High-Tech Textiles
1. Smart flame-resistant textile
1) 배경
IED(Improvised Explosive Deviced:급조폭발물)로 인한 사상자발생으로
화염방지의 필요성을 절감하였다.
2) Nomex®
듀퐁사에서 1960년대 초반에 개발한 Aromatic polyamid(aramid) fiber로 1967년부터 상업적으로 생산되기 시작. 지금은 화염방지 소재에 있어 하나의 명
Trials, combining text terms and MeSH terms for vitamin E and stroke
limited search
humans, clinical trials, randomised controlled trials, meta-analyses, and systematic reviews
Methods
Study selection
Randomised, placebo controlled design with a follow-up of ≥1 year
Investigating the effect of vitamin E on stroke incidence
do not include trials of multivitamins or fixed vitamin combinations
Protect underlying tissues from injury: mechanical, heat, cold, biological
Prevent excess water loss
Act as a temperature regulator
Serve as a reservoir for food and water: adipose tissue
Serve as a sense organ for cutaneous senses: pain, heat, cold, pressure, touch
Prevent entrance of foreign bodies: microorganisms.
Epidermis
Keratinocytes, melanocytes
About 0.2mm thickness
Provide v
1. Definition and Types of the Veil
1. 1 Definition of the Veil
Veil is a decoration for showcase or protection. And it hides the face, head and whole body. Most of the scholars, veil has seen to be derived from Mesopotamia and Persia, and is one that existed from the most ancient in the women's clothes. According to Korean, it is considered to the production of cotton, but that made of various
폐수처리 방법 및 시설
● 폐수의 공정별 분류
① barker 폐수 ② 증해폐수 ③ 표백시 폐수 ④ 초지폐수
● 오탁성분 또는 성질
① 부패성 유기물(BOD) ② 환원성 물질(COD) ③ 부유물질 ④ 색 ⑤ 냄새
처리의 기본적인 목적
① 고액 분리(SS제거)
② 유기성, 환원성 물질의 산화(BOD, COD의 감소)
③ pH의 조정(중