• 한국정보디스플레이학회:학술대회논문집
• /
• 2007.08a
• /
• pp.1053-1057
• /
• 2007

One of the important roles of glass is safety guarantee in CRTs. It is working under high vacuum and has to be maintained continuously for the atmosphere pressure, humidity, and excitation etc,. This paper propose to CRTs glass design method via the stress positioning control for slim CRTs using FEM to ensure the national safety standard and newly demanded safety standard by CRTs set makers.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.25 no.6
• /
• pp.1044-1049
• /
• 2011

The purpose of this study was to study clinical characteristics of patients complained of tremor and to evaluate availability of oriental medical treatment. This observation was made on 36 cases that were hospitalized in the Semyung University Oriental Medicine Hospital and evaluated tremor using clinical rating tremor scale(CRTS). The ratio of patients were essential tremor(50%), parkinson's disease(13.9%), psychogenic tremor(13.9%), physiologic tremor(11.1%), cerebellar tremor(11.1%). CRTS score of essential tremor patients decreased significantly. Physiologic tremor patients's CRTS score were under 15 points. Every patient's scores decreased. Two patients's score decreased to 0 point. Every patient were treated with Bojungikki-tang-gamibang. CRTS scores of psychogenic tremor patients were various.(4~24 points) Two patients's scores decreased to 0 point. The CRTS scores of three cases among four patients with cerebellar tremor were not changed. Changes of CRTS score between oriental medication group and western-oriental combined medication group were statistically significant. Changes of CRTS score between over 15 points group and under 15 points group were statistically significant. Kejigayongolmoryo-tang was one of the most widely used herbal medication, which was diagnosed as ascendant hyperactivity of liver yang.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2004.08a
• /
• pp.450-452
• /
• 2004

This paper analyzes some important achievements in Ergonomics field in CRT industry. After introducing principal regulatory requirements for CRTs, including ISO 9241 and TCO standards, the paper indicates some theoretical research in ergonomics of the display devices, such as new contrast parameter for appraising the display devices and effects of environment on visual performance at the ergonomic. Then, as the pivot of this paper, some practical progress, in the ergonomics field in CRT manufacturing , are described, such as vacuum sputtering process for advanced CRTs, new developed wet process for getting the multi-coating layers on surface of the panel.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2003.07a
• /
• pp.142-145
• /
• 2003

CRTs have been in the mainstream of displays for over 100 years since K. F. Brown invented the first tube in 1897. The position of CRTs, however, has come to be threatened by flat panel displays, whose performances are notably improved these days. The keys to survival of CRTs as leading displays are examined in this report.

• Journal of the Computational Structural Engineering Institute of Korea
• /
• v.16 no.1
• /
• pp.87-94
• /
• 2003

A geometric non-linear finite element formulation of CRTS reflector subjected to displacement loads, corresponding to the successional assembly steps of the reflector, is presented in order to determine the initial static equilibrium state based on the displacement incremental method. Parametric analyses of the influence of cables and mechanical properties of the reflector on the shape error between reference and equilibrium surfaces have been studied. These results of the present study are compared with the others using Galerkin mothod and NASS 98 program to demonstrate the feasibility.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2005.07b
• /
• pp.1179-1182
• /
• 2005

Nowadays, CRTs are threatened by the flat panel displays (FPD). The screen quality of the CRT is one of best among the displays, however, the depth of CRTs becomes one of the most important design factor to maintain the dominated portion in the display market. When designing slim CRTs, the structure of the glass is important design factor because of the weight and safety. The stress in the glass is increased according to the shortening the total length of tube. The residual stress of the seal is also a major factor should be considered due to the large seal edge thickness. The glass design concept for Vixlim is introduced in this paper.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2002.08a
• /
• pp.379-381
• /
• 2002

Mitsubishi Electric Corporation has marketed a series of multimedia CRTs enabling bright picture windows in a high-resolution date display screen. The key components of the multimedia CRTs named Diamondtran $M^2$ are a high-gm (low drive-voltage) electron gun and an aperture grille mask. A high-gm electron gun has been developed by designing a beam forming region with high-gm configuration combining with a high current-density cathode. The development of next generation high-gm guns are also introduced

• 한국정보디스플레이학회:학술대회논문집
• /
• 2004.08a
• /
• pp.731-734
• /
• 2004

Nowadays, CRTs are threatened by the flat panel displays(FPD). The depth of CRTs becomes one of the most important design factor to maintain the dominated portion in the display market. The slim CRT design is introduced in this paper.

• Steel and Composite Structures
• /
• v.52 no.4
• /
• pp.435-450
• /
• 2024

The geometry change of railway tracks significantly influences the safety and ride comfort of high-speed trains. This paper presents an analytical method to map the thermal deformations of a long-span arch bridge to the geometry of CRTS Type I double-block ballastless tracks for high-speed railways. A mechanical model of the bridge-track coupled system was developed to derive analytical formulae of the deformations of the track. The analytical formulae explicitly consider the mechanical properties of the bridge-track coupled system and the temperature profile. A three-dimensional finite element model was established to evaluate the predictions obtained from the analytical formulae. The results show that the analytical formulae provide accurate predictions of the track deformations caused by the thermal deformations of bridges. This research will promote the design, evaluation, and operation of high-speed railway bridges for improved safety and ride comfort in engineering practices.

• 한국정보디스플레이학회:학술대회논문집
• /
• 2002.08a
• /
• pp.367-370
• /
• 2002

CRTs can be improved by means of magnetic quadrupoles. Areas of improvement are convergence, spot shape, image-flatness and space charge compensation.