Results 71 to 80 of about 2,413,300 (321)

The Hazen Mammoth (Mammuthus columbi), Prairie County, Arkansas [PDF]

open access: yes, 1974
In May 1965, mammoth remains were exposed during the excavation of a borrow pit for construction of Interstate Highway 40, 2 mi northeast of Hazen, Prairie County, Arkansas.
Puckette, William L., Scholtz, James A.
core   +2 more sources

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

open access: yesAdvanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim   +17 more
wiley   +1 more source

About Calculation and Experimental Estimation of Working Capacity of Ball Joints of a Vehicle Chassis. Part 2. Calculation by Wear Resistance Criterion and Experimental Determination of Characteristics of Wear-Fatigue Damage

open access: yesМеханика машин, механизмов и материалов, 2019
The ball joints of vehicles are referred to the steering and suspension critical units. Strength calculation of the ball pin under static loading is usually performed in the practice of designing these units.
Alexander V. Bogdanovich
doaj  

Preliminary study of friction in automotive ball joints

open access: yesIOP Conference Series: Materials Science and Engineering, 2020
Abstract The present paper offers a brief description of the testing equipment, experimental methodology and some results regarding the motion resistive effort in automotive ball joints. The local ball joints manufacturers have difficulties in controlling the clamping force of the ball joints in the production process.
I Muscă, I C Românu, A Gagea
openaire   +1 more source

Laser space rendezvous and docking system trade-off study [PDF]

open access: yes
The use, design, and fabrication feasibility of scanning the laser beam by swiveling the outside mirror with a ball joint swivel system is examined along with the applicability of graphite reinforced epoxy material for the construction of reflective ...
Adelman, S., Levinson, S.
core   +1 more source

POM‐Based Water Splitting Catalyst Under Acid Conditions Driven by Its Assembly on Carbon Nanotubes

open access: yesAdvanced Materials, EarlyView.
A newly‐engineered POM‐based electrocatalyst incorporating non‐innocent counter cations exhibits fast kinetics for either the OER or HER under strongly acidic conditions (1 m H2SO4), depending on whether it is assembled on carbon nanotubes (1@CNT) or physically mixed with them (1/CNT). In water‐splitting tests using a two‐electrode setup, these systems
Eugenia P. Quirós‐Díez   +8 more
wiley   +1 more source

About Calculation and Experimental Estimation of Working Capacity of Ball Joints of a Vehicle Chassis. Part 1. Calculation by Srength Criterion

open access: yesМеханика машин, механизмов и материалов, 2019
The ball joints of vehicles are referred to the steering and suspension critical units. Strength calculation of the ball pin under static loading is usually performed in the practice of designing these units.
Alexander V. Bogdanovich
doaj  

Dynamics Performance and Abrasive Wear of the Automotive Drive Shaft

open access: yesAdvances in Mechanical Engineering, 2014
An automotive drive shaft is used in a front drive transmission vehicle for transmitting rotary movement from the gearbox output shaft to the wheels with a constant velocity.
Jian Mao, Yuanxin Luo, Jun Liu
doaj   +1 more source

Development and Verification of Mechanism for Enhancement of Steering Angle and Active Locomotion for Magnetic Micro Active-Guidewire

open access: yesIEEE Access, 2020
In this study, the authors developed a novel active guidewire including a spiral-type magnetic microrobot and ball joint to realize active locomotion and improve the steering capability within external magnetic fields. Most active guidewires provide only
Guk-Hong Jeon, Sung Hoon Kim
doaj   +1 more source

Spherical shield Patent [PDF]

open access: yes, 1965
Flexible bellows joint shielding sleeve for propellant transfer ...
Noreen, S. J., Pfleger, R. O.
core   +1 more source

Home - About - Disclaimer - Privacy