• Journal of Electrical Engineering and Technology
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• 제2권3호
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• pp.289-293
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• 2007

The fault current limiting characteristics of the separated and the integrated three-phase flux-lock type superconducting fault current limiters (SFCLs) were analyzed. The three-phase flux-lock type SFCL consisted of three flux-lock reactors and three $high-T_c$ superconducting (HTSC) elements. In the integrated three-phase flux-lock type SFCL, three flux-lock reactors are connected on the same iron core. On the other hand, three flux-lock reactors of the separated three-phase flux-lock type SFCL are connected on three separated iron cores. The integrated three-phase flux-lock type SFCL showed the different fault current limiting characteristics from the separated three-phase flux-lock type SFCL that the fault phase could affect the sound phase, which resulted in quench of the HTSC element in the sound phase. Through the computer simulation applying numerical analysis for its three-phase equivalent circuit, the fault current limiting characteristics of the separated and the integrated three-phase flux-lock type SFCLs according to the ground fault types were compared.

• Rapid Communication in Photoscience
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• 제5권1호
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• pp.1-7
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• 2016

Fluorescent receptors have gained much attention because of their usefulness in analysis and clarification of the roles of biomolecules in living systems. Molecular structures of the integrated type including that the receptor itself is fluorescent, and play an important role in having the functionality or selectivity of the fluorescent compounds. These spaced type fluorescent receptors are required to have special molecular design in order to transmit the information of molecular recognition to the fluorescent unit through the spacer unit. Compared with the spaced type fluorescent receptors, number of the integrated type receptors is limited due to the difficult molecular design and synthesis. Modification of alteration of the fluorophore frequently caused deterioration of the fluorescent property. Various spaced type and integrated type fluorescent receptors including switch on-off receptors are introduced in this article.

• Nuclear Engineering and Technology
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• 제36권2호
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• pp.127-141
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• 2004

Various types of integrated steam generators, which integrate IHTS and a steam generator into a single unit of equipment for an LMR, were analyzed using an analytic solution with some simplification. The analysis showed that the undesirable reversed heat transfer, of which occurrence was previously observed only in an integrated single-region bundle type, can also occur in an integrated double-region bundle type. The mechanism of the reversed heat transfer occurrence in the double-region type is explained and it is shown the mechanism in the double-region type is completely different from that in the single-region type. Based on this finding, a method for preventing the aforementioned heat transfer is suggested. The performance of the four types of the integrated steam generators is assessed. For this assessment, a SG is actually designed for each type and the optimization in the geometric parameters and flow rate are optimized.

• 한국전기전자재료학회논문지
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• 제22권8호
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• pp.689-693
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• 2009

We investigate the comparison of fault current characteristics between the separates three-phase flux-lock type superconducting fault current limiter(SFCL) and integrated three-phase flux-lock type superconducting fault current limiter(SFCL). The single-phase flux-lock type SFCL consists of two coils. The primary coil is wound in parallel to the secondary coil on an iron core and superconducting elements are connected to secondary coil in series. Superconducting elements are used by the YBCO coated conductor. The separated three-phase flux-lock type SFCL consists of single-phase flux-phase type SFCL in each phase. But the integrated three-phase flux-lock type SFCL consists of three-phase flux-reactors wound on an iron core. Flux-reactor consists of the same turn's ratio between coil 1 and coil 2 for each single phase. To compare the current limiting characteristics of the separated three-phase flux-lock type SFCL and integrated three-phase flux-lock type SFCL, the short circuit experiments are carried out fault condition such as the single line-to-ground fault. The experimental result shows that fault current limiting characteristic of the separated three-phase flux-lock type SFCL was better than integrated three-phase flux-lock type SFCL. And the integrated three-phase flux-lock type SFCL has an effect on sound phase.

• 한국감성과학회:학술대회논문집
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• 한국감성과학회 2009년도 추계학술대회
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• pp.269-272
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• 2009

The temperature of PV modules that integrated into building facades or roof increases that could reduce the electrical efficiency of the PV system. In order to incresae PV system's efficiency it is very important to remove the heat from the PV modules. For this purpose, hot air can be extracted from the space between PV modules and building envelope, and used for heating in buildings. The solar collector utilizing this thermal effect is called photovoltaic-thermal(PVT) solar collector. This paper compares the experimental performance of building-integrated PVT collectors that applied on building roof and facade. There are two different case: a roof-integrated PVT type and a facade-integrated PVT type. The experimental results show that the collected thermal energy of the roof-integrated type was 24% higher, compared to that of the facade-integrated.

• 가정간호학회지
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• 제28권3호
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• pp.317-328
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• 2021

Purpose: The purpose of this study is to provide patient-centered nursing by comparing the patient needs, patient satisfaction, and communication type of nurses for patients admitted to integrated nursing care service ward and general ward. Methods: Data were collected by self-report questionnaires between September 7 and October 9, 2021. Patients were patients recruited from a hospital in D city, 100 each from comprehensive nursing care service ward and general ward. The data were analyzed using descriptive statistics, 𝜒²-test, t-test, ANOVA, and Pearson's correlation. Results: There was no significant difference in patient needs between the patients of integrated nursing care service ward and the general ward (t=-1.12, p=.263). However, patient satisfaction was higher among the patients in integrated nursing care service ward than in the general ward (t=-3.55, p<.001). Pertaining to the communication type of nurses, the informational communication type (t=-4.02, p<.001) and the friendly communication type (t=-3.92, p<.001) were stronger in the integrated nursing care service ward than the general ward. It was, hence, confirmed that the educational requirements were positively correlated with patient satisfaction in the reliability domain and technical-professional domain, and that the nurse informational communication type and friendly communication type had a significantly positive correlation with patient satisfaction. Conclusion: The expansion of the integrated nursing care service ward may be considered in the future, with an informational and friendly communication method as an effective response that can be adapted in practice as a reflection the type of communication among nurses.

• 한국태양에너지학회 논문집
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• 제30권5호
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• pp.56-62
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• 2010

The integration of PV modules into building facades or roof could raise their temperature that results in the reduction of PV system's electrical power generation. Hot air can be extracted from the space between PV modules and building envelope, and used for heating in buildings. PV/thermal collectors, or more generally known as PVT collectors, are devices that operate simultaneously to convert solar energy from the sun into two other useful energies, namely, electricity and heat. This paper compares the experimental performance of BIPVT((Building-Integrated Photovoltaic Thermal) collectors that applied on building roof and facade. There are four different cases: a roof-integrated PVT type and a facade-integrated PVT type, the base models with an air gap between the PV module and the surface, and the improved models for each types with aluminum fins attached to the PV modules. The accumulated thermal energy of the roof-integrated type was 15.8% higher than the facade-integrated regardless of fin attachment. The accumulated electrical energy of the roof-integrated type was 7.6% higher, compared to that of the facade-integrated. The efficiency differences among the collectors may be due to the fact that the pins absorbed heat from the PV module and emitted it to air layer.

• 한국관개배수논문집
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• 제11권1호
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• pp.64-76
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• 2004

For effective development of upland areas, e development model of upland area integrated improvement project are suggested which on standard type and integrated infrastructure improvement type, rural Income raising type and eco-friendly consolidation type

• The Plant Pathology Journal
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• 제38권2호
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• pp.167-174
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• 2022

Pseudomonas amygdali is a hemibiotrophic phytopathogen that causes disease in woody and herbaceous plants. Complete genomes of four P. amygdali pathovars were comparatively analyzed to decipher the impact of genomic diversity on host colonization. The pan-genome indicated that 3,928 core genes are conserved among pathovars, while 504-1,009 are unique to specific pathovars. The unique genome contained many mobile elements and exhibited a functional distribution different from the core genome. Genes involved in O-antigen biosynthesis and antimicrobial peptide resistance were significantly enriched for adaptation to hostile environments. While the type III secretion system was distributed in the core genome, unique genomes revealed a different organization of secretion systems as follows: type I in pv. tabaci, type II in pv. japonicus, type IV in pv. morsprunorum, and type VI in pv. lachrymans. These findings provide genetic insight into the dynamic interactions of the bacteria with plant hosts.

• 전기전자학회논문지
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• 제24권2호
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• pp.453-460
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• 2020

본 논문에서는 함정의 합내통신, 함외통신, 방송, 전화 등의 통합통신 안테나 중 함외통신용 UHF 대역 통합통신 안테나를 통합마스트에 탑재 가능한 평면형으로 설계했다. 제안된 통합마스트 탑재용 안테나는 해군의 한국형차기구축함(KDDX)에 적용되는 통합통신용 안테나로 작전능력, 생존성 강화와 운용성과 정비성의 향상 등 '복합경사' 구조를 포함하는 최적화된 형태의 통합통신용 안테나이다. 기존 회전식 레이더와 다수의 모노폴 형태의 통신용 안테나를 마스트 외관에 불규칙한 형태로 부착된 형태에서 평판형 통합통신용 안테나를 포함하는 통합 마스트 형상으로 변경하여 레이더 반사 면적 지수(RCS)를 크게 낮추며 해외제품 대비 고이득 광대역 안테나를 개발목표로 한다.