Results 41 to 50 of about 2,481,809 (253)

Chemometric discrimination of geographical variations in Litsea cubeba essential oils based on their chemical compositions and antioxidant activities

open access: yesApplied Food Research
The Litsea cubeba essential oil (LcEO) gains increasing attention as an important natural spice for food, flavor and fragrance industries. The chemical composition of LcEO determines its bioactivity and varies from provenance to provenance of the plant ...
Ziliang Song   +3 more
doaj   +1 more source

Development of an Inchworm‐Like Dual‐Balloon‐Assisted Colonoscopic Robot Based on a Two‐Segment Extensible Continuum Section

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents an inchworm‐like dual‐balloon‐assisted colonoscopic robot (IDCR) based on a rod‐driven two‐segment continuum section. The IDCR enables the active straightening of the sigmoid colon through an inchworm‐like locomotion strategy, thereby avoiding loop formation.
Dezhi Song   +4 more
wiley   +1 more source

Interbody Wire for Reconfigurable Robots: Bridging Integrated Morphological Reconfiguration and Distributed Wire‐Mediated Cooperation

open access: yesAdvanced Intelligent Systems, EarlyView.
TwinX shows how a single interbody wire connecting two robots can support both integrated morphological reconfiguration and distributed wire‐mediated cooperation. When the robots dock, they reconfigure into different forms for locomotion and manipulation.
Shintaro Inoue   +5 more
wiley   +1 more source

Origin, evolution and biogeographic dynamics of the European rabbit (Oryctolagus cuniculus) in Southwestern Europe

open access: yesThe Anatomical Record, EarlyView.
Abstract The Pleistocene is a key period for understanding the evolutionary history and palaeobiogeography of the European rabbit (Oryctolagus cuniculus). The species was first documented in southeastern Iberia at the beginning of the Middle Pleistocene and appears to have rapidly spread throughout Southwestern Europe, where it was found in numerous ...
Maxime Pelletier
wiley   +1 more source

Using Extended Parallel Process Model (EPPM) to improve seat belt wearing among drivers in Tehran, Iran

open access: yesPayesh, 2016
Objective (s): Iran is among countries with high road traffic accidents. The use of safety belts is known as the most effective in preventing severity of injuries and deaths caused by road accidents.
Fatemeh Sadeghnejad   +3 more
doaj  

Exceptional preservation informs the paleobiology of tapinocephalid dinocephalians

open access: yesThe Anatomical Record, EarlyView.
Abstract The tapinocephalid dinocephalian Moschops is one of the most iconic taxa of the middle Permian, yet its paleobiology remains one of the least well‐known. Here, we address some aspects of paleoneurology and paleobiology of Moschops using CT scanning of four well preserved skulls from the upper Abrahamskraal Formation of South Africa. Two of the
Julien Benoit   +6 more
wiley   +1 more source

Mold Flow Analysis and Method of Injection Molding Technology of Safety Belt Outlet Cover

open access: yesEngineering Proceedings
We have improved the efficiency of the protection of occupants of cars by effectively reducing the injury and mortality rate caused by accidents when using safety belts.
Hao Jia   +4 more
doaj   +1 more source

Exploring interactions of the dimensions of agency through the experiences of aspiring school leaders in Scotland, UK

open access: yesBritish Educational Research Journal, EarlyView.
Abstract Agency has increasingly become a central concept in educational leadership research, yet its application to those preparing to enter school leadership roles remains underexplored. Drawing on the conceptual framework of the ecological approach to teacher agency, we explored how and in what ways aspiring school leaders in Scotland (n = 21 ...
Romina Madrid Miranda   +2 more
wiley   +1 more source

Research on intelligent monitoring system of mine-used belt conveyor

open access: yesGong-kuang zidonghua, 2020
In view of the friction and heating between conveyor belt and key components such as idlers and rollers, the internal damage and tear of steel conveyor belt, and high running power consumption in operation process of mine-used belt conveyor, an ...
MAO Qinghua   +4 more
doaj   +1 more source

From transmission error measurement to Pulley-Belt slip determination in serpentine belt drives: influence of tensioner and belt characteristics [PDF]

open access: yes, 2007
Serpentine belt drives are often used in front end accessory drive of automotive engine. The accessories resistant torques are getting higher within new technological innovations as stater-alternator, and belt transmissions are always asked for higher ...
Dufour, Regis   +3 more
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