Results 121 to 130 of about 909,329 (315)

A multi-purpose modular system for high-resolution microscopy at high hydrostatic pressure

open access: yes, 2009
We have developed a modular system for high-resolution microscopy at high hydrostatic pressure. The system consists of a pressurised cell of volume ~100 microlitres, a temperature controlled holder, a ram and a piston.
Allen, Rosalind J.   +5 more
core   +1 more source

Characteristics, properties and limitations of per‐ or polyfluoroalkyl substances (PFASs) and fluoropolymers

open access: yesPolymer International, EarlyView.
An overview and categorization of man‐made per‐ or polyfluoroalkyl substances (PFASs) including low‐molar‐mass and high‐molar‐mass fluorochemicals, and their international regulations is presented. Though certain PFASs are toxic, bioaccumulative and cross the human cellular membranes, others, such as fluoropolymers, are safe, reliable and involved in ...
Bruno Améduri
wiley   +1 more source

Zero gravity tissue-culture laboratory [PDF]

open access: yes, 1972
Hardware was developed for performing experiments to detect the effects that zero gravity may have on living human cells. The hardware is composed of a timelapse camera that photographs the activity of cell specimens and an experiment module in which a ...
Cook, J. E.   +2 more
core   +1 more source

Injury Risks to a Migratory Freshwater Fish During Downstream Passage Through a Regulated Floodplain Outlet: A Case Study on Golden Perch (Macquaria ambigua)

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT River infrastructures such as weirs, dams, inlet and outlet regulators often impair connectivity, leading to degradation and loss of key habitats for riverine fishes. This also holds true for golden perch (Macquaria ambigua Richardson), a migratory species in Australia's Murray–Darling Basin.
Josef Knott   +5 more
wiley   +1 more source

Wear Analysis of Additively Manufactured Slipper-Retainer in the Axial Piston Pump. [PDF]

open access: yesMaterials (Basel), 2022
Klimek A   +5 more
europepmc   +1 more source

Development of a Vibration-Based Health Monitoring Procedure using a Virtual Axial Piston Pump [PDF]

open access: yes, 2015
Monitoring vibration signatures produced by axial piston pumps can provide insight into changes of the pump system, which may then be associated with early signs of mechanical or hydraulic component failures.
Yoder, Valerie
core  

Resource reallocation across successive systemic innovations: How Rolls‐Royce shaped the evolution of the turbojet, turboprop, and turbofan

open access: yesStrategic Management Journal, EarlyView.
Abstract Research Summary Despite the importance of resource reallocation in shaping a variety of strategic outcomes, strategy scholars have paid only limited attention to the processes by which firms reallocate their resources across successive systemic innovations.
Gino Cattani   +2 more
wiley   +1 more source

Research on drain oil interference of pump housing in multi-pump parallel hydraulic system of large aircraft

open access: yesHangkong gongcheng jinzhan
The mutual interference of drain oil of pump housing in the multi-pump parallel hydraulic system of large aircraft directly affects the performance of the aircraft hydraulic system and the flight safety.
GUO Tuanhui   +3 more
doaj   +1 more source

Design and development of auxiliary components for a new two-stroke, stratified-charge, lean-burn gasoline engine [PDF]

open access: yes, 2005
A unique stepped-piston engine was developed by a group of research engineers at Universiti Teknologi Malaysia (UTM), from 2003 to 2005. The development work undertaken by them engulfs design, prototyping and evaluation over a predetermined period of ...
Abdul Aziz, Azhar   +5 more
core  

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