scholarly journals TRAVEL DELAY OF VEHICLES QUEUE AT A TRAFFIC SIGNAL

2020 ◽  
Vol 14 (3) ◽  
pp. 321-332
Author(s):  
Setiyo Daru Cahyono ◽  
Tomi Tristono ◽  
Seno Aji ◽  
Pradityo Utomo

Mathematical modeling assumes that the vehicle’s volume has a uniform pattern. Due to traffic lightssettings, the number of vehicles queue grows linearly. The reality, the stochastic arrivals of the vehiclescould be (1) in the randomized arrivals, (2) in the form of groups/ platoon, or (3) in the mixed arrivals. Itis observed that the arrival of the vehicles in the queue tends to have a normal pattern. The objective ofthis research is to study the implications of the arrival categories to the travel delay. For simulation, ituses the numerical method referring to the real state. The result indicates that the calculations of thetravel delay become precise for all vehicles.

2019 ◽  
Vol 65 (2) ◽  
pp. 205-219 ◽  
Author(s):  
V. Merabishvili

The mortality rate is one of the most important criteria for assessing the health of the population. However, it is important to use analytical indicators correctly, especially when evaluating time series. The value of the “gross” mortality is closely linked with a specific weight of persons of elderly and senile ages. All international publications (WHO, IARC, territorial cancer registers) assess the dynamics of morbidity and mortality only by standardized indicators that eliminate the difference in the age composition of the compared population groups. In Russia, from 1960 to 2017, the share of people of retirement age has increased more than 2 times. The structure of mortality from malignant tumors has changed dramatically. The paper presents the dynamics of gross and standardized mortality rates from malignant tumors in Russia and in all administrative territories. Shows the real success of the Oncology service. The medium-term interval forecast until 2025 has been calculated.


Mathematics ◽  
2021 ◽  
Vol 9 (13) ◽  
pp. 1569
Author(s):  
Jesús Montejo-Gámez ◽  
Elvira Fernández-Ahumada ◽  
Natividad Adamuz-Povedano

This paper shows a tool for the analysis of written productions that allows for the characterization of the mathematical models that students develop when solving modeling tasks. For this purpose, different conceptualizations of mathematical models in education are discussed, paying special attention to the evidence that characterizes a school model. The discussion leads to the consideration of three components, which constitute the main categories of the proposed tool: the real system to be modeled, its mathematization and the representations used to express both. These categories and the corresponding analysis procedure are explained and illustrated through two working examples, which expose the value of the tool in establishing the foci of analysis when investigating school models, and thus, suggest modeling skills. The connection of this tool with other approaches to educational research on mathematical modeling is also discussed.


2013 ◽  
Vol 18 (9) ◽  
pp. 571

This call for manuscripts is requesting articles that address how to use mathematical models to analyze, predict, and resolve issues arising in the real world.


2021 ◽  
Vol 1 (10(74)) ◽  
pp. 12-17
Author(s):  
O. Mitchuk ◽  
E. Kryvka

The article considers the importance of the stage of writing headlines in the process of preparing PR-texts on tourism, indicates the features of creating titles of different types of PR-texts published in online publications, identifies factors that affect the reader's attention and facilitate the perception of the title. When promoting a tourism product on the foreign market, it is important to adhere to the principle of conformity. This means that the image that is promoted on the market must correspond to the level of development of society, so as not to irritate the client by the inconsistency of the created image with the real state of the tourist area.


Author(s):  
Viktoriia Shvyrka ◽  
◽  
Asia Lysohor ◽  

The article discloses the real state and prospects of the education of culture of communication of doctoral candidates for higher education in the educational process of an institution of higher education, which is considered as an integral part of the overall process of professional development of a future specialist. The results of the research of real state of students' culture of communication on the basis of cognitive, motivational and activity criteria are presented. The pedagogical conditions of education of communication culture of an institution of students of higher education are suggested. The stages of the implementation of pedagogical conditions are presented: adaptational, basic, advanced, which are designed to form knowledge of the characteristics of the communication process, skills and abilities of adequate communicative behavior in various situations of verbal and non-verbal communication.


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