• Proceedings of the KIEE Conference
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• 2015.07a
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• pp.369-370
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• 2015

ABC 케이블 배전방식은 완전절연이 가능한 전력케이블 3상 또는 단상을 1가닥의 조가선에 일정한 간격으로 꼬아서 전주를 이용하여 가공으로 설치 할 수 있는 특고압 및 저압 케이블을 말한다. ABC 케이블은 국내외에서 이용되고 있는 방식으로 수목 접촉, 염해, 조류사고 다발지역은 물론 건조물과 전선 사이의 이격거리가 미달되는 개소 등에서 사용되고 있다. 본 논문은 ABC 케이블 가공배전선로에서의 과도현상을 해석하고 일반 가공배전선로의 경우와 비교함으로써 ABC 케이블 배전선로의 결과를 평가하였다. 본 논문에서의 모델링 및 분석은 EMTP를 이용하였다.

• Parasites, Hosts and Diseases
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• v.53 no.3
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• pp.335-339
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• 2015

Cryptosporidium andersoni ATP-binding cassette (CaABC) is an important membrane protein involved in substrate transport across the membrane. In this research, the nucleotide binding domain (NBD) of CaABC gene was amplified by PCR, and the eukaryotic expression vector of pEGFP-C1-CaNBD was reconstructed. Then, the recombinant plasmid of pEGFP-C1-CaNBD was transformed into the mouse intestinal epithelial cells (IECs) to study the iron transportation function of CaABC. The results indicated that NBD region of CaABC gene can significantly elevate the transport efficiency of $Ca^{2+}$, $Mg^{2+}$, $K^+$, and $HCO_3{^-}$ in IECs (P<0.05). The significance of this study is to find the ATPase inhibitors for NBD region of CaABC gene and to inhibit ATP binding and nutrient transport of CaABC transporter. Thus, C. andersoni will be killed by inhibition of nutrient uptake. This will open up a new way for treatment of cryptosporidiosis.

• Management & Information Systems Review
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• v.22
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• pp.117-136
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• 2007

The characteristic of this study is to compare and analyze costing information from ABC cost accounting system after ABC cost accounting system is designed and implemented from the manufacturing company's traditional cost accounting system through field researches. This is different from previous researches which investigate surveys or adoption procedures and contents of some companies already adopting ABC cost accounting system. Statistically, differences between costing information are not really similar. However, the advantage of ABC cost accounting system is to reduce some activities which do not well contribute creating value after analyzing productions and supporting activities of the company, and dividing into two groups, activities creating value and non-creating value. Therefore, the cost accounting information of ABC cost accounting system is very useful system to offer valuable information for the management of the company. The accuracy of information of ABC cost accounting system depends on setting up the central point of activities and implementing cost drivers. In particular, when it comes to supporting activities, choosing cost accounting grivers which are highly relevant to producing products and collecting data for cost accounting drivers is really difficult. This is the limitation of this study. In other words, when implementing cost accounting drivers of ABC cost accounting system, aconceptual framework is different from applying to the real producing place. Therefore, when implementing on ABC cost accounting system, future researches are needed to find cost accounting drivers which are more close to the theoretical model, and implement ABC cost accounting system which can collects relevant data.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.33 no.4
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• pp.69-78
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• 2010

Multi-criteria ABC inventory classification is one of the most widely employed techniques for efficient inventory control, and it considers more than one criterion for categorizing inventory items into groups of different importance. Recently, Ramanathan (2006) proposed a weighted linear optimization (WLO) model for the problem of multi-criteria ABC inventory classification. The WLO model generates a set of criteria weights for each item and assigns a normalized score to each item for ABC analysis. Although the WLO model is considered to have many advantages, it has a limitation that many items can share the same optimal efficiency score. This limitation can hinder a precise classification of inventory items. To overcome this deficiency, we propose a context-dependent DEA based method for multi-criteria ABC inventory classification problems. In the proposed model, items are first stratified into several efficiency levels, and then the relative attractiveness of each item is measured with respect to less efficient ones. Based on this attractiveness measure, items can be further discriminated in terms of their importance. By a comparative study between the proposed model and the WLO model, we argue that the proposed model can provide a more reasonable and accurate classification of inventory items.

• Journal of Microbiology and Biotechnology
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• v.16 no.9
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• pp.1422-1428
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• 2006

An ABC transporter apparatus of the Gram-negative bacterial type I secretion pathway can be used as a secretory protein expression system in Escherichia coli. Four types of coexpression systems for the Pseudomonas fluorescens lipase gene, tliA, and its cognate ABC transporter gene cluster, tliDEF, were constructed. When the relative expression levels were changed by adding different concentrations of IPTG, the secretion (16.9 U/ml of culture) of TliA in E. coli [pTliDEFA-223+pACYC184] was significantly higher than E. coli [pKK223-3+pTliDEFA-184] secreting the lowest level of TliA (5.2 U/ml of culture). Maximal accumulation of the lipase secreted occurred in the mid-exponential phase, implying that the efficient protein secretion via an ABC transporter was restricted only to actively growing cells. Finally, the secretion level of TliA in E. coli [pTliDEFA-223+pACYC184] was increased to 26.4 U/ml by inducing gene expression at the culture initiation time. These results indicate that a significant increase in the ABC transporter-dependent protein secretion can be achieved by simply controlling the relative expression levels between the ABC transporter and its passenger protein, even in the recombinant E. coli cells.

• Proceedings of the KIEE Conference
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• 2000.07a
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• pp.504-506
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• 2000

In other advanced countries, an ABC-type distribution was employed few decades ago. It was, however, introduced, in this country, in late 1999. In order to apply it to the sites, several things have to be improved to comply with Korean distribution condition. It is very important to investigate the prospect and the problems in applying this type of distribution at site. To effectively employ it at site ASAP, follows have to be considered: easy installation of a transformer the development of branch gear, easy connections, the preventive diagnosis technique of insulating materials for ABC applications, etc. This paper describes the problems and the advanced plans of ABC-type distribution, and in construction.

• Journal of the Korea Safety Management & Science
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• v.16 no.1
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• pp.239-250
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• 2014

The purpose of this research is to implement and develop the Economic Cost Driver Size(ECDS) extended model to determine the optimal cash driver size with measurement complexity cost and allocation fail cost. ECDS model can be used to seek both measurement accuracy and time efficiency of the Activity-Base Costing (ABC). The study also develops Activity Priority Number (APN) to evaluate the importance of nonvalue-added activities improvement and to determine the representative cost driver of value-added activities when applying ECDS model. APN consists of Severity Priority Number (SPN), Undetectablitiy Priority Number (UPN) and Occurrence Priority Number (OPN). APN can be obtained from lower-stream activity, current activity, upper-stream activity in terms of hierarchical dependency of SIPOC (Supplier, Input, Process, Output, and Customer). In order to seek both efficiency of invested capital and reduction of overhead cost, the paper proposes the integrated ABC and Economic Value Added (EVA) model using redesigned ABC-based statement of comprehensive income and EVA-based statement of financial position. For a better understanding of the proposed ABC-EVA integrated model, numerical examples are demonstrated in this paper. Cost drivers of ABC and capital drivers of EVA in the proposed model can be used to reduce activity overhead cost from ABC-based statement of comprehensive income and to lessen activity capital charge from EVA-based statement of financial position.

• Journal of information and communication convergence engineering
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• v.17 no.4
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• pp.285-289
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• 2019

A 1.9-GHz linear CMOS power amplifier is presented. An adaptive bias circuit (ABC) that utilizes an AC ground to detect the power level of the input signal is proposed to enhance the linearity and efficiency of the power amplifier. The ABC utilizes the second harmonic component as the input to mitigate the distortion of the fundamental signal. The input power level of the ABC was detected at the AC ground located at the V_DD node of the power amplifier. The output of the ABC was fed into the inputs of the power stage. The input signal distortion was mitigated by detecting the input power level at the AC ground. The power amplifier was designed using a 180 nm RFCMOS process to evaluate the feasibility of the application of the proposed ABC in the power amplifier. The measured output power and power-added efficiency were improved by 1.7 dB and 2.9%, respectively.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.8 no.6
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• pp.2070-2086
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• 2014

As a kind of personal lifelog data, activity data have been considered as one of the most compelling information to understand the user's habits and to calibrate diagnoses. In this paper, we proposed a robust algorithm to sampling rates for human activity recognition, which identifies a user's activity using accelerations from a triaxial accelerometer in a smartphone. Although a high sampling rate is required for high accuracy, it is not desirable for actual smartphone usage, battery consumption, or storage occupancy. Activity recognitions with well-known algorithms, including MLP, C4.5, or SVM, suffer from a loss of accuracy when a sampling rate of accelerometers decreases. Thus, we start from particle swarm optimization (PSO), which has relatively better tolerance to declines in sampling rates, and we propose PSO with an adaptive boundary correction (ABC) approach. PSO with ABC is tolerant of various sampling rate in that it identifies all data by adjusting the classification boundaries of each activity. The experimental results show that PSO with ABC has better tolerance to changes of sampling rates of an accelerometer than PSO without ABC and other methods. In particular, PSO with ABC is 6%, 25%, and 35% better than PSO without ABC for sitting, standing, and walking, respectively, at a sampling period of 32 seconds. PSO with ABC is the only algorithm that guarantees at least 80% accuracy for every activity at a sampling period of smaller than or equal to 8 seconds.

• Korea Journal of Hospital Management
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• v.4 no.1
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• pp.96-128
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• 1999

This research has a purpose to develop strategies for application and introduction of activitiy based costing for Korean hospitals. A 700 bed-sized general hospital in Taejon was chosen to conduct this study. The conventional costing and ABC methods were simultaneously applied to the Obstetrics & Gynecology department, using data surveyed from June 21 to 30, 1998. The difference of two costing methods' results were analyzed and ABC's superiority was recognized. It showed that the new ABC model was more rational, fair, and objective in allocating indirect costs. The strategies to introduce ABC model to hospitals were suggested as followings: 1)a committee to manage ABC should be organized; 2)education for the employees about costing and cost saving should be provided; 3)the computerized ABC program should be developed; and 4)more advanced and rigourous methods to identify activities and measure the resource consumption should be developed.