Introduction

2019 ◽  
pp. 1-14
Author(s):  
Johannes Lenhard

The chapter provides a brief overview of the history of simulation modeling and of philosophical accounts dealing with simulation. Computer and simulation modeling, it is stated, do form a new exploratory and iterative type of mathematical modeling. Four aspects are introduced: experiment and artificiality, visualization, plasticity, and epistemic opacity. The key thesis is that the novelty of simulation modeling rests on how these aspects are combined into a combinatorial style of reasoning. The computer as an instrument does not only speed up calculations but also channels mathematical modeling. This is exerting transformational power on central concepts like solution, validation, and the real—instrumental divide.

2020 ◽  
Vol 39 (6) ◽  
pp. 8399-8408 ◽  
Author(s):  
Sergei G. Chernyi ◽  
Aleksei V. Vyngra ◽  
Bogdan P. Novak

In order to implement and demonstrate all the processes associated with the real stability trial system on vessels, a ship’s model was made. The developed model consists of electrical and hardware parts. It is concluded that the model is applicable for the study of issues of automatic control of the ship’s list, simulating various loading options. Scalable loading studies of various types and sizes of cargo were carried out. The results of the study showed the correct operation of the model according to a specified algorithm. To work with the microcontroller and to code, the mathematical modeling environment Matlab/Simulink was used. The results of the study showed that the created control system is able to secure the vessel during various types of loading operations, speed up the loading process, thus reducing the time spent at the port stay and save port costs.


2008 ◽  
Vol 8 (3) ◽  
pp. 74-78
Author(s):  
hank shaw

Portugal has port, Spain has sherry, Sicily has Marsala –– and California has angelica. Angelica is California's original wine: The intensely sweet, fortified dessert cordial has been made in the state for more than two centuries –– primarily made from Mission grapes, first brought to California by the Spanish friars. Angelica was once drunk in vast quantities, but now fewer than a dozen vintners make angelica today. These holdouts from an earlier age are each following a personal quest for the real. For unlike port and sherry, which have strict rules about their production, angelica never gelled into something so distinct that connoisseurs can say, ““This is angelica. This is not.”” This piece looks at the history of the drink, its foggy origins in the Mission period and on through angelica's heyday and down to its degeneration into a staple of the back-alley wino set. Several current vintners are profiled, and they suggest an uncertain future for this cordial.


Author(s):  
Stephen Verderber

The interdisciplinary field of person-environment relations has, from its origins, addressed the transactional relationship between human behavior and the built environment. This body of knowledge has been based upon qualitative and quantitative assessment of phenomena in the “real world.” This knowledge base has been instrumental in advancing the quality of real, physical environments globally at various scales of inquiry and with myriad user/client constituencies. By contrast, scant attention has been devoted to using simulation as a means to examine and represent person-environment transactions and how what is learned can be applied. The present discussion posits that press-competency theory, with related aspects drawn from functionalist-evolutionary theory, can together function to help us learn of how the medium of film can yield further insights to person-environment (P-E) transactions in the real world. Sampling, combined with extemporary behavior setting analysis, provide the basis for this analysis of healthcare settings as expressed throughout the history of cinema. This method can be of significant aid in examining P-E transactions across diverse historical periods, building types and places, healthcare and otherwise, otherwise logistically, geographically, or temporally unattainable in real time and space.


2020 ◽  
Vol 2020 (10-3) ◽  
pp. 126-135
Author(s):  
Bolotbek Abdrakhmanov

To analyze the repressive policy of the ruling party and NKVD organs towards the foreigners who lived in Kyrgyzstan in 1937-1938 years. The real materials being used in this research make it possible to think over the events of that complicated period in a new way and give them certain appreciation. Therefore the main aim of the article is to bring together new materials to through the light on the nature of the mass repressions towards a number of soviet citizens as foreign nationals.


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.


1877 ◽  
Vol 10 (1) ◽  
pp. 131-156
Author(s):  
J. H. Batten

The cultivation of Tea in Kumaon has become so important and profitable, that it is interesting to trace the early history of this industry; and the duty of placing on record as true an account as possible of its introduction, rise and progress, is one which ought not to be neglected by those who are acquainted with the real facts; yet, after all, there is not very much to be told, even by those in full possession of all the data, when they show that, in this case—belonging, as it does, in an especial manner, to the best interests of British India—the seed of the sower “fell upon good ground, and yielded fruit, some an hundred-fold, some sixty, some thirty.”


2012 ◽  
pp. 41-55
Author(s):  
Marco Morini

The economy matters. This is one of the dogmas taught us by those who have studied the history of the American presidential elections. But is this collective perception of the influence of economic data on individual electoral behaviour confirmed by statistical analysis of the history of presidential elections? This study shows that the most commonly used economic indicators are poor predictors of election outcomes, and also that variation in the approval rating of the incumbent president is a variable independent from the real economic data.


Author(s):  
В.В. Хутарев-Гарнишевский

Публикуемый источник является отрывком из дневника депутата Московской городской Думы Н.П. Вишнякова (1844-1927). Автор лично не принимал участия в боевых действиях, но находился в самом эпицентре боевых действий между «красными» и «белыми», так как проживал с семьей в центре города. Именно эти события часто называют началом полноценной Гражданской войны. Его дневник отражает психологическое состояние мирного горожанина, оказавшегося заложником гражданского противостояния на улицах Москвы.Особый интерес представляют описания особенностей быта москвичей, циркулирующие среди них слухи, домыслы, их надежды и страхи, а также поведенческие стратегии различных социальных слоев. Особую ценность представляет то, что автор делал свои записи два-три раза в день, подробно фиксируя происходящее. Подобного рода источники крайне немногочисленны.Мемуарное и эпистолярное наследие Н.П. Вишнякова давно признано уникальным источником по истории общественно-политической, культурной и экономической жизни Москвы, но никогда не было опубликовано полностью. Лишь дважды публиковались небольшие отрывки.Данная публикация является частью работы по подготовке полного издания эпистолярного наследия Н.П. Вишнякова, который был вовлечен почти во все политические и экономические процессы Москвы времен правления императора Николая II. Он был депутатом (гласным) Московской Думы с 1873 по 1917 гг. с пятилетним перерывом в 1892--1897 гг., мировым судьей, известным ученым-геологом и краеведом.Для публикации были раскрыты многочисленные сокращения топонимов, а также расшифрованы индивидуальные, характерные для автора сокращения.Особую трудность представляет почерк Н.П. Вишнякова, подчас очень сложный для понимания и в отдельных случаях не поддающийся расшифровке.Эпистолярное наследия Н.П. Вишнякова весьма обширно, а сам дневник охватывает события с 1872 по 1918 гг. Published is an excerpt from a diary of N.P. Vishnyakov (1844–1927), a Moscow Duma deputy. Nikolay Petrovich has never personally participated in the events, but was in the epicenter of the October battles between the Red and the White movements, as he and his family lived in the centre of Moscow. Those events in particular are often referred to as the beginning of the real Civil War. His diary shows us the mental state of a peaceful citizen caught as a hostage during the civil confrontation on Moscow streets. Depicted are certain peculiarities of everyday life, rumors and doubts, hopes and fears of Moscovites, as well as behavioral strategies of different social groups.Most valuable is that the author made 2–3 diary entries a day, registering the events in details. Such sources are very few in number.N.P. Vishnyakov's memoirs and epistolary heritage have never before were fully published and were marked as a unique source on the history of political, cultural and economic life in Moscow between 1873--1918.This is a part of an upcoming publication of the complete texts of N.P. Vishnyakov's epistolary heritage. Nukolay Petrovich was fully engaged into almost every political and economical process in Moscow during the times of Nicholas II. He was a deputy of the Moscow Duma from 1873 to 1917, with a short break in 1892--1897, a magistrate judge, a well-known geology scientist and ethnographer.For this publication shorten forms of toponymies and some personalized abbreviations have been deciphered. It is sometimes very difficult to follow and understand N.P. Veshnyakov’s handwriting.


1897 ◽  
Vol 29 (3) ◽  
pp. 485-549
Author(s):  
M. Gaster

More marvellous and more remarkable than the real conquests of Alexander are the stories circulated about him, and the legends which have clustered round his name and his exploits. The history of Alexander has, from a very early period, been embellished with legends and tales. They spread from nation to nation during the whole of the ancient times, and all through the Middle Ages. Many scholars have followed up the course of this dissemination of the fabulous history of Alexander. It would, therefore, be idle repetition of work admirably done by men like Zacher, Wesselofsky, Budge, and others, should I attempt it here. All interested in the legend of Alexander are familiar with those works, where also the fullest bibliographical information is to be found. I am concerned here with what may have appeared to some of these students as the bye-paths of the legend, and which, to my mind, has not received that attention which is due to it, from more than one point of view. Hitherto the histories of Alexander were divided into two categories; the first were those writings which pretended to give a true historical description of his life and adventures, to the exclusion of fabulous matter; the other included all those fabulous histories in which the true elements were smothered under a great mass of legendary matter, the chief representative of this class being the work ascribed to a certain Callisthenes. The study of the legend centred in the study of the vicissitudes to which this work of (Pseudo-) Callisthenes had been exposed, in the course of its dissemination from the East, probably from its native country, Egypt, to the countries of the West.


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