scholarly journals Applying serials selection and assessment methods to support technical research (exemplified by power engineering subdisciplines)

Author(s):  
Vladimir Lazarev ◽  
Inna Yurik ◽  
Natalya Dydik

When selecting world scientific serials for certain disciplines in the natural and technical sciences, the indicators of selected publications citation in specialized journals and the specialized journals citation in the selected publications are used. The study was conducted within the topics “Energy security and energy conservation, energy efficient technologies and engineering». Total citation in individual specialized journals was calculated along with the “discipline impact factor” - an indicator similar to the impact factor having in its numerator the value of citation of journals in the selected specialized journals rather than the whole range of journals being indexed by JournalCitationReports®. The serials were also selected by their total citation of the selected specialized journals. The indicator similar to the “discipline impact factor” is calculated as the fraction of the number of the serials’ links to the specialized journals publications in “the citation window” made by the serials being assessed on the specialized journals publication within the “publication window” and the citing publications in “the citation window”. In all the cases, the citation window equals one year, and the publication window equals “5 + 1” years, i.e. five years prior to the year when the links are being recorded.

1991 ◽  
Vol 44 (9) ◽  
pp. 963-982 ◽  
Author(s):  
Ivan T. Robertson ◽  
Paul A. Iles ◽  
Lynda Gratton ◽  
David Sharpley

Nutrients ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 836 ◽  
Author(s):  
Hang Huong Ling ◽  
Kun-Yun Yeh ◽  
Shu-Hang Ng ◽  
Cheng-Hsu Wang ◽  
Chien-Hong Lai ◽  
...  

Study on the impact of pretreatment malnutrition on treatment outcomes in locally advanced head and neck cancer (LAHNC) patients is still lacking. We prospectively collected various malnutrition assessment methods including nutrition indexes, inflammatory biomarkers, and lean body mass index (LBMI) data before treatments. The one year mortality rate was assessed, and the factors associated with this outcome were investigated. Furthermore, the association between malnutrition assessment methods was examined. A total of 113 patients were enrolled. By prognostic stratification based on the prognostic nutritional index (PNI) and platelet-to-lymphocyte ratio (PLR) combination, the low PNI/high PLR group had highest and the high PNI/low PLR group had the lowest mortality rate. Furthermore, the PNI was positively correlated with the LBMI, and the PLR was inversely correlated with the LBMI. PNI and PLR were found to be independent prognostic factors of one year mortality and also associated with the loss of muscle.


Complexity ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-17
Author(s):  
Jian Zhou ◽  
Lin Feng ◽  
Ning Cai ◽  
Jie Yang

The variation of the journal impact factor is affected by many statistical and sociological factors such as the size of citation window and subject difference. In this work, we develop an impact factor dynamics model based on the parallel system, which can be used to analyze the correlation between the impact factor and certain elements. The parallel model aims to simulate the submission and citation behaviors of the papers in journals belonging to a similar subject, in a distributed manner. We perform Monte Carlo simulations to show how the model parameters influence the impact factor dynamics. Through extensive simulations, we reveal the important role that certain statistics elements and behaviors play to affect impact factors. The experimental results and analysis on actual data demonstrate that the value of the JIF is comprehensively influenced by the average review time, average number of references, and aging distribution of citation.


2019 ◽  
pp. 62-72
Author(s):  
Oksana Mykoliuk ◽  
Valentyna Bobrovnyk

Introduction. Nowadays, the formation of a policy of the energy-efficient economic activity is a necessary condition for revival of the national production, growth of innovative attractiveness, sustainable development, as well as achieving the European standards for energy security. Development of mechanical engineering based on implementing the energy conservation policy and using the energy-efficient policy will benefit domestic enterprises under a competitive environment. Purpose. The article’s purpose is to analyse the state of domestic mechanical engineering, as well as to reveal opportunities and prospects for enhancing energy efficiency and ensuring energy security. Methodology. The methodological basis of the scientific paper encompasses fundamental provisions of economics, scientific cognition, the general scientific principles, and historical and system approaches to studying a matter of the formation and development of energy conservation and energy efficiency in the industry of mechanical engineering. Results. The article examines the state and indicators of development of the industry of mechanical engineering, as well as prospects of implementing the energy conservation policy. The authors have analysed directions of investment support of enterprises. The authors have determined factors conducing to activation of the government activity for ensuring energy security of enterprises of the industry of mechanical engineering. The authors have proven that the latter is a foundation of the economic potential of the country, since the state of socio-economic development of Ukraine depends on a level of efficiency being inherent to the activity of enterprises operating in this industry.


2020 ◽  
Vol 5 (1) ◽  
pp. 7-10
Author(s):  
Cameron Lago ◽  
Mike Pham

We do not always think of the impact we are making on the climate every time we turn on a light, use a computer or watch T.V. For this research-informed action research project we studied how electricity usage can impact the climate. We conducted a mini correlational study at Erindale Secondary School to learn more about our peers’ electricity consumption. We asked our peers how many fluorescent light bulbs they use in their homes, and how often they turn off their lights when they leave the room. Our mini study reveals that the majority of boys and girls do not know how many light bulbs in their homes are energy efficient. In addition, equal proportion of girls and boys always or sometimes turn off the lights when they are not in use. For the action portion of our project, we organized the Earth Hour at our school to lower the energy consumption and to raise awareness about the importance of energy conservation. The Principal of our school also agreed to turn off the lights in the cafeteria every night to save more energy. We also challenged David Suzuki Secondary School in Mississauga to a friendly competition to see which school will save more energy. We still await the electricity usage data from the board to see who won the challenge.


2000 ◽  
Author(s):  
Gopal P. Maheshwari ◽  
Raba’a A. Al-Murad ◽  
Yehya N. Al-Hadban ◽  
Mohammed J. Sebzali

Abstract Air-conditioning (A/C) is an important sector for Kuwait. It is not only the single largest consumer of electricity, its yearly import accounts for well over 200 million US dollars. Energy conservation measures have been in practice in Kuwait since 1983 through a well defined code of practice enforced by the Ministry of Electricity and Water (MEW). Additional energy efficient products and techniques developed thereafter, however, have not been introduced as the electricity is highly subsidized and the MEW code has not been modified. Applications of some of the cost effective energy conservation measures and use of cool storage for peak power shaving have been carried out as a demonstration project in a two-story building, housing the Center for Speech and Audio Therapy having 3,180 m2 of air-conditioned space. As a first step, the building cooling load was re-estimated using an energy simulation computer program and proper design specifications. It was found to be 31.4% lower than the original estimated load of 161.3 tons of refrigeration (RT). Use of energy-efficient windows and cooling recovery units that were found to be cost-effective resulted in a final building load of 64.5 RT. Finally, ice storage was incorporated to meet 50% of the peak cooling load. This paper presents the complete design details including the impact of a building load simulation program and cost benefit analysis of important energy conservation measures. It also presents a design and operation scheme for a cool storage, assisted A/C system and its performance results collected during the summer of 1998.


2020 ◽  
pp. 50-64
Author(s):  
Kuladeep Kumar Sadevi ◽  
Avlokita Agrawal

With the rise in awareness of energy efficient buildings and adoption of mandatory energy conservation codes across the globe, significant change is being observed in the way the buildings are designed. With the launch of Energy Conservation Building Code (ECBC) in India, climate responsive designs and passive cooling techniques are being explored increasingly in building designs. Of all the building envelope components, roof surface has been identified as the most significant with respect to the heat gain due to the incident solar radiation on buildings, especially in tropical climatic conditions. Since ECBC specifies stringent U-Values for roof assembly, use of insulating materials is becoming popular. Along with insulation, the shading of the roof is also observed to be an important strategy for improving thermal performance of the building, especially in Warm and humid climatic conditions. This study intends to assess the impact of roof shading on building’s energy performance in comparison to that of exposed roof with insulation. A typical office building with specific geometry and schedules has been identified as base case model for this study. This building is simulated using energy modelling software ‘Design Builder’ with base case parameters as prescribed in ECBC. Further, the same building has been simulated parametrically adjusting the amount of roof insulation and roof shading simultaneously. The overall energy consumption and the envelope performance of the top floor are extracted for analysis. The results indicate that the roof shading is an effective passive cooling strategy for both naturally ventilated and air conditioned buildings in Warm and humid climates of India. It is also observed that a fully shaded roof outperforms the insulated roof as per ECBC prescription. Provision of shading over roof reduces the annual energy consumption of building in case of both insulated and uninsulated roofs. However, the impact is higher for uninsulated roofs (U-Value of 3.933 W/m2K), being 4.18% as compared to 0.59% for insulated roofs (U-Value of 0.33 W/m2K).While the general assumption is that roof insulation helps in reducing the energy consumption in tropical buildings, it is observed to be the other way when insulation is provided with roof shading. It is due to restricted heat loss during night.


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