Results 61 to 70 of about 30,356 (218)

Calculation of the profile tooth worm with conditions uniformity rotation gears [PDF]

open access: yes, 2012
Розроблено методику розрахунку профілю зуба черв’яка за умови рівномірності обертання зубчастого колеса. Розроблено методику побудови графіка огинаючої лінії, що описує геометричне місце точок контакту профілю поверхні черв’яка з черв’ячним колесом ...
Gevko, R.   +5 more
core  

Maneuverable Multilegged Locomotion through Anisotropically Arranged Soft Backbones in a Single‐Actuator Modular Miniature Robot

open access: yesAdvanced Intelligent Systems, EarlyView.
A modular eight‐legged robot exploits anisotropically oriented soft I‐beam backbones to transmit vibration from a single unbalanced‐mass actuator, producing frequency‐dependent multimodal gaits. A pseudo‐rigid‐body model enables high‐fidelity MuJoCo simulation, while Bayesian parameter identification and reinforcement learning yield robust control ...
Yiğit Yaman   +4 more
wiley   +1 more source

Design of the Initiative Parameterization Accurate 3D Model of ZA Worm gear and Worm

open access: yesJixie chuandong, 2015
The tooth surface of worm gear of ZA-type worm gear and worm transmission is spatial conjugate surface of complex worm cylindrical spiral surface,the mathematical equations describing of the worm gear tooth surface is complex,parametric accurate modeling
Liu Guangwu   +2 more
doaj  

Modern mechanisms make manless Martian mission mobile: Spin-off spells stairclimbing self-sufficiency for earthbound handicapped [PDF]

open access: yes, 1975
Concepts were developed for three wheel chairs from progressively improving designs of a proposed unmanned roving vehicle for the surface exploration of Mars; as a spin-off, a concept for a stair-climbing wheel chair was generated.
Hassel, D. R.   +2 more
core   +1 more source

A rotating cavity for high-field angle-dependent microwave spectroscopy of low-dimensional conductors and magnets

open access: yes, 2005
The cavity perturbation technique is an extremely powerful method for measuring the electrodynamic response of a material in the millimeter- and sub-millimeter spectral range (10 GHz to 1 THz), particularly in the case of high-field/frequency magnetic ...
Bonn D. A.   +13 more
core   +1 more source

T. rex cognition was T. rex‐like—A critical outlook on diverging views of the neurocognitive evolution in dinosaurs

open access: yesThe Anatomical Record, EarlyView.
Abstract A recent debate has emerged between Caspar et al. (2024) and Herculano‐Houzel (2023) on inferring extinct dinosaur cognition by estimating brain neuron counts. While thought‐provoking, the discussion largely overlooks the function of cognition, as well as partly neglects the difficulties involved in estimating neuron numbers, which according ...
Thomas Rejsenhus Jensen   +7 more
wiley   +1 more source

双导程蜗轮滚刀加工及分析

open access: yesJixie chuandong, 2012
The characteristics of double load worm gear hob is explained,the double load worm gear hob process flow meets the requirements of the pattern is designed,the in-depth analysis and serious summary on the main process to ensure the double load worm gear ...
赵云
doaj  

Machine Design Experiments Using Gears to Foster Discovery Learning [PDF]

open access: yes, 2015
Machine Design Experiments Using Gears to Foster Discovery Learning For the typical undergraduate engineering student the topic of gears is introduced and discussed in several courses.
Nagurka, Mark L.   +1 more
core   +1 more source

A review of the historic and present ecological role of aquatic and shoreline wood, from forest to deep sea

open access: yesBiological Reviews, EarlyView.
ABSTRACT The ecology of forests, their losses, and terrestrial wood decomposition dynamics have been intensively studied and reviewed. In the aquatic realm, reviews have concentrated on large wood (LW) in rivers and the transition from freshwater to marine environments in the Pacific Northwest of North America. However, a comprehensive global synthesis
Jon Dickson   +9 more
wiley   +1 more source

GEOMETRIC DESIGN OF CROWN WORM GEAR WITH STRAIGHT-LINED BLADE PROFILE

open access: yesRekayasa Mesin
Applications for worm gear drives are common in industry. The crown worm drive is a new kind of inventive worm drive that has just been proposed. Nevertheless, no prior research has been done on the geometric design of crown worm gears with straight ...
Moeso Andrianto   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy