scholarly journals Measurement of geometric parameters of extended objects based on the four-coordinate method with a displacement

2021 ◽  
Vol 2094 (4) ◽  
pp. 042089
Author(s):  
M G Grigorev ◽  
H H Abakumov ◽  
E M Fedorov
Keyword(s):  
Surface Defects ◽  
Continuous Control ◽  
Process Data ◽  
Automatic Control Systems ◽  
Cable Industry ◽  
Ferrous Metals ◽  
Insulation Coating ◽  
Production Complex ◽  
Object Of Control

Abstract The paper states that the diameter control in the cable industry is one of the fundamental factors in the final product quality. Such control takes place under the condition that data on the diameter of the electrical insulating sheath of the electric cable will be received continuously. It is possible to evaluate the surface quality of the cable insulation coating, to track thinning, thickening, and some other local surface defects when we receive and process data on the object of control in real time. Modern production facilities are focused on resource efficiency. It means that reducing the consumption of expensive cable materials (non-ferrous metals, alloys, glass, polymers) and insulating materials (plastic compounds, PVC, rubber, etc.) will be one of the main factors in setting up a production complex. The continuous control of the diameter has the ability to provide for such a factor, and also makes it possible to automate the adjustment of the diameter as well as the thickness of the insulation coating using the meter as a part of automatic control systems.

scholarly journals Process Monitoring in Friction Stir Welding Using Convolutional Neural Networks

Metals ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 535
Author(s):  
Roman Hartl ◽  
Andreas Bachmann ◽  
Jan Bernd Habedank ◽  
Thomas Semm ◽  
Michael F. Zaeh
Keyword(s):  
Neural Networks ◽  
Friction Stir Welding ◽  
Convolutional Neural Networks ◽  
Process Monitoring ◽  
Surface Defects ◽  
Network Architectures ◽  
Process Data ◽  
Friction Stir ◽  
Measured Process

Preliminary studies have shown the superiority of convolutional neural networks (CNNs) compared to other network architectures for determining the surface quality of friction stir welds. In this paper, CNNs were employed to detect cavities inside friction stir welds by evaluating inline measured process data. The aim was to determine whether CNNs are suitable for identifying surface defects exclusively, or if the approach is transferable to internal weld defects. For this purpose, 120 welds were produced and examined by ultrasonic testing, which was the basis for labeling the data as “good” or “defective.” Different types of artificial neural network were tested for predicting the placement of the welds into the defined classes. It was found that the way of labeling the data is significant for the accuracy achievable. When the complete welds were uniformly labeled as “good” or “defective,” an accuracy of 98.5% was achieved by a CNN, which was a significant improvement compared to the state of the art. When the welds were labeled segment-wise, an accuracy of 79.2% was obtained by using a CNN, showing that a segment-wise prediction of the cavities is also possible. The results confirm that CNNs are well suited for process monitoring in friction stir welding and their application enables the identification of various defect types.

Characterization of homoepitaxial diamond films by Electron microscopy

1991 ◽  
Vol 49 ◽  
pp. 880-881
Author(s):  
D.P. Malta ◽  
S.A. Willard ◽  
R.A. Rudder ◽  
G.C. Hudson ◽  
J.B. Posthill ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Surface Defects ◽  
Substrate Surface ◽  
Diamond Films ◽  
Chemical Vapor ◽  
Polycrystalline Diamond ◽  
Large Degree ◽  
Rf Plasma ◽  
Semiconducting Diamond

Semiconducting diamond films have the potential for use as a material in which to build active electronic devices capable of operating at high temperatures or in high radiation environments. A major goal of current device-related diamond research is to achieve a high quality epitaxial film on an inexpensive, readily available, non-native substrate. One step in the process of achieving this goal is understanding the nucleation and growth processes of diamond films on diamond substrates. Electron microscopy has already proven invaluable for assessing polycrystalline diamond films grown on nonnative surfaces.The quality of the grown diamond film depends on several factors, one of which is the quality of the diamond substrate. Substrates commercially available today have often been found to have scratched surfaces resulting from the polishing process (Fig. 1a). Electron beam-induced current (EBIC) imaging shows that electrically active sub-surface defects can be present to a large degree (Fig. 1c). Growth of homoepitaxial diamond films by rf plasma-enhanced chemical vapor deposition (PECVD) has been found to planarize the scratched substrate surface (Fig. 1b).

Method and Technology for Continuous Control of Performance and Operating Quality of Automotive and Combine Machinery

2020 ◽  
Vol 14 (3) ◽  
pp. 160
Author(s):  
Ildar Gabitov ◽  
Samat Insafuddinov ◽  
Ildar Badretdinov ◽  
Viktor Pavlenko ◽  
Filyus Safin
Keyword(s):  
Continuous Control

DIAGNOSING QUALITY OF FRICTION SYSTEMS OF MECHANISMS OF DEVICES

2019 ◽  
Vol 1 (7) ◽  
pp. 10-13
Author(s):  
D. Yu. Ershov ◽  
I. N. Lukyanenko ◽  
E. E. Aman
Keyword(s):  
Surface Defects ◽  
Diagnostic Methods ◽  
Design Parameters ◽  
Diagnostic Model ◽  
Mechanical Assemblies ◽  
Local Defects ◽  
Relationship Of ◽  
The Relationship ◽  
Production And Operation

The article shows the need to develop diagnostic methods for monitoring the quality of lubrication systems, which makes it possible to study the dynamic processes of contacting elements of the friction systems of instrument mechanisms, taking into account roughness parameters, the presence of local surface defects of elements and the bearing capacity of a lubricant. In the present article, a modern diagnostic model has been developed to control the quality of the processes of production and operation of friction systems of instrument assemblies. With the help of the developed model, it becomes possible to establish the relationship of diagnostic and design parameters of the mechanical system, as well as the appearance of possible local defects and lubricant state, which characterize the quality of friction systems used in many mechanical assemblies of the mechanisms of devices. The research results are shown in the form of nomograms to assess the defects of the elements of friction mechanisms of the mechanisms of the devices.

SISTEM INFORMASI INVENTORY BARANG (SI RIANG) PADA PT SANGHIANG PERKASA

2021 ◽  
Vol 15 (4) ◽  
pp. 10-23
Author(s):  
Eka Chandra Ramdhani ◽  
Juniarti Eka Safitri ◽  
Selamat Abdurrahman Fahmi ◽  
Asep Asep
Keyword(s):  
System Analysis ◽  
System Development ◽  
Inventory System ◽  
Inventory Systems ◽  
Coding System ◽  
Process Data ◽  
Analysis And Design ◽  
Analysis System ◽  
Software Requirements Analysis

The inventory system is a system that has a very important role in a company. Inventory systems have been widely used or developed in a place with various technologies and systems. Problems at PT. Sanghiang Perkasa is due to the fact that the data has not been stored in a good file and the management and processing of inventory data is still processed in a conventional way, which has a very significant effect on the quality of the data and information produced. The main objective of this research is to produce an inventory system that is powerful and in accordance with the needs of the users associated with the inventory system. The system development method in this inventory system uses the waterfall method which consists of six stages. The stages are System Analysis and Design, software requirements analysis, system design, coding, system testing and maintenance. This system was built using the PHP programming language, DataBase MySQL. It is hoped that with the implementation of this inventory system at PT. Sanghiang Perkasa can make it easier to store and process data and information such as stock-taking data, information on incoming and outgoing goods transactions, purchase and sales return data, managing customer and supplier data to making product stock reports and assembly reports. Keywords: Information System; Inventory, Web

scholarly journals The Influence of Strategic Leadership on Building Employees’ Entrepreneurial Orientation: A Field Study at the Jordanian Public Sector

2017 ◽  
Vol 10 (6) ◽  
pp. 62
Author(s):  
Sahar Mohammad Abu Bakir
Keyword(s):  
Public Sector ◽  
Entrepreneurial Orientation ◽  
Change Agent ◽  
Strategic Leadership ◽  
Successful Implementation ◽  
Continuous Control ◽  
The Public ◽  
Governmental Organizations ◽  
The Impact

The public sector in Jordan is confronting many problems; reports show that citizens are not contented with the number and quality of current services. Consequently; persistent initiatives to uphold the sector performance took place at all levels, relying on the inventive employees and leadership to achieve the intended improvement. So this study seeks to test the impact of strategic leadership (charismatic, visionary, change agent and servant) on building entrepreneurial orientation (proactiveness, innovativeness and risk taking) in Jordanian public sector employees.A random sample was selected of 500 employees working at health, education, agriculture and other service governmental organizations. To obtain the required results multiple regression was calculated using (21) SPSS version.It was found that the charismatic, change agent, servant styles positively influence employees proaciveness, with no influence on the other two entrepreneurship dimensions. While visionary style has no significant influence on all entrepreneurship dimensions. However the public sector reform is achievable, through comprehensive strategies, successful implementation, and effective continuous control. Innovative departments need to be established and financed away from bureaucratic environments.

Optimization of Rolling Modes on the Mill 1700 of JSC "ArselorMittal Temirtau" with Aim to Increase Quality of Sheet Rolled Products

2015 ◽  
Vol 1095 ◽  
pp. 786-794
Author(s):  
A.B. Naizabekov ◽  
V.A. Talmazan ◽  
S.N. Lezhnev ◽  
E.A Panin ◽  
А.S. Erzhanov ◽  
...  
Keyword(s):  
Surface Defects ◽  
Mechanical Damage ◽  
Rolling Process ◽  
Rolled Sheet ◽  
Strip Rolling ◽  
Technological Factors ◽  
Second Stage ◽  
Sheet Surface ◽  
Cold Rolled

Used the influence of technological factors of the rolling process on the intensity of the rolling out of the defect to determine the value of deformation and the coefficient of use of the plasticity resource. Introduced the notion of residual coefficient of plasticity resource in the second stage of transformation of the defect. Found that the causes of deterioration of the quality of cold-rolled sheet can be numerous defects of mechanical origin, caused by mechanical damage of the sheet surface. Conducted an analysis of profiles rolling modes, rolled on the mill 1700. With the use of existing methods calculated DUPR on workshop modes of rolling of specified profiles with and without considering the surface defects. Carried an optimization of the modes of strip rolling with surface defects.

scholarly journals Minimal versus specialist equipment in the delivery of pulmonary rehabilitation: protocol for a non-inferiority randomised controlled trial

BMJ Open ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. e047524
Author(s):  
Claire M Nolan ◽  
Jessica A Walsh ◽  
Suhani Patel ◽  
Ruth E Barker ◽  
Oliver Polgar ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Lung Disease ◽  
Exercise Capacity ◽  
Chronic Lung Disease ◽  
Pulmonary Rehabilitation ◽  
Randomised Trial ◽  
Global Rating ◽  
Process Data ◽  
Exercise Equipment

IntroductionPulmonary rehabilitation (PR), an exercise and education programme for people with chronic lung disease, aims to improve exercise capacity, breathlessness and quality of life. Most evidence to support PR is from trials that use specialist exercise equipment, for example, treadmills (PR-gym). However, a significant proportion of programmes do not have access to specialist equipment with training completed with minimal exercise equipment (PR-min). There is a paucity of robust literature examining the efficacy of supervised, centre-based PR-min. We aim to determine whether an 8-week supervised, centre-based PR-min programme is non-inferior to a standard 8-week supervised, centre-based PR-gym programme in terms of exercise capacity and health outcomes for patients with chronic lung disease.Methods and analysisParallel, two-group, assessor-blinded and statistician-blinded, non-inferiority randomised trial. 436 participants will be randomised using minimisation at the individual level with a 1:1 allocation to PR-min (intervention) or PR-gym (control). Assessment will take place pre-PR (visit 1), post-PR (visit 2) and 12 months following visit 1 (visit 3). Exercise capacity (incremental shuttle walk test), dyspnoea (Chronic Respiratory Questionnaire (CRQ)-Dyspnoea), health-related quality of life (CRQ), frailty (Short Physical Performance Battery), muscle strength (isometric quadriceps maximum voluntary contraction), patient satisfaction (Global Rating of Change Questionnaire), health economic as well as safety and trial process data will be measured. The primary outcome is change in exercise capacity between visit 1 and visit 2. Two sample t-tests on an intention to treat basis will be used to estimate the difference in mean primary and secondary outcomes between patients randomised to PR-gym and PR-min.Ethics and disseminationLondon-Camden and Kings Cross Research Ethics Committee and Health Research Authority have approved the study (18/LO/0315). Results will be submitted for publication in peer-reviewed journals, presented at international conferences, disseminated through social media, patient and public routes and directly shared with stakeholders.Trial registration numberISRCTN16196765.

scholarly journals A Containerized Approach for Allocating Distributed Stream Queries to Fog Nodes

2021 ◽  
Author(s):  
Hamed Hasibi ◽  
Saeed Sedighian Kashi
Keyword(s):  
Fog Computing ◽  
Stream Processing ◽  
Stream Data ◽  
Process Data ◽  
Stream Query Processing ◽  
Tremendous Amount ◽  
Stream Processing Engines ◽  
Iot Devices ◽  
Distributed Stream Processing

Fog computing brings cloud capabilities closer to the Internet of Things (IoT) devices. IoT devices generate a tremendous amount of stream data towards the cloud via hierarchical fog nodes. To process data streams, many Stream Processing Engines (SPEs) have been developed. Without the fog layer, the stream query processing executes on the cloud, which forwards much traffic toward the cloud. When a hierarchical fog layer is available, a complex query can be divided into simple queries to run on fog nodes by using distributed stream processing. In this paper, we propose an approach to assign stream queries to fog nodes using container technology. We name this approach Stream Queries Placement in Fog (SQPF). Our goal is to minimize end-to-end delay to achieve a better quality of service. At first, in the emulation step, we make docker container instances from SPEs and evaluate their processing delay and throughput under different resource configurations and queries with varying input rates. Then in the placement step, we assign queries among fog nodes by using a genetic algorithm. The practical approach used in SQPF achieves a near-the-best assignment based on the lowest application deadline in real scenarios, and evaluation results are evidence of this goal.

scholarly journals KEBIJAKAN PENYELENGGARAAN PENDIDIKAN TINGGI (Studi Tentang Peran Sistem Informasi Akademik Dalam Penyelenggaran Pendidikan Tinggi Di STKIP PGRI Bangkalan)

2018 ◽  
Vol 16 (1) ◽  
pp. 16
Author(s):  
Agoeng Koerniawan SA
Keyword(s):  
Higher Education ◽  
Information System ◽  
Information Systems ◽  
Teaching And Learning ◽  
Process Data ◽  
Quality Of Higher Education ◽  
Before And After ◽  
Academic Information

The purpose of this study was to determine the role of academic information systems in improving the quality of higher education implementation in PGRI STKIP Bangkalan, and the extent to which the policies of implementing higher education before and after the use of information systems and how satisfaction is felt by students towards academic information systems at STKIP PGRI Bangkalan, named STKIP PGRI Bangkalan’s Siakad.The study was conducted by conducting a survey of users of the internet-based academic information system (Siakad STKIP PGRI Bangkalan), namely lecturers, students and employees with the method of observation and conducting in-depth interviews to obtain as much information as possible from all respondents/informants. The number of informants was 5 people consisting of the chairman of STKIP PGRI Bangkalan, Vice Chairman I, Head of BAAK and two students who had experience in their respective fields of work, knew deeply and had many roles in the process of using information systems.Based on the results of the study, it was shown that with the use of the information system/ STKIP PGRI Bangkalan’s Siakad which is one of the facilities for the smooth activities of the teaching and learning process, it proved to provide convenience, many benefits and benefits that greatly support the duties of serving lecturers, students and outsiders requiring. This is evidenced by the support of the support of lecturers and students, capacity, namely the ability of employees to process data and value, namely the benefits felt by lecturers, employees and students as well as outside parties in need.

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