Results 141 to 150 of about 727,566 (361)
O transporte de poluentes via escoamento superficial em áreas agrícolas, principalmente na forma solúvel, é considerado um problema ambiental, mesmo em sistemas conservacionistas de preparo do solo.
Adriana Timofiecsyk+3 more
doaj
LXXXV.—The magnetic rotatory power of solutions of ammonium and sodium salts of some of the fatty acids [PDF]
W. H. Perkin
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A scalable nano‐/micro‐confinement strategy is developed, where polyacrylamide (PAM)‐LiCl hybrid desiccants are confined within hollow nanoparticles (HNPs) and assembled into raspberry‐like microbeads. The beads have a hydrogel‐rich core and an NP‐rich shell for fast absorption and desorption, releasing water 13.6 L kg⁻¹ day⁻¹.
Yunchan Lee+6 more
wiley +1 more source
Action of ammonium chloride upon natrolite, scolecite, prehnite and pectolite [PDF]
F. W. Clarke, George Steiger
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A battery‐free, wireless device for real‐time monitoring of pressure injury and hygiene integrates pressure (≈10 kPa), temperature (≈40 °C), and NH3 gas sensing with antibacterial functionality. Enabled by near‐field communication, it ensures simultaneous, interference‐free mechanical and chemical monitoring, offering a practical solution for pressure ...
Myungwoo Choi+19 more
wiley +1 more source
Atmospheric Doping of Stretchable Polymer Semiconductors for Skin Electronics
An atmospheric doping system using oxygen molecules in air as dopants is introduced for stretchable polymer semiconductors. The chemisorbed oxygen molecules act as acceptor, lead to increase not only the hole concentration of the semiconductor film over two orders of magnitude (3.37 × 1017 cm−3) but also electrical properties of the field‐effect ...
Min Woo Jeong+7 more
wiley +1 more source
Biological filtration is a process that can be used for ammonium removal from water. The removal of ammonium is based on the nitrification process. Nitrification depends on many factors, such as water quality and filtration process parameters.
Dajana Dragić+2 more
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On the Connection between Chemical Constitution and Physiological Action:—On the Physiological Action of the Salts of Ammonia, of Tri-niethylamine, and of Tetramethyl-ammonium; of the Salts of Tropia, and of the Ammonium Bases derived from it; and of Tropic, Atropic, and Isatropic Acids and their Salts. With further details on the Physiological Action of the Salts of Methyl-Strychnium and of Ethyl-Strychnium [PDF]
A. Crum Brown, Thomas R. Fraser
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Internally catalyzed siloxane dynamic chemistry is demonstrated resulting from amides covalently linked through alkyl chains to siloxanes. The alkyl length in the siloxane‐containing monomer tunes the network cross‐link density. Siloxane exchange dynamics are faster with increasing cross‐link density, because associative exchange is second order in ...
Nathan S. Purwanto+5 more
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QUATERNARY AMMONIUM BASES IN THE COELENTERATES
John H. Welsh, PEGGY B. PROCK
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