Study of External Flashes Influence and False Operation on Work Stability of Laser Speed Sensors

2020 ◽  
Author(s):  
Artemii A Vasilchenko ◽  
Daniyar Sherimov ◽  
Anton O. Belorus ◽  
Ilya M Pleshanov ◽  
Anna M. Uryadysheva
Keyword(s):  
Work Stability

Digital DC Speed Control System in Mine Hoist Application

2011 ◽  
Vol 219-220 ◽  
pp. 1017-1021
Author(s):  
Rui He ◽  
Yun Ping Ge
Keyword(s):  
Control System ◽  
Closed Loop ◽  
Speed Control ◽  
Closed Loop System ◽  
Pi Regulator ◽  
Control Precision ◽  
Speed Control System ◽  
Digital Trigger ◽  
Mine Hoist ◽  
Work Stability

Mine hoist shoulder important transport tasks. Through the analysis of the main circuit of mine hoist, this paper studies out ASCS digital DC speed control system whose core is microprocessor and whose hardware part constitutes digital trigger and double closed loop system. The software part not only achieves the system's digital PI regulator, logic switching, digital trigger phase shift, pulse channel selection and pulse width setting, but also realizes the systematic detection, monitoring, fault diagnosis, which improves the control precision and work stability of the system.

The Synchronization Control of a Series Hybrid Power Forklift System

2014 ◽  
Vol 543-547 ◽  
pp. 1351-1354
Author(s):  
Dian Ting Liu ◽  
Wen Xin Ding
Keyword(s):  
Simulation Analysis ◽  
Development Trend ◽  
High Price ◽  
Necessary Condition ◽  
Trace Function ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Human Environment ◽  
The Development Trend ◽  
Work Stability

With the improvement of human environment protection consciousness, and at the situation of the high price of crude oil.Hybrid electric vehicle has gradually become the development trend of the future.Synchronization of power supply of the generator and battery is a necessary condition for forklift work stability. The system outputs SPWM signal by single chip microcomputer AT89C51 as the core chip,implementation of the trace function of frequence and phase,implementation of the defensive function of under-voltage and over-current.The circuitry electrical system is simple and flexible control.Hybrid forklift is verified its effectiveness by simulation analysis through multisim and matlab.Implementation of synchronous control of hybrid systems.

Industrielle Einfacharbeit – Stabilität und Perspektiven / Low-skilled industrial work – stability and perspektives

Arbeit ◽  
2011 ◽  
Vol 20 (3) ◽  
Author(s):  
Peter Ittermann ◽  
Jörg Abel ◽  
Werner Dostal
Keyword(s):  
Industrial Work ◽  
Work Stability

AbstractDer Beitrag thematisiert die Strukturen und Entwicklungsdynamiken industrieller Einfacharbeit und vertritt entgegen anderslautender Diagnosen die These, dass diese kein Auslaufmodell in der Wissensgesellschaft ist. Auf der Basis empirischer Befunde wird gezeigt, dass von einem stabilen Sockel der Einfacharbeit auszugehen ist und zahlreiche Kernzonen dafür in der Industrie identifiziert werden können. Das Beispiel der Ernährungsindustrie verdeutlicht, dass einfache, gering qualifizierte Tätigkeiten ein zentrales Moment in der Produktion und Verpackung von Lebensmitteln sind. Zwar sind die Arbeitsanforderungen auf einem niedrigen Niveau, dennoch ergeben sich verschiedene arbeitsorganisatorische Muster von mehr oder weniger angereicherter Einfacharbeit.

Structure and Properties of the 32CrMoV12-28 Steel Alloyed with WC Powder Using HPDL Laser

2006 ◽  
Vol 530-531 ◽  
pp. 334-339 ◽  
Author(s):  
Leszek Adam Dobrzański ◽  
Krzysztof Labisz ◽  
Marek Piec ◽  
Józef Lelątko ◽  
Andrzej Klimpel
Keyword(s):  
Testing Machine ◽  
Good Work ◽  
Structure And Properties ◽  
Hardness Testing ◽  
Structure Changes ◽  
Tool Surface ◽  
Hot Work Steel ◽  
Power Diode ◽  
Work Stability ◽  
High Power Diode Laser

This paper presents the investigation results of laser alloying and the influence on structure and properties of the surface of the 32CrMoV12-28 hot work steel, carried out using the high power diode laser (HPDL). Structure changes were determined in the work, especially structure fragmentation. Also hardness investigation of the different remelting areas was performed. The reason of this work was also to determine the laser treatment parameters, particularly the laser power, to achieve good work stability and to make the tool surface more resistant for work extremal conditions. Based on microstructural examinations of the obtained material, the distribution of the reinforcing ceramic particles in the hot work tool steel was revealed. Tungsten carbide WC powder was used for alloying. The remelted layers which were formed on the surface of the investigated hot work steel were examined metallographically and analyzed using a hardness testing machine.

scholarly journals Engineered Stable 5-Hydroxymethylfurfural Oxidase (HMFO) from 8BxHMFO Variant of Methylovorus sp. MP688 through B-Factor Analysis

Catalysts ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 1503
Author(s):  
Qiuyang Wu ◽  
Dong Lu ◽  
Shuming Jin ◽  
Jie Lu ◽  
Fang Wang ◽  
...  
Keyword(s):  
Factor Analysis ◽  
Protein Structure ◽  
Hydrogen Bonds ◽  
Horseradish Peroxidase ◽  
Dynamic Simulation ◽  
Terephthalic Acid ◽  
Biotechnological Processes ◽  
The Stability ◽  
Work Stability ◽  
Low Activity

What is known as Furan-2,5-dicarboxylic acid (FDCA) is an attractive compound since it has similar properties to terephthalic acid. Further, 5-hydroxymethylfurfural oxidase (HMFO) is an enzyme, which could convert HMF to FDCA directly. Most wild types of HMFO have low activity on the oxidation of HMF to FDCA. The variant of 8BxHFMO from Methylovorus sp. MP688 was the only reported enzyme that was able to perform FDCA production. However, the stabilization of 8BxHMFO is still not that satisfactory, and further improvement is necessary for the industrial application of the enzyme. In this work, stability-enhanced HMFO from 8BxHFMO was engineered through employing B-factor analysis. The mutation libraries were created based on the NNK degeneracy of residues with the top ten highest B-factor value, and two of the effective mutants were screened out through the high throughput selection with the horseradish peroxidase (HRP)-Tyr assay. The mutants Q319K and N44G show a significantly increased yield of FDCA in the reaction temperature range of 30 to 40 °C. The mutant Q319K shows the best performance at 35 °C with a FDCA yield of 98% (the original 8BxHMFO was only 85%), and a half-life exceeding 72 h. Moreover, molecular dynamic simulation indicates that more hydrogen bonds are formed in the mutants, which improves the stability of the protein structure. The method could enhance the design of more stable biocatalysts; and provides potential for the further optimization and utilization of HMFO in biotechnological processes.

scholarly journals Optimization of the Maintenance Factors in Ampel Mosque, Surabaya, Indonesia

2021 ◽  
Author(s):  
Agung Sedayu
Keyword(s):  
Structural Damage ◽  
Hazardous Materials ◽  
Construction Work ◽  
Maintenance Factors ◽  
Outdoor Spaces ◽  
Religious Tourism ◽  
Building Components ◽  
Level Of Importance ◽  
Work Stability ◽  
Indoor And Outdoor

Abstract The Ampel Mosque in Surabaya is an important historical site for Muslims in Indonesia. The architecture of the Ampel mosque is strongly influenced by Javanese and Arabic culture. a very harmonious integration between Javanese architecture as a form of authenticity and local wisdom in buildings, while Arabic architecture as a complementary and additional component. This research was, therefore, conducted to optimize the maintenance factor in the mosque building to ensure it functions properly and sustainably towards serving as a historic worship place for future generations. Data were collected using questionnaires distributed to the congregants or users of the mosques and analyzed through optimization using a dynamic program based on the level of importance. The results showed seven maintenance factors including the complexity of construction and design, serviceability, building durability, security and safety, aesthetics of the building, user comfort, and maintenance capability. Moreover, the optimization process prioritized the ease in construction work, stability of the construction, durability against structural damage to the building, use of non-hazardous materials, aesthetics of the building, the comfort of indoor and outdoor spaces, and ease of maintenance. These are expected to be the focus of the mosque manager in maintaining the authenticity of the building components. This, therefore, means the Ampel Mosque building can be maintained as a religious tourism destination at the national and international levels in order to ensure its historical value is sustained while the local and national economy is improved.

scholarly journals Motywowanie pracowników w spółkach hodowlanych Agencji Nieruchomości Rolnych

2017 ◽  
Vol 104 (3) ◽  
pp. 86-94
Author(s):  
Stanisław Bagieński ◽  
Anna Grontkowska
Keyword(s):  
Professional Development ◽  
Wage Increase ◽  
Managerial Skills ◽  
Work Stability

The aim of the paper was to evaluate motivating of the workforce in state owned breeding companies of the Agricultural Property Agency. The evaluation focused on the level of meeting employees’ expectations, identifi­cation of the hierarchy of motives as well as assessment of managers’ skills in the field of motivating employees. The results of the study show that the majority of employees’ expectations were not met. It applied particularly to expectations connected with wage increase and promotion. Both level of wage and work stability turned out to be the most important motives. Managerial skills in motivating employees to work were rated as mediocre. Managers attached too little attention to professional development of individual employees.

scholarly journals Research of work stability of diamond detectors used in SCR DDIR

2016 ◽  
Vol 675 (4) ◽  
pp. 042013
Author(s):  
R F Ibragimov ◽  
E M Tyurin ◽  
V V Kadilin ◽  
V A Kolyubin ◽  
K V Zaharchenko ◽  
...  
Keyword(s):  
Work Stability

scholarly journals Are public officials really less satisfied than private sector workers?A comparative study in Brazil

2013 ◽  
Vol 47 (6) ◽  
pp. 1477-1496 ◽  
Author(s):  
Renata Borges
Keyword(s):  
Private Sector ◽  
Comparative Study ◽  
Social Environment ◽  
Empirical Research ◽  
International Literature ◽  
Public Officials ◽  
Public And Private ◽  
The Public ◽  
Satisfaction With Supervision ◽  
Work Stability

This research aims to compare the public and private sectors with regard to satisfaction at work. We conducted a survey with 670 professionals from both sectors in Brazil. The results of variance analysis confirm previous researches indicating that public officials are less satisfied with their work than private sector workers. However, this result does not repeat when we evaluate the satisfaction dimensions. For instance, public officials reported being more satisfied than private sector workers with regard to social environment and work stability. Unexpectedly, the results suggest that there is no difference between these sectors when we analyze the satisfaction with supervision. Therefore, this article is relevant for Brazilian managers, by offering an empirical research on the distinction between public and private. The article also discusses the theoretical implications, since Brazilian findings do not completely support the international literature.

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