scholarly journals Study and Assessment of Propulsion Systems of Three-Wheeled Electric Powered Rickshaw in India

2021 ◽  
Vol 9 (8) ◽  
pp. 1111-1117
Keyword(s):  
Automobile Industry ◽  
Building Materials ◽  
Propulsion System ◽  
Propulsion Systems ◽  
Ic Engine ◽  
Crucial Step ◽  
Power Drive ◽  
Metropolitan Cities ◽  
Vital Component ◽  
Selection Of

India is one of the prominent manufacturers in the automobile industry with 30 Million of vehicles production rate. Most of vehicles manufactured in India utilize internal combustion power drive methodology. Additionally, pollutions, global warming, conventional fuels exhaustion and loss of building materials are the major concerns associated with IC engine technology. Electric drive technology has the potential to mitigate these issues. Three-wheeled (3-W) battery powered rickshaws/vehicles are primarily employed for public conveyance in the metropolitan cities of India. The motor (propulsion) is a vital component of 3-W battery powered rickshaw. But, selection of appropriate propulsion system for 3-W rickshaw is crucial step. In the present study, an exertion has been prepared to assess the correct propulsion system for 3-W battery powered vehicle in Indian contest.

scholarly journals Propulsion System Evaluation for an Unmanned High Altitude Long Endurance RPV

1991 ◽  
Author(s):  
Edward J. Kowalski ◽  
Norman C. Baullinger ◽  
Jennifer Kolden
Keyword(s):  
High Altitude ◽  
Propulsion System ◽  
Spark Ignition Engine ◽  
System Evaluation ◽  
Propulsion Systems ◽  
Atmospheric Sampling ◽  
Turboshaft Engine ◽  
Long Endurance ◽  
Rescue Drug ◽  
Selection Of

Unmanned High-Altitude Long-Endurance (HALE) aircraft have been studied for several years. Reconnaissance, surveillance, search and rescue, drug interdiction, atmospheric sampling, etc. are a few of the potential missions for HALE aircraft. One of the pacing technology items for an aircraft of this type is the propulsion system. This paper will discuss three candidate propulsion systems: a turbocompounded spark ignition engine, a recuperative turboshaft engine and a turbocharged turbocompounded diesel-turbine. HALE mission requirements dictate that certain parameters influence the selection of the propulsion system: propulsion system weight per horsepower, brake specific fuel consumption (lb/hr/shp), and reliability.

Letter Verbal Fluency in Spanish-, Basque-, and Catalan-Speaking Individuals: Does the Selection of the Letters Influence the Outcome?

2019 ◽  
Vol 62 (7) ◽  
pp. 2400-2410
Author(s):  
Laiene Olabarrieta-Landa ◽  
Itziar Benito-Sánchez ◽  
Montserrat Alegret ◽  
Anna Gailhajanet ◽  
Esther Landa Torre ◽  
...  
Keyword(s):  
Frontal Lobe ◽  
Verbal Fluency ◽  
Native Language ◽  
Spanish Speakers ◽  
Crucial Step ◽  
Verbal Fluency Test ◽  
Performance Differences ◽  
Frontal Lobe Functioning ◽  
Selection Of ◽  
Fluency Test

Purpose The aim of this study was to compare Basque and Catalan bilinguals' performance on the letter verbal fluency test and determine whether significant differences are present depending on the letters used and the language of administration. Method The sample consisted of 87 Spanish monolinguals, 139 Basque bilinguals, and 130 Catalan bilinguals from Spain. Participants completed the letter verbal fluency test using the letters F, A, S, M, R, P, and E. Results Bilinguals scored higher on the letter verbal fluency test when they were tested in Spanish than in Basque or Catalan. No performance differences were found according to native language or dialects within Basque participants. Catalans with Spanish as their native language scored lower on the letter F compared to those who grew up speaking Catalan and Spanish. The suggested letters to use with Basque speakers are A, E, and B; the suggested letters to use with Catalan speakers are P, F, and M; and the suggested letters to use with Spanish speakers are M, R, and P. Conclusion Selecting appropriate stimuli depending on the language of testing is the first crucial step to assess verbal fluency and thus possible frontal lobe functioning impairment.

Proposal of a Simplified Environmental Assessment Method Based on Major Building Materials for School Buildings in Korea

2014 ◽  
Vol 905 ◽  
pp. 353-356
Author(s):  
Seung Jun Roh ◽  
Sung Ho Tae
Keyword(s):  
Environmental Impact ◽  
Impact Assessment ◽  
Environmental Impact Assessment ◽  
Building Materials ◽  
Assessment Method ◽  
School Buildings ◽  
Detailed Assessment ◽  
Impact Assessment Method ◽  
Assessment Result ◽  
Selection Of

The purpose of this study is to propose a simplified environmental impact assessment method based on selection of major building materials for school buildings in Korea. To accomplish this, environmental impact of 2 school buildings constructed in Korea was assessed according to the procedure of life cycle assessment. In addition, major building materials of school buildings were selected from the perspective of 6 environmental impact categories based on the assessment result, and a method of simplified environmental impact assessment was suggested. On one hand, case analysis verified applicability of the simplified environmental impact assessment method proposed in this study by showing similar value within 10% compared to the assessment result from existing detailed assessment.

Selection of an Optimized Integrated Propulsion System

1981 ◽  
Vol 18 (6) ◽  
pp. 499-505 ◽  
Author(s):  
H. Macklis ◽  
R.L. Sackheim ◽  
B. Vogt
Keyword(s):  
Propulsion System ◽  
Selection Of

ON THE DEVELOPMENT OF TESTING FACILITIES FOR THE SCIENTIFIC TEST-ING CENTER OF THE ROCKET AND SPACE INDUSTRY FOR DEVELOPMENTAL TESTING OF ADVANCED CRYOGENIC PROPULSION SYSTEMS

2021 ◽  
pp. 88-97
Author(s):  
Nikolay P. SIZYAKOV ◽  
Igor A. YURIEV ◽  
Ayvengo G. GALEEV
Keyword(s):  
Propulsion System ◽  
Test Facility ◽  
Launch Vehicles ◽  
Propulsion Systems ◽  
Safety Measures ◽  
Experimental Development ◽  
Space Industry ◽  
Calculation Results ◽  
Testing Center ◽  
Scientific Testing

The paper provides a review of materials on the development of testing facilities in the Scientific Testing Center of the Rocket and Space Industry and the issues involved in raising the efficiency and safety of experimental development of advanced cryogenic propulsion systems for launch vehicles intended for exploration of the near and deep space. It shows that the most dangerous tests are those that are conducted on engines and propulsion systems that use oxygen, methane and hydrogen as propellant components. They may involve containment failure in the propellant system in off-nominal situations — emergency releases of propellant components, explosions and fires. It provides calculation results for overpressure in the shock-wave front depending on the mass of the released hydrogen and the factor of its contribution to the explosion. It formulates special and additional safety measures for engine and propulsion system tests in a test facility. Key words: test facility (test stand), propulsion system, safety, off-nominal situation, cryogenic propellant components.

On the development of testing facilities for the scientific testing center of the rocket and space industry for developmental testing of advanced cryogenic propulsion systems

2021 ◽  
pp. 88-97
Author(s):  
Nikolay P. SIZYAKOV ◽  
Igor A. YURIEV ◽  
Ayvengo G. GALEEV
Keyword(s):  
Propulsion System ◽  
Test Facility ◽  
Launch Vehicles ◽  
Propulsion Systems ◽  
Safety Measures ◽  
Experimental Development ◽  
Space Industry ◽  
Calculation Results ◽  
Testing Center ◽  
Scientific Testing

The paper provides a review of materials on the development of testing facilities in the Scientific Testing Center of the Rocket and Space Industry and the issues involved in raising the efficiency and safety of experimental development of advanced cryogenic propulsion systems for launch vehicles intended for exploration of the near and deep space. It shows that the most dangerous tests are those that are conducted on engines and propulsion systems that use oxygen, methane and hydrogen as propellant components. They may involve containment failure in the propellant system in off-nominal situations — emergency releases of propellant components, explosions and fires. It provides calculation results for overpressure in the shock-wave front depending on the mass of the released hydrogen and the factor of its contribution to the explosion. It formulates special and additional safety measures for engine and propulsion system tests in a test facility. Key words: test facility (test stand), propulsion system, safety, off-nominal situation, cryogenic propellant components.

The Design of Water-Jet Propulsion Systems for Hydrofoil Craft

1965 ◽  
Vol 2 (01) ◽  
pp. 15-25
Author(s):  
Joseph Levy
Keyword(s):  
Water Jet ◽  
Propulsion System ◽  
Specific Design ◽  
Propulsion Systems ◽  
Propulsive Efficiency ◽  
Jet Propulsion ◽  
Performance Curves

This paper contains a brief description of the water-jet propulsion system as applied to hydrofoil craft, and a discussion of the salient hydrodynamic aspects of the problem of fitting the main propulsion system to the specified thrust-versus-speed requirements. The factors that affect the overall propulsive efficiency and the weight of the system are discussed at some length; procedures for optimization of performance at the design cruising speed are outlined; finally, the processes by which the performance at off-design conditions may be evaluated are discussed and illustrated with performance curves for one specific design.

Esther Simpson: A Correspondence

2011 ◽  
Author(s):  
Paul Broda
Keyword(s):  
The State ◽  
Human Retina ◽  
Academic Assistance ◽  
The World ◽  
Long Time ◽  
Vital Component ◽  
Selection Of ◽  
Musical Activities

Among the hundreds of Austrian refugees who arrived in Britain in 1938 after Hitler annexed Austria was the author's father, Engelbert Broda, who shortly afterwards was joined by his wife Hildegard. Engelbert Broda later made contact with the Society for the Protection of Science and Learning (SPSL), and it was through Esther Simpson, the long-time Secretary of the SPSL, that Charles Goodeve took him on to work on visual purple (rhodopsin), a vital component of the human retina. This chapter presents a selection of letters between Esther Simpson and Engelbert Broda. The extracts given here relate to the foundation of the Academic Assistance Council, Esther Simpson's beliefs, Engelbert Broda's memories much later of what her help had meant to him personally, and the state of the world. Other regular topics are their work, her musical activities, and the comings and goings of mutual friends including L. Kowarski, J. Guéron, and O. R. Frisch, all of whom they knew from Cambridge days. The emphasis in this selection is in representing Esther Simpson's own attitudes and achievements in her own words.

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