Background: We have developed the Korean safety ladder as part of development of new safety technologies that can be accepted in industrial sites and would like to introduce the testing process to secure safety. Methods: The test load and horizontal force prescribed by ANSI A14.7 and EN131-7 standards for only the overturning stability test were applied to calculate the weight required for securing overturning stability according to standards and installation of outrigger with the variables of the height of platform, the angle of inclination of the worker, and the size of the platform. Results: The weight of a Korean safety ladder required for securing overturning stability according to the height is as follows: as mentioned by the ANSI A14.7, it is stable regardless of the weight when an outrigger. By the EN131-7 standard, a 5-step ladder is stable regardless of the weight, but 54 kg or more of weight is required for an 8-step ladder when an outrigger is installed. When there is no outrigger, 122 kg and 251 kg are required for 5-step and 8-step ladders, respectively. Conclusion It is necessary to restrict inclined working on the platform at less than 66° of inclination angle by the EN131-7 standards and secure 43 kg or more of weight in the minimum width of a platform of 400 mm or expand the ladder width or open length of the outrigger.

OBJECTIVES: The purpose of this study was to review an implementation of u-Severance information system with focus on electronic hospital records (EHR) and to suggest future improvements. METHODS: Clinical Data Repository (CDR) of u-Severance involved implementing electronic medical records (EMR) as the basis of EHR and the management of individual health records. EHR were implemented with service enhancements extending to the clinical decision support system (CDSS) and expanding the knowledge base for research with a repository for clinical data and medical care information. RESULTS: The EMR system of Yonsei University Health Systems (YUHS) consists of HP integrity superdome servers using MS SQL as a database management system and MS Windows as its operating system. CONCLUSIONS: YUHS is a high-performing medical institution with regards to efficient management and customer satisfaction; however, after 5 years of implementation of u-Severance system, several limitations with regards to expandability and security have been identified.
Database Management Systems ; Electronic Health Records ; Electronics ; Electrons ; Hospital Records ; Information Systems ; Knowledge Bases