Results 21 to 30 of about 87,867 (258)

Investigation of pre-concentration of the Lece ore using dense medium gravity concentration [PDF]

Podzemni Radovi
The pre-concentration of Pb-Zn ores is commonly performed using gravity concentration in a dense medium. The primary objective of this process is to remove coarse-grained gangue from fully crushed ore using a cost-effective method, while keeping the loss
Todić Slavko, Lazić Predrag, Gavrilović Tamara   +2 more
doaj   +1 more source

Concentric cone antihydrogen gravity experiment [PDF]

AIP Conference Proceedings, 2019
An antihydrogen gravity experiment is proposed that could be conducted at the CERN Antiproton Decelerator facility to determine the directionality of the acceleration of antihydrogen in earth’s gravitational field. The experiment would consist of an antihydrogen source located in a cylindrical vacuum chamber at the common vertex of an azimuthally ...
Patel, S. S., Sun, S. R., Ordonez, Carlos A.   +2 more
openaire   +2 more sources

Constrained Two-Dimensional Inversion of Gravity Data

Journal of Mathematical and Fundamental Sciences, 2014
The non-uniqueness in the solution of gravity inversion poses a major problem in the interpretation of gravity data. To overcome this ambiguity, “a priori” information is introduced by minimizing a functional that describes the geometrical or physical ...
Hendra Grandis , Darharta Dahrin
doaj   +1 more source

SATELLITE STUDIES OF IONOSPHERIC MANIFESTATIONS OF ACOUSTIC-GRAVITY WAVES

Radio Physics and Radio Astronomy, 2014
The response of the ionospheric plasma on the propagation of acoustic-gravity waves (AGW) studied at altitudes of 250 − 350 km using the satellite Dynamics Explorer 2 measurements. Wave perturbations are analyzed according to simultaneously measured data
A. V. Bespalova, A. K. Fedorenko
doaj   +1 more source

Promiscuous stimulation of HSP70 ATPase activity by parasite‐derived J‐domains

FEBS Open Bio, EarlyView.
The malaria parasite Plasmodium falciparum exports three highly homologous yet functionally divergent J‐domain proteins into human erythrocytes. Here, we show that J‐domains isolated from all three proteins effectively stimulate the ATPase activity of both endogenous host and exported parasite HSP70 chaperones.
Julian Barth, Moritz Koch, Le‐Han Rössner, Johanna Eichhorn, Denys Pogoryelov, Matthias P. Mayer, Jude M. Przyborski   +6 more
wiley   +1 more source

Rapid screening of staphylokinase protein variants using an unpurified cell‐free expression system

FEBS Open Bio, EarlyView.
An unpurified cell‐free protein synthesis (CFPS) platform enables rapid functional screening of staphylokinase variants. Direct plasminogen‐activation assays performed in microplate format provide real‐time activity readouts, allowing rapid identification and ranking of variants with improved or reduced fibrinolytic activity without protein ...
Maria Tomková, Veronika Hovanová, Jiri Damborsky, Erik Sedlák   +3 more
wiley   +1 more source

Versatile vector tools for efficient protein screening across multiple expression systems

FEBS Open Bio, EarlyView.
A unified vector toolkit enables rapid protein expression screening across E. coli, insect, and mammalian cells. A single primer pair amplifies the target gene, which is inserted into any vector via a standardized interface. This streamlined workflow eliminates repeated cloning steps, accelerating the identification of optimal expression conditions for
Zhimin Zhu, Yaqing Liu, Lei Qin, Feng Yu, Qisheng Wang, Yahui Liu   +5 more
wiley   +1 more source

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

Advanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

Economic heavy minerals in the stream sediments of wadi Shaàb, southern coast of the Red Sea, Egypt; characterization and upgrading for investigation of their potential recovery

Bulletin of the Mineral Research and Exploration
The southern coast of the Red Sea is one of the most promising areas for the occurrence of economic minerals. Therefore, studying the characterization and evaluation of these minerals in the Wadi Shaàb Quaternary sediments and investigating their ability
Mohamed Diab, Asmaa El-moghazy, Ahmed Ismail, Marwa Abdel-azeem, Abdel Hay El Shafey, Bahaa Emad, Hassan Shahin, Mustafa Bayoumi, Mona Fawzy   +8 more
doaj   +1 more source

Expressing the quantity of urinary analytes: a discussion of some issues arising from the monitoring of the menstrual cycle

Open Health, 2020
Practical domestic monitoring of the menstrual cycle requires measurements of urinary metabolites of reproductive hormones: oestrone glucuronide (E1G) and pregnanediol glucuronide (PdG). Data reported in the literature are expressed as (i) concentration,
Brown Simon, Cooke Delwyn G., Blackwell Leonard F.   +2 more
doaj   +1 more source