Results 131 to 140 of about 672,871 (380)

Ammonia Assimilation

open access: yes, 1980
Publisher Summary This chapter focuses on ammonia assimilation and discusses the mechanisms by which the ammonia produced is incorporated into organic compounds. Nitrate and dinitrogen gas, two of the major sources of inorganic nitrogen available to plants, are reduced to ammonia before the nitrogen is incorporated into organic matter.
Miflin, B. J., Lea, P. J.
openaire   +2 more sources

Pioneering the Future: Principles, Advances, and Challenges in Organic Electrodes for Aqueous Ammonium‐Ion Batteries

open access: yesAdvanced Materials, EarlyView.
Leveraging the numerous advantages of ammonium‐ion (NH₄⁺)—including cost‐effectiveness, low corrosiveness, preferential orientation, and rapid diffusion kinetics—aqueous NH₄⁺ batteries (AAIBs) have gained significant attention. This review highlights and evaluates the progress of AAIBs utilizing organic electrode materials such as small molecules ...
Mangmang Shi, Xiaoyan Zhang
wiley   +1 more source

Evaluation of a spacecraft nitrogen generator [PDF]

open access: yes
An experiment was completed to demonstrate that low ammonia concentrations in the product nitrogen stream are possible using the staging concept. Mixtures of nitrogen, hydrogen and ammonia were fed into a temperature controlled packed bed ammonia ...
Knebel, W. J., Marshall, R. D.
core   +1 more source

Method for monitoring urea and ammonia in wine and must by flow injection-pervaporation [PDF]

open access: yes, 2002
An easy to automate flow-injection-pervaporation method for monitoring urea and ammonia in must and wine was developed. The method is based on separation of the ammonia from the sample matrix by pervaporation followed by its reaction with salicylate ...
Almy   +15 more
core   +1 more source

Spray‐Assisted Fabrication of Cellulose Photonic Pigments on Superhydrophobic Surfaces

open access: yesAdvanced Materials, EarlyView.
A method to directly produce structurally colored microparticles by drying cholesteric cellulose nanocrystal microdroplets on a superhydrophobic surface is reported. This approach has several key advantages that can unlock large‐scale fabrication of sustainable photonic pigments, including exploiting existing industrial techniques (e.g. aerosolization),
Jianing Song   +7 more
wiley   +1 more source

Ammonia in circumstellar environment of V Cyg [PDF]

open access: yesarXiv, 2019
The HIFI instrument on board of the Herschel Space Observatory (HSO) has been very successful in detecting molecular lines from circumstellar envelopes around evolved stars, like massive red supergiants, Asymptotic Giant Branch (AGB) and post-AGB stars, as well as planetary nebulae.
arxiv  

A Library of Polyphenol‐Amino Acid Condensates for High‐Throughput Continuous Flow Production of Nanomedicines with Ultra‐High Drug Loading

open access: yesAdvanced Materials, EarlyView.
A scalable and flexible library of natural, renewable tea polyphenol, and amino acid condensate colloidal spheres, synthesized via a one‐step process, facilitates the preparation of ultra‐high drug‐loading nanomedicines with precise size control and uniform dispersion using continuous‐flow microfluidics.
Zeng Yi   +8 more
wiley   +1 more source

Analysis of Risk Factors for Postoperative Delirium After Liver Transplantation

open access: yesNeuropsychiatric Disease and Treatment, 2020
Junguo Chen, Hao Wang, Zhijun He, Ting Li Department of Organ Transplantation, The Second Xiangya Hospital, Central South University, Changsha, People’s Republic of ChinaCorrespondence: Ting LiLiver Transplantation, The Second Xiangya Hospital, No.
Chen J, Wang H, He Z, Li T
doaj  

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