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        검색결과 58

        1.
        2023.10 구독 인증기관·개인회원 무료
        2022년 10월부터 2023년 5월까지 친환경 딸기재배 농가에서 점박이응애는 칠레이리애응애와 사막이리응애, 진딧물은 콜레마니진디벌을 대상으로 하는 천적처리구와 유기농자재를 사용하는 관행방제구에서 천적의 해 충 밀도억제 효과를 조사하였다. 천적처리구에서 점박이응애 성충 밀도는 잎당 1.5마리 이하, 알은 4개 이하로 관리되었고, 사막이리응애는 잎당 최대 0.4마리까지 증가하여 점박이응애 밀도억제에 많은 영향을 미친것으로 보인다. 반면, 관행방제구에서 점박이응애 밀도는 천적 방사구에 비하여 오히려 많은 발생량을 보였지만, 3월 9일부터는 사막이리응애의 증가와 유기농자재의 효과로 점박이응애 밀도는 급격하게 감소하였다. 진딧물 천적 처리구에서 진딧물 밀도는 1월부터 발생하였으며 3월 상순에 잎당 0.3마리까지 증가하였으나 이후 감소하였고, 콜레마니진디벌은 진딧물 발생이 많지 않아 3.9마리/㎡(2회) 방사하는 데 그쳤다. 한편, 관행방제구 포장의 진딧 물은 유기농자재의 영향으로 거의 발생하지 않았다.
        2.
        2023.10 구독 인증기관·개인회원 무료
        기후변화 위기에 대응하기 위하여 대한민국은 2030년까지 신재생연료 혼합비율(Renewable Fuel Standard, RFS)을 3.5%에서 8%까지 상향하기로 결정하였다. 국내에서 제조되는 신재생연료의 원료가 되는 바이오매스의 60%이상이 해외에서 수입하는 실정이며, 2030 탄소중립 및 RE100과 같은 바이오연료 사용증가 정책의 확대로 인하여 국내에서 제조되어 활용가능한 바이오매스의 확보가 절실하게 필요하다. 곤충은 높은 비율의 단백질과 지질을 체내에 저장하는 특징을 가지고 있으며, 곤충의 대량사육을 통하여 지질의 대량생산이 가능할 것으로 판단된다. 본 연구에서는 곤충의 대량사육환경에서 제조되는 지질을 원료로 하여 기후변화에 대응할 수 있는 바이오연료로의 전환 제조가능성을 확인하고자 하였으며, 이를 위하여 촉매공정을 통하여 디젤과 혼합하여 사용할 수 있는 수첨바이오디젤을 제조하여 그 특성을 분석하였다. 그 결과 곤충지질을 활용하여 수첨바이오디 젤로 전환가능함을 확인하였다.
        4.
        2022.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        홍잠은 숙잠(熟蠶)을 수증기로 익혀서 인간이 섭취할 수 있도록 제조한 다양한 건강 증진 효과가 있는 천연 건강 식품이다. 현재 표준 제조 방법은 수증기로 찐 홍잠을 보관과 판매의 편의를 위하여 급속 냉동하여 동결 건조를 진행하는 것이다. 그런데, 홍잠을 동결 건조하는 과정은 많 은 시간과 비용을 필요로 하여 홍잠 제품 가격의 인상 요인으로 작용하고 있다. 본 연구에서는 홍잠을 수증기로 찐 후 바로 균질 액으로 제조하여 분무 건조하면 분말 제조 비용을 절감할 수 있음을 발견하였다. 그리고 홍잠 균질 액에 식용 단백질 분해 효소를 첨가하여 분해시킨 후, 단 1회의 분무 건조로 제품을 제조할 수 있는 방법을 개발하였다. 특히 홍잠 균질 액이나 효소 분해 홍잠 균질 액은 바로 액상이나 젤리 형태로 일반 또는 환 자용 특수 의료 용도 식품에 활용이 가능함을 보여주었다. 본 연구에서는 생산비용이 감소된 홍잠의 가공 방법을 제안하며 이는 제품 생성의 단가 를 낮추어 제품의 대중화와 양잠 농가의 연관산업 육성을 불러올 것으로 기대된다.
        4,600원
        6.
        2022.09 구독 인증기관·개인회원 무료
        Potato is an important cash crop of Pakistan and widely cultivated in plains and mountains of Punjab. Khyber Pakhtun Khawa Gilgit Baltistan, on an area of 0.313 million hectares in summer, autumn and spring with an annual production of 07.9 million tons. In Pakistan potato yield is 25.2 tons per hectare, which is although above the world average but comparatively low as compare to the potential and other advance potato growing countries because of several reasons. Availability of healthy seeds and advance production technology are the major constraints to achieve the higher potato production goals. It is very alarming that in spite of good position in potato growing countries, we are unable to produce good quality seed. In Pakistan >01% quality seed is available against the seed demand around 0.5-0.7 million tons per annum and mostly depend upon the imported seed 15000-20000 tons per annum. Tissue culture industry has been a proven global technology in potato seed production, so it is dire need of the growing population and climatic change to adopt these modern technologies of potato production for sustainable and higher production and income to contribute potato growing farmers of Pakistan. It is possible with the commercial use of tissue culture and allied techniques as aeroponic potato seed production along with good management and plant protection measures to provide indigenous high vigor and high yield potential potato seed. Pakistan Agricultural Research Council has established Aeroponic Potato Seed Production facility at National Agricultural Research Center with the collaboration of Korean Govt RDA-KOPIA Pakistan. The Aeroponics is a modern technology for growing plants by providing a nutrient solution in the air without soil. Plants grow rapidly in the growth chamber under the aseptic environment, balanced nutrition and sufficient oxygen availability that improves potatoes production in the aeroponic system. This can produce 10 times more yield than conventional production systems. Aeroponics techniques are credited for making potato yield more efficient, and can reduce the number of steps in the potato seed multiplication. Through tissue culture and aeroponics facilities development in Pakistan, first ever more than 200,000 nucleus mini harvested at NARC from the autumn 2021 and spring 2022 planation at KOPIA screen houses. Further seed multiplication from the harvest is under progress at up hills and more than 500,000 tubers (G1) are expected to be harvested during October-November 2022. It is very encouraging, impressive and successful venture of KOPIA at Pakistan for the potato seed production and self-sufficiency to insure food security in the country.
        7.
        2021.10 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The strengthening of environmental regulations has raised interest in alternative energy and electric car. Secondary batteries are such energy storage device, and in this study, a secondary batteries production equipment parts will be manufactured. To this end, molds were designed and manufactured using numerical analysis. The reliability of analysis is to be confirmed through tensile tests and X-ray tests of products cast with manufactured molds. As the results of the casting method design parts was obtained as the average ultimate tensile strength of 178.23N/mm2, 173.85N/mm2 was recorded and good test results were achieved. It is considered that aluminum alloy research and heat treatment technology development should be carried out in the future.
        4,000원
        9.
        2019.09 KCI 등재 구독 인증기관 무료, 개인회원 유료
        The Transgenic livestock can be useful for the production of disease-resistant animals, pigs for xenotranplantation, animal bioreactor for therapeutic recombinant proteins and disease model animals. Previously, conventional methods without using artificial nuclease-dependent DNA cleavage system were used to produce such transgenic livestock, but their efficiency is known to be low. In the last decade, the development of artificial nucleases such as zinc-finger necleases (ZFNs), transcription activator-like effector nucleases (TALENs) and clustered regulatory interspaced short palindromic repeat (CRISPR)/Cas has led to more efficient production of knock-out and knock-in transgenic livestock. However, production of knock-in livestock is poor. In mouse, genetically modified mice are produced by co-injecting a pair of knock-in vector, which is a donor DNA, with a artificial nuclease in a pronuclear fertilized egg, but not in livestock. Gene targeting efficiency has been increased with the use of artificial nucleases, but the knock-in efficiency is still low in livestock. In many research now, somatic cell nuclear transfer (SCNT) methods used after selection of cell transfected with artificial nuclease for production of transgenic livestock. In particular, it is necessary to develop a system capable of producing transgenic livestock more efficiently by co-injection of artificial nuclease and knock-in vectors into fertilized eggs.
        4,000원
        11.
        2018.07 구독 인증기관 무료, 개인회원 유료
        Introduction This paper investigates the implementation possibilities of the Industry 4.0 systems within the production of fashion luxury goods by collecting the opinion of the managers and the perception of the potential customers. The results indicate that technologies 4.0 can be implemented within luxury fashion production without affecting the quality of the finished product. However customers are negatively prevented against them. Therefore, giving the present situation of the fashion industry, now more demanding than ever, it would be appropriate to implement such systems without disclosing it to customers. Theoretical development With this research we aim to demonstrate that in the world of luxury fashion production there is room, if not the need, to implement the technologies of the Industry 4.0 without affecting the quality of the final product. We believe it is crucial that the luxury environment starts to seriously consider the Industry 4.0 as the former, in recent years, has become ever more challenging. Since luxury has become more accessible to masses, customers are no longer content just by getting the product, they often want it before the general public has it or fully customized to distinguish themselves. This implies a reduction of production times together with multiple rearrangements of the entire production process. Which is why we need to start thinking about Luxury and Industry 4.0. The concept of Industry 4.0 started developing with the exponential involvement of technological means during production processes of any kind. The term describes the model of the “smart” factory of the future where computer-driven systems “monitor physical processes, create a virtual copy of the physical world and make decentralized decisions” based on self-organization mechanisms (Smith, 2016). The goal of the industry 4.0 is to reach a deeper interconnection and cooperation between the available resources and the final customer; it’s a multiple layer engagement composed by complex machines, people, products, information within the production sight and all along the value chain (Tolio, 2016). The implementation of such systems allows achieving better levels of efficiency and contributes to increase the competitive advantage; it is a revolution that involves a company at all levels from the production centers to human resources. Although luxury fashion is a quite peculiar industry, all its processes are still very much cyclical and could benefit from the help of such implementations. The main technologies that are often quoted as being at the core of the Industry 4.0 are IoT (Internet of Things), big data, additive manufacturing, 3D printing, augmented reality and new generation robots. All this may seem too futuristic for an industry such as luxury that has always been associated with craftsmanship. When defining luxury in fact, one of the qualities attributed to this kind of products is the “strong connection with the past proven by the tradition handed down over time” (Dubois, 2001); a description that can be taken quite literally as the heritage of the brand is built upon the traditions passed on by the different artisans who crafted the product. But if we fraction the production process and analyze it in depth, we will see that it is cyclical, and that some of its parts may benefit from such technologies that would make it leaner without affecting the quality of the end product. An example of this can be seen in the laser cutting machines for leather. A robot can cut the elements required to compose a bag in a few minutes, while it would take up to half an hour to do it by hand. Even if mechanically cut though, the bag will still need to be assembled by a highly skilled artisan to become the exceptional quality product that customers expect to see in stores. Many are afraid that technological implementations will lead to the disappearance of the artisanal component failing to understand that the Industry 4.0 is not about complete automation but rather about human-machine interaction. Talking about production we will refer to the process in its integrity, from the sketches to the products in the stores. Research design The research was conducted using semi-structured interviews to questiont professionals who work in different stages of luxury fashion production for different companies. All the interviewees were chosen among the industry biggest players: LVMH, Kering, Richemont, Hermès, Chanel and others. To establish the sample of interviewees we divided the production process into four main phases and then identified at least one professional to question for each one of them. The subdivision we applied was the following: ⦁ Phase 1 - Creation & Design ⦁ Phase 2 - Production & Merchandising ⦁ Phase 3 - Retail & Marketing ⦁ Phase 4 - Supply Chain & Distribution Each interviewee was asked a set of specific questions related to the complexities of their job and the problems encountered while doing it (Appendix 1). Among the sample there were two professionals that did not belong to the production process but that we deemed necessary to involve to have a more complete outcome. One is a Professor of Fashion design at the Politecnico of Milan, the other is a Strategic Planning Analyst who works for Lectra, one of the biggest companies producing technologies for fashion. In order to investigate the perception of the customers we distributed a multiple choice survey to a heterogeneous sample of 200 people. Among the questions asked one was strictly related to the use of technology while the others regarded arguments, related to its utilization, that emerged while interviewing the professionals. Despite not being directly on the use of technology, we deemed the other queries important to evaluate if the problems emerged from the interviews were relevant also from a customer point of view. The questions submitted via survey were the followings: 1) On a scale of 1 to 4, (1= low interest, 4=high interest) how interested are you in luxury goods? 2) How much worth is being able to buy a luxury good before it is on sale in stores? (1= not worth, 4= very worth) 3) Would you think of higher quality a bag completely handcrafted rather than the very same bag produced also by using industrial processes? 4) Would you attribute a higher value to a luxury product conceived to be respectful for the environment? The survey ended up highlighting that customers have a negative bias towards the exploitation of such systems within the production of luxury goods. In fact they attribute a higher value to completely handcrafted products, without considering the possibility that the latters may have more defects. The methodology used was successful in helping us understanding the opinion of the management along with the perceptions of the customers. Moreover, through the interviews we were able to highlight practical daily problems encountered by people directly involved in the production process. Results and conclusion We used the problems that arose as bases to begin thinking what could be concretely implemented, in which phase and with what goal. We started by focusing our attention on five points that currently challenge production and could be exploited as opportunities for the implementation of specific technology. Nevertheless, we also highlighted three main limits that might prevent the application of said technology. The opportunities of implementation were the following: Production times - Representing one of the biggest problems in the industry, we believe that technology could come to the rescue especially in the first two stages of the process. For example, the use of 3D printing to produce some prototypes or certain components that could be useful for reducing time and costs. Another example is Modaris 3D, a new generation software that allows you to digitize the pattern allowing you to see it in 3D. Exploiting this software would allow to predict the potential problems of the prototype before even crafting it and would help save a lot of time and resources. Not to mention that digitized patterns can be archived and easily reused later. Moreover, the exploitation of the new generation robots to pre-cut certain components would once again allow a shorter production time and reduce costs. Couterfeiting - Another implementation opportunity is represented by counterfeiting. Now that online commerce is booming, the fake industry is at its peak and people find it difficult to distinguish between what is real and what is not. IoT technologies could help immensely with this problem. One of the interviewees working in the distribution phase told us that today when the products are shipped, in order to track them down and recognize them from counterfeits, companies install into their pockets RFID chips, small chips similar to those of credit cards. Their limitation though is that they can be traced or recognized only if scanned. The use of IoT technologies on this type of device (for example, providing the same type of support with a GPS) would allow them to be interactive and serve their purpose even better when the products are shipped all over the world. Sustainability - In recent years the problem of sustainability has become increasingly relevant, to the point that some luxury empires have been built on it, as in the case of Stella McCartney. To pay more attention to the environmental cause, fashion houses could start by wasting less resources. One way to do this could be to use software to optimize pattern placements on fabrics or on leather. Human supervision would still be required, as some pieces need to be cut from specific parts of the leather but it would certainly help in making some useful proposals. Internal communication – Internal communication is a problem at all levels of the production process. It can be an issue especially when it comes to communicating the intentions of the design team to the production and controlling the stock level in real time. In the first case, to solve the problem, we could consider the implementation of a software like PLM (Product Life Management). This type of program helps to follow the transformation from sketches to prototypes to products, providing detailed information on everything that is present on the garment, specifying consumption and costs of materials. With regard to the inventory control problem, we could again use the help of the IoT. Inventory control is a problem both in terms of raw materials (for all those houses that produce prototypes internally) and finished products. In the first case a potential solution could be to label the raw materials with magnetic labels that would allow to see immediately when the components leave the stock. In the second case, as previously mentioned, supplying the finished products with IoT chips would help to locate them and know how many are in stock. Demand forecast – Another major help that industry 4.0 could bring to fashion production is the exploitation of big data to forecast the demand. Nowadays in fact, the constant and hardly predictable changes in fashion heavily affect a demand that already has few reference standards. When it comes to forecast, several factors have an impact on it: trends, social medias, consumption habits etc. The most unpredictable of these factors is probably represented by the social media as clients may cause a peek in demand after seeing a celebrity or an influencer wearing a specific product. Giving all this, it's evident how the more variables we are able to consider when doing forecasts, the better the chances of predicting a scenario close to reality and Big Data would allow to do so. As previously mentioned we also highlighted some limits that could prevent implementation: Costs - The more significant limit when talking about this kind of technology is related to costs. It is important to consider both the ones needed to purchase the technology as well as the ones to train the employees in order to make the implementation possible. As we all know technology is extremely expensive, and in a certain way a form of luxury itself, often being just for few. The size of the brand would modulate of course the amount of the investment in it. Client perception & adverse attitude – The survey pointed out that clients are negatively biased towards technology and, if informed that the product has been realized with the help of technological means, may attribute to it a lower value. What it's necessary to keep in mind though, is that, when taking a survey, you are in front of a screen and not in front of the products. I believe in fact that if a "blind" test was conducted presenting two products of which one completely handcrafted and the other realized by artisans who exploited technological means as well, no one would be able to tell the difference. Training of employees - Another big challenge in the implementation of such systems is the training of the employees. Implementing these technologies for some employees may mean learning again how to do their job with the help of a computer. Being an environment where youngsters are outscored due to the lack of experience, this may represent a problem. In conclusion our research proved that there is indeed room to implement the 4.0 systems as the issues emerged can be partially, if not completely, solved by introducing these technologies making the process leaner and more efficient. Nevertheless, giving the fact that customers are negatively biased towards their use, it would be appropriate avoiding to disclose the information with them.
        4,000원
        12.
        2017.10 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called “smart agriculture” is changing the landscape of agriculture. Precision Agriculture’s core container production for the mushroom cultivation temperature, humidity, irradiation, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. The Lentinula edodes (shiitake) is an edible mushroom native to East Asia, which is cultivated and consumed in many Asian countries. It is considered a medicinal mushroom in some forms of traditional medicine. The fungus was first described scientifically as Agaricus edodes by Miles Joseph Berkeley in 1877. It was placed in the genus Lentinula by David Pegler in 1976. We controlled different light source (Blue-Red-White combined LED, blue LED, red LED and fluorescent light) with different intensity of LED irradiation (1.5, 10.5, 20.5 μmol/m2s for LEDs) to compare growth and development. Lights were treated with 12 hour on/ 12hour off cycle maintained in a controlled room with 19 ~ 21oC temperature, 80~90% humidity, and 1,000 ppm CO2 atmosphere concentration for 30 days. Growth and development differed from the LED color source and intensity of LED irradiation. Growth and development was most effective in 10.5 μmol/m2s for blue LED. All LED light sources showed less growth and development in lowest intensity of irradiation, which indicates that higher than 1.5 μmol/m2s for LED is not effective. After harvesting fruit bodies, we measured their weight and length, thickness of pileus and stipe, chromaticity, and hardness. 10.5 μmol/m2s blue LED group was the best result of harvest with average individual weight (24.7g) and length (61.98mm), thickness (29.93mm) of pileus and length (33.60mm), thickness (16.86mm) of stipe with fine chromaticity, hardness. This results show us that 10.5 μmol/m2s blue LED was the best effect on growth and development of Lentinus edodes (shiitake) mushroom’s ICT system container type environment.
        13.
        2017.10 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called “smart agriculture” is changing the landscape of agriculture. Precision Agriculture’s core container production for the mushroom cultivation temperature, humidity, irradiation, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. Auricularia auricula-judae, known as the Jew's ear, wood ear, jelly ear or by a number of other common names, is a species of edible Auriculariales fungus found worldwide. The fruiting body is distinguished by its noticeably ear-like shape and brown colouration. The fungus can be found throughout the year in temperate regions worldwide, where it grows upon both dead and living wood. We controlled different light source (Blue-Red-White combined LED, blue LED, red LED and fluorescent light) with different intensity of LED irradiation (1.5, 10.5 and 20.5 μmol/m2s for LEDs) to compare growth and development. Lights were treated with 12 hour on/ 12hour off cycle maintained in a controlled room with 19 ~ 21oC temperature, 85~95% humidity, and 1000ppm CO2 atmosphere concentration for 30 days. Growth and development differed from the LED color source and intensity of LED irradiation. Growth and development was most effective in 1.5 μmol/m2s irradiation for blue LED. All LED light sources showed less growth and development in highest intensity of irradiation, which indicates that higher than 20.5 μmol/m2s for LED is not effective. After harvesting fruit bodies, we measured their weight, length, width, thickness and chromaticity of fruit bodies. 1.5 μmol/m2s blue LED group was the best result of harvest with average individual weight (5.38g), length (65.37mm), width (56.87mm) and thickness (13.51mm) with fine chromaticity. This results show us that 1.5 μmol/m2s blue LED was the best effect on growth and development of Auricularia auricula-judae mushroom’s ICT system container type environment.
        14.
        2016.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        Timing, place, and the high-tech industry to overcome barriers to the introduct of the so-called “smart agriculture”. The core factors of precision agriculture, including temperature, humidity, location information, and real summary information, are all significant for ICT controlling technique. The system is a four-season container allowing mushroom product, humidity, illumination, and factors such as carbon dioxide were regulated to create the optimal environment for mushroom cultivation. Hericium erinaceum (also called Lion's Mane Mushroom, Bearded Tooth Mushroom, or Bearded Tooth Fungus) is an edible and medicinal mushroom in the tooth fungus group. During approximately 40 days of incubation, 1.4 kg of oak sawdust was used as the test medium. The humidity, temperature, and CO2 density were maintained at >85–95%, 18–20oC, and 700–1,000 ppm, respectively, in the container type culture system. The time for primordium formation was observed to be 4–7 days. The amount of fruitbody production was 74–95 g per bag. This technique will be used to establish a new community support program, in conjunction with international movement, domestic sales and exports are also planned.
        3,000원
        15.
        2016.11 구독 인증기관·개인회원 무료
        Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called "smart agriculture" is changing the landscape of agriculture. Precision Agriculture's core temperature, humidity, location information, and summary information in real time, all significant ICT controlling technique. The system is a four-season container production for the mushroom cultivation temperature, humidity, illumination, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. Hericium erinaceum (also called Lion's Mane Mushroom, Bearded Tooth Mushroom, or Bearded Tooth Fungus) is an edible mushroom and medicinal mushroom in the tooth fungus group. Native to North America, Europe and Asia it can be identified by its tendency to grow all the spines out from one group (rather than branches), long spines (greater than 1 cm length) and its appearance on hardwoods. About 40 days of incubation 1.5kg oak sawdust was used as the test medium bag. The humidity was maintained more than 85~95% and temperature was 18~20°C, and CO2 density was 500~1,000ppm. The days for primordium formation showed us 6~12 days. The amount of fruitbody production was 110~260g per bag. This technique to establish new community support program in conjunction with the international movement, domestic sales and exports are also planned.
        16.
        2016.05 구독 인증기관·개인회원 무료
        본 연구에서는 역삼투(RO)와 축전식 탈염(CDI)을 이용하여 수돗물로부터 초순 수의 제조 가능성을 살펴보았다. 수돗물의 pH를 조정하여 RO 모듈에 통과시킨 후 RO 처리수를 곧바로 CDI 단위 셀에 공급하여 처리수의 비저항을 측정하였 다. 수돗물의 pH를 4.5-10.0 범위로 조절한 후 RO 모듈에 공급한 결과 pH 8.9 에서 94.6%의 염 제거율을 나타냈다. 또한 pH가 7.2, 8.5, 9.0인 유입수를 RO-MCDI 시스템에서 탈염한 결과 처리수는 각각 0.73, 3.2, 10.0 MΩ⋅cm의 비저항을 나타냈다. 도출된 운전조건을 바탕으로 RO-MCDI 시스템의 장기운전 에 따른 안정성을 검토하였다. 흡착과 탈착과정을 30회 반복하는 동안 안정적으로 10 MΩ⋅cm의 초순수를 제조할 수 있었다.
        17.
        2016.05 구독 인증기관·개인회원 무료
        바이오부탄올은 우수한 연료 물성과 기존 연료 인프라를 그대로 사용할 수 있는 장점을 가진 차세대 바이오연료이다. 하지만, 전통적인 바이오부탄올 생산 기술은 낮은 발효 수율과 생산성 그리고 낮은 농도와 이에 따른 높은 분리에너지 비용 등의 기술적 한계를 가지고 있어, 상업화를 위해서는 이러한 한계를 극 복할 새로운 기술 개발이 요구되고 있다. 최근 새로운 발효, 분리 공정 기술의 개발, 적용을 통해 기존 기술의 한계를 극복하고자 하는 연구가 많이 진행되고 있으며, 투과증발기술은 유망한 대안 중 하나로 평가받고 있다. 본 발표에서는 바이오부탄올 생산기술 개발에 있어 투과증발 기술의 적용, 연구 사례를 공유하고자 한다.
        18.
        2015.11 KCI 등재 구독 인증기관 무료, 개인회원 유료
        배추속은 전세계적으로 재배되는 중요한 경제작물을 포함하고 있으며, 종의 진화 및 배수성 연구를 위해 학문적으로 중요한 가치를 가지고 있다. 그러나 대부분의 작물이 교잡육종을 통해 종자를 생산하기 때문에 고정 계통을 육성하는 데 많은 시간과 노력이 필요하다. 이러한 문제점을 해결하기 위하여 인위적인 방법으로 반수체 식물체를 유도하여 형질이 고정된 계통을 단시간에 육성함으로써 연구 및 육종 소재로 활용할 수 있는 다양한 기내배양법이 시도되었다. 본 논문에서는지금까지 배추속 작물에서 시도된 기내배양법의 연구현황을살펴보고 반수체 생산에 영향을 미치는 요인들을 조사하여 효율적인 반수체 생산 기술에 대한 정보를 제공하고자 하였다.
        4,000원
        19.
        2014.06 구독 인증기관·개인회원 무료
        Information and communication technology(ICT) around the world in the 21st century presents a new vision of agriculture. Time, place, and the high-tech industry to overcome barriers to the fusion of the so-called "smart agriculture" is changing the landscape of agriculture. Precision Agriculture's core temperature, humidity, location information, and summary information in real time, all significant ICT controlling technique. The system is a four-season container production for the mushroom cultivation temperature, humidity, illumination, self-regulation, such as carbon dioxide, the optimal environment for mushroom cultivation was implemented. Hericium erinaceum (also called Lion's Mane Mushroom, Bearded Tooth Mushroom, Hedgehog Mushroom, Satyr's Beard, Bearded Hedgehog Mushroom, pom pom mushroom, or Bearded Tooth Fungus) is an edible mushroom and medicinal mushroom in the tooth fungus group. Native to North America, Europe and Asia it can be identified by its tendency to grow all the spines out from one group (rather than branches), long spines (greater than 1 cm length) and its appearance on hardwoods. The humidity was maintained more than 85~90% and temperature was 16~18℃, and CO2 density was 500ppm. The days for primordium formation showed us 7~12 days. The width of pileus was 77~115mm. The length of pileus was 43~72mm. The spine was 11~14mm. The amount of fruitbody production was 125~240g per bag. This technique to establish the agricultural sector of Official Development Assistance (ODA) projects and new community support program in conjunction with the international movement, domestic sales and exports are also planned.
        20.
        2013.12 KCI 등재 구독 인증기관 무료, 개인회원 유료
        피셔-트롭쉬 합성 반응은 촉매 표면에서 합성가스 (CO+H₂)를 탄화수소로 전환하는 반응이다. 코발트 또는 철계 촉매는 친환경적인 디젤 연료를 생산할 수 있고 합성가스의 전환율이 높은 촉매로 알려져 있다. 피셔-트롭쉬 반응에 사용되는 촉매의 활성은 촉매 표면에서의 활성점에 의존적이다. 활성점은 활성 물질의 크기, 담지량, 환원율, 지지체와 활성물질의 상호작용에 의해 결정된다. FT 촉매 제조 방법으로 활성물질의 크기를 조절하는 등의 새로운 방법들이 시도되고 있다. 여기에서는 촉매의 제조 방법과 환원 특성을 비롯한 촉매의 형태와 반응 조건을 포함한 반응기 형태에 대해 알아보겠다.
        4,600원
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