Results 101 to 110 of about 2,170 (266)

Thermoplastic‐Resin Transfer Molding Technology: Development and Challenges Toward Industrialization

open access: yesPolymer Composites, EarlyView.
Illustration of the key aspects involved in the manufacture of thermoplastic composites by T‐RTM highlighting the relationships between raw materials, resin mixing strategies, polymerization parameters, and processing equipment ranging from laboratory to industrial scale. ABSTRACT Driven by increasingly stringent international environmental regulations,
Filipe P. Martins   +4 more
wiley   +1 more source

Simulation of Generation Process for Asymmetric Involute Gear Tooth Shape with and without Profile Correction

open access: yes, 2012
In order to achieve any design study on a gear tooth or to carry out any type of analysis on a complete gear drive, the first step is the representation of the actual form of this tooth under consideration.
Abdullah, Mohammad Qasim
core   +1 more source

Outracing a National Level Model Racing Car Champion: A Hybrid Model‐Based Data‐Driven Approach

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This paper discusses lap time optimization, focusing on a single lap without considering opponents in autonomous racing. The paper presents a control and optimization architecture composed of a model‐based low level controller and a higher level iterative learning algorithm with the goal of obtaining the fastest qualifying lap in autonomous ...
Mustafa Alp   +3 more
wiley   +1 more source

ESG Debt Issued by Regional Governments in Spain: Financing Sustainable Development or Usual Public Expenditure?

open access: yesSustainable Development, EarlyView.
ABSTRACT Sustainable debt bond is an emerging instrument aiming at providing companies and governments with extra resources for financing social and environmental policies and attempting to make progress on the Sustainable Development Goals. Regional governments in Spain have issued sustainable bonds in recent years to finance different spending ...
Alberto Turnes   +2 more
wiley   +1 more source

Enhancing Design Features of Asymmetric Spur Gears Operating on a Specified Center Distance Using Tooth Sum Altered Gear Geometry

open access: yes, 2021
Asymmetric gears have evolved from the rising demand for power transmission drives with high load-carrying capacity, surface durability, and service life.
Dsa, Avil Allwyn, Gonsalvis, Joseph
core   +1 more source

Security Shaping Sustainability: The Difference Between Securitized and Community‐Based Conservation in Benin

open access: yesSustainable Development, EarlyView.
ABSTRACT As global conservation efforts intensify, balancing environmental protection with social sustainability has become increasingly urgent. This study employs a comparative case study approach to examine two natural resource management interventions in northern Benin: one led by African Parks in an insecure zone, and another by TMG Research in a ...
Ramoudane Orou Sannou   +1 more
wiley   +1 more source

Analysis of Dynamics Characteristic of the Helical Gear Transmission in Helicopter

open access: yesJixie chuandong, 2015
The multiaxial helical gear transmission is widely used in helicopter for parallel operation. The dynamics model of the helical gear transmission is established for system inherent characteristic analysis,and the dynamic response is obtained.
Liu Tao, Li Jie, Dai Jinchun
doaj  

Spontaneous unidirectional rotation of a symmetric gear driven by spherical active particles

open access: yesNational Science Open
Time reversal asymmetry and spatial anisotropy are considered two prerequisites for Brownian ratchet. An intriguing realization can be achieved by placing an asymmetric gear in the suspension of motile rod-like bacteria.
Wang Chao   +4 more
doaj   +1 more source

INVESTIGATION OF GEARS WITH ASYMMETRIC PROFILE USING RELIABILITY PARAMETERS

open access: yesUkrainian Journal of Mechanical Engineering and Materials Science
The results of the study of gears with involute and sinusoidal teeth are presented herein. The subjects of the comparative analysis were the stresses at the root of the tooth from the side of the applied load and from the side of the unloaded profile, contact stresses, and elastic deformations under the action of a given torque.
Ihor Hrytsai, Vasyl Verhun
openaire   +2 more sources

Selection of Pressure Angle based on Dynamic Effects in Asymmetric Spur Gear with Fixed Normal Contact Ratio

open access: yes, 2019
Asymmetric spur gears are finding application in many fields including aerospace propulsion and automobile which demand unidirectional or relatively higher load on one side of the gear flank.
Sankaranarayansamy, K.   +3 more
core   +2 more sources

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