Results 81 to 90 of about 6,838 (248)

Gepta‐EX: a multi‐channel germanium detector for X‐ray absorption fine structure

open access: yesJournal of Synchrotron Radiation, EarlyView.
Gepta‐EX is a compact seven‐channel high‐purity germanium detector designed to deliver high‐resolution fluorescence X‐ray absorption fine‐structure measurements at photon energies where silicon detectors become effectively transparent. It provides excellent energy resolution across a broad energy range, avoids silicon escape‐peak artifacts, and offers ...
Abdul K. Rumaiz   +6 more
wiley   +1 more source

Heat Transfer Intensification in Recuperative Heat Exchangers of the Stirling Engine

open access: yesEngineering Proceedings
The non-stationary mode of movement of the working fluid flow in the Stirling engine causes serious difficulties in the design of heat exchangers. In most cases, the operation of conventional commercial heat exchangers is considered under steady-state ...
Abay Dostiyarov   +5 more
doaj   +1 more source

Comparison of the Net Work Output between Stirling and Ericsson Cycles

open access: yesEnergies, 2018
In this paper, we compare Stirling and Ericsson cycles to determine which engine produces greater net work output for various situations. Both cycles are for external heat engines that utilize regenerators, where the difference is the nature of the ...
Rui F. Costa, Brendan D. MacDonald
doaj   +1 more source

Riding Through Norms: Creating and Performing Athletic Femininity at American Ladies’ Equestrian Exhibitions, 1850–1890

open access: yesGender &History, EarlyView.
ABSTRACT During the nineteenth century, American agricultural fairs often featured ladies’ equestrian exhibitions. At these events, women constructed an athletic femininity based on skill and competitiveness that challenged traditional ideals of womanhood.
Gabrielle McCoy
wiley   +1 more source

Reforming Export Control Regimes: Addressing Emerging Technologies Through Responsible Innovation

open access: yesGlobal Policy, EarlyView.
ABSTRACT The proliferation of dual‐use emerging technologies—such as artificial intelligence (AI), quantum computing, and additive manufacturing—poses a growing challenge for multilateral export control regimes. Designed for tangible goods and slower innovation cycles, existing arrangements increasingly struggle to govern technologies that are ...
Stella Blumfelde
wiley   +1 more source

The Stirling Thermodynamic Cycle [PDF]

open access: yes, 2009
My doctoral thesis deals with study and analyse of Stirling thermodynamical cycle. Cycle that is composed of two isochoras and two isotherms. I describe functional principle of Stirling engine and all its parts, constructional variations of pistons ...
Macháček, Jan
core  

Changing public perceptions of alcohol, alcohol harms and alcohol policies: A multi‐methods study to develop novel framing approaches

open access: yesAddiction, Volume 120, Issue 4, Page 655-668, April 2025.
Abstract Background and aims Public perceptions of alcohol and its related harms and policies are shaped by multiple discourses and can influence behaviour and policy support. As part of a FrameWorks‐informed project to test framing approaches to improve public understanding and support for evidence‐based alcohol policies in the UK, this research aimed
Niamh Fitzgerald   +12 more
wiley   +1 more source

ARCoES: Adaptation and Resilience of Coastal Energy Supply [PDF]

open access: yes, 2018
A laboratory study was carried out in the first quarter of 2015 using a single diatom species Cylindrotheca closterium ((Ehrenberg) Lewin & Reimann (1964)) purchased from CCAP (Culture Collection of Algae and Protozoa) and cadmium (Cd) spiked sediment ...
Becker, Amani E
core  

Thermodynamic analysis and analytical simulation of the Rallis modified Stirling cycle [PDF]

open access: yes, 2019
A Stirling cycle was developed by Rallis considering the adiabatic behaviour instead of isothermal behaviour of working fluid inside the expansion/compression volume, since the isothermal processes are very difficult to be realised in actual practice due
Verma, Suresh Kant, Ranjan, Ravi Kant
core   +1 more source

The selective degradation of PDE4B shortform, using a PROTAC, leads to inhibition of several hallmarks of cancer in HCT116 cells

open access: yesBritish Journal of Pharmacology, EarlyView.
Background and Purpose Colorectal cancer is one of the most prevalent cancers worldwide, and novel precision medicine approaches are rapidly improving patient outcomes. Phosphodiesterase 4B (PDE4B) is a member of an enzyme family (PDE4) that hydrolyses intracellular cAMP to control spatial and temporal signalling cues.
Alina Zorn   +11 more
wiley   +1 more source

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