• 한국병원경영학회지
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• 제1권1호
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• pp.188-202
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• 1996

Telehealth is widely tested in the U.S.A and other developed countries. This system is expected to solve rural health problems reducing professional isolation. Some demonstration projects showed that the system can provide quality care in reasonable prices to rural residents. However, few study has been done on whether telehealth system can attract physicians by reducing professional isolation. The system is not available to most of the rural hospitals because the price for the equipment and telephone charges are not low enough. It is promising that the system cost and telephone charges are decreasing gradually. As time passes, rural hospitals will be more viable for the system. Satisfaction of the physicians and patients is a key factor for the implementation of the system. The physicians need to understand more about telecommunication and computer systems. After physicians are well-versed about the system, we can expect wide use of telehealth in rural areas. Effort for the confidentiality and standardization should be devoted to assure patient's privacy and compatibility of patient records and exam results. In Korea, two projects are being operated in Uljin and Kurye. A study evaluated the economic efficiency of the projects suggesting that increase of the number of patients up to three times of current number or decrease in hardware costs and telecommunication charges into two thirds of the current costs. The hardware and telecommunication charges are decreasing. Another area telehealth system can be applied is psychiatric accommodation facilities. Establishment of telehealth in the psychiatric facilities will increase the access of psychiatric care for patients and is expected to be economically efficient.

• 한국수정란이식학회지
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• 제31권1호
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• pp.73-80
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• 2016

An in vitro assay following culture of endometrial epithelial cells is essential for understanding epithelial cell function in reproduction. Several diverse techniques have been developed for isolating endometrial epithelial cells, although an optimal technique has not been identified. In this study, we describe a sedimentation-adherence (S-A) isolation technique with a high-yield cell-separating ability to isolate endometrial epithelial cells from 8-week-old female C57BL/6 mice. We analyzed total cell number, viability, morphology, and expression of cytokeratin 18 as an endometrial epithelial cell-specific marker in cells isolated using a mechanical method compared to the S-A technique. There were no significant differences in the total number, viability, or morphology of the putative endometrial epithelial cells with either method. In contrast, significantly more endometrial epithelial cells harvested using the S-A method were positively stained for cytokeratin 18 than those isolated using the mechanical method. These results confirm that the S-A method is more efficient for retrieving endometrial epithelial cells than a mechanical method.

• 한국동물위생학회지
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• 제15권2호
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• pp.150-165
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• 1992

The study for a effect of monitoring on bovine mastitis was conduced for a year from Dec, 1989 to Nov, 1990, Sampling the bulk milk of 350 herds in Inchon city and out of 10 herds among them were carried out herds guidance, CMT, SCC, isolation of pathogens and antibiotic sensitivity tests. The results obtained were summarized as follows 1. Annual mean SCC of 1213 herds was 558, 000 cell /ml 2. The number of SCC below 500, 000 cell /ml to quarters for herds guidance was at 1st 77. 0%, End 84.8% and 3rd 80.4%. The is shown that milk quality was steadly improved. 3. The most number of isolated pathogens of bovine mastitis was Staphylococcus SPP - 402(47.2%) Streptococcus SPP - 80(18.7% ) 4. The highest rate of antibiotic sensitivity test was Stapylococcus SPP - cephalothin(76.7%) Streptococcus SPP - ampicillin(77.5%) Gram negative bacilli - tetracyclin(76.0%) 5. The effect of monitoring on bovine mastitis was improved showing that at 1st 49.0% to 3rd 72.0%

• JSTS:Journal of Semiconductor Technology and Science
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• 제16권5호
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• pp.641-649
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• 2016

In this paper, a novel time-domain measurement technique on a high parallelism probe card with protection resistors installed is proposed. The measured signal amplitude decreases when the measurement is performed by Needle Auto Calibration (NAC) probing on a high parallelism probe card with installed resistors. Therefore, the original signals must be carefully reconstructed, and the compensation coefficient, which is related to the number of channel branches and the value of protection resistors, must be introduced. The accuracy of the reconstructed signals is analyzed based on the varying number of channel branches and various protection resistances. The results demonstrate that the proposed technique is appropriate for evaluating the overall signal performance of probe cards with Automatic Test Equipment (ATE), which enhances the efficiency of probe card performance test dramatically.

• 한국정보통신설비학회:학술대회논문집
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• 한국정보통신설비학회 2009년도 정보통신설비 학술대회
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• pp.387-390
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• 2009

Wireless Sensor Network (WSN) can easily compromised from attackers because it has the limited resource and deployed in exposed environments. When the sensitive packets are occurred such as enemy's movement or fire alarm, attackers can selectively drop them using a compromised node. It brings the isolation between the basestation and the sensor fields. To detect selective forwarding attack, Xiao, Yu and Gao proposed checkpoint-based multi-hop acknowledgement scheme (CHEMAS). The check-point nodes are used to detect the area which generating selective forwarding attacks. However, CHEMAS has static probability of selecting check-point nodes. It cannot achieve the flexibility to coordinate between the detection ability and the energy consumption. In this paper, we propose the control method for the number fo check-point nodes. Through the control method, we can achieve the flexibility which can provide the sufficient detection ability while conserving the energy consumption.

• Journal of Chest Surgery
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• 제22권1호
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• pp.16-24
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• 1989

To investigate the effects of hydrocortisone on new-born rat cardiac endothelial cells in culture, the endothelial cells were isolated by means of enzyme-cocktail method. The cells were cultivated in Lees modified Dulbeco\ulcorner medium and 10[M or 10[M of hydrocortisone was added to the medium. The cells were harvested or coverglass and processed for thiamin pyrophosphatase reaction and Feulgen reaction. The enzymatic activities of Golgi complex, number of cells and number of large nucleated[more than tetraploid] cells were counted and discussed for their significance. The results were summarized as follows; 1. Hydrocortisone seemed to accelerate the rate of recovery of cardiac endothelial cells from isolation damage. 2. Endothelial cells treated with hydrocortisone revealed strong positive reaction to thiamine pyrophosphatase in early culture and 10 M group had stronger reaction than that of 10 AM group 3. Hydrocortisone had inhibiting effects on endothelial proliferation and the higher the concentration of the reagent was the stronger effects. 4. Hydrocortisone inhibited the appearance of large nucleate cells in endothelial cell population. 5. Hydrocortisone seemed to suppress the nuclear DNA synthesis.

• Structural Engineering and Mechanics
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• 제67권1호
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• pp.69-78
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• 2018

The study presented herein focused on the change in hysteretic force-deformation behavior of lead rubber bearings (LRBs). The material model used to idealize response of LRBs under cyclic motion is capable of representing the gradual attrition in strength of isolator unit on account of lead core heating. To identify the effect of loading history on the hysteretic response of LRBs, a typical isolator unit is subjected to cyclic motions with different velocity, amplitude and number of cycles. Furthermore, performance of an LRB isolated single degree of freedom system is studied under different seismic input levels. Finally, the significance of lead core heating effect on LRBs is discussed by considering the current design approach for base isolated structures. Results of this study show that the response of an LRB is governed strongly by the amplitude and number of cycles of the motion and the considered seismicity level.

• 대한치과기공학회지
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• 제35권4호
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• pp.321-332
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• 2013

Purpose: This study was examined the characteristics of bacteria isolated from the dental stone that is made ??in the dental laboratory. Methods: 104 dental stones samples were collected from the 4 dental laboratory. Characteristics of bacteria were investigated by microorganism isolation culture method using a Blood Tryptic Soy Agar(TSA) medium. Results: The detected various bacteria was confirmed as pathogenic bacteria, non-pathogenic bacteria and natural bacteria. The isolated bacterial number was confirmed $2.9{\times}10^3CFU$ and maxium bacterial number of $3.0{\times}10^4CFU$. Conclusion: Therefore, infection prevention education is required, it must be to live up the hand-washing and wear protective clothing to protect themselves when working in a dental laboratory.

• Molecules and Cells
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• 제46권2호
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• pp.106-119
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• 2023

With the increased number of single-cell RNA sequencing (scRNA-seq) datasets in public repositories, integrative analysis of multiple scRNA-seq datasets has become commonplace. Batch effects among different datasets are inevitable because of differences in cell isolation and handling protocols, library preparation technology, and sequencing platforms. To remove these batch effects for effective integration of multiple scRNA-seq datasets, a number of methodologies have been developed based on diverse concepts and approaches. These methods have proven useful for examining whether cellular features, such as cell subpopulations and marker genes, identified from a certain dataset, are consistently present, or whether their condition-dependent variations, such as increases in cell subpopulations in particular disease-related conditions, are consistently observed in different datasets generated under similar or distinct conditions. In this review, we summarize the concepts and approaches of the integration methods and their pros and cons as has been reported in previous literature.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2011년도 춘계학술대회 논문집
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• pp.1668-1674
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• 2011

Door Inside Lamp of railway rolling stock is installed on interior of the side doors and illuminated at door opening and closing, isolation and fault. So drivers or passengers can notice the door status visually. In the past, a single color or Bi-color LED Lamps have been using and one ~ multiple lamp was used to implement the feature according to client's requirements. (Example: Total of between 2 and 4 lamps are required for the Warning / Emergency operation / Isolation / Fault.) However these design is not easy to apply if there is the mounting space restrictions and the problems such as rising costs can be caused. In addition, it has vulnerability from point of view aesthetic aspects. Therefore the lamp type has been required that has small size and number of colors in order to resolve these problems. Recently multi LED type door status indication lamp have been developed that can meet the requirements and this lamp has been applied in many railway projects. In this study, I'll introduce the general characteristics and mechanical & electrical characteristics of multi LED type door status indication lamp to help development of this kinds of lamp.