• Korean Journal of Organic Agriculture
• /
• v.19 no.spc
• /
• pp.6-8
• /
• 2011

In order to produce the organic foods in accord with international standard, organic seeds should be used in organic farming. This study was conducted to establish the stable production of organic seed of waxy com by examining the growing characteristics, seed yield, and the economy for seed production by organic farming. The optimal sowing timing for organic seed production of waxy com hybrid was within 10 days of the $1^{st}$ of May with yield of 88~90% of conventional seed production. The optimal planting density was 41,600 plants/ha ($80{\times}30$ cm) for organic seed production of waxy com. The weight of 100 seeds and seed productivity increased at the planting ratio of 2:1 mother plant:male plant. Growth and seed production were improved by removing male plant at 7~10 days after silking. Organic fertilizer (mixed oil cake) was applied at a rate of 4~6 Mg/ha before sowing. Black plastic mulching was used for weed control. In addition, sex pheromone trap and bio-control agents were used for safe pest control and low labour cost.

• Journal of Information Technology Services
• /
• v.20 no.2
• /
• pp.111-126
• /
• 2021

A Kano model was used to classify the quality attributes of the service robot function for actual deployment that can support and replace bank employees. Quality attributes for a total of 6 dimensions and 23 service elements were divided into bank employees and customer groups, and service priorities were derived after comparative analysis. The Decision tree model was used to supplement the excessive simplification of quality attributes by the modest number of Kano models and to classify and predict by segment market. Of the 23 services, 16 were classified into the same attributes in both groups. 6 services classified as combination attributes used a Decision tree to identify differences in perception of quality attributes among groups. In terms of basic financial services and professional financial services, it was confirmed that bank employees feel financial service robots more attractive than ordinary customers. In the design of IT convergence service, we propose a methodology for deriving quality attributes by combining a Kano model for classifying quality attributes of two groups and a Decision tree for forecasting subdivision markets.

• International Journal of Advanced Culture Technology
• /
• v.8 no.1
• /
• pp.38-43
• /
• 2020

This study examines the factors affecting the usage and diffusion of mobile easy payment services which is fast growing industry recently. After wide reviewing previous research about mobile payment, Some factors are identified as the factors influencing intention to use mobile easy payment services-confidence, innovativeness, mobile self-efficacy, relative advantage- through several mediating factors- perceived ease, perceived usefulness, perceived risk. Empirical study for a research model showed confidence, mobile self-efficacy and relative advantage are effective to the intention to use mobile easy payment services via perceived usefulness and perceived risk. Based on the results of the study, some practical implication for customer retention and acquisition are suggested.

• Korean Management Science Review
• /
• v.25 no.3
• /
• pp.87-99
• /
• 2008

Besieged by needs for upgrading the current Internet, social pressures, and regulatory concerns, a network operator may be left with few options to Improve his services. Yet he can still consider a transition prioritizing network services. In this paper, we describe a transition from a non-priority system to a prioritized one, using non-preemptive M/G/1 model. After reviewing the constraints and theoretical results from past research, we describe steps making the transition Pareto-improving, which boils down to a multi-goal search for a Pareto-improving state. We use a genetic algorithm that captures actual transition costs along with incentive-compatible and Pareto-Improving constraints. Simulation results demonstrate that the initial post-transition solutions are typically Pareto-improving. for non Pareto-improving solutions, the heuristic quickly generates Pareto-improving and incentive-compatible solutions.

• Journal of Information Technology Services
• /
• v.7 no.2
• /
• pp.223-242
• /
• 2008

We assess service delivery system for outpatients of general hospital(A) using service blueprint. Service blueprint for outpatients' service process currently being implemented in general hospital(A) is analysed to improve hospital services and define hospital service delivery system more accurately. In addition, comparative analysis of service blueprint between before and after improvement is conducted to find that health care services Is now more customer-oriented and hospital employees can link their duties to service delivery system. Dealing with the efficiency of health care service delivery system based on service blueprint analysis is expected to pave the way for continual service quality improvement of general hospitals in the future. The analysis of service blueprint of outpatients' service process suggested in this study is useful for setting strategies for health care service. It also helps service process design and service digitalization of other general hospitals in the future.

• Journal of Families and Better Life
• /
• v.17 no.1
• /
• pp.73-86
• /
• 1999

The aim of this study is to suggest theoretical foundations on which hospital employees could estimate medical care services not in the position of providers but consumers. For this purpose this study compares satisfaction of providers but consumers. For this purpose this study compares satisfaction of patients with medical care service with that of hospital employees. 287 patients and 261 employees in three university hospitals in Daegu were selected as samples of investigation and asked questions. Statistical analysis was taken using SAS package. The result of this study are as follows. 1) Among the five fields of medical services patients and hospital employees have different views in doctor hospital staff(except doctor) treatment system availability service but parking service 2) Hospital employees overestimate the level of medical care services compared with patients 3) Demographical variables make a difference in medical satisfaction 4) In satisfaction-evaluation after r ceiving treatment medical system service is influential variables in both patients and hospital employees. And in patient group doctor service is following variables while availability and parking service is influential variables in employees.

• Journal of Families and Better Life
• /
• v.15 no.4
• /
• pp.81-102
• /
• 1997

This study intended to investigate factors shaping the styles for comsumers to express their dissatisfaction after comsuming goods(cloth and household appliance) and services(public and health) In particular this study examined what kinds of characteristics were crucial to distinguish three styles of consumers' and public complaints. The characteristics of consumer to be considered in this study included consumer knowledge consumer attitude consumer and several socio-economic characteristics. The sample used in this study were consumers whose age was grater than 20 years old living near Seoul in 1996. Discriminant analysis was conducted to investigate what factors discriminate the style of complaint. This study found that several consumer characteristics were sigificant in explaining different styles for consumers to response their dissatisfactions. The effects of consumer characteristics were more significant in explaining the complaining styles derived from public and health services rather than goods. Overall consumer attitude consumer knowledge and the degree of satisfaction of services were discriminant variables in explaining the styles of consumer complaint. Both consumer knowledge and budgeting skill were significant in explaining complaint styles to response dissatisfaction derived from consuming clothing while both consumer education and time constraint were significant in shaping the kinds of complaining styles derived from consuming household appliances.

• The Journal of Korean Institute of Communications and Information Sciences
• /
• v.34 no.3B
• /
• pp.288-303
• /
• 2009

In the near future it is foreseen that a genuine multimedia service over the WiMAX system is provided in a worldwide manner by exploiting the QoS technologies introduced in the wireless and wired broadband network. In this work we propose a pricing scheme for the multimedia service over the generic WiMAX system that supports a full QoS functionality. We assume real-time services such as the voice and video as well as the nonreal-time service such as the conventional high-speed data, and we propose a pricing and charging scheme for those services by investigating the inherent characteristics of those services and the multiple-class of QoS-service provided to them. After that we propose a method to compute expected revenue that is obtained from the WiMAX system by using an analytic method to estimate the usage of the bandwidth resources for the different class of services. Via numerical experiment, we verify the implication of the work.

• Journal of Information Science Theory and Practice
• /
• v.8 no.4
• /
• pp.29-39
• /
• 2020

The diverse set of phenomena, concepts, and activities existing in academic disciplines could be studied from multiple perspectives. One of the promising approaches to explore phenomena is hermeneutics, especially in the form of hermeneutic phenomenology, which has been formed as a consequence of postmodern movements. Hermeneutic phenomenology has taken root in the original ideas of philosophers like Husserl, Heidegger, and Gadamer, and has become one of the fruitful research methodologies over time. After a brief review of the foundations of hermeneutic and phenomenological methodologies, the role of the hermeneutic phenomenology approach in supporting research and information services is discussed. The present article seeks to describe narratively the use of hermeneutic phenomenology in such issues as information technology, information behavior, knowledge organization, and librarians' roles as related to Information Science.

• International Journal of Computer Science & Network Security
• /
• v.21 no.2
• /
• pp.1-8
• /
• 2021

Cloud computing has proven its efficiency, especially after the increasing number of cloud services offered by a wide range of cloud providers, from different domains. Despite, these cloud services are mostly heterogeneous. Consequently, and due to the rising interest of cloud consumers to adhere to a multi-cloud environment instead of being locked-in to one cloud provider, the need for semantically interconnecting different cloud services from different cloud providers is a crucial and important task to ensure. In addition, considerable research efforts proposed interoperability solutions leading to different representation models of cloud services. In this work, we present our solution to overcome this limitation, precisely in the IAAS service model. This solution is a framework permitting the semantic interoperability of different IAAS resources in a multi-cloud environment, in order to assist cloud consumers to retrieve the cloud resource that meets specific requirements.