Results 271 to 280 of about 1,297,385 (298)

Climate‐driven global changes in carbon use efficiency

Global Ecology and Biogeography, 2013
AbstractAimCarbon use efficiency [net primary production (NPP)/gross primary production (GPP) ratio] is a parameter related to the allocation of photosynthesized products by plants and is commonly used in many biogeochemical cycling models. But how this parameter changes with climates is still unknown.
Yangjian Zhang, Guirui Yu, Jian Yang, Michael C. Wimberly, XianZhou Zhang, Jian Tao, Yanbin Jiang, Juntao Zhu   +7 more
openaire   +1 more source

Efficient synthesis of isoindoles using supercritical carbon dioxide

Tetrahedron Letters, 2017
Abstract Bicyclopyrroles were efficiently converted to the corresponding isoindoles by a retro Diels-Alder reaction in supercritical carbon dioxide. By adding ethylene gas as an oxygen scavenger, the isoindole yield was further improved.
Satoshi Ito, Masayuki Akaki, Yasutaka Shinozaki, Yuuki Iwabe, Masaru Furuya, Marina Tobata, Makoto Roppongi, Takafumi Sato, Naotsugu Itoh, Toru Oba   +9 more
openaire   +1 more source

Soil nutrient availability regulated global carbon use efficiency

Global and Planetary Change, 2019
Abstract The carbon use efficiency (CUE) is a core ecosystem parameter that determines the proportion of gross primary productivity (GPP) kept by an ecosystem after self-consumption. Its patterns along climates have been investigated to some extents.
Yangjian Zhang, Ke Huang, Tao Zhang, Juntao Zhu, Yangping Di   +4 more
openaire   +1 more source

Formaldehyde Removal Efficiency Using Nano-size Carbon Colloids

Indoor and Built Environment, 2011
The purpose of this study was to assess the removal efficiency of formaldehyde using nano-size carbon colloid (NCC), which was produced by a comparatively easy and cheap method. In this study, nano-size carbon colloid based on water was produced by an electro-chemical method.
Seon-Hong Kim, Ki-Hoon Lee, Do-Hyeon Kim, Jong-Pill Park, Ji-Hoon Kim, Seung-Yeon Cho   +5 more
openaire   +1 more source

Multifaceted Links Between Microbial Carbon Use Efficiency and Soil Organic Carbon Sequestration

Global Change Biology
Conceptual framework to unlock the mechanisms for microbial carbon use efficiency and SOC formation.
openaire   +2 more sources

Carbon Isotope Fractionation and Plant Water-Use Efficiency

1989
In order for plants to grow, they must fix carbon. Carbon usually enters the leaves as carbon dioxide, diffusing through pores in the epidermis called stomata. Increased stomatal conductance, g, of leaves causes an increase in the partial pressure of CO2 inside the leaves, p i .
G. D. Farquhar, K. T. Hubick, A. G. Condon, R. A. Richards   +3 more
openaire   +1 more source

Estimating microbial carbon use efficiency in soil: Isotope-based and enzyme-based methods measure fundamentally different aspects of microbial resource use

Soil Biology and Biochemistry, 2022
Joshua P Schimel, Michael N Weintraub
exaly  

Mechanical energy harvesters with tensile efficiency of 17.4% and torsional efficiency of 22.4% based on homochirally plied carbon nanotube yarns

Nature Energy, 2023
Zhong Wang, Runyu Zhang, Ali E Aliev
exaly  

Carbon Isotope Discrimination and Plant Water-Use Efficiency

2001
It has been known for a long time that the isotope fractionation of carbon formed by photosynthesizing plants varies radically depending on the pattern of photosynthesis in which the species is engaging (see O’Leary 1988, Farquhar et al. 1989, and chapter by Dawson and Brooks in this volume).
openaire   +1 more source

Provincial cultivated land use efficiency in China: Empirical analysis based on the SBM-DEA model with carbon emissions considered

Technological Forecasting and Social Change, 2020
Xinhai Lu, Min Zhou, Danling Chen
exaly