Results 51 to 60 of about 13,456,150 (364)

PERIODIC ENVIRONMENTS AND PERIODIC HARVESTING

open access: yesNatural Resource Modeling, 2003
ABSTRACT. We consider autonomous population models under periodic harvesting and population models in periodic environments and seek conditions under which there is an asymptotically stable periodic solution.
Brauer, Fred, Sánchez, David A.
openaire   +2 more sources

Review of long period fiber gratings written by CO2 laser

open access: yes, 2010
This paper presents a systematic review of long period fiber gratings (LPFGs) written by the CO2 laser irradiation technique. First, various fabrication techniques based on CO2 laser irradiations are demonstrated to write LPFGs in different types of ...
Yiping Wang, Wang, Yiping
core   +1 more source

Optical fibre long period grating based selective vapour sensing of volatile organic compounds [PDF]

open access: yes, 2010
The chemical sensing capabilities of an optical fibre long period grating (LPG) coated with a functional material are explored. The LPG period and coating thickness are chosen such that the mode transition region, characteristic of LPGs coated with ...
Tatam, Ralph P.   +4 more
core   +1 more source

Filosofi, filosofe, medici e guaritrici in alcuni romanzi storici medievali

open access: yesDoctor Virtualis, 2021
Il genere della medieval crime fiction ha preso il volo (dal punto di vista della quantità e della qualità delle creazioni) dall’inizio degli anni ’80 del secolo scorso, grazie ai romanzi di Ellis Peters (A Morbid Taste for Bones, 1977) e soprattutto di ...
Costantino Marmo
doaj  

Costruzione della teologia e unità della ragione in Tommaso d’Aquino.
Una possibile interpretazione del Super Boetium De Trinitate

open access: yesDoctor Virtualis, 2008
La teologia, come scienza e sapienza, non  asseconda o compie l’ideale di una ragione “forte”, che faccia tutt’uno con la conoscenza speculativa: per una simile ragione – e per la teologia che ne consegue – il significato della realtà, sebbene rivelato ...
Giuseppe Bottarini
doaj   +1 more source

Hārūn al-Rashīd e al-Muqtadir. Come distinguere un buon califfo da un cattivo califfo

open access: yesDoctor Virtualis, 2010
In questo articolo ci si occupa di come il regno e la vita di due califfi abbasidi siano ritratti e valutati dalle fonti narrative arabe medievali. Hārūn al-Rashīd (r. 170/786-193/809) e al-Muqtadir (r.
Letizia Osti
doaj   +1 more source

La poetica aristotelica nella tradizione islamica

open access: yesDoctor Virtualis, 2008
La complessa storia della Poetica aristotelica nella cultura arabo-islamica. Alcune vistose discrepanze tra il testo greco e i commenti arabi e, al tempo stesso, l'originalità della lettura proposta dai falāsifah.
Francesca Forte
doaj   +1 more source

Gridded emissions of air pollutants for the period 1970–2012 within EDGAR v4.3.2

open access: yesEarth System Science Data, 2018
. The new version of the Emissions Database for Global Atmospheric Research (EDGAR v4.3.2) compiles gaseous and particulate air pollutant emissions, making use of the same anthropogenic sectors, time period (1970–2012), and international activity data ...
M. Crippa   +10 more
semanticscholar   +1 more source

Periodicity in Tilings [PDF]

open access: yes, 2010
Tilings and tiling systems are an abstract concept that arise both as a computational model and as a dynamical system. In this paper, we characterize the sets of periods that a tiling system can produce. We prove that up to a slight recoding, they correspond exactly to languages in the complexity classes $\nspace{n}$ and $\cne$.
Jeandel, Emmanuel, Vanier, Pascal
openaire   +2 more sources

Periodicity in Insanity and Lunar Period [PDF]

open access: yesThe Journal of Nervous and Mental Disease, 1883
n ...
openaire   +1 more source

Home - About - Disclaimer - Privacy