Results 121 to 130 of about 330,449 (293)

Arylhydrazines: Convenient Homogeneous Reductants for Scalable Cross‐Coupling

open access: yesAngewandte Chemie, EarlyView.
Reductive cross‐couplings enable efficient C–C bond formation but are limited by the heterogeneity of Zn or costly reagents like TDAE. We report arylhydrazines as inexpensive, convenient reductants for Ni‐catalyzed sp2–sp3 coupling of aryl halides and secondary alkyl iodides. Mechanistic studies support hydrazine‐mediated NiII reduction for a NiI/NiIII
Nils Kurig   +5 more
wiley   +2 more sources

Non-invasive assessment of positive affective state using infra-red thermography in rats. [PDF]

open access: yesAnim Welf, 2023
Wongsaengchan C   +4 more
europepmc   +1 more source

Renormalization group approach to 2D Coulomb interacting Dirac fermions with random gauge potential

open access: yes, 2007
We argue that massless Dirac particles in two spatial dimensions with $1/r$ Coulomb repulsion and quenched random gauge field are described by a manifold of fixed points which can be accessed perturbatively in disorder and interaction strength, thereby ...
I. F. Herbut   +4 more
core   +1 more source

Показатель инфракрасной заметности боевых летательных аппаратов для оценки влияния конструктивно-компоновочных решений на заметность [PDF]

open access: yes, 2009
The task of conformity of definite tactics-technical characteristics at the maximally possible descent of level of all types of viewing, including, infra-red stands before a developer during the multiple researches of arrange-ments of battle ...
Анипко, О. Б.   +1 more
core  

Absorption spectra of Fe L-lines in Seyfert 1 galaxies

open access: yes, 2003
Absorption L-lines of iron ions are observed, in absorption, in spectra of Seyfert 1 galaxies by the new generation of X-ray satellites: Chandra (NASA) and XMM-Newton (ESA). Lines associated to Fe23+ to Fe17+ are well resolved.
Antonucci   +16 more
core   +2 more sources

Design, Development and Implementation of the IR Signalling Techniques for Monitoring Ambient and Body Temperature in WBANs [PDF]

open access: yesMehran University Research Journal of Engineering and Technology, 2014
Healthcare systems such as hospitals, homecare, telemedicine, and physical rehabilitation are expected to be revolutionized by WBAN (Wireless Body Area Networks).
Attiya Baqai   +2 more
doaj  

On gauge-invariant Green function in 2+1 dimensional QED

open access: yes, 2003
Both the gauge-invariant fermion Green function and gauge-dependent conventional Green function in $ 2+1 $ dimensional QED are studied in the large $ N $ limit.
A. Lopez   +28 more
core   +1 more source

DRYING KINETICS AND MATHEMATICAL MODELING OF FAR-INFRA RED VACUUM DRYING OF SOME VEGETABLES AND FRUITS [PDF]

open access: yesApplied Engineering Letters, 2017
In this paper the drying kinetics of far-infrared vacuum drying of some vegetables and fruits are presented. The experimental data of drying kinetics were obtained on experimental drying setup designed to imitate industrial dryer.
Vangelce Mitrevski   +3 more
doaj  

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