• Title/Summary/Keyword: 공생적 관계

Search Result 121, Processing Time 0.027 seconds

An Exploratory Study on the Development of Evaluation Factors in Franchise System: Symbiosis Index (프랜차이즈 시스템의 평가 지표 개발을 위한 탐색전 연구 - 공생지수(symbiosis index)를 중심으로 -)

  • Choi, Sung-Sik;Kim, Hong-Seok;Ku, Bon-Hyuk;Lee, Weon-Ho;Na, Hwa-Sook;Han, Kyu-Chul
    • The Korean Journal of Franchise Management
    • /
    • v.1 no.1
    • /
    • pp.65-85
    • /
    • 2010
  • The key success factors for Franchise Enterprise as a virtual company which is established based on franchise system are the competitiveness of sub-systems in franchise system such as franchisor, franchisee, vendor(supplier), and customer, and to sustain the symbiotic relationship among sub-systems. In this regard, evaluating franchise system is considered to be implemented in different contexts and methods comparing with extant evaluation system in franchise business which is more focused on the relationship between franchisor and franchisee. The flagship role of establishing franchise system is to be franchisor system, however, the symbiotic relationship among other sub-system including franchisee, vendor, and customer leads to successful Franchise Enterprise. The purpose of this study is to research existing evaluation systems for franchise business and to explore the model of evaluating franchise system, what is called, "Symbiosis Index".

Advanced Treatment of Wastewater Using Symbiotic Co-culture of Microalgae and Bacteria (미세조류와 박테리아의 공생 배양을 이용한 하폐수 고도처리)

  • Mujtaba, Ghulam;Lee, Kisay
    • Applied Chemistry for Engineering
    • /
    • v.27 no.1
    • /
    • pp.1-9
    • /
    • 2016
  • The co-culture system of microalgae and bacteria enables simultaneous removal of BOD and nutrients in a single reactor if the pair of microorganisms is symbiotic. In this case, nutrients are converted to biomass constituents of microalgae. This review highlights the importance and recent researches using symbiotic co-culture system of microalgae and bacteria in wastewater treatment, focusing on the removal of nitrogen and phosphorus. During wastewater treatment, the microalgae produces molecular oxygen through photosynthesis, which can be used as an electron acceptor by aerobic bacteria to degrade organic pollutants. The released $CO_2$ during the bacterial mineralization can then be consumed by microalgae as a carbon source in photosynthesis. Microalgae and bacteria in the co-culture system could cooperate or compete each other for resources. In the context of wastewater treatment, positive relationships are prerequisite to accomplish the sustainable removal of nutrients. Therefore, the selection of compatible species is very important if the co-culture has to be utilized in wastewater treatment.

Archives and Writing (기록학과 쓰기)

  • Lee, Youngnam
    • The Korean Journal of Archival Studies
    • /
    • no.71
    • /
    • pp.169-236
    • /
    • 2022
  • This paper is a study on the relationship of archives and writing. Writing is an big issue these days. Archival studies need to be interested with writings. It's not just about writing skills. Archival studies have to try archiving more good relationships. Symbiotic approach can be worth the efforts. The main focus of this paper is on the writing in archives workshop. Archives workshop is a good place where writing and archiving have a symbiotic relationships. Writing is an archival try to invite the values of 'requests, inquiring after, observes, conversation' to archives. These archival practices can contribute the symbiotic approach to constructed archives.

PSYCHOPATHOLOGY IN ADOLESCENTS WITH PARENT ABUSE (부모학대 청소년의 정신병리)

  • Kwak, Young-Sook;Bang, Hyun-Soog
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
    • /
    • v.9 no.1
    • /
    • pp.13-25
    • /
    • 1998
  • Aim:We think that the most important etiology in parent abuse is the psychodynamic and psychopathology in the family. So, we investigated the adolescents being admitted in SNMH, whose chief complaints were parent abuse. We were trying to explore families psychodynamic and psychopathology, especially mother-child interaction and to differentiate them in according to developmental psychopathology. Method:Our objects were the adolescent patients admitted in SNMH from 1987 to 1997 because they attacked parents verbally and physically. We examined 21 adolescents except those with psychosis, organic mental disorder, autism and mental retardation by means of interview or chart review. Result and Conclusion:The number of male patients was 14 and the number of female patients was 7. The most common diagnosis was conduct disorder and borderline personality disorder. The mean age was in the mid-teens. We observed 4 subgroups that were divided developmentally in object relation. 1) Symbiotic group with mother:(1) They did not separate and remain in symbiotic relationships with their mothers based on insecure attachment. Fathers were abscent emotionally and physically, and their mothers were prominent in close relationships with the patients in their family , where as the patients were the only man in the family. Adolescents entered the second separation-individuation. They expressed anger and internal tension involved with the close attachment with their mothers and also attempted separation from their mothers through physically attacking them. (2) These patients had suffered from physical illness and developmental delay since birth. Therefore the parents overprotected their children. The children had persistent infantile omnipotence and fantasies of power, so they could not deal with unrealistic states, adapt to reality, and depended on their parents overtly. They easily acted out unless their demands were fulfilled. 2) Borderline personality disorder:We observed deficiencies in care taking. Their parents had personality problems and immaturity. They coulden’t help their children to be separated in the rapproachment phase. Their conflict about dependence-independence was revived in the second separation-individuation adolescent period. We understand parent abuse as an attempt to overcome the conflict. 3) Conduct disorder:They did not build up basic attachment with their parents. They think of their parents as only a means of fulfilling their needs. When patients’ need were not fulfilled and remained in a conflicted state, they attacked their parents, unable to control their aggressions and impulses.

  • PDF

Spatiotemporal change in ectomycorrhizal structure between Tricholoma matsutake and Pinus densiflora symbiosis (송이와 소나무간의 공생관계(共生關係)에서 외생균근(外生菌根)의 시(時)-공간적(空間的) 구조변화(構造變化))

  • Koo, Chang-Duck;Kim, Je-Su;Park, Jae-In;Ka, Kang-Hyeon
    • Journal of Korean Society of Forest Science
    • /
    • v.89 no.3
    • /
    • pp.389-396
    • /
    • 2000
  • To determine whether the Tricholoma matsutake (pine mushroom, Songyi) is symbiotic or parasitic to Pinus densiflora, structural change in their natural ectomycorrhizas were examined. The mycorrhizal samples were collected at three progressional points in the natural hypogeous colony(shiro) : colony front edge, near the fruiting point and 20cm back. The fine roots in the colonies were typical ectomycorrhizas with fungal mantle and Hartig net. However, the T. matsutake mycorrhizas had unique characteristics compared to other types of ectomycorrhizas. That is, spatially the fungal mantle and Hartig net of the T. matsutake mycorrhizas continued to develop along the growing tip, while temporally those structures declined to shrink changing to black brown in the older part of the roots behind the actively growing tip portion. However, there was no mark that the fungal hyphae penetrated into either the cortical cells, endodermal cell layers or stele. The apical tips of the blackened roots remained alive to form new mycorrhizas with other fungi later. Therefore, we conclude that the mycorrhiza of T. matsutake+P. densiflora is rather a dynamic symbiosis that changes its position spatiotemporally as the root grows than either a simple parasitism or symbiosis.

  • PDF

Identifying Potential Industrial Symbiosis through GIS Based Resource Circulation Information (GIS 기반 자원순환정보 구축을 통한 잠재적 산업공생관계 파악 연구)

  • Chung, Hyun-Wook;Park, Sun-Hyung;Kim, Jung-Hoon;Lee, Sang-Yoon;Park, Hung-Suck;Kwon, Chang-Ki
    • Journal of the Korean Association of Geographic Information Studies
    • /
    • v.13 no.3
    • /
    • pp.74-90
    • /
    • 2010
  • The objectives of this paper are to introduce the GIS based resource circulation information, and to identify additional(or potential) industrial symbiosis based on existing industrial symbiosis and linkage-pair of industry by material. The resource circulation information contains information of the reuse of materials, water, and energy for all manufacturing companies in Ulsan Metropolitan City. The information can further be classified into the three steps -- input information(raw materials), flow information (products), and output information (by-products). The survey data from 3,768 industries and institutions in Ulsan Metropolitan area were collected and built into the GIS to analyze the mechanism of the industrial symbiosis. The results of this study strongly suggest that there are some additional industrial symbioses using by-products(materials, steam, waste water) and further efforts should be given to make them more effective. We expect that the methodology of building the resource circulation information of this study can be helpful to other local governments that try to build similar system.

자판기 천적 관계를 조명한다

  • 한국자동판매기공업협회
    • Vending industry
    • /
    • v.2 no.7 s.8
    • /
    • pp.73-78
    • /
    • 2003
  • 자연계의 모든 생물은 대체로 천적이 있다. 생물은 언제나 많은 천적으로 둘러싸여 있으며 이로 인해 자연의 평형이 이루어지고 있다. 그런데 이런 천적관계는 비단 생물에 있어서만 적용되는 게 아니다. 자판기 분야도 그 외부환경 요인이라든가 경쟁 대상 품목 등에 있어 천적의 관계를 형성하고 있는 경우가 많다. 필수 불가결한 품목특성을 갖지 못하는 자판기 특성상 유난히 이러한 천적의 연결고리를 많이 찾아 볼 수 있다. 금호 기획취재에는 자판기의 천적 관계를 조명해 보는 시간을 마련했다. 이 천적관계도 산업의 발전을 막는 나쁜 면으로서 만이 아닌 싫든 좋든 공존 공생해야 하는 동반자적 관계이다. 이러한 측면에서 천적관계 조명을 통해 보다 자판기 산업의 자생력을 강화할 수 있는 계기를 만들고자 함이 본란의 기획취지이다.

  • PDF

VD Special-너와 나의 전략적 공유폴더

  • Korea Venture Business Association
    • Venture DIGEST
    • /
    • s.61
    • /
    • pp.12-13
    • /
    • 2004
  • 뜻한 바는 달라도 각자가 목표한 바를 이루기 위해서 경쟁자와의‘전략적 제휴’를 맺어야 할 때도 있다. 앞서는 기술력과 패기로 똘똘 뭉쳤다 해도 네트워크와 자금 등 기반 여건이 열세인 벤처기업들에게 무엇보다 필요한 것은 더불어‘공생하는 것’이다. 단순한 경쟁관계를 넘어 이제는 업종간의 전략적 파트너십으로 서로간의 이점을 나누는‘협력의 공유폴더’를 생성해보자.

  • PDF

Effects of Soil Environment on Symbiotic Activities of Arbuscular Mycorrhizal Fungi(AMF) in the Coastal Reclaimed Lands (Arbuscular Mycorrhizal Fungi(AMF)의 공생활성에 미치는 해안 간척지 토양환경의 영향)

  • Koh, Sung-Duk
    • The Korean Journal of Mycology
    • /
    • v.26 no.4 s.87
    • /
    • pp.562-573
    • /
    • 1998
  • The symbiotic activities of arbuscular mycorrhizal fungi (AMF) by analyzing spore density, symbiosis intensity and vertical distribution of AMF spores, phytomasses of higher plants such as Calamagrostis epigeios, Imperata cylindrica, Artemisia scoparia, Aster tripolium and Sonchus brachyotus, and physico-chemical properties of soil were determined in the rhizospheres of higher plants in abandoned two coastal reclaimed lands, which were constructed in 12 and 30 years ago, respectively. Vertical distribution of the AMF spores in the rhizospheres of higher plants was restricted within 20 cm depth from soil surface, which would be closely related with vertical distribution of root system, water table and soil aeration. Of vertical distribution of soil properties, W.C., A-P and K concentrations were increased as soil depth was lowered. In the coastal reclaimed lands, symbiotic activities of the AMF such as spore density and symbiotic intensity, were conspicuously stimulated by the increase of soil pH value, organic matter and total nitrogen concentrations, but inhibited by the increase of moisture, available phosphorus and sodium concentrations in the rhizosphere soil. Phosphorus absorption by higher plants growing in the reclaimed lands increased by the rise of symbiotic activities of AMF. Since symbiotic activities of AMF were stimulated with decreasing soil phosphorus concentrations, higher plants associated with AMF absorbed a large amount of phosphorus from the soil is low phosphorus concentrations.

  • PDF

Comparison on knowledge and practice of vocal hygiene among students majoring in classical and popular music vocals (성악전공 대학생과 실용음악전공 대학생의 음성위생 지식과 수행 비교)

  • Choung Seo Park;Jaeock Kim
    • Phonetics and Speech Sciences
    • /
    • v.16 no.2
    • /
    • pp.59-69
    • /
    • 2024
  • Due to differences in singing styles and voice production between classical and popular music singers, their knowledge and practice regarding vocal hygiene may differ. This study compared the knowledge and practice of vocal hygiene among 121 university undergraduate students (58 classical and 63 popular music vocal majors). Additionally, the correlation between the level of knowledge and practice of vocal hygiene and the subjective voice evaluation was examined. The results revealed that both knowledge and practice of vocal hygiene were significantly higher in classical than popular music vocal majors, and that vocal hygiene practice was significantly higher than knowledge in the entire group. In addition, there was a weak positive correlation between knowledge and practice of vocal hygiene; and a weak negative correlation between vocal hygiene practice and subjective voice evaluation. This study suggests that popular music vocal majors have relatively lower levels of knowledge and practice in vocal hygiene than classical music vocal majors. It also highlights the need to provide tailored vocal hygiene education programs for both classical and popular music vocal majors, as they show low levels of knowledge and practice in certain aspects of vocal hygiene.