Results 31 to 40 of about 1,149,212 (346)

Coal characteristics of the eocene to pliocene epoch: A case study in the Berau Sub-basin, East Kalimantan, Indonesia [PDF]

open access: yesE3S Web of Conferences
A complex material, coal is primarily composed of carbon, hydrogen, oxygen, nitrogen, sulfur, and other minerals. The research area is located in the Berau Sub-basin, which is part of the Tarakan Basin.
Wahyu Sugiarto   +3 more
doaj   +1 more source

Visualizing a Carbon-Fixing Nanowire Inside Bacteria

open access: yesCHIMIA, 2023
No abstract ...
Righetto, Ricardo D., Engel, Benjamin D.
openaire   +5 more sources

Does the marketization of land transfer have an impact on carbon emissions? Evidence from China

open access: yesFrontiers in Environmental Science, 2022
Excessive carbon emissions caused by extensive economic development are the key to the current government’s carbon emission reduction goals. In the process of market-oriented reform of land transfer, alleviating the contradiction between land use and low-
Ruigang Zhang, Runze Yang, Yu Huang
doaj   +1 more source

Setup for shot noise measurements in carbon nanotubes [PDF]

open access: yes, 2006
We have constructed a noise measurement setup for high impedance carbon nanotube samples. Our setup, working in the frequency range of 600 - 900 MHz, takes advantage of the fact that the shot noise power is reasonably large for high impedance sources so ...
Hakonen, Pertti   +5 more
core   +3 more sources

Modal participation of fixed–fixed single-walled carbon nanotube with vacancies [PDF]

open access: yesInternational Journal of Advanced Structural Engineering, 2019
Cet article présente une étude des comportements dynamiques du modèle de nanotubes de carbone à paroi unique (SWCNT) fixes-fixes parfaits et défectueux en tant que structures de poutre. Les fréquences fondamentales et les facteurs de participation modale pour les SWCTS à support fixe-fixe sont pris en compte dans cette analyse pour la première fois. Un
Mohamed A. Eltaher   +4 more
openaire   +1 more source

Light enhanced calcification in Stylophora pistillata: effects of glucose, glycerol and oxygen [PDF]

open access: yesPeerJ, 2014
Zooxanthellate corals have long been known to calcify faster in the light than in the dark, however the mechanism underlying this process has been uncertain.
Michael Holcomb   +3 more
doaj   +2 more sources

Methods of using carbon nanotubes as filter media to remove aqueous heavy metals [PDF]

open access: yes, 2012
Although carbon nanotubes (CNTs) are well known to have a strong affinity to various heavy metals in aqueous solution, little research has been dedicated to exploit their use in fixed-bed water treatment systems (e.g., trickling filters).
Cao, Can   +8 more
core   +3 more sources

Study on the property and airflow grading of Ningxia coal gasification fine slag

open access: yesCleaner Chemical Engineering, 2022
Coal gasification fine slag (FS) is a solid waste of difficult-to-separate nature. In order to improve the reuse rate of coal gasification fine slag resources, so as to improve the value-added utilization and clean transformation for coal chemical ...
Ying Gao   +6 more
doaj   +1 more source

Estimating soil carbon sequestration with woody and bamboo biochar using the Japanese Industrial Standard (JIS) M 8812

open access: yesCarbon Management
The Intergovernmental Panel on Climate Change (IPCC) established a methodology to estimate carbon sequestered from biochar additions to mineral soils in the 2019 Refinement Guideline, requiring a pyrolysis temperature exceeding 350 °C and three variables:
Yasuji Kurimoto   +4 more
doaj   +1 more source

Analisis Proksimat dan Bilangan Yodium Sebagai Kajian Awal Aarang Tempurung Nipah Sebagai Bahan Intermediate Karbon Keras

open access: yesRekayasa Hijau: Jurnal Teknologi Ramah Lingkungan, 2023
ABSTRAK Karbon keras sebagai anoda baterai ion sodium memiliki kapasitas penyimpanan ion sodium yang paling tinggi diantara karbon lunak dan grafit karena struktur ikatan karbonnya paling acak sehingga akan menyediakan ruang lebih luas untuk insersi ion ...
Theresia Evila Purwanti Sri Rahayu   +2 more
doaj   +1 more source

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