• Horticultural Science & Technology
• /
• v.28 no.5
• /
• pp.902-911
• /
• 2010

Oriental melon ($Cucumis$ $melo$ var. $makuwa$) is a popular and high-value market fruit cultivated in Korea. Consumers are becoming increasingly interested in oriental melon as a healthy diet over the past few years. However, the melons have relatively high quality loss because the fruit are mainly produced for a limited period of time in the summer season. Lack of the proper postharvest treatments and high temperature exposure at harvest or during distribution are the most critical environmental factors limiting postharvest life of fruit. This review focuses on the overview of current research studies for postharvest treatment and functional packaging technology of oriental melon in Korea. Major physiological problems of the harvest fruit include the ripening process in quality changes of the produce such as loss of weight, firmness, flavor, and decay during the storage periods. Low temperature at 7 to $10^{\circ}C$ with high relative humidity of 90 to 95% is the suitable environmental condition used to maintain the quality of fresh oriental melon. Controlled atmosphere (CA) storage or modified atmosphere (MA) packaging can be used as supplemental treatments to extend postharvest-life. For oriental melon, an optimum CA is currently recommended to be 2-3% oxygen and 5-10% carbon dioxide atmosphere. Precooling, pretreatments of ethylene action and functional packaging system can be applied to oriental melon after harvest in order to extend storage life. Major active packaging technologies are concerned with a selectively gas permeable film related to respiration of produce and the packaging applications of ethylene removal, antimicrobial, and antifogging substances to keep the effective freshness of fruit.

• Journal of Korean Institute of Industrial Engineers
• /
• v.29 no.4
• /
• pp.271-282
• /
• 2003

Automotive occupant packaging has been a part of main ergonomics interests, especially, in terms of driver's posture. Previous research on driver's posture has mainly focused on the initial optimal posture for driving sedans. However, customer preferences on cars are shifting from sedans to RV and automobile manufacturing companies seek to understand temporal changes in drivers' posture according to driving environment. So the main aim of this study was to develop a driver's posture measurement system during driving and investigate casual changes due to duration, car type, traffic flow. Four male drivers participated in the experiments during one week. It was shown that considerable changes in their postures were caused with respect to driving environment, which implies that not only static optimal postures but their dynamic changes should be taken into consideration for proper design and evaluation of interior packaging. The research is expected to help packaging designers understand human drivers so as to improve their comfort.

• Journal of the Microelectronics and Packaging Society
• /
• v.8 no.4
• /
• pp.53-57
• /
• 2001

A short shot is an incomplete molded part caused by insufficient material injection into the mold. Remedial actions to control the process conditions can be taken by injection molding experts based on their knowledge and experiences. However, it is very difficult for non-experts to avoid short shot by finding the proper process conditions such as mold temperature, melt temperature and filling time. In this paper, an intelligent generator of optimal process conditions based upon fully logic algorithm is proposed so that trial and error can be minimized and non-experts an well at experts can also find the optimal process conditions.

• Proceedings of the International Microelectronics And Packaging Society Conference
• /
• 2003.11a
• /
• pp.22-26
• /
• 2003

Electrical conductivity of the oxidized MWNT(Multi walled nanotubes)/polymer composites were investigated with respect to various oxidative conditions of acid concentration, treatment temperature, and treatment time. To remove the impurities existing in MWNT-deposites, liquid-phase oxidation was performed using the $HNO_3/HSO_4$ mixtures. Secondary effects occurred by the oxidation of MWNTs such as the damages of MWNTs and the introduction of functionalities were analyzed through measuring FT-IR, TEM, and zeta potential, All the oxidized NWNTs were functionalized with carboxylic groups and the conditions of oxidation of the MWNTs could have a certain influence on the degree of functionalization, damages, and dispersion of the MWNT. The electrical properties of MWNT composites strongly depend on the oxidative conditions of MWNTs. The conductivity of the composites filled with the proper oxidized MWNT showed the highest percolation threshold.

• Language and Information
• /
• v.5 no.2
• /
• pp.87-102
• /
• 2001

This paper deals with interpretation of pronouns in terms of Information Packaging Theory, proposed in Vallduvi(1994) and Engdahl and Vallduvi (1996), which depicts how discourse participants update new information, using three informational components: link, tail and focus. Based on empirical evidence, this paper argues that the information structure of an utterance is not enough for the hearer to process its information in accordance with the speaker's intention. It suggests that the hearer should be able to activate lexical file cards and frame file cards when necessary to designate the proper file card in which the information of the utterance should be recorded. It also proposes that, contrary to Vallduvi's claim, pronouns may create a new file card.

• Journal of the Korea Safety Management & Science
• /
• v.13 no.2
• /
• pp.115-127
• /
• 2011

The aim of this study was to develop a standard to estimate safety factors of corrugated fiberboard containers used for agricultural products. This study is limited to fresh agricultural products packaged in the corrugated fiberboard containers and further work needs to be done, but we believe the data and results obtained by this research will greatly help to set proper package design for boxes. Especially, safety factor would be practically helpful for researchers for future study and packaging users to save packaging costs.

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
• /
• v.22 no.3
• /
• pp.71-77
• /
• 2016

The effect of packaging material in enhancing the shelf life and maintaining the postharvest quality of endive (Cichorium endivia L.) was studied. Endive were packed in three packaging materials: paper box (control); paper box with endive wrapped in high density polyethylene (HDPE) film; and plastic box container covered with high density polyethylene (HDPE) film. The quality characteristics, such as fresh weight loss, soil plant analysis development (SPAD) value, and appearance of endive were investigated during 20 days of storage at $2^{\circ}C$. The endive wrapped with HDPE film inside the paper box showed the lowest weight loss, highest SPAD value and the best appearance compared to those wrapped in other packaging types during storage. The results indicate that the marketability of endive can be optimized with proper packaging and storage.

• Journal of the Korean Institute of Electrical and Electronic Material Engineers
• /
• v.21 no.1
• /
• pp.57-62
• /
• 2008

From the progressing results, it was found that thin film using 52 wt% Ni - 38 wt% Cr - 3 wt% Al - 4 wt% Mn - 3 wt% Si target has good characteristics for low TCR (temperature coefficients of resistance) and high resistivity. The optimum sputtering condition was DC 250 W, 5 mtorr, and 50 sccm and the proper annealing condition was $350^{\circ}C$/3.5 hr in air atmosphere. At these fabricated conditions, thin film resistors with TCR values of less than ${\pm}10ppm/^{\circ}C$ were obtained. The TCR of the packaged-samples made at proper fabrication conditions was $-3{\sim}15ppm/^{\circ}C$ after the thermal cycling and $-20{\sim}180ppm/^{\circ}C$ after PCT (pressure cooker test), we could confirm reliability for the thin film resistor and find the need for enduring research about packaging method.

• Proceedings of the PSK Conference
• /
• 2003.10b
• /
• pp.72.1-72.1
• /
• 2003

The use of auxiliary labels in many advanced countries has shown that patients and caregivers understanding, safety and compliance with proper administration of medication is significantly increased. Although in Korea we give required information orally and written on the packaging when we dispense medication, many international studies have demonstrated a marked increase in full compliance when auxiliary labels were used. The pharmacist must insure that the patients understand how to take correctly in order to get the maximum effect of treatment. (omitted)

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
• /
• v.20 no.3
• /
• pp.113-120
• /
• 2014

Packaging has played important function on marketing as a silent salesman. As an interface of consumer and products, packaging fulfills several functions such as protection, sales promotion, communication and convenience during the distribution process. For the appearance of self-service sales method, packaging could be regarded as important salesman influencing consumers' preference on shelf in the shop. In this study, Vitamin water was selected as the proper target product for lower impact of prices and brands. With previous studies, Vitamin water packaging elements were classified as 'packaging material', 'packaging shape', 'label color', 'logo layout', then each packaging element was consist of details. To measure the influence of each packaging element on consumers' preference quantitatively and to minimize respondent's subjective judgment, Analytic Hierarchy Process (AHP) was used as a tool. Through AHP result, packaging element of the most influence on consumers' preference is 'label color (0.370)', and 'container shape (0.246)', 'container material (0.230)', 'logo layout (0.154)' was in order. Among the detail packaging element, 'plastic (0.405)' has the greatest influence in 'container material' and 'cylinder (0.423)' in 'container shape', 'magenta (0.329)' in 'label color', 'vertical layout (0.572)' in 'logo layout'.