scholarly journals Laser Projection Positioning Improving at a Machine- Building Manufacturing Enterprise Method

2021 ◽  
Vol 2096 (1) ◽  
pp. 012152
Author(s):  
T N Kruglova ◽  
D A Lukyanchikova ◽  
G A Shmelev
Keyword(s):  
Main Product ◽  
Vision System ◽  
Dimensional Accuracy ◽  
Machine Building ◽  
Manufacturing Enterprise ◽  
Projection System ◽  
System Adaptation ◽  
Two Stages ◽  
The Cost ◽  
Formal Statement

Abstract The goal of this work is to research a possibility of laser projection system adaptation to a machine-building manufacturing enterprise. A model example of the use of a computer vision system in production is the task of reducing the labor intensity of installing welded elements on a product, reducing the production time, and reducing the cost of work. A formal statement of the problem is given - to use a laser projection system in the conditions of assembly and welding production for positioning welded elements on the main product with respect to dimensional accuracy. For experimental research, a section of a machine-building production enterprise with a pre-defective product and welded elements was used. The research took place in two stages. As a result of the research, the results were obtained, confirming the efficiency of the method.

PROVIDE THE REQUIRED SURFACE ROUGHNESS PRODUCTS FROM METALLOPOLYMERS FILLED WITH ALUMINUM AT PROCESSING GRINDING

2016 ◽  
Vol 2 (1) ◽  
pp. 162-169 ◽  
Author(s):  
Чепчуров ◽  
Mikhail Chepchurov ◽  
Любимый ◽  
Nikolay Lyubimyy ◽  
Аверченкова ◽  
...  
Keyword(s):  
Surface Roughness ◽  
Aluminum Matrix ◽  
Dimensional Accuracy ◽  
Machine Building ◽  
Depth Of Cut ◽  
Processing Modes ◽  
Material Forming ◽  
The Cost ◽  
Found Model ◽  
Metal Polymer

Currently, machine-building enterprises are increasingly using new composite materials for the production of parts, accessories and repair. One such material is a metallopolymeric composite structure with an aluminum filler. In general, it is an epoxy-dienoic filled with an aluminum matrix excipient. Owing to its flow properties in the uncured state, and hardness and heat resistance when cured, the material is increasingly used in the production. Previous studies have shown the use of metal-polymer material as the material forming the mold parts, as this significantly reduces the cost of equipment for molding plastics. Unlike steel machining modes metallopolymers insufficiently studied, because the material is new, and as yet only finds its field of application. However, in the manufacture of it forming tooling molds required to appoint such process steps and processing modes, which will provide the required dimensional accuracy and surface roughness detail. For a given parameter surface roughness of a metallopolymeric in the processing of grinding was found model of the surface roughness of the parameter rate table movement and the depth of cut.

On strategy for the development of multifunctional social infrastructure complexes in the ‘Smart City’ paradigm

2020 ◽  
Vol 26 (7) ◽  
pp. 1469-1495
Author(s):  
A.L. Sabinina ◽  
V.V. Sokolovskii ◽  
N.A. Shul'zhenko ◽  
N.A. Sychova
Keyword(s):  
Smart City ◽  
Housing Demand ◽  
Infrastructure Development ◽  
Social Infrastructure ◽  
Strategic Decisions ◽  
Demand And Supply ◽  
Living Space ◽  
Two Stages ◽  
The Cost ◽  
Comprehensive Study

Subject. The article describes the findings of the authors of fundamental strategic decisions on the formation of multifunctional urban complexes, using the housing demand and supply criterion. Objectives. We undertake a comprehensive study aimed at perfecting the methodology for evaluating the options for city infrastructure development at two stages, i.e. strategic, when general targets of feasible commissioning are determined, and current, when parameters of demand for facilities are taken into account. Methods. The study employs methods of expert survey, statistical data processing, predictive and investigative analysis. Results. We explored factors of creating amenities and comfort in residential construction areas, developed an algorithm to calculate the volume of new living space commissioning on the basis of evaluating demands in the Smart City paradigm. Conclusions. The study shows the cost increase depending on the built-up area, number of floors, and the balance between the type of capacity and the number of residents in the quarter (linear relationship).

scholarly journals APPLICATION OF LEARNING REINFORCEMENT METHOD IN ROBOTIZED AND AUTOMATED FORESTRY SYSTEMS

2020 ◽  
Vol 10 (1) ◽  
pp. 256-265
Author(s):  
Andrey Tolstyh ◽  
D Stupnikov ◽  
Sergey Malyukov ◽  
Aleksandr Luk'yanov ◽  
Yuriy Lunev
Keyword(s):  
Physical Environment ◽  
Learning Algorithm ◽  
Back Propagation ◽  
Industrial Robots ◽  
Environment Model ◽  
Random Position ◽  
Learning Reinforcement ◽  
The Stability ◽  
Two Stages ◽  
The Cost

Abstract Currently, most large enterprises are actively using industrial robots and other automated solutions. This allows a significant increase in productivity and quality of work performed. This article gave a brief overview of modern industrial robots, their operating principle, basic components and systems. A reinforcement learning algorithm was developed and tested. The task of constructing a learning algorithm with reinforcement was divided into two stages: modeling the environment and description and optimization of the cost function. Since industrial robotic systems operate in the real world, the environment model should reflect basic physical laws. Therefore, the pyBullet library of the physical environment was chosen as the physical environment for testing. After modeling the manipulator in the selected physical medium, it was given the trivial task of touching a given object with the capture of the manipulator. An artificial neural network was used as an agent interacting with the environment. The inputs were the coordinates of the object and the existing angles of rotation of the articulated joints of the robot. Outputs - angle of rotation of joints at this step. This network was trained using the back propagation method, Adam modification. The system was trained for about 12 hours. Success is achieved in 95% of cases when testing the stability of the system (random position of the cylinder). In future, it is planned to test the obtained models on bench samples

scholarly journals Bad Debt and Cost Efficiency in Vietnamese Commercial Banks

2015 ◽  
Vol 22 (1) ◽  
pp. 125-140
Author(s):  
Vinh Nguyen Thi Hong
Keyword(s):  
Data Envelopment Analysis ◽  
Cost Efficiency ◽  
Commercial Banks ◽  
Direct Relationship ◽  
Data Envelopment ◽  
Dea Method ◽  
Two Stages ◽  
The Cost ◽  
The Relationship ◽  
Bad Debt

The paper aims at exploring the relationship between bad debt and cost efficiency in Vietnamese commercial banks in the years 2007 – 2013. The research includes two stages: (i) Measuring the cost efficiency of banks by non-parameter Data Envelopment Analysis (DEA) method suggested by Coelli (2005); and (ii) Applying the Tobit model to identify two-way effects of bad debt and bank cost efficiency. The results show that the cost efficiency in Vietnamese commercial banks is 52.6% and there exists a direct relationship between bad debt and cost efficiency.

Investigation of the Cost of Future Naval Amphibious Capability

2015 ◽  
Author(s):  
Andrew J. Jones ◽  
Rob Armstrong
Keyword(s):  
Task Group ◽  
Second Stage ◽  
The Creation ◽  
Two Stages ◽  
Vessel Impact ◽  
The Cost ◽  
The Impact

Through the creation of a large number of concept designs, the cost and vessel impact of deploying and supporting amphibious operations has been investigated. The investigation has looked at capabilities such as the transportation and delivery of vehicles, landing craft, aviation and embarked troops in a number of platform types such as LPDs, LHDs and Ro-Ros. A series of trends describing the costs of the capability have been investigated to estimate the cost of individual capabilities within a design. Over the timeframe of the study, vessel manning is predicted to change and a method of predicting the crew requirement has been developed to investigate the impact of reduced manning on amphibious platform designs. This is the first of two stages of work; in the second stage the requirements for a task group will be investigated to determine the best way to deploy capability at a fleet level.

Experimental Investigation of Microfluidic Feature Manufacturing by Digital Light Processing Stereolithography

2020 ◽  
Author(s):  
Lara Rebaioli ◽  
Irene Fassi
Keyword(s):  
Process Parameters ◽  
Low Cost ◽  
Dimensional Accuracy ◽  
Machine Building ◽  
Single Step ◽  
Main Process ◽  
Single Chip ◽  
Digital Light Processing ◽  
And Performance ◽  
User Friendly

Abstract Lab on Chips (LOCs) are devices, mostly based on microfluidics, that allow to perform one or several chemical, biochemical or biological analysis in a miniaturized format on a single chip. The Additive Manufacturing processes, and in particular the Digital Light Processing stereolithography (DLP-SLA), could quickly produce a complete LOC with high resolution 3D features in a single step, i.e. without the need for assembly processes, and using low cost and user-friendly desktop machines. However, the potential of DLP-SLA to produce non-planar channels or channels with complex sections has not been fully investigated yet. This study proposes a benchmark artifact (including also some channels with their axis lying in a plane parallel to the machine building platform) aiming at assessing the capability and performance of DLP-SLA for manufacturing microfeatures for microfluidic devices. A proper experimental campaign was performed to evaluate the effect of the main process parameters (namely, layer thickness and exposure time) on the process performance. The results pointed out that both the process parameters influence the quality and dimensional accuracy of the analyzed features.

Student Microscopes, A View from Down in the Trenches

2000 ◽  
Vol 6 (S2) ◽  
pp. 1172-1173
Author(s):  
S. P. Newberry
Keyword(s):  
Teacher Training ◽  
Grade Level ◽  
High Technology ◽  
Public And Private ◽  
Projection System ◽  
The Arts ◽  
The One ◽  
The Cost

The use of microscopes in education has proved be a powerful tool in grades K through 12 for catching the student's interest in the sciences, the humanities and the arts. While the equipment and the approach varies with the grade level, the questions of availability, teacher training and cost are each important to obtaining full and successful use of microscopes in the classroom. The one item which is beyond the control of the school is the high cost of appropriate quality microscopes. A projection system capable of showing bacteria should be available to the teacher at all times and a number of microscopes which the students can use themselves should also be present Because of the cost, many schools, both public and private, have only one microscope room or share one set of microscopes for the entire school. The result is a study of the tool rather than using the tool to better appreciate history, ecology, high technology, medicine, and so forth.

scholarly journals Technology Adoption under Uncertainty: Take-Up and Subsequent Investment in Zambia

2020 ◽  
Vol 102 (3) ◽  
pp. 617-632 ◽  
Author(s):  
Paulina Oliva ◽  
B. Kelsey Jack ◽  
Samuel Bell ◽  
Elizabeth Mettetal ◽  
Christopher Severen
Keyword(s):  
Cost Effectiveness ◽  
Technology Adoption ◽  
Tree Species ◽  
New Technology ◽  
New Information ◽  
Tree Survival ◽  
Two Stages ◽  
The Cost ◽  
On Farm ◽  
Multiple Stages

Technology adoption often requires multiple stages of investment. As new information emerges, agents may abandon a technology that was profitable in expectation. We use a field experiment to vary the payoffs at two stages of investment in a new technology: a tree species that provides on-farm fertilizer benefits. Farmer decisions identify the information about profitability that arrives between the take-up and follow-through stages. Results show that this form of uncertainty increases take-up but lowers average tree survival, decreasing the cost-effectiveness of take-up subsidies. Thus, uncertainty offers another explanation for why even costly technologies may go unused or be abandoned.

GREEN GDP INDICATOR: APPLICATION IN A BRAZILIAN FOUNDRY INDUSTRY (2008-2016)

2020 ◽  
Vol 12 (1) ◽  
pp. 41
Author(s):  
Ronaldo Leão Miranda ◽  
Gilberto Friedenreich Dos Santos
Keyword(s):  
Water Resources ◽  
Natural Resources ◽  
Environmental Degradation ◽  
Industrial Sector ◽  
Projection System ◽  
Ex Post ◽  
Green Gdp ◽  
Ex Post Facto ◽  
The Cost ◽  
Ex Post Facto Study

The objective is to calculate the value of the green industrial PIB of a foundry in the territory of Santa Catarina and to contextualize its importance as a new methodological tool. To legitimize the objective of this study, the green GDP equation is equal to the Gross Sales Revenue (Industrial GDP) - (Depletion of Water Resources + Cost of Environmental Degradation). In this context, the depletion of natural resources corresponds to the total value of the extraction of water resources, and the cost of sectoral environmental degradation is given through the proxies of the methodology of the Industrial Pollution Projection System (IPPS) applied directly to the industrial product sector. estimate of the cost of the industrial sector studied here. Methodologically, it is an exploratory, descriptive, explanatory, bibliographic, documentary and ex post facto study. As a result, the green GDP of the foundry was lower than the industrial GDP in all the surveyed years. It is noticed that the industrial economic activity of the foundry, within these parameters of analysis, signals a loss of future sustainability, taking into account the years investigated. Therefore, in order for this particular industry to reverse this scenario, investments in technologies are necessary, in order to minimize the consumption of natural resources and consequently maximize its green GDP.

scholarly journals Governança Corporativa e Velocidade de Incorporação de Informações: Lead-Lag entre o IGC e o IBrX

2012 ◽  
Vol 10 (1) ◽  
pp. 149
Author(s):  
José Carneiro da Cunha Oliveira Neto ◽  
Otávio Ribeiro de Medeiros ◽  
Thiago Bergmann de Queiroz
Keyword(s):  
Corporate Governance ◽  
Causality Test ◽  
Market Prices ◽  
Vector Error Correction ◽  
Vector Error ◽  
New Information ◽  
Equilibrium Relationship ◽  
Intraday Data ◽  
Two Stages ◽  
The Cost

Based on intraday data with a frequency of 15 minutes, the present study investigates the relationship between the high corporate governance market (IGC) and the traditional market (IBrX). The hypothesis tested is that a higher level of corporate governance reduces the cost associated to incorporating new information to asset prices, and so firms with higher governance incorporate information faster. The co-integration relationship between the time series was tested using the Engle-Granger method in two stages. The vector error correction model (VECM) and the Granger causality test do not permit the rejection of the hypothesis of faster incorporation of information for the high governance market prices. To estimate the VECM we used a bivariate GARCH BEKK model. The results suggest that the IGC finds its equilibrium price more rapidly and that the IBrX converges to the equilibrium relationship determined by the IGC.

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