Results 41 to 50 of about 4,834,015 (307)

Research Progress on Process Optimization of Metal Materials in Wire Electrical Discharge Machining

open access: yesMetals
Wire electrical discharge machining (WEDM), as a significant branch of non-traditional machining technologies, is widely applied in fields such as mold manufacturing and aerospace due to its high-precision machining capabilities for hard and complex ...
Xinfeng Zhao   +3 more
doaj   +1 more source

Enhanced nitrogen removal via Yarrowia lipolytica-mediated nitrogen and related metabolism of Chlorella pyrenoidosa from wastewater

open access: yesFrontiers in Bioengineering and Biotechnology, 2023
We investigated the optimum co-culture ratio with the highest biological nitrogen removal rate, revealing that chemical oxygen demand, total nitrogen (TN), and ammoniacal nitrogen (NH3-N) removal was increased in the Chlorella pyrenoidosa and Yarrowia ...
Yuming Zhong   +6 more
doaj   +1 more source

A provisional survey of the interaction between net photosynthetic rate, respiratory rate, and thallus water content in some New Zealand cryptogams [PDF]

open access: yes, 1980
The effect of water content on photosynthetic and respiratory rates in eight lichen species and one bryophyte species were studied using an injection infrared gas analyser technique. All species snowed a strong relationship between net assimilation rate (
Brown, D.H.   +2 more
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

open access: yesFEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan   +5 more
wiley   +1 more source

Effect of bending on the geometry and collapse pressure of helical steam generator tubes: Numerical study

open access: yesNuclear Engineering and Technology
This study investigates the effects of bending processes on the geometry and collapse pressure of helical steam generator tubes used in Small Modular Reactors (SMRs).
M. Park, M.W. Lee, K. Ahn, G.G. Youn
doaj   +1 more source

Determining Arsenic Distribution in Urban Soils: A Comparison with Nonurban Soils

open access: yesThe Scientific World Journal, 2002
There are many challenges in the determination of arsenic background concentrations in soils. However, these challenges are magnified when those determinations are carried out on urban soils.
Tait Chirenje, L.Q. Ma, E.J. Zillioux
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

open access: yesFEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee   +3 more
wiley   +1 more source

Neural Network Compensation Control for Output Power Optimization of Wind Energy Conversion System Based on Data-Driven Control

open access: yesJournal of Control Science and Engineering, 2012
Due to the uncertainty of wind and because wind energy conversion systems (WECSs) have strong nonlinear characteristics, accurate model of the WECS is difficult to be built.
T. Li, A. J. Feng, L. Zhao
doaj   +1 more source

Water sorption of light–cured composites [PDF]

open access: yesAl-Rafidain Dental Journal, 2005
The aim of the present research was to study the percentage water sorption and solubility of Esthet composite resin based on an ethoxylated bisphenol A glycol dimethacrylate (Bis–EMA) and Heliomolar composite resin based on bisphenol A glycol ...
Ammar Kh Al–Nori
doaj   +1 more source

A future vision for the open air theater performances in Minya

open access: yesJournal of Architecture, Art & Humanistic Science, 2021
El Minya governorate is well known for its great historical, cultural, and geographical values. This atmosphere inevitably gave its residents an amazing advantage to excel in the artistic fields.
Hesham Elgabbas
doaj   +1 more source

Home - About - Disclaimer - Privacy