1. Introduction
1) Definition of preservation and food-spoilage micro-organisms
Food preservation is the process of treating and handling food to stop or greatly slow down spoilage (loss of quality, edibility or nutritive value) caused or accelerated by micro-organisms. Some methods, however, use benign bacteria, yeasts or fungi to add specific qualities and to preserve food (e.g., cheese, wine
Treat of Potential Entrants
최근 PMP와 휴대폰의 기술 진화
지금까지는 경쟁자로서 여겨지지 않았던 휴대폰 제조회사나, PMP 제조회사 등이 잠재적인 경쟁자가 될 수 있음.
하지만 PC의 기능을 많은 부분 대체하려는 노력이 있을 뿐, 아직 그 기능을 완전 대체하는 제품은 등장하지 않음.
Intensity of Ri
Sewage that has been aerated
and agitated in order to promote the growth of beneficial microorganisms that break down organic matter.
The activated-sludge process is a
biological method of wastewater treat-ment that is performed by a variable and mixed community of microorganis-ms in an aerobic aquatic environment.
Purpose: to remove settleable organics and floating scum (gr
2.KEY ISSUES
(1) CEO의 리더쉽 및 비젼
SIS는 처음부터 경쟁우위를 목표로 계획•개발•운영되는 system이다. 따라서 SIS가 성공하기 위해서는 최고 경영자의 강한 Leadership이 필수 조건이다. 즉 CEO는 시스템을 통괄하는 CIO는 물론 각 COO(Chief Operation Officer)에 대해서도 가치사슬에 의한 비즈니스 통합
Flow around and through fish gills
Jeesoon Choi and Dongyeop Baek
School of Mechanical and Aerospace Engineering, Seoul National University
Abstract. An overall view of the flow over the fish gills is first described by using the active pump system and the passive ram ventilation. The concept of ram ventilation is introduced and its merits of reducing hydrodynamic drags and efficient e