Results 41 to 50 of about 3,807,656 (336)

Analysis of national air pollutant emissions in 2020 and re-estimation results for emissions from past years (2016–2019)

Asian Journal of Atmospheric Environment
The National Air Emission Inventory and Research Center (NAIR) has refined emissions estimation methods to enhance the accuracy and reliability of national statistics on air pollutant emissions. The center estimated 2020 national emissions by applying 23
Seongwoo Choi, Dongjae Lee, Yera Choi, Kwonhee Choi, Eunji Shin, Hyungcheon Kim, Myeonggeun Cha, Hyeongdo Song, Chul Yoo   +8 more
doaj   +1 more source

Highly electro-conductive B4C–TiB2 composites with three-dimensional interconnected intergranular TiB2 network

Journal of Advanced Ceramics, 2023
To achieve lightweight B4C-based composite ceramics with high electrical conductivities and hardness, B4C–TiB2 ceramics were fabricated by reactive spark plasma sintering (SPS) using B4C, TiC, and amorphous B as raw materials.
Jun ZHAO, Dong WANG, Xing JIN, Xiang DING, Jianhua ZHU, Songlin RAN   +5 more
doaj   +1 more source

Probing the Emission States of PSR J1107−5907 [PDF]

, 2019
The emission from PSR J1107−5907 is erratic. Sometimes the radio pulse is undetectable, at other times the pulsed emission is weak, and for short durations the emission can be very bright.
Cameron, Andrew, Dai, Shi, Hobbs, George, Hollow, Robert, Kaczmarek, Jane F., Kerr, Matthew, Li, Di, Miao, Chenchen, Ravi, Vikram, Shannon, Ryan, Wang, Jingbo, Wang, Shen, Xu, Heng, Xu, Renxin, Yuan, Mao, Zhang, Lei, Zhang, Songbo   +16 more
core   +3 more sources

The Caenorhabditis elegans DPF‐3 and human DPP4 have tripeptidyl peptidase activity

FEBS Letters, EarlyView.
The dipeptidyl peptidase IV (DPPIV) family comprises serine proteases classically defined by their ability to remove dipeptides from the N‐termini of substrates, a feature that gave the family its name. Here, we report the discovery of a previously unrecognized tripeptidyl peptidase activity in DPPIV family members from two different species.
Aditya Trivedi, Rajani Kanth Gudipati
wiley   +1 more source

"Open source" soluciones para la sostenibilidad [PDF]

, 2011
No Emission Monday is an ´open source´ community that creates new perspectives and solutions towards a more sustainable future. Accordingly, ´open source´ is a powerful tool to the climate change as a main concern of a growing number of individuals and
No Emission Monday
core   +1 more source

Warm Dust and Spatially Variable PAH Emission in the Dwarf Starburst Galaxy NGC 1705

, 2006
We present Spitzer observations of the dwarf starburst galaxy NGC 1705 obtained as part of SINGS. The galaxy morphology is very different shortward and longward of ~5 microns: short-wavelength imaging shows an underlying red stellar population, with the ...
Aigen Li, Brent A. Buckalew, Bruce T. Draine, Charles W. Engelbracht, Claus Leitherer, Daniel A. Dale, Daniela Calzetti, David J. Hollenbach, de Jong T., Eric J. Murphy, Fabian Walter, George H. Rieke, George Helou, George J. Bendo, Haas M., Helene Roussel, John M. Cannon, John‐David T. Smith, Karl D. Gordon, Kartik Sheth, Lee Armus, Lemke D., Marcia J. Rieke, Martin J. Meyer, Michael W. Regan, Michele D. Thornley, Robert C. Kennicutt, Jr., Stanimirovic S., Thomas H. Jarrett   +28 more
core   +1 more source

QED can explain the non-thermal emission from SGRs and AXPs : Variability [PDF]

, 2006
Owing to effects arising from quantum electrodynamics (QED), magnetohydrodynamical fast modes of sufficient strength will break down to form electron-positron pairs while traversing the magnetospheres of strongly magnetised neutron stars. The bulk of the
A.Y. Potekhin, C. Thompson, C. Thompson, F. Hulleman, F.P. Gavriil, G.V. Jung, J.S. Heyl, J.S. Heyl, J.S. Heyl, J.S. Heyl, J.S. Heyl, J.S. Heyl, J.S. Heyl, J.S. Heyl, Jeremy S. Heyl, K. Hurley, K. Hurley, K.Y. Sanbonmatsu, L. Kuiper, L. Kuiper, P.R. Hartog den, R.E. Rothschild, S. Mereghetti, S. Molkov, T. Murakami, V.M. Kaspi, V.V. Usov   +26 more
core   +2 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Substrate specificity of Burkholderia pseudomallei multidrug transporters is influenced by the hydrophilic patch in the substrate‐binding pocket

FEBS Letters, EarlyView.
Multidrug transporters BpeB and BpeF from the Gram‐negative pathogen Burkholderia pseudomallei have a hydrophilic patch in their substrate‐binding pocket. Drug susceptibility tests and growth curve analyses using an Escherichia coli recombinant expression system revealed that the hydrophilic patches of BpeB and BpeF are involved in the substrate ...
Ui Okada, Satoshi Murakami
wiley   +1 more source

Klein-Nishina effects on the high-energy afterglow emission of gamma-ray bursts

, 2009
Extended high-energy(>100MeV) gamma-ray emission that lasts much longer than the prompt sub-MeV emission has been detected from quite a few gamma-ray bursts (GRBs) by Fermi Large Area Telescope (LAT) recently.
Abdo, Abdo, Abdo, De Pasquale, Gao, Ghisellini, Gou, Granot, Hao-Ning He, He, Kumar, Kumar, Li, Nakar, Pe'er, Sari, Sari, Wang, Wang, Wang, Xiang-Yu Wang, Xue-Feng Wu, Zhang, Zhuo Li, Zi-Gao Dai   +24 more
core   +1 more source