Results 131 to 140 of about 93,534 (317)

Argon Cold Plasma Modification of Polyethylene Films to Tailor Surface and Barrier Properties

Journal of Applied Polymer Science, EarlyView.
Argon cold plasma treatment of low‐density polyethylene (LDPE) and high‐density polyethylene (HDPE) films induces major changes in surface chemistry and morphology. Contact angles decrease significantly while surface energy increases, improving wettability. FTIR confirms the formation of polar functional groups, while pronounced etching, roughness, and
Aikaterini Spanou, Chrysi Lagkouvardou, Petrina Vogiannou, Vasiliki Korka, Enrico Maurizzi, Ioanna Georgia I. Athanasoulia, Dimitrios Ladakis, Andrea Pulvirenti, Efstathios Z. Panagou, Demetres Briassoulis, Apostolis Koutinas, Theofania Tsironi   +11 more
wiley   +1 more source

Study on the dynamic load sharing characteristics of nutation face gear transmission

Discover Applied Sciences
The nutation face gear transmission is a type of power splitting, and the effects of system parameters such as stiffness and transmission error on load distribution are not yet well understood. The Load Tooth Contact Analysis (LTCA) technique was used to
Wang Li, Yufeng Gao, Jingzi Zhang
doaj   +1 more source

Finite element analysis of feeding in red and gray squirrels (Sciurus vulgaris and Sciurus carolinensis)

The Anatomical Record, EarlyView.
Abstract Invasive gray squirrels (Sciurus carolinensis) have replaced the native red squirrel (Sciurus vulgaris) across much of Great Britain over the last century. Several factors have been proposed to underlie this replacement, but here we investigated the potential for dietary competition in which gray squirrels have better feeding performance than ...
Philip G. Cox, Peter J. Watson
wiley   +1 more source

The Nutation Damping Control of a Spacecraft [PDF]

Journal of Astronomy and Space Sciences, 1994
In this paper, the Variable Structure System(VSS) theory with new continuous switching dynamic equation is used to design an automatic controller for the active nutation damping in momentum bias stabilized spacecraft.
Chang-Hoon Lee
doaj  

In‐vitro puncture experiment using alligator teeth tracks the formation of dental microwear and its association with hardness of the diet

The Anatomical Record, EarlyView.
Abstract With the development of dental microwear texture analysis (DMTA), there has been an increasing application of DMTA for dietary estimation in extant and fossil reptiles, including dinosaurs. While numerous feeding experiments exist for herbivorous mammals, knowledge remains limited for carnivorous reptiles. This study aimed to qualitatively and
K. Usami, M. O. Kubo
wiley   +1 more source

Variation in parrot jaw musculature

The Anatomical Record, EarlyView.
Interspecific morphological differences in some superficial jaw muscles of parrots. Abstract Psittaciformes, the order encompassing parrots and their relatives, are highly diverse and generally known for having a strong beaks used for multiple behaviors. The muscles related to the masticatory apparatus should reflect this functional complexity; however,
Ana Carolina L. Faillace, Arin Berger, Marcelo Ismar S. Santana, Adam Hartstone‐Rose   +3 more
wiley   +1 more source

Spermidine Reproduces the Anti‐Inflammatory Effects of Intermittent Fasting and Prevents Urate and Calcium Pyrophosphate Crystal‐Induced Inflammation

Arthritis &Rheumatology, EarlyView.
Objective Gout caused by the formation of monosodium urate (MSU) crystals and calcium pyrophosphate (CPP) deposition disease are two major types of microcrystalline pathologies in adults. They are responsible for recurrent flares that rely on interleukin (IL) 1β via activation of the NLRP3 inflammasome.
Chinh Nghia Pham, Florence Castelli, Flora Finet, Charles Leroy, Céline Chollet, Twinu W. Chirayath, Subhalaxmi Moitra, Mylène Zarka, Agnès Ostertag, François Brial, Christèle Combes, Augustin Latourte, Thomas Bardin, François Fenaille, Pascal Richette, Hang Korng Ea   +15 more
wiley   +1 more source

Regional Shopping Objectives in British Grocery Retail Transactions Using Segmented Topic Models

Applied Stochastic Models in Business and Industry, EarlyView.
ABSTRACT Understanding the customer behaviours behind transactional data has high commercial value in the grocery retail industry. Customers generate millions of transactions every day, choosing and buying products to satisfy specific shopping needs.
Mariflor Vega Carrasco, Mirco Musolesi, Jason O'Sullivan, Rosie Prior, Ioanna Manolopoulou   +4 more
wiley   +1 more source

How flagellated bacteria wobble

Physical Review Research
The wobbling motion of flagellated bacteria significantly influences their swimming behavior, yet its dynamics remains poorly understood, primarily due to the difficulty in tracking the 3D orientations of both the flagellar bundle and the cell body. Here,
Chen Gui, Mingxin Mao, Pu Feng, Yuxin Shen, Xiangjun Gong, Gerhard Gompper, Jinglei Hu   +6 more
doaj   +1 more source

Making teaching an attractive profession: What are the challenges and opportunities for minority ethnic teachers in England?

British Educational Research Journal, EarlyView.
Abstract This paper explores the challenges and opportunities surrounding the recruitment and retention of minority ethnic teachers in England. Drawing on interview data from 33 teachers and school leaders of diverse ethnic backgrounds, it investigates whether racialised barriers identified in earlier research have shifted in the current context of ...
Antonina Tereshchenko, Feyisa Demie, Stephen Gorard, Yiyang Gao, Beng Huat See, Nadia Siddiqui   +5 more
wiley   +1 more source