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 Analisis Faktor-faktor yang Mempengaruhi Pemilihan Metode Kontrasepsi Jangka Panjang (MKIP) pada Wanita Pasangan Usia Subur (PUS) di Kabupaten Kendal Tahun 2013

2016 ◽  
Vol 11 (2) ◽  
pp. 32
Author(s):  
Sri Setiasih ◽  
Bagoes Widjanarko ◽  
Tinuk Istiarti
Keyword(s):  
Birth Control ◽  
Influential Factor ◽  
P Value ◽  
Cross Sectional ◽  
Factors Affecting ◽  
Qualitative Approaches ◽  
Cross Sectional Design ◽  
Husband Support ◽  
Selection Of

ABSTRACTAnalysis Factors Affecting Selection Of Long-Term Contraception Method (Ltcm) Non Hormonal On Woman Of Fertile Couple (Pus) In Kendal By 2013; Women of fertile couple more than 30 years old have a higher risk factor for their health, including reproduction, which is expected they will use LTCM non-Hormonal. The purpose of this study is to analyze factors that related to the selection of LTCM Non-Hormonal in women of fertile couple in Kendal 2013. The type of this research is descriptive analytics and cross-sectional design with quantitative and qualitative approaches and the sample is 400 respondents from 20 districts in Kendal Regency. The qualitative sample is 6 respondents. The results showed a relationship between knowledge with selection of contraception method (p value = 0.034), there is a relationship between attitudes to the selection of contraception method (p value = 0.027), there is a relationship between support of birth control officer with selection contraception method (p value = 0.049), and there is a correlation between the availability of service of birth control with the selection of contraception method (p value = 0.011), there is no relationship between husband support to selection of contraception method (p value = 0835, and there is no relationship between religious leaders or community leaders on selection contraception method (p value = 0384). The most influential factor in the selection of LTCM non-hormonal is the attitude with OR 2,041.Keywords : selection of long term contraception, factor, affect

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.

The Optimization Selection of Input Variables for Mid-Term Power Load Forecasting Based on Gradually Similar Method

2014 ◽  
Vol 610 ◽  
pp. 274-278
Author(s):  
Ji Ping Zhu
Keyword(s):  
Load Forecasting ◽  
Economic Indicators ◽  
Shanxi Province ◽  
Forecasting Accuracy ◽  
Power Load ◽  
Power Load Forecasting ◽  
Simulation Results ◽  
Input Variables ◽  
Selection Of

Gradually similar method is putted forward in the paper. The rules of selecting the independents are analyzed. And the foundations of that the variable has been permitted to enter to or eliminate from the model are described. The idea is to forecast medium and long term load of shanxi Province with using this method, and reasonable to select the economic indicators having influence on the power load. Then, these economic indicators were screened by the gradually similar method. Gradually similar method new putted forward is used for the optimization selection of the model input variables, and forecasting accuracy is discussed .Simulation results show that the method brought forward is right and feasible.

scholarly journals Indicators of Body Reserve Opportunities for Young Gymnasts as One of the Factors for Successful Development of Initial Specialized Training

2018 ◽  
Vol 1 (96) ◽  
Author(s):  
Zinaida Kuznetsova ◽  
Ilshat Dauletshin ◽  
Stanislav Kuznetsov
Keyword(s):  
Power Supply ◽  
Anaerobic Power ◽  
Muscular Activity ◽  
The Body ◽  
Physical Culture ◽  
Specialized Training ◽  
Regulatory Requirements ◽  
Factors Affecting ◽  
Initial Stage ◽  
Significant Factors

Background. The article deals with the problem of selection in gymnastics and the reasons why it is necessary to research that. Artistic gymnastics carries the heaviest losses on the initial stages of specialized training, which explains the lack of science-based regulatory requirements in the gymnastics system, allowing diagnosing, assessing and predicting the development of the main indicators of physical condition and fitness of athletes in complex.Research aim was to develop additional criteria of young gymnasts’ selection at the initial stage of specialized training on the basis of the indicators of human body reserve opportunities.Methods. Experimental work was carried out with gymnasts aged 9 years (n = 15) and 10 years (n = 16) in the research laboratory of Povolzhskaya State Academy of Physical Culture, Sport and Tourism and sports complex “Yar Chally” in Naberezhnye Chelny, Republic of Tatarstan (Russia).Results. Gymnasts aged 9–10 years had a harmonious type of power supply of the body: more gymnasts had aerobic-anaerobic type of muscular activity power supply. Gymnasts who qualified in the obligatory program of category 3 on pommel horse equally represented only the second and the third biological groups.The results of correlation analysis suggest that for gymnasts aged 9 years, the most significant factors affecting their special physical and technical fitness included aerobic capacity source of muscle activity energy supply and general metabolic capacity and for gymnasts aged 10 years – capacity and anaerobic power glycolytic sources of energy and muscular activity.Discussion and conclusions. Obtained information on the preferred for gymnastics bioenergy groups can help coaches in predicting abilities of young gymnasts.Keywords:  sportspeople, gymnasts, selection, model descriptions, indicators of reserve opportunities.

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 PEMANFAATAN NCB DAN CBTL OLEH PRODUSEN ELEKTROTEKNIKA DI INDONESIA

2016 ◽  
Vol 17 (1) ◽  
pp. 21
Author(s):  
Teguh Pribadi Adinugroho ◽  
Danar A. Susanto ◽  
Febrian Isharyadi ◽  
Ellia Kristiningrum ◽  
Rachman Mustar
Keyword(s):  
Statistical Data ◽  
Domestic Investment ◽  
Engineering Product ◽  
Factors Affecting ◽  
Five Factors ◽  
The World ◽  
The Status ◽  
Product Manufacturer ◽  
Selection Of ◽  
Significant Factors

<p>Abstrak<br />Sejak tahun 2005 BSN mewakili Indonesia sebagai member body dalam IECEE. Sampai dengan saat ini Indonesia telah mempunyai 3 NCB dengan 4 CBTL yang telah mendapat pengakuan untuk beroperasi didalam IECEE CB Scheme, namun demikian potensi NCB dan CBTL tersebut belum dimanfaatkan secara optimal oleh produsen produk elektroteknika yang berlokasi di Indonesia. Berdasarkan data statistik CB Test Certificate (CBTC), hingga tahun 2012 baru terdapat 4 sertifikat yang diterbitkan oleh NCB di Indonesia (Teguh, dkk., 2014). Tujuan dari penelitian adalah untuk mengetahui faktor signifikan dari karakteristik produsen yang mempengaruhi pemanfaatan NCB dan CBTL Nasional. Hipotesa penelitian ini adalah karakter yang mempengaruhi adalah: (1) “Permodalan” untuk status PMA/PMDN, (2) “Pengetahuan” untuk pengetahuan produsen terhadap ketersediaan NCB dan CBTL di Indonesia, (3) “Kesadaran” untuk kesadaran perusahaan akan manfaat apabila tersedia NCB dan CBTL di Indonesia, (4) “Kesesuaian” untuk kesesuaian lingkup NCB dan CBTL dibandingkan dengan produk yang dibuat produsen, dan (5) “Penentu” untuk pihak penentu pemilihan NCB dan CBTL. Penelitian ini menggunakan metode deskriptif kuantitatif, wawancara langsung dengan responden serta analisis hasil dengan regresi berganda dan korelasi. Responden dipilih berdasarkan pada kriteria sebagai berikut: (1) tercantum dalam data statistik CBTC, (2) berlokasi di Indonesia, dan (3) produk produsen memiliki lingkup yang sama dengan lingkup NCB nasional (HOUS, LITE, INST dan BATT), diperluas dengan lingkup TRON dan OFF yang mendominasi dalam statistik CBTC di Indonesia dan dunia. Didapat responden sebanyak 28 perusahaan elektroteknika dengan tingkat kepercayaan mewakili populasi sebesar 95%. Kesimpulan penelitian adalah kelima faktor yang diujikan memberikan kontribusi kuat terhadap pemilihan NCB dan CBTL sebesar 78,2% dengan keseluruh arah korelasinya positif. Tiga faktor dengan signifikansi &lt;0,15 adalah “penentu”, “kesesuaian”, dan “pengetahuan”.<br />Kata kunci : IECEE CB Scheme, pemanfaatan NCB dan CBTL Nasional, karakter produsen elektronika.</p><p><br />Abstract<br />Since 2005 BSN represent Indonesia as a member body in the IECEE. Up to now, Indonesia has 3 NCB and 4 CBTL which has received recognition to operate within the IECEE CB Scheme, however the potential for NCB and CBTL is not used optimally by the electrical engineering product manufacturer located in Indonesia. Based on the statistical data of CB Test Certificate (CBTC), until 2012, there are only 4 certificates issued by the NCB in Indonesia (Teguh et al, 2014). The aim of the research was to determine the characteristics of the producers that act as significant factors affecting the utilization of National NCB and CBTL. Hypothesis of this study is the character that affect the utilization were: (1) "Capital" for the status of foreign / domestic investment, (2) "Knowledge" for producers’ knowledge to availability of NCB and CBTL in Indonesia, (3) "awareness" for awareness of the company to benefits if NCB and CBTL available in Indonesia, (4) "suitability" for NCB and CBTL scope suitability compared to producers’ products, and (5) "Determinant" for party who deciding the election NCB and CBTL. This study used descriptive quantitative method, direct interviews with respondents, multiple regression analysis and correlation. Respondents were selected based on following criterias: (1) listed in CBTC statistical data, (2) located in Indonesia, and (3) product manufacturers have the same scope with the scope of the national NCB (HOUS, LITE, INST and BATT), expanded with TRON and OFF that the statistics dominate the CBTC in Indonesia and the world. 28 respondents were obtained, with 95% of confidence level for representing it population. Conclusion of the research was the five factors tested contribute strongly to the selection of NCB and CBTL by 78.2%, with positive correlation. Three factors with significance &lt;0.15 were "determinant", "suitability", and "knowledge".<br />Keywords: IECEE CB Scheme, utilization of National NCB and CBTL, electronic producers characteristics.</p>

scholarly journals Coconut Cryopreservation: Present Status and Future Prospects

CORD ◽  
2017 ◽  
Vol 33 (1) ◽  
pp. 21
Author(s):  
Iroshini Welewanni ◽  
Dharshani Bandupriya
Keyword(s):  
Plant Species ◽  
Medium Term ◽  
Future Directions ◽  
Factors Affecting ◽  
Cryopreservation Techniques ◽  
Long Term Preservation ◽  
Small Holder ◽  
Selection Of ◽  
Very Low Temperature

Coconut is one of the most important small holder crops worldwide. Conservation of coconut as seeds or field gene banks is not effective due to a range of limitations. Cryopreservation, which is the conservation of living propagules at very low temperature (-196ºC), is the only method available currently for the long-term conservation of germplasm for problem plant species such as recalcitrant and vegetatively propagated plant species. This review summarizes different cryopreservation techniques that have been published from 1984 until the present in relation to different coconut material; it includes a brief discussion about short and medium-term cryopreservation before describing long-term preservation. It discusses factors affecting the process and success of cryopreservation, such as selection of plant material, pre-culture of tissues, osmoprotection, dehydration, cryo-storage, thawing and post-culturing of tissues, and finally to plants. The review also describes histological and ultra-structural studies on and the use of molecular markers to assess genetic stability after cryopreservation. Limitations and future directions related to coconut cryopreservation are discussed. Additional experiments are identified that will need to be undertaken to improve our understanding of the different cryopreservation methods.

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.

scholarly journals Phytoplankton Time-Series in a LTER Site of the Adriatic Sea: Methodological Approach to Decipher Community Structure and Indicative Taxa

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2045
Author(s):  
Ivano Vascotto ◽  
Patricija Mozetič ◽  
Janja Francé
Keyword(s):  
Structural Changes ◽  
Phytoplankton Community ◽  
Adriatic Sea ◽  
Methodological Approach ◽  
Average Life Span ◽  
Nearshore Environments ◽  
Long Term Ecological Research ◽  
Available Information ◽  
Selection Of

In the shallow and landlocked northeast Adriatic Sea, environmental factors have changed in recent decades. Their influence on seasonal and inter-annual variability of phytoplankton has been documented in the recent literature. Here, we decipher the long-term variability of phytoplankton phenology at a Long-Term Ecological Research site (Gulf of Trieste, Slovenia). Structural changes in the phytoplankton community (period 2005–2017) were analysed using a multivariate protocol based on Bayesian clustering. The protocol was modified from the literature to fit the needs of the study, using correspondence analysis and k-means clustering. A novel index for ordination and selection of taxa based on frequency and evenness was developed. The Total Inertia analysis showed that this index better preserved the available information. Typical seasonal assemblages were highlighted by applying the Indicative Value index in conjunction with likelihood ratio values. We obtained a rough picture of the seasonal separation of the diatom-dominated community from the mixed community and a refined picture of the phenology of the assemblages and bloom events. The spring diatom peak proved to be inconstant and short-lived, while the autumn bloom was generally long and diverse. As expected for nearshore environments, the average life span of the assemblages was found to be short-periodic (2–4 months). The second part of the year and the last part of the series were more prone to changes in terms of typical assemblages.

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