A New Device for Improving the Quality of Distribution Feeder Power to Digital Computer and Other Voltage-Sensitive Loads

1982 ◽  
Vol PAS-101 (8) ◽  
pp. 2916-2924 ◽  
Author(s):  
E. Courville ◽  
E. Gulachenski ◽  
A. Kesterson
Keyword(s):  
Digital Computer ◽  
New Device ◽  
Distribution Feeder

Project Review on Water Level Sensing Using PLC

2016 ◽  
Vol 2 (2) ◽  
Author(s):  
Osama Mahfooz ◽  
Mujtaba Memon ◽  
Asim Iftikhar
Keyword(s):  
Automatic Control ◽  
Water Level ◽  
Digital Computer ◽  
Human Error ◽  
Water Tank ◽  
Industrial Plants ◽  
Commercial Use ◽  
The Cost ◽  
Water Tanks

<span>A PLC is a digital computer used to automate electromechanical processes. This research is<span> based on automation of a water tank by using Siemens PLC. Automatic control of water tanks<span> can work continuously and can provide accurate quantity of water in less time. In such process<span> there is no need of labor so there is no human error. Without human error, the quality of product<span> is better and the cost of production would definitely decrease with no error in quantity required.<span> Water level sensing can be implemented in industrial plants, commercial use and even at home<br /><br class="Apple-interchange-newline" /></span></span></span></span></span></span>

A Study on the Optimization and Application of All Radial Truck Tire Building Process Technology

2009 ◽  
Vol 87-88 ◽  
pp. 244-249
Author(s):  
Zhi Hua Li ◽  
Shi Liang Yang ◽  
Peng Xia ◽  
Zhao Feng Li ◽  
Yan Qing Liu ◽  
...  
Keyword(s):  
Economic Benefit ◽  
Control Device ◽  
Process Technology ◽  
New Device ◽  
Truck Tire ◽  
Building Process ◽  
Technology Process ◽  
And Control

By analyzing the technology process of all steel radial truck tire building machine, the author finds that there is a big potential of improvement both in stitching effect and efficiency. A new kind of stitching and control device is designed to replace the original. The new device can realize the soft stitching of tire, which reduces redundant actions and thus optimizes the process and improves the stitching efficiency. It is found in tests that the optimized process reduces the blister defectives greatly. Both productivity and quality of tires are improved significantly. It shows a big economic benefit.

scholarly journals THE COMPARISON OF TREE QUALITIES

1965 ◽  
Vol 41 (2) ◽  
pp. 215-221
Author(s):  
P. L. Northcott
Keyword(s):  
Computer Program ◽  
Linear Combination ◽  
Digital Computer ◽  
Weighted Average ◽  
Statistical Procedure ◽  
Weighted Sum ◽  
Average Quality ◽  
The Individual

The need to compare individuals is discussed briefly. It is suggested that the composite quality of an individual is best defined as the weighted sum of a number of measurable characteristics of the individual. A statistical procedure for comparison of weighted average quality is derived from application of the principle of the linear combination of variables. A digital computer program is available.

scholarly journals 3D Digital Impression Systems Compared with Traditional Techniques in Dentistry: A Recent Data Systematic Review

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1982 ◽  
Author(s):  
Marco Cicciù ◽  
Luca Fiorillo ◽  
Cesare D’Amico ◽  
Dario Gambino ◽  
Emanuele Mario Amantia ◽  
...  
Keyword(s):  
New Technologies ◽  
Digital Impression ◽  
New Device ◽  
Advantages And Disadvantages ◽  
Impression Technique ◽  
Impression Materials ◽  
Key Factor ◽  
Dental Impression ◽  
Digital Or

The advent of new technologies in the field of medicine and dentistry is giving improvements that lead the clinicians to have materials and procedures able to improve patients’ quality of life. In dentistry, the last digital techniques offer a fully digital computerized workflow that does not include the standard multiple traditional phases. The purpose of this study is to evaluate all clinical trials and clinical randomized trials related to the digital or dental impression technique in prosthetic dentistry trying to give the readers global information about advantages and disadvantages of each procedure. Data collection was conducted in the main scientific search engines, including articles from the last 10 years, in order to obtain results that do not concern obsolete impression techniques. Elsevier, Pubmed and Embase have been screened as sources for performing the research. The results data demonstrated how the working time appears to be improved with digital workflow, but without a significant result (P = 0.72596). The papers have been selected following the Population Intervention Comparison Outcome (PICO) question, which is related to the progress on dental impression materials and technique. The comparison between dentists or practitioners with respect to classic impression procedures, and students open to new device and digital techniques seem to be the key factor on the final impression technique choice. Surely, digital techniques will end up supplanting the analogical ones altogether, improving the quality of oral rehabilitations, the economics of dental practice and also the perception by our patients.

scholarly journals CLINICAL, LABORATORY AND ECONOMIC JUSTIFICATION OF ORTHOPEDIC TREATMENT OF PATIENTS WITH A NEW DEVICE FOR RESTORING THE MISSING CLINICAL CROWN OF PREMOLARS

2020 ◽  
Vol 16 (1) ◽  
pp. 149-156
Author(s):  
Vladislav Matrosov
Keyword(s):  
Quality Of Life ◽  
Traditional Method ◽  
Clinical Laboratory ◽  
Economic Effect ◽  
Ceramic Coatings ◽  
Orthopedic Treatment ◽  
New Device ◽  
Economic Justification ◽  
Complete Destruction

Thing. A new substantiated method of orthopedic treatment of patients with complete destruction of the crown of the tooth is described, objective results of its use are given, and an economic analysis of its use is carried out in comparison with the traditional method of treatment of such patients. The goal is to create a device for restoring the missing clinical crown of premolars and its clinical, laboratory and economic justification. Methodology. During the study, orthopedic treatment of 20 patients with complete destruction of the crown of the tooth was carried out. A clinical assessment of the effectiveness of treatment using targeted radiography, occlusion and quality of life of patients was conducted using the OHIP-14 RU questionnaire. The compressive strength of ceramic coatings was studied for 10 samples of our device and 10 samples with a traditional ceramic-metal crown. The economic effect of our proposed method is analyzed in comparison with the traditional one. Results. 1 month after the treatment, a favorable outcome was observed in all patients on targeted radiographs; during occlusionography, 10 % of patients showed slight premature contacts in lateral occlusion, which were eliminated by selective grinding. 95 % of patients rated the quality of life as good, 5 % ― unsatisfactory. Safety margin of ceramic coating on samples of our device was 2.4 times higher than on samples of a traditional device. The economic efficiency of the traditional method in comparison with the one we proposed below has a ratio of 1:1.35, respectively. To restore one missing clinical tooth crown, the difference in cost between these methods is 21.2 %, or 1536 rubles. Conclusions. The results of the study allow us to recommend our proposed device for active use in practical dentistry in the treatment of patients with complete destruction of the clinical crown of premolars.

scholarly journals Impact of Harmonics on Power Quality and Losses in Power Distribution Systems

2015 ◽  
Vol 5 (1) ◽  
pp. 166 ◽  
Author(s):  
M. Jawad Ghorbani ◽  
Hossein Mokhtari
Keyword(s):  
Power Quality ◽  
Power Distribution ◽  
Distribution Systems ◽  
Harmonic Distortion ◽  
Equivalent Model ◽  
Power Distribution Systems ◽  
Nonlinear Loads ◽  
Distribution Feeder ◽  
The Impact

This paper investigates the harmonic distortion and losses in power distribution systems due to the dramatic increase of nonlinear loads. This paper tries to determine the amount of the harmonics generated by nonlinear loads in residential, commercial and office loads in distribution feeders and estimates the energy losses due to these harmonics. Norton equivalent modeling technique has been used to model the nonlinear loads. The presented harmonic Norton equivalent models of the end user appliances are accurately obtained based on the experimental data taken from the laboratory measurements. A 20 kV/400V distribution feeder is simulated to analyze the impact of nonlinear loads on feeder harmonic distortion level and losses. The model follows a “bottom-up” approach, starting from end users appliances Norton equivalent model and then modeling residential, commercial and office loads. Two new indices are introduced by the authors to quantize the effect of each nonlinear appliance on the power quality of a distribution feeder and loads are ranked based on these new defined indices. The simulation results show that harmonic distortion in distribution systems can increase power losses up to 20%.

On the Physical Correlates of Timbre

2017 ◽  
Author(s):  
James Tenney
Keyword(s):  
Steady State ◽  
Physical Properties ◽  
Large Class ◽  
Digital Computer ◽  
Musical Instruments ◽  
Quasi Steady State ◽  
Computer Technique ◽  
Transient Phenomena ◽  
Basic Parameters

James Tenney discusses the physical correlates of timbre using the digital computer technique developed at the Bell Telephone Laboratories. His intention is to synthesize a large class of timbres, first by considering the physical properties of natural sounds as well as sounds produced by conventional musical instruments. He goes on to explore how many different ways that the quality or timbre of a sound may be made to vary perceptibly, and in how many ways the quality of one sound may be distinguished from that of another, given that the perceived pitch, intensity, and duration are held constant. Tenney also talks about certain transient phenomena and various kinds of quasi-steady-state modulation processes which, along with the spectrum, constitute what he calls the three basic parameters of timbre. He examines each of these three parameters into several subparameters.

A New Device and Technique for Thermal Conductivity Measurements of Glass-Forming Materials With Application to Cryopreservation

2013 ◽  
Author(s):  
Lili E. Ehrlich ◽  
Justin S. G. Feig ◽  
Scott N. Schiffres ◽  
Jonathan A. Malen ◽  
Yoed Rabin
Keyword(s):  
Thermal Conductivity ◽  
Temperature Distribution ◽  
Ice Formation ◽  
Distribution Analysis ◽  
Conductivity Measurements ◽  
New Device ◽  
Cryoprotective Agents ◽  
Glass Forming ◽  
Glass Forming Materials

The current study is aimed at developing a device and technique to measure the thermal conductivity of materials relevant to cryopreservation — the preservation of biomaterials at very low temperatures. It is well established that ice formation is the cornerstone of low-temperature injury [1]. In an effort to improve the outcome of cryopreservation, ice crystallization can be controlled by the addition of cryoprotective agents (CPAs), such as dimethyl sulfoxide (DMSO). CPA solutions are characterized by exponentially increasing viscosity with the decreasing temperature. If cooled rapidly enough, the crystalline phase can be completely suppressed and the material is trapped in a solid-like state known as vitrification (vitreous in Latin means glassy). While correlating the quality of the cryopreserved product with the thermal history may be straightforward to obtain in small specimens, characterized by close-to-uniform temperature distribution, analysis of larger specimens requires integration of mathematical tools to estimate the spatial temperature distribution at any instant along the cryogenic protocol. The data developed in the current study is aimed at enabling the corresponding thermal analysis, while exploring the variation in thermal conductivity between the crystalline and glassy states.

scholarly journals Development of a video fluorescence registration system for a LED emitter

2021 ◽  
Vol 2058 (1) ◽  
pp. 012026
Author(s):  
A V Nekhoroshev ◽  
M V Loshenov ◽  
V B Loschenov
Keyword(s):  
Photodynamic Therapy ◽  
Clinical Practice ◽  
Fluorescence Signal ◽  
Registration System ◽  
Fluorescent Signal ◽  
New Device ◽  
Fluorescence Diagnostics ◽  
Effective Use ◽  
New Devices

Abstract Photodynamic therapy (PDT) is widely implemented in clinical practice. This contributes to the development of new devices for conducting fluorescence diagnostics (FD) and PDT. One of the key parameters for the new devices is the ability to perform PDT and evaluate the fluorescence signal during PDT. Most PDT devices do not have the ability to perform PD and register a fluorescent signal, which is important for monitoring the quality of treatment. The purpose of this work is to develop a new device that will be able to conduct PD and PDT during the operation. Using a video system with software for it and an LED irradiator with several types of LEDs. The results show the effective use of this system and the ability to observe FD, as well as conduct.

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