Results 91 to 100 of about 158,332 (294)

HI Observations of the Ca II absorbing galaxies Mrk 1456 and SDSS J211701.26-002633.7

open access: yes, 2009
In an effort to study Damped Lyman Alpha galaxies at low redshift, we have been using the Sloan Digital Sky Survey to identify galaxies projected onto QSO sightlines and to characterize their optical properties.
B. Cherinka   +51 more
core   +1 more source

Optical Photometry and Spectroscopy of the Accretion-Powered Millisecond Pulsar HETE J1900.1-2455 [PDF]

open access: yes, 2008
We present phase resolved optical photometry and spectroscopy of the accreting millisecond pulsar HETE J1900.1-2455. Our R-band light curves exhibit a sinusoidal modulation, at close to the orbital period, which we initially attributed to X-ray heating ...
A. V. Filippenko   +52 more
core   +2 more sources

Sustainability Orientation and Sustainable Innovation: Can Organisational Resilience Clarify the Missing Link?

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT Although firms that integrate a sustainability orientation (SO) may experience a significant improvement in their resource efficiency, many, particularly small‐ and medium‐sized enterprises (SMEs), still struggle with the complexities of incorporating sustainability into their business models.
Michael Adu Kwarteng   +3 more
wiley   +1 more source

Fluxos de energia e desenvolvimento da cultura do abacaxizeiro Energy fluxes and development of pineapple crop

open access: yesRevista Brasileira de Engenharia Agrícola e Ambiental, 2008
O dossel vegetativo do abacaxizeiro varia consideravelmente desde o plantio das mudas até a cobertura completa, no final do ciclo produtivo. Um experimento agrometeorológico foi desenvolvido nos tabuleiros costeiros do estado da Paraíba, com o cultivo do
Cleber B. de Souza   +3 more
doaj   +1 more source

New perspectives on strong z=0.5 MgII absorbers: are halo-mass and equivalent width anti-correlated? [PDF]

open access: yes, 2006
We measure the mean halo-mass of z=0.5 MgII absorbers using the cross-correlation (over co-moving scales 0.05-13h^{-1}Mpc) between 1806 MgII quasar absorption systems and ~250,000 Luminous Red Galaxies (LRGs), both selected from the SDSS DR3.
Abazajian   +112 more
core   +2 more sources

Strategic Prioritization of Environmental, Social, and Governance Goals: A Data‐Driven Efficiency Framework

open access: yesCorporate Social Responsibility and Environmental Management, EarlyView.
ABSTRACT Organizations are increasingly required to integrate environmental, social, and governance (ESG) objectives alongside operational performance, yet empirical guidance on how firms should prioritize among ESG activities under resource constraints remains limited.
Minyoung Choi   +2 more
wiley   +1 more source

A modified Bowen ratio method to determine sensible and latent heat fluxes

open access: yesMeteorologische Zeitschrift, 2001
The sensible heat flux (H) and the latent heat flux (λE) were measured above a grassland during June, 1997 (LINEX-97/1 Experiment), using the eddy covariance method (EC) and the Bowen ratio/Energy balance method (BREB).
Heping Liu, Thomas Foken
doaj   +1 more source

Farm level water footprints of rice production based on measured and estimated crop evapo-transpiration

open access: yesJournal of Agrometeorology, 2014
Studies have been conducted to quantify water footprint (WF) on high spatial scale in which crop evapo-transpiration (ETc) was computed indirectly using empirical formula.
GOURANGA KAR   +2 more
doaj   +1 more source

Fracture evolution of a thick soft protection layer and the water inrush mechanism in overburden under longwall mining

open access: yesDeep Underground Science and Engineering, EarlyView.
Through shear–tensile creep tests and viscoelastic modeling, the fracture evolution of thick soft protective layers is clarified. Results show thickness‐dependent rheological failure modes that govern four types of roof water inrush, providing a mechanism‐based framework for hazard prediction and control. Abstract In the Jurassic coal‐bearing strata of
Mengnan Liu   +4 more
wiley   +1 more source

Ordered Nanostructural Engineering of Cathode Catalyst Layer With High Mass Transport Efficiency for High‐Performance Ultra‐Low Pt Loading Proton Exchange Membrane Fuel Cells

open access: yesENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
An ordered cathode catalyst layer with efficient mass transport capability was developed based on the ALD of Pt onto VACNTs for high‐performance ultra‐low Pt loading PEMFC. The order‐structured cathode catalyst layer (CCL) has been considered the most promising solution to construct low‐cost proton exchange membrane fuel cells (PEMFCs) with an ultra ...
Jia Liu   +8 more
wiley   +1 more source

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