• Information Systems Review
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• 제18권2호
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• pp.1-22
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• 2016

In response to changes in the global market environment, companies in the Information and Communications Technology (ICT) industry have begun to pursue cooperation and competition on a business ecosystem level. In particular, to become a leader in the new growth engine industry of Internet of Things (IoT), companies around the globe aim to consolidate vertically up the value chain through a solid establishment of their platforms. This paper looks at Samsung and Xiaomi, whose strategies for creating an ecosystem based on their own platforms differ in accordance to the ecosystem in which they compete. An analysis of these two companies indicate that Samsung pursues a strategy to become the market standard by openly sharing its platform with complementary companies, whereas Xiaomi pursues a strategy that achieves value as a channel owner through the restriction on which companies may become partners. This paper concludes that as Samsung and Xiaomi strive to become IoT industry leaders, each company pursues a variant of a platform-based value chain integration strategy based on the specific nature of the ecosystems in which they compete, thereby creating value through a symbiotic relationship with their partner companies.

• Journal of dental hygiene science
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• 제4권2호
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• pp.61-73
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• 2004

In this study, I have analyzed domestic dental clinics which had introduced CRM for customer satisfaction management. The purpose of this study is to provide information for designing efficient CRM. I would suggest some strategies to carry out CRM as followed. First, promote long-term relationship with customers. Second, select a target patient group and classify customers. Third, set a systematic database up. Fourth, make various channels to communicate with customers. In addition, the following ways are essential to be successful in implementing CRM. First, strengthen the service provided at the Moment of Truth (MOT). Second, organize learning in hospital and all the staff should be customer-oriented. Third, perform systematic "internal marketing".

• Korean journal of applied entomology
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• 제36권2호
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• pp.145-149
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• 1997

Occurrence pattern of major insect pests on 7 recommended potato cultivars in Korea was investigated from sowing to harvesting time at Kangneung and Daegwallyung experiment fields in 1996. Green peach aphid (Mym persicae Sulzer), potato aphid (Macrosiphum euphorbiae Thomas) and beet armyworm (Spodoptera enigua Hubner) were the major insect pests on potato leaves, and wireworm (Selatosomus puncticollis Mot.) was the major pest on tubers. There was a slight difference of average number of aphids per 50 leaves among cultivars; ranged from 22.7 on cv. Dejima to 46.3 on cv. Superior. Numbers of leaves damaged by beet armyworm larvae on cv. Shepody and cv. Jopung were 11.0 and 14.3, and these cultivars are thought to be resistant against the larvae infestation. However, degree of damage on cv. Dejima and cv. Namsuh was higher 10 times than cv. Shepody and cv. Jopung. In wireworm, the percentage of damaged tubers on cv. Irish Cobbler was lowest of 8.1%, and followed by cv. Superior, cv. Dejima, cv. Jopung, and cv. Atlantic. Whereas, those on cv. Namsuh and cv. Shepody were significantly high of 50.0% and 46.8%.

• Proceedings of the KOSOMBE Conference
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• 대한의용생체공학회 1996년도 춘계학술대회
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• pp.199-202
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• 1996

Artificial hearts are intended for use in patients with severe forms of heart disease for which no surgical repair is possible. The moving-actuator pump was developed to decrease the overall volume size of the electromechanical total artificial heart (TAH) by eliminating the occupied space of the fixed-actuator in the conventional pusher-plate type pump. In our pump, the actuator moves back and forth for alternative ejections of left and right ventricles. The problem of fitting the TAH to atrial remnants and arterial vessels could also be improved by circular or penduluous mot ion of the actuator instead of linear mot ion of the pusher-plate in the conventional pumps. We have evaluated two types of moving- actuator pump; one is a rolling cylinder type, and the other a pendulum type pump. In the rolling cylinder pump, frictional energy loss exists between the pump housing's guide bars and the actuator's end caps, while the bottom rack under the cylindrical actuator increases the height of the pump, the pump is therefor not implantable inside the small chest of human-sized animals with a body weight of less than 70kg. The new human type pump has a penduluous mot ion actuator to correct the above problems while maintaining the advantage of the moving- actuator's small total volume. The totally implantable TAH is composed of a blood pump, a control system and pheriperal equipments. The blood pump, which is constructed by a moving actuator, a right and left blood sac, and four artificial valves, is implanted in the thoracic. In 1988, the first implantation of the rolling cylinder TAH was performed into a female calf weighing 100kg, and the cal f recovered to the degree of voluntary standing and eat ing and survived to 100 hrs. We then survived two female sheep weighing about 63kg with the new human type TAH for three days.

• Steel and Composite Structures
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• 제49권2호
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• pp.245-255
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• 2023

The present paper summarizes the results of an experimental program on the influence of using waste lathe scraps in the concrete mixture on the shear behavior of RC beams with different amounts of shear reinforcement. Three different volumetric ratios (1, 2 and %3) for the scraps and three different stirrup spacings (160, 200 and 270 mm) were adopted in the tests. The shear span-to-depth ratios of the beams were 2.67 and the stirrup spacing exceeded the maximum spacing limit in the building codes to unfold the contribution of lathe scraps to the shear resistances of shear-deficient beams, subject to shear-dominated failure (shear-tension). The experiments depicted that the lathe scraps have a pronounced contribution to the shear strength and load-deflection behavior of RC beams with widely-spaced stirrups. Namely, with the addition of 1%, 2% and 3% waste lathe scraps, the load-bearing capacity escalated by 9.1%, 21.8% and 32.8%, respectively, compared to the reference beam. On the other hand, the contribution of the lathe scraps to the load capacity decreases with decreasing stirrup spacing, since the closely-spaced stirrups bear the shear stresses and render the contribution of the scraps to shear resistance insignificant. The load capacity, deformation ductility index (DDI) and modulus of toughness (MOT) values of the beams were shown to increase with the volumetric fraction of scraps if the stirrups are spaced at about two times the beam depth. For the specimens with a stirrup spacing of about the beam depth, the scraps were found to have no considerable contribution to the load capacity and the deformation capacity beyond the ultimate load. In other words, for lathe scrap contents of 1-3%, the DDI values increased by 5-23% and the MOT values by 63.5-165% with respect to the reference beam with a stirrup spacing of 270 mm. The influence of the lathe scraps to the DDI and MOT values were rather limited and even sometimes negative for the stirrup spacing values of 160 and 200 mm.

• Proceedings of the IEEK Conference
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• 대한전자공학회 2001년도 하계종합학술대회 논문집(4)
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• pp.261-264
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• 2001

In this paper, we introduce a simple design method f9r mot-squared type raised cosine filter with equiripple characteristics. Through some design examples, we show that the proposed filter has much better performance in ripple than the conventional SRCF at the expense of small increasing of ISI. In addition, the proposed Inter is compatible with conventional SRCF. Finally, we designs the filter for W-CDMPI which uses RRC (Root Raised Cosine) with a=0.22, in 12bit finite precision.

• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 2002년도 봄 학술발표논문집 Vol.29 No.1 (A)
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• pp.157-159
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• 2002

본 논문에서는 신세 자인의 개발 전에도 망 관리 시스템의 개발 및 운용 테스트를 수행하도록 지원하는 실제 자원 시뮬레이터(RRS: Real Resource Simulator)를 소개한다. RRS는 객체의 상태를 유지하는 MOT(Managed Object Table)와 사용자가 정의한 동작 특성을 유지하는 SDT(Simulation Data Table), 랜덤(random) 값과 랜덤 주기(interval) 값을 발생할 지인 함수들, 순차적인 사건 발생 또는 값의 수정을 지원하는 스케줄링 테이블, 그리고 이들을 전체적으로 관장하는 메인 커널로 이루어져 있다. 본 논문에서는 구현된 RRS의 전체 동작과 테스트를 목적으로 만든 RRS의 운용 화면을 소개한다.

• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 2003년도 봄 학술발표논문집 Vol.30 No.1 (B)
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• pp.606-608
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• 2003

본 논문에서는 사용자가 제공하는 2차원의 캐릭터 스케치를 3차원의 시각적 이야기 저작 시스템의 아바타로 활용하기 위해, 어린이들이 종이 인형을 가지고 굽히거나 펴서 동작을 만들며 놀이를 하던 방법을 입력 매타포어로 사용하는 것을 제안하였다. 2차원 영상을 3차원화 하는 기존의 연구들은 카메라 파라미터의 복원 등 복잡한 시스템을 필요로 하며 일반 사용자가 이야기 저작시 쉽게 적용하기 어려운 데 반해, 본 메타포어를 기반으로 한 시스템은 정교하지는 않으나 일반인이 쉽게 이해할 수 있는 아바타 제어 방법을 제공한다.

• Proceedings of the Korea Contents Association Conference
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• 한국콘텐츠학회 2011년도 춘계 종합학술대회 논문집
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• pp.455-456
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• 2011

고객의 요구사항 다양화 및 콜서비스 요청의 지속적인 증가로 서비스 접점(MOT)의 중요성이 크게 확대되고 있으며, 이는 산업과 업종에 관계없이 모두가 동일한 현안사항을 가지고 있다. 콜량의 예측을 통해 적정인원을 산출하여 실제로 인입되는 콜량과 예측된 콜량을 트래킹하여 예측과 실제의 갭을 최소화하는 것으로 고객만족도 향상에 성패를 좌우한다. 양질의 상담 서비스 제공과 운영 사업비의 효율화는 우리 모두의 관심이자 동시에 해결해야 할 과제이다. 본 연구는 콜센터의 ARS 운영현황과 시장 동향 분석 및 ARS 운영기관 실태점검 및 평가를 통하여 효율적인 운영전략을 모색하고자 한다.

• Communications of the Korean Mathematical Society
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• 제17권1호
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• pp.81-93
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• 2002

We consider the Hausdorff measure for Brownian motion(BM) in ι$_2$. Several path properties of BM in ι$_2$ are used to show the upper bound of Hausdorff measure. We also show the lower bound of it applying a law of iterated logarithm for the occupation time of BM in ι$_2$.