• Title/Summary/Keyword: Agricultural by-product

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A Prediction Model for Agricultural Products Price with LSTM Network (LSTM 네트워크를 활용한 농산물 가격 예측 모델)

  • Shin, Sungho;Lee, Mikyoung;Song, Sa-kwang
    • The Journal of the Korea Contents Association
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    • v.18 no.11
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    • pp.416-429
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    • 2018
  • Typhoons and floods are natural disasters that occur frequently, and the damage resulting from these disasters must be in advance predicted to establish appropriate responses. Direct damages such as building collapse, human casualties, and loss of farms and fields have more attention from people than indirect damages such as increase of consumer prices. But indirect damages also need to be considered for living. The agricultural products are typical consumer items affected by typhoons and floods. Sudden, powerful typhoons are mostly accompanied by heavy rains and damage agricultural products; this increases the retail price of such products. This study analyzes the influence of natural disasters on the price of agricultural products by using a deep learning algorithm. We decided rice, onion, green onion, spinach, and zucchini as target agricultural products, and used data on variables that influence the price of agricultural products to create a model that predicts the price of agricultural products. The result shows that the model's accuracy was about 0.069 measured by RMSE, which means that it could explain the changes in agricultural product prices. The accurate prediction on the price of agricultural products can be utilized by the government to respond natural disasters by controling amount of supplying agricultural products.

A Case Study on the Development of Farm Branding for Value-added Agricultural Products (스토리텔링 마케팅을 위한 농가 브랜드 개발 사례)

  • Kim, Kyung Hee;Park, Duk Byeong
    • 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.

Anatomical Proportions and Chemical and Amino Acid Composition of Common Shrimp Species in Central Vietnam

  • Ngoan, L.D.;Lindberg, J.E.;Ogle, B.;Thomke, S.
    • Asian-Australasian Journal of Animal Sciences
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    • v.13 no.10
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    • pp.1422-1428
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    • 2000
  • This investigation was conducted to evaluate the shrimp flesh (SF) and shrimp by-product (SB) of the most abundant shrimp species (Metapenaeus affinis, Penaeus semisulcatus and Penaeus monodon) caught in Central Vietnam, with the emphasis on yield, gross and amino acid (AA) composition and effect of heat treatment. The results showed that the mean edible SF and SB (head and shells with tail) yields of the three shrimp species averaged 56.7 and 43.3%, respectively, of the total wet body weight, with the M. affinis generating the highest by-product yield (45.7%) and P. semisulcatus (40.6%) the lowest. Significant differences in dry matter (DM), crude protein (CP) and ash content were found between SF and SB. The DM content of SF (21.5%) was lower than of SB (24.9%) and the ash content (on a DM basis) of the SB in all shrimp species was more than three times that of the SF (p<0.05), whereas the CP content was almost twice as high in the SF as compared with the SB (p<0.05). The SB of the three species contained (on a DM basis) between 44.0 and 49.8% CP (p<0.05) and between 13.5 and 18.1% chitin (p<0.05). The Ca content of SB differed also between species (p<0.05). On average, the sum of AA in SB corresponded to 89.3% of the CP and essential AA accounted for about 50% of the total AA. The most abundant AA were arginine, aspartic and glutamic acids, which accounted for 33% of the total AA. Minor, but significant differences in some AA concentrations of SB between species were observed (p<0.05). With the exception of the DM and ether extract content, all other chemical constituents of entire shrimp, SF and SB were not significantly affected by heat treatment (p>0.05).

Mechanical and Biological Characteristics of Reinforced 3D Printing Filament Composites with Agricultural By-product

  • Kim, Hye-Been;Seo, Yu-Ri;Chang, Kyeong-Je;Park, Sang-Bae;Seonwoo, Hoon;Kim, Jin-Woo;Kim, Jangho;Lim, Ki-Taek
    • Food Engineering Progress
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    • v.21 no.3
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    • pp.233-241
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    • 2017
  • Scaffolds of cell substrates are biophysical platforms for cell attachment, proliferation, and differentiation. They ultimately play a leading-edge role in the regeneration of tissues. Recent studies have shown the potential of bioactive scaffolds (i.e., osteo-inductive) through 3D printing. In this study, rice bran-derived biocomposite was fabricated for fused deposition modeling (FDM)-based 3D printing as a potential bone-graft analogue. Rice bran by-product was blended with poly caprolactone (PCL), a synthetic commercial biodegradable polymer. An extruder with extrusion process molding was adopted to manufacture the newly blended "green material." Processing conditions affected the performance of these blends. Bio-filament composite was characterized using field emission scanning electron microscopy (FE-SEM) and energy dispersive X-ray spectroscopy (EDX). Mechanical characterization of bio-filament composite was carried out to determine stress-strain and compressive strength. Biological behaviors of bio-filament composites were also investigated by assessing cell cytotoxicity and water contact angle. EDX results of bio-filament composites indicated the presence of organic compounds. These bio-filament composites were found to have higher tensile strength than conventional PCL filament. They exhibited positive response in cytotoxicity. Biological analysis revealed better compatibility of r-PCL with rice bran. Such rice bran blended bio-filament composite was found to have higher elongation and strength compared to control PCL.

To develop the classification method of Agricultural by-productions for biogas production

  • Kim, Minjee;Kim, Sanghun
    • International Journal of Internet, Broadcasting and Communication
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    • v.7 no.2
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    • pp.155-160
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    • 2015
  • The objective of this study was to develop the classification method of various organic wastes. Specifically, the effects of proximate composition on the biogas production and degradation rates of agricultural by-production was investigated and a new standards for mixture of various organic wastes based on proximate composition combination was developed. Agricultural by-products (ABPs) with medium total carbohydrate, medium crude protein and low fat contents demonstrated the single step digestion process. ABPs with low total carbohydrate, high crude protein and high fat contents demonstrated the two step digestion process of Diauxic growth. The single ABP (Class No. 15) and the mixed ABPs (Class No. 12+18, 6+12+22, 9+12+18) after 10days showed the similar biogas yield pattern. We can use the classification method for the more ABPs and organic wastes from factory and municipal waste treatment plant for the high efficient biogas production.

The Competitiveness of Korea-China-Japan agricultural products and Korea-China FTA Agricultural Trade impacts (한·중·일 농산물 경쟁력과 한·중 FTA 농산물 교역량증가 효과)

  • Nam, Kuk-Hyun;Li, Tianguo
    • Journal of Agricultural Extension & Community Development
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    • v.25 no.2
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    • pp.71-83
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    • 2018
  • This study aims to analyze the competitiveness of agricultural products in Korea, China and Japan and the effect of increasing imports from Korea and China. and then we discussed how to cooperate in the agricultural trade field between the three countries. The results are summarized as follows. First, The intra-industry trade of agricultural products was the most active in Korea and China, followed by the intra-industry trade index between Korea and Japan. The intra-industry trade between China and Japan were the lowest. Second, The mutual complementarity of agricultural products trade between Korea, China and Japan is mostly high. Among them, Korea and Japan are the highest, while Japan and China have the lowest complementarity. Third, it was found that in tariff elimination, imports of rice and meat products increased the most, while the import growth rate of green tea, meat products and ginseng increased the most. Finally, the three countries in Korea, China, and Japan can consider the way to increase the trade of agricultural products in the region by internalizing the trade of complementary items while maintaining a constant level of production of mutually competitive products.

Agribusiness Areas on the Employment Sector of Graduates of Agricultural Science college (농학계열 대학 졸업생의 취업분야를 통해 본 농산업영역)

  • Kim, Jung-Tae;Lee, Jong-Sang
    • Journal of Agricultural Extension & Community Development
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    • v.22 no.2
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    • pp.175-190
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    • 2015
  • Most studies examining the sub-categories of agro-industry used to access an inter-industry analysis. However, These are some limitations that researchers set sub-categories differently according to their needs. Thus, This study aims to empirically explore the agro-industry sub-categories by area of academic research on agricultural science. The National Standard Science and Technology Classification(NSSTC) codes were used to classify academic research on agricultural science. This codes were examined the sub-categories using Korean input-output statistics industry and product classification by hiring 220 departments of 37 agricultural colleges. Results showed that studies using an inter-industry analysis coincided in terms of agricultural production, but showed differences in forward and backward linkage industries and services. Forward linkages industry were clearly limited to industries in which agricultural products are inputted as raw materials. Then, in terms of services related to agriculture, Previous studies represent fields such as transport and real estate, which are not included. Moreover, Research institutions overlooked by previous studies occupy an important position.

A Theoretical Study on the Measurement of User Information Satisfaction on the Information System (정보시스템 이용자의 정보만족도 측정에 관한 이론적 고찰)

  • Ahn, Sang-Keun;Choi, Min-Ho;Kim, Sung-Soo
    • Journal of Agricultural Extension & Community Development
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    • v.4 no.1
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    • pp.201-209
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    • 1997
  • The objective of this study were 1) to review concepts of user information satisfaction (UIS), 2) to analyze tools for measuring user information satisfaction, 3) to identify factors affecting information satisfaction. The study was carried out by the analysis of literatures related to information system. The construct of UIS has been operationalized in many different ways. Several studies employed single-item rating scales; such scales have been criticized as unreliable. Single-item scales also provide little information as to what the user finds dissatisfying(satisfying) and are thus of limited utility outside a research setting. Multiple-item UIS measures have become increasingly common. Generally, they are of two types. The first focuses on the information system product. With such diverse names as "system acceptance", "output quality", and "appreciation", these scales focus on the content of the information system and the manner in which the information is presented. The second type of multiple-item scale includes the organizational support for developing and maintaining the system as well as the system product itself. This type of instrument contains items concerned with training, documentation, development procedures, systems maintenance, etc., as well as items related to system content. Thus it provides an indicator of the overall quality of information services provided by an information service function. Generally, UIS measures have not been carefully validated. Recently, however, several rigorous attempts have been made to develop valid and reliable UIS measure.

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A Study on the Application of Natural Circulation -based Green Village Landscape Design-: The Case of Joongchon Village in Gimje-si (자원순환형 녹색마을 경관디자인 적용에 관한 연구 -김제시 중촌마을을 대상으로-)

  • Kim, Sang-Bum;Son, Ho-Gi;Lee, Chang-Hun;Rhee, Sang-Young
    • Journal of Agricultural Extension & Community Development
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    • v.18 no.4
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    • pp.961-981
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    • 2011
  • This study selected Joongchon Village in Gimje-si as a target, in order to apply green village design regarding regional circumstances and features within the local government, in making green village as an efficient scheme in aspect of locality for 'Low Carbon, Green Growth'. Subsequently, we conducted survey and analysis. Natural circulation-based green village of Joongchon Village in Gimje-si is a low carbon green village, based upon eco-friendly cattle shed. Even though it is the fact that the initial costs of an eco-friendly cattle shed are rather high, it is the long-term low carbon green technology that can transform livestock night soils into resources, provide them to agricultural farms, independently supply energies from by-product, and produce energies additionally. Therefore, Joongchon Village in Gimje-si is the good example of green village, applying the design which actively utilizes discharged by-product from cattle shed, so natural circulation and energy production are able as an eco-friendly green technology.

Characterization of Acharan Sulfate Binding Proteins in Murine Lewis Lung Carcinoma Cell

  • Joo, Eun-Ji;Hahn, Bum-Soo;Kim, Yeong-Shik
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.150.2-151
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    • 2003
  • We have focused on various biological activities of acharan sulfate (AS) isolated from the giant African snail Achatina fulica. In a previous study, AS showed antiangiogenic and immunomodulating activity. We also investigated antitumor activity of AS. In vitro AS had no cytotoxicity within 0 to 200 ug/ml in tumor cells such as Lewis lung carcinoma(LLC) , KM1214 (human colon cancer cell) and Caki-1 (human kidney cancer cell) by both MTT and SRB assay. In vivo AS was used to treat C57BL/6 mice bearing LLC by subscutaneous injection. (omitted)

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