Results 101 to 110 of about 179,350 (249)

Beyond mammals: the evolution of chewing and other forms of oropharyngeal food processing in vertebrates

open access: yesBiological Reviews, EarlyView.
ABSTRACT Oropharyngeal food processing exhibits a remarkable diversity among vertebrates, reflecting the evolution of specialised ‘processing centres’ associated with the mandibular, hyoid, and branchial arches. Although studies have detailed various food‐processing strategies and mechanisms across vertebrates, a coherent and comprehensive terminology ...
Daniel Schwarz   +6 more
wiley   +1 more source

Circular Economy Pathways for Airport Climate Change Mitigation

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Airport operators face growing climate‐change pressures; the circular economy offers pathways to reduce impacts and recover resources. We examine how airport operators apply the circular economy in practice. We use an exploratory qualitative multicase design based on practitioner‐generated documents (e.g., press releases and sustainability ...
Michele Oppioli   +3 more
wiley   +1 more source

Sun tracking solar energy collector [PDF]

open access: yes, 1978
A parabolic reflector is supported so that it can track the sun. The support for this reflector comprises an azimuth frame supported on two wheels and a central pivotal point which are positioned in a substantially triangular configuration. On top of the
Perkins, G. S.
core   +1 more source

All coordinates transformations that separate the center of mass kinetic energy, their group structure and geometry

open access: yes, 2009
The most general coordinates transformations that allow for the exact separation of the kinetic energy operator of a quantum many-body system into total center of mass kinetic energy and internal kinetic energy are found and discussed.
Fortunato, Lorenzo
core   +1 more source

A Taxonomy of Predictive Maintenance as a Basis for Supra‐Regional Sustainability Monitoring—Literature Review

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT The concept of predictive maintenance in advanced manufacturing systems is crucial from the point of view of resource efficiency in the era of high competitiveness forced by energy transformation in the digital economy. Against the backdrop of sustainability and the opportunities a data cooperative offers, the combination of predictive ...
Christian Schachtner   +6 more
wiley   +1 more source

Concept of Thermal Shrinkage-Resistant Railroad Rail for Use in Continuous Welded Rail Track

open access: yesApplied Sciences
This paper presents the concept of a modified 60E1 rail dedicated to continuous welded rail (CWR) track. The presented solution is the subject of a patent application by the authors of the publication.
Jacek Kukulski, Andrzej Ratkiewicz
doaj   +1 more source

Corporate ESG Greenwashing: Does Regulatory Proximity Matter?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Environmental, social, and governance (ESG) greenwashing undermines sustainable development, yet the influence of regulatory proximity on oversight is understudied. By introducing the “distance decay effect” from geoeconomics into ESG misconduct research and using a sample of Chinese listed firms from 2009 to 2022, this study reveals a ...
Weiqi Zhao   +4 more
wiley   +1 more source

Influence Mechanism of Maintenance Rails on Vortex-Induced Vibration of Twin Steel Box Girders

open access: yesZhongwai Gonglu
Maintenance rails are an important passage for the safe operation and maintenance of bridges, significantly affecting the vortex-induced vibration (VIV) performance of main girders.
SUN Hongxin   +3 more
doaj   +1 more source

Defining Remanufacturing: A Key Business Strategy Advancing Industrial Circularity

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Remanufacturing is a key strategy in the circular economy, enabling substantial product value retention. However, inconsistent definitions across standards and legislation hinder global trade, core recovery and market acceptance. This study examines how remanufacturing is defined in laws and standards, and how these definitions impact industry
Erik Sundin   +2 more
wiley   +1 more source

Spiral lead platen robotic end effector [PDF]

open access: yes, 1990
A robotic end effector is disclosed which makes use of a rotating platen with spiral leads used to impact lateral motion to gripping fingers. Actuation is provided by the contact of rolling pins with the walls of the leads.
Beals, David C.
core   +1 more source

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