• Title/Summary/Keyword: natural resource

Search Result 1,434, Processing Time 0.029 seconds

Development of SISI Test Software based on PC (PC 기반의 SISI 검사 소프트웨어 개발)

  • Kang, Deok-Hun;Song, Bok-Deuk;Shin, Bum-Joo;Lee, Kwang-Ho;Kim, Jin-Dong;Jeon, Gye-Rok;Wang, Soo-Geun
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.11 no.4
    • /
    • pp.1325-1332
    • /
    • 2010
  • SISI(Short Increment Sensitivity Index) test is to identify recruitment phenomenon that is used to diagnose detailed lesion of sensory-neural hearing loss. This paper describes SISI test software implemented to personal computer(PC). This software supports two test modes, consisting of auto-mode and manual-mode, which are classified according to whether or not audiologist to lead test, thereby enabling cost effective test. In addition, it has been designed to perform automatic masking in case of necessity. And by supporting not only 1dB increment but also 2 and 5dB increment, SISI test program of this paper makes it possible to acquire more accurate test result.

Evaluation of Coloring Potential of Dietzia natronolimnaea Biomass as Source of Canthaxanthin for Egg Yolk Pigmentation

  • Esfahani-Mashhour, M.;Moravej, H.;Mehrabani-Yeganeh, H.;Razavi, S.H.
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.22 no.2
    • /
    • pp.254-259
    • /
    • 2009
  • An experiment was conducted to evaluate the effect of different levels of extracted pigment from Dietzia natronolimnaea biomass as a source of canthaxanthin in comparison with synthetic canthaxanthin on egg yolk pigmentation. The experiment used a completely randomized design (CRD). A total of 63 laying hens, 68 weeks old, were used and the birds were allotted to 7 dietary treatments with each treatment replicated three times with three hens per replicate. Treatments consisted of 3 levels of synthetic canthaxanthin (4, 8 and 16 ppm), 3 levels of extracted pigment from D. natronolimnaea biomass (4, 8 and 16 ppm) and control. Changes in yolk color were determined in 2 eggs taken at random, during the four week experimental period from each replicate. Supplementation of extracted pigment from D. natronolimnaea biomass had a significant effect on the color of egg yolks (p<0.05). Yolk color score of the control group was 6.83 in BASF color fan and the yolk color score of different extracted pigment levels was 11.00, 12.50 and 14.50, respectively. The yolk colors of different levels of synthetic canthaxanthin were 12.00, 14.00 and 15.00, respectively. The effect of pigment supplementation on egg yolk color was better explained by polynomial response curves. The $R_{2}$ indicated that for 3 supplementation levels of each pigment studied, over 90% of the color variation could be explained by the pigment concentration. The egg yolk color after 15 and 30 days of storage was not significantly different, but boiling reduced egg yolk color significantly (p<0.05).

The Dyeing Properties and Functionality of Water Lily(Nymphaea tetragona) Leaves Extract as a New Natural Dye Resource(2): Dyeing of Silk and Wool Fibers (새로운 천연염료로서 수련 잎 추출색소의 염색성과 기능성(2): 견·모섬유를 중심으로)

  • Yeo, Youngmi;Shin, Younsook
    • Textile Coloration and Finishing
    • /
    • v.29 no.3
    • /
    • pp.171-179
    • /
    • 2017
  • This study was to investigate the practicality and functionality of water lily(Nymphaea tetragona) leaves as a natural dye resource while searching for various dyeing methods to utilize them. Effect of dyeing condition including methanol ratio of dyebath, dyeing temperature and time, mordanting method, etc were investigated. Colorants were prepared by extraction in methanol and followed drying process. When composing 30% of methanol in the dyebath, better dyeuptake and uniform dyeing were resulted. Pre-mordanting method gave better results in terms of dye uptake than post-mordanting method on the wool fabrics. Fe and Ti were effective for increasing the dye uptake on the silk fabrics. Depending on mordant type and mordanting method, the dyed fabrics got various color showing green, khaki, brownish yellow, dark brown, dark gray and so on. As for color fastness, the silk fabrics dyed with water lily extract showed relatively high rating in light fastness(3~4, 4~5 rating), washing fastness(4~5, 5 rating), and rubbing fastness(4, 4~5 rating). The silk and wool fabrics dyed with water lily leaves extract showed excellent antimicrobial activity over 98% of bacterial reduction rate against Staphylococcus aureus and Klebsiella pneumoniae. It was confirmed that water lily leaves can be used as a natural dye resource for dyeing wool and silk fabrics because its colorants showed excellent affinity and antimicrobial functionality as well as good colorfastness.

A catchment management experiences of the Evian natural mineral water (NMW) source site (에비앙 천연 광천수 수원의 유역 관리 사례)

  • Chung, Il-Moon;Lachassagne, Patrick
    • Journal of Korea Water Resources Association
    • /
    • v.53 no.spc1
    • /
    • pp.827-832
    • /
    • 2020
  • The catchment management experiences of the Evian natural mineral water (NMW) bottling company were reviewed. Evian is among the leading brands of bottled NMW in France, exporting worldwide and becoming a role model for companies in many countries due to its long-term experiences in sustainably managing NMW source areas. Experiences of bottled water companies in France show that they are incessantly moving forward with proactive and advanced ideas to meet environmental challenges. For business sustainability, companies are dedicated to improving their environmental performance through effective and planned resource management. Evian has been working with the local community in a spirit of co-ownership to invent and preserve the water resource and fulfill its ambition of sustainable industrial functioning. The partnership aims to balance the protection of the NMW resource and sustainable agricultural development within the catchment.

Relationship between Blood Mercury Level and Risk of Cardiovascular Diseases: Results from the Fourth Korea National Health and Nutrition Examination Survey (KNHANES IV) 2008-2009

  • Kim, Young-Nam;Kim, Young A;Yang, Ae-Ri;Lee, Bog-Hieu
    • Preventive Nutrition and Food Science
    • /
    • v.19 no.4
    • /
    • pp.333-342
    • /
    • 2014
  • Limited epidemiologic data is available regarding the cardiovascular effects of mercury exposure. The purpose of this study was to determine the relationship between mercury exposure from fish consumption and cardiovascular disease in a nationally representative sample of Korean adults using the Fourth Korea National Health and Nutrition Examination Survey (KNHANES IV 2008~2009). Survey logistic regression models accounting for the complex sampling were used to estimate the odds ratios (OR) adjusted for fish consumption frequency, age, education, individual annual income, household annual income, body mass index (BMI), waist circumference (WC), alcohol consumption status, and smoking status. The mean blood mercury level in the population was $5.44{\mu}g/L$. Trends toward increased blood mercury levels were seen for increased education level (P=0.0011), BMI (P<0.0001), WC (P<0.0001), and fish (i.e., anchovy) consumption frequency (P=0.0007). The unadjusted OR for hypertension in the highest blood mercury quartile was 1.450 [95% confidential interval (CI): 1.106~1.901] times higher than that of the lowest quartile. The fish consumption-adjusted OR for hypertension in the highest blood mercury quartile was 1.550 (95% CI: 1.131~2.123) times higher than that of the lowest quartile, and the OR for myocardial infarction or angina in the highest blood mercury quartile was 3.334 (95% CI: 1.338~8.308) times higher than that of the lowest quartile. No associations were observed between blood mercury levels and stroke. These findings suggest that mercury in the blood may be associated with an increased risk of hypertension and myocardial infarction or angina in the general Korean population.

Auto ABLB Audiometry System Supporting One-to-many Model (일 대 다 모델을 지원하는 자동 ABLB 청력 검사 시스템)

  • Song, Bok-Deuk;Kang, Deok-Hun;Shin, Bum-Joo;Kim, Jin-Dong;Jeon, Gye-Rok;Wang, Soo-Geun
    • Journal of the Korean Institute of Electrical and Electronic Material Engineers
    • /
    • v.24 no.6
    • /
    • pp.519-524
    • /
    • 2011
  • ABLB (alternate binaural loudness balance) test is one of the medical assessments to diagnose detailed lesion of sensory-neural hearing loss based on a recruitment phenomenon. However, current ABLB audiometry takes an operational model, so called face-to-face model, in which model one audiometrist can assess only one subject at a time. As a result, this face-to-face model leads to expensive audiometrist's labor cost and lengthy wait when there exist many subjects. As a solution, this paper suggests an ABLB audiometry system supporting one-to-many model in which model an audiometrist enables to assess several subjects concurrently. By providing such capabilities as real-time transfer of assessment result, video monitoring of subject and video chat, this solution can provide same effect as face-to-face model but overcome weakness of the existing face-to-face model.

Chemical Composition Change of Pasteurized and Cured Food Waste Using a Semi-dehydration Method and Optimal Feed Formulation for Swine (반건식 방법으로 살균$\cdot$숙성된 남은 음식물의 공정별 화학적 성분 변화 및 최적의 양돈 사료배합비 도출)

  • Baik Y H;Ji K. S.;Seo I. J.;Kwak W. S.
    • Journal of Animal Environmental Science
    • /
    • v.11 no.1
    • /
    • pp.61-70
    • /
    • 2005
  • A total of 4 trials were conducted to evaluate the nutritional value of food waste-byproduct feeds mixture(FWM) rotary drum-pasteurized and cured, to trace the nutritional flow according to the processing stages and finally to determine the optimal mixing formulation of feed ingredients for the growing pigs. Pasteurizing and curing FWM using a rotary drum drier resulted in little change in chemical composition and 8 to $15 \%$ of dry matter losses. Chemical change was affected by different feed ingredients used in each trial. Curding of FWM was caused probably by high moisture content, starch content and(or) physical characteristics of feed ingredients. The optimal mixing ratio of feed ingredients was food waste 45 : deepstacked broiler litter 10 : bakery by-product 22.5 barley bran 22.5. In conclusion, FWM rotary drum-pasteurized and cured had a satisfactory feed-nutritional value far growing pigs.

  • PDF

A Case Study of Decreasing Environment Pollution Caused by Energy Consumption of a Dormitory Building Which Only Using Electricity by Efficiently Simulating Applying Residential SOFC (Solid Oxide Fuel Cell)

  • Chang, Han;Lee, In-Hee
    • Architectural research
    • /
    • v.21 no.1
    • /
    • pp.21-29
    • /
    • 2019
  • Recent years in Korea, some new developed buildings are only using electricity as power for heating, cooling, bathing and even cooking which means except electricity, there is no natural gas or other kinds of energy used in such kind of building. In vehicle industry area, scientists already invented electric vehicle as an environment friendly vehicle; after that, in architecture design and construction field, buildings only using electricity appeared; the curiosity of the environment impact of energy consumption by such kind of building lead me to do this research. In general, electricity is known as a clean energy resource reasoned by it is noncombustible energy resource; however, although there is no environmental pollution by using electricity, electricity generation procedure in power plant may cause huge amount of environment pollution; especially, electricity generation from combusting coal in power plant could emit enormous air pollutants to the air. In this research, the yearly amount of air pollution by energy using under traditional way in research target building that is using natural gas for heating, bathing and cooking and electricity for lighting, equipment and cooling is compared with yearly amount of air pollution by only using electricity as power in the building; result shows that building that only uses electricity emits much more air pollutants than uses electricity and natural gas together in the building. According to the amount of air pollutants comparison result between two different energy application types in the building, residential SOFC (Solid oxide fuel cell) is simulated to apply in this building for decreasing environment pollution of the building; furthermore, high load factor could lead high efficiency of SOFC, in the scenario of simulating applying SOFC in the building, SOFC is shared by two or three households in spring and autumn to increase efficiency of the SOFC. In sum, this research is trying to demonstrate electricity is a conditioned environment friendly energy resource; in the meanwhile, SOFC is simulated efficiently applying in the building only using electricity as power to decrease the large amount of air pollutants by energy using in the building. Energy consumption of the building is analyzed by calibrated commercial software Design Builder; the calibrated mathematical model of SOFC is referred from other researcher's study.

Vase Life and Quality of Cut Flower by Wet Solution according to Shipping Period and Temperature in Dendranthema grandiflorum 'Jinba'

  • Roh, Yong Seung;Kim, In Kyung;Yoo, Yong Kweon
    • Journal of People, Plants, and Environment
    • /
    • v.22 no.6
    • /
    • pp.583-591
    • /
    • 2019
  • This study was conducted to examine the effects of wet storage solution, transport period and temperature on vase life and quality of cut flowers in standard chrysanthemum 'Jinba'. Immediately after transport, the fresh weight and flower diameter of cut flowers did not show a difference according to wet storage solutions regardless of the transport period, but as the transport period increased, the fresh weight and flower diameter increased. The flower bud stage at harvest was maintained due to the small changes in flower diameter, and the freshness of leaves was better when transported at 5℃ than at 25℃. When transported at 25℃, the longer the transport period, the lower the quality of cut flowers as some petals opened up and showed early flowering after transport. In preservative solutions, quality of cut flowers transported at 25℃ was lower than that at 5℃ due to fresh weight and diameter according to the longer transport period. The vase life of cut flowers was 1.0 day, 0.8 day, and 7.3 days longer when transported for 3, 5, and 7 days respectively at 5℃ than at 25℃. The quality of cut flowers was better due to increase in fresh weight and flower diameter, as well as vase life in wet storage solutions of ClO2 and Chrysal OVB than in tap water, regardless of transport period and temperature. There was no difference in fresh weight and vase life between ClO2 and Chrysal OVB, but flower diameter was greater in ClO2 than in Chrysal OVB. Therefore, for long-term transport of cut standard chrysanthemum 'Jinba', wet storage transport in ClO2 at 5℃ was found effective in maintaining the quality and vase life of cut flowers.

A Conceptual Approach to Green Human Resource Management and Corporate Environmental Responsibility in the Hospitality Industry

  • TULSI, Paudel;JI, Yunho
    • The Journal of Asian Finance, Economics and Business
    • /
    • v.7 no.1
    • /
    • pp.195-203
    • /
    • 2020
  • Substantial growth in the economy and extensive use of natural resources has become a major issue in the modern world. Organizations have started to worry about the environment and are beginning to invest in and practice green strategies. Companies should be responsible for the environment and use sustainable methods to run their businesses. The main purpose of this study is to explore the conceptual approach to Green Human Resource Management (GHRM) practices and Corporate Environmental Responsibility (CER) in the hospitality industry. The theoretical framework of GHRM practices such as green recruitment, green selection, green training and development, green performance appraisal, green reward and compensation, and corporate environmental responsibility have been comprehensively studied for this purpose. Green Human Resource Management in the hospitality sector is a less studied and rarely implemented phenomenon. The integration of GHRM and CER along with green competitive advantage and green supply chain management in hospitality is new concept in hospitality industry. Study suggests that Corporate environmental responsibility (CER) and Green Human Resource Management (GHRM) have a significant role in the hospitality industry. However, for sustainable development of tourism and hospitality, this concept should be capitalized with necessary research and development.