• Title/Summary/Keyword: new green

Search Result 2,250, Processing Time 0.027 seconds

Analysis of Waveguid Filter Using Green′s Absorbing Layer in three Dimension TLM Method (3차원 TLM 법에서 그린 흡수층을 이용한 도파관 필터의 해석)

  • 김병수;전계석
    • Journal of the Korea Institute of Information and Communication Engineering
    • /
    • v.5 no.5
    • /
    • pp.1001-1010
    • /
    • 2001
  • In TLM method, Discrete Green's function ABC have been used when improved the exactness of analyzing in wide frequency band. But this technology has a complicated process to apply absorbing boundary, which means it needs additional numerical analyzing process to obtain discrete Green's function data. so, In this paper, we propose new Green's absorbing layer for simple process to apply absorbing boundary. newly proposed Green's absorbing layer is produced by applying of loss operation, loading discrete Green's function with attenuation. A state of optimum absorbing would be obtained by relation between increasing rate of loss, attenuation constant and length of green's absorbing layer. and then Analysts of waveguide BPF is carried out using Green's absorbing layer within state of optimum absorbing, then this result is in corrective agreement with the result applying traditional discrete Green's function ABC.

  • PDF

A Case Study of Extensive Green Roof System for Tropical Climate in Malaysia

  • Kok, Kah Hoong;Jung, Kwansue;Sidek, Lariyah Mohd;Abidin, Mohd Roseli Zainal;Felix, Micah Lourdes
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2016.05a
    • /
    • pp.329-329
    • /
    • 2016
  • Rapid urbanization has taken environmental toll on the surrounding which can be witnessed by the advent of global warming and climate change. Driven by environmental needs, Green Building Index (GBI) was established in Malaysia to drive initiative to lead the property industry towards becoming more environmental friendly. Green roofs (roof with vegetated cover) as one of the assessment criteria of GBI, are gaining attention in the Malaysian society as a versatile new environmental friendly mitigation technology. This paper evaluates the qualitative and quantitative performances of an extensive green roof at Humid Tropics Centre under local tropical climate. Simulations showed that the extensive green roof system could reduce the peak discharge up to 26% in relation to impervious brown roof. Its reduction ability decreased for storms with intense rainfall. Increment of pH was observed for the green roof runoff and the runoff water quality ranged between class I and II under Water Quality Index (WQI). High concentrations of phosphate were noticed in the runoff samples and substrates (fertilized planting soil) might be the potential contributor. Findings indicate that there was a reduction of around $1.5^{\circ}C$ for indoor temperature of the building after installation of the extensive green roof.

  • PDF

A Type-2 Fuzzy Logic Base Maturity Model of Green IT Richness (유형-2 퍼지 논리 기반 그린 IT 깊이 성숙도 모델)

  • Moon, Kyung-Il;Kim, Chul
    • Journal of The Korean Association of Information Education
    • /
    • v.14 no.2
    • /
    • pp.273-283
    • /
    • 2010
  • Emergent process or behaviour can be seen in many places, from any multicellular biological organism to traffic patterns, cities or organizational phenomena in computer simulations. Similarly, the concept of 'Green IT' refers to the way complex systems and patterns arise inevitably among groups due to environmental concerns in real world. Green IT has good possibility to evolve as very chaotic system, in which the number of interactions between components increases geometrically with the number of components, thus potentially allowing for many new types of behaviour to emerge. However, when Green IT system regards as a complexity one, there exits some attractors to derive and control the system. In this context, this paper presents a new model based on type-2 fuzzy logic system to identify and assess the attractors of Green IT system which correspond to Reach-Richness matrix of Green IT.

  • PDF

Additive Effects of Green Tea on Fermented Juice of Epiphytic Lactic Acid Bacteria (FJLB) and the Fermentative Quality of Rhodesgrass Silage

  • Burrenok, Smerjai;Tamaki, Masanobu;Kawamoto, Yasuhiro;Nakada, Tadashi
    • Asian-Australasian Journal of Animal Sciences
    • /
    • v.20 no.6
    • /
    • pp.920-924
    • /
    • 2007
  • Two experiments were carried out on a laboratory scale. The first involved a study of the effect of green tea on characteristics of fermented juice of epiphytic lactic acid bacteria (FJLB). FJLB was treated with 50 g/L of green tea products as follows: new shoot powder (FJLB+N), leaf powder (FJLB+L), commercial powder (FJLB+P), sterilized new shoot powder (FJLB+SN), sterilized leaf powder (FJLB+SL) or sterilized commercial powder (FJLB+SP). FJLB without any additive was also prepared (Untreated FJLB). After incubation, the number of microorganisms in FJLB were studied. Subsequently, these FJLB were applied at 10 ml/kg to chopped rhodesgrass to study their effects on fermentation. Compared with untreated FJLB, the addition of green tea increased (p<0.05) lactic acid bacteria (LAB) and also aerobic bacteria counts in FJLB. At 60 d of ensiling, all the FJLB treated silages were well preserved, pH and butyric acid content were lower (p<0.001) and lactic acid was higher (p<0.001) than that of the control. Lactic acid content was significantly higher (p<0.001) with treated FJLB than with untreated FJLB. FJLB treated with sterilized green tea decreased (p<0.001) the pH and the lactic acid content was higher (p<0.001) than that in the unsterilized green tea silages.

A Study on Actual Condition Analysis of Solar Thermal System Demonstrative Enterprise in the J City (J시 태양열 시범사업의 실태조사.분석에 관한 연구)

  • Yoo, Dong-Chul;Lee, Doo-Ho;Lee, Eung-Jik
    • 한국태양에너지학회:학술대회논문집
    • /
    • 2011.04a
    • /
    • pp.80-85
    • /
    • 2011
  • As the instability of oil prices rose because of the situation in Libya, oil prices worldwide recorded the highest level due to the interference in supply. And so, in the 21st century, increasing efforts are being made to use clean new renewable energy centered on solar energy in accommodation of the cycle of nature instead of being reliant on the oil exporting nations. In order to reduce city energy internationally, the implementation of a low carbon city under the combined cooperation of industrial. construction, new renewable energy and transportation sectors with continuous development centered on low carbon green urban planning is now becoming established as the paradigm of the times. Recently, the government has begun carrying out the One Million Green Home Project, which is a project where the government with the goal of providing one million renewable energy homes by 2020 gives renewable energy subsidization for a partial amount of the standard unit price of installation when solar ray, solar heat, geothermal heat, small wind power or fuel cell energy is used. Thus, through this thesis which studies the state of and surveys the green village at Shingok-ri Songhak-myun Jaecheon-shi, it is the desire that the One Million Green Homes Project will be more efficiently developed and plans for improvement formed so that a high level of satisfaction in the product will be provided.

  • PDF

A New Rose Cultivar, 'Green Beauty' with High Yield (다수성 장미 신품종 '그린뷰티' 육성)

  • Lee, Young Soon;Kim, Soon Jae;Lim, Jae Wook
    • Korean Journal of Breeding Science
    • /
    • v.40 no.1
    • /
    • pp.72-75
    • /
    • 2008
  • A new rose cultivar, 'Green Beauty' was selected from the progenies of a cross between 'Qvarna' and 'Sky Line' by rose breeding team of the Gyeonggi-Do Agricultural Research and Extension Services in 1999. It was finally selected in 2005 after evaluation trials for five years (2001-2005). 'Green Beauty' was developed for a standard-type cut flower. 'Green Beauty' has good qualified flower of which color is fair orange-yellow and green. 'Green Beauty' produces $178stems/m^2$ in a year, and has 62 petals per flower. Vase life of the cultivar could be as long as 12 days. 'Green Beauty' has some good agricultural and marketing traits. Futhermore marketing-quality was good in some aspects. The cultivar was applied for a variety protection in 2006, and was released to commercial growers in 2007.

A Study on the Relation Between Environmental Regulation and Green SCM Utilization of Exporting SMEs in South Korea (환경규제와 수출 중소기업의 Green SCM 활용의 영향 관계에 관한 연구)

  • Kim, Chang-Bong;Sim, Su-Jin;Jung, Jae-Woo
    • Korea Trade Review
    • /
    • v.42 no.5
    • /
    • pp.183-211
    • /
    • 2017
  • Recently, as the environment-friendly factors has become more important than before. In other words, the new model in trade has emerged as an important issue. At the same time, environmental trade is emerging as a new barrier due to the increasing international trade environmental regulation linked with environment. International trade environmental regulation has a huge impact on the whole industry, so if you can not cope with it in a timely manner, you can suffer great damage. Therefore, global export and import companies are required to manage green supply chains, and companies need to reestablish strategic systems throughout supply chain management with renewed awareness of the importance of eco-friendliness in the international trade environment. In this study, we investigated how companies perceive international trade environment regulation and how this affects the use of Green SCM.

  • PDF

A New Green-Kerneled Glutinous Rice Mutant Variety, "Nogwonchalbyeo" Developed by Gamma Ray Irradiation (녹색찰현미로 이용 가능한 "녹원찰벼"의 돌연변이 육종)

  • Kang, Si-Yong;Shin, In Chul;Kim, Dong Sub;Lee, Geung-Joo;Kim, Jin-Baek;Lee, Deok Yul;Lee, Sang Young;Lee, Dong Jin
    • Korean Journal of Breeding Science
    • /
    • v.40 no.3
    • /
    • pp.303-307
    • /
    • 2008
  • We bred a new green-kerneled glutinous rice variety that can be cultivated in the whole area of Korea, because only one native green-kerneled glutinous rice cultivar, "Saengdongchalbyeo", has been cultivated in the southern coastal area due to its late heading. The seeds of "Saengdongchalbyeo" were irradiated with 200 Gy of gamma ray in 1995. A promising mutant variety, "Nogwonchalbyeo" ("Wonnong 17") was selected through line selection and regional yield trials. In particular, the new variety revealed at the earlier mid of August compared to that of "Saengdongchalbyeo", the early of September, and it was considerably tolerant to a field lodging due to its shortened culm length. Also, "Nogwonchalbyeo" had a higher ripened grain ratio and 1,000 grain weight compared to the original variety. The brown grain yield of the new variety was about 5.40 MT/ha, which was 11.3% higher than that of the original variety, in the regional yield trials at 3 different fields during 2000~2001. The brown and milled grains of the new rice variety contained 20 to 65% higher amount of total amino acids, respectively than that of the original and two checks. For chlorophyll -a, -b and total chlorophyll, the new variety showed nearly two-fold higher than the checks, and for the carotenoid, it had 5.3 - 7.6 times higher amount. These results showed that the new variety can be cultivated as a special green-kerneled glutinous rice with high functional compounds.

Study on Improvement Measures of Green Standard for Energy and Environmental Design for Expansion of Applying Green Roof - Focused on LEED in the USA and BREEAM in the UK - (옥상녹화 적용확대를 위한 녹색건축인증제도 개선방안 연구 - 미국 LEED 및 영국 BREEAM의 비교·분석을 중심으로 -)

  • Kim, Ji-Hyeon;Kwon, Hyuck-Sam;Kim, Jung-Gon;Lee, Bum-Sik
    • Journal of the Architectural Institute of Korea Structure & Construction
    • /
    • v.34 no.2
    • /
    • pp.75-82
    • /
    • 2018
  • Green roof in Korea has been recognized as part of landscape area and local governments enacted municipal ordinance for supporting green roof thereby assisting part of expenses spent for green roof within a range of budget for buildings which are eligible for the green roof support of existing buildings. However, it is necessary to enforce a regulation of mandatory green roof for new buildings in order to expand green roof application and provide a variety of assistances such as subsidy payment, tax relief, and mitigation of floor area ratio-related regulation as done in other advanced nations. In particular, LEED(Leadership in Environmental and Energy Design) in the USA applies additional point directly for green roof in terms of the reduction in heat island effects. For example, the following items are beneficial to have additional points: habitat preservation or restoration, external space, rainwater management, reduction in outdoor water usage, minimum energy performance, and optimum energy performance. In addition, the BREEAM(Building Research Establishment Environmental Assessment Method) in the UK specifies green roof as one of assessment items to be complied in terms of diversity of species. As such, LEED and BREEAM reflect direct and indirect effects of green roof on assessment criteria, which suggest a direction to green building certification criteria in Korea where only additional points are given for green roof according to soil depth.

Effects of Hot Water Extracts of Domestic Blue Mussel and New Zealand Green Lipped Mussel on Alcohol Metabolizing Enzymatic, DPPH Radical Scavenging, and Angiotensin Converting Enzyme Inhibitory Activities (국산 홍합과 뉴질랜드 초록입 홍합 열수 추출물의 알코올분해효소 활성에 미치는 영향 및 DPPH 라디칼 소거능과 Angiotensin Converting Enzyme 저해 활성)

  • Kim, Si-Kyung;Ok, Dul-Lee;Park, Eunju;Lee, Seung-Cheol
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.43 no.9
    • /
    • pp.1363-1368
    • /
    • 2014
  • The physiological activities of cultivated Korean blue mussel (Mytilus edulis) and New Zealand green-lipped mussel (Perna canaliculus) were analyzed and compared. Both hot water extracts of blue mussel flesh (BMF) and green-lipped mussel flesh (GMF) showed increased activities of alcohol dehydrogenase (ADH) and acetaldehyde dehydrogenase (ALDH). BMF showed increased ADH and slightly decreased ALDH activities compared to GMF. 1,1-Diphenyl-2-picrylhydrazyl radical scavenging activity of BMF was higher than that of GMF at the same concentration. BMF and GMF showed similar inhibitory activity against angiotensin converting enzyme at a concentration of 30 mg/mL. These results suggest that cultivated Korean blue mussel has similar physiological activity with New Zealand green-lipped mussel.