http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
신혁수, 김동범, 박진근, 이인환, 조해용 충북대학교 산업과학기술연구소 2013 산업과학기술연구 논문집 Vol.27 No.2
A valve spring retainer is a small disc and located at intake and exhaust valve stem of engine. The retainer supports a valve spring and transmits spring force to a valve. Force is applied to the retainer repeatedly by a rocker arm. Durability of the retainer is an important factor of performance. Weight of retainer affect dynamic performance of engine. Therefore, optimal strength and weight of the retainer design are needed. In this study, stress distribution and fracture load of retainer were analyzed by using FEM to design optimal strength and weight. Static load test was simulated by using commercial FEM code DEFORM-3D. Shapes of the retainer to reduce weight were designed and analyzed to verify validity of it. Simulated results and experimental ones were compared
필러 모델과 음소 모델 네트워크를 이용한 비인식 대상 문장 거부
이병혁,하진영 강원대학교 정보통신연구소 2005 정보통신논문지 Vol.9 No.-
Non-recognition utterance rejection is very important to improve the confidence of speech recognition system. Research efforts have been made for out-of-vocabulary word rejection. However, little attention has been paid to non-recognition sentence rejection. According to the appearance of pronunciation correction systems using speech recognition technology, it is needed to reject non-recognition sentences to provide users with more accurate and robust results. In this paper, we introduce three recognition network structures - phone-level, word-level, and sentence-level filler model network - using phone models and filler models to implement non-recognition sentence rejection system. We present three types of filler models: VC(Voiced Consonant), C(unvoiced Consonant), and V(Vowel) in the recognition network. Several experiments were performed to select the best network structure. We found that the word-level filler model network outperforms both phone-level model network and sentence-level filler model network. In addition, another experiment has been performed to find an optimal garbage ratio threshold according to the number of words in each target sentence. Experimental results show that we can achieve better performance using a length dependent threshold than using a constant threshold in terms of the average of FAR and FRR.
김형진,이지영,권혁윤 한국공업화학회 2004 응용화학 Vol.8 No.1
This study was carried out to evaluate the application possibility of UF Membrane System to papermaking industry in order to optimize the recycling of white water. In this study, for the efficiency test of UF modules, the MWCO(molecular weight cut-off) of the membrane was estimated by the COD measurement from UF filtrate water. From the rejection rate of membrane, three kinds of UF module were selected and evaluated in the factors of COD, SS, turbidity and flow rate.
김진환,이우태,김종혁 全南大學校 觸媒硏究所 1996 觸媒硏究 論文集 Vol.18 No.-
Composite membranes containing a metal complex as an oxygen carrier were prepared and tested for the capability of oxygen enrichment. The permeability characteristics of the membrane were measured by the volumetric method with the pressure difference ranging from 0.2 to 0.8Kg/cm². Both oxygen and nitrogen showed constant permeabilities, diffusion coefficients, and solubilities which do not depend on the pressure difference across the membrane. The metal complexes were also found to play a role of nitrogen carrier to a degree. For the case of the silicone membrane with Co(NO₃)₂.6H₂O complex, the permeability and the separation factor of oxygen were significantly improved to ??/cm³·cm/cm²·sec·cm-Hg and 2.7 respectively, at the pressure difference of 0.4Kg/cm². This improvement was attributed to the metal complex which acts as an oxygen carrier and thus increases the solubility of oxygen in the membrane.
Concurrent Primary Carcinoma and Metastatic Lesions of the Thyroid
Lee Jun Sung,Lee Jin Seok,Yun Hyeok Jun,Lee Yong Sang,Chang Hang-Seok 대한내분비외과학회 2022 The Koreran journal of Endocrine Surgery Vol.22 No.4
The thyroid gland is an infrequent site of metastases from other primary sites. Furthermore, concurrent primary carcinoma and metastatic disease of the thyroid gland is extremely rare. We report a case of concurrent primary and metastatic carcinoma of the thyroid gland.
Jin-Hyeok Lee,Hae-Kag Lee,Jae-Hwan Cho,Miju Cheon 한국자기학회 2014 Journal of Magnetics Vol.19 No.4
The purpose of the study is to investigate how uptake counts of <SUP>201</SUP>Tl of radioisotopes in the human body could change, when taking computed tomography and magnetic resonance imaging right after injecting contrast media.<SUP> 201</SUP>Tl radioisotope substances of iodine contrast medium, which is a computed tomography contrast medium, and paramagnetic contrast medium, which is an magnetic resonance imaging contrast medium, were used as study materials. First, <SUP>201</SUP>Tl was put into 4 cc of normal saline in test tube, and then a computed tomography contrast medium of Iopamidol<SUP>®</SUP> or Dotarem<SUP>®</SUP>, was put into 2 cc of normal saline in test tube. An magnetic resonance imaging contrast medium of Primovist<SUP>®</SUP> or Gadovist<SUP>®</SUP> was also put into 2 cc of normal saline in test tube. Each contrast medium was distributed to make <SUP>201</SUP>Tl as 3 mCi, with a total of 4 cc. Gamma camera, low energy high resolution collimator, and pinhole collimator were used to obtain images. The uptake count of<SUP> 201</SUP>Tl was measured with 1000 frames of images, and obtained after 10 times of repetition. This study revealed that the use of Gadovist<SUP>®</SUP>, which is an magnetic resonance imaging contrast medium, showed the smallest number of uptake count, after measuring <SUP>201</SUP>Tl uptake count by low energy high resolution collimator. On the other hand, the use of Iopamidol<SUP>®</SUP>, which is a computed tomography contrast medium, showed the biggest difference in uptake count, when measuring <SUP>99m</SUP>Tc uptake count by Pinhole collimator. When examining with gamma camera, using contrast medium and <SUP>201</SUP>Tl, identifying the changes of uptake count is very important for improving the value of diagnosis.
Radiofrequency Thermal Ablation of Primary Pleural Synovial Sarcoma
Lee, Ho Kyung,Kwon, Hyeok Jin,Lee, Heung Bum,Jin, Gong Yong,Chung, Myoung Ja,Lee, Yong Chul S. Karger AG 2006 Respiration Vol.73 No.2
<P>Percutaneous radiofrequency (RF) thermal ablation has received attention as an effective minimally invasive approach for the treatment of a variety of neoplasms. However, the therapeutic efficacy of RF thermal ablation on primary pleural synovial sarcoma has not yet been reported. A 76-year-old man with a primary pleural synovial sarcoma who was medically inoperable received RF thermal ablation to achieve local control. Therefore, an RF electrode was inserted into the lesion and connected to an RF generator. In this report, a case of successful treatment of a primary pleural synovial sarcoma using RF ablation without complication is presented.</P><P>Copyright © 2006 S. Karger AG, Basel</P>