김종국 교수

This paper proposes an adaptive image enhancement method for mammographic images, which is based on the first derivative and the local statistics. The adaptive enhancement method consists of three processing steps. The first step is to remove the film artifacts which may be misread as microcalcifications. The second step is to compute the gradient images by using the first derivative operators. The third step is to enhance the important features of the mammographic image by adding the adaptively

An ad hoc grid is a wireless heterogeneous computing environment without a fixed infrastructure. This study considers wireless devices that have different capabilities, have limited battery capacity, support dynamic voltage scaling, and are expected to be used for eight hours at a time and then recharged. To maximize the performance of the system, it is essential to assign resources to tasks (match) and order the execution of tasks on each resource (schedule) in a manner that exploits the hetero

In a distributed heterogeneous computing system, the resources have different capabilities and tasks have different requirements. To maximize the performance of the system, it is essential to assign resources to tasks (match) and order the execution of tasks on each resource (schedule in a manner that exploits the heterogeneity of the resources and tasks. The mapping (defined as matching and scheduling) of tasks onto machines with varied computational capabilities has been shown, in general, to

An ad hoc grid is a wireless heterogeneous computing environment without a fixed infrastructure. The wireless devices have different capabilities, have limited battery capacity, support dynamic voltage scaling, and are expected to be used for eight hours at a time and then recharged. To maximize the performance of the system, it is essential to assign resources to tasks (match) and order the execution of tasks on each resource (schedule) in a manner that exploits the heterogeneity of the resourc

In a distributed heterogeneous computing environment, users' tasks are allocated resources to simultaneously satisfy, to varying degrees, the tasks' different, and possibly conflicting, quality of service (QoS) requirements. When the total demand placed on system resources by the tasks, for a given interval of time, exceeds the resources available, some tasks will receive degraded service or no service at all. One part of a measure to quantify the success of a resource management system (RMS) in

2 Abstract When users' tasks in a distributed heterogeneous computing environment are allocated resources, and the total demand placed on system resources by the tasks, for a given interval of time, exceeds the resources available, some tasks will receive degraded service, receive no service at all, or may be dropped from the system. One part of a

In a distributed heterogeneous computing environment, users' tasks are allocated resources to simultaneously satisfy, to varying degrees, the tasks' different, and possibly conflicting, quality of service (QoS) requirements.When the total demand placed on system resources by the tasks, for a given interval of time, exceeds the resources available, some tasks will receive degraded service or no service at all.One part of a measure to quantify the success of a resource management system (RMS) in s

Nonlinear fiber devices have been attracting considerable attention in recent years, due to their inherent ultrafast response time and potential applications in optical communication systems. They usually require long fibers to generate sufficient nonlinear phase shifts, since nonlinearities of conventional silica-core silica-clad fibers are too low. These long devices, however, cause the serious problems of pulse walk-off, pulse broadening, and polarization fluctuation which are major limiting

논문은 공리주의와 칸트 도덕철학 간의 쟁점을 다루고 이를 통해 양자의 정체성을 분명하게 드러내려는 목적을 갖는다. 밀의 칸트 비판과 더불어 칸트의 기획을 공리주의로 환원하려는 시도가 꾸준히 있어 왔다. 논문은 이런 시도들을 도덕의 판정원칙(무엇이 옳은 행위인가)과 도덕의 실행 원칙(왜 옳은 행위를 행해야만 하는가)의 순서로 살펴보고 이에 대한 칸트적 응답을 대응시킨다. 판정론과 관련해서는 먼저 ‘최대 행복’과 ‘의무’ 간의 쟁점이, 다음으로 ‘합리적 선호’와 ‘순수 의지’ 간의 쟁점이 분석된다. 동기론과 관련해서는 ‘공리주의적 공감’과 ‘칸트적 의무감(양심의 감정)’의 특성이 그 객관적 근거인 공리와 의무와 관련하여 해명된다. 이상의 고찰을 통해 가치론 및 의지론 그리고 동기론 상에 있어 ‘보편주의 윤리학의 양대 기획인 목적론과 의무론’의 동일성과 구별성이 규명된다. 아울러 이러한 목적론과 의무론의 대립이 ‘라이프니츠-볼프 도덕철학에 대한 의지주의적 자연법주의자들의 비판’으로 소급된