Results 51 to 60 of about 17,794 (305)

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

open access: yesBiological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief   +4 more
wiley   +1 more source

A common formula for the combined torsional mesh stiffness of spur gears [PDF]

open access: yes, 2007
This paper presents the results of a detailed two-dimensional analysis of the torsional stiffness of several pairs of spur gears in mesh using finite element methods.
Howard, Ian, Kiekbusch, Timo
core  

Modelling of Elastic Gearboxes Using a Generalized Gear Contact Model [PDF]

open access: yes, 2012
The object of this paper is to present an universal model that describes the gear contact between two gears in a planar environment. The model includes elastic effects between the gear wheels.
van der Linden, Franciscus
core   +1 more source

Circular Design Strategies Unleashed: Competitiveness and the Journey Towards Circular Manufacturing Businesses

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The transition to a circular economy (CE) remains hindered by the lack of practical strategies that simultaneously secure competitiveness and deliver sustainability outcomes for manufacturing organisations. While circular design is often cited as a cornerstone of CE, its concrete role in driving competitive advantage and organisational ...
Shamaila Ishaq   +3 more
wiley   +1 more source

Surface fatigue life of CBN and vitreous ground carburized and hardened AISI 9310 spur gears [PDF]

open access: yes
Spur gear surface endurance tests were conducted to investigate CBN ground AISI 9310 spur gears for use in aircraft applications, to determine their endurance characteristics and to compare the results with the endurance of standard vitreous ground AISI ...
Patel, P. R., Townsend, Dennis P.
core   +1 more source

AI‐Enabled Circular Business Model Transition for Mitigating Climate Change: A Natural Resource‐Based View Perspective on Business Strategies

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The role of artificial intelligence (AI) in achieving sustainability goals has garnered attention in academic literature. While AI has been argued to be crucial in addressing circularity challenges, organizations face challenges in configuring a business model.
Jian Wang   +4 more
wiley   +1 more source

Asstem of Corrected Spur Gears.

open access: yesJournal of the Society of Mechanical Engineers, 1945
小齒車及び大齒車の曲げに對する強度を等しくすれば, この一對の齒車は動力傳逹用として最も望ましいものとなる.斯る條件を滿足する如く轉位係數を選擇する方法として, 齒形の隅肉を形成する二つのトロコイド曲線間の最短距離Sを, 同一材料から成る齒車對では相等しくなる如く, 又異なる材料の齒車對ではS2が材料の縱彈性率に反比例する如くとることを提案してある.Sの値が異なれば, 同一齒數の一對の齒車に對し, 種々異なる性質のものが出來る譯であるから, 斯る轉位齒車群の噛合性能圖を作製し, 中心距離又は使用目的により轉位係數の最後的決定をなす轉位平齒車の一方式に就て述べてある.尚壓力角αc=14°30′及びαc=20°の標準ラック型カッタに對し, 轉位係數の選擇に必要な圖表及び計算例をも示してある.
openaire   +2 more sources

How Do Carbon Emissions Affect the Performance of Listed Latin American Firms? The Moderating Effect of Financial Slack

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study analyses the association between carbon emissions and financial performance in Latin American firms. The scientific literature on this topic is limited, with little evidence available in this geographical region. This study aims to address this research gap by testing hypotheses focused on analysing how Scope 1, 2 and 3 carbon ...
Ana Isabel Mendieta‐Callirgos   +3 more
wiley   +1 more source

CALCULATION OF THE STRESSES ON THE WORKING SURFACE OF THE TEETHES OF OBLIQUE ANGLE SPUR GEARS

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2015
In the paper, the questions of analysis of the teethes of oblique angle spur gears are con- sidered. Specify calculation of the contact tension on the working surface of the teethes of oblique angle spur gears are leaded.
Yu V Belousov
doaj  

An analytical method to predict efficiency of aircraft gearboxes [PDF]

open access: yes
A spur gear efficiency prediction method previously developed by the authors was extended to include power loss of planetary gearsets. A friction coefficient model was developed for MIL-L-7808 oil based on disc machine data. This combined with the recent
Anderson, N. E.   +2 more
core   +1 more source

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