scholarly journals Optimal Generation of Output Torque for Industrial Motors using Variable Frequency Drive and Gearbox Drive

2019 ◽  
Vol 8 (4) ◽  
pp. 12147-12153
Keyword(s):  
Gear Ratio ◽  
Vital Role ◽  
Variable Frequency ◽  
Load Range ◽  
Variable Frequency Drive ◽  
Output Torque ◽  
Continuous Output ◽  
Efficiency Losses ◽  
The Right ◽  
Selection Of

This paper depicts the exploration of output torque of Gear reduction drive and variable frequency drive (VFD) with detailed analysis report for the various load conditions. The right selection of VFD will depend on the load requirement and application. The higher the load therefore more torque needed in an application, the higher the current draw of the motor will be. Since VFDs are rated by their continuous output current (amps), it is important to select a drive with adequate current to the motor for optimal performance. The property of Torque is converse effect of gear reduction. By means of gear ratio, the output torque is increased by developing the torque with reduced efficiency losses. On the other hand, in some applications the gear reduction play a vital role in reduces the speed while increase the torque and in many other applications it uses to increase speed with reduced torque. In recent era, many industrial drives are designed as such that to run at 60% to 100% of rated load. In this scenario the drive would get optimum efficiency is generally obtained nearly 75% of rated load. Thus, a 20 horsepower (HP) electric drive has a satisfactory load range of 12 to 20 HP with optimum efficiency is at 7.5 HP. A motor’s efficiency tends to decrease dramatically below about 50% load. Hence it’s very important to choose the drive for the proper application with different loading conditions

scholarly journals Идентификация и образ адресата в интернет-соболезнованиях

2013 ◽  
pp. 181-192
Author(s):  
Andrzej Narloch
Keyword(s):  
Social Relationships ◽  
Vital Role ◽  
New Form ◽  
The Dead ◽  
The Right ◽  
Special Circumstances ◽  
Selection Of

An internet condolence letter has become a new form of communication in special circumstances. The selection of appropriate vocabulary plays a vital role in writing internet condolence letters as it is indirectly connected with expressing sympathy, support and understanding. In addition, the form of addressing the recipient often determines the right reception of a condolence letter. A recipient is identified in apostrophes in many ways. His or her nationality is emphasized most frequently. Also, ethnicity and social relationships are quite often indicated. Very emotional apostrophes directed to the dead have also been found in the analyzed material. Each kind of identification requires using suitable means of expression. Many of them contain additional emotive language. The analyzed apostrophes are very emotional and full of positive evaluative expressions. All the same, there are also many official, almost pompous constructions.

Evaluation and selection of lean resourced employee in the manufacturing industries using the TOPSIS-Simos method

2016 ◽  
Vol 232 (1) ◽  
pp. 162-171 ◽  
Author(s):  
K Balaji ◽  
VS Senthil Kumar
Keyword(s):  
Lean Manufacturing ◽  
Computation Time ◽  
Vital Role ◽  
Decision Makers ◽  
Manufacturing Industries ◽  
Industrial Sectors ◽  
Lean Assessment ◽  
Modern Manufacturing ◽  
The Right ◽  
Selection Of

Among modern manufacturing methods, lean manufacturing has been a dominant method used in many industrial sectors. The principle of the lean manufacturing is to eliminate the wastes present in various forms of the industry. The adoption of lean manufacturing in an industry could be identified by the leanness measurement through lean assessment. In lean assessment, the evaluator plays a vital role. Selecting the right person for the assessment will reduce the ambiguity, time consumption and computation time. Decision-makers play a vital role in lean assessment. Few studies have been found in the literature to select or identify the decision-maker. In this article, the TOPSIS-Simos method has been proposed to identify a lean resourced employee in the industry. The proposed method is case studied in the manufacturing industries. The lean resourced employee has been identified after computation. The proposed method could be applied to identify the lean resourced employee in all types of manufacturing industries.

Energy Efficiency Analysis in ERA using NFL-BA Algorithm

2020 ◽  
pp. 340-348
Author(s):  
Palky Mehta ◽  
H. L. Sharma
Keyword(s):  
Cluster Head ◽  
Vital Role ◽  
Wireless Sensor ◽  
Energy Usage ◽  
Cluster Heads ◽  
Comparison Results ◽  
Current Scenario ◽  
Energy Efficiency Analysis ◽  
Selection Of

In the current scenario of Wireless Sensor Network (WSN), power consumption is the major issue associated with nodes in WSN. LEACH technique plays a vital role of clustering in WSN and reduces the energy usage effectively. But LEACH has its own limitation in order to search cluster head nodes which are randomly distributed over the network. In this paper, ERA-NFL- BA algorithm is being proposed for selects the cluster heads in WSN. This algorithm help in selection of cluster heads can freely transform from global search to local search. At the end, a comparison has been done with earlier researcher using protocol ERA-NFL, which clearly shown that proposed Algorithm is best suited and from comparison results that ERA-NFL-BA has given better performance.

PROBLEM ASPECTS OF THE IMPLEMENTATION OF CRIMINAL PROCEDURAL NORMS OF PROTECTION OF THE VICTIMS FROM CRIME

2020 ◽  
pp. 72-76
Author(s):  
Яна Валерьевна Самиулина
Keyword(s):  
Preventive Measure ◽  
Criminal Procedure ◽  
Legal Rights ◽  
Criminal Proceedings ◽  
Effective Mechanism ◽  
The Russian Federation ◽  
The Individual ◽  
The Right ◽  
To Receive ◽  
Selection Of

В настоящей статье предпринята попытка исследовать отдельные проблемные аспекты института потерпевшего в российском уголовном процессе. В этих целях подвергнуты анализу правовые нормы, регламентирующие его процессуальный статус. Раскрываются отдельные пробелы уголовно-процессуального законодательства в сфере защиты законных прав и интересов потерпевшего. Автор акцентирует внимание на том, что совершенствование уголовно-процессуального законодательства в части расширения правомочий потерпевшего по отстаиванию своих нарушенных преступлением прав следует продолжить. На основании проведенного исследования действующего законодательства в части регламентации прав потерпевшего от преступления предлагается расширить перечень получаемых им копий постановлений, указанных в п. 13 ч. 2 ст. 42 УПК РФ. Автор предлагает включить в перечень указанной законодательной нормы право получения потерпевшим копии постановления об избрании конкретного вида меры пресечения, избранного в отношении подозреваемого (обвиняемого). Для создания действенного механизма защиты интересов потерпевших от преступления юридических лиц предлагаем ч. 9 ст. 42 УПК РФ изложить в следующей редакции: «в случае признания потерпевшим юридического лица его процессуальное право в уголовном процессе осуществляет представляющий его профессиональный адвокат». This article attempts to investigate certain problematic aspects of the institution of the victim in the Russian criminal process. For this purpose, analyzed the individual norms governing his procedural status. Separate gaps of the criminal procedure legislation in the sphere of protection of the legal rights and interests of the victim are disclosed. The author emphasizes that the improvement of the criminal procedure legislation in terms of the extension of the victim’s authority to defend his rights violated by the crime should be continued. On the basis of the study of the current legislation regarding the regulation of the rights of the victim of a crime, it is proposed to expand the list of decisions received by him, referred to in paragraph 13, part 2 of article 42 Code of Criminal Procedure. The author proposes to include in the list of the indicated legislative norm the right to receive the victim a copy of the decision on the selection of a specific type of preventive measure, selected in relation to the suspect (accused). To create an effective mechanism for protecting the interests of legal entities victims of a crime, we offer part 9 of art. 42 of the Code of Criminal Procedure of the Russian Federation shall be reworded as follows: «if a legal entity is recognized as a victim, his procedural right in criminal proceedings is exercised by the professional lawyer representing him».

scholarly journals The Impact of Alkaloid-Producing Epichloë Endophyte on Forage Ryegrass Breeding: A New Zealand Perspective

Toxins ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 158
Author(s):  
Colin Eady
Keyword(s):  
Seed Production ◽  
Health Issues ◽  
Abiotic Stressors ◽  
Livestock Health ◽  
The Right ◽  
The Impact ◽  
The Relationship ◽  
And Storage ◽  
Selection Of ◽  
Epichloë Endophyte

For 30 years, forage ryegrass breeding has known that the germplasm may contain a maternally inherited symbiotic Epichloë endophyte. These endophytes produce a suite of secondary alkaloid compounds, dependent upon strain. Many produce ergot and other alkaloids, which are associated with both insect deterrence and livestock health issues. The levels of alkaloids and other endophyte characteristics are influenced by strain, host germplasm, and environmental conditions. Some strains in the right host germplasm can confer an advantage over biotic and abiotic stressors, thus acting as a maternally inherited desirable ‘trait’. Through seed production, these mutualistic endophytes do not transmit into 100% of the crop seed and are less vigorous than the grass seed itself. This causes stability and longevity issues for seed production and storage should the ‘trait’ be desired in the germplasm. This makes understanding the precise nature of the relationship vitally important to the plant breeder. These Epichloë endophytes cannot be ‘bred’ in the conventional sense, as they are asexual. Instead, the breeder may modulate endophyte characteristics through selection of host germplasm, a sort of breeding by proxy. This article explores, from a forage seed company perspective, the issues that endophyte characteristics and breeding them by proxy have on ryegrass breeding, and outlines the methods used to assess the ‘trait’, and the application of these through the breeding, production, and deployment processes. Finally, this article investigates opportunities for enhancing the utilisation of alkaloid-producing endophytes within pastures, with a focus on balancing alkaloid levels to further enhance pest deterrence and improving livestock outcomes.

scholarly journals Freedom and Engineering for All

2012 ◽  
Vol 134 (09) ◽  
pp. 32-37
Author(s):  
Jessica M. Wyndham
Keyword(s):  
Human Rights ◽  
Educational Program ◽  
American Association ◽  
Scientific Progress ◽  
Vital Role ◽  
Professional Societies ◽  
Academic Instruction ◽  
Scientists And Engineers ◽  
The Right ◽  
Engineering Enterprise

This article discusses benefits and challenges in engaging engineers in connecting engineering and human rights. Engineers have a vital role to play in giving visibility to human rights, particularly in matters relevant to their field or discipline. Academic instruction in ethics is increasingly viewed as integral to a rigorous educational program in science or engineering. The Science and Human Rights Coalition of the American Association for the Advancement of Science is one network of professional societies that recognize a role for scientists and engineers in human rights. An important way in which engineers can protect and promote human rights is by ensuring that the products they develop benefit people in need. Engineers have human rights that need to be respected in order for the engineering enterprise to flourish and the benefits of engineering to be broadly enjoyed. Engineers have opportunities to contribute to human rights compliance when designing and implementing projects, and to contribute to the realization of the right to benefit from scientific progress and its applications.

Variable-Frequency Prony Method in the Analysis of Electrical Power Quality

2012 ◽  
Vol 19 (1) ◽  
pp. 39-48 ◽  
Author(s):  
Jarosław Zygarlicki ◽  
Janusz Mroczka
Keyword(s):  
Least Squares ◽  
Power Quality ◽  
Electrical Power ◽  
Electric Energy ◽  
Variable Frequency ◽  
Prony Method ◽  
Analysis Window ◽  
Proposed Modification ◽  
Selection Of

Variable-Frequency Prony Method in the Analysis of Electrical Power QualityThe article presents a new modification of the the least squares Prony method. The so-called variable-frequency Prony method can be a useful tool for estimating parameters of sinusoidal components, which, in the analyzed signal, are characterized by time-dependent frequencies. The authors propose use of the presented method for testing the quality of electric energy. It allows observation of phenomena which, when using traditional methods, are averaged in the analysis window. The proposed modification of least squares Prony method is based on introduction and specific selection of a frequency matrix. This matrix represents frequencies of estimated components and their variability in time.

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