Results 51 to 60 of about 2,146,528 (354)

Ira Spring Family Hike, Cascade Pass, approximately 1953 (clip 2) [PDF]

open access: yes, 1953
Scenes of the Spring family preparing for a backpack trip in Cascade Pass. Features Ira and Pat Spring and their children John and Vicky Spring. The family begins hiking and later sets up camp.

core  

Beam Finite Element Model Modification Considering Shear Stiffness: Octet-Truss Unit Cell with Springs

open access: yesApplied Sciences
This study investigates the effects of modifying a beam model for octet-truss lattice structures to calculate the homogenized material properties using the average stress method.
Soheil Gholibeygi   +2 more
doaj   +1 more source

The spring of internal combustion engine valve mechanism

open access: yesResearch in Agricultural Engineering, 2004
This article deals with computational research of piston engine valve train including helical spring with variable number of active coils. This engine is destined for passenger car and therefore is featured by wide range of operational speed.
J. Honců
doaj   +1 more source

Utilisation of rheological models for describing the mechanical behaviour of oil palm empty fruit bunches under compression loading

open access: yesResearch in Agricultural Engineering, 2023
This study uses rheological models to describe the mechanical behaviour of oil palm empty fruit bunches (EFB) under compression loading. The oil palm empty fruit bunches were obtained from North Sumatra, Indonesia.
Tomáš Saller, David Herák
doaj   +1 more source

Natural Killer Cells in Paediatric Soft Tissue Sarcomas: A Systematic Review

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Paediatric soft tissue sarcomas (pSTS) are a rare and heterogeneous group of malignant tumours arising in tissues of mesenchymal origin. The role of natural killer (NK) cells in pSTS remains poorly understood, with evidence fragmented across small preclinical studies and early‐phase clinical trials.
Raya Dean   +7 more
wiley   +1 more source

Declining global warming effects on the phenology of spring leaf unfolding

open access: yesNature, 2015
Earlier spring leaf unfolding is a frequently observed response of plants to climate warming. Many deciduous tree species require chilling for dormancy release, and warming-related reductions in chilling may counteract the advance of leaf unfolding in ...
Yongshuo H. Fu   +13 more
semanticscholar   +1 more source

Cattle drinking water quality in the cow-calf beef operation in southern Chihuahua, Mexico/Calidad del agua de consumo animal en el sistema vaca-cría del sur de Chihuahua, México

open access: yesEcosistemas y Recursos Agropecuarios, 2017
Despite the key role of water in livestock growth and reproduction, there is little information on water quality for Mexicos beef cattle ranches.
Rubén Alfonso Saucedo-Terán   +4 more
doaj   +1 more source

On Hooke’s Rule of Nature

open access: yesІсторія науки і техніки, 2022
Lectures de Potentia Restitutiva or Of Spring: Explaining the Power of Springing Bodies (1678) is an important book for the history of science. This book is better known for Hooke’s presentation of the law that bears his name.
Isadora Monteiro
doaj   +1 more source

A Bibliometric Analysis of Publications in Uremic Toxins From 1991 to 2024

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Uremic toxins are a growing area of research in nephrology, with significant implications in the progression and treatment of chronic kidney disease (CKD) and the management of end‐stage kidney disease (ESKD). This bibliometric analysis aims to evaluate the global research trends, key contributors, and the impact of publications in ...
Yuh‐Shan Ho   +7 more
wiley   +1 more source

SPRING: a kinetic interface for visualizing high dimensional single-cell expression data

open access: yesbioRxiv, 2017
Motivation Single-cell gene expression profiling technologies can map the cell states in a tissue or organism. As these technologies become more common, there is a need for computational tools to explore the data they produce.
Caleb Weinreb   +2 more
semanticscholar   +1 more source

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