http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김상표,김영진 경희대학교 산학협력기술연구원 1999 산학협력기술연구논문집 Vol.5 No.-
A broad meaning of PDM(Product Data Management) is a constructing methodology in sharing the product information of a company in enhancing the manufacturing capability. In upgrading PDM's capability, it is essential to integrate the web technology with it. Ultimately, PDM will operate on internet browser. This paper is to combine these two state of the art technologies in sharing product information in corporate environment. The development of web based PDM is consisted of three parts which are PDM workframe, Database management and Pre-Processor part. This program is evaluated through establishing internet use of engineering database for the machining tools.
김상표,배지연,박관규,권건영,이상숙,장은숙,김정숙,Kim, Sang-Pyo,Bae, Ji-Yeon,Park, Kwan-Kyu,Kwon, Kun-Young,Lee, Sang-Sook,Chang, Eun-Sook,Kim, Chung-Sook 대한세포병리학회 1995 대한세포병리학회지 Vol.6 No.2
Eighty cases of malignant effusion were cytologically studied to elucidate the incidence of primary tumor site and cytologic characteristics of each tumor types. Eighty fluid specimens were composed of 43 ascitic, 35 pleural, and 2 pericardial effusion and primary tumor site had been confirmed by histology. The frequent primary sites were stomach(22 cases, 28%), lung(21 cases, 26%), ovary(11 cases, 14%), liver(7 cases, 9%), and breast (4 cases, 5%). The principal malignant tumors were adenocarcinoma (56 cases, 70%), squamous cell carcinoma (7 cases, 9%), liver cell carcinoma (7 cases, 9%), small cell carcinoma (4 cases, 5%), and non-Hodgkin's lymphoma (4 cases, 5%). The distinctive cytologic findings according to primary tumor types were as follows; the gastric adenocarcinomas were mainly characterized by isolated cells and irregular clusters sometimes with signet ring cells. Papillary serous cystadenocarcinoma of ovary showed frequently papillary clusters and occasional psammoma bodies. Breast carcinoma of ductal type showed cell balls with smooth margins. Colonic adenocarcinoma showed rather irregular clusters or palisading pattern of cylindrical cells. Metastatic squamous cell carcinoma, liver cell carcinoma, small cell carcinoma, and non-Hodgkln's lymphoma showed also characteristic features. These findings Indicate that the cytological features observed in the great majority of malignant effusion are similar to those of primary tumor types, which are very helpful to indentify the primary tumor site.
Bouncing Wave Packets in a Two-Dimensional Box and Revivals Without Semiclassical Correspondence
김상표,이연석 한국물리학회 2006 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.49 No.1
Aronstein and Stroud [Phys. Rev. A 55, 4526 (1997)] used the wave function expanded by energy eigenfunctions to study the revival and fractional revivals of a localized wave function in an in.nite square well. Using the image method, we .nd the bouncing wave packet of traveling Gaussian wave packets for a free particle to study the revival and fractional revivals in a two-dimensional box. The short-term evolution is characterized by the periodicity of the position-expectation value of each Gaussian wave packet, and the long-term evolution by the time scale for constructive interference among Gaussian wave packets. We numerically show that the bouncing wave packet that evolves from an initially localized Gaussian wave packet that is dominated mostly by low-energy states and does not have any semiclassical correspondence still exhibits the revival and fractional revivals at rational fractions of the two time scales.