http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
김효성(Hyosung Kim),신용태(Yongtae Shin),정인성(Insung Jung),조민수(Minsoo Cho),박재표(Jaepyo Park),강필용(Pilyong Kang) 한국정보과학회 1998 한국정보과학회 학술발표논문집 Vol.25 No.1A
동일한 데이터를 다수의 수신자들에게 전송해야 하는 어플리케이션들이 등장함에 따라 다중점(multipoint)그룹 통신 모형이 필요하게 되었다. 한 그룹의 프로세스들이 작업을 수행하기 위해서는 메시지들을 그룹의 참여자들에게 효율적으로 멀티캐스트할 수 있는 통신 메카니즘이 필요하다. 효율적인 멀티캐스트를 제공하기 위해서는 어플리케이션이 요구하는 사항을 상세히 분석한 다음, 그 어플리케이션이 요구하는 기능들만을 수행하는 경량화(lightweight)된 프로토콜을 설계해야 한다. 신뢰성있는 멀티캐스트 프로토콜이 제공할 수 있는 기능들은 주소 할당, 멤버쉽 관리, 신뢰성있는 전송, 그리고 서비스의 질(QoS)등이 있으며, 지금까지 제안된 멀티캐스트 프로토콜들은 재전송 역할자 위치, 가상 토폴로지, 어플리케이션 특성, 멤버쉽 관리, 그리고 프로토콜 계층에 따라 분류될 수 있다. 멀티캐스트 프로토콜을 설계하기 위해 고려해야 할 점들은 확장용이(scalability), 혼잡제어(congestion control), 오류회복(error recovery), 버퍼관리(buffer management), 그리고 주소할당(address allocation)등이다.
MicroRNA-mediated Regulation of the Development and Functions of Follicular Helper T cells
Lee, Jeonghyun,Park, Hyosung,Eom, Jiyoung,Kang, Seung Goo 한국조명·전기설비학회 2018 한국조명·전기설비학회 학술대회논문집 Vol. No.
<P>The germinal center reaction is a key event of humoral immunity, providing long-lived immunological memory. Follicular helper T (T<SUB>FH</SUB>) cells are a specialized subset of CD4<SUP>+</SUP> T cells located in the follicles, which help B cells and thus control the germinal center reaction. T<SUB>FH</SUB> cell development is achieved by multi-step processes of interactions with dendritic cells and B cells along with the coordination of various transcription factors. Since the T helper cell fate decision program is determined by subtle changes in regulatory molecules, fine tuning of these dynamic interactions is crucial for the generation functional T<SUB>FH</SUB> cells. MicroRNAs (miRNAs) have emerged as important post-transcriptional regulatory molecules for gene expression, which consequently modulate diverse biological functions. In the last decade, the miRNA-mediated regulation network for the germinal center reaction has been extensively explored in T cells and B cells, resulting in the identification of several key miRNA species and their target genes. Here, we review the current knowledge of the miRNA-mediated control of the germinal center reaction, focusing on the aspect of T cell regulation in particular. In addition, we highlight the most important issues related to defining the functional target genes of the relevant miRNAs. We believe that the studies that uncover the miRNA-mediated regulatory axis of T<SUB>FH</SUB> cell generation and functions by defining their functional target genes might provide additional opportunities to understand germinal center reactions.</P>
EOM, KIDONG,KWAK, HYOSUNG,KANG, HYEWON,PARK, SANGHUN,LEE, HAEBEOM,KANG, HYUNGSUB,KWON, JUNGKEE,KIM, INSHIK,KIM, NAMSOO,LEE, KICHANG Wiley (Blackwell Publishing) 2008 Veterinary Radiology and Ultrasound Vol.49 No.6
<P>Virtual otoscopy enables noninvasive 3D endoluminal imaging of the middle ear through postprocessing of computed tompgraphy (CT) data. A standardized imaging approach for the middle ear was established in six normal dogs in an attempt to optimize the clinical application and student education. High-resolution CT data were obtained. Virtual otoscopic images of the middle ear cavity and ossicles were generated using commercially available software. The views of the four different directions (the ear canal, tympanic bulla, eustachian tube, and ossicular chain) were made for virtual otoscopy. The promontory, cochlea window, tympanic bulla, septum bulla, and auditory tube were distinguished easily and clearly. One of the ossicles, the malleus, was visualized accurately. However, small structures such as the incus and stapes always could not be seen. The main advantage of virtual otoscopy is not only to provide diagnostic information but also to enhance the quality and efficiency of student education, because it contributes to an understanding of the anatomy of the middle ear. We describe the normal topographical 3Dimages of the middle ear of the dog using virtual otoscopy.</P>
Performance of Double GEM and Triple GEM
Sanghyo Han,Do-Hyung Kim,Heedong Kang,Hyosung Cho,Jang-Min Han,Kyoungkeun Jeong,Sangmook Kang,Tae-Hoon Lee,Yongkyun Kim,Yong-Sub Cho,Young-Jun Kim 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.5
The operation of a double GEM and a triple gas electron multiplier (GEM) was examined in several gas mixtures, including Ar/Isobutane, Ar/CO2, and Ar/N2. In the double GEM and the triple GEM detectors, large gains of about 5 104 and 6 105, respectively, were obtained for the Ar/Isobutane mixture. The optimum value of the transfer eld and the dependence of the collection current on the drift, transfer, and collection field strengths for the GEM voltage sharing in the double GEM are discussed. A lower operation voltage and gain limit are also reported for the case of a triple GEM.