• Title/Summary/Keyword: 산업일지

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A Study on the Reinforcement Effect Analysis of Aging Reservoir using Grout Material recycled Power Plant Byproduct (발전부산물을 재활용한 그라우트재의 노후 저수지 보강효과 분석에 관한 연구)

  • Seo, Se-Gwan;An, Jong-Hwan;Cho, Dae-sung
    • Journal of the Korean Geosynthetics Society
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    • v.20 no.2
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    • pp.23-33
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    • 2021
  • In Korea, many reservoirs have been built for the purpose of solving the food shortage problem and supplying agricultural water. However, the current 75.6% of the reservoirs are in serious aged as more than 50 years have passed since the year of construction. In the case of such an aging reservoir, the stability due to scour and erosion inside the reservoir is very reduced, and if concentrated rainfall due to recent abnormal weather occurs, the aging reservoir may collapse, leading to a lot of damage to property and human life. Accordingly, each agency that manages aging reservoirs uses Ordinary Portland Cement (OPC) as an injection material and applies the grouting method. However, in the case of OPC, it may deteriorate over time and water leakage may occur again. And there are environmental problems such as consumption of natural resources and generation of greenhouse gases. So, there is a need to develop new materials and methods that can replace the OPC. In this study, an laboratory test and analysis were performed on the grout material developed to induce a curing reaction similar to that of OPC by recycling power plant byproduct. In addition, test in the field such as electric resistivity survey, Standard Penetration Test (SPT), and field permeability test were performed to analyzed to reinforcement effect and determine the possibility of using instead of OPC. As a results of the test, in the case of recycled power plant byproduct, the compressive strength was 2.9 to 3.2 times and the deformation modulus was 2.3 to 3.3 times higher, indicating that it is excellent in strength and can be used instead of OPC. And it was analyzed that the N value of the reservoir was increased by 1~2, and the coefficient of permeability (k) decreased to the level of 8.9~42.5%. showing sufficient reinforcing effect in terms of order.

Considerations of Countermeasure Tasks in the Fields of Forest and Forestry in Korea through Case Study on "The Nagoya Protocol (Access to Genetic Resources and Benefit Sharing)" ("유전자원의 접근과 이익공유(ABS)" 사례연구를 통한 국내 산림·임업분야 대응과제 고찰)

  • Lee, Gwan Gyu;Kim, Jun Soon;Jung, Haw young
    • Journal of Korean Society of Forest Science
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    • v.100 no.3
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    • pp.522-534
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    • 2011
  • The aim of this study is to draw forth the tasks for establishing the right of native biology in Korea through the case study on 'Access on genetic resources and Benefit Sharing'. For this purpose, this study decided on its research subject by selecting Hoodia, on which ABS treaty was made the most recently, through the examination of the representative ABS precedents on plant species. This study analyzed the process background of ABS on Hoodia, and compared & analyzed the ABS procedures of 'Bonn Guidelines' adopted by the 6th Conference of the Parties of the Convention on Biological Diversity in 2002 and Hoodia case. Together with the ABS major issues in common drawn as a result of this analysis, and "Nagoya Protocol" adopted by the 10th Conference of the Parties of the Convention on Biological Diversity, this study intended to shed a light on the impending tasks which Korea faces at present and its role relationship. The research results are as follows: 1. It is required that species habitats should be divided based on biological classification and its subsequent community should be established with the development of infrastructure such as a community's independent production, management and monitoring of bio-species. 2. There needs to be a designation of ABS National Focal Point for sharing of ABS-related general information, boosting of implementation of the relevant convention. 3. There needs to be the establishment of ABS convention system consequent on legislative, administrative, political procedures, and designation of the Competent National Authorities for the provision of the format of Prior Informed Consent (PIC) and Mutually Agreed Terms (MAT) and their contents assessment and confirmation. 4. There should be the establishment of integrated management system of ABS-related research and development of forest biological resources and its relevant research projects. 5. There should be information development through the distribution of responsibility and role between the ministries and offices concerned according to bio-resources, and there needs to be efforts in aiming for opening a working group of academic-industrial institutions for developing a mutually interchangeable system. 6. It's required that the efficient access between industrial circles and the people should be promoted by setting up ABS support center of biological resources in ministry and office's charge. 7. There should be a selection of a national supervisory organization for securement of the right of a local community and monitoring of ABS convention implementation, and a countermeasure system for preventing outflow of forest bioresources. Conclusively, it's judged that it will be possible to inquire into the countermeasures for the establishment of the native forest biology dominion through such research results.

Vietnam in 2016: The Situations and Prospects of Politics, Economy, and International Relations (베트남 2016: 정치, 경제, 대외관계의 현황과 전망)

  • LEE, Han Woo;CHAE, Su Hong
    • The Southeast Asian review
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    • v.27 no.1
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    • pp.163-191
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    • 2017
  • This article aims to review the recent, especially focusing on the year of 2016, situations and prospects of the Vietnamese politics, economy, and international relations. Politically, Vietnam completed the election of members for the National Assembly and organized new leadership at the 12th National Congress of the Vietnamese Communist Party in 2016. One characteristic of the new leadership is that the politicians, especially the members of politburo, from the North continue to occupy the position of majority. The other one is that the new leadership promised to carry out the restructuring of economy toward industries producing higher value-added commodities even though Vietnam industries admittedly need to accelerate present industrialization and modernization as a developing country under the seemingly contradictory slogan of "the development of market economy for socialism." The declared goals of the new leadership in Vietnam are inevitable in a sense since the development of Vietnamese economy has been heavily dependent upon Foreign Direct Investment(FDI) taking advantage of Vietnamese cheap labor and simultaneously it is evident that its future is unsecure if it maintains status quo. In fact, the Vietnamese economy has impressively showed high growth rate by the help of foreign capitals since 1990s despite the repetitive recessions of global economy but its growth is not likely to be sustainable anymore if it will not reduce foreign dependency and social economic inequality in a long term. In a short run, global economic recession, the financial and monetary policies of global powers, and recent protectionism and uncertainty of trade agreements will be three crucial variables to affect Vietnamese economy. In terms of international relations, Vietnam is continuously expected to practise the policy of checks and balances among the powerful countries. Vietnam has seriously disputed with China on islands sovereignty in the South China Sea and attempted to maintain close relationship with other powerful countries including especially America. However, mainly due to the new protectionism by the regime of American president Donald Trump, the Vietnamese government also need to keep close relationship with China increasingly for both economic and diplomatic security. Under the circumstances, Vietnam is expected to maintain more practical and balanced international relations.

Thailand in 2017: The Resurgence of "Sarit Model" and Thai-Style Democracy (2017년 타이: '싸릿모델'의 부활과 타이식 민주주의)

  • PARK, Eun-Hong
    • The Southeast Asian review
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    • v.28 no.2
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    • pp.213-247
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    • 2018
  • Thailand in 2017 the public sentiment has turned against the military government. The four pledges the military declared immediately after the 2014 coup, restoration of democracy, addressing of divisive politics, eradication of corruption, and stimulation of the economy have all failed. In the same year, however, Thai military junta began to recover it's diplomatic relationship with western countries including US and EU owing to promulgation of the new constitution endorsed by King Maha Vajiralongkorn and the lavish funeral of late King Bhumibol Adulyadej which was attended by huge number of condolence delegations from around the world including US Defense Secretary James Mattis. Since the 2014 coup, US has sanctioned the country under military junta led by General Prayuth Chan-o-cha for urging them back to the barracks. EU also joined this sanction measures. US signaled change in it's policy when General Prayuth got the chance to visit US and meet President Donal Trump in 2017. General Prayuth Chan-o-cha's military junta could start to restore it's reputation internationally. Domestically, he used absolute powers based on section 44 of the interim constitution, also guranteed in the new constitution. Oversea and national human rights groups have criticized that the interim constitution for permitting the NCPO, Thai military junta's official name, to carry out policies and actions without any effective oversight or accountability for human rights violations. On 1 December 2017, Thailand marked the one-year anniversary of King Maha Vajiralongkorn's accession to the throne as the country's new monarch, Rama X. In the first year of King Rama X's reign, arrests, prosecutions, and imprisonment under Article 112 of Thailand's Criminal Code (lese-majeste) have continued unabated in Thailand. NCPO has continued to abuse Article 112 to detain alleged violators and curb any form of discussion regarding the monarchy, particularly on social media. In this worsening human rights environment General Prayuth Chan-o-cha enforced continuously campaign like Thai-style democracy- an effort to promote largely autocratic 'Thainess' in such a way that freedom of expression is threatened. It is a resurgence of 'Sarit Model'. In the beginning of 2017 Thai military government raised the slogan of 'opportunity Thailand' in the context of 'Thailand 4.0' project which attempts to transform Thai economy based on industry-driven to innovation-driven for recovering robust growth. To consider freedom and liberty as a source of innovation, 'Thailand 4.0' led by 'Sarit Model' without democracy would be skeptical.

Research of the Neo-Confucianism and the development of Landscape painting in Song Dynasty (성리학(性理學)과 산수화(山水畵)의 발전에 관한 연구 - 송대를 중심으로 -)

  • Jang, Wan-sok
    • The Journal of Korean Philosophical History
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    • no.32
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    • pp.309-336
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    • 2011
  • There were various linking points that connect Li xue(Neo-Confucianism) to aesthetics in Song Dynasty as following. 1. The traditional moral as "pursuing pleasure of Kong-zi and Yan Hui" 2. Esteem of "life and vitality". Scholars of Li xue in Song regarded the pleasure of acting up to "benevolence" as a beauty, and this benevolence originated in the "heaven and earth; the universe". "Benevolence", that is to say, is name of the nature that continuous reproduction breed in an endless succession by "Yin-Yang the universe", thus the natural "life and vitality" of the "heaven and earth" as the matter of course is the perfect beauty. 3. An idea of "serene contemplation". Originally the "serene contemplation" belongs to discipline of "Li xue", however simultaneously this conception was entirely applicable to aesthetic point of view. 4. Cosmological consciousness. In the same manner, the "pleasure" which is moralistic and moreover aesthetic is indivisible from cosmic contemplation itself. Because of this point, the art and aesthetics of Song Dynasty self-consciously had the cosmological consciousness in its fullness. 5. Respect of beauty of nature. Scholars of "Li xue" considered as : no matter what "Li" or "Qi" that producing all things is "coming of itself", that is by no means artificially operated or prearranged in advance. Such standpoint was applied to creative art and made art of Song Dynasty esteem beauty of nature (coming of itself) exceedingly. 6. Laying stress on "disposition". Scholars of "Li xue" ordinarily valued much of "disposition of a sage", consequently this tendency influenced on aesthetics. "disposition" indicates the whole impression that one who has appearance and the inside(personality, temper, thought, etc.) gives to others. By putting that impression into practice of art and literature, it is to materialize the works of art as a unity of form and subject, also as an expression of human existence that breathed into one's sensibility on the whole. 7. Principles of "completing inquiry", "study the laws of nature by close access" of "Li xue". These principles made art and literature of Song Dynasty take a serious view of "Li" of all over the universe, so made them close investigate things, and after all have achieved very remarkable characteristic in art and literature, especially in paintings of Song Dynasty. Theory of painting in Song Dynasty had occupied considerably high position in Chinese aesthetic history. It was positively superior to former generations no matter what in quantity or in theoretical minuteness and its systematic level. Undoubtedly the Chinese theory of painting had been achieving development time after time since Song Dynasty. However if we could make a comparison it with every single period (ex. Yuan, Ming, and Qing Dynasties), there is no prominent period than Song Dynasty in theory of paintings. Song period had number of essays of Landscape painting.

Review of context & meaning of Jeongjeonje by Yi Hang-no (화서(華西) 이항노(李恒老)의 정전제(井田制) 주장과 그 함의(含意))

  • Park, Sung-soon
    • (The)Study of the Eastern Classic
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    • no.48
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    • pp.195-223
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    • 2012
  • Until now, I guess, many scholars misunderstood the characteristic of economic awareness of Yi Hang-no as if it was a modern nationalism or radicalism against Japanese anti-Korean insistences. But I think these opinions are out of historical attitude. So to understand Yi's economic awareness correctly, I think, We should focus on the traditional Confucian thought system at that time. As one method to reach the goal, I focused on the word, Jeong-jeon-je: Oriental equal land system. Yi Hang-no put the importance on Jeong-jeon-je to make utopia he dreamed of. Yi thought Jeong-jeon-je is the basis of equal society and strong state. Also Yi thought a moral society would be achieved by Jeong-jeon-je because the equal land system, so called Jeong-jeon-je provide peasants with equal lands, so it makes peasants stable in economic situation. Especially, Yi Hang-no put importance on that Jeong-jeon-je would raise moral consciousness of people because equal economic condition makes people wealthy, so people would be good men naturally. Yi Hang-no explain it in basis of Insim-Dosim-seol: a theory of two minds bad & good to be. Yi Hang-no thought equal economic condition is the basis of making people moral being. He thought Jeong-jeon-je was a basis of the condition. Reversely, Yi thought Western insists of trade was the beginning of making people fight for individual benefit, so it produces devil selfishness out of human mind. That was the reason that Yi Hang-no opposed the trade with Western Powers. Eventually Yi's assertion of embargo came out of his Insim-Dosim-seol. In this context, Yi's Jeong-jeon-je was insisted as a method to raise human moral consciousness.

Complete Genome Sequence and Antimicrobial Activities of Bacillus velezensis MV2 Isolated from a Malva verticillate Leaf (아욱 잎에서 분리한 Bacillus velezensis MV2의 유전체 염기서열 분석과 항균활성능 연구)

  • Lee, Hyeonju;Jo, Eunhye;Kim, Jihye;Moon, Keumok;Kim, Min Ji;Shin, Jae-Ho;Cha, Jaeho
    • Microbiology and Biotechnology Letters
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    • v.49 no.1
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    • pp.111-119
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    • 2021
  • A bacterial strain isolated from a Malva verticillata leaf was identified as Bacillus velezensis MV2 based on the 16S rRNA sequencing results. Complete genome sequencing revealed that B. velezensis MV2 possessed a single 4,191,702-bp contig with 45.57% GC content. Generally, Bacillus spp. are known to produce diverse antimicrobial compounds including bacteriocins, polyketides, and non-ribosomal peptides. Antimicrobial compounds in the B. velezensis MV2 were extracted from culture supernatants using hydrophobic interaction chromatography. The crude extracts showed antimicrobial activity against both gram-positive bacteria and gram-negative bacteria; however, they were more effective against gram-positive bacteria. The extracts also showed antifungal activity against phytopathogenic fungi such as Fusarium fujikuroi and F. graminearum. In time-kill assays, these antimicrobial compounds showed bactericidal activity against Bacillus cereus, used as indicator strain. To predict the type of antimicrobial compounds produced by this strain, we used the antiSMASH algorithm. Forty-seven secondary metabolites were predicted to be synthesized in MV2, and among them, fourteen were identified with a similarity of 80% or more with those previously identified. Based on the antimicrobial properties, the antimicrobial compounds may be nonribosomal peptides or polyketides. These compounds possess the potential to be used as biopesticides in the food and agricultural industry as an alternative to antibiotics.

Analysis on the Difference in Perception Between Policy Providers and Users on the Factors that Activate the Innovation Cluster: Focusing on the Case of Daedeok Innopolis using AHP (혁신클러스터 활성화 요인에 대한 정책공급자와 수요자의 인식차이 분석: 대덕연구개발특구 사례에 대한 AHP 조사를 중심으로)

  • Park, Hwogeun;Bae, Kwanpy
    • Asia-Pacific Journal of Business Venturing and Entrepreneurship
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    • v.16 no.3
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    • pp.105-119
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    • 2021
  • The innovation cluster is formed by cooperation and networking among a number of actors, including companies, universities, research institutes, government and other supporting organizations, but the main subject of innovation in the venture ecosystem, which can be said to be the core of the innovation cluster, is the enterprise. Therefore, enterprises in innovation cluster can be seen as a major user of the innovation cluster policy. In order for the policy to be executed smoothly, policy acceptance is important. However, existing research on policy prioritization tends to be centered on policy providers, so it is necessary to check them from the perspective of policy users. Accordingly, this study conducted discussions from a two-way perspective to establish the correct policy direction through a balanced perspective between a policy provider-centered top-down perspective and a policy user's bottom-up perspective. First, the factors for activating the innovation cluster (three factors in the first level and 14 factors in the second level) were derived through prior research and expert interviews. After that, the importance of the factors for activating the innovation cluster was analyzed using AHP (Analytic Hierarchy Process) for the policy provider group and the user group in the Daedeok Innopolis, a representative case of innovation cluster policy. As a result of analyzing the importance of the innovation cluster activation factors from the perspectives of policy providers and users, some similarities were also seen, but overall differences in mutual perception were found. It was found that the policy provider group focused on innovation creation factors, while the policy user group viewed innovation creation, clusters, and industrial location factors from a more balanced perspective. This study is meaningful in that it deals with both perspectives in a balanced way by expanding the targets from the existing policy provider-centered research to policy users. In addition, practical contributions exist in the aspect of providing basic data so that policies can be carried out based on corporate needs in fostering innovation clusters.

A Study on the Level of Citizen Participation in Smart City Project (스마트도시사업 단계별 시민참여 수준 진단에 관한 연구)

  • PARK, Ji-Ho;PARK, Joung-Woo;NAM, Kwang-Woo
    • Journal of the Korean Association of Geographic Information Studies
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    • v.24 no.2
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    • pp.12-28
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    • 2021
  • Based on the global smart city promotion trend, in 2018, the "Fourth Industrial Revolution Committee" selected "sustainability" and "people-centered" as keywords in relation to the direction of domestic smart city policy. Accordingly, the Living Lab program, which is an active citizen-centered innovation methodology, is applied to each stage of the domestic smart city construction project. Through the Living Lab program, and in collaboration with the public and experts, the smart city discovers local issues as it focuses on citizens, devises solutions to sustainable urban problems, and formulates a regional development plan that reflects the needs of citizens. However, compared to citizen participation in urban regeneration projects that have been operated for a relatively long time, participation in smart city projects was found to significantly differ in level and sustainability. Therefore, this study conducted a comparative analysis of the characteristics of citizen participation at each stage of an urban regeneration project and, based on Arnstein's "Participation Ladder" model, examined the level of citizen participation activities in the Living Lab program carried out in a smart city commercial area from 2018 to 2019. The results indicated that citizen participation activities in the Living Lab conducted in the smart city project had a great influence on selecting smart city services, which fit the needs of local residents, and on determining the technological level of services appropriate to the region based on a relatively high level of authority, such as selection of smart city services or composition of solutions. However, most of the citizen participation activities were halted after the project's completion due to the one-off recruitment of citizen participation groups for the smart city construction project only. On the other hand, citizens' participation activities in the field of urban regeneration were focused on local communities, and continuous operation and management measures were being drawn from the project planning stage to the operation stage after the project was completed. This study presented a plan to revitalize citizen participation for the realization of a more sustainable smart city through a comparison of the characteristics and an examination of the level of citizen participation in such urban regeneration and smart city projects.

Development of Heated-Air Dryer for Agricultural Waste Using Waste Heat of Incineration Plant (소각장 폐열을 활용한 농업폐기물 열풍 건조장치 개발)

  • Song, Dae-Bin;Lim, Ki-Hyeon;Jung, Dae-Hong
    • Journal of agriculture & life science
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    • v.53 no.5
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    • pp.137-143
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    • 2019
  • To manufacturing of solid fuel by reuse of the wastes, the drying unit which have 500 kg/hr of drying capacity was developed and experimentally evaluate the performance. The spinach grown in Nam-hae island were used for the experiments and investigated of the heated-air drying characteristics as the inlet amount of raw materials, raw material stirring status, conveying type and drying time. The drying air heated by the energy derived from the steam which is supplied from the incineration plant. The moisture contents of raw materials were measured 85.65%. The inlet flow rate of drying air made a difference as the depth of the raw materials loaded on the drying unit and temperature has showed 108~144℃. The drying speed of the mixed drying more than doubled as that of non mixed drying under the same drying type, inlet amount, drying time and drying air temperature. In each experiment, the drying capacity have showed over 500 kg/hr. A drying efficiency of the ratio of drying consumption energy to input energy was 33.46%, lower than the average of 57.76% for the 157 conventional dryers. Because developed dryer must have a drying time of less than one hour, it is considered that the dry efficiency has been reduced due to the loss of wind volume during drying. If waste heat from incineration plant is used as a direct heat source, the dry air temperature is expected to be at least 160℃, greatly improving the drying capacity.