‘Baekjung’ adaptable to high temperature was made by crossing between monokaryon derived from selfing of brownstrain and monokaryon derived from Korea white strain. In the condition that temperature is maintained at 10oC without lowtemperature of 4oC suppressing treatment and wrapping during cultivation period, it showed good productivity thanUri1ho(control). The optimum temperature of mycelial growth was 30oC and that of fruiting body initiation and developmentwere 14oC and 7oC, respectively. The days for the fruiting and yield were 7days and 277±11.2g per 1,100ml bottle,respectively. This variety needed high concentration of carbon dioxide up to 4,000 ppm for the good quality.
The purpose of this study is to improve the ammonia (NH3) emission inventory estimation in the domestic CAPSS (Clean Air Policy Support System). Currently, the ammonia emissions rate is obtained by multiplying the activity (number of livestock) by emission factors. The amount of movement and treatment are not considered in the estimation of ammonia emission rates. However, livestock manure is currently moved and treated in accordance with the energy recycling policy. In this study, the new emission estimation method were suggested considering the moving and treatment characteristics of livestock manure. A new ammonia emissions was calculated for Bcity and Y-gun at Chungcheongnam-do province. It was shown that the moving and treatment ratio of ammonia emissions were 4.3% and 8.4%, respectively. Furthermore, this ratio would be increased rapidly with the continuous establishment of large-scale manure treatment facilities.
The aim of this study was to investigate kinematic mechanism of gait different road conditions(dry vs. oil) in order women. For this study, twenty older women and ten young women participated in this research. twelve infrared cameras were used to collect data. It appeared that the gait strategies of older women were slower velocity and higher CoM than young women. Depending on road conditions, gait velocities of dominant muscle older women on dry surface were faster than dominant sense older women, but those of them were inverse on oil surface. The slip displacement of dominant muscle older women was less than young women, but the slip displacement of dominant sense older women was greater than young women. In case of blind during stance phase on oil surface, the rotational motion of the ankle and knee joints were increased. In conclusion, older women were subjected to self-organization theory and phase shift in dynamic theory.
The in vitro experiment was conducted to ensure the supplemental level of spent Flammulina velutipes mushroomsubstrates (SMS) as an energy source in manufacturing of whole crop sorghum silage. Sorghum harvested at heading stage wasensiled with spent mushroom substrates of 20% (S-20), 40% (S-40) and 60% (S-60) as fresh matter basis for 6 week. Theexperiment was conducted by 3, 6, 9, 12, 24, 48 hrs of incubation time with 3 replications. The silages were evaluatedfermentation characteristics and dry matter digestibility (DMD) in vitro. The pH of in vitro solution was inclined to decrease withelapsing the incubation time, and that of the S-20 was significantly (P<0.05) lower than the other treatment at 48 hr ofincubation. Gas production was greater (P<0.05) in the S-20 than the other treatments at 6 and 12 hrs of incubation. Themicrobial growth in vitro was inclined to decrease following 24 hr of incubation, and thereafter sustained the similar levels. Invitro dry matter digestibility (IVDMD) was lowered by increasing the supplemental level of spent mushroom substrate, and was alow level in the S-60 throughout whole incubation time. Althoughthe IVDMD for S-40 was steadily increased from 9 hr ofincubation and reached to similar level with the S-20 at 48 hourof incubation, however SMS for whole crop sorghum silagefermentation might as well add about 20 to 30% in fresh matterbasis when considering DMD.
The study examined the relationship between workers’safety awareness, safety performance and the components of the intelligent image analysis system in accordance with preventing the workers from safety hazard in dangerous working area. Based on the safety performance model, we include safety knowledge, safety motivation, safety compliance and safety participation, and we also define three additional factors of the intelligent image analysis system such as functional feature, penalty and incentive by using factor analysis. SEM(Structural Equation Modeling) analyses on the data from the total of 73 workers showed that functional feature of intelligent analysis system and incentive were positively related to safety knowledge and safety motivation. And mediation effects of the relationship were verified to safety compliance and safety participation through safety knowledge as well.
This study examined how smart device applications affected elementary school students who have learning difficulties in English. Five 6th grade students who needed remedial instruction were selected and given 50 hours of instruction using English vocabulary flash cards in a smartphone application. one hundred vocabulary words were chosen and developed for flash cards for the students to examine their intellectual and emotional changes in English learning. The research results showed that the students' vocabulary improved in listening, reading and speaking. It also revealed that the students gained confidence and interest in English learning, and their anxiety decreased. In addition, the application was easy and convenient for the students to use, especially in recognizing the pronunciation and the meaning of the vocabulary words. This study recommends further development and use of smart device applications for elementary school English instruction.
This paper is to analyze an integrated production and inventory model in a single-vendor multi-buyer supply chain. The vendor is defined as the manufacturer and the buyers as the retailers. The product that the manufacturer produces is supplied to the retailers with constant periodic time interval. The production rate of the manufacturer is constant for the time. The demand of the retailers is constant for the time. The cycle time of the vendor is defined as the elapsed time from the start of the production to the start of the next production, while the cycle times of the buyer as the elapsed time between the adjacent supply times from the vendor to the buyer. The cycle times of the vendor and the buyers that minimizes the total cost in a supply chain are analyzed. The cost factors are the production setup cost and the inventory holding cost of the manufacturer, the ordering cost and the inventory holding cost of the retailers. The cycle time of the vendor is investigated through the cycle time that satisfies economic production quantity with the production setup cost and the inventory holding cost of the manufacturer. An integrated production and inventory model is formulated, and an algorithm is developed. An numerical example is presented to explain the algorithm. The solution of the algorithm for the numerical examples is compared with that of genetic algorithm. Numerical example shows that the vendor and the buyers can save cost by integrated decision making.
A missile defense system is composed of radars detecting incoming missiles aiming at defense assets, command control units making the decisions on weapon target assignment, and artillery batteries firing of defensive weapons to the incoming missiles. Although, the technology behind the development of radars and weapons is very important, effective assignment of the weapons against missile threats is much more crucial. When incoming missile targets toward valuable assets in the defense area are detected, the asset-based weapon target assignment model addresses the issue of weapon assignment to these missiles so as to maximize the total value of surviving assets threatened by them. In this paper, we present a model for an asset-based weapon assignment problem with shoot-look-shoot engagement policy and fixed set-up time between each anti-missile launch from each defense unit. Then, we show detailed linear approximation process for nonlinear portions of the model and propose final linear approximation model. After that, the proposed model is applied to several ballistic missile defense scenarios. In each defense scenario, the number of incoming missiles, the speed and the position of each missile, the number of defense artillery battery, the number of anti-missile in each artillery battery, single shot kill probability of each weapon to each target, value of assets, the air defense coverage are given. After running lpSolveAPI package of R language with the given data in each scenario in a personal computer, we summarize its weapon target assignment results specified with launch order time for each artillery battery. We also show computer processing time to get the result for each scenario.
Objective : The purpose of this study was to investigate the effects of Expiratory Muscle Strength Training (EMST) on the suprahyoid muscle activation and swallowing function of stroke patients.Methods : This study randomly assigned 21 stroke patients to an experimental group and a control group. Four-week EMST was performed at resistance of 70% of the maximum expiratory pressure with the experimental group and at resistance of 20% of that with the control group. Evaluation was conducted using surface Electromyographic (sEMG), Videofluoroscopic Dysphagia Scale (VDS), and Penetration-Aspiration Scale (PAS) based on Videofluoroscopic Swallowing Study (VFSS).Results : There was a statistically significant difference in the activation of the suprahyoid muscles using sEMG of the experimental group (p<.05) while there was no significant difference in that of the control group. Both group showed significant difference in the pharyngeal phase of VDS and PAS. Also in the comparison of variation in VDS and PAS before and after the intervention, there were statistically.Conclusion : Finding from this study confirmed that EMST applied 70% maximum expiratory resistance would be a remedial method which could help activate pharyngeal dysphagia patients’ suprahyoid muscles and improve swallowing function.
A series of injection and drainage test were conducted on an circular acrylic tube to investigate the pressure generated by the accumulated fill materials inside a circular acrylic tube structure. The acrylic tube was filled by means of gravity filling with a slurry material having an average water content of 700%. The water head during the filling process was 1.8m and the bottom pressure during initial filling was 20.18kPa. The recorded stress at the sides of the acrylic tube was 17.89kPa during the filling process and was reduced to 13.58kPa during the leaving process. Continuous drainage of the acrylic tube has greatly influenced the stresses around the tube structure. As the water is gradually allowed to overflow, the generated pressure at the topmost pressure sensor of the tube was reduced further to 2.17kPa. Eventually, the initially liquid state slurry material transforms into plastic state after water has dissipated and substantial soil particles are deposited in the acrylic tube. The final water content of the deposited silt inside the acrylic tube after the test was 42%. It was found that the state of stresses(geo-static earth pressures) in the acrylic tube was anisotropic rather than isotropic.
이 글은 기존의 논문을 인용하는 방식이 아닌 사회적으로 중요한 문제에 대한 입법의 방향을 제시하기 위하여 본인이 참여한 공청회 등의 내용에 기초한 현실참여적인 논문이다. 특히 우리나라에서는 각종 민자도로에서 처 음 예측이 잘못되어 부당하게 높은 사용료징수에 대한 비판이 일자 이를 해결하기 위하여 이익공유제(통행료인하명령)라는 제도가 도입되었다. 이익공유와 같은 핵심적인 사항 을 공익상의 이유로 형식은 계약이지 만 이익이 있다면 자금재조달의 경우에 이익 공유를 하여야 하는 것이라 면 이는 실질적으로는 강제적으로 제한하고자 할 경우에는 장관이 자의 로 제정·공포할 수 있는 고시 의 형식이 아니라, 법률유보원칙 에 따 라 국회가 정한 형식적 법률로써 규정할 것이 필요하기에 사회기반시설 에 대한 민간투자법 에 이익공유제에 대한 규정을 명확하게 규정하고 또 한 이익공유의 상한선과 하한선을 규정하여 최소한의 재산권을 보장하면 서 공익을 추구하는 절충방안이 검토되어야 한다고 보인다. 따라서 구체 적인 비율을 정하거나 현실적으로는 상한선과 하한선을 정하여 예측 가 능한 기준을 제시할 필요가 있다고 보이고 실제 운영에서 법치주의 핵심 인 예측가능성에 근거하지 않고 공무원의 자의적인 해석의 여지를 두게 한 부분도 문제가 있다고 보다. 그리고 미실현이익에 대한 현행의 제도는 실제 운영해 본 결과 생기는 실현이득에 한하여 공유하는 영국과 달리 문제가 있어 보이나 손싱공유 제가 도입된다면 그 문제는 해결될 수 있을 것이다. 이익공유제의 취지에는 공감하나 이익이외에 손실에 대해서는 규정에 대해서는 규정하지 않은 입법부작위는 위헌의 소지가 있다. 특히 본 사 안에서는 실제는 정부가 투자하여야 하지만 민간자본에 의해서 대신 공 공재투자라는 목적을 달성하려는 것으로서 실질적으로 민간자본의 공공 필요에 의한 재산권의 사용에 해당하기에 민간자본의 특별한 희생에 의 하여 실질적으로 정부와 국민이 혜택을 보고 있고 그 희생이 일반 기업 으로는 담당하기 어려운 심한 경우에는 손실보상의 필요성이 있고 이는 이익공유제에 대응하는 손실공유제내지는 손실보상제라고 할 수 있을 것 이다. 다만 이익공유제라는 실질적으로 강제적으로 투자이익을 가져가는 경우이기에 실질적 강제적이라고도 할 수 있다고 보여서 이는 법제도적 으로 정비하여야 할 본질적인 입법사항이기에 앞서 본 바대로 이익공유제를 법률에 규정하지 않고 기본계획에 규정한 것도 진정입법부작위이고, 손 실공유제도 같이 규정하지 않은 것도 진정입법부작위로서 법률로 규정하 여야 할 진정입법부작위로서 위헌의 소지가 있다고 보인다. 사회기반시설에 대한 민간투자법에 이익공유제와 손실공유제를 만들어 재정적자시대에 민간자본을 유인하여 soc투자가 활성화되어야 한다.
As a rapid proliferation of mobile system environment may induce a number of changes, NFC technology is also evolving, and it is being applied in many fields. In this paper, we propose a skin care technology inter-working smart communication devices. Without the use of expensive skin care device, a cosmetic container is implemented to have a smart function, used by the users over a long period of time. It acquires the user's biometric information from the smart container and transmits it to the user's terminal over a short-range wireless communication in order to provide counseling app information such as health care.
기후변화, 농업용수, 대기오염 등의 환경변화에 민감한 연구단지의 특성상 환경 자원의 이용이 용이해야 하나 현 농업기술원은 농업연구를 위한 환경 및 생태계 유지가 힘든 실정이다. 또한 지속 가능한 농업, 6차 산업화와 같은 새로운 패러다임에 입각한 기반시설을 수립하고 공공서비스의 효율적인 공급을 위해서는 경상북도농업기술원의 이전이 불가피하다. 이에 따라 농업기술원 이전을 위한 입지이론 및 방법을 검토하고 입지여건 분석을 위한 입지선정 기준을 제시하는 것이 본 연구의 목적이다. 따라서, 먼저 공공시설 이전에 관한 입지이론에 대해 알아보았고, 입지선정을 위한 연구방법으로 후보지 여과방법을 사용하였다. 후보지 여과방법에는 요인별 점검법, 나뭇가지 모양분석법, 혼합형 분석법이 있는데 본 연구에서는 요인별 점검법을 바탕으로 하여 입지기준을 제시하였다. 이에 따라 입지선정 기준으로 경제성과 개발의 용의성, 접근성과 편의성, 농업여건, 토양여건, 인력자원 지원이 가능한 곳 그리고 연계성과 형평성이 고려되었다.
This study was performed to estimate biomass and to provide management plan through population ecological characteristics, including survival rate, instantaneous coefficient of natural and fishing mortalities, and age at first capture of Flathead grey mullet, Mugil cephalus, in the coastal waters of Yeosu. Survival rate (S) of the flathead grey mullet was 3.671. The instantaneous coefficients of natural mortality (M) and fishing mortality (F) was estimated to be 0.325 /year, 0.962 /year for flathead grey mullet. Also fist capure age of flathead grey mullet was 3.61year. The current biomass of the flathead grey mullet in the study area was estimated to be 19.6 M/T and F0.1 and F40% were estimated 0.340 /year, 0.225 /year. For the stock assessment result, flathead grey mullet was not overfished but overfishing.
The hydro–acoustic technology has been widely used in not only South Korea but also many foreign countries for various scientific purposes. Unfortunately acoustic data especially collected from field surveys may contain noises caused by a variety of sources. Therefore, it is exceedingly important to eliminate noises when acoustic data are analyzed to derive quantitative results. This study introduced two methods for eliminating noises easily and effectively using post–processing software. Used acoustic data were collected on the Jinhae bay and Tongyeong coast of the South Sea in April 2015. The first method, that is the Wang’s method, placed emphasis on ‘erosion filter’ to eliminate only data samples contaminated by noises. The second method (Yamandu’s method) focused on the ‘resample by number of pings’ to remove pings contained noises. To substantiate the effectiveness of two methods, the mean Sv (Volume backscattering strength), mean height and depth of the fish schools detected were compared between before and after using the noise elimination methods. In the Wang’s method the mean Sv was decreased from –52.4 dB to –52.9 dB, and in the Yamandu’s method from –52.6 dB to –53.3 dB, indicating that noises were successfully eliminated. The mean height (1.5 m) and depth (19.0 m) were same between before and after using two methods showing that the shapes of fish schools were not changed.
Fishing trend and characteristics of Korean tuna purse seine fishery in the Pacific Ocean were investigated using logbook data compiled from captain onboard and the statistical data from 1980 to 2013. The historical catch of this fishery had sharply increased since mid–1980s, and it has shown fluctuations with about 2–3 hundred thousands, whereas the catch per number of vessel has steadily increased with fluctuations since commencing this fishery. As for the proportion of catch by set type, unassociated type had increased from the mid–1980s to the end of 1990s, and then has decreased up to 2010s. Associated type had decreased continually to the end of 1990s, however, it started to increase since the beginning of 2000s. As for the catch proportion of set type by main species, those of skipjack tuna and bigeye tuna showed higher in the associated type, whereas that of yellowfin tuna has the highest proportion in the unassociated type. Fishing distribution of Korean tuna purse seine fishery was concentrated on the area of 5°N~10°S and 140°E~180° through the decades. The monthly catch distribution by longitudinal zone of Korean tuna purse seine fishery expanded the most further to the eastward in September to October.
The study aims at a selective effect of the Grid and Window net in the shrimp beam trawl.The experimental trawling of the Proto type, Grid type and Grid and Window net type was performed in a sea area of Geo–je and Tong–yeong from Mar, 2006 to Apr, 2010. The obtained results are as follows; Catch per unit area (Number) of the Proto type net and Grid type net were 0.18/m2, 0.23/m2, respectively. The Grid type demonstrated 2.4% lower bycatch rate than the proto type (6.6% vs 4.2%, respectively). In addition, in terms of total weight, the bycatch rate of Grid type was 7.6% lower than the proto type (50.2% vs 42.6%, respectively). In the comparison of shrimp catch, the Proto type demonstrated better haul outcome (0.02 case/m2) than the Grid & Window type (0.02 case/m2). The Grid & Window net type demonstrated 16.4% lower bycatch rate than the Proto type (32.2% vs 48.6%, respectively). In addition, in terms of total weight, the bycatch rate of Grid & Window net type was 8.3% lower than the Proto type (85.9% vs 94.2% respectively).
본 논문에서는 PSC 거더의 Prestress를 관리하기 위하여 EM 센서를 활용한 PSC 텐던 긴장력 손실 관리 기법을 소개한다. PSC 거더는 콘크리트 거더에 Prestress를 도입함으로써 기존 콘크리트 거더보다 높은 성능을 가지며 보다 저비용의 거더 설계가 가능해 짐으로 현재 많은 교량에 사용되고 있는 거더이다. 그러나 PS 텐던의 긴장력 관리는 거더 성능 관리에 있어 매우 중요한 항목이나 현재는 시공시 설계 긴장력의 도입 여부만을 검증한 후 공용시에는 그 관리가 이루어지지 않는 실정이다. 이에 본 연구에서는 강자성 재료가 인장력에 따라 비투자율이 변화하는 특성을 이용하여 EM 센서를 이용해 PS 텐던의 투자율을 계측하여 PS 텐던의 긴장력을 계측하는 기법을 제안하였다. PSC 거더 내부에서 PS 텐던의 투자율을 계측하기 위하여 EM 센서 시작품을 제작하였으며 MTS 실험을 통해 PS 텐던으로 주로 사용되는 7연선 1가닥의 0, 40, 80, 120, 160, 200kN의 긴장력에 따른 투자율 변화를 계측하였다. 계측 결과 각 긴장력 단계마다 EM 센서를 통해 계측된 B-H Loop가 정량적으로 변화하는 것을 확인하였으며 계측된 투자율과 긴장력을 회귀분석한 결과 투자율과 긴장력은 선형 관계를 나타내었다. 이를 활용하여 EM 센서를 이용하여 PS 텐던의 긴장력 관리가 가능함을 검증하였다.