. The base rock of Rock-carved Triad Buddha in Seosan well develop with crack and break, and the vegetation(trees, moss, lichen etc.) grow naturally in surroundings. Environmental difference on inside and outside of the shelter is found because closed on all sides and opened the front gate only inspection time. Inside of the shelter was too calm(air-velocity not detected) and humid(over 75%RH). Also the surface is occurred the dew(at 2-4 pm) and the efflorescence for effect of the water(rain, dew etc.). Besides the head of the central Buddhist is so dangerous for crack.

• 대한한방내과학회지
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• 제41권6호
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• pp.1200-1209
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• 2020

Aphasia is a language disorder that results from brain damage and typically occurs after a stroke. The purpose of this case report was to describe the effects of Korean medical treatment on anomic aphasia after a putaminal hemorrhage. We used Korean medical treatment, including head acupuncture and herbal medicine (Hyungbangsabaek-san) therapy, on a patient who was admitted to the hospital for 19 days. The clinical symptoms were assessed with the Korean version of the Western Aphasia Battery (K-WAB), and quality of life was evaluated with Korean version of Stroke and Aphasia Quality of Life Scale-39 (K-SAQOL-39). After 19 days of treatment, the K-WAB scores were increased from 17 to 19 in the spontaneous speech score, from 7.55 to 9.85 in the comprehension score, from 9 to 9.4 in the speaking score, and from 5.8 to 9.7 in the naming score. The AQ score was increased from 78.7 to 95.9, and the K-SAQOL-3 score was increased from 2.64 to 3.26. In conclusion, the study findings suggested that Korean medical treatment could be an effective option for treating symptoms and improving quality of life in patients with aphasia after stroke.

• The Korean Journal of Pain
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• 제18권2호
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• pp.279-283
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• 2005

Biplane fluoroscopy is usually used in angiography. Biplane fluoroscopy gives a biplane image with high resolution during the performance of operations. Trigeminal nerve blocks are effective treatment modalities for trigeminal neuralgia, and maxillary nerve block is the most dangerous procedure among them. The anatomic structures can change after head and neck surgery, so the trigeminal nerve block procedures cannot be done so easily. We used biplane fluoroscopy in these difficult cases. Our first case was a 60-year-old man who had undergone maxillary nerve block. The second case was of a 64-year-old man who had pulsed radiofrequency lesioning of mandibular nerve performed after head and neck surgery. With biplane fluoroscopy, we got good results without any complications.

• 한국방재학회 논문집
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• 제9권1호
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• pp.81-89
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• 2009

지금까지 우리나라의 재난관리 활동은 재난관리의 주체가 전적으로 국가 및 지방자치단체인 공공행정이 책임이라는 인식하에서 추진되었지만, 대형화되는 재난현장에서 공공분야만의 재난관리 역량으로는 실제 재난발생시 기대했던 효과를 내지 못하고 있는 것이 현실이다. 따라서, 본 연구는 이를 분석하기 위해, 사전에 주민대표(이, 통장)를 대상으로 대비-대응-복구 단계별 "주민개인-주민공동-민관협동" 에 의한 재난관리 대비태세를 중심으로 인터뷰를 실시하였으며, 이를 바탕으로 지역자율방재단원들이 지역방재력량을 발휘하기 위한 요소를 "위험 인지능력, 피난유도능력, 자주피난 대비능력, 방재체제 정비정도, 감시경계능력, 정보전달능력" 등 6가지로 분류하여 설문조사를 실시하고 분석하였다.

• 한국항행학회논문지
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• 제21권6호
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• pp.544-548
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• 2017

국제민간항공기구에서는 전 세계적으로 PBN 이행 촉구를 위해 2025년까지 모든 항공기의 SBAS 사용을 권고하고 있는 상황이다. 이에 국내에서도 한국형 SBAS인 KASS 개발이 진행 중에 있다. ICAO에서는 SBAS에 대한 인증 및 운용에 있어서 해당 항공 당국에 그 권한을 부여하고 있으며, KASS 또한 시스템 상세 설계, 제작, 설치 가 수행된 후 시스템에 대한 검증이 이루어 질 예정이다. 이에 본 논문에서는 국제 표준의 비행검사 규정을 통해 비행시험 파라미터를 도출 하였으며 이를 측정하기 위한 탑재측정장비의 구성방안에 대해서 제안 하였다.

• Medical Lasers
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• 제7권1호
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• pp.6-12
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• 2018

Introduction Energy-based devices allow for a more rapid and efficient ligation of blood vessels during operations. In the present study, we evaluated the feasibility of a laser as an alternative energy source for the vessel sealing system and determined the optimal condition of laser for an effective vessel sealing through histologic examination. Materials and Methods The arteries (5 mm diameter) harvested from porcine legs were compressed between two glass-slides to eliminate its luminal space and were irradiated with 1,470-nm diode laser under various sealing conditions, including laser power (5-30 W), irradiation time (5 or 10 seconds), and focus mode (focus or defocus). Subsequently, the irradiated vessels were fixed in 4% formaldehyde and then processed to paraffin block. The paraffinized sample was sectioned and stained with hematoxylin and eosin for histological evaluation. Results The extent of tissue change was positively correlated with duration and power of laser. In defocus mode, the irradiated vessels showed sufficient tissue denaturation for sealing effect without severe tissue destruction. Moreover, among the various conditions of irradiation, laser power between 15 and 20 W, as well as exposure time of 5 seconds were appropriate for sealing the blood vessels. Conclusion Adequate power and irradiation duration of laser can render blood vessels to be sealed effectively, although the higher power of laser may be required to cut the vessels.

• Applied Microscopy
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• 제41권2호
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• pp.117-122
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• 2011

한국산 검은큰집박쥐(Pipistrellus savii velox)의 정자의 형태를 알아보기 위해서 투과전자현미경으로 관찰하였다. 검은 큰집박쥐 정자두부의 모양은 탄환형의 형태를 취하고 있었다. 정자두부의 전체길이는 3.1 ${\mu}m$이었으며, 핵의 길이는 3.0 ${\mu}m$, 폭은 1.8 ${\mu}m$으로서 정자두부의 대부분을 차지하고 있었다. 정자경부의 분절와(segmented column)는 약 14~15개로 구성되어져 있었으며, 중편부의 미토콘드리아 회전수는 57개 정도이었다. 또한 중편부의 외측섬유는 1, 5, 6번이 다른 것 보다 크다. 주편부에서는 섬유초(fibrous sheath)와 종 지주(longitudinal column)가 뚜렷하게 관찰되었지만 미부에서는 섬유초가 관찰되지 않았다. 이 연구에서 검은큰집박쥐는 정자두부의 길이가 다른 박쥐류 종보다도 매우 짧은 특징을 갖고 있었다.

• 한국동물학회지
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• 제36권2호
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• pp.175-180
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• 1993

Eighty one specimens of nhodeus sericeus (Pallas, 1176) were collected at the upper stream of the Som River (37$^{\circ}$32' 38" N, 127$^{\circ}$58' 57" E: Maegok-ri, Konggun-myon, Hoengsong-gun, Kanguvon-do, Korea) which is a tributary of the Namhan River. This is the first report of the species in the southern part of the Korean Peninsula. This species is well discriminated from the other species in the genus nhodeus by the following respects. The number of scales of transverse series is more than 34 (range 34-37, mean 35.7 $\pm$0.7). Head is echo감or and snout is Bonder than those of the other species. The upper part of the eve is always black and the lateral body surfaces are reddish purple. It had been hem that the southern limit of the distribution of Rhodeus sericeus was the Yonghung River in Hamgvongnam-do, north-eastern part of the Korean Peninsula. But their distributional range is extended more southerly to the Han River system which tons westward through the central part of the Korean Peninsula.Peninsula.

• Journal of Microbiology
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• 제34권1호
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• pp.1-6
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• 1996

The nucleic acid of Synechococcus sp. cyanophage was identified as double-stranded DNA by the result of digestion with enzymes such as exonucleases, DNase, and S1 nuclease, and by acridine orange staining. The cyanophage DNA was cleaved with several restriciton ehdonucleases such as ApaI, BamHI, Bg/II, HaeIII, Eco RI, HindIII, PstI, AND aPAI gave the clearest sets of bands on agarose gels and the fragment numbers for each were 12, 20, 29, 20, and 7, respectively. The sums of the size from Bam HI and PstI digestions were estimated approximately 227$\pm$4 kb, which are in agreement with the result of the pulsed field gel electrphoresis. This virus is thought to have the largest genosome among those of known cyanophages, which corresponds to the largest haed ot 90 nm when compared with the head sizes of cyanophages discovered since 1963.