기후변화로 인해 대기 중 이산화탄소 농도 (CO2)증가가 톱다리개미 허리노린재(Riptortus calvatus)의 화학통신에 미치는 영향을 알아보기 위해 실내 이산화탄소 농도를 600, 1000, 2000 ppm 수준 처리하여 조사하였다. 두 집합페로몬 성분인 (E)-2-hexenyl (Z)-3-hexanoate와 (E)-2-hexenyl (E)-3-hexanoate의 생산량은 우화 후 10일 된 수컷의 경우 대기 중 CO2가 높아질수록 증가하는 경향을 보인 반면, 우화 후 20일 된 수컷에서는 감소하는 경향이 나타났다. 교미율은 CO2 농도에 따라 큰 차이가 없었으나, 총 산란수는 1,000 ppm 이상 CO2 농도에서 높게 나타났다.

The hypopharyngeal gland (HPG) of the honeybee worker produces royal jelly (RJ) and has a developmental cycle closely related to the division of labor. In this study, we investigated to compare the HPG acini diameter of differently aged worker bees with high royal jelly producing colony (HRC) or less producing colony (LRC). Additionally, we also evaluated whether the fresh weight of the head is a reliable indicator of the developmental status of HPG. The HRC showed a significantly higher RJ production about two-times as compared with those of the LRC. We measured the HG-diameters on days 1, 3, 6, 9, 12, 15. The microscopic analysis revealed that the acini size of the HRC was significantly larger than the LRC. In addition, the acini diameter of HRC was 15% longer than the LRC on the first day after emerging. It was shown that the fastest development during 3 days which is preparing for nurse the brood. The HPG acini diameters increased in both colonies in a similar fashion until day 12 and then decreased. We also compared the fresh head weight of the experimental colonies, differences were similar to the development of HPG. Therefore, high royal jelly production may have a positive correlation between HPG acini size and the fresh head weight.

최근 전세계적으로 건강기능식품에 대한 사람들의 관심이 증가함에 따라 식용곤충에 대한 활발한 연구가 진행되고 있다. 국내에서도 식용곤충에 대한 활발한 연구가 진행되고 있으며, 그 중 흰점박이꽃무지는 동의보감에서 효능을 인정받아 식량자원으로써 연구되고 있다. 이에 근거하여 본 연구에서는 흰점박이꽃무지 성충의 먹이에 대한 선호도 조사와 사육키트 설계를 통해 생산성 증대를 꾀하고자 하였다. 흰점박이꽃무지 성충에 대한 먹이 선호도 조사는 단백질의 함량과 당도, 그리고 알부민의 함량을 달리하며 실험을 수행하였다. 단백질 함량의 실험의 경우 0 %, 1 %, 5 %, 10 %에 대한 연구를 진행하여 이 실험을 통해 단백질의 함량은 흰점박이 꽃무지의 먹이 선호도에 영향을 미치지 않는다는 것을 알 수 있었다. 당도의 경우 과일의 당도범위를 기준으로 하여 15 brix, 20 brix, 25 brix, 30 brix에 대한 실험을 진행한 결과, 20 brix가 흰점박이꽃무지가 가장 선호한다는 결론을 얻을 수 있었다. 또한 계란 흰자의 주요 단백질 성분인 알부민의 경우 0 %, 10 %, 15 %, 20 %에 대한 실험을 진행하여 알부민의 함량이 적을수록 선호도가 더 높다는 것을 알 수 있었다. 먹이에 대한 선호도조사를 사육키트 설계에 반영하여 흰점박이꽃무지 성충의 사육키트는 실제 사육장의 인터뷰를 참고하여 온도 28 °C와 습도 40%로 자동으로 조절되도록 설계하였다. 사육키트의 온도는 사육키트의 바닥에 부착된 전기 매트를 통해 조절하고 습도는 사육키트의 측면에 위치한 팬을 통해 조절된다. 또한 먹이를 간편하게 제공할 수 있도록 먹이배급장치를 별도로 설계하였다. 본 연구의 의의는 흰점박이꽃무지의 성충에 대한 먹이 선호도 조사와 사육키트의 설계를 통해 미래 식량자원으로 이용될 수 있는 흰점박이꽃무지의 생산성에 대한 연구를 제안한다는 점에 있다.

식품 중 곰팡이 이물에 대한 연구를 위하여 식품 제조 및 유통/보관현장에서의 곰팡이 오염수준 및 주요 곰팡이류를 조사하였다. 측정은 식품유형별 총 9장소 (젓갈류, 식초류, 쌀류, 밀가루류, 냉동만두류, 면류, 과자류, 육가공류, 김치류)와 유통/보관현장 총 8장소(물류 창고)에서 진행하였고, 각 생산라인에서 부유곰팡이, 표면 곰팡이 오염도를 조사하였다. 측정결과, 육가공류 생산현장에서 부유곰팡이 오염도가 가장 높게 측정되었으며, 김치류 생산현장에서의 부유곰팡이 오염도가 가장 낮게 측정되었다. 설비 및 벽면에서의 표면 곰팡이 오염도의 경우, 식품 제조 및 유통/보관 현장에 관계없이 거의 검출되지 않았다. 현장에서 검출된 주요곰팡이를 조사한 결과, Penicillium sp., Aspergillus sp., Cladosporium sp., 종이 우점종 곰팡이로 조사되었다.

The main objective of this experiment was to investigate effects of two different feeding systems on body weight, milk yield, milk composition, and mineral and fatty acids content of Holstein dairy cows’ milk. Sixteen of 25 months-old Holstein dairy cows were assigned to two groups (n=8) to study effects of the feeding system for 150 days. Two feeding systems were compared for five months; Group 1 was housed indoors and mainly fed a concentrate diet, Group 2 was maintained outdoors for five-seven hours/day on various kinds grass in a pasture. The experiment was conducted June-October 2017. Results revealed the indoor-fed cows had higher body weight, that was significant compared with the outdoor-based feeding system of Holstein dairy cows (p<0.05). Indoor-raised milking cows had higher milk yield (32.45 kg) as compared with pasture-raised milk yield (26.44 kg). Cows fed indoors significantly increased milk yield, total protein content, lactose, citric acid level, and lowered level of total solid and free fatty acids relative to the pasture-fed milking cows (p>0.05). There were higher levels of mineral content and fatty acid content in the milk of indoor-fed dairy cows than the pasture-raised dairy cows (p>0.05). Our study results demonstrated the potential benefits of the indoor feeding system for increased body weight, milk yield, mineral and fatty acids content summer through autumn when low pasture growth rates and quality may otherwise limit production.

본 연구는 열 스트레스 (heat stress, HS)에 노출된 산란계에서 혼합 생균제의 급여가 생산성, 계란품질, 면역반응, 맹장 미생물 및 분 암모니아에 미치는 효과를 조사하였다. 총 400마리의 50주령 Hy-Line brown 산란계를 무작위로 각각 100마리씩 4 그룹, C (대조군, 실온 25℃), HS (열 스트레스 33℃), HSP (HS 플러스 혼합 생균제 500, 750 mg/kg)로 배치하였다. 산란계의 생산성, 계란품질, 비장 무게, 혈액 IgG 및 lymphocyte 농도는 HSP 그룹에서 HS 그룹과 비교했을 때 증가하였고, 코르티코스테론, heterophil과 lymphocyte의 비율 (H:L) 및 폐사율은 유의하게 낮았다. Lactobacillus는 HSP 그룹에서 HS 그룹과 비교했을 때 증가하였으나 Escherichiacoli (E. coli), coliform bacteria 및 aerobic bacteria는 유의하게 낮았다. 분에서 암모니아 발생은 HS 그룹이 HSP 그룹에 비해서 유의하게 증가하였다. 결론적으로, 이러한 혼합 생균제가 여름철 산란계의 더위 피해를 방해주고 면역반응, 맹장 미생물 균형을 경유하여 생산성, 계란품질 및 계분으로부터 악취 발생을 줄이는 데 효율적인 영양전략이 될 수 있음을 나타낸다.

바이오항공유 제조 공정 내 수첨업그레이딩 공정의 운전조건 선정은 반응물로부터 얻고자 하는 주생성물인 탄화수소 화합물에 대하여 바이오항공유로서 원하는 탄소수 분포의 물성을 갖도록 하기 위한 중요한 인자이다. 본 연구에서는 식물성 오일 유래 노말 파라핀계 탄화수소 화합물에 대한 수첨 업그레이딩 반응이 0.5 wt.% Pt/Zeolite 촉매 하에서 수행되었으며, 이를 통해 크래킹 반응과 이성질화 반응이 동반됨으로써 바이오항공유로서 물성을 갖는 탄소수 분포인 C8-C16에 해당하는 노말 파라핀계와 이소 파라핀계가 혼합된 탄화수소류 화합물이 제조되었다. 반응온도, 반응압력, 반응물 몰비와 공간속도를 변화하여 얻어진 생성물의 수율 및 조성을 분석하였다. 상기 공정 조건에 대한 정보는 수첨 업그레이딩 반응특성의 이해뿐 아니라 향후 증류를 통한 바이오항공유 제조에 도움을 줄 수 있다.

본 연구에서는 정태적 패널모형 중 고정효과모형을 활용하여 지역 내 총생산액 대비 국유기업 생산 비중이 지역경제 성장에 주는 영향을 분석하였다. 기존 연구에 의하면 중국의 국유기업은 지속적인 개혁에도 불구하고 비효율적인 운영과 생산수준을 보이고 있으나, 지역별 개발정책에 따라 지역경제에 주는 영향은 상이할 것으로 생각된다. 이에 지역을 4대와 8대 권역으로 구분하여 분석하였다. 분석결과, 4대 권역에서는 동부지역만 국유기업의 생산비중과 지역경제 성장 간, 음(-)의 관계를 보였고, 동북부 및 중부, 서부에서는 양(+)의 관계로 나타났다. 8대 권역별 분석에서는 동부연해, 북부연해, 서남지역에서 국유기업 생산비중이 커질수록 지역경제 성장에 음(-)의 영향을 주고, 동북, 황하중류, 장강중류, 서북, 남부연해에서는 양(+)의 영향을 주는 것으로 분석되었다. 다만, 남부연해지역은 통계적으로 유의하지 않았다.

조선 왕실에서는 왕비나 세자의 책봉(冊封) 그리고 상존호(上尊號)를 위한 상옥책(上玉 冊) 의식을, 국가적 행사로서 성대하게 치르고 이를 의궤(儀軌) 기록으로 남겼다. ‘상옥책’ 은 왕실에 관한 공덕과 찬사의 글을 옥간(玉簡)에 새기고 이를 금분으로 메워서 옥책(玉冊) 으로 엮은 것을 올리는 의식이다. 즉 의식의 주된 내용이 옥책의 내용을 낭독하고, 이를 함 (函)에 담아 봉(封)하는 것으로 요약된다. 여기에 사용되었던 함은 二重의 함으로 내함(內函)과 외함(外函)으로 구성되어 있는데, 그 중 내함은 매우 특별하게 제작되었다. 주칠함(朱漆函)에 니금(泥金)으로 화려하게 장식 되어, 조선 시대 사가(私家)에서 사용한 함들과는 확연한 차이를 보였던 것이다. 그 내함이 국립고궁박물관에 250여점 현존하고 있다. 본 논문은 국립고궁박물관 소장 옥책 내함의 제작 시기를 밝혀보고, 이를 바탕으로 한 공예사적 회화사적인 변화양상과 옥책 내함이 의례품으로서 갖는 역사적 의미에 관한 발표자의 이전 연구를 바탕으로 하였다. 옥책 내함은 왕권 강화의 의미와 관련한 왕실공예품이며, 목 공예 금속공예 칠이나 섬유 공예, 니금 그림의 회화사적인 측면에 이르는 다양한 정보를 주는 중요 문화유산이라 할 수 있겠다. 이에 더하여 여기서 중점할 내용은, 옥책 내함의 시대별 변화양상을 동시대 제작으로 추정되는 내함 外의 다른 국가 제작 함(函)과 비교 검토하고자 하는 것에 초점을 두고자 하였다. 연구자의 앞선 연구에서 옥책 내함의 시기별 변화양상의 흐름을 밝힌 바 있는데, 그것은 뚜렷한 구분을 보이는 것이었다. 이것은 동시대 흡사한 제작 방식을 갖는 다른 목조함의 제 작시기를 추정하는 근거로 활용이 가능하다는 전제 하에 연구를 시도하였고, 이것은 제작시 기 파악이 어려운 목공예의 편년 연구에 기여할 것으로 생각된다. 아직은 한정된 수에 불과하여 그 연구의 시작이지만, 이를 바탕으로 앞으로 비교 대상의 확장과 더 나아간 다각도의 연구가 있기를 바란다.

본 연구는 홀스타인 젖소 201,327두의 1산에서 5산까지의 검정기록 총 388,747개를 이용하여 유생산 형질에 대한 유전모수를 추정하고자 수행되었다. 1산차의 검정기록이 전체자료의 51.8%를 차지하였으며, 산차가 증가할수록 검정기록의 수는 현저히 감소하였다. 1산차의 유량, 유지방량과 유단백량에 대한 유전력은 각각 0.28, 0.26과 0.23으로 추정되었으며, 산차가 증가할수록 유전력은 일괄적으로 감소 하였다. 유량, 유지방량, 유단백량에서 산차간 유전상관계수의 범위는 0.83~1.00, 표현형상관계수의 범위는 0.21~0.51로 유전상관계수보다 항상 낮게 추정되었다. 연간 표현형 개량량은 유량, 유지방량과 유단백량에서 각각 121.50kg, 4.45kg과 4.65kg, 연간 유전적 개량량은 각각 13.70kg, 0.33kg과 0.36kg이었다.

Contribution of Indonesia's economic creative to total Gross Domestic Product (GDP) increased for about 7.38%. To support the development, Indonesian Agency for Creative Economy continuous to improve its performance conducting a capacity building plan and one of them is through product innovation and promotion. In order to create innovation, there are many information and skill that individual party may not have. As a solution, collaboration can be the chosen strategy to develop innovation. The purpose of this study is to analyse the approaches, mapping stakeholders, and understand the operation in collaboration and promotion of Noesa as Indonesian fashion brand and Watubo rural artisans. The method used is exploratory analysis identify through the condition theory by Drucker (1993) with short ethnography study. The result of this research is to identify the effective and efficient approach to conduct collaboration between fashion brand and rural artisan, in production and promotion of indigenous fabric.

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.