scholarly journals Comparison of Vehicle Efficiency Technology Attributes and Synergy Estimates

2011 ◽  
Author(s):  
G. Duleep
Keyword(s):  
Vehicle Efficiency ◽  
Technology Attributes

scholarly journals The heat is off! The role of technology attributes and individual attitudes in the diffusion of Smart thermostats – findings from a multi-country survey

2020 ◽  
pp. 120508
Author(s):  
Gengyang Tu ◽  
Corinne Faure ◽  
Joachim Schleich ◽  
Marie-Charlotte Guetlein
Keyword(s):  
Technology Attributes

Driving Schedules Influence Electric and Hybrid Vehicle Efficiency

1999 ◽  
Author(s):  
Floyd A. Wyczalek
Keyword(s):  
Hybrid Vehicle ◽  
Vehicle Efficiency

Driveline Configuration and Terrain Effect on Slippage and Efficiency of a 6×6/6×4 Truck

2013 ◽  
Author(s):  
Vladimir V. Vantsevich ◽  
Dennis Murphy ◽  
Gianantonio Bortolin ◽  
Blair Farley ◽  
Gabriel Judd
Keyword(s):  
Energy Efficiency ◽  
Analytical Method ◽  
Power Distribution ◽  
Operating Conditions ◽  
Surface Type ◽  
Vehicle Efficiency ◽  
Terrain Effect ◽  
Truck Transportation

The power distribution between driving wheels has been shown to have a significant impact on vehicle energy efficiency, but there has only been limited research in this area. As shown in this paper, the wheel power distribution is largely dependent on the power dividing units (PDUs) which split/vector power between the driving wheels. The performance of a particular driveline system will also depend largely on the terrain conditions the vehicle encounters. This paper presents an analysis of PDU configurations in 6×6/6×4 terrain trucks. The vehicle efficiency is evaluated in a wide variety of typical operating conditions including varying surface types, speeds and accelerations, and slope conditions. An analytical method is presented which can be used to determine the tire circumferential forces and slippages. Finally, an analysis of the effects of the driveline configuration, terrain, and surface type on truck transportation efficiency is presented for three PDU combinations.

Minimum Safety Distances for Emergency Braking Maneuvers in Car-Following Applications

2020 ◽  
Author(s):  
Devin Schafer ◽  
Pingen Chen
Keyword(s):  
Aerodynamic Force ◽  
Lane Change ◽  
Passenger Vehicle ◽  
Lane Changing ◽  
Car Following ◽  
Emergency Braking ◽  
Safety Distance ◽  
Bicycle Model ◽  
Vehicle Efficiency ◽  
Different Types

Abstract Platooning/car following has been considered as a promising approach for improving vehicle efficiency due to the reduction of aerodynamic force when closely following a pilot vehicle. However, safety is a major concern in the close car platooning/following. This paper investigates the minimum inter-vehicle distances required for a passenger vehicle to safely travel behind a heavy-duty truck with three different types of emergency maneuvers. The three emergency maneuvers considered are braking only, steering only, and braking then steering, where steering refers to a single lane change maneuver. Numerical analysis is conducted for deriving the clearance space in the braking only scenario. In addition, simulations are conducted in MATLAB/Simulink, using a bicycle model for the vehicle dynamics, to examine the minimum safe following distance for the other two scenarios. The simulation results show that, for initial vehicle speeds greater than 8 m/s, a lane change maneuver requires the shortest safety distance. Braking followed by lane changing usually requires the largest minimum safety distance.

A New Taxonomy for Technology-Enabled Diabetes Self-Management Interventions: Results of an Umbrella Review

2021 ◽  
pp. 193229682110364
Author(s):  
Deborah A. Greenwood ◽  
Michelle L. Litchman ◽  
Diana Isaacs ◽  
Julia E. Blanchette ◽  
Jane K. Dickinson ◽  
...  
Keyword(s):  
Feedback Loop ◽  
English Language ◽  
Controlled Trial ◽  
Self Management ◽  
Umbrella Review ◽  
Diabetes Outcomes ◽  
Management Interventions ◽  
Meta Analyses ◽  
The Impact ◽  
Technology Attributes

Background: A 2017 umbrella review defined the technology-enabled self-management (TES) feedback loop associated with a significant reduction in A1C. The purpose of this 2021 review was to develop a taxonomy of intervention attributes in technology-enabled interventions; review recent, high-quality systematic reviews and meta-analyses to determine if the TES framework was described and if elements contribute to improved diabetes outcomes; and to identify gaps in the literature. Methods: We identified key technology attributes needed to describe the active ingredients of TES interventions. We searched multiple databases for English language reviews published between April 2017 and April 2020, focused on PwD (population) receiving diabetes care and education (intervention) using technology-enabled self-management (comparator) in a randomized controlled trial, that impact glycemic, behavioral/psychosocial, and other diabetes self-management outcomes. AMSTAR-2 guidelines were used to assess 50 studies for methodological quality including risk of bias. Results: The TES Taxonomy was developed to standardize the description of technology-enabled interventions; and ensure research uses the taxonomy for replication and evaluation. Of the 26 included reviews, most evaluated smartphones, mobile applications, texting, internet, and telehealth. Twenty-one meta-analyses with the TES feedback loop significantly lowered A1C. Conclusions: Technology-enabled diabetes self-management interventions continue to be associated with improved clinical outcomes. The ongoing rapid adoption and engagement of technology makes it important to focus on uniform measures for behavioral/psychosocial outcomes to highlight healthy coping. Using the TES Taxonomy as a standard approach to describe technology-enabled interventions will support understanding of the impact technology has on diabetes outcomes.

Lightweight Feeling - Driving Excitement, Vehicle Efficiency and Costs of BEV in Conflict

2021 ◽  
pp. 592-605
Author(s):  
Georg Schrank ◽  
Martin Arntz ◽  
Christoph Sams
Keyword(s):  
Vehicle Efficiency

scholarly journals The Role of Perceived Smart Tourism Technology Experience for Tourist Satisfaction, Happiness and Revisit Intention

2020 ◽  
Vol 12 (16) ◽  
pp. 6592
Author(s):  
Chen-Kuo Pai ◽  
Yumeng Liu ◽  
Sangguk Kang ◽  
Anna Dai
Keyword(s):  
Structural Equation ◽  
Mainland China ◽  
Practical Significance ◽  
Tourist Satisfaction ◽  
Travel Experience ◽  
Revisit Intention ◽  
Technology Experience ◽  
The Impact ◽  
Technology Attributes ◽  
Smart Tourism

The rapid advancement of smart tourism technology brings new opportunities for tourism development. More travel destinations are relying on smart technology to attract more tourists to visit and enrich their travel experience. The main purpose of this study was to explore whether tourists are satisfied with their smart tourism technology experience (i.e., informativeness, accessibility, interactivity, personalization, and security). This study also investigated the impact of smart tourism technology experience on tourists’ happiness and revisit intention. This study used a structural equation method to find the relationship among smart tourism technology attributes, travel satisfaction, happiness, and revisit intention. Surveys of a total of 527 participants who traveled to Macau from Mainland China were used for the analysis. The results showed that accessibility is the most important factor affecting the smart tourism technology experience and personalization the least. Smart tourism technology experience is shown to be significantly associated with travel experience satisfaction, and travel experience satisfaction has a positive effect on both tourists’ happiness and revisit intention. Finally, tourist happiness is also shown to be positively associated with revisit intention. This study provides theoretical and practical significance for the development of smart tourism in the future.

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