Sung-Hyun Park

Silla that had been dependent on Kogury started to fight against it in the mid 5th century. It has been thought that the hostile relationship between them was not repaired and that the border had been the Sobaek mountains until the mid 6th century when Silla advanved into the Han River basin. However, it can be assumed that there was a peace treaty between them because there was no combat in the 1st half of the 6th century. The Koguryo Monument in Jungwon can be read as a memorial of the peace t

It is very important to produce military goods for customers, and a customer satisfaction index should be developed for quality control of military goods. Seoul National University and Defense Quality Assurance Agency jointly developed MCSI (Military Customer Satisfaction Index). In this paper the model of MCSI is explained, and the sampling design and survey method is introduced. Also a preliminary test was undertaken, and its result is briefly explained.

전 세계적으로 서비스 산업의 중요성은 더욱 부각되고 있다. 우리나라 역시 서비스 산업이 국내 GDP의 60%이상을 점유하는 만큼 서비스 산업의 중요성은 매우 크다. 그러나 우리나라의 서비스 산업의 생산성 및 경쟁력은 주요 선진국들에 비하여 매우 낮은 것으로 평가되고 있다. 이러한 생산성의 격차는 부가가치가 높은 핵심 지식서비스 산업 분야에서 더욱 커진다. 따라서 국가 경쟁력 제고 차원의 국내 서비스 산업의 경쟁력 강화가 필수적이다. 이와 관련, 최근 서비스 산업의 혁신을 위한 다양한 혁신 모델들이 연구되고 있다. 서비스 분야에서도 기존의 제조업 분야와 마찬가지로 생산성과 효율성을 증가시키기 위해 보다 과학적이고 체계적인 모델의 필요성이 제기되고 있다. 본 논문에서는 서비스 산업에서의 과학기술의 활용을 기반으로 한 혁신모델을 제시하기 위해서 기술경영의 관점에서 ‘전략적 서비스 혁신경영’의 모델을 제시하였다. 또한 이러한 모델을 바탕으로 기술혁신을 도입하여 기업의 성과를 크게 끌어올린

통계품질(statics quality)은 통계가 얼마나 사용자들이 이용하기에 적합한가를 나타내는 특성으로, 최근 선진국 및 국제기관들을 중심으로 높은 관심을 보이고 있다. 본 논문에서는, 통계품질관리의 개념, 통계품질의 척도, 통계품질관리의 8단계(조사기획, 표본설계, 조사표 설계, 조사원 훈련 및 자료수집, 조사결과 분석, 이용자 서비스, 사후관리 통계품질평가 및 관리)를 소개하고 표본조사통계를 위한 통계품질관리 가이드라인을 제시한다.

We investigated the effects of RTA (rapid thermal annealing) on Ge epitaxial layers grown on Si(001) substrates. We found that a high RTA temperature of up to 800 C was more effective in reducing the threading dislocation density (TDD) in the Ge layer because dislocations with higher velocities were more easily annihilated with each other at higher temperatures. We also found that the TDD was reduced by using RTA at 800 C, leading to improved crystallinity. As the number of RTA cycles was increa

In Response Surface Methodology (RSM), rotatability is a natural andhighly desirable property. For second order general correlated regressionmodel, the concept of robust rotatability was introduced by Das (1997). Inthis paper a new measure of robust rotatability for second order responsesurface designs with correlated errors is developed and illustrated with anexample. A comparison is made between the newly developed measure withthe previously suggested measure by Das (1999).

The real estate management includes not only the brokerage, property management, development, investment and consulting which are related to real estate handling, but also the human resources who deal with the real estate business. The level of management quality of Korean real estate business is rather poor. This paper deals with management innovation of real estate management using Six Sigma methodology. The main focus of this paper is to develop strategy planning, and is to select critical su

Since the Soviet Union collapsed, Russian films have obviously reflected a rapidly changing Russian society - its social phenomena, mass consciousness, psychological conditions, and reactions to globalization etc. Films can be a useful cultural code for analyzing the state of chaos and panic Russia is in now during its period of transition to capitalism, and revealing its significance. In particular, we can find that the identity problem of post-Soviet Russian society has been reflected in many

Evolutionary operation (EVOP) proposed by Box (1957) is a methodfor continuous monitoring and improvement of a full-scale manufacturingprocess with the objective of moving the operating conditions toward thebetter ones. EVOP consists of systematically making small changes in thelevels of the two or three process variables under consideration. Data arecollected on the response variable at each point of two level factorial designwith the center point and a cycle is said to have been completed. The

Kim(2002) proposed a second type of central composite design in which the positionsof the axial points are indicated by two numbers, and called it CCD2. In the presentpaper, we have studied CCD2 further and obtained several new facts. We have obtainedCCD2's that have both orthogonality and rotatability, both orthogonality and sloperotatability, and both rotatability and uniform precision. We also have applied Parkand Kim's (1992) measure of slope rotatability to such CCD2's and observed some

We investigated the effect of a slight tilt of an r-plane sapphire substrate on the morphological properties of a-plane GaN grown by using metal-organic chemical vapor deposition. The tilt angle of the r-plane sapphire was varied from 0˚ to -0.65˚ toward the c-axis of sapphire. Slight tilt angles of the r-plane sapphire toward the c-axis of sapphire ranging from 0˚ to -0.37˚ were found to be suitable for growing triangular pit-free a-plane GaN with a microscopically smooth surface. Tilt angles l

a second order design for response surface model is aected by block eectsand how the design points are assigned into the blocks so that the blockeddesign may have the property of slope-rotatability. If an unblocked esign isblocked properly, it could be a slope-rotatable design with block eects andfrom the moment matrix of the blocked design, which plays an importantrole to get the variances of the estimates, and suggest conditions of blockslope-rotatability.AMS 2000 subject classications.Primary

This paper proposes a simple control chart method which can be practically usedfor asymmetric process data where the distribution is unknown. If we use the Shewharttype control charts which are based on normality assumption for the asymmetric processdata, the type I error could increase as the asymmetry increases and the eectiveness ofcontrol chart to control variation decreases. To solve such problems, this paper suggeststo calculate the control limits based on the quartiles. If we obtain the c

Slope rotatability of response surface designs is a desirable property when we are interested in estimating slopes of response surfaces. In this paper, we derive a simplified measure of slope rotatability from new viewpoints for response surface designs that are frequently used in response surface methodology.