Results 111 to 120 of about 959,589 (309)

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Green Taxes and Administrative Costs: The Case of Carbon Taxation [PDF]

open access: yes
This paper explores the trade-off between incentive effects and administrative costs associated with the implementation of various environmental tax instruments, with special reference to carbon taxes.
Herman R.J. Vollebergh, Sjak Smulders
core  

Seasonal drought during the soybean growth period and agricultural water stress in southern China eased in the context of global warming

open access: yesAgricultural Water Management
Seasonal drought poses significant risks to agricultural productivity in humid areas. However, research on crop water requirement (CWR) and irrigation water requirement (IWR) under such conditions remains limited, particularly in the Yangtze River Basin ...
Xiaolong Yang   +6 more
doaj   +1 more source

Production of MgO/TiC Composites From MgO‐C Recyclates Using Spark Plasma Sintering

open access: yesAdvanced Engineering Materials, EarlyView.
Using the spark plasma sintering technique, MgO/TiC composites are manufactured from recycled MgO‐C refractories stemming from the steel production that were mixed with titanium powder. This article shows, how the size of the Ti grains and their distribution in the powder mixture affect the local carbon concentration in TiC.
Jiayan Yu   +3 more
wiley   +1 more source

The physics and chemistry of circumstellar envelopes of S-stars on the AGB

open access: yes, 2007
The S-stars have been suggested to be a brief transitional phase as stars evolve from oxygen-rich M-type stars into carbon stars, through the dredge up of carbon from He-shell burning.
Olofsson, H.   +2 more
core   +1 more source

Scaling effects of stand structure characteristics and carbon stock estimation in subtropical vegetation: An example from Zhejiang Province, China

open access: yesTrees, Forests and People
In subtropical forest resource inventories, the plot-based sampling method is the primary approach for obtaining stand-structure and carbon-stock information.
Huawei Wu   +6 more
doaj   +1 more source

Copper Nanocrystallization in Anodic Oxide Films of Ti–Cu‐Based Bulk Metallic Glass and Its Effect on the Corrosion Resistance and Cytocompatibility

open access: yesAdvanced Engineering Materials, EarlyView.
Viktoriia Shtefan, Thorgund Nemec, Ute Hempel, Annett Gebert and coworkers demonstrate that anodic treatment of Ti–Cu‐based metallic glass in a nontoxic pyrophosphate electrolyte forms a protective bilayered Ti/Zr‐oxide film enriched with Cu nanocrystals.
Viktoriia Shtefan   +8 more
wiley   +1 more source

Counting all the costs: recognising the carbon subsidy to polluting energy [PDF]

open access: yes
Excluding the cost of carbon pollution from decision-making creates market distortions and the undervaluation of emission reduction, argues this report.

core  

Gas and Dust in the Cloverleaf Quasar at Redshift 2.5

open access: yes, 2003
We observed the upper fine structure line of neutral carbon, CI(2-1), the CO(3-2) line and the 1.2mm continuum emission from H1413+117 (Cloverleaf quasar, z=2.5) using the IRAM interferometer. Together with the detection of the lower fine structure line (
A. Weiß   +33 more
core   +1 more source

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