• Journal of Korean Society of Rural Planning
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• v.18 no.4
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• pp.141-152
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• 2012

Recently the package design for agricultural product of farm stay is great interests for increasing the income of farmers and villages as it may fulfill the sensible needs of consumers who experience rural culture and farm stay. This paper presents the status of the package design for agricultural product of farm stay and proposed improvements to the package design as following; 1)to diversify the packaging capacity, 2)to develop the cultural products to applicate the traditional crafts technique, 3)to provide institutional strategies for presenting the identity of farm or village, 4)to develop the education program about package design. We sampled fifty pilot farms or villages, analyse the package design of them and questionnaire surveyed farmers and managers in order to find problems and suggest improvements.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.56 no.5
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• pp.854-859
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• 2007

A wind farm consists of many wind generator(WG)s therefore, it is generally a complex power system. A wind farm as a distributed generation(DG) affects utility power system. If a conventional protection schemes are applied, it is difficult to detect faults correctly and the schemes can't provide proper coordination in some cases. This paper presents a protection algorithm for a wind farm which consists of a looped collection circuit. Because the proposed algorithm can distinguish between an internal fault and an external fault in a wind farm, The proposed algorithm can disconnect the faulted section in a wind farm. This algorithm is based on an overcurrent protection technique with the change of the ratio of the output current of a generator to the current of the looped line connected to each generator to collect the each generator's power. In addition, operating time of the algorithm is shortened by using the voltage drop at a generator collection point. The performance of the proposed algorithm was verified under various fault conditions using PSCAD/EMTDC simulations.

• Journal of Agricultural Extension & Community Development
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• v.19 no.3
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• pp.729-755
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• 2012

The role of branding has been to differentiate products, but brands have been increasingly applied to organizational image too. The brand image holds a key position by the marketing system in this era. The main purpose of this research is to analyze the case for the development of farm brand. A in-depth interview was conducted to analyze the case for development of farm brand in connection with agricultural products and their business operation. The farms used various stories in the process of develop brand including farm history, cultivation process, product, management, relationship with consumers. The study present the findings divide into brand naming, image, positioning. The farms built trust by consumer relationship with the farm brand. The results of the study provide insights for agricultural marketers who intend to design brand stories that align with their produce.

• Journal of Biosystems Engineering
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• v.19 no.3
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• pp.258-273
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• 1994

In this study, an expert system named ESMEF (Expert System for Mechanized Entrusted Farming) was developed. The function of ESMEF is to provide the various data and informations for entrusted farming such as farm machinery management data, mechanization systems by farm sizes, number of units and sizes of machinery needed, machinery replacement analysis, mechanization costs analysis. Mechanization systems were selected by ESMEF for different farming sizes of Chungnam Province and an economic analysis was conducted as an example. The results showed that the farm machinery purchasing costs were 1,344~4,829 thousand won per ha and there was no significant difference for farm sizes above 60 ha. The total annual machinery costs were 3,595~4,537 thousand won per ha, and a minimum cost was appeared for farm size of l00ha at first. According to this analysis, an optimum entrusted farming size would be 100ha by the present available farm machinery systems.

• Agribusiness and Information Management
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• v.7 no.2
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• pp.27-37
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• 2015

This study was carried out with the goal of improving accessibility for farmers in record management. The pre-survey for farm records found that the main reasons for lack of records were "no need" and "no time" to keep such records. Based on the results of the pre-survey of smartphone-based farm recordkeeping, the major composition articles were management books, daily work logs, analysis books and additional books compiled by setting log in, notice and suggestions. The number of smartphone-based farm record books was 4,430 nationwide. We also updated farms keeping records on seven occasions for user convenience. Regional differences in the utilization ratio of record books showed that continuous promotion and education aimed at users were key points of success for farm recordkeeping books.

• The Transactions of The Korean Institute of Electrical Engineers
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• v.60 no.1
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• pp.32-35
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• 2011

The economic value of a wind farm project is influenced by various risk factors such as wind power output and electricity market price. In particular, there is uncertainty in the economic evaluation of a wind farm project due to uncertain wind power outputs, which are fluctuated by weather factors such as wind speed, and volatile electricity market prices. This paper presents a systematic method to assess the economic value and payback period of a wind farm project using Least Square Monte-Carlo (LSMC) simulation. Numerical example is presented to validate the effectiveness of the proposed economic assessment method for a wind farm project.

• The Transactions of the Korean Institute of Electrical Engineers A
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• v.52 no.3
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• pp.151-157
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• 2003

Wind farm interconnected with grid can supply the power into a power network not only the normal conditions, but also the fault conditions of distribution network. If the fault happened in the distribution power line with wind fm, the fault current level measured in a relaying point might be lower than that of distribution network without wind turbine generator due to the contribution of wind farm. Consequently, it may be difficult to detect the fault happened in the distribution network connected with wind generator This paper describes the effect of the interconnected wind turbine generators on protective relaying of distribution power lines and detection of the fault occurred in a power line network. Simulation results shows that the current level of fault happened in the power line with wind farm depends on the fault impedance, the fault location. the output of wind farm. and the load condition of distribution network.

• Journal of Agricultural Extension & Community Development
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• v.18 no.4
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• pp.983-1010
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• 2011

The purpose of this study was to examine the implication for the return farm and rural training program through the analyzed trainees' satisfaction and general characteristics. This study polled 89 trainees who presented the Return farm and rural training program by Jeju Agricultural Research and Extension Service. and the results of analysis are as follows. First, trainees' general characteristics appeared very various at an age structure, stage and type of return farm and rural. Second, the overall satisfaction level for the training program was normal but it was different according to the trainees' general characteristics, stage and type of Return farm and rural. This result was due to the unilateral training program. Consequently, it required a lot of efforts for the improvement of satisfaction through reflecting the trainees' properties in the training plan.

• Korean Journal of Agricultural Science
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• v.35 no.2
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• pp.237-245
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• 2008

China's agriculture is changing now, especially in terms of cash farming. Orange farming is one of the main cash crops. This study is to identify the labor utilization of orange farming of farm households in China. The Results are as follows. First, farm size increasing is an essential measure to save labor. Big farm requires less than 20% of labor inputs than that of average size farm. Second, in the aspect of the employment labor, while male labor accounted for the 5% of total labor, female employment labor took up much more, which amounts to almost half of family labor. Third, the average wage of men is almost twice as much as that of women's wage, and it is sharply increasing. Fourth, Chinese farm households put more labor input than Korean farm households in orange production, which is due to the substitution of capital for labor.

• Proceedings of the KIEE Conference
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• 2003.11a
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• pp.334-336
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• 2003

This paper describes the influences of the large scaled wind farm interconnected with 154 kV power networks on the operational characteristics of distance relay applied in the transmission line. The wind farm composed of wind turbine generators are one of the great energy sources: they can supply the power into an interconnected network not only the normal conditions, but also the fault conditions of power network. Therefore, the distance relay applied in the transmission tine may mal-operate due to the contribution of wind farm. This paper presents the operational characteristics of distance relay for the fault occurred in the transmission line interconnected with wind farm. Simulation results show that it is difficult to recognize the fault location due to the power output of wind farm.