Results 81 to 90 of about 87,044 (337)

Demonstration of a Near-IR Laser Comb for Precision Radial Velocity Measurements in Astronomy [PDF]

, 2015
We describe a successful effort to produce a laser comb around 1.55 $\mu$m in the astronomical H band using a method based on a line-referenced, electro-optical-modulation frequency comb.
C. Beichman, E. C. Martin, E. Furlan, G. Doppmann, G. Vasisht, G. Ycas, J. Gagne, J. Li, J. Sandhu, K. Vahala, M. Bottom, M. P. Fitzgerald, P. Chen, P. Gao, P. Plavchan, S. Diddams, S. Leifer, X. Yi   +17 more
core   +3 more sources

Ion‐Regulating Membranes with Surface‐Enriched Charge Networks Enabling Stable Zinc‐Manganese Flow Batteries

Advanced Materials, EarlyView.
An ion‐regulating membrane is designed with a surface‐concentrated positively‐charged Zn2⁺ crosslinked network for zinc‐manganese flow batteries. The membrane effectively mitigates proton crossover and regulates zinc ion distribution to avoid dendrites, thus significantly improving areal capacity and prolonging the lifespan with a record accumulated ...
Jine Wu, Jiafeng Lei, Yi‐Chun Lu
wiley   +1 more source

The Design of a Photonic Crystal Fiber for Hydrogen Cyanide Gas Detection

Photonics
Hydrogen cyanide gas is a dangerous and fatal gas that is one of the causes of air pollution in the environment. A small percentage of this gas causes poisoning and eventually death.
Abdolreza Pourfathi Fard, Somayeh Makouei, Morad Danishvar, Sebelan Danishvar   +3 more
doaj   +1 more source

Scalable and Multifunctional PAN‐MXene Composite Fibers for Thermal Management, Photothermal Conversion, Energy Harvesting, and Sensing for Wearable Applications

Advanced Materials, EarlyView.
Electrospun PAN‐MXene nanofibers and yarns integrate enhanced thermal conductivity, photothermal conversion, and triboelectric energy harvesting within a flexible architecture. Interconnected MXene networks promote efficient phonon transport, while their surface chemistry strengthens tribo‐negative behavior, enabling a high power density of 432.7 mW m ...
Ahmadreza Moradi, Piotr K. Szewczyk, Urszula Stachewicz   +2 more
wiley   +1 more source

Di-μ2-cyanido-dicyanidobis{2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolato}(1,4,8,11-tetraazacyclotetradecane)dichromium(III)nickel(II) methanol disolvate

Acta Crystallographica Section E, 2010
In the title compound, [Cr2Ni(C16H14N2O2)2(CN)4(C10H24N4)]·2CH3OH, each [Cr(salen)(CN)2] unit {salen is 2,2′-[ethane-1,2-diylbis(nitrilomethylidyne)]diphenolate} acts as a monodentate ligand through one of its two cyanide groups N ...
Shi Wang, Wenrui He, Xuehua Ding, Wei Huang   +3 more
doaj   +1 more source

Atmospheric Research and Monitoring Study of Hazardous Substances [PDF]

, 1985
Hazardous Waste Research and Information Center Illinois Department of Energy and Natural ...
Gatz, Donald F., Sweet, Clyde W.
core  

The Peculiar Atmospheric Chemistry of KELT-9b [PDF]

, 2018
The atmospheric temperatures of the ultra-hot Jupiter KELT-9b straddle the transition between gas giants and stars, and therefore between two traditionally distinct regimes of atmospheric chemistry.
Deitrick, Russell, Demory, Brice-Olivier, Heng, Kevin, Hoeijmakers, H. J., Kitzmann, Daniel, Lendl, Monika, Malik, Matej, Rimmer, Paul B., Tsai, Shang-Min   +8 more
core   +2 more sources

Tunable Sensitivity in PAN/CNF/PEDOT:PSS Nanofiber‐Based Piezocapacitive Sensors

Advanced Materials Interfaces, EarlyView.
This study demonstrates highly tunable, flexible pressure sensors made from a nanofibrous composite of polyacrylonitrile (PAN) and carbon nanofibers (CNF) or poly(3,4‐ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS). By adjusting filler type, concentration, and mat thickness, the sensors achieve large sensitivity improvements, stable ...
Alireza Gholamhoseini, Sheyda Mirjalali, Aisan Nouri, David Payne, Noushin Nasiri   +4 more
wiley   +1 more source

A Cold Stress‐Activated Endocrine Sentinel Chemical Hormone Promotes Insect Survival via Mitochondrial Adaptations Through the Adipokinetic Hormone Receptor

Advanced Science, EarlyView.
Seasonal cold adaptation is vital for insect survival, yet the molecular mechanisms linking diapause to mitochondrial resilience remain largely unresolved. We identify ascaroside C9 (asc‐C9) as a key endocrine signal that enhances diapause survival during cold stress by activating the AKHR–PGC1α–UCP4 axis, thereby driving cold‐induced lipolysis and ...
Jiao Zhou, Junxian Chen, Hongxia Zhang, Lu Guo, Kevin Mai, Elijah Abraham, Dilip V. Prajapati, Yue Chang, Jing Ning, Xinchen Wang, Defeng Li, Dan‐Dan Zhang, Jianghua Sun, Rebecca A. Butcher, Lilin Zhao   +14 more
wiley   +1 more source

Organic crystalline polymers: structural properties and way to synthesis under high pressure

, 2018
We consider different structures, which can be obtained by polymerization of aromatic organic molecules under high pressures. These 2D and 3D covalently bonded organic polymers and their functionalization can pave the way to production of energy storage ...
Brazhkin, V. V., Kondrin, M. V., Lebed, Y. B., Nikolaev, N. A., Shulga, Y. M.   +4 more
core   +1 more source