RESEARCH OF THE EFFICIENCY OF THE APPLICATION OF THE ELECTRIC DRIVE OF SEEDING DEVICES ON THE WORK OF THE UNIVERSAL PNEUMATIC DRILL "VEGA-8" (TEST RESULTS)

2019 ◽  
Author(s):  
I. Legkoduh ◽  
◽  
S. Demidov ◽  
M. Starodubtseva
Keyword(s):  
Electric Drive ◽  
Pneumatic Drill ◽  
Test Results

Design and Debugging of PMSM Control Algorithm for Electric Drive Tracked Vehicle

2014 ◽  
Vol 697 ◽  
pp. 249-253
Author(s):  
Xia Feng ◽  
Qun Zhang Tu ◽  
Ming Pan ◽  
Xiao Chen Zhang ◽  
Wei Jie Zheng
Keyword(s):  
Electric Drive ◽  
Control Algorithm ◽  
Graphical Model ◽  
Simulation Analysis ◽  
Permanent Magnet Synchronous Motor ◽  
Programming Method ◽  
Stable Operation ◽  
Test Results ◽  
Tracked Vehicle ◽  
Motor Drive System

The design and debugging of motor control algorithm for electric drive tracked vehicle as the research object, this paper proposed a graphical model programming method of the code directly generated based on vector control algorithm model of the permanent magnet synchronous motor created in Matlab/Simulink. After simulation analysis and verification, this paper using real time toolbox automatically generated the embedded C code and implemented a processor in the loop test. The test results show that the longest running time of the control algorithm was 7.1633μs, between code and algorithm model, had high functional equivalence .This programming method is simple and intuitive, easy debugging, stable operation, and provides an effective way for motor drive system software development of electric drive tracked vehicle.

scholarly journals A Method For Determination And Standardization Of Performance Parameters For Aircrafts With Electric Drives

2014 ◽  
Vol 30 (1) ◽  
pp. 31-46
Author(s):  
Zbigniew Jakielaszek ◽  
Mirosław Nowakowski
Keyword(s):  
Air Force ◽  
Electric Drive ◽  
Electric Motor ◽  
Research Team ◽  
Test Results ◽  
Performance Parameters ◽  
Flight Tests ◽  
Electric Drives ◽  
New Type ◽  
Institute Of Technology

Abstract The study outlines the technique for flight tests carried out for a plane powered by an electric drive and the method for standardization of performance parameters applicable to evaluation of test results. Due to the relatively new type of drive, which is an electric motor, the literature references provide no descriptions of such issues. Therefore the solutions presented in the paper are the own contribution of the research team from Air Force Institute of Technology (ITWL).

scholarly journals The comparison of vibro-acoustic impact of chainsaws with electric and combustion drives

2018 ◽  
Vol 182 ◽  
pp. 02020 ◽  
Author(s):  
Wojciech Rukat ◽  
Roman Barczewski ◽  
Bartosz Jakubek ◽  
Mateusz WrÓbel
Keyword(s):  
Electric Drive ◽  
Cutting Process ◽  
Test Results ◽  
Noise Levels ◽  
Different Types ◽  
Acoustic Impact ◽  
Working Day ◽  
High Level

Chainsaws generate high level vibrations and noise during work. No matter what type of the drive (electric, combustion) they exceed the per-missible levels defined for a standard eight-hour working day. The intensity of a vibro-acoustic impact on chainsaw operators depends on many factors. One of them is the type of the drive. This is due to significant differences in saw design (inter alia characteristics of the drive, rotational speeds - quasi-constant for an electric drive and variable for a combustion one). For chain-saws of the same or similar power and different types of the drive the levels of vibrations and noise may vary. The paper compares the noise levels and frequency weighted vibration accelerations for different types of the drive. The tests were performed with the same interchangeable cutting set (guide bar, cutting chain). The repeatability of the cutting process was ensured. The test results may be helpful when choosing the tool.

scholarly journals A dedicated battery for an electric bike

2019 ◽  
Vol 28 ◽  
pp. 01033
Author(s):  
Jarosław Jajczyk ◽  
Kamil Słomczyński
Keyword(s):  
Electric Drive ◽  
Test Results ◽  
Brushless Motor ◽  
Electric Bicycle ◽  
Electric Bike

The project presents a dedicated battery for an electric bicycle. Information on the structure of the vehicle and the principles of operation were given. An electric drive consisting of a brushless motor was characterized. The process of designing and making the battery is presented. The battery has been developed in a universal way, allowing installation in other constructions. The test results of the developed battery have been presented.

Using Conventional Articulation Tests With Highly Unintelligible Children

1992 ◽  
Vol 23 (1) ◽  
pp. 52-60 ◽  
Author(s):  
Pamela G. Garn-Nunn ◽  
Vicki Martin
Keyword(s):  
Test Results ◽  
Phonological Processes ◽  
Rule Based ◽  
Severity Level ◽  
Error Sensitivity ◽  
Conventional Tests ◽  
Severity Levels ◽  
Conventional Test ◽  
Impaired Children

This study explored whether or not standard administration and scoring of conventional articulation tests accurately identified children as phonologically disordered and whether or not information from these tests established severity level and programming needs. Results of standard scoring procedures from the Assessment of Phonological Processes-Revised, the Goldman-Fristoe Test of Articulation, the Photo Articulation Test, and the Weiss Comprehensive Articulation Test were compared for 20 phonologically impaired children. All tests identified the children as phonologically delayed/disordered, but the conventional tests failed to clearly and consistently differentiate varying severity levels. Conventional test results also showed limitations in error sensitivity, ease of computation for scoring procedures, and implications for remediation programming. The use of some type of rule-based analysis for phonologically impaired children is highly recommended.

Vestibular Function and Motion Sickness Susceptibility: Videonystagmographic Evidence From Oculomotor and Caloric Tests

2020 ◽  
Vol 29 (2) ◽  
pp. 188-198
Author(s):  
Cynthia G. Fowler ◽  
Margaret Dallapiazza ◽  
Kathleen Talbot Hadsell
Keyword(s):  
Phase Velocity ◽  
Motion Sickness ◽  
Repeated Measures ◽  
Short Form ◽  
Vestibular Function ◽  
Slow Phase ◽  
Test Results ◽  
Normal Range ◽  
Slow Phase Velocity ◽  
Caloric Tests

Purpose Motion sickness (MS) is a common condition that affects millions of individuals. Although the condition is common and can be debilitating, little research has focused on the vestibular function associated with susceptibility to MS. One causal theory of MS is an asymmetry of vestibular function within or between ears. The purposes of this study, therefore, were (a) to determine if the vestibular system (oculomotor and caloric tests) in videonystagmography (VNG) is associated with susceptibility to MS and (b) to determine if these tests support the theory of an asymmetry between ears associated with MS susceptibility. Method VNG was used to measure oculomotor and caloric responses. Fifty young adults were recruited; 50 completed the oculomotor tests, and 31 completed the four caloric irrigations. MS susceptibility was evaluated with the Motion Sickness Susceptibility Questionnaire–Short Form; in this study, percent susceptibility ranged from 0% to 100% in the participants. Participants were divided into three susceptibility groups (Low, Mid, and High). Repeated-measures analyses of variance and pairwise comparisons determined significance among the groups on the VNG test results. Results Oculomotor test results revealed no significant differences among the MS susceptibility groups. Caloric stimuli elicited responses that were correlated positively with susceptibility to MS. Slow-phase velocity was slowest in the Low MS group compared to the Mid and High groups. There was no significant asymmetry between ears in any of the groups. Conclusions MS susceptibility was significantly and positively correlated with caloric slow-phase velocity. Although asymmetries between ears are purported to be associated with MS, asymmetries were not evident. Susceptibility to MS may contribute to interindividual variability of caloric responses within the normal range.

Item Context and /s/ Phone Articulation Test Results

1972 ◽  
Vol 15 (4) ◽  
pp. 852-860 ◽  
Author(s):  
Zoe Zehel ◽  
Ralph L. Shelton ◽  
William B. Arndt ◽  
Virginia Wright ◽  
Mary Elbert
Keyword(s):  
Test Score ◽  
Sound Production ◽  
Broad Context ◽  
Test Results ◽  
Production Task ◽  
Test Result

Fourteen children who misarticulated some phones of the /s/ phoneme were tape recorded articulating several lists of items involving /s/. The lists included the Mc-Donald Deep Test for /s/, three lists similar to McDonald’s but altered in broad context, and an /s/ sound production task. Scores from lists were correlated, compared for differences in means, or both. Item sets determined by immediate context were also compared for differences between means. All lists were found to be significantly correlated. The comparison of means indicated that both broad and immediate context were related to test result. The estimated “omega square” statistic was used to evaluate the percentage of test score variance attributable to context.

The Labeling Problem in Aphasia

1986 ◽  
Vol 51 (2) ◽  
pp. 176-180 ◽  
Author(s):  
Audrey L. Holland ◽  
Davida Fromm ◽  
Carol S. Swindell
Keyword(s):  
Speech Disorders ◽  
Case Description ◽  
Test Results ◽  
Apraxia Of Speech ◽  
Poor Agreement ◽  
Motor Speech ◽  
Motor Speech Disorders ◽  
Communication Difficulties ◽  
Token Test ◽  
Primary Problem

Twenty-five "experts" on neurogenic motor speech disorders participated in a tutorial exercise. Each was given information on M, a patient who had communication difficulties as the result of stroke, and asked to complete a questionnaire about his problem. The information included a detailed case description, an audiotape of M's speech obtained at 4, 9, 13, and 17 days post-stroke, and test results from the Western Aphasia Battery, the Token Test, and a battery for apraxia of speech. The experts were in excellent agreement on M's primary problem, although it was called by seven different names. The experts were in poor agreement on his secondary problem(s), e.g., the presence and type of aphasia and dysarthria. The results suggest that labeling is difficult, even for "experts." Furthermore, the practicing clinician needs to be sensitive to the likelihood of more than one coexisting problem.

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