DEVELOPMENT OF A MODEL LAMP BASED ON LED MATRIX

Author(s):  
O. Yu. Kovalenko ◽  
E. M. Martynova ◽  
S. A. Mikaeva ◽  
Yu. A. Zhuravleva

The work is devoted to the development of a lamp based on an LED matrix with varying chromaticity and illumination level. The following main components are used in the work: an addressable LED matrix WS2812b 1616 LED, Arduino Nano, a TTP223 touch button, a 5V 2A power supply. The basis for the lamp is a plumbing pipe with a diameter of 50 mm and a part of a pipe with a diameter of 40 mm; for the manufacture of a prototype, a matte shade from a conventional lamp was used. The working temperature of the matrix is from –25° to + 80° Celsius. Working at temperatures below – 25°, the tape may work poorly or not execute controller commands at all. For lighting effects and, in general, for the operation of the lamp, the code was written on the Arduino, and flashed into the Arduino Nano. The proposed lamp design can be used as decorative lighting for residential buildings.

Reproduction ◽  
2000 ◽  
pp. 143-150 ◽  
Author(s):  
JM Bedford ◽  
OB Mock ◽  
SK Nagdas ◽  
VP Winfrey ◽  
GE Olson

To obtain further perspective on reproduction and particularly gamete function among so-called primitive mammals presently grouped in the Order Insectivora, we have examined the African hedgehog, Atelerix albiventris, in light of unusual features reported in shrews and moles. Atelerix proves to share many but not all of the characteristics seen in these other insectivores. The penis of Atelerix has a 'snail-like' form, but lacks the surface spines common in insectivores and a number of other mammals. Hedgehog spermatozoa display an eccentric insertion of the tail on the sperm head, and they manifest the barbs on the perforatorium that, in shrews, probably effect the initial binding of the sperm head to the zona pellucida. As a possible correlate, the structural matrix of the hedgehog acrosome comprises only two main components, as judged by immunoblotting, rather than the complex of peptides seen in the matrix of some higher mammals. The Fallopian tube of Atelerix is relatively simple; it displays only minor differences in width and in the arborized epithelium between the isthmus and ampulla, and shows no evidence of the unusual sperm crypts that characterize the isthmus or ampulla, depending on the species, in shrews and moles. In common with other insectivores, Atelerix appears to be an induced ovulator, as judged by the ovulation of some 6-8 eggs by about 23 h after injection of hCG. The dense cumulus oophorus appeared to have little matrix, in keeping with the modest dimensions of the tubal ampulla and, while it was not quite as discrete as that of soricids, it did show the same insensitivity to 0.5% (w/v) ovine or bovine hyaluronidase.


2019 ◽  
Vol 111 ◽  
pp. 04010
Author(s):  
Gyuyoung Yoon ◽  
Kyoko Sugiyama ◽  
Saya Yoshioka ◽  
Shinji Sakai

In an effort to clarify the potential use and effectiveness of direct current (DC) power supply systems and further promote their usage, this study investigates the energy saving and cost performance characteristics of such a system for a detached house equipped with roof-mounted solar photovoltaic (PV) panels. Our evaluation considered different DC-powered appliances under different energy price conditions and made projections based on present, 2030s, and 2050s scenarios. Initial cost reductions were also considered based on assumed near-future technological developments. Our case study results show that the simple payback period is likely to be shortest in cases where DC power is only used for low-voltage appliances under present price conditions, when supplying DC power to cover interior space heating under the 2030s energy price scenario, and when covering all DC-powered appliances (including water heating) under the 2050s scenario. Taken together, these results indicate that it is desirable to set the introductory targets while projecting future energy price fluctuations and anticipating the cost reductions that will result from ongoing technological developments.


2002 ◽  
Vol 16 (20n22) ◽  
pp. 3405-3405
Author(s):  
P. J. M. VAN BENTUM ◽  
J. C. MAAN ◽  
J. W. M. VAN OS ◽  
A. P. M. KENTGENS

As an exploratory study for NMR experiments in the future 20 MW Nijmegen high field magnet laboratory, the possibilities of field stabilization and field gradient compensation in a 25 T hybrid magnet in the present installation were evaluated. High frequency field fluctuations from the power supply can be compensated to better than 10-3 ppm in the 10 Hz-10 kHz range using a computer controlled feedback system. Field mapping by 2H magnetic resonance using a homebuilt device not only showed that there are substantial axial but also strong radial field gradients. It can be shown that for any cylindrical multicoil Bitter magnet the main components of these gradients can be compensated with simple ferromagnetic inserts. In this way we achieved a linewidth under 5 ppm in 1 mm3 without further shimming or optimization. The low frequency drift of the field due to instabilities of the present power supply and the effects of temperature fluctuations of the coil are determined by simultaneous acquisition of an in-situ deuterium reference signal together with the signal of interest. This allows for a full compensation of the field fluctuations by deconvolution techniques. We will report preliminary NMR results on solid27 Al samples in fields up to 25 T.


2010 ◽  
Vol 4 (6) ◽  
pp. 542-551 ◽  
Author(s):  
Tohru Ishida ◽  
◽  
Yoshimi Takeuchi

This study deals with the development of a mechanism which can autonomously and automatically control the discharge gap for achieving electrical discharge machining (EDM) in an almost isolated space. This is so that a microrobot equipped with the mechanism can create a long, complicated curved hole, a hole that could not be formed by conventional machining methods. Holes formed by conventional machining methods are generally straight, so pipelines built in a variety of mechanical apparatuses consist of straight or polygonal lines. Such dearth of variety in realizable hole shapes can sometimes cause fundamental problems. A typical example of the problems appears in the design and production of water channels, i.e., pipelines built in metal molds to achieve appropriate thermal controls in molding processes. Specifically, the low variety of hole shapes prevents the shapes and positions of water channels from being optimized for the best thermal control in molding. Therefore, the development of a new method for machining curved holes has been needed. To meet this needed, we have conceived a method of machining curved holes by employing a microrobot that can perform EDM. A long, complicated curved hole can be created by making the microrobot perform stable EDM while moving along a long, complicated, curved trajectory in a workpiece. In order to realize this concept, the microrobot must have the capability to autonomously and automatically control the discharge gap in such an almost isolated space as the bottom or end of a curved hole. Accordingly, this study devises a new mechanism to give the microrobot this capability, and it calls the mechanism the “automatic discharge gap controller” (ADGC). The main components of ADGC are an electrode and power supply for EDM and a bidirectional actuator in which shape memory alloy (SMA) is employed. The results obtained from the experiments using a prototype of the ADGC prove that the ADGC has the capability of performing stable EDM by controlling the discharge gap autonomously and automatically without any other actuators.


Author(s):  
Ihor Yatsenko ◽  
◽  
Volodymyr Kaskiv ◽  
Oleksandr Chechuha ◽  
◽  
...  

The thesis presents methodological approaches to diagnosis and restructuring the system of economic regulation business processes of construction organizations, aimed to stabilize their economic development. It was suggested a new definition of the term «business process of construction organization» and performed the decomposition of business processes in construction. It was determined main components of management of construction organizations, which allow improving their structure and consolidating all processes with strategically goals. It was improved the outsourcing mechanism to optimize financial processes and flows of subcontract construction organizations under condition of constrains on resources and deadlines on the construction of residential buildings designed and optimal measures of pre-payment. A new approach for the management of financial flows by means of fuzzy sets. Found out typical failings in administration of business processes in «effective» and «ineffective» of construction organizations to restructure their activity. It was conducted determinative factor analysis of profitability of operating activity in construction industry and worked out measures to improve the situation. Worked out the quantitative characteristics of key business processes, which allow defining the size of the advance payment of a customer to optimal level.


Author(s):  
Елена Васильевна Бутенко

Введение. Проведено лингвостилистическое исследование паремиологических трансформаций в кинотексте и рассмотрены возможности эквивалентной передачи трансформа в языке перевода. Актуальность исследования обусловлена широкой употребительностью пословичных единиц в художественном языке, в частности в кинодискурсе. Встраиваясь в матрицу кинодиалога, они становятся основой для последующих преобразований в высказываниях персонажей, создавая своей окказиональностью значительный экспрессивный потенциал. Цель. Поскольку свидетельством эффективной трансформации является узнаваемость исходной пословицы в трансформе, целью исследования стало выявление лингвостилистических средств, способствующих узнаванию, декодированию и адекватному зрительскому восприятию трансформа в языке принимающей культуры. Материал и методы. Материалом исследования послужили пословичные трансформы в высказываниях персонажей анимационного фильма “The Lion King. Hakuna Matata” («Король Лев. Акуна Матата»). Проводимое исследование имело теоретико-эмпирический характер, при котором анализ материала осуществлялся посредством структурного и описательного методов, позволяющих установить определенные лингвистические закономерности паремиологических трансформаций. Результаты и обсуждение. Анализируемый авторский трансформ является по сути сентенцией, афористическим, то есть лаконичным и поучительным, изречением. Сентенция воспроизводит типические черты народной пословицы: дидактичность, переосмысленность, имплицитность. Оживляя традиционную форму паремиологической единицы, она сохраняет семантико-стилистическое тождество с прецедентным текстом. Наряду со смысловой тождественностью с исходной пословицей, трансформ-сентенция демонстрирует и синтаксическую схожесть, при этом бесшовно включаясь в контекст диалога. Констатируемые проявления трансформационного процесса закономерны, так как трансформ создается по пословичным алгоритмам, что обеспечивает его соотносимость с исходной пословицей. Их имплицитная общность предопределяет и в некоторой степени ограничивает вариативность лексического содержания, а также синтаксической структуры трансформа. Это дедуктивное положение может стать небольшим научным вкладом в лингвостилистические исследования в области паремиологической трансформации. Оно эффективно работает в художественном языке, где обеспечивающая адекватное восприятие логическая структура традиционной пословицы способна производить дериваты, выделяющиеся своеобразием формы. Проводимым лингвостилистическим исследованием изучаются людические (игровые) ресурсы полисемии, применяемые в трансформе, и анализируются изыскиваемые возможности перевода каламбурных речений. Внесение модифицированной пословичной единицы – сентенции – в структуру кинодиалога рассматривается как прием стилистической цитации, функциональная ценность которой подтверждается уместностью употребления в определенной ситуации общения. Статус интертекстуального знака, приобретаемый сентенцией в высказывании персонажа, наделяет ее особой значимостью и способствует возникновению направленных ассоциаций, служит средством усиления аргументации и выражения оценки. Заключение. Трансформация паремиологических единиц – это результат художественно-обработанного прецедентного текста, где структурно-семантическая устойчивость обновляется окказиональным, но идентичным по содержанию выражением. Таким образом, модифицированные паремии не воспринимаются как безжизненные фольклорные штампы, они являются актуальными составляющими речевого узуса. Поскольку краткость входит одним из основных компонентов в понятие «пословица», ее семантико-стилистическому деривату также свойственны смысловая емкость и синтаксическая сжатость. Подобные формы способствуют созданию языковой компрессии, необходимой в субтитровании, наиболее востребованном виде киноперевода. Этот фактор подтверждает как практическую значимость исследования, так и его актуальность для киноиндустрии. Introduction. The linguistic research analyzes paremiological transformations in the film text and stud-ies the possibilities of their equivalent translation in the host culture. The relevance of the study is due to the wide use of proverbial units in the artistic language and namely in film discourse. Embedded in the matrix of the film dialogue, they become a basis for subsequent transformations in characters’ speech, creating a significant expressive potential because of their occasional character. Aim and objectives. Since the recognition of the original proverb in the modified version is the proof of an effective transformation, the aim of the study is to identify the linguistic means that contribute to recognition, decoding and adequate perception of the transform in the language of the host culture. Material and methods. The research is based on the proverbial transforms in the characters’ utterances of the animated film “The Lion King. Hakuna Matata”. Being of a theoretical-empirical nature, the lingua-stylistic study required the use of the structural and descriptive methods, which made it possible to pinpoint certain linguistic regularities of paremiological transformations. Results and discussion. The analyzed author’s transform is actually an epigram – an anaphoristic statement, concise and instructive. It reproduces the typical features of a proverb: didacticity, transfig-uration, implication. Renewing the traditional form of the paremiological unit, the epigram retains the semantic-stylistic identity with the precedent text. Alongside the semantic identity with the proverbial prototype, the transform also demonstrates the syntactic similarity, while seamlessly integrating into the context of the dialogue. The stated manifestations of the transformation process are explicable, since the transform is created according to proverbial algorithms, which ensure its correlation with the original proverb. The implicit mutuality predetermines and limits, to a certan extent, the variability of the lexical content and the syn-tactic pattern of a transform. This deductive reasoning can be a scientific contribution to the lingua-stylistic research in the sphere of paremiological transformation. It works efficiently in the artistic lan-guage, where, ensuring an adequate perception, the logical framework of a traditional proverb pro-duces derivatives, various and expressive in form. The lingua-stylistic research explores the game art resources of polysemy used in the transformation unit, and analyzes the exploited possibilities of translating a pun. The introduction of a modified proverbial unit — an epigram, for example – into the structure of a film dialogue is viewed as a stylistic citation technique, the functional value of which is confirmed by the appropriateness of its use in a certain situation of communication. The status of an intertextual unit, acquired by a transform in a character’s utterance, endows it with special significance and promotes the emergence of directed associations, serves as a means of strengthening argumentation and assess-ment. Conclusion. The transformation of paremias is the outcome of an artistically processed precedent text, where the structural and semantic fixity is revived by an expression, identical in content, but peculiar in form. Thus modified paremias are not perceived as lifeless folklore cliches, but real live compo-nents of speech use. Since brevity is one of the main components in the concept of «a proverb», its derivative is also char-acterized by semantic capacity and syntactic conciseness. Such models contribute to the creation of language compression required in subtitling, the most popular kind of film translation. This factor con-firms both the practical significance of the study and its relevance for the film industry.


2018 ◽  
Vol 16 (1) ◽  
pp. 437-444 ◽  
Author(s):  
Elena A. Kandrashina ◽  
Anna S. Zotova

The creation of new management methods that guarantee sustainable economic development in the long-term perspective is impossible without the overall analysis of the existing methods and system elements of enterprise management. Such analysis should take into account the influence of external and internal environment. Most of Russian organizations functioning at the market are characterized by low degree of flexibility and adaptability to the changes at the market and by traditional ways of management which do not correspond to the modern market conditions and it does not allow them to develop perfectly. The article defines the main components of the enterprise sustainable development and offers the matrix model of changes assessment on the basis of sustainable development criterion.Thus, the general aim of the article is to form theoretical and methodical basis for management mechanism aimed at sustainable development of the enterprise, the mechanism that meets the current demands and global trends of economy development. The main methodical instrument used for the enterprise position assessment is the system of matrix coordinates. The choice of the matrix form is due to the fact that matrices are the main tool for strategic positioning of enterprises and the choice of strategic solutions in conditions of multiplicity of parameters through which the expected and actually obtained results are formalized and measured.


2019 ◽  
Vol 4 (2) ◽  
pp. 129-137
Author(s):  
Kerista Tarigan ◽  
Timbangen Sembiring Timbangen ◽  
Widya Simamora ◽  
Berto Simamora ◽  
Robin Simatupang

Adjustable power supply assembly and training have been conducted to private YPK Berastagi high school students in Berastagi District, Karo. This activity was carried out in partnership with the University of North Sumatra in the form of community service. The purpose of the training and making of this study program is to improve the teaching activities of the theory and practice of the field of electronic physics to partners. The training and making of the study program were carried out using the theory understanding method, assembling and testing it. The main components and functions used are the 220V 5A step down transformer, 5A rectifier diodes as dc rectifiers, 4700 µF electrolyte capacitors as filters, and IC LM 317 regulators as voltage regulators and are equipped with current amplifiers, 2SA 73 transistors and 2SC 41 Based on test and analysis data obtained by students (i), the output voltage can be adjusted from 1.27 - 24.62 volts with a maximum current of 3A. While the ripple voltage, Vr pp = 0.1 Volt. obtained mV. Based on the PS test results of assemblies against the burden of motorcycle lights, 40 Watt works well. Based on these results, the PS can be used.


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