scholarly journals Essential Factors For The Changes In Concrete During Electrochemical Extraction

2017 ◽  
Vol 22 (2) ◽  
pp. 443-450 ◽  
Author(s):  
A. Alsabry
Keyword(s):  
Chloride Ions ◽  
Chloride Penetration ◽  
Cement Grout ◽  
Factors Affecting ◽  
Laboratory Conditions ◽  
Electrochemical Extraction ◽  
Electrochemical Removal ◽  
Significant Factors

AbstractThe objective of the article is to present one of the most significant factors affecting electrochemical removal of chloride ions from concrete. Based on the literature findings, tests were carried out on specimens containing chloride admixtures introduced to the cement grout, on elements subjected to chloride penetration from the solution in laboratory conditions and on fragments of constructions penetrated by chlorides as a result of a long-term exposure to seawater.

scholarly journals Significant factors affecting the selection of rational options for power supply in an off-grid zone

2019 ◽  
Vol 77 ◽  
pp. 02006
Author(s):  
Ivanova Irina
Keyword(s):  
Power Supply ◽  
Methodological Approach ◽  
Simulation Models ◽  
Economic Indicators ◽  
Factors Affecting ◽  
Fuel Delivery ◽  
Generating Equipment ◽  
Selection Of ◽  
Significant Factors

The paper presents a short characteristic of an off-grid zone in the eastern regions of the Russian Federation. The main problems of power supply to consumers in this zone are described, and possible options for solving them are provided. A methodological approach and model tools to estimate the efficiency of alternative options of power supply to off-grid consumers are described. The factors affecting the selection of a rational option of power supply in the off-grid zone are classified. We show the interconnection between the main significant factors (availability of grid infrastructure, local fuel resources, complexity of fuel delivery logistics, characteristics of accessible power-generating equipment, and environmental constraints) and their impact on economic indicators of alternative options. Based on the systematized results of long-term studies, we present a scheme designed to select a rational option of power supply to a particular off-grid consumer according to characteristics of the described factors. Keywords: Off-grid consumers, alternative options, impact of factors, economic indicators, methodological approach, simulation models, economic efficiency.

scholarly journals Economic Factors Affecting Rice Price Fluctuation in North Sumatera

2021 ◽  
Vol 4 (2) ◽  
pp. 2277-2285
Author(s):  
Mariana Eva Yanti ◽  
Octasella Ainani As’ad ◽  
Faiz Ahmad Sibuea
Keyword(s):  
Function Analysis ◽  
Descriptive Analysis ◽  
Impulse Response Function ◽  
Secondary Data ◽  
Research Approach ◽  
Factors Affecting ◽  
Rice Prices ◽  
North Sumatra ◽  
Significant Factors

The research approach method is a qualitative approach. The method of data collection is secondary data, secondary data needed is obtained from relevant agencies, namely from the Central Bureau of Statistics and the Department of Agriculture as well as other literature related to research. The analytical method used is descriptive analysis and analysis of Vector Auto Regression (VAR). The results showed that: 1) The dominant factors affecting rice prices in North Sumatra are 2, the first is 60% production because the higher the production of rice, the price of rice will decline and the lower the production, the price of rice will increase and the second factor is 38% inflation because if the price of rice continues to increase there will be inflation, but it is different from the fact that rice prices fluctuate due to the stability of rice prices. 2) Factors that affect rice prices in North Sumatra in the short term are significant, namely inflation and in the long term there are five significant factors, namely production (prod), harvest area (field), income (inc), consumption (cons) ) and inflation (inf). 3) From Impulse Response Function Analysis, it can be seen that the factors that influence rice prices in North Sumatra can be seen as stability, namely the production variable (Prod) reaches stability in the 25th period, the penen variable (Field) reaches stability in the period 28, the consumption variable (Cons) reaches stability in the 25th period, the income (Inc) variable reaches stability in the 20th period, the inflation variable reaches stability in the 27th period. namely inflation and in the long term there are five significant factors, namely production (prod), harvest area (field), income (inc), consumption (cons) and inflation (inf).

scholarly journals ESTONIAN TRAFFIC BEHAVIOUR MONITORING STUDIES 2001–2016: OVERVIEW AND RESULTS

2017 ◽  
Vol 12 (3) ◽  
pp. 167-173
Author(s):  
Juri Ess ◽  
Dago Antov
Keyword(s):  
Road Safety ◽  
Road Traffic ◽  
Traffic Signals ◽  
Seat Belts ◽  
Factors Affecting ◽  
Road Users ◽  
Strategic Goals ◽  
Long Term Trends ◽  
Significant Factors

One of the most significant factors affecting road safety is human. Estonia has improved road safety dramatically since its re-independence in 1991, and among the other reasons, this has happened due to changes in behaviour of road users. Likely, at the same time, there have been annual studies conducted, aimed at measuring specific indicators connected to compliance with road traffic law. As a result, one gets long-term trends in such indicators as compliance with traffic signals, usage of seat belts, yielding to pedestrians at uncontrolled crossings. This paper aims to describe Estonian traffic behaviour studies, analysing their results and pointing out actual problems in traffic behaviour. According to the results of studies, all aspects of traffic behaviour showed positive trends, but these trends are different. Certain indicators such as usage of seat belts have changed dramatically, while others like compliance with traffic signals showed only moderate changes. The foremost problem in traffic behaviour is found out to be ignorance to yield at uncontrolled pedestrian crossings. It is certainly one of the issues to deal with in the context of achieving Estonian strategic goals in road safety.

scholarly journals Predictive Factors Affecting the Short Term and Long Term Exodrift in Patients with Intermittent Exotropia after Bilateral Rectus Muscle Recession and Its Effect on Surgical Outcome

2014 ◽  
Vol 2014 ◽  
pp. 1-4 ◽  
Author(s):  
Jason C. S. Yam ◽  
Gabriela S. L. Chong ◽  
Patrick K. W. Wu ◽  
Ursula S. F. Wong ◽  
Clement W. N. Chan ◽  
...  
Keyword(s):  
Predictive Factors ◽  
Surgical Outcome ◽  
Rectus Muscle ◽  
Lateral Rectus ◽  
Short Term ◽  
Intermittent Exotropia ◽  
Factors Affecting ◽  
Surgical Corrections ◽  
Significant Factors

Purpose. To determine the predictive factors that affect short term and long term postoperative drift in intermittent exotropia after bilateral lateral rectus recession and to evaluate its effect on surgical outcome.Methods. Retrospective review of 203 patients with diagnosis of intermittent exotropia, who had surgical corrections with more than 3 years of followup. Different preoperative parameters were obtained and evaluated using Pearson’s correlation analysis.Results. The proportion of exodrift increased from 62% at 6 weeks to 84% at 3 years postoperatively. The postoperative drift was4.3±8.1 PD at 6 weeks,5.8±8.4 PD at 6 months,7.2 ± 8.3 PD at 1 year,7.4 ± 8.4 PD at 2 years, and7.7 ± 8.5 PD at 3 years. Preoperative deviation and initial overcorrection were significant factors affecting the postoperative drift at 3 years (r=0.177,P=0.011,r=-0.349, andP<0.001, resp.).Conclusions. Postoperative exodrift along three years occurs in a majority of patients after bilateral lateral rectus recession for intermittent exotropia. The long term surgical success is significantly affected by this postoperative exodrift. A larger preoperative deviation and a larger initial overcorrection are associated with a larger early and late postoperative exodrift.

INFORMATION SUPPORT FOR MAKING MANAGEMENT DECISIONS IN THE FIELD OF PREVENTION OF EYE DISEASES AT STUDENTS BASED ON MULTI-VARIANT SIMULATION AND FORECASTING

2020 ◽  
pp. 147-153
Author(s):  
Юлия Владимировна Татаркова ◽  
Татьяна Николаевна Петрова ◽  
Олег Валериевич Судаков ◽  
Александр Юрьевич Гончаров ◽  
Ольга Николаевна Крюкова
Keyword(s):  
Preventive Measures ◽  
Influential Factors ◽  
Eye Diseases ◽  
Information Support ◽  
Factor Space ◽  
Factors Affecting ◽  
Eye Fatigue ◽  
Modeling And Forecasting ◽  
Medical Examinations

В настоящей статье представлен обзор основных решений, доступных сегодня для формирования как краткосрочных, так и долгосрочных проекций заболеваемости болезней глаза и его придаточного аппарата в студенческой среде. С другой стороны, существует ряд проблем, связанных с многообразием факторов, влияющих на заболеваемость, статистической необоснованностью и противоречивостью имеющихся результатов анализа данных. Представлены результаты математического моделирования зависимости показателя заболеваемости от наиболее влиятельных факторов образовательной и социальной среды. Перечислены важнейшие направления разработки математических моделей распространения заболеваемости. С помощью разработанного программного комплекса проведена серия вычислительных экспериментов по оценке и прогнозированию заболеваемости обучающихся в вузах разного профиля. Показана эффективность применения методики многовариантного моделирования и прогнозирования, указаны их ограничения и возможности практического применения. По расположению обобщенной области благоприятного прогноза в факторном пространстве можно определить время воздействия неблагоприятных для зрения факторов, которое должно составлять не более 10 ... 11 часов в сутки, количество профилактических мероприятий должно составлять не менее 3 ... 4. При этом риск развития миопии составит не более 0,4, вероятность усталости глаз за компьютером составит не более 0,4, вероятность дискомфорта глаз на занятиях составит не более 0,15. Исходя из характера прогноза, определяется длительность диспансерного наблюдения, а также потребность профилактических мероприятий по устранению или ослаблению действия неблагоприятно влияющих социально-гигиенических и медико-биологических факторов конкретного больного. Использование прогностической матрицы в практическом здравоохранении позволяет существенно улучшить работу по профилактике офтальмологической заболеваемости и является одним из эффективных мероприятий диспансеризации студенческой молодежи, так как дает возможность выделить из числа обучающихся группу с высоким риском неблагоприятного исхода заболевания This article provides an overview of the main solutions available today for the formation of both short-term and long-term projections of the incidence of eye diseases and its adnexa in the student environment. On the other hand, there are a number of problems associated with a variety of factors affecting the incidence, statistical unreasonability and inconsistency of the available data analysis results. The results of mathematical modeling of the dependence of the incidence rate on the most influential factors of the educational and social environment are presented. The most important areas of developing mathematical models for the spread of morbidity are listed. With the help of the developed software package, a series of computational experiments was carried out to assess and predict the incidence of students in universities of various profiles. The effectiveness of the application of multivariate modeling and forecasting methods is shown, their limitations and practical application possibilities are indicated. By the location of the generalized region of favorable prognosis in the factor space, it is possible to determine the exposure time of factors unfavorable for vision, which should be no more than 10 ... 11 hours a day, the number of preventive measures should be at least 3 ... 4. At the same time, the risk of development myopia will be no more than 0.4, the probability of eye fatigue at the computer will be no more than 0.4, the likelihood of eye discomfort in the classroom will be no more than 0.15. Based on the nature of the forecast, the duration of the follow-up observation is determined, as well as the need for preventive measures to eliminate or weaken the action of adverse social, hygienic and biomedical factors of a particular patient. The use of the prognostic matrix in practical health care can significantly improve the work on the prevention of ophthalmic morbidity and is one of the effective medical examinations for students, since it makes it possible to distinguish among the students a group with a high risk of an unfavorable outcome of the disease

Simulation of non-stationary thermal fields from a buried thermally insulated pipeline and its diagnostics

2007 ◽  
Vol 5 ◽  
pp. 127-132
Author(s):  
N.A. Vaganova
Keyword(s):  
Thermal Imaging ◽  
Software Package ◽  
Clay Soil ◽  
Underground Pipeline ◽  
Main Pipeline ◽  
Factors Affecting ◽  
Thermal Fields ◽  
Thermal Imaging Equipment ◽  
Principal Possibility ◽  
Significant Factors

To detect damage to the underground pipeline, a mathematical model, allowing to take into account the most significant Factors affecting the distribution of temperature on the day surface. To implement this model, a software package has been developed and results of numerical calculations. With the help of these calculations, in particular, It is established that modern thermal imaging equipment has a principal possibility to determine an unauthorized frame in the main pipeline at a depth of two meters in clay soil.

scholarly journals Public reporting of performance measures in long-term care in Canada: does it make a difference?

2020 ◽  
Vol 30 (Supplement_5) ◽  
Author(s):  
M Poldrugovac ◽  
J E Amuah ◽  
H Wei-Randall ◽  
P Sidhom ◽  
K Morris ◽  
...  
Keyword(s):  
Performance Measures ◽  
Performance Indicators ◽  
Long Term Care ◽  
Public Reporting ◽  
Policy Implications ◽  
Term Care ◽  
Factors Affecting ◽  
Care Facilities ◽  
The Impact

Abstract Background Evidence of the impact of public reporting of healthcare performance on quality improvement is not yet sufficient to draw conclusions with certainty, despite the important policy implications. This study explored the impact of implementing public reporting of performance indicators of long-term care facilities in Canada. The objective was to analyse whether improvements can be observed in performance measures after publication. Methods We considered 16 performance indicators in long-term care in Canada, 8 of which are publicly reported at a facility level, while the other 8 are privately reported. We analysed data from the Continuing Care Reporting System managed by the Canadian Institute for Health Information and based on information collection with RAI-MDS 2.0 © between the fiscal years 2011 and 2018. A multilevel model was developed to analyse time trends, before and after publication, which started in 2015. The analysis was also stratified by key sample characteristics, such as the facilities' jurisdiction, size, urban or rural location and performance prior to publication. Results Data from 1087 long-term care facilities were included. Among the 8 publicly reported indicators, the trend in the period after publication did not change significantly in 5 cases, improved in 2 cases and worsened in 1 case. Among the 8 privately reported indicators, no change was observed in 7, and worsening in 1 indicator. The stratification of the data suggests that for those indicators that were already improving prior to public reporting, there was either no change in trend or there was a decrease in the rate of improvement after publication. For those indicators that showed a worsening trend prior to public reporting, the contrary was observed. Conclusions Our findings suggest public reporting of performance data can support change. The trends of performance indicators prior to publication appear to have an impact on whether further change will occur after publication. Key messages Public reporting is likely one of the factors affecting change in performance in long-term care facilities. Public reporting of performance measures in long-term care facilities may support improvements in particular in cases where improvement was not observed before publication.

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