Results 61 to 70 of about 447,422 (304)

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Review of physical and chemical characteristics and heavy metal migration rules of coal gasification slag

Meitan kexue jishu
The resource utilization of coal gasification slag has become a research focus in the field of coal-based solid waste. The physical and chemical characteristics and the heavy metal migration rules of coal gasification slag are very important for its ...
Changjian LIAO, Jing WANG, Ping JIN, Zhiyu LIU, Wanyi XU, Kun WANG   +5 more
doaj   +1 more source

Natural Quintessence with Gauge Coupling Unification

, 2001
We show that a positive accelerating universe can be obtained simply by the dynamics of a non-abelian gauge group. It is the condensates of the chiral fields that obtain a negative power potential, below the condensation scale, and allow for a ...
A. Balbi, A. de la Macorra, A. de la Macorra, A. G. Riess, A. Masiero, A. R. Liddle, C. P. Burgess, C. Stephan-Otto, E. J. Copeland, I. Affleck, I. Zlatev, I. Zlatev, K. Freese, K. Intriligator, M. Birkel, P. Binetruy, P. Binetruy, P. de Bernardis, P. J. E. Peebles, P. J. E. Peebles, P. Langacker, P. M. Garnavich, S. M. Carroll, S. Perlmutter, S. Perlmutter, T. Saini, U. Amaldi   +26 more
core   +3 more sources

Ketogenic Diet as an Epigenetic Therapy in SETD1B‐Related Epilepsy

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Histone lysine methyltransferases such as SETD1B regulate chromatin structure and gene transcription. Ketone bodies, including butyrate, act as histone deacetylase inhibitors. We report a 4‐year‐old boy with SETD1B‐related absence epilepsy, refractory to conventional medications, who achieved sustained > 90% seizure reduction on the Modified ...
Erica Tsang, Brian S. Gloss, Jessica P. Hayes, Andrew J. A. Holland, Manoj P. Menezes, Joceline A. Branson, Shekeeb S. Mohammad, Jingya J. Yan, Shrujna Patel, Velda X. Han, Russell C. Dale   +10 more
wiley   +1 more source

Dataset of mineral contents of fine-sand and silt-sized soil particles from deserts in China and Mongolia

Data in Brief, 2021
There are over 70 types of mineral species in desert soils. Previous data have focused on major mineral contents and thus, the identification of minor mineral species is lacking. The diversity of minor mineral species was investigated in 19 surficial sediments from deserts in China and Mongolia. A modern scanning electron microscope (SEM)-based in-situ
Tong He, Jessica Gray, Ying Gu
openaire   +3 more sources

A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller

International Journal of Adaptive Control and Signal Processing, EarlyView.
Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg, Paulo Jefferson Dias de Oliveira Evald, Shivam Chaturvedi, Hilton Abilio Gründling, Rodrigo Varella Tambara, Wencong Su   +5 more
wiley   +1 more source

Study on the special resistance characteristics of fly ash

Energy Reports, 2022
Aiming at the influence of specific resistance on electrostatic precipitator in power plant, experiments were carried out on fly ash produced by CFB boiler and pulverized coal furnace, and carbon content analysis was carried out on fly ash of CFB boiler ...
Qian Yang, Zining Li, Yuchen Xu
doaj   +1 more source

Effect of silica fume additions on the hydration behaviour of calcium aluminates [PDF]

, 1997
In the recent refractory castables technology, the calcium aluminate cement is being replaced in increasing proportion by very fine matrix components, such as silica fume and colloidal alumina.
Fumo, Daniel A., Segadães, Ana M.
core   +1 more source

Experimental Evaluation of 100Cr6 Steel Microindented Surfaces Under Lubricated Nonconformal Point Contacts

Advanced Engineering Materials, EarlyView.
The tribological behavior of 100Cr6 steel spheres textured via Vickers microindentation is evaluated under lubricated sliding by varying both dimple size and density. Fine and dense textures significantly reduce friction across all lubrication regimes, while large dimples increase it.
Farideh Davoodi, Pasquale Guglielmi, Gianfranco Palumbo, Giuseppe Carbone   +3 more
wiley   +1 more source

Recycled powder as filler admixture in cementitious systems : production and characterization [PDF]

, 2016
In concrete production, aggregate represents almost 75% of the materials used. The exploitation of natural sources for this purpose also causes an environmental impact, while deposition of wastes from construction industry pollutes soil and water.
Alderete, Natalia Mariel, Laurente, Rocio D, Villagran Zaccardi, Yury, Zega, Claudio J   +3 more
core   +1 more source