• Journal of Plant Biology
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• v.19 no.2
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• pp.37-40
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• 1976

The experiment designed to obtain information relative to the favourable levels to apply N.P.K fertilizer was conducted at the hop garden of College of Agriculture, S.N.U. in 1975. The varieties used were 1-year-old Cascade, Hallertau and Shinshuwase. The design of the experiment was a split plot design with 3 replications. Yields were recorded as fresh weight of harvested cones in gram per split plot. The results obtained from the experiment were as follows: 1. The results from analysis of the data for 3 varieties indicated that significant increase in yield were found due to the application of 46g N, 20g P2O5 and 60kg K2O per plant, although higher level thn the above caused a remarkable reduction of yield. 2. The individual fresh weight of harvested cones was significantly increased with application of nitrogen, phosphorus and potash, regardless of fertilizer levels. 3. Analysis of variance for yields showed that there were no significant interaction between fertilizer level and variety, i.e., all varieties used might require the same fertilizer level.

• Proceedings of the Korean Society of Tribologists and Lubrication Engineers Conference
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• 2002.10b
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• pp.407-408
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• 2002

This paper presents a split cooling system for a new inline 4-cylinder automotive engine. The split cooling system circulates coolant to the cylinder head and cylinder block separately. The coolant flow in the cylinder block is controlled by a $2^{nd}$ Thermostat installed at the outlet of cylinder block. The $2^{nd}$ thermostat closes when the coolant temperature is low. And this makes the coolant flow in cylinder block nearly stagnant, thereby reducing the coolant-side heat transfer coefficient and raising cylinder bore temperature. The $2^{nd}$ thermostat starts to open when the coolant temperature reaches a specified temperature. The test results on engine dynamometer show improved fuel economy and lower exhaust emission which result from the decrease in friction works and cooling loss. Also, several vehicle tests, with application of the new engine have been performed. Fuel economy improvement of 0.5{\sim}2.0%$ yields from different test modes and details are discussed in this paper.

• Journal of Korea Multimedia Society
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• v.7 no.4
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• pp.505-517
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• 2004

This paper overviews the design details of the cluster file system $\textrm{SANique}^{TM}$ on the SAN environment. $\textrm{SANique}^{TM}$ has the capability of transferring user data from shared SAN disk to client application without control of centralized file server. We, especially, focus on the characteristics and functions of recovery manager CRM of $\textrm{SANique}^{TM}$. The process component for failure detection and its overall procedure are described. We define the split-brain problem that cannot be easily detected in cluster file systems and also propose the recovery management method based on SAN disk in order to detect and solve the split-brain situation.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.9
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• pp.2057-2064
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• 2010

With the development of wireless network technology, the location information of a spatiotemporal object which changes their location is used in various application. Each spatiotemporal object has many location information, hence it is inefficient to search all trajectory information of spatiotemporal objects for a range query. In this paper, we propose an efficient method which divides a trajectory and stores its division data on restricted storage space. Using suboptimal split algorithm, an extended split algorithm that minimizes the volume of EMBRs(Extended Minimum Bounding Box) is designed and simulated. Our experimental evaluation confirms the effectiveness and efficiency of our proposed splitting policy

• The Journal of Korean Institute of Communications and Information Sciences
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• v.23 no.6
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• pp.1526-1537
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• 1998

The split-screen function on the multipoint control unit(MCU) which is usually using processing method based on pixel domain has many problems for manipulating the video signal in real-time. Although the researches and the developements to cope ith such problems are processing, these have too complex architecture to implement and are limited to method for H.261 video signal. In this paper, we propose a new mechanism for split-screen that can actually apply to ISO/IEC MPEG video standard. The new method that is proposed in this paper do the processes in complete compression domain, thus it is suitable for the application of real-time multipoint multimedia communication service. By simple interpreting and manipulating the MPEG video element stream, the split-screen functional module can be implemented easily and the result of the procedures does not accompany image degradation at all. Finally, the complexity of implementation, the aspect for processing delay and the loss of image quality as compared to that resulting in the case of applying the previous split-screen method has been investigated. And it is confirmed that the proposed mechanism has a significant advantage as a split-screen method.

• Journal of The Korean Society of Grassland and Forage Science
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• v.20 no.1
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• pp.41-48
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• 2000

This study was conducted to investigate the effects of the application rate of fermented swine manure and additional mineral fertilizer on productivity and nutritive value of corn(Zea mays L.) for silage. Swine manures used in this study were the compost of swine manure fermented with sawdust(SMFWS) and swine sluny(SS). This study was arranged in split-split plot design. Main plots were the types of swine manure, subplots were the application rate of swine manure, such as 100, 200 and 400kgN/ha, and sub-subplots were the application rate of mineral fertilizer, such as 50 and 100kgNiha. Corn DM(dry matter) and TDN(tota1 digestible nutrient) yields increased as application rate of SMFWS and SS increased. DM and TDN yields in SS treatments were higher than those in SMFWS treatments. The effect of fermented swine manure improved positively as application rate of urea increased. Net energy for lactation(NE1) and TDN content in corn decreased as application rate of SMFWS and SS increased, but crude protein(CP) content increased by the application of SMFWS and SS. NE, and TDN contents in SMFWS treatments were lower than those in SS treatments, but CP content in SMFWS was higher than that in SS. The growth and nutritive value of corn were improved by the application of mineral fertilizer. (Key words : Swine manure, Swine sluury, Compost, Zea may, TDN, Net energy)

• Journal of Animal Environmental Science
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• v.17 no.2
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• pp.107-114
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• 2011

This study was designed to determine the effect of season and split-sex feeding on performance, stress and carcass quality of finishing pigs. Two hundred and seventy cross-bred finishing pigs $(82.1{\pm}0.82kg)$ were randomly divided into six groups in 2 seasons (summer and winter) ${\times}$ 3 split-sex feeding (female only, castrated male and mixed) factorial arrangement of treatments. In winter, feed intake and weight gain of finishing pigs were better than summer (p<0.05). Split-sex feeding was affected the feed conversion, feed conversion of finishing pigs were superior in winter and mixed groups. Plasma concentrations of cortisol as a stress indicators was greater in the mixed groups vs female only and castrated male groups. There were no interactions between the season and split-sex feeding in their effects on these blood variables. The season was affected the carcass characteristics and PSE incidence of the finishing pigs, PSE incidence was low in winter and mixed groups. Meat quality did not show any significant difference due to the difference of season and split-sex feeding of finishing pigs. There was no significant difference in the pH, drip loss and meat color of pork loin between the season and split-sex feeding of finishing pigs. In conclusion, the results of this study suggest that we need more precise on-farm management practice in summer and application of split-sex feeding skills to reduce the stress and improve welfare status of finishing pigs.

• Applied Biological Chemistry
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• v.9
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• pp.149-152
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• 1968

In order to establish a effective application method of compost and phosphorus fertilizer for rice plant, a field experiment has been conducted and the variation of the organic matter content in soils has been observed. The results may be summarized as follows. 1. It was more effective to split the application time into basic and in 2 weeks before the young premodia formation for the yield increase of rice grain than to applicate once basic, and it was apparent that the lesser amount of organic matter during the growing period of rice was consumed, the higher yield of rice grain was resulted. 2. The combined application of compost and phosphorus fertilizer showed a tendency to raise higher the grain yield than the separated application. 3. It was suggested that the split application of compost bring yield increase of rice grain.

• KOREAN JOURNAL OF CROP SCIENCE
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• v.30 no.2
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• pp.140-145
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• 1985

Field experiments were conducted in Suwon in 1982 and 1983 to evaluate the effects of compost application, nitrogen (N) rate and split application of N on growth, yield and N uptake of sweet corn (Zea mays L.) grown under clear polyethylene mulching condition. Urea was banded at N rates of 0 (only in 1983), 5, 10, 15 and 20 kg per 10a with or without compost application of 1500 kg per 10a at planting. In 1982, half of N was sidedressed at the 5-6 leaf stage in case of 15, and 20 kg N per 10a. Compost application increased ear size and ear weight per 10a (10%). The number of ears per 10a markedly increased with an increase in N rates up to 10 kg per 10a but was not significantly affected by further increased N rates. Ear weight per 10a increased linearly as N rate increased from 0 to 20 kg per 10a without compost but increased greatly up to 10 kg N per 10a with compost application. Dry matter yield increased greatly up to 15, 10 kg N per 10a with and without compost application, respectively. Nitrogen uptake increased linearly from 8.1 to 18.8 kg per 10a with an increase in N rates from 0 to 20 kg per 10a. The optimum N rate appeared to be 10 to 15 kg per 10a based on ear number, ear weight and dry weight per 10a. There was no significant difference between basal and split applications of N in terms of ear size, and number and weight of ears per 10a.

• Korean Journal of Soil Science and Fertilizer
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• v.29 no.3
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• pp.264-269
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• 1996

Four leavels of nitrogen and five split-application method were investigated in the puddled drill seeding of rice in tidal land paddy field of Munpo series in Gyehwado. Soil ammonium concentration increased of higer nitrogen level, and was higher in latex coated urea(LCU) than urea split-application, and stage of $NH_4-N$ was the higher in maximum tillering stage. Rice yield, nitrogen availability and yield increment rate according to nitrogen levels were the highest when nitrogen was applied 200kg/ha and also it were the highest in the LCU application by 30% decreased than urea application as affected by application method. Adequate application amount of nitrogen was estimated 222kg/ha in direct drill seeding of rice in tidal land paddy field.