Results 11 to 20 of about 3,415,354 (298)

Flux-Modulated Permanent Magnet Machines: Challenges and Opportunities

open access: yesWorld Electric Vehicle Journal, 2021
High torque density is a desirable feature of electrical machines used in traction applications, such as electric vehicle (EV)/hybrid electric vehicle (HEV) propulsion, wind turbines, more electric aircrafts, etc.
Qingsong Wang, Xing Zhao, Shuangxia Niu
doaj   +1 more source

Study of the 14C-contamination potential of C-impurities in CuO and Fe [PDF]

open access: yes, 1997
The carbon concentration in CuO and iron was determined by isolating C. The values were in agreement with results reported in other studies. Contaminating carbon from CuO and Fe was transformed to AMS targets and measured for C-14.
Dams, Richard   +3 more
core   +2 more sources

Roles of Candida albicans Mig1 and Mig2 in glucose repression, pathogenicity traits, and SNF1 essentiality. [PDF]

open access: yes, 2020
Metabolic adaptation is linked to the ability of the opportunistic pathogen Candida albicans to colonize and cause infection in diverse host tissues. One way that C.
Filler, Scott G   +7 more
core   +3 more sources

The impact of methane leakage on the role of natural gas in the European energy transition

open access: yesNature Communications, 2023
Decarbonising energy systems is a prevalent topic in the current literature on climate change mitigation, but the additional climate burden caused by methane emissions along the natural gas value chain is rarely discussed at the system level. Considering
Behrang Shirizadeh   +14 more
doaj   +1 more source

Characteristics of C-4 photosynthesis in stems and petioles of C-3 flowering plants [PDF]

open access: yes, 2002
Most plants are known as C-3 plants because the first product of photosynthetic CO2 fixation is a three-carbon compound. C-4 plants, which use an alternative pathway in which the first product is a four-carbon compound, have evolved independently many ...
A Ben Zioni   +29 more
core   +1 more source

Climatic, edaphic, and biotic controls over storage and turnover of carbon in soils [PDF]

open access: yes, 1994
Soil carbon, a major component of the global carbon inventory, has significant potential for change with changing climate and human land use. We applied the Century ecosystem model to a series of forest and grassland sites distributed globally to examine
Braswell, Rob   +7 more
core   +2 more sources

New Directions in Transition Metal Catalyzed Carbonylation Chemistry

open access: yesCHIMIA, 2018
Carbon monoxide (CO) represents an important C1-building block for the construction of some of the most fundamental chemical functionalities carrying a carbon–oxygen double bond.
Dennis U. Nielsen   +2 more
doaj   +1 more source

Combining Pultrusion with Carbonization: Process Analysis and Material Properties of CFRP and C/C

open access: yesCeramics, 2023
Composites made of carbon-fiber-reinforced carbon (C/C or CFC) are high-performance materials with a wide range of properties, making them especially suitable for the design of thermally and mechanically highly stressed components.
Jonas H. M. Stiller   +6 more
doaj   +1 more source

Calculating the global contribution of coralline algae to carbon burial [PDF]

open access: yes, 2015
The ongoing increase in anthropogenic carbon dioxide (CO2) emissions is changing the global marine environment and is causing warming and acidification of the oceans.
Kamenos, N. A., van der Heijden, L. H.
core   +1 more source

Toarcian oceanic anoxic event: An assessment of global causes using belemnite C isotope records [PDF]

open access: yes, 2005
Two hypotheses have been proposed to explain simultaneous large negative excursions (up to 7% PeeDee belemnite) in bulk carbonate (delta(13)C(carb)) and organic carbon isotope records (delta(13)C(org)) from black shales marking the Toarcian oceanic ...
Bailey, TR   +5 more
core   +1 more source

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