Results 91 to 100 of about 163,369 (269)

Nuclear spin of a new isomer in $^{119}Cs$ and magnetic moment of $^{120}Cs$: Evidence for strongly deformed nuclear shapes of the light cesium isotopes

open access: yes, 1978
The nuclear spin, I=/sup 3///sub 2/, of a new isomer in /sup 119/Cs and the magnetic moment, mu /sub I/=3.92(5) nm, of /sup 120/Cs have been determined in on-line ABMR experiments at the ISOLDE facility, CERN.
Wannberg, G, Ekström, C, Heinemeier, J
core   +1 more source

MicroCT reinvestigation of the only articulated fossil anostomid fish reveals synonymy of Arhinolemur Ameghino, 1898 and Megaleporinus Ramirez et al., 2017

open access: yesThe Anatomical Record, EarlyView.
Abstract Arhinolemur scalabrinii† Ameghino, 1898 was originally described as a strepsirrhine primate (Mammalia) but has been recognized as an anostomid fish since 2012. It remains the only extinct anostomid species known from complete cranial material.
Karen M. Panzeri   +8 more
wiley   +1 more source

Durable Fuel Cell Cathode Enabled by Pt Embedded Nanoscale Carbon Network via a Scalable Process

open access: yesCarbon Energy, EarlyView.
Platinum nanoparticles embedded nanoscale carbon network (Pt‐e‐Cn) are developed via a scalable flame spray pyrolysis process. Proton exchange membrane fuel cells (PEMFC) employing mesoporous Pt‐e‐Cn cathode electrocatalysts exhibit exceptional durability without compromising performance.
Suriya Venkatesan   +10 more
wiley   +1 more source

A Convergent Materials Design Paradigm Across Electro‐ and Photocatalysis for Sustainable Hydrogen Peroxide Production

open access: yesCarbon Energy, EarlyView.
This review outlines advanced modification strategies for electrocatalytic and photocatalytic H2O2 production, covering bandgap tuning, defect engineering, heterostructure construction, cocatalyst loading, and functional framework design. Structure‐performance correlations are revealed across catalysts such as metal oxides, sulfides, carbon nitrides ...
Na Li   +9 more
wiley   +1 more source

Optimization of nutrients ratio in Hoagland solution to improve the capability of Rapeseed (Brassica napus L) to decontaminate water from pollution of radioactive cesium isotopes in hydroponic condition

open access: yes, 2019
Optimization of nutrient ratio in Hoagland solution to improve the capability of rapeseed (Brassica napus L) to decontaminate water from pollution of radioactive cesium isotopes in hydroponic ...
Donatella Ferri   +3 more
core  

Very neutron-deficient isotopes of Cs studied on-line

open access: yes, 1972
Short-lived cesium isotopes have been studied by means of a new target and ion-source system. The Cs was produced by bombarding molten La with 600 MeV protons.
Sundell, S, Ravn, H L, Westgaard, L
core   +1 more source

Polarizing ³He by Spin Exchange with Potassium [PDF]

open access: yes, 2004
We present experimental studies on the spin-exchange optical pumping of ³He using alkali metal potassium vapor. High ³He polarizations are achieved using lower laser power than traditional rubidium-³He pumping studies.
Wang, Guodong
core   +1 more source

Experimental methods in chemical engineering: Temperature‐programmed oxidation—TPO

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Temperature‐programmed oxidation (TPO) probes the oxidative capacity and redox properties of solid materials—catalysts, metal oxides, perovskites, and carbonaceous deposits. It identifies coke type, distribution, and reactivity. TPO instruments pass an oxidizing gas (diluted O2$$ {\mathrm{O}}_2 $$, air, or less commonly N2O$$ {\mathrm{N}}_2 ...
Gholamreza Roohollahi   +7 more
wiley   +1 more source

Development of lowenergy accelerator-based production of medical isotopes [PDF]

open access: yes, 2013
Here we present methods for production of new and existing isotopes for SPECT (Single Photon Emission Computed Tomography) and PET (Positron Emission Tomography) imaging using accelerator-based systems.
Beasley, P.   +3 more
core   +2 more sources

Advantages of Pulsed Laser Ion Source (LIS) at an Intensity of About 1010 W/cm2 for Heavy‐Ion Injection Into High‐Energy Accelerators

open access: yesContributions to Plasma Physics, EarlyView.
ABSTRACT At the Laser Plasma Physics laboratories of the University of Messina, an experimental platform for generating and accelerating low‐energy ions (keV) using pulsed lasers and for their potential applications has been put into operation. A Q‐switched Nd:YAG laser produces the beam for the system, operating at 1064 nm.
L. Torrisi, M. Cutroneo, A. Torrisi
wiley   +1 more source

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