scholarly journals Synthesis of a ten-link tooth-lever differential roller transmission mechanism

2021 ◽  
Vol 304 ◽  
pp. 02010
Author(s):  
Abdusalam Abdukarimov ◽  
Sanjarbek Madaminov ◽  
Asrorbek Abdullajonov
Keyword(s):  
Scientific Research ◽  
Transmission Mechanism ◽  
Dynamic Synthesis ◽  
Transmission Mechanisms ◽  
Analytical Review ◽  
Line Passing ◽  
Roller Machine ◽  
Differential Transmission ◽  
Center Distance ◽  
Variable Center

This article deals with the synthesis of a ten-link tooth-lever differential transmission mechanism. The article contains an analytical review of modern scientific research on the synthesis of tooth-lever differential transmission mechanisms of roller machines with a variable center distance of the working shafts; a method for the synthesis of toothlever differential transmission mechanisms of roller machines with a variable center distance of the working shafts described on the example of a ten-link tooth-lever differential transmission mechanism; the conditions for the synthesis of the mechanism given and substantiated when this mechanism is used in a roller machine; one of its working shafts has the ability to rotate about its own axis, and the second working shaft, in addition to rotation about its own axis, has the ability to move relative to the first working shaft along a line passing through the center the axes of rotation of both working shafts; the geometric synthesis of the tooth and lever contours of the mechanism, the dynamic synthesis of the mechanism, taking into account the angles of pressure between the lever link of the lever contour of the mechanism, which allows us to determine the optimal working position of the mechanism where the angles of pressure are within acceptable limits; the graphs of changes in the angles of pressure between the links of the lever contour of the mechanism, plotted depending on its position.

scholarly journals Dynamic analysis of a ten-link tooth-lever differential transmission

2021 ◽  
Vol 939 (1) ◽  
pp. 012024
Author(s):  
A Abdukarimov ◽  
I Saidakulov
Keyword(s):  
High Speed ◽  
Reaction Force ◽  
Transmission Mechanism ◽  
Force Analysis ◽  
Axis Of Rotation ◽  
Processed Material ◽  
Differential Transmission ◽  
External Forces ◽  
Force Calculation ◽  
Force Characteristics

Abstract This article discusses the dynamics of a ten-link tooth-lever differential transmission mechanism. The force analysis of the transmission mechanism is given in order to find the dependence for determining the reaction in kinematic pairs and the balancing moment of the pair of forces and to show some features of the tooth-lever transmission mechanism. The force calculation was carried out taking into account the accelerated movement of links since their acceleration in modern high-speed machines is very significant. To obtain a more accurate concept of the external forces and moments loading the transmission mechanism in the accelerated movement of the links, the dynamics of the transient process of roller technological machines was considered. Cases of feeding the processed material were considered both from the side of the intermediate gears and from the side opposite to the parasitic gears. Dependencies were obtained to determine the force characteristics of this mechanism. Cases of pressure unloading and overloading on the processed material from the side of the free shaft, depending on the location of the transmission mechanism are shown. The dependence of the reaction force of intermediate gears on their own axes of rotation on the angle between the levers is shown. With an increase in the angle between the levers, the reaction of the intermediate gears on the axis of rotation increases.

scholarly journals An Empirical Analysis of the Monetary Transmission Mechanism of Developing Economies: Evidence from Ghana

2018 ◽  
Vol 10 (4) ◽  
pp. 72
Author(s):  
Felix S. Nyumuah
Keyword(s):  
Developing Economies ◽  
Transmission Mechanism ◽  
Monetary Transmission ◽  
Clear Understanding ◽  
Monetary Transmission Mechanism ◽  
Developed Economies ◽  
Transmission Mechanisms ◽  
Long Run ◽  
Short Run ◽  
The Interest Rate

Policymakers need a clear understanding of their monetary transmission mechanisms for effective implementation of monetary policy. The aim of this study is to carry out an econometric analysis of the channels of monetary transmission mechanism in less developed economies so as to determine their effectiveness. The study uses Ghana macroeconomic data and finds the money supply channel to be the strongest in the long run while the exchange rate channel seems the strongest in transmitting monetary impulses in the short run. The interest rate and the bank credit to private sector channels emerge as very weak channels of monetary transmission.

A design approach for multi-configuration hybrid transmission mechanisms

2020 ◽  
Vol 234 (12) ◽  
pp. 2744-2758
Author(s):  
Yan-song Chen ◽  
I-Ming Chen ◽  
Tyng Liu
Keyword(s):  
Internal Combustion Engine ◽  
Combustion Engine ◽  
Internal Combustion ◽  
Transmission Mechanism ◽  
Design Approach ◽  
Transmission Mechanisms ◽  
Power Split ◽  
Hybrid Transmission ◽  
Split Architecture ◽  
Multiple Configurations

Several hybrid architectures have been widely used in hybrid electric vehicles. For example, power-split architecture brings seamless operation, while parallel architecture makes the internal combustion engine directly drive the wheel. To combine the advantages of various architectures, this study aims to develop a design approach to create a transmission mechanism that has multiple configurations and uses these configurations to achieve several hybrid architectures. First, this study standardized hybrid transmission mechanisms using the Function Power Graph; this powerful and intuitive tool inspired several elements and an element layout for the new mechanisms. Then, several configurations with up to five elements were enumerated and organized into the databases. Next, the mechanisms with multiple configurations and a limited number of clutching units (clutches or brakes) were evaluated, 10 of which were identified as the best group that provided five parallel configurations, two 2-motor electric vehicle configurations, and a power-split configuration. At the end of this paper, a novel hybrid transmission mechanism was developed as a demonstration. It provides higher power and torque at the output but there is no need to use the larger internal combustion engine or motor-generators. This mechanism also enables the internal combustion engine to drive in overdrive parallel architectures to avoid the loss in energy conversion when the power-split architecture is not required. As a result, after a designer specifies the desired hybrid configurations, follows the procedure, and uses the configuration databases built in this study, a novel hybrid transmission mechanism will be created.

Are Asian Business Cycles Different?

2013 ◽  
Vol 12 (3) ◽  
pp. 94-113 ◽  
Author(s):  
Yongseung Jung ◽  
Soyoung Kim ◽  
Doo Yong Yang ◽  
Tack Yun
Keyword(s):  
Latin America ◽  
Business Cycles ◽  
Durable Goods ◽  
Emerging Economy ◽  
Transmission Mechanism ◽  
Transmission Mechanisms ◽  
Net Exports ◽  
Standard Models ◽  
Key Features

This paper studies the unusual features of emerging economy business cycles in Asia. When we assess whether approaches from the previous literature can explain Asian business cycles, we conclude that standard models based on permanent growth shocks do not replicate key features of Asian business cycles. The evidence suggests that different transmission mechanisms explain the connections between consumption, net exports, and export or import in Latin America and Asia. For evidence of a special transmission mechanism, we study durable goods business cycles in Asia (Korea), noting that strong pro-cyclical durable goods consumption may be explained by the export-income channel coupled with market laddering by which firms have expanded the variety and quality of their durable goods production.

Variable center to center distance of nucleosomes in chromatin

1982 ◽  
Vol 154 (3) ◽  
pp. 515-523 ◽  
Author(s):  
Ariel Prunell ◽  
Roger D. Kornberg
Keyword(s):  
Center Distance ◽  
Variable Center

scholarly journals New transmission mechanism for the sustainable and humanistic development of human capital: Demand for the ‘rigidity turn’

2021 ◽  
Vol 21 (3) ◽  
pp. 433-443
Author(s):  
S. A. Kravchenko
Keyword(s):  
Human Capital ◽  
Social Order ◽  
Social Epidemiology ◽  
Transmission Mechanism ◽  
Self Reflection ◽  
Social Actors ◽  
Transmission Mechanisms ◽  
The 1960S ◽  
Capital Development ◽  
Nature And Society

The author considers the becoming complex reality as developing nonlinearly and demanding new transmission mechanisms for the formation of human capital and also factors that contribute to changes in these realities: self-reflection of both nature and society; social gaps and traumas as becoming a norm; backward and forward trends; the increasing number of bifurcation points; ambivalences; side effects of digital innovations; consequences of global pandemics, etc. - all of them facilitate changes in the mechanism for the development of human capital. In the 1960s, G. Becker and T. Schultz introduced the term human capital to start the studies of factors that make mechanisms of its formation more complex. Since then, many theories have been introduced to explain challenges to human capital, because various transmission mechanisms of influencing human capital have been formed as culturally and politically determined. Today, there are two challenges affecting the nature of human capital: digitalization and the global covid-19 pandemic create new requirements for human capital and change the transmission mechanism of its formation. However, the dominant pragmatic and formal-rational approaches to human capital distort its humanistic and sustainable components. The author insists on the need to create a new transmission mechanism for the sustainable and humanistic human capital development, which would include social-cultural and value elements, humanized digital technologies, bioethics and social epidemiology - in order to help social actors to function more effectively under the global complexity and nonlinear development. The author outlines the theory of the rigidity turn as a social discourse, which aims at studying long-lived phenomena of social order and developing intellectual and practical foundations of the sustainable and humanistic formation of the human capital.

scholarly journals Applications of Microbeams Produced by Tapered Glass Capillary Optics

2020 ◽  
Vol 4 (2) ◽  
pp. 22 ◽  
Author(s):  
Tokihiro Ikeda
Keyword(s):  
Ion Beam ◽  
Transmission Mechanism ◽  
Glass Capillary ◽  
Self Organized ◽  
Transmission Mechanisms ◽  
Beam Analysis ◽  
Capillary Optics ◽  
Cell Surgery ◽  
First Time ◽  
Experimental And Theoretical Studies

Production of ion microbeams using tapered glass capillary optics was introduced more than 10 years ago. This technique has drawn attention in terms of both its peculiar transmission features and application to ion beam analysis. The transmission mechanism based on a self-organized charge-up process for keV-energy ions was observed for the first time in an experiment using a multitude of nanometer-sized capillaries in a polymer foil. The same mechanism can be seen for the transmission of keV ions through a single tapered glass capillary. The transmission experiments with keV ions showed a delayed transmission, focusing effects, guiding effects, and formation of microbeams. Experiments using MeV-energy ions always aim at applications of microbeam irradiation for material analysis, surface modification, cell surgery, and so on. In this article, the applications of MeV ion microbeams, including the fabrication method of the glass capillary, are reviewed, as well as the experimental and theoretical studies for the transmission mechanisms of keV/MeV ions.

Research on the psychological root and transmission mechanism of rumours in major epidemics based on the perspective of psychoanalysis

2021 ◽  
Vol 4 (2) ◽  
pp. 170-181
Author(s):  
Liu Zixiao ◽  
Pan Dandan ◽  
Ju Fei
Keyword(s):  
Depth Psychology ◽  
Projective Identification ◽  
Transmission Mechanism ◽  
Main Theme ◽  
The Unconscious ◽  
Audiovisual Media ◽  
Transmission Mechanisms ◽  
Psychoanalytic Perspective ◽  
A Current

Since the Covid-19 epidemic, many rumours have been generated under the main theme of a whole people fighting the epidemic together. From the standpoint of depth psychology, a psychoanalytic perspective has its own advantages and unique research value on the psychological roots of rumours in major epidemics and their mechanisms of transmission, which this article discusses, along with the anxiety and fear created by the life instinct, the elements of attack and projection under the death instinct, and conjectures how the role of Lacan’s postulation that the unconscious is constituted like language all play a role as main causes of a current epidemic of rumours. The transmission mechanisms of epidemic rumours are the following: the spreading of panic caused by the interruption of emotional connection, aggressive spreading of rumours caused by hostility in processes of identification, and problems in mechanisms of projective identification, and the combined effect of audiovisual media. Furthermore, the authors make specific suggestions on how to deal with rumours in major epidemics, so as to improve understanding and response to these in cases of major epidemics.

scholarly journals Symposium on the Monetary Transmission Mechanism

1995 ◽  
Vol 9 (4) ◽  
pp. 3-10 ◽  
Author(s):  
Frederic S Mishkin
Keyword(s):  
Exchange Rate ◽  
Asset Price ◽  
Transmission Mechanism ◽  
Monetary Transmission ◽  
Credit Channel ◽  
Monetary Transmission Mechanism ◽  
Transmission Mechanisms ◽  
Price Effects ◽  
Rate Effects ◽  
Monetary Transmission Mechanisms

Understanding of monetary transmission mechanisms is crucial to answering a broad range of questions. These transmission mechanisms include interest-rate effects, exchange-rate effects, other asset price effects, and the so-called credit channel. This introduction to the symposium provides an overview of the main types of monetary transmission mechanisms found in the literature and a perspective on how the papers in the symposium relate to the overall literature and to each other.

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