scholarly journals Use of the multi-factor regression model for temperature control in structurally isolated rooms of the railway stations

2021 ◽  
Vol 1151 (1) ◽  
pp. 012044
Author(s):  
V S Tynchenko ◽  
I V Markevich ◽  
A R Ogol ◽  
O V Baryshnikova ◽  
D V Rogova ◽  
...  
2020 ◽  
Vol 220 ◽  
pp. 01027
Author(s):  
Vitaly Makoveev ◽  
Liliya Mukhametova

Sustainable long-term development of the energy sector is impossible without a developed manufacturing industry and especially machine-building enterprises. The article offers a method for assessing the level of innovation development in the manufacturing industry and identifies the factors that have the greatest impact on the development of the process of creating and implementing innovations in this sector. A multi-factor regression model is constructed to determine the degree of influence of various socioeconomic factors on the level of development of innovative activity in manufacturing industries, as well as to develop proposals and recommendations for its activation.


2020 ◽  
Vol 220 ◽  
pp. 01048
Author(s):  
Vitaly Makoveev ◽  
Liliya Mukhametova

Sustainable long-term development of the energy sector is impossible without a developed manufacturing industry and especially machine-building enterprises. The article identifies the factors that have the greatest impact on the development of innovation in the manufacturing industry. A multi-factor regression model is constructed to determine the degree of influence of various socio-economic factors on the level of innovation development in manufacturing industries. An organizational and economic mechanism aimed at enhancing innovation in the manufacturing industry and increasing the competitiveness of the products of enterprises in this sector is proposed.


Buildings ◽  
2021 ◽  
Vol 12 (1) ◽  
pp. 15
Author(s):  
Pei Zhou ◽  
Songjie Wang ◽  
Zhao Jin ◽  
Gongsheng Huang ◽  
Jian Zhu ◽  
...  

An indoor high and open space is characterized by high mobility of people and uneven temperature distribution, so the conventional design and operation of air conditioning systems makes it difficult to regulate the air conditioning system precisely and efficiently. Thus, a Wireless Sensor Network was constructed in an indoor space located in Hong Kong to monitor the indoor environmental parameters of the space and improve the temperature control effectively. To ensure the continuity of the measurement data, three algorithms for reconstructing temperature, relative humidity and carbon dioxide data were implemented and compared. The results demonstrate the accuracy of support vector regression model and multiple linear regression model is higher than Back Propagation neural network model for reconstructing temperature data. Multiple linear regression is the most convenient from the perspective of program complexity, computing speed and difficulty in obtaining input conditions. Based on the data we collected, the traditional single-input-single-output control, zonal temperature control and the proposed zonal demand control methods were modeled on a Transient System Simulation Program (TRNSYS) control platform, the thermal coupling between the subzones without physical partition was taken into account, and the mass transfer between the virtual boundaries was calculated by an external CONTAM program. The simulation results showed the proposed zonal demand control can alleviate the over-cooling or over-heating phenomenon in conventional temperature control, thermal comfort and energy reduction is enhanced as well.


2017 ◽  
Vol 142 ◽  
pp. 4403-4411 ◽  
Author(s):  
Handong Wu ◽  
Wei Han ◽  
Dandan Wang ◽  
Lin Gao

2019 ◽  
Vol 34 (6) ◽  
pp. 924-924
Author(s):  
J Beach ◽  
H Ricketts ◽  
V McCaskey ◽  
S Taylor ◽  
M Harrell ◽  
...  

Abstract Objective The purpose of the current study was to examine the relationship between factors of personality and cognitive health. Methods Two hundred and two participants (M age = 19.51, SD = 3.33; M education = 12.40, SD = .75; 72.3% Female, 55.3% White, 36.0% African American, 4.6% Asian, 4.1% Other) completed the cognitive health questionnaire (CHQ) and a 120-item International Personality Item Pool Representation of the NEO-PI-R (IPIP-NEO) as a part of a larger battery in an institutional setting. A CHQ total score was calculated based on items of four positive factors of cognitive health including social/intellectual activities, nutrition, exercise, and eating habits. Results A multiple linear regression using backwards elimination was calculated to predict scores on the Cognitive Health Questionnaire utilizing the five personality factors of the IPIP-NEO. The overall five-factor regression model yielded a significant regression equation (F(5,196) = 7.76, p < .001), with an R2 of .165. The final three-factor regression model consisting of extraversion, openness, and consciousness yielded significant results (F(3,198) = 12.70, p < .001), with an R2 of .161. Conclusions This exploratory study investigated the relationship between factors of personality and cognitive health. Although a multiple regression model involving all five factors of personality were significantly predictive of cognitive health, the results of this study indicate that greater variance of cognitive health is predicted by extraversion, openness and conscientiousness than neuroticism and agreeableness. Further research should investigate each factor of cognitive health and how these components are predicted by features of personality.


2019 ◽  
Vol 5 (10) ◽  
pp. 19-24
Author(s):  
I. Zhigarev

This article is devoted to the question of constructing a regression model, which will make it possible to analyze and predict the outcome of e-sports meetings in the DOTA 2 discipline using the Virtus Pro team as an example. In addition, throughout the text, a brief analysis of the e-sports industry these days, as well as a brief explanation of the essence of the chosen e-sports discipline are taken into consideration. Convincing arguments are presented that make it possible for the reader to understand that e-sports today can equal traditional sports in the following indicators: the number of followers, peak views as well as the amount of money circulating in the industry. The law introduced during the research is intended for the following external users: e-sports organizations, potential investors, breeders as well as for the players themselves. The resulting model was analyzed and described using various statistical indicators. A correlation grid was obtained, indicators of regression statistics were described, analysis of variance was made with a detailed description of its results. Factor signs considered during the research are described in detail for reader’s understanding. It is important to note that the resulting law makes it possible to apply it not only to the object of study, but also to other e-sports organizations having a team in this discipline, provided that their styles of playing the game have similarities. The tool for deriving the regression law was Microsoft Excel. The source of data is the team’s statistics, which were collected during real e-sports meetings by the leading site of statistics and the gaming community DOTA 2 — Dotabuff.


Author(s):  
Andrey Yakovlev ◽  
Nadezhda Bukhonova ◽  
N. Ivanov

Annotation. to conduct a prospective analysis of profitability in organizations that have a constant level and cost structure, you can use sales planning models. With their help, it is possible to determine and analyze the average price of goods for the organization and conduct a prospective analysis of the organization's income. The analysis of a number of factors which, in our opinion, will determine economic efficiency of activity of the furniture enterprise, and also its ability to create profit is carried out. The proposed three-factor regression model of the dependence of sales volume on such factors as: attendance of the furniture salon, the number of main staff, the number of product balances in the store's warehouse. This model is relevant for furniture companies and allows you to plan the sales volumes of furniture sets and, consequently, the company's income. The analysis of variance showed that the model is non-random and reliable. The equation reflects a non-random, stable, significant dependence of the result and explanatory factors. The significance value of F shows the high reliability of the results and the absence of randomness and the presence of a justified pattern in our study. The developed model will allow to carry out a prospective analysis of the profitability of furniture enterprises, at a constant level and cost structure.


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