In this paper, the verification is conducted to confirm the effect of the level of informatization on the performance of the company. In order to accomplish this research objective, we draw out key factors in company's informatization level and sustainability, performance by examining previous studies. And we identify the impact of informatization on sustainability, and then analyze the relationship between sustainability and performance. In order to carry out such research, a conceptual research model was designed and we designed the hypotheses based on the research model that we want to verify and confirm it through case studies. From the research result, we present the direction of software company's informatization in the future for company performance and identify what factor of informatization plays an important role in software company's sustainability management.

The demand against the OH&S (Occupational Health and Safety) from the companies or the agencies which operate an management system is increasing. ISO 45001 was established by ISO (International Organization for Standardization). This standard is international and authoritative standard of OH&S. Also this standard provides guidance for the use of the organization to improve occupational health and safety performance by preventing occupational accidents and diseases. This paper is to review how the OHSAS 18001:2007 to ISO 45001:2018 focusing on reasons for transitions. Additionally, Therefore, this paper shows case study for understanding ISO 45001:2018 implementation.

This paper addresses the analysis of the retrieval lead time of the storage/retrieval(S/R) vehicle within an aisle when items are picked up by the batch size in a warehouse system. Batch size retrieval is to combine several orders in a single tour of the S/R vehicle within an aisle. An advantage of batch size retrieval is that the length of a tour for a batch of orders is shorter than the sum of tour lengths of the individual orders. The plan batch size is the number of items considered in a retrieval plan for retrieval of items from storage cells of the warehouse. The retrieval batch size is the number of items included in a single tour. The items included the plan batch size are retrieved from storage cell by the retrieval batch size. In case that the plan batch size is divided and retrieved by the retrieval batch size, the probability that each storage location row of the rack will be the location of the multiples of retrieval batch size is analyzed. The average travel distance and the retrieval lead time are analyzed for the plan batch size and the retrieval batch size. A problem is analyzed and the mathematical model is formulated, and a numerical example is showed to explain the solution procedure.

E-government initiatives have been carried out around the world, which offer wide chances to deliver the variety of services more efficiently to their citizens. The success of such e-government services relies on both government support and users' adoption. This study chooses the UTAUT(Unified Theory of Acceptance and Use of Technology) model and modified the initial UTAUT model by including data security and legal environment to explore factors influencing the e-government adoption in Mongolia. Data were collected from 104 respondents who were interested in Mongolia's e-Government. The research results show that the e-government adoption in Mongolia is affected by effort expectancy, facilitation conditions, legal environment, data security, and behavioral intention. Nevertheless, performance expectancy was not significant on behavioral intention. This study provides suggestions for policy makers in order to improve e-government adoption.

One of the tests for diagnosing of lesions in the stomach is a gastrointestinal series. This test uses computed radiograph (CR) and digital radiography (DR) fluoroscopy equipment. Therefore, the purpose of this paper is to propose improvement of the working environment based on the results through the ergonomic evaluation with CR and DR fluoroscopic equipment in gastrointestinal examinations. Observing the operator's inspection process, the ergonomic assessment methods, rapid upper limb assessment (RULA) and ovako working-posture analysis system (OWAS) were applied to quantify the problematic working posture. As a result, the evaluation result of the RULA of CR fluoroscopy equipment was an action level of 4, which required immediate improvement. The assessment result of OWAS was evaluated to require a managed improvement of level 2 at the start and end points, respectively. On the other hand, the evaluation result of the RULA of DR fluoroscopy equipment was an action level of 1 without a problem and excluded the evaluation of OWAS because without a problem and a sitting position process. As a way to improve the working environment, a 25cm high footrest was installed and a 40cm high support was installed at the starting point. After the improvement, the evaluation results of the RULA improved to 2 for action level. Assessment result of OWAS was evaluated as normal work positions at Level 1 at the start point improved more than before, but it was level 2 at the end evaluated the same as before.

In this paper, we proposed a support vector regression model in order to predict the time series of the power energy consumption. Based on the finding that the time series of the power consumption contained a considerable amount of the non-linear correlation, we adopt the support vector regression as the model for the prediction of the power consumption. By tuning two parameters in the model and performing the cross validation, we demonstrated that the proposed model predicted the power consumption with the relative errors and the average errors in the range of 2%-5% and 3kWh-8kWh, respectively. We also support the validity of the model by analyzing the multi-step forecasting. The results of this study can be used to the energy management system in terms of the effective control of the electric energy.