• Journal of Korea Technical Association of The Pulp and Paper Industry
• /
• v.46 no.5
• /
• pp.61-68
• /
• 2014

The energy efficiency of papermaking process becomes more significant because of various new regulation of the energy consumption and the green house gas emission. In this study, the effects of wood powder addition on the drainage and the drying efficiency of the OCC based paper products, linerboard, were deeply investigated for improving energy efficiency. The fractionation of wood powder depending on the size were conducted. The bigger size of wood powder resulted in the higher bulk and the higher drainage efficiency, but the lower paper strength. The drying efficiency were in detail evaluated depending on the drying process level. In the first section of drying process until the 80% solid level, there were no significant changes in the drying efficiency by the addition of wood powder. However, after the 80 % solid level, the drying efficiency was greatly improved by the addition of wood powder. Those results showed the addition of wood powder could greatly affect not only the drainage in forming and wet pressing but also the drying process.

• Journal of the Korean Association of Geographic Information Studies
• /
• v.12 no.4
• /
• pp.146-157
• /
• 2009

In order to implement ontology data searching system, this paper uses some methods that effectively analyse searching options/key words with event process model and design pattern. I will propose some techniques on object-oriented process model that should improve reusability of system and reusability of ontology data which users can obtain more precise searching results. This paper shows that ontology-based data searching can assure users of the precision of searching results. Therefore, ontology-based data searching system on object-oriented design pattern is expected to show high stability and reliability, enhance reusability and scalability of modules and softwares and provide reliable data searching results to users.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.20 no.4
• /
• pp.73-82
• /
• 2018

This research investigated the mechanical properties of the 4 different types of $3{\times}3$ cable stitches on weft knitted fabrics. The 4 kinds of cable-stitch fabrics were knitted under the same knitting conditions, then the mechanical properties, such as tensile strength, elongation, stiffness, etc. were measured according to the Korean Industrial Standards (KS K 0642). The knitting time for the sample produced by the knitting process 1 was the shortest among the 4 different types of samples. It means that the knitting process 1 would have benefits of higher productivity if there is no yarn breakage during the knitting of the cable stitches. In the test for tensile strength, the samples produced by knitting processes 3 and 4 have tensile values of approximately 8~11% higher than the sample produced by knitting process 1. The test for elongation also shows that the samples produced by knitting processes 3 and 4 have up to 18% higher elongation values than the sample produced by knitting process 1. On the other hand, the stiffness test showed no significant difference between the 4 samples. This study is expected to increase the competitiveness of the local knitting industry as a result of providing basic data on the mechanical properties of special knitted stitches, such as cable stitches.

• Journal of The Korean Association For Science Education
• /
• v.28 no.2
• /
• pp.111-119
• /
• 2008

We objectively analysis of teacher recommendation on selection process for scientifically gifted program, by having conducted the test of scientific attitude, process skill, logical thinking, creative problem-solving ability and creativity of the students who were enrolled in science gifted-education programs, students who were recommended by science teachers as talented in science and students of ordinary classes. In result, both gifted program students and teacher-recommended students scored much higher than ordinary class students in all test fields, but there was no meaningful difference between the gifted-program students and teacher-recommended students. This result signifies that teacher recommendation is a valuable tool for selecting students for a science gifted-education program.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.25 no.4
• /
• pp.45-57
• /
• 2023

This research compared and analyzed a representative jacket pattern making method to suggest implications for the mass customization process of clothing. Four types of pattern making methods were selected according to the degree of reflection of human body measurements. Patterns were analyzed according to the size of middle-aged women. The results of this study are as follows. First, it identified and compared the difference in human body measurement and drafting processes required for pattern drafting. Next, as a result of analyzing the manuals and institutional figures presented in the pattern drafting manuals, problems such as B.P. location and compartment of the chest circumference, which are not appropriate, were found and the human body measurement method is different for each pattern making method. Through the above analysis, the advantages and disadvantages of the pattern making methods were identified and proposed improvements and implications for the application to the apaarel mass customization process were presented.

• Journal of Oral Medicine and Pain
• /
• v.43 no.3
• /
• pp.77-83
• /
• 2018

Purpose: The present study was designed to investigate the association of ponticulus posticus (PP) and elongated styloid process (ESP) with headaches. Methods: Analysis of head and neck cone beam computed tomography samples from the archives of the Department of Oral Radiology was done for the presence of partial or complete PP and ESP length, type, thickness, mediolateral angulation, anterioposterior angulation (horizontal & vertical), lateral or medial curvature. This was followed by personal & telephonic questionnaires to the subjects for the evaluation of the presence of headaches & other associated symptoms. Results: Among 134 subjects, 62 subjects (46.3%) presented with headache and 72 subjects (53.7%) did not have any headache. On further analysing the total 62 subjects with headache, it was found out that 31 subjects (50.0%) of them had ESP and PP both, 16 subjects (25.8%) had only ESP, and 15 subjects (24.2%) had only PP. A strong association was present between headache and presence of PP & ESP individually and together. Conclusions: All health care professionals dealing with the head and neck pain disorders should also consider the presence of ESP & PP during diagnosis and treatment.

• English Language & Literature Teaching
• /
• no.6
• /
• pp.159-178
• /
• 2000

In systemic grammar an English clause is analysed simultaneously from the point view of its ideational function, interpersonal function and textual function. This study deals with only the ideational function of the three functions, which accounts for the underlying content of a clause. Transitivity is the subsystem of the ideational function. It specifies the different types of process that are recongnized in the language and the structures by which they are expressed. The purpose of the paper is to describe the transitivity of English clause on the basis of systemic approach. For this we analyzed the three subsystems of transitivity which are physical process, mental process and relational process in the form of features. And we described the sets of the features of the three different types of process in English clause in the framework of the system network.

• International Commerce and Information Review
• /
• v.11 no.3
• /
• pp.25-45
• /
• 2009

The e-Trade environment has enabled the complex trade processes to be automated using e-Trade information systems, which had been manually processed through many trade-related parties in the past. Korea has completed the development of the most advanced e-Trade platform called "u-Trade Hub," which can process automatically all the trade-related activities from marketing to payment. It is anticipated for the world trade environment to have more FTAs throughout the world and this will complicate the trade processes more and more in the future. This means the constant cost-bearing updates of the e-Trade environment to adapt the process changes brought by new FTAs with other countries. In this paper, we propose the systematic approach to easily as well as less costly adapt the possible trade process changes resulted from the future FTAs by adopting a rule base management system. The prototype system to test the applicability of the proposed approach is developed using Win-Prolog 4.8 environment.

• Korea journal of population studies
• /
• v.12 no.1
• /
• pp.30-42
• /
• 1989

This study develops a model of migration decision-making process, with identifying macrolevel and microlevel factors affecting the process. The model includes some sequential stages : to be dissatisfied with current residential area, intend to move, collect information about alternative destinations, select destination, decide to move, and make actual migration. The macrolevel factors included in the model are environmental, socioeconomic, cultural, and demographic characteristics of the current residence and alternative destinations. The microlevel factors are psychological, socioeconomic, and demographic characteristics of the individual. The effects of the macrolevel and microlevel factors on each stage of migration decision-making process are identified from the previous studies on migration. This study has both theoretical and practical implications. The theoretical contribution will be in the area of integrating the ecological and the individual level perspectives of migration by identifying the macrolevel and microlevel effects on migration decision-making process. This study also has implications for theoretical frameworks guiding empirical analysis of migration behavior of the individuals, and for policies aimed at redistributing population.

• The International Journal of Costume Culture
• /
• v.13 no.1
• /
• pp.62-66
• /
• 2010

Of all the ways that energy is consumed within textile industry, few are as high energy-expending as dyeing process. The energy consumption in dyeing process amounts to 77% of total fuel consumption, 54% of total electricity use. A technical development in terms of efficient saving energy and time as well is required in the process of dyeing textiles. Recently, dyeing experts are investigating new technologies can conserve energy grafting into microwaves, radio waves, infrared lights, etc. Dyeing industry in Korea, however, the research related to energy conservation has been rarely conducted. Accordingly, this study aims to examine the possibility where especially microwaves could be applied to reduce the energy use and enhance dyeing process skill. This study performs the experiment in which microwave is employed as heating condition in dyeing and figures out as color yield being promoted, bathochromic effect would be achieved. Applying microwaves in dyeing process is expected to lower the carbon emission, energy and time wasted, ultimately exalt economic efficiency.