Results 101 to 110 of about 450,334 (291)

Post-wildfire Erosion in Mountainous Terrain Leads to Rapid and Major Redistribution of Soil Organic Carbon

open access: yesFrontiers in Earth Science, 2017
Catchments impacted by wildfire typically experience elevated rates of post-fire erosion and formation and deposition of pyrogenic carbon (PyC). To better understand the role of erosion in post-fire soil carbon dynamics, we determined distribution of ...
Rebecca B. Abney   +6 more
doaj   +1 more source

Counting and properties of semi magic squares 6x6

open access: yesمجلة جامعة الزيتونة
In this paper, we consider this type of the classical semi magic squares 6 6 having the four corner property, namely the semi squares, We list counting of this type . We present the general form of this type. We classified the set of squares according to
Elhammale Muftah
doaj  

Magic square

open access: yesBaghdad Science Journal, 2009
In this paper we introduce two Algorithms, the first Algorithms when it is odd order and how we calculate magic square and rotation for it. The second Algorithms when it be even order and how to find magic square and rotation for it.
openaire   +1 more source

Oldest well‐preserved euprimate petrosal, from the early Eocene of India (Vastan Lignite Mine, Gujarat)

open access: yesThe Anatomical Record, EarlyView.
Abstract An exquisitely preserved, isolated partial petrosal with associated fragmentary stapes is described from the Vastan Lignite Mine (Gujarat, India), dated to the early Eocene (~54.5 Ma). Several anatomical traits (e.g., large petrosal plate; posterolateral entry of the internal carotid artery to the tympanic cavity; bony tubes surrounding the ...
Mary T. Silcox   +8 more
wiley   +1 more source

Magic squares of partitions [PDF]

open access: yes
departmental bulletin ...
シマブクロ, オサム   +2 more
core  

Embedding a Dinuclear Ru─Pt Photocatalyst Into Polyampholytic Graft Copolymer Matrix Enables Prolonged Hydrogen Evolution While Allowing Catalyst Repair

open access: yesChemistry – A European Journal, EarlyView.
A unimolecular polyampholytic graft copolymer matrix provides a protective confinement for an electrostatically embedded tetrapyridophenazine‐bridged heterodinuclear Ru‐Pt hydrogen evolving photocatalyst. The matrix slows the degradation kinetics of the catalyst and at the same time does not hinder its repair by ammonium persulfate.
Yurii Utievskyi   +10 more
wiley   +1 more source

Prairie Squares Records, 1962-2000; Crescent Squares Records, 1968-1982 [PDF]

open access: yes, 2019
The Prairie Squares and Crescent Squares Records consist of instructional square dancing manuals and pamphlets, movement guides, historical magazines, local histories of North Dakota square dance clubs, meeting minutes, guest books, by laws ...
Prairie Squares, Crescent Squares
core  

Non‐Covalent Fluorine–Silica Anchoring of a Molecular Platinum(II) bis(NHC) Catalyst: Structure, Interface Control, and Hydrosilylation Activity

open access: yesChemistry – A European Journal, EarlyView.
A Pt(II) bis(NHC) complex is immobilized on mesoporous silica through directional F–Si interactions encoded in the ligand framework. Quantitative 19F{29Si} REDOR experiments and molecular dynamics simulations establish Å‐scale catalyst–support contacts and define the interfacial organization.
Alexander Bergen   +10 more
wiley   +1 more source

Readily Accessible bTurea‐Derived Nitroxide Polarizing Agents for Dynamic Nuclear Polarization: bcTCOOKs and bcTmols

open access: yesChemistry – A European Journal, EarlyView.
Two families of bTurea‐derived biradicals, bcTmols and bcTCOOKs, were prepared as polarizing agents for dynamic nuclear polarization (DNP)‐enhanced NMR through short and efficient synthetic routes. The best‐performing biradical, bcTCOOK‐M2, containing two methyl groups on the urea bridge, provided signal enhancements of up to ∼220 at 14.1 T and 100 K ...
Ancy T. Wilson   +3 more
wiley   +1 more source

Constructing Magic Squares of Squares Modulo Certain Prime Numbers [PDF]

open access: yes, 2017
A magic square is a square table of numbers such that each row, column, or diagonal adds up to the same sum. This research is inspired by an open question posed by Martin Labar in 1984.
Bilynsky, Nicholas Ryan
core   +1 more source

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