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Web-based Coordination System for Daily Work Report between Contractor and Subcontractor (원수급업체와 하수급업체간 웹기반 작업일보 연동시스템 개발)

  • Seo Hae-Jun;Koo Kyo-Jin;Um Ik-Jun
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2004.11a
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    • pp.370-375
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    • 2004
  • The management of daily work report is very important due to the variety of work trade and activities. Although various project management systems have been developed to effectively deal with various task in site, they are not in practical use due to the non-coorperative attitude of sub-contractors. This is the reason the system are not developed in the focus of sub-contractors, but main contractors and the detail information about daily work report is omitted or lost in the collection process by contractors. Therefore the purpose of this study was to propose the Web-based coordination system for daily work report between contractor and sub-contractors

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Estimation of daily maximum air temperature using NOAA/AVHRR data (NOAA/AVHRR 자료를 이용한 일 최고기온 추정에 관한 연구)

  • 변민정;한영호;김영섭
    • Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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    • 2003.04a
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    • pp.291-296
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    • 2003
  • This study estimated surface temperature by using split-window technique and NOAA/AVHRR data was used. For surface monitoring, cloud masking procedure was carried out using threshold algorithm. The daily maximum air temperature is estimated by multiple regression method using independent variables such as satellite-derived surface temperature, EDD, and latitude. When the EDD data added, the highest correlation shown. This indicates that EDD data is the necessary element for estimation of the daily maximum air temperature. We derived correlation and experience equation by three approaching method to estimate daily maximum air temperature. 1) non-considering landcover method as season, 2) considering landcover method as season, and 3) just method as landcover. The last approaching method shows the highest correlation. So cross-validation procedure was used in third method for validation of the estimated value. For all landcover type 5, the results using the cross-validation procedure show reasonable agreement with measured values(slope=0.97, intercept=-0.30, R$^2$=0.84, RMSE=4.24$^{\circ}C$). Also, for all landcover type 7, the results using the cross-validation procedure show reasonable agreement with measured values(slope=0.993, Intercept=0.062, R$^2$=0.84, RMSE=4.43$^{\circ}C$).

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The Effect of Daily Living Activities, Depression, Self-respect, and Social Activity Participation of the Rural Elderly on Their Life Satisfaction -Centering on Yeoju, Gyeonggi- (농촌노인의 일상생활수행능력과 우울감, 자아존중감 및 사회활동 참여가 생활만족도에 미치는 영향 -경기도 여주를 중심으로-)

  • Lee, Hyun-Sim;Nam, Hee-Soo
    • Journal of Agricultural Extension & Community Development
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    • v.17 no.4
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    • pp.957-984
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    • 2010
  • The aim of this research is to delineate how daily living activities, depression, self-respect, and social activity participation affects the life satisfaction of the rural elderly. The subjects of the research were elderly over-65-year-olds living in Yeoju, Gyeonggido and conducted from November 15 to November 30, 2009. The sampling method was convenience sampling among non-probability sampling, a total of 339 were used as analysis data. The collected data were then put through-frequency analysis, correlation analysis, simple regression analysis, analysis of variance, Kruskal-Wallis, and feasibility verification through SPSS SAS 9.1.3 program. As a result of hypothesis verification, daily living activities have a positive influence over life satisfaction. And the higher the elderly's self-respect, the greater their life satisfaction, and it was verified that depending on social activity participation, there is a difference in their life satisfaction. The purpose of this study is to verify and carry out action plan and ital.

Study on the Growth Pattern of Gayals (Bos Frontalis) and their Crossbred Calves

  • Huque, K.S.;Rahman, M.M.;Jalil, M.A.
    • Asian-Australasian Journal of Animal Sciences
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    • v.14 no.9
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    • pp.1245-1249
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    • 2001
  • A study was conducted with 14 gayals to study their growth pattern from birth to 24 months of age, and gayal was compared with native calves and crossbred calves of gayals and exotic animals. A significant difference in liveweight gains up to 3 months (p<0.001) or up to 6 months (p<0.05) was found between gayal and native calves, but the difference reduced with increase of age and found non-significant (p>0.05) at 9 months and 12 months. The daily liveweight gain up to 3, 6, 9 or 12 months of age of gayals were 404.60, 306.80, 315.20 and 312.20 g/d, respectively and of native calves were 217.3, 245.3, 262.0 and 269.0 g/d, respectively. Gayal female calves had lower weights at birth (20.2 kg) and weaning (81.8 kg) and daily liveweight gains (298.5 g/d) than males (24.3 kg, 84.0 kg and 317.8 g/d, respectively) but the differences were not significant (p>0.05). Cross breeding gayal cows with Friesian bulls increased daily liveweight gain of the crossbred calves. The rate of increase of daily liveweight gain may further be increased if gayals are crossed with beef type animals, and optimum feeding may also be required which needs further research.

Calcium Status and Bone Mineral Density by the Level of Sodium Intake in Young Women (성인 여성의 나트륨 섭취수준과 칼슘 영양상태 및 골밀도)

  • Yoon, Jin-Sook;Lee, Mi Jung
    • Korean Journal of Community Nutrition
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    • v.18 no.2
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    • pp.125-133
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    • 2013
  • Previous studies have shown that sodium excretion is positively related to calcium excretion in the urine. As excessive sodium intake is a common nutritional problem in Korea, we intended to investigate associations among sodium intake levels and calcium status, evaluated by 24 hour recall method and urinary excretion, and bone status. We collected dietary information for non-consecutive three days from 139 young adult women 19~29 years. After classifying the subjects into 4 groups based on the dietary sodium levels by daily total sodium intake (mg) and sodium density (sodium intake per 1000 kcal energy intake), we compared the bone status, nutrient intakes, urinary calcium and sodium excretions. The results showed a positive association between total daily sodium intake and intake of other nutrients. However, no significant differences in nutrients intakes were observed among subject groups classified by sodium density levels. There were no significant differences of bone density among groups by total daily sodium intake as well as by sodium density. While total daily sodium intake showed significantly positive relationship with urinary sodium (p < 0.05) and calcium (p < 0.05), sodium density was not related to urinary excretion of calcium and sodium. Our results suggested that promoting balanced meals providing appropriate amounts of energy intake is the essential component of nutrition education for improving calcium status of young Korean women with excessive sodium intake.

Online Multi-Task Learning and Wearable Biosensor-based Detection of Multiple Seniors' Stress in Daily Interaction with the Urban Environment

  • Lee, Gaang;Jebelli, Houtan;Lee, SangHyun
    • International conference on construction engineering and project management
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    • 2020.12a
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    • pp.387-396
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    • 2020
  • Wearable biosensors have the potential to non-invasively and continuously monitor seniors' stress in their daily interaction with the urban environment, thereby enabling to address the stress and ultimately advance their outdoor mobility. However, current wearable biosensor-based stress detection methods have several drawbacks in field application due to their dependence on batch-learning algorithms. First, these methods train a single classifier, which might not account for multiple subjects' different physiological reactivity to stress. Second, they require a great deal of computational power to store and reuse all previous data for updating the signle classifier. To address this issue, we tested the feasibility of online multi-task learning (OMTL) algorithms to identify multiple seniors' stress from electrodermal activity (EDA) collected by a wristband-type biosensor in a daily trip setting. As a result, OMTL algorithms showed the higher test accuracy (75.7%, 76.2%, and 71.2%) than a batch-learning algorithm (64.8%). This finding demonstrates that the OMTL algorithms can strengthen the field applicability of the wearable biosensor-based stress detection, thereby contributing to better understanding the seniors' stress in the urban environment and ultimately advancing their mobility.

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A Study on the Risk of Pesticide Exposure by Food Intake (식이섭취를 통한 농약폭로의 위해도에 관한 연구)

  • 전옥경;이용욱
    • Journal of Food Hygiene and Safety
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    • v.14 no.2
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    • pp.201-215
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    • 1999
  • Limited information is available on the acceptability of Korean MRLs(maximum residue limits) and the health risk based on the pesticide exposure by food intake. The aim of this study was to evaluate TMDI(theoretical maximum daily intake) and EDI(estimated daily intake) for Korean by using MRLs, food intake, residue data, and correction factors, and compare with ADI(acceptable daily intake) in order to estimate the health risk based on the pesticide exposure. The study was performed in three steps. In the frist step, the residual pesticides in each category of food were investigated using the pesticide residue analytical data(1995-96) from officially approved organizations and the analytical data for poultry was adopted from Korean food code method. In the second step, TMDI was estimated from MRLs and food factors, and was compared with ADI. In the third step, the effectiveness of each culinary treatment (washing, peeling, steaming, boiling, and salting) was evaluated and EDI was calculated using pesticide residue data, food factor, and correction factor by treatment. TMDI obtained from MRLs and food intake, and food intake was summed as 1,100.99 g, which was 79.1% of total consumption. The percent ratio of TMDI to ADI for 156 pesticides was mostly below 80% and only 30 pesticides exceeded the ADI. In particular, non-treated EDI from pesticide residue data and food intake was summed up to about 43 $\mu\textrm{g}$/day/capita, and the rank was procymidone(8.6 $\mu\textrm{g}$) > maleic hydrazide(8.2 $\mu\textrm{g}$) > EPN(3.7 $\mu\textrm{g}$) > deltamethrin(3.5 $\mu\textrm{g}$) > cypermethrin(3.0 $\mu\textrm{g}$). The treated EDI calculated from pesticide residue data, food intake, and correction factor by culinary treatment was summed up to 13.7 $\mu\textrm{g}$/day/captia. The percentage of ADI was TMDI(79.74%) > non-treated EDI (0.17%) > treated EDI (0.04%), and the exposure level of Korean population to whole pesticides was below the level to produce health risk. Oncogenic risk of five pesticides used in Korea whose oncogenic potency(Q*) was known were assessed from TMDI and treated EDI. Dietary oncogenic risk for Korean was estimated to be 2.0$\times$10-3 on the basis of TMDI, 8.3$\times$10-7 on the basis of treated EDI. The oncogenic risk from TMDI exceeded the risk level(1$\times$10-6) of EPA, whereas the oncogenic risk from treated EDI and real exposure level lower than that of EPA.

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Development of Stochastic Downscaling Method for Rainfall Data Using GCM (GCM Ensemble을 활용한 추계학적 강우자료 상세화 기법 개발)

  • Kim, Tae-Jeong;Kwon, Hyun-Han;Lee, Dong-Ryul;Yoon, Sun-Kwon
    • Journal of Korea Water Resources Association
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    • v.47 no.9
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    • pp.825-838
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    • 2014
  • The stationary Markov chain model has been widely used as a daily rainfall simulation model. A main assumption of the stationary Markov model is that statistical characteristics do not change over time and do not have any trends. In other words, the stationary Markov chain model for daily rainfall simulation essentially can not incorporate any changes in mean or variance into the model. Here we develop a Non-stationary hidden Markov chain model (NHMM) based stochastic downscaling scheme for simulating the daily rainfall sequences, using general circulation models (GCMs) as inputs. It has been acknowledged that GCMs perform well with respect to annual and seasonal variation at large spatial scale and they stand as one of the primary sources for obtaining forecasts. The proposed model is applied to daily rainfall series at three stations in Nakdong watershed. The model showed a better performance in reproducing most of the statistics associated with daily and seasonal rainfall. In particular, the proposed model provided a significant improvement in reproducing the extremes. It was confirmed that the proposed model could be used as a downscaling model for the purpose of generating plausible daily rainfall scenarios if elaborate GCM forecasts can used as a predictor. Also, the proposed NHMM model can be applied to climate change studies if GCM based climate change scenarios are used as inputs.

Comparisons on Motivation for Health Behavior, Health Behaviors Practices, and Activities of Daily Living between Institutionalized and Non-institutionalized Elderly Women (시설 여성 노인과 재가 여성 노인의 건강행위 동기요소, 건강행위 및 일상생활활동 비교)

  • Son, Jung Tae;Suh, Soon Rim
    • Korean Journal of Adult Nursing
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    • v.19 no.3
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    • pp.379-388
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    • 2007
  • Purpose: The purposes of this study were to compare the motivation for health behavior, health behaviors practices, and ADL of institutionalized elderly women with those of non-institutionalized elderly women. Methods: A cross-sectional descriptive survey was conducted in convenience samples of 144 aged women(80 institutionalized and 64 non-institutionalized) using structured questionnaires. Descriptive statistics, $x^2$-test, and ANCOVA were used for data analysis with SPSS program. Results: The institutionalized elderly reported significantly higher motivation than the non-institutionalized elderly. In subcategories of motivation, self-efficacy of the institutionalized elderly was significantly lower than that of the non-institutionalized elderly. The non-institutionalized elderly reported significantly lower perceived benefits and significantly higher perceived barriers than institutionalized elderly. The institutionalized elderly reported significantly lower health behaviors in exercise and nutrition than the non-institutionalized elderly. Among health behaviors of the non-institutionalized elderly women, stress management marked the lowest score. Conclusion: To enhance motivation of institutionalized elderly women, interventions for building self-efficacy are needed. To promote the health behavior of the non-institutionalized elderly, stress management programs are needed. All elderly women need exercise.

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The Effect of Weekly Iron Supplementation on Iron and Zine Nutritional Status in Pregnant Women (주단위 철분보충 방식이 임신부의 철분과 아연 영양상태에 미치는 효과)

  • 유경희
    • Journal of Nutrition and Health
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    • v.31 no.8
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    • pp.1270-1282
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    • 1998
  • The purpose of this research is to compare the effdct of the new weekly iron supplementation on maternal iron and zinc nutritional status with the effect of the present daily iron supplementation. To assess the iron ad zinc status of rpegant women visiting public health center in Ulsan, interview for dietary survey and general aspect of each subject was given and biochemical analysis of blood and urine was performed. The study subjects were divided to two groups randomly, but the subjects whose Hgb level was very low were allocated in daily group ethically because theeffect of weekly supplementation was not yet established as safety. Daily group received 80mg elemental Fe(250mg Fe as ferrous sulfate) per day for 100days, while weekly group received 160mg elemental Fe once a week for 15 weeks. After treatement, Hgb(p<0.01), Hct(p<0.01) , serum iron(p<0.05) and serum ferritin(p<0.001) in weekly group but RBC, Hgb , Hct , serum iron and serum iron and serum ferritin increased slightly. After correction for the initial Hgb by including it in the MANIVA, the difference in treatment effects of Hgb and TIBC between groups was statistically significant. The effect of weekly vs, daily iron supplementation program on zinc status was also studied. The difference in treatment effect between two groups was, however, not sifnificant. It is concluded that once weekly rion supplementation program in pregnant women was less effectgive to improve the iron status than daily iron supplementation program. However, because the weekly dose prevented a decline in Hgb as well as in ferritin, itw effect was positive , given the fact that non-supplemented women almost always exhibit a sifnificant drop in Hgb values. It seems that it will improve the iron status well if the amount or frequency of supplements is to be adjusted . Biweekly supplementation of a different dose or antother type of iron supplement, such as through a gastric delivery system, might be better.

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