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정맥주사 신우 촬용에 있어 Hyoscine-N-butylbromide가 상부 뇨로 조영에 미치는 영향
조재춘,김기수 최신의학사 1968 最新醫學 Vol.11 No.5
Influence of Hyoscine-N-butylbromide on visualiation of the upper urivary tract by intraveous pyelograbhy Jae Choon Cho, Kee Soo Kim. Department of Urology, Catholic Medical College Seoul, Korea The intravenous pyelography is a valuable diagnostic procedure in urological studies. There are four kinds of methods in the visualization of the upper urinary tract: Retrograde pyelography, minute sequence pyelography, antegrade pyelography and intravenous pyelography. Each procedure has its own advantages depending i on the purpose required. In the intravenous pyelography every effort should be made to protect expelling of the radiopaque medium from the renal pelvis into the bladder. The compression exerted on the abdomen around the lower ureters and the Trendelenburg gposition of the table are the choice of methods for this intravebut those are uncomfortable prodecures for the patient even though they are as a routine used in the purpose nous pyelography. Urine and other contents in the renal pelvis and ureters are drained into the bladder by ureteral peristalsis which is controled by parasympathetic nerves. So far no parasympatholytic agents such as atropine, scopolamine and other similar drugs were found to inhibit the ureteral peristalsis. C.H. Boehringer Sohn have synthesized Hyoscine-N-butylbromide from scopolamine in their laboratory. Helmut Wick in 1951 reported by experiments Hyoscine-N-butylbromide to be a parasympathetic ganglion blocking agent which inhibits spasms of the smooth muscles and peristalsis in the `gast-ro-intestinal tract, bronchus, kindney, ureters, bladder and uterus. The purpose of this study is to observe the influence of Hyoscine-N-butylbromide on ureteral spasms and the size of the kidney by intravenous pyelography. The authors choose 30 patients whose urography showed a spastic ureteral narrowing and a kinking of the ureter. Each patient was given 2 ml of Hyoscine-N-butylbromide intramusculary 30 minutes before intravenous pyelography was taken without compression on the lower abdomen and without changing of the patient's position. The results obtained were as follows: 1. Spastic ureteral narrowing due to increased ureteral peristalsis subsided by injection of Hyoscine-N-butylbromide on I.V.P. 2. Hyoscine-N-butylbromide was helpful to visusalize the upper urinary tract in the I.V.P. in spine positionl without compression of the lower abdomen and/or by tilting the table. 3. The size of the kidney was enlarged by 1.0 cmX 1.5 cm and caliber of the ureter was also enlarged by 3cm following an injection of Hyoscine-N-butylbromide for I.V.P.
Generative Adversarial Network를 활용한 Image2Vec기반 이미지 검색 모델 개발
조재춘,이찬희,이동엽,임희석 한국디지털정책학회 2018 디지털융복합연구 Vol.16 No.12
The most of the IR focus on the method for searching the document, so the keyword-based IR system is not able to reflect the feature information of the image. In order to overcome these limitations, we have developed a system that can search similar images based on the vector information of images, and it can search for similar images based on sketches. The proposed system uses the GAN to up sample the sketch to the image level, convert the image to the vector through the CNN, and then retrieve the similar image using the vector space model. The model was learned using fashion image and the image retrieval system was developed. As a result, the result is showed meaningful performance. 검색에서 이미지는 시각적 속성이 중요지만, 기존의 검색방법은 문서 검색을 위한 방법에 초점이 맞춰져 있어 이미지의 속성 정보가 미반영된 키워드 중심의 검색 시스템이 대부분이다. 본 연구는 이러한 한계를 극복하고자 이미지의 벡터 정보를 기반으로 유사 이미지를 검색할 수 있는 모델과 스케치로 검색 쿼리를 제공하여 유사 이미지를 검색할 수 있는 시스템을 개발하였다. 제안된 시스템은 GAN을 이용하여 스케치를 이미지 수준으로 업 샘플링하고, 이미지를 CNN을 통해 벡터로 변환한 후, 벡터 공간 모델을 이용하여 유사 이미지를 검색한다. 제안된 모델을 구현하기 위하여 패션 이미지를 이용하여 모델을 학습시켰고 패션 이미지 검색 시스템을 개발하였다. 성능 측정은 Precision at k를 이용하였으며, 0.774와 0.445의 성능 결과를 보였다. 제안된 방법을 이용하면 이미지 검색 의도를 키워드로 표현하는데 어려움을 느끼는 사용자들의 검색 결과에 긍정적 효과가 나타날 것으로 기대된다.
조재춘,이화영,임성택,박문수,오용수,조미숙,이영관 한국고분자학회 2010 Macromolecular Research Vol.18 No.1
Insulating films for hand-held phone printed circuit boards (HHP PCBs) were manufactured from a variety of epoxy resin formulations. The epoxy resin formulations were prepared by varying the curing accelerator content. The curing behavior was investigated by viscosity measurements under isothermal conditions using a rheometer. The films were used in a general PCB manufacturing process and their adhesiveness to the electroplating layer was confirmed by peel strength tests. Their surface morphology after desmearing was examined by SEM. The peel strength of the epoxy films with a copper layer was directly dependent on their surface roughness.