• Journal of the Korean Society of Environmental Restoration Technology
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• v.12 no.5
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• pp.92-100
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• 2009

This study was surveyed from May to October, 2008 in order to classify type distribution and evaluate the function of inland wetland as a ecological axis in Chungnam province. Assessment was done by modified-RAM (Rapid Assessment Method). RAM is consisted of total 8 functions and divided into high, moderate, low. The conservation grade of RAM is divided into 4 grades; absolute conservation, conservation, improvement and restoration. Throughout survey on total 13 wetlands of Lacustrine, Palustrine wetland which are distributed in Chungnam province, their function was assessed. As result, the 2 wetlands were judged as absolute conservation grade by assessment of 8 functional contents, and 7 sites were improvement wetlands and 4 sites were conservation wetlands. The function of wetlands assessed as conservation grade showed high in water quality protection and improvement. Also, showed high in vegetation diversity, wildlife habitat and aesthetic recreation. Meanwhile, showed low in Water quality purification, Shoreline/Stream Bank Protection. Of wetlands evaluated as conservation grade, Jeong-juk Ji and Dun-ri reservoir were assessed as absolute conservative area. These wetlands are essential to be managed continuously as a area having high ecological value. Farther, these wetlands will be done as a axis of ecological network related to 'Kumbuk jeongmaek' ecosystem.

• Journal of Communications and Networks
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• v.13 no.2
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• pp.149-159
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• 2011

In this paper, we study the problem of how to design a medical-grade wireless local area network (WLAN) for healthcare facilities. First, unlike the IEEE 802.11e MAC, which categorizes traffic primarily by their delay constraints, we prioritize medical applications according to their medical urgency. Second, we propose a mechanism that can guarantee absolute priority to each traffic category, which is critical for medical-grade quality of service (QoS), while the conventional 802.11e MAC only provides relative priority to each traffic category. Based on absolute priority, we focus on the performance of real-time patient monitoring applications, and derive the optimal contention window size that can significantly improve the throughput performance. Finally, for proper performance evaluation from a medical viewpoint, we introduce the weighted diagnostic distortion (WDD) as a medical QoS metric to effectively measure the medical diagnosability by extracting the main diagnostic features of medical signal. Our simulation result shows that the proposed mechanism, together with medical categorization using absolute priority, can significantly improve the medical-grade QoS performance over the conventional IEEE 802.11e MAC.

• The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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• v.32 no.3
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• pp.77-86
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• 2019

Objectives : By analyzing symptoms of tinnitus, we tried to find out the relationship between deficiency and excess(虛實) and visceral pattern identification(臟腑辨證). By testing Tinnitus Handicap Inventory(THI), we evaluated the quality of life of people suffering from various aspects of tinnitus, as well as comparing treatment efficiency. Methods : 52 patients were recruited in this study who was ill with tinnitus. They wrote out the questionnaire about tinnitus and the THI. Results : The vast majority of high-grade tiny noise patients are deficiency type(虛症). The vast majority of low-grade roar patients are excess type(實症). Tinnitus persistence and feeling of ear occlusion were prominent in low-grade roar patients. low-grade roar patients suggest that overall quality of life is lower than high-grade tiny noise patients. In terms of treatment efficiency, spleen-stomach weakness(脾胃虛弱)-type, stomach heat(胃熱)-type and phlegm-fire(痰火)-type was higher than kidney essence depletion(腎精虧損)-type and liver qi depression(肝氣鬱結)-type regardless of the aspect of tinnitus. Conclusions : The present study suggests that tinnitus pattern may be helpful in differentiating patients with tinnitus, and the effectiveness of treatment can be predicted through differentiation.

• Animal Bioscience
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• v.36 no.9
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• pp.1426-1434
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• 2023

Objective: The objective of this study was to evaluate the effect of Debaryomyces hansenii isolated from dry-aged beef on the tenderness and flavor attributes of low-grade beef during dry aging. Methods: Five D. hansenii strains were isolated from dry-aged beef samples. The rump of low-grade beef was inoculated with individual D. hansenii isolates and subjected to dry aging for 4 weeks at 5℃ and 75% relative humidity. Microbial contamination levels, meat quality attributes, and flavor attributes in the dry-aged beef were measured. Results: Of the five isolates, the shear force of dry-aged beef inoculated with SMFM201812-3 and SMFM201905-5 was lower than that of control samples. Meanwhile, all five isolates increased the total free amino acid, glutamic acid, serine, glycine, alanine, and leucine contents in dry-aged beef. In particular, the total fatty acid, palmitic acid, and oleic acid contents in samples inoculated with D. hansenii SMFM201905-5 were higher than those in control samples. Conclusion: These results indicate that D. hansenii SMFM201905-5 might be used to improve the quality of beef during dry aging.

• Journal of Environmental Health Sciences
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• v.36 no.2
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• pp.148-154
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• 2010

In this study, a method for river water quality evaluation by algal examination was investigated. For development of this method, algae living in small rural streams in Gwangcheon-Cheon were collected and observed by microscope. Samples were collected at six stations from May 2008 to May 2009. To elucidate the relationship between pollution and the algal species, diatom grasps were collected from the streams and used to determine the water quality grade. The numerical EC value was compared with the value of DAIpo (Diatom Assemblage Index of Organic Water Pollution), and the results showed a tendency to a mutually inverse relationship. Further, the numerical BOD and COD values were compared to the DAIpo value. The results showed that, various diatoms reside in Gwangcheon-Cheon, and water quality was found to be second-grade at all the examined points. These results indicate pollution of streams by livestock wastewater; however continuous monitoring will be necessary to more definitely determine the reason for the Gwangcheon-Cheon pollution.

• Journal of Sericultural and Entomological Science
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• v.25 no.2
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• pp.65-68
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• 1984

This survey was to realize the foreign cocoon quality and to provide data for suitable reeling conditions. Cocoons were inported from Taiwan (7 packs) and Hongkong (12 packs) in 1983. The practical inspection and classiffication of above cocoon was performed at Provincial Institute of cocoon testing and tested data were collected to evaluate the cocoon quality. The results were as follows. 1. It showed higher variation of the average raw silk yield percentage and cocoon assorting rate than domestic cocoon. 2. In view of the low quality products, cocoon price was expensive and most of packs were evaluated as inferior grade. 3. It was supposed that importing the superior quality cocoon from foreign country may be contributed to manufacturing of silk commodity of higher grade.

• Journal of the Korean Wood Science and Technology
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• v.31 no.6
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• pp.22-30
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• 2003

This study was performed to obtain the basic data for high quality timber production and efficient utilization by investigating the effect of pruning on timber quality of domestic plantation-grown Korean pine (Pinus koraiensis Sieb. et Zucc.). The results were summarized as follows:Dead knots (unsound knots) in the pruned logs occurred more at upper parts when compared with in non-pruned ones. The numbers of knots on surface in heavily pruned trees were less than those in non-pruned trees, but there was no significant difference in moderately pruned trees. The required period to reveal clear timber surface without defects after pruning increased proportionally with the increase of knot diameter. The yield of clear lumber production increased by about 10% after 14 years from moderate pruning. The quality grade of log improved with more pruning practices. Knots appeared the most important factor in lowering the log grades.

• Journal of Environmental Impact Assessment
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• v.32 no.6
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• pp.577-589
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• 2023

In Korea, the technical techniques for assessing visual impacts are standardized, but the methods for assessing the marine landscape itself are not standardized and need to be improved. In particular, in the landscape impact assessment of offshore wind power generation in Korea, it is necessary to recognize the landscape itself as a receptor and prepare a system that can evaluate the characteristics and sensitivity of the landscape. In this study, we propose an evaluation method for preparing a marine landscape quality assessment document that reflects the project characteristics of offshore wind power projects, and examine the possibility of utilization by applying it to actual project sites as an example. To evaluate the quality of marine scenery in offshore wind power projects, evaluation items of landscape characteristics, physical characteristics, and socio-cultural characteristics were evaluated based on the preliminary survey contents, and the quality of marine scenery was divided into five grades. Next, the evaluation criteria of the evaluation items were synthesized and the quality of the marine landscape was classified into preservation grade (grade 5), semi-preservation grade (grade 4), buffer grade (grade 3), semi-improvement grade (grade 2), and improvement grade (grade 1). In addition, the Sinan-Ui Offshore Wind Farm, an actual project site, was randomly selected to conduct the evaluation process and examine its utilization. This study aims to complement the existing method of visual impact assessment in offshore wind power projects and evaluate the quality of the marine landscape itself to effectively conserve marine landscape resources during offshore wind power projects. Rather than relying on mechanical and quantitative evaluation, this study is expected to be used as a basis for comprehensive understanding of the location and socio-cultural characteristics of the project site and for communication and cooperation with stakeholders.

• Food Science and Preservation
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• v.5 no.2
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• pp.150-153
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• 1998

As strait As a result of the quality research of liner boards used for the national-made corrugated boxes for apples, basis weight of each sample passed its tolerance within 4%. We found that KA, WLK, and SC liner boards showed better in relative bursting strength. SC, WLK, KA, and SK performed better in relative compression strength. WLK201 and KA210 were good for the outside liner, and K2200 was adequate for medium and inside liner. we classified WLK and KA liner boards as A grade and others as C grade.

• Journal of Animal Science and Technology
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• v.55 no.3
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• pp.203-210
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• 2013

The present study was undertaken to investigate the effects of the decreased carcass grade due to overweight on meat quality traits of the loin and belly. Out of 500 carcasses from 85- to 150-kg market pigs, seven average-size $1^+A$ carcasses, seven 1A and twelve 1B carcasses almost weighing the upper limits allowed for the A (95 kg) and B (99 kg) grades, respectively, and 12 1B carcasses weighing 100 kg or greater were selected for the present study. Marbling score was greater in the $1^+A$ grade than in any other grade, whereas color and textural properties of the muscle and fat of the carcass did not differ among the four carcass grades. Physicochemical characteristics of the loin including the color, pH, chemical composition, and others pertaining to the textural properties changed minimally with decreasing carcass grade. Off-odor of the fresh loin and belly was not influenced by the carcass grade whereas dripping was lowest in the $1^+A$ grade; color and marbling were not influenced or minimally influenced by the carcass grade. Overall acceptability of the fresh primals, however, did not differ among the carcass grades. In cooked loin and belly, a trend of decreased taste and acceptability with decreasing carcass grade was evident, albeitat a low slope, with a significant difference detected between $1^+A$ and 2C grades. In conclusion, the decreased pig carcass grade due to overweight is accompanied by a slightly decreased meat quality, suggesting that the yield grade of pig carcass is also somewhat reflective of meat quality.