International Journal of Industrial Entomology and Biomaterials
/
v.31
no.2
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pp.115-126
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2015
The tropical climate prevailing in India adversely affects temperate bivoltine silkworm rearing and causes crop loss especially during summer. Identification of high temperature tolerant bivoltine breeds by screening for thermotolerance in the silkworm, Bombyx mori (Lepidoptera: Bombycidae) is an essential prerequisite for the development of thermotolerant bivoltine breeds / hybrids. Therefore, in this study, 20 silkworm breeds were reared at different temperatures (25 ± 1℃,32 ± 1℃, 34 ± 1℃ and 36 ± 1℃) for 6 h every day from 3rd d of 5th instar to till spinning. Significant differences (p < 0.01) were found among all the rearing traits over temperature. Based on pupation percentage, SK4C and BHR3 were identified as thermotolerant bivoltine breeds. Hierarchical clustering analysis based on rearing traits at tested temperatures grouped 20 silkworm breeds in four clusters which included one cluster each of susceptible and tolerant, and two clusters of moderately tolerant silkworm breeds. This suggests that clustering based on rearing data at high temperatures by using Euclidean distance can be an effective approach in classifying the silkworm breeds on their thermotolerance capacity. The identified breeds would be used for development of thermo tolerant bivoltine silkworm breeds / hybrids.
The purpose of this study was to develop teacher-training for improvement of teaching efficacy of technology teacher. The study was carried out through Delphi research method. It was executed for investigating the professional and wide-range opinions of expert panel to examine the validity. The validity was confirmed by concurrence ratio, convergence ratio, contents validity ratio (CVR). Major results of this study were as follows: First, necessity, nature, purpose of teacher-training for improvement of teaching efficacy of technology teacher was set up. And this teacher-training have 12 objectives in 3 domains (cognitive, affective, psychomotor). Second, contents of this teacher-training were designed to be applicable for 10 modules (300 hours). For example, module1 (introduction of technology education), module2 (construction technology), module3 (information communication technology), etc. Third, educational method, training educator, evaluation method of this teacher-training were developed. Fourth, each module of this teacher-training is 30 hours in length. And summer or winter vacation is appropriate for this teacher-training time. Appropriate teacher-training time is six hours a day. Fifth, roles of educational institution for this teacher-training were suggested. Sixth, strategies to vitalize this teacher-training were suggested.
This study is a report about the two summer camps of 2009 and 2010, which were held by some gifted classes of Liberal Arts areas in Chungnam Province. The students' self- directed methods, making an own project topic and an outline plan for that by students themselves before the camp, raised up the students' satisfaction of the camp effectively. Staying with their peer students and teachers for 3 days gave the gifted students a chance for relationship, self-confidence, and self-sufficiency. These joint summer camps provided the students with cognitive development, motivations and a chance to meet other gifted students. Teachers' preparation for the camp, their concrete feedback to each student's project, and students' time spending on one's own camp project were correlated with the students' satisfaction of the camp program. Experience of teacher training in gifted education made significant differences in understanding gifted students and expectations of students' social and emotional development throughout and after the camp.
Kim, Kwonil;Lee, Ho-Woo;Jung, Sung-Hwa;Lyu, Geunsu;Lee, GyuWon
Atmosphere
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v.28
no.4
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pp.443-455
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2018
Nowcasting algorithms using weather radar data are mostly based on extrapolating the radar echoes. We estimate the echo motion vectors that are used to extrapolate the echo properly. Therefore, understanding the general characteristics of these motion vectors is important to improve the performance of nowcasting. General characteristics of radar-based motions are analyzed for warm season precipitation over Jeju region. Three-year summer season data (June~August, 2011~2013) from two radars (GSN, SSP) in Jeju are used to obtain echo motion vectors that are retrieved by Variational Echo Tracking (VET) method which is widely used in nowcasting. The highest frequency occurs in precipitation motion toward east-northeast with the speed of $15{\sim}16m\;s^{-1}$ during the warm season. Precipitation system moves faster and eastward in June-July while it moves slower and northeastward in August. The maximum frequency of speed appears in $10{\sim}20m\;s^{-1}$ and $5{\sim}10m\;s^{-1}$ in June~July and August respectively while average speed is about $14{\sim}15m\;s^{-1}$ in June~July and $8m\;s^{-1}$ in August. In addition, the direction of precipitation motion is highly variable in time in August. The speed of motion in Lee side of the island is smaller than that of the windward side.
School uniform has improved greatly in terms of fit, size, function, and design due to steep competition in the market and the strong interest of researcher, while little effort has been made for physical training uniform, so the objective of this study is to provide basic research data of the training uniform for the improvement of its design and fitness. For this purpose, 327 high school girls provided information on size and design of their uniform, level of satisfaction, the recognized ease in uniform. Most students wore the physical training uniform in another classes and the long sleeved shirt were the most popular one. They often used the uniform for the protection from cold and for comfortable activeness. For a long sleeved shirt, most students preferred raglan sleeve, zip-up collar, straight waist line, and ribbed sleeve cuffs and hem. For long pants, students preferred elastic waist band and ribbed pants cuffs. Currently, the short-sleeved shirt mostly had a shirts collar, ribbed hem, straight waist line with raglan sleeve, but students wanted a round neck and set-in sleeve. For overall level of satisfaction, students showed high satisfaction in terms of function and psychological effect, while aesthetic quality of the uniform was needed to be much improved. Most students evaluated that the circumference of uniforms properly fit or had a little ease, and students considered waist size the most suitable. The long pants length evaluated properly fit or a little long. Students accepted that the ease of summer uniform was more suitable than winter uniform's both at circumference and at length. Depending on students' height distribution, the length of long pants and short pants varied significantly.
International Journal of Industrial Entomology and Biomaterials
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v.24
no.2
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pp.69-74
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2012
Tropical tasar silkworm Antheraea mylitta Drury experiences extreme temperature stress conditions during its life cycle particularly during diapauses and first crop. The present study witnessed the impact of high temperature on some biochemical profiles and egg production (fecundity) of semi-domesticated Daba and Shorea robusta (Sal) based wild ecorace Laria during seed cocoon (pupa) preservation. Cocoons of Daba and Laria were treated with high temperature at $40^{\circ}C$ for 10 days in a BOD incubator. The protein profile and carbohydrate content in the hemolymph and fat body and total haemocyte count (THC) in the hemolymph of pupa were investigated. Further, the fecundity and fertility of egg was assessed. Significant increase in the protein concentration was observed in the hemolymph with reduction in the fat body (p<0.05). The difference in protein concentration was highly significant between the semidomesticated Daba and wild ecorace Laria (p<0.05). High pupal mortality (20%) and reduced fecundity (10-15%) in Daba was noticed compared to wild Laria. Also an increased THC (>28000) was recorded in Laria. The study infers the potentials of wild ecoraces in sustaining the extreme temperature conditions and need of adopting suitable package of practices for the preservation of diapause seed cocoons during extreme summer conditions. There is possibility to introgression thermal stress resistant traits in the semi-domesticated races of tasar silkworm by resorting to conventional breeding plans with wild races and keeping the thermal stress induced response as markers.
The purpose of this study lies in providing the basic materials for wrestlers' control of health and physical strength, the preventive, measure for injury during a practice or a game and the scientific training method for upgrading competitive power in a game. The result of analyzing the occurring tendency and therapeutical actions and attitude of sports injury, taking the 258 wrestlers from a high school, an university and pro-team as the object of study through a questioning sheet are like following. 1. Among every wrestlers' causes of injury, the main cause was a physical collision occupying $\50\%$, and an excessive training occupied $30\%$. on the contrary, the unsatisfied wrestler's cause of injury was a shortage of mental concentration and a burden of weight, occupying each $19\%$ and $17\%$. Therefore in order to prevent the injury, you should take care of especially in time of physical collision in a practice or a grme and prevent an excessive training. 2. The seasion with the most frequent occurrence of injury is the winter$(78\%)$, and in the spring and summer$(5.5\%)$, the frequency of occurrence of injury is very low. In the meantime, considering by occurring time, during a practice$(95\%)$ the injury occurs most frequently and during a game$(5\%)$ occure least frequently. Therefore, in order to reduce the injury, you should warm up sufficiently before the training and the practice and concentrate all of you attention and mind. 3. The injury occurs most highly in the afternoon hours occupying about $80\%$, and a little in the dawn and morning hours but in the contrary rarely in the night. 4. As the wrestler's injury type, the injury on muscles and tendons occupies the most to take $65\%$ of the whole injuries.
Journal of the Korean Society of Fisheries and Ocean Technology
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v.29
no.1
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pp.1-10
/
1993
In order to investigate the environmental properties of set net grounds located in the coastal waters of Yeosu, oceanographic observations on the fishing grounds were carried out by the training ship of Yeosu Fisheries University from Jun. 1988 to Dec. 1990. The resultes obtained are summarized as follows; 1) The water mass in the fishing grounds were divided into the inner water (29.50-31.00$\textperthousand$), the mixed water (31.10-32.70$\textperthousand$) and the offshore water (32.70-34.30$\textperthousand$) according to the distribution of salinity from T-S diagram plotted all salinity data observed from Jun. 1988 to Dec. 1990. In spring the mixing water prevailed and in summer the inner and mixing water. But in autumn and winter the mixing and offshore waters prevailed. 2) The inner water which was formed by land water from the river of Somjin and the precipitation in the Yeosu district flowed southerly along the coast of Dolsando and spread south-easterly in the vicinity of Kumodo. The inner water and offshore water which supplied from the vicinity of Sorido and Yokchido formed the thermal front and halofront. 3) As the mixing water flowing from the western sea of Cheju to the southern coast of korea was low in temperature, the water mass of low temperature which appeared at the offshore bottom of Sorido in summer was considered not to be the Tsushima warm current. 4) As vertical mixing was made frequently in spring, autumn and winter, the differences in temperature and salinity between surface and bottom was respectively small. In summer, however, the mixing was not made because of the inner water expanded offshore through the space between surface and 10m layer and so a thermocline of $2.0^{\circ}C$/10m and halocline of 4.0$\textperthousand$/10m respectively in vertical gradient was formed. 5) In the vicinity of Dolsando and Kum a water low in salinity prevailed, but in the vicinity of Namhaedo and YoKchido the reverse took place. The inner and mixing waters formed at these arease was limited to the observation area not to spread widely.
Kim, Jeong-Chang;Kang, Il-Kwon;Kim, Dong-Sun;Lee, Jun-Ho
Journal of the Korean Society of Fisheries and Ocean Technology
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v.42
no.1
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pp.19-29
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2006
To investigate the fishery and fishing ground environment of red horsehead (Branchiostegus japonicus), the author analyzed the fishery data and examined the amount of catches and oceanic environment on the adjacent seas of Jeju island and East China Sea. It was turned out that the favourable season of the red horsehead fishery is the month from March to June, the main fishing ground is located in 60 mile radius from the position $32.5^{\circ}N,\;125.7^{\circ}E$. The bottom seawater temperature in fishing ground was shown between $l3^{\circ}C\;and\;16^{\circ}C$, the salinity was appeared between 33.5 and 34.0psu without the seasonal variation of the year. Concentrations of materials(e.g, $NO_3^-\;and\;NO_2^-$) in spring and summer time in main fishing ground were higher than any other seasons, but that of phospheric materials were lower than any other seasons. Concentrations of $chlorophyll\;-\;{\alpha}$ in the main fishing ground was the highest in spring and summer at the surface layer, but the vertical profile of the $chlorophyll\;-\;{\alpha}$ concentrations in all seasons were not variable at bottom layer. Mean density of zooplankton abundance according to the vertical structure was higher and much stable in summer and autumn than spring and winter.
Journal of the Korean Institute of Traditional Landscape Architecture
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v.33
no.4
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pp.65-76
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2015
The purpose of this study is to determine the evaluation of affected visual landscape of Taereung National Training Center to Taereung and Gangneung UNESCO World heritages, South Korea. For this research, it used to offer the affected visual landscape rate and 3D simulation with Sketch up 8.0. This study conducted over 4 steps. Step 1, view points are selected with literature review and interview. Step 2, with Sketch up created 3D modelling and calculated the affected rate on the landscape. Step 3 individual buildings were mapped with the affected rate. Lastly, step 4 were identified the results through field research. From this results, the visual landscape of Taereung and Gangneung that are damaged by the Taereung National Training Center did not appear higher than initially expected. The entrance area on Gangneung, however, where is affected from Oryungwan, Korea Sports Institute, Philseung Gym needs to establish a way to improve that landscape impact. In case of Taereung, it did not appear damaged due to the hiding effect of the forest. By field survey to confirm those results, it shows seasonal differences. In the case of the summer and autumn derive similar results with 3D simulation but were exposed buildings in the winter and spring. It means when the simulation based on the summer and fall operates, it may not reflect the affected landscape of certain times such as winter and spring. This study has significance as a basic research to co-exist between the traditional heritage and modern heritage.
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