http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
개별검색 DB통합검색이 안되는 DB는 DB아이콘을 클릭하여 이용하실 수 있습니다.
통계정보 및 조사
예술 / 패션
<해외전자자료 이용권한 안내>
- 이용 대상 : RISS의 모든 해외전자자료는 교수, 강사, 대학(원)생, 연구원, 대학직원에 한하여(로그인 필수) 이용 가능
- 구독대학 소속 이용자: RISS 해외전자자료 통합검색 및 등록된 대학IP 대역 내에서 24시간 무료 이용
- 미구독대학 소속 이용자: RISS 해외전자자료 통합검색을 통한 오후 4시~익일 오전 9시 무료 이용
※ 단, EBSCO ASC/BSC(오후 5시~익일 오전 9시 무료 이용)
Recently rise in oil prices feet the burden on not only diesel vehicle driver but also LPG vehicle driver, and get interested in various way to reduce fuel costs. In this study discuss on exhaust emissions characteristics on driving cycle mode and ignition advance condition change of CNG/LPLI Bi-Fuel vehicle. Experimental test was performed by changing the conditions of fuel (LPG/CNG), spark advance (Base, 10oCA, 15oCA), and driving mode (FTP-75, HWFET, and NEDC). In case of CO emission, in the order of CNG Base, CNG S/A10, S/A15 condition are average reduced -21%, -35%, -29% respectively compared to LPG fuel. The active emission reduction from the initial engine start, spark retard is likely to be beneficial in catalyst warm-up and improve combustion stability rather than spark advance.
Objectives We report 1 treatment case with Euphorbiae Kansui Radix which is based on Sasang constitutional Medicine for Chronic Dizziness in Soyangin. Methos We treated Soyangin patient suffering form chronic dizziness. We prescribed Euphorbiae Kansui Radix for her physical symptoms. The improvement of her dizziness was evaluated by Visual Analogue Scale(VAS). Results After the Euphorbiae Kansui Radix was given, the patient's Dizziness was improved. And there was not any adverse effect. Conclusions This study shows that using Euphorbiae Kansui Radix can be effective treatment for Soyangin chronic dizziness patient.
With increasing interest, there have been studies on LiDAR(Light Detection And Ranging)-based DEM(Digital Elevation Model) to acquire three dimensional topographic information. For producing LiDAR DEM with better accuracy, Filtering process is crucial, where only surface reflected LiDAR points are left to construct DEM while non-surface reflected LiDAR points need to be removed from the raw LiDAR data. In particular, the changes of input values for filtering algorithm-constructing parameters are supposed to produce different products. Therefore, this study is aimed to contribute to better understanding the effects of the changes of the levels of GroundFilter Algrothm’s Mean parameter(GFmn) embedded in FUSION software on the accuracy of the LiDAR DEM products, using LiDAR data collected for Hwacheon, Yangju, Gyeongsan and Jangheung watershed experimental area. The effect of GFmn level changes on the products’ accuracy is estimated by measuring and comparing the residuals between the elevations at the same locations of a field and different GFmn level-produced LiDAR DEM sample points. In order to test whether there are any differences among the five GFmn levels; 1, 3, 5, 7 and 9, One-way ANOVA is conducted. In result of One-way ANOVA test, it is found that the change in GFmn level significantly affects the accuracy (F-value: 4.915, p<0.01). After finding significance of the GFmn level effect, Tukey HSD test is also conducted as a Post hoc test for grouping levels by the significant differences. In result, GFmn levels are divided into two subsets ( ‘7, 5, 9, 3’ vs. ‘1’). From the observation of the residuals of each individual level, it is possible to say that LiDAR DEM is generated most accurately when GFmn is given as 7. Through this study, the most desirable parameter value can be suggested to produce filtered LiDAR DEM data which can provide the most accurate elevation information.
Bottlebrush copolymers has received a considerable attention recently because of their unique characteristics including large domain size over a few hundred nm and fast self-assembly kinetics. While most of recent work has focused on the bottlebrush copolymers comprising symmetric length of side chains, only a few studies have been reported on the bottlebrush copolymer with asymmetric length of side chains. To facilitate the potential applications, a systematic synthesis of bottlebrush copolymers and comprehensive investigation on their morphologies in bulk, solution and thin films are required. In this work, we synthesize a series of bottlebrush copolymers in which polystyrene and polylactide side chains are statistically grafted to a polynorbornene backbone. Both symmetric and asymmetric version of bottlebrush copolymers are synthesized in a controlled manner. Morphologies of the bottlebrush copolymers are tailored by simply tuning the length and the volume fraction of side-chains.
이상 증례에서 고령의 소양인(少陽人) 환자에게 사상의학적 육미지황탕가감방(六味地黃湯加減方) 투약으로 급성 요폐의 소실과 하부요로증상 등의 소실 및 호전을 점진적으로 관찰하여 이에 보고하는 바이다. We report 1 case about Yukmijihwang-tanggagambang that was considered by Sasang constitution that was used for an elderly Soyangin patient with acute urinary retention, lower urinary tract symptoms and other symptoms. We treated an elderly Soyangin patient who suffered from acute urinary retention, lower urinary tract symptoms and other symptoms, who had history of benign prostatic hyperplasia. We considered his Sasang constitution and prescribed Yukmijihwnag-tanggagambang mainly. The improvement of his symptoms were evaluated by presence of symptoms, times of urination and visual analogue scale. After treatment that was been Yukmijihwang-tanggagambang mainly, patient's symptoms were disappeared or improved. And there was not any adverse effect. This study shows that using Yukmijihwang-tanggagambang that was considered by Sasang constitution can be effective treatment for an elderly Soyangin patient's acute urinary retention, lower urinary tract symptoms and other symptoms.
현재 다양한 산업에서 구조재로서 박판 형태의 소재가 많이 사용되고 있다. 이러한 박판 구조물에 결함이 발생하면 구조물의 파괴를 불러와 인적 물적 피해를 발생하게 된다. 이러한 결함을 파악하기 위해 다양한 비파괴검사 기법 중 초음파 검사 기법을 주로 사용하고 있다. 하지만 5mm 이하의 두께를 가지는 얇은 박판 소재에서의 미세결함을 탐상하는데 있어 결함의 판별 및 신호 해석에 어려움이 있다. 이에 본 연구에서는 전자기 음향 트랜스듀서 기반 공진 초음파 분광법을 적용하여 미세결함을 탐상하고자 하였다. 유한요소해석을 통해 결함 유무에 따른 공진 주파수 및 출력 전압의 변화를 파악하였고 실제 알루미늄 박판에 미세 결함을 인가한 시험편을 제작하였다. 본 연구 기법을 적용하여 미세결함을 탐상한 결과 공진 주파수의 변화 및 출력 전압의 변화를 통해 미세결함의 유무를 판별 및 스캔 이미지를 파악할 수 있었다. Currently, thin plate-type materials are widely used as structural materials in various industries. Defects in such a thin plate cause destruction of the structure, resulting in human and material damage. The ultrasonic inspection technique is the most widely used non-destructive inspection method to detect such defects. However, it is difficult to detect micro defects in a thin plate with thickness ≤ 5mm and analyze their signals. In this study, electromagnetic acoustic transducer-based resonant ultrasonic spectroscopy was applied to detect micro defects. Through finite element analysis, the change of the resonance frequency and output voltage depending on the presence or absence of defects was determined, and a test specimen was fabricated by incorporating fine defects to an actual aluminum plate. Our results indicate that it is possible to identify the presence of micro defects using this technique and to recognize the scanned image by changing the resonance frequency and output voltage.
LED는 빛을 내는 반도체 이다. 최근 친환경적 산업이 발전함에 따라 LED조명의 연구가 활발하게 진행되어가고 있다. 특히 LED를 이용한 통신기법인 LED 통신에 대한 활발한 연구가 진행 중이다. 본 논문에서는 LED 통신기반 멀티 홉 무선 전송네트워크시스템을 설계 구현하였다. 설계된 시스템은 LED를 이용한 송신부 회로, PD와 OP-Amp를 이용한 수신부 회로 및 멀티 홉 지원을 위해서 PD, OP-Amp 및 LED로 구성된 릴레이로 시스템이 구성된다. 설계된 시스템의 실험은 다음처럼 진행되었다. 송·수신부 양 끝단에 컴퓨터를 연결하고, 중간 노드로서 두 개의 릴레이를 송·수신 컴퓨터 사이에 연결한다. 그리고 텍스트 전송프로그램을 이용하여 텍스트를 연속적으로 전송하였다. 이때 보드 레이트, 전송거리 등 다양한 변화를 주면서 실험을 진행하였다. LED is just a semiconductor which can produce light. Currently, there are active research works on LED lighting technologies according to the growth of energy-saving environmental industry. Especially, LED communication is one of the active research works in these fields. In this paper, we design a LED communication-based multi-hop transmission wireless network system. The designed system consists of a transmission circuit system(transmitter) using LED and a receiving circuit system(receiver) using PD(photo detector) and OP-Amp, and relay system which can support multi-hop wireless network service with PD, OP-Amp, and LED, respectively. The experiments for the designed system are performed as follows. One computer is connected at the end of transmitter and receiver, respectively. There are two relays between transmitter and receiver, and text files are transmitted continuously by using text transmission programming. In this experiment, we test the performance with various baud rates, transmission ranges.