scholarly journals REFINING THE CALCULATION OF THE CAR TRACTION POWER

2019 ◽  
Vol 16 (5) ◽  
pp. 572-579 ◽  
Author(s):  
E. A. Maksimov ◽  
E. P. Chelyabinsk
Keyword(s):  
Elastic Modulus ◽  
Comparative Analysis ◽  
Contact Zone ◽  
Traditional Method ◽  
Traditional Methods ◽  
Friction Forces ◽  
Refined Equation ◽  
Refined Calculation ◽  
Traction Power ◽  
Tangential Friction

Introduction. Traction power of the car is used to determine its traction-speed properties. The purpose of the paper is the calculation refinement of the car traction power.Materials and methods. The authors used the methodology of the refined calculation of the car traction power.Results. The authors carried out the comparative analysis of the refined and traditional methods for calculating traction power. As a result, the authors obtained the refined equation for calculating the traction power, taking into account the elastic modulus, the width of the contact track, the free radius of the wheel, the deflection of the tire and the tangential friction forces in the contact zone. The largest discrepancy between the curve of the vehicle’s traction power calculated by the updated methodology and the curve of the vehicle’s traction power calculated by the traditional method was 26.8%.Discussion and conclusions. The results of the research are useful to specialists of automobile and transport enterprises and masters of universities to compare the traction and speed properties of the various car types.

scholarly journals A Flexible Renewable Smart Production with RDG, Considering Power Quality

2020 ◽  
Vol 9 (2) ◽  
pp. 409-415
Keyword(s):  
Elastic Modulus ◽  
Power Quality ◽  
Heuristic Search ◽  
Traditional Method ◽  
Bat Algorithm ◽  
Total Power ◽  
Sensitivity Factor ◽  
Power Losses ◽  
Distributed Generations ◽  
Modified Bat Algorithm

This report largely focused on the influence on the delivery system of the Renewable Distributed Generations (RDGs). DG's intercourse showed that the suggested the traditional method of radial distribution into a multiple DG scheme. The main contribution of this study is to reduce total power losses and increase the distribution system's power quality using RDGs. The Loss sensitivity factor (LSF) is used to find the RDGs. A heuristic search novel The Modified Bat Algorithm (MBA) is used to define the amount of the RDGs. MBA is largely focused on microbats' higher elastic modulus. The proposed MBA is measured on standard bus test systems IEEE 33 and 69.

scholarly journals The quality of contemporary records made by handwriting. Comparative analysis over the period of nineteen years

2018 ◽  
Vol 47 ◽  
pp. 115-126
Author(s):  
Iwona Zieniewicz
Keyword(s):  
Comparative Analysis ◽  
Traditional Method ◽  
Judicial Practice ◽  
The Future

Handwriting is a method to express and preserve thoughts by means of graphic signs. In the investigative and judicial practice, it is treated as an individual creation used for identification purposes in case of doubts over the authenticity of a written record. Nowadays, however, writing by hand is not the only way of conveying information, which results in moving away from this traditional method in favour of modern solutions. In the future, this tendency may limit the possibility to identify the author of a record on the basis of a handwritten record. Therefore, the purpose of this publication is to check whether contemporary handwritings show any signs of deterioration in the quality of handwritten records.

scholarly journals EFFICIENCY OF CLASSICAL AND MODERN DISTANT METHODS OF TEACHING PHONETICS IN THE SYSTEM OF SCHOOL EDUCATION

2020 ◽  
pp. 141-145
Author(s):  
Елена Анатольевна Филатова
Keyword(s):  
Comparative Analysis ◽  
Computer Programs ◽  
Point Of View ◽  
Specific Training ◽  
Teaching English ◽  
Traditional Methods ◽  
Computer Methods ◽  
Russian State ◽  
Modern Methods ◽  
And Training

Приводится сравнительно-сопоставительный анализ современных традиционных и компьютерных методик обучения сегментной и супрасегментной фонетике английского языка в условиях аудиторного билингвизма, обосновывается необходимость введения новых методик обучения устной речи в современных школьных УМК, нацеленных на подготовку к устной части ЕГЭ по иностранному языку, а также необходимость разработки в них новых критериев оценивания фонетической стороны речи. Автор дает обобщенную характеристику традиционных методов обучения произношению и анализируют эффективность их применения на уроке иностранного языка в современной школе в среднем и старшем звене обучения. Приводятся основные задачи и цели компьютерного обучения фонетике, а также специфика его использования в аудитории искусственного билингвизма. На примере конкретных компьютерных программ анализируется эффективность дистанционных методов обучения с точки зрения подготовки школьников к сдаче государственных экзаменов. A comparative analysis of traditional and computer methods of teaching English segmental and suprasegmental phonetics in conditions of auditory bilingualism is given. The need for new modern methods of teaching and textbooks is justified. It is revealed that new computer methods of teaching should be aimed for preparing and training for the oral part of the Russian State Exam and have different estimation criteria. General characteristics of basic traditional methods (articulatory and acoustic) and their effectiveness is shown on the examples of concrete Russian and foreign editions, in comparison with popular computer programs. Computer programs for teaching English phonetics are analyzed from the point of view of their specific training of auditory bilinguals.

A NEW APPROACH FOR TEXT SIMILARITY USING ARTICLES

2008 ◽  
Vol 07 (01) ◽  
pp. 23-34 ◽  
Author(s):  
ELSAYED ATLAM
Keyword(s):  
Information Retrieval ◽  
Text Analysis ◽  
Traditional Method ◽  
Text Similarity ◽  
Traditional Methods ◽  
Document Similarity ◽  
New Approach ◽  
Text Collections ◽  
Subject Areas

Conventional approaches to text analysis and information retrieval which measured document similarity by considering all information in texts are relatively inefficiency for processing large text collections in heterogeneous subject areas. Previous researches showed that evidence from passage can improve retrieval results. But it also raised questions about how passage is defined, how they can be ranked efficiently, and what is their proper rule in long structure documents. Moreover, the frequency of "the" with important sentence is efficiently to summarize the text by dexterity way. We previously proposed an approach for extracting sentences which including article "the" by some restrict rules to carry out effectiveness passages. Based on previous approaches, this paper presents a new Passage SIMilarity (P-SIM) measurements between documents based on effectiveness passages after extracting them using article "the". Moreover, our new approach showing that this method is more efficient than traditional methods. Also, Recall and Precision are achieved by 92.6% and 97.5% respectively, depending on extracted passages. Furthermore, Recall and Precision significantly improved by 38.3% and 44.2% over the traditional method. The proposed methods are applied to 3,990 articles from the large tagged corpus.

The Application of Ground Granulated Blast Slag in Soft Soil Treatment

2013 ◽  
Vol 405-408 ◽  
pp. 262-269
Author(s):  
Li Shao ◽  
Long Liu ◽  
Yi Min Tao ◽  
Ling Miao Lou
Keyword(s):  
Comparative Analysis ◽  
Traditional Method ◽  
Economic Benefit ◽  
Soft Soil ◽  
Social Benefit ◽  
Soil Treatment ◽  
Atterberg Limits ◽  
Environmental Benefit ◽  
Lime Stabilization ◽  
Compaction Characteristics

The characters, research and utilization of Ground Granulated Blast Slag are presented in this paper. Some current use of GGBS in soft soil treatment is introduced. In addition, the paper also focuses on the comparative analysis of the effects of GGBS and Lime Stabilization which is the traditional method in soft soil treatment on compaction characteristics & Atterberg limits. Next, the strength mechanism of GGBS, a kind of Soli Stabilizer applied in soft soil treatment, is mainly explained and also the validity of GGBS has been proved. All of these indicate that GGBS has the superiority of social benefit, economic benefit and environmental benefit in soft soil treatment.

scholarly journals ANTERIOR CRUCIATE LIGAMENT INJURIES IN HIGH SCHOOL FEMALE AND MALE SOCCER ATHLETES: ARE MATCH ACL RATES BEING UNDERESTIMATED?

2019 ◽  
Vol 7 (3_suppl) ◽  
pp. 2325967119S0000
Author(s):  
Aaron D. Gray ◽  
Scott M. Miller ◽  
Samuel Galloway ◽  
Seth Sherman ◽  
Emily Leary ◽  
...  
Keyword(s):  
High School ◽  
At Risk ◽  
Traditional Method ◽  
Female Athletes ◽  
Injury Rate ◽  
Acl Injury ◽  
Traditional Methods ◽  
Male Athletes ◽  
Acl Injuries ◽  
Injury Rates

Background: The purpose of this study was to investigate the incidence of anterior cruciate ligament (ACL) injuries in Missouri high school female and male soccer players during the 2011-2013 seasons, using a single postseason survey sent to coaches. Our hypothesis is a single postseason survey be a feasible method to measure a large number of athletic exposures (AEs) and ACL injuries. We also hypothesize that “traditional” methods for calculating athletic exposures likely underestimate the actual burden of ACL injuries in high school soccer matches. Methods: The study was IRB approved through the University of Missouri. A web-based survey was developed and sent to every girls and boys high school soccer coach in Missouri using a Missouri State High School Activities Association (MSHSAA) database. In order to calculate AEs, questions were asked about the average number of athletes who participated in tryouts, practices, and matches along with the specific number of tryouts, practices, and matches for the 2011-2012 and 2012-2013 seasons. Coaches were also asked the number of ACL injuries their team suffered. No medical personnel were involved in filling out the surveys. Athletic exposures (AEs) were calculated using the formulas below. Match athletic exposures were calculated using a “traditional” method and also an “athlete at risk” method. The primary outcome measure was ACL injuries. Formulas for Calculation of Athletic Exposures (AEs) Tryouts & Practice= (a*A) + (b*B) Match (Traditional)= (c*C) Match (Athlete at Risk)= (11*C) a = average number of players participating in tryouts A = number of tryout sessions b = average number of players participating in practices B = number of practices in a season c = average number of players participating in matches C = number of matches in a season Results: In total, 885 coaches were sent surveys and 160 (18.1%) coaches responded, with 84 coaches representing girls soccer teams and 76 representing boys teams. A total of 323,010 AEs (160,756 female and 162,254 male) were reported of which 228,608 AEs (71%) took place in practices. 94,402 AEs occurred in matches using the “traditional” method and 61,963 AEs in matches using the “athlete at risk” method. 36 ACL injuries (28 female and 8 male) were reported. Of the 28 female ACL injuries, 25 happened during high school soccer activities (23 match, 2 practice). 3 ACL injuries occurred outside of high school soccer activities (1 club soccer, 1 volleyball, 1 unknown.) All 8 male ACL injuries were suffered during a high school match. Female athletes had an ACL injury rate of 0.16/1000 AEs compared to male athletes 0.05/1000 AEs (Table 1). Female athletes had a practice ACL injury rate of 0.02/1000 AEs and there were no ACL injuries suffered by male athletes in practice. Female athletes had a match ACL injury rate of 0.47/1000 AEs using “traditional” method and 0.70/1000 AEs by the “athlete at risk” method. Male athletes had a match ACL injury rate of 0.18/1000 AEs “traditional” method and 0.28/1000 AEs “athlete at risk” method (Figure 1). Female high school soccer athletes had a 3.2x greater risk of ACL tear than male high school soccer athletes. Female athletes were 26x more likely to tear their ACL in a match compared to practice. ACL match injury rates were 50-55% higher using the “athlete at risk” method compared to “traditional” methods for calculating match injury rates. Conclusion/Significance: A single postseason survey sent to coaches was successful in measuring AEs and ACL injury rates for a large population of high school soccer athletes. This represents an economical and feasible mechanism compared to previous studies (Table 2) to measure ACL injury rates for a high number of teams. It also allows ACL injury rates to be measured for schools and teams that do not have certified athletic trainers. “Traditional” methods for calculating match ACL injury rates greatly under represent ACL injuries compared to the “athlete at risk” method which is more representative of true injury risk exposure. A very high percentage of ACL injuries occurred during matches even though matches were responsible for only 29% of AEs. If future studies have limited resources, they should consider not recording practice AEs and ACL injuries since the likelihood of an ACL injury occurring during practice is very low compared to a match. [Table: see text][Table: see text][Figure: see text]

scholarly journals Comparative analysis of the dependence of the bulk elastic modulus of the liquid on pressure and gas factor

2019 ◽  
Vol 1399 ◽  
pp. 055083 ◽  
Author(s):  
A S Lunev ◽  
A A Nikitin ◽  
Y F Kaizer ◽  
A V Lysyannikov ◽  
D A Sokolov ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Comparative Analysis ◽  
Bulk Elastic Modulus

Molecular dynamics study on the tensile properties of graphene/Cu nanocomposite

2017 ◽  
Vol 06 (03) ◽  
pp. 1750021 ◽  
Author(s):  
Jun Hua ◽  
Zhirong Duan ◽  
Chen Song ◽  
Qinlong Liu
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Tensile Strength ◽  
Elastic Modulus ◽  
Comparative Analysis ◽  
Strain Rate ◽  
Ultimate Strength ◽  
Strain Rates ◽  
Single Crystal Copper ◽  
Single Slice

In this paper, the mechanical properties, including elastic properties, deformation mechanism, dislocation formation and crack propagation of graphene/Cu (G/Cu) nanocomposite under uniaxial tension are studied by molecular dynamics (MD) method and the strain rate dependence is also investigated. Firstly, through the comparative analysis of tensile results of single crystal copper (Cu), single slice graphene/Cu (SSG/Cu) nanocomposite and double slice graphene/Cu (DSG/Cu) nanocomposite, it is found that the G/Cu nanocomposites have larger initial equivalent elastic modulus and tensile ultimate strength comparing with Cu and the more content of graphene, the greater the tensile strength of composites. Afterwards, by analyzing the tensile results of SSG/Cu nanocomposite under different strain rates, we find that the tensile ultimate strength of SSG/Cu nanocomposite increases with the increasing of strain rate gradually, but the initial equivalent elastic modulus basically remains unchanged.

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