This study investigates the size marking differences in domestic and international cycle wear brands offered in Korea and provides basic material to develop a size system for cycle wear suitable for the Korean somatotype. Study methods include size systems suggested in the web-sites of domestic and international cycle wear brands offered in Korea. Brands used for the study included 8 brands (3 domestic brands, 2 Italian brands, 1 Australian brand, 1 Swiss brand and 1 Japanese brand). The results of this study were as follows. Domestic brand A company marked the size from 85 to 110 based on height(cm) and weight(kg) and indicated the actual size of the product for customers to refer to. Domestic brand B company marked the size from ES:85 to 2XL:110 based on height(cm) and weight(kg), Domestic brand C company marked unisex size from XS to XXL based on weight(kg) and height(cm) and waist circumference(inch)with a separately marked women size XS-M. Italian brand, D company marked size from S-4XL for men based on height, chest, waist, hip circumference size(cm) and XS-2XL for women. Italian brand F company marked size from S-3XL for men and XS-XL for women based on chest, waist and hip circumference size(cm). Japanese brand G company marked size fromS-3L for men based on height, chest, waist circumference size(cm) and S-XL for women based on height, chest, waist and hip circumference size(cm). Australian brand H company marked sizes as XS-XXL based on chest circumference size(cm) for upper clothes for men and for women XXS-XL. For bottom clothes, they marked sizes XS-XXL for men based on waist circumference size(inch) and XXS-XL for women based on waist and hip circumference size(inch). Swiss brand, I company marked men sizes as XS-XLG and TIR based on a chest circumference size(cm) based on height(cm) for bottom clothes and chest circumference size(cm) for upper clothes with XS-XL for women based on a hip circumference size(cm) for bottom clothes and chest circumference size(cm) for upper clothes. In conclusion, domestic brands have a wide range of sizes and utilize a range of weight against height to cover various body somatotype. The Italian brand indicated that S size is bigger than other brands when it comes to deviation and a relatively small size tolerance with each size. Japanese brands have a well-organized size system based on height and basic body measurements. Australian brand are variously distributed without regular dimension tolerances for each size and Swiss brands have bigger round sizes. The investigation of size marking for domestic and international cycle wear showed that cm and inch are combined and that each country has a different size system with significant difference in dimension and size deviation. Thus, there is a need to establish standards and develop a domestic size system for international cycle wear and the purchase of overseas brands. However, it has the limitation in generalization of results because there is a little investigation brand.

레일마모는 열차의 주행안전 및 승차감에 미치는 영향이 크고, 소음․진동의 주요원인으로 작용한다. 또한 레일마모가 발생할 경우 궤도구조의 파괴를 촉진시킴으로써 차량 및 궤도유지보수비를 크게 증가시킨다. 따라서 현장에서 발생하는 마모 원인을 체계적으로 분석함으로써 마모를 저감할 수 있도록 차량운행 조건과 선로선형 및 궤도구조를 설계하는 것은 중요한 과제이다. 본 연구에서는 궤도의 효율적인 유지관리를 위해 궤도를 구성하고 있는 레일, 체결구, 침목, 도상 등의 요소를 고려하여 레일 궤도의 생애주기 거동 및 유지관리 특성을 분석하였다. 또한 축적된 진단/검측 데이터로부터 궤도 구성품의 건전도를 평가할 수 있는 방법을 정립하고 잔존수명을 예측하여 효율적 유지관리를 실현할 수 있는 기법 개발을 위하여 지하철 레일단면마모데이터를 이용한 구간 특성에 따른 시간-마모량의 확률적 분포 변화와 다중회귀 분석을 수행하였다.