scholarly journals APPLICATION ANALYSIS OF OPERATING SYSTEM TEACHING BASED ON CASE TEACHING METHODEXAMPLE, OPERATING SYSTEM, TEACHING

2021 ◽  
Author(s):  
FENG GUO
Keyword(s):  
Operating System ◽  
Practical Application ◽  
Application Analysis ◽  
Innovation Ability ◽  
Computer Teaching

It is of great significance to improve the quality of computer teaching and the quality of students to instantiate every definition and algorithm that is difficult to understand in the operating system. This kind of instantiation teaching will make students realize the sense of achievement of operating system learning, and help to cultivate students' innovation ability and practical application ability.

scholarly journals Ten Basic Rules of Antibody Validation

2018 ◽  
Vol 13 ◽  
pp. 117739011875746 ◽  
Author(s):  
Michael G Weller
Keyword(s):  
Practical Application ◽  
Validation Criteria ◽  
Antibody Validation ◽  
Quality Of Research

The quality of research antibodies is an issue for decades. Although several papers have been published to improve the situation, their impact seems to be limited. This publication makes the effort to simplify the description of validation criteria in a way that the occasional antibody user is able to assess the validation level of an immunochemical reagent. A simple, 1-page checklist is supplied for the practical application of these criteria.

Chemical Structure of Vulcanized Rubber

1939 ◽  
Vol 12 (1) ◽  
pp. 43-55
Author(s):  
J. R. Brown ◽  
E. A. Hauser
Keyword(s):  
Chemical Structure ◽  
Empirical Knowledge ◽  
Extensive Investigation ◽  
Practical Application ◽  
True Nature ◽  
Rubber Industry ◽  
Vulcanized Rubber ◽  
Metallic Salts ◽  
Other Substances

Abstract A CENTURY ago, Charles Goodyear in America and Th. Hancock in England found that the properties of crude rubber could be greatly improved by heating it with sulfur. The product resulting was more elastic, more resistant to tear and abrasion, less affected by solvents, and decidedly less thermoplastic. The treatment of rubber to give these desired properties is known generally as vulcanization and must be considered as the basis for the enormous growth of the rubber industry and the extensive use of rubber products in our everyday life. Broadly speaking, vulcanization involves the reaction, in some fashion, of sulfur with rubber. Extensive investigation has revealed other substances, such as benzoyl peroxide or polynitrobenzenes, which can transform rubber into a “vulcanized” condition. Experience has also shown that metallic salts of zinc or lead and especially certain organic compounds called “accelerators” greatly affect the rate of vulcanization, and these are favorably employed in practice. A vast amount of empirical knowledge has been gained which has greatly improved the practical application of vulcanization and the quality of rubber products, but which has failed as yet to reveal a complete picture of the true nature of the process.

scholarly journals Design of PBX IP VoIP Server in State Polytechnic of Malang Network Based on Single Board Circuit

2017 ◽  
Vol 4 (1) ◽  
pp. 15-22
Author(s):  
Arinta Fadlil Fajar Wicaksono
Keyword(s):  
Operating System ◽  
Packet Loss ◽  
Communication System ◽  
Communication Quality ◽  
Communication Services ◽  
Cpu Usage ◽  
Bandwidth Capacity

Building VoIP technology requires a server called Elastix. Singleboard circuit device can be an alternative to cover the shortcomings of a PC as a VoIP server, to support practicum activities. The specifications for the quad-core processor and 1GB LPDDR2 memory are expected to be able to provide access to the latest version of the operating system to be able to produce better communication quality as I PPBX. This study designed a VoIP IP PBX server communication system at the Polinema Telecommunication Laboratory using the Elastix Linux operating system, to determine the quality of VoIP communication services and the performance of a single board circuit as an IPPBX server. The results of the research are 64 kbps bandwidth capacity capable of serving a customer capacity of 181 subscribers through 8 number of channels. QoS measurement obtained a delay value of 4.87091 ms; jitter of 18,265ms; packet loss of 0.71%; throughput of 0.2747 Mbit / sec. The singleboard circuit server is capable of serving VoIP communications for as many as 20 users and 10 calls simultaneously on the same server with a cpu usage percentage of 17.7% and 17.2% cpu usage, when communicating with other servers.

scholarly journals COMPARISON OF BASIC MAINTENANCE CONCEPTS USING WITNESS

2021 ◽  
Vol 2021 (6) ◽  
pp. 5435-5440
Author(s):  
VLADIMIRA SCHINDLEROVA ◽  
◽  
IVANA SAJDLEROVA ◽  
Keyword(s):  
21St Century ◽  
Simulation Software ◽  
Predictive Maintenance ◽  
Maintenance Management ◽  
Practical Application ◽  
Manufactured Products ◽  
The Right ◽  
Positive Effect ◽  
Production Facilities

Maintenance is a complex, extensive and important issue in terms of its impact on the quality of manufactured products or services provided in all areas of industry. The importance of predictive maintenance for the industry in the 21st century is crucial. However, the right approach to maintenance management is often underestimated in many companies today, although it can have a very positive effect on the company’s efficiency. Using the example of a practical application, the paper includes a comparison of three main maintenance concepts – classical (reactive), planned, predictive through the simulation software Witness. Maintenance concepts are compared in terms of their ability to solve and eliminate failures that occur in production facilities during operation.

scholarly journals Experience in Pilotless Aircrafts’ Application for Assessment of the Surface Water Bodies’ Bank State

2018 ◽  
Author(s):  
Keyword(s):  
Surface Water ◽  
Reference Points ◽  
Water Bodies ◽  
Protection Measures ◽  
Field Investigations ◽  
Application Analysis ◽  
Bank Protection ◽  
Surface Water Bodies ◽  
Aircraft Application

Experience of the pilotless aircrafts application for decision of tasks connected with surface water bodies’ bank stripe condition and dynamics assessment has been discussed. In order to increase substantially the survey and subsequent estimations accurancy the use of reference points (markers) has been proposed, with determining of the plane and altitude coordinates with professional two-frequency GPS-GLONASS recievers in accordance with the standing regulating documants. This approach will enable to improve drastically quality of the obtained assessments and efficiency of the pilotless aircraft application. Analysis of the slope reforming intensity has been carried out at the range of the Kosva River right bank in the vicinity of the villige of Peremskoye on the basis of the 2017 field investigations outcomes. Such estimations are necessary for effective forecasting of bank changes dynamics, as well as for designing of any bank protection measures.

scholarly journals Percepcja i projekcja krajobrazu: teorie, zastosowania, oczekiwania = Perception and projection of the landscape: theories, applications, expectations

2019 ◽  
Vol 91 (3) ◽  
pp. 365-384
Author(s):  
Tadeusz Jan Chmielewski ◽  
Szymon Chmielewski ◽  
Agnieszka Kułak
Keyword(s):  
Scientific Work ◽  
Research Field ◽  
Practical Application ◽  
Landscape Perception ◽  
Knowledge Based ◽  
Space Projection ◽  
Surrounding Space ◽  
New Research ◽  
Opening Up

The human species transforms the landscape to meet its needs, but landscape resources and valuable features at the same time affect wellbeing in the context of human activity. In these mutually conditioned interactions, two processes playing a key role are the so-called landscape perception and landscape projection. This article presents: (1) a review of theories playing a key role in the development of knowledge on landscape perception; (2) the basis for landscape projection as a logical and creative continuation of perception processes; (3) an outline of the theory of physiognomic landscape structure and of possibilities for it to gain practical application; (4) the results of the first Polish research into the public’s expectations where quality of the landscape is concerned. Perception of the landscape entails the receipt of stimuli from surrounding space with the help of the senses. It serves primarily in knowledge-based transformation of landscape systems, in a manner that meets ever-more exacting requirements on the part of society when it comes to living in an environment of the highest quality. Only a little scientific work has been devoted to the process of landscape projection. This is therefore a new research field, just opening up, which has the potential to give rise to a group of space-projection theories.

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