• 지적과 국토정보
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• 제44권2호
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• pp.177-192
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• 2014

이 연구는 상가임대차계약에서 상가 월세의 비중에 영향을 주는 요인을 실증적으로 조사하였다. 이 연구의 이론적 기반은 입지이론, 상권분석, 입찰지대의 이론, 집적이론, 그리고 수요 외부성의 이론이다. 이 연구에서 사용된 자료는 $3.3m^2$당 상가 권리금, $3.3m^2$당 상가 임대료, $3.3m^2$당 상가 월세, 전국 100개 상권의 보행자 수가 포함되었다. 다중회귀 분석을 사용한 그 결과로서, 각 상권의 월세비중에 영향을 주는 변수는 $3.3m^2$당 상가 권리금, $3.3m^2$당 상가보증금, $3.3m^2$당 상가 월세가 상가 권리금에 영향을 주는 변수이다. 또한 서울시에서는 상가 월세의 비중을 결정할 때 $3.3m^2$당 상가 권리금과 도소매업체의 수가 중요하다는 것을 보였다. 요약하면, 상가 월세의 비중을 결정할 때, 상권의 경제적 상황뿐만 아니라 통행하는 보행자의 수도 고려해야 한다.

• Asian-Australasian Journal of Animal Sciences
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• 제16권5호
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• pp.738-742
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• 2003

The monitoring was carried out for one year on 20 farms of Mediterranean buffalo situated in central Italy. The milk yield, the somatic cell count, the coagulating properties and some components were determined. The average value of somatic cells was $21.28n{\times}10^3/ml$. Milk production decreased when somatic cell numbers increased. The rennet clotting time increased significantly when somatic cells were higher than $300.00n{\times}10^3/ml$, the curd firming time was significantly higher when somatic cells were more than $1,000.00n{\times}10^3/ml$ and the curd firmness increased up to $200.00n{\times}10^3$/ml, then gradually decreased. Protein and casein decreased when somatic cells increased and the same trend was shown by casein/protein ratio. Both for these components and the coagulating properties the threshold limit of somatic cells to obtain better results was $200.00n{\times}10^3/ml$. The somatic cell number did not show a trend which was strictly influenced by the lactation stage, contrary to what happened in the other species.

• 한국의류산업학회지
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• 제8권3호
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• pp.363-369
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• 2006

In this the study, Lyocell fabrics for blanket were developed to get high value added goods for elder and Infant. Therefore, the purpose of the study was determine the effect of twist per inch on the physical properties of developed fabrics, including compression property and abrasion resistance on the process for making Lyocell combined yarns. For comparison, commonly used cotton blanket was used. The results were as the follows: 1) Dimensional changes of Lyocell fabrics was in -3% which value was pretty stable, and antistatic property was very good with 10V of electric propensity voltage which means there was no static electricity at all. Pilling property of Lyocell fabrics showed 3 grade which was good and air permeability and moisture vapor transmission rate of Lyocell fabrics were higher than those of cotton fabric and keeping warmth rate of Lyocell fabrics was about 50% which means it very warms. 2) Twist per inch of Lyocell combined yarns increased with tensile strength and elongation of Lyocell fabrics. 3) Twist per inch of Lyocell combined yarns increased with decreasing thickness reduction rate and therefore, compression property of those was pretty good. Specially, compression property of Lyocell fabrics made with yarns of 3.9TPI was better than those of cotton fabric. 4) Twist per inch of Lyocell combined yarns increased with abrasion resistance of Lyocell fabrics.

• 수산해양기술연구
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• 제50권3호
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• pp.262-273
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• 2014

To investigate the catching efficiency of a biodegradable round trap for a swimming crab (Portunus trituberculatus), four types of material (two types of biodegradable net, one type of biodegradable plus polyethylene net and one type of polyethylene net) for traps were used in the field test, and the field tests were carried out 11 times in the Boryeong fishing ground of Korea, 2012~2013. The catching efficiency of four type traps was analyzed by catch per trap, weight per trap and mean weight per individual of small and large size swimming crab. Statistical Kruskal-Wallis test was carried out to verify the significant difference for the efficiency between types of material. The catch in number of swimming crab was 9,015 and formed about 94.3% of total catch. In the results of catching efficiency of traps, there was a little difference in catch per trap, weight per trap and mean weight per individual of swimming crab in-situ data. But there was no significant difference in catching efficiency between the biodegradable traps and the PE trap (P>0.05), so it's needed to use widely a biodegradable trap for the conservation and sustainable management of swimming crab resources.

• 한국연초학회지
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• 제1권2호
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• pp.127-137
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• 1979

담배의 중량변화에 영향을 주는 인자중에서 刻草(각폭 0.9mm)의 길이와 수분함량 그리고 이 두 인자의 변화에 따른 팽숭성 변화의 상호관계로부터 우리나라 제조담배의 중량변화관계를 분석하였다. 1. 수분함량이 1%씩 변화할 때 각초의 팽숭성은 3.2~7.9%가 변화하였고, 제품의 중량은 5.7~7.6%의 변화를 보였으며, 이 변화율은 각초의 길이가 클수록 크게 나타나고 길이가 작을수록 작게 나타났다. 2. 일정한 수분함량( 12% )에서 각초의 길이변화에 따른 팽숭성의 변화는 3.8~22.8%로 나타났고, 제품의 중량은 2.9~29.4%의 변화를 보였으며, 이 변화폭은 수분함량이 감소할수록 커지고 증가할수록 작아지는 경향을 나타내었다. 3. 길이가 서로 다른 각초를 일정량씩 임의로 배합하였을 때의 제품중량의 변화는 각초의 길이가 2mm이상은 3.5%가 증가하는 반면 2mm이하는 3.5%가 감소하였으면 이 변화는 배합률이 25~30%에서 가장 적게 나타났다. 4. 우리나라 제조담배의 표준중량은 본 실험의 결과 분석된 적정중량에 비해서 1~9%가 높은 것으로 나타났다.

• 한국통신학회논문지
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• 제28권4A호
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• pp.208-215
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• 2003

H-ARQ를 적용한 시스템에서 최대 수율(throughput)을 얻기 위한 Target PER을 수치적 해석 방법을 이용하여 구하였고 시뮬레이션 과정을 통하여 검증하였다. 수치적 해석 방법을 위하여 chase combine의 효과는 해밍 거리가 증가하는 효과로 간주하였고 이를 바탕으로 수율 계산식과 터보 부호에서 평균 상호값(Average upper bound)을 이용한 PER간의 연계식을 유도하여 최적의 Targer PER값을 구했다. 그 결과 H-ARQ방법이 적용된 경우 현재 3GPP2 표준에 선정되어 있는 5%에 비해 더 높은 6% target PERㅇ에서 최대 수율이 나타나는 결과를 확인할 수 있었다.

• Journal of the Korean Physical Society
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• 제80권
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• pp.516-525
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• 2022

This study is to assess the clinical use of commercial PerFRACTION^TM for patient-specific quality assurance of volumetric-modulated arc therapy. Forty-six pretreatment verification plans for patients treated using a TrueBeam STx linear accelerator for lesions in various treatment sites such as brain, head and neck (H&N), prostate, and lung were included in this study. All pretreatment verification plans were generated using the Eclipse treatment planning system (TPS). Dose distributions obtained from electronic portal imaging device (EPID), ArcCHECK^TM, and two-dimensional (2D)/three-dimensional (3D) PerFRACTION^TM were then compared with the dose distribution calculated from the Eclipse TPS. In addition, the correlation between the plan complexity (the modulation complexity score and the leaf travel modulation complexity score) and the gamma passing rates (GPRs) of each quality assurance (QA) system was evaluated by calculating Spearman's rank correlation coefficient (r_s) with the corresponding p-values. The gamma passing rates of 46 patients analyzed with the 2D/3D PerFRACTION^TM using the 2%/2 mm and 3%/3 mm criteria showed almost similar trends to those analyzed with the Portal dose imaging prediction (PDIP) and ArcCHECK^TM except for those analyzed with ArcCHECK^TM using the 2%/2 mm criterion. Most of weak or moderate correlations between GPRs and plan complexity were observed for all QA systems. The trend of mean rs between GPRs using PDIP and 2D/3D PerFRACTION^TM for both criteria and plan complexity indices as in the GPRs analysis was significantly similar for brain, prostate, and lung cases with lower complexity compared to H&N case. Furthermore, the trend of mean rs for 2D/3D PerFRACTION^TM for H&N case with high complexity was similar to that of ArcCHECK^TM and slightly lower correlation was observed than that of PDIP. This work showed that the performance of 2D/3D PerFRACTION^TM for pretreatment patient-specific QA was almost comparable to that of PDIP, although there was small difference from ArcCHECK^TM for some cases. Thus, we found that the PerFRACTION^TM is a suitable QA system for pretreatment patient-specific QA in a variety of treatment sites.

• 한국작물학회지
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• 제1권1호
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• pp.26-31
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• 1963

1. 본시험은 심경, 밀식, 다시의 3요인으로 된 36조합중 최고의 증수를 기할 수 있는 합리적인 조합을 발견하려는데 목적이 있다. 2. 수량구성요소인 평당수수와 평당입수의 비교에서는 표준시비구에서 심경 15cm 400주구, 2배시비구에서 30cm 300주구가, 그리고 3배시비구에서는 30cm 300주구와 45cm 400주구가 큰 값을 보였다. 3. 현미중에서 볼 때 각요인별 분산비는 시비량, 경운심도, 평당수수의 순이고 모두 유의성을 보였다. 요인상호간 교호작용에서는 심도x비료, 심도x밀도, 비료x밀도의 순이었으며 모두 유의성을 나타냈다. 3요인으로 된 36조합중 30cm의 심경작토에 200∼300주의 밀식을 하고 2배의 시비를 한 구가 최고의 수량을 보임으로써 적합조합으로 인정되었다. 4. 본시험은 충북청주에 위치한 식양토의 포장에서 행하여진 것이다.

• 대한지역사회영양학회지
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• 제2권2호
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• pp.206-217
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• 1997

This study was designed to analyze and compare production management practices and labor productivity between conventional and commissary school foodservices and 46 dietitians of commissary school foodservices in Kyunggi-do. The response rates were 89.7% and 91.3$\%$, respectively. The number of meals served was ranged from less than 100 to over 1, 900 in conventional school foodservices and from 200 to 1, 600 in commissary foodservices. Thirty three conventional foodservices(42.3%) produced less than 300 meals per day. Numbers of satellite school per central kitchen were ranged from 1 to 5 schools ; fifty percent of commissary foodservices have contained 3 satellite schools. Meals for satellite schools were transported between 11:00 a.m.and 12:00 a.m ; transportation time was from 10 to 90 minutes. Waiting time before service in satellite schools was between 10 minutes and 80 minutes. Part time employees supported by parents were hired in 37.3$\%$ of conventional and 50$\%$ of commissary school foodservices. Voluntary workers were supplied for 64.9$\%$ of conventional and 52.4$\%$ of commissary school foodservices. Labor productivity was calculated from work schedule. Labor productivity(labor minutes per meal)was lowest in foodservices with 101-4-- meals(8.48 min)was lower than that of foodservices with above 401 meals ; no significant differences were found among 401-700(6.02 min), 701-1, 100(4.01 min), 1, 101-1, 500(3.41 min), and 1, 501-1, 900(3.15 min)meals in conventional foodservices. Labor minutes per meal of foodservices which served less than 400 meals(6.90 min) per day was significantly lower than those of foodservices which served 401-1, 900 meal(3.41-4.92 min) in commissary foodservices(p<0.05)

• 한국농공학회지
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• 제16권2호
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• pp.3420-3429
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• 1974

This study was performed to estimate the daily water consumption for watering livestock and home use, and to organize the water systems in the rural districts of Korea. For these purposes, 560 farms and other 40 urban families were randomly chosen and investigated about their water systems and daily water consumption seasonally from July 20 to August 31, 1973, and other 82 livestock raisers' useful data for watering livestock helped the study to assess the consumption of livestock water and compare it to that of general farms which bred some domestic animals as their sidelines. The results of data showed that the daily consumption of water was varied with the difference of districts and seasons in which the investigations were conducted. The results were summarized as follows. 1. The mean consumption of water for home use was varied with the range of 30.2-48.7 lit./day in summer and 22.4-45.2 lit./day per a person, respectively, in the rural districts, which showed that the water consumption in summer was more than in autumn. 2. The mean consumption of livestock water in the general farms approached to about 15.8-37.1 lit./day per cattle, 3.87-16.45 lit./day per a pig, and 0.19-1.03 lit./day per chicken, but it was slightly reduced in autumn; 10.89-37.09 lit./day per cattle, 3.87-12.63 lit./day per a pig, and 0.06-0.94 lit./day per chicken. The ratio of livestock water consumption to home use amounted to the range of 10-25%. 3. The mean consumption of livestock water used at the livestock raisers amounted to 134 lit./day per dairy cow, 67.4 lit./day per cattle, 43.29 lit./day per a horse, 13.24 lit./day per a pig, 0.438 lit./day per a layer, and 0.177 lit./day per a broiler, which showed that the daily water consumption for larger livestock was about two times as much as the farms, but it was approximately of the same for small ones. 4. The factors affecting the amount of water consumption for home use were statistically analyzed to find the kind of water sources and the class of water systems by the factorial arrangement method to the fundamental experimental unit, Suwon area of 100 of families, in which the former was very significant while the latter was significant. However, the standard of living and their interactions were not significant. 5. Almost 83.24% of the sampled farms used some kinds of wells as their water sources, of which 32.06% was of hard water, and of which 11.l% or 2.6% contained much of iron or organice materials, respectively, examining them by a simple technique of sensibility, 6. The resulting chart of the farm water systems was summarized as Fig. IV-6. Observating the safe distance from contamination sources, the ratio of 42.4% of sampled farms whose water sources were wells, confronted highly to the danger of contamination to their water sources. And other dangerous sources of contamination such as toilets, stalls, and compost heaps were situated nearly to the water sources, and most of them were able to make their spoiled water infiltrated into the ground. Thereafter, it was recommended to develop some protecting methods and to install some suitable faculties to clean water.