Results 121 to 130 of about 143,159 (315)

Influences of Super-Gravity Field on Aluminum Grain Refining

, 2010
The influence of a super-gravity field on metal grain refining has been mainly investigated using industrial pure aluminum as an example. The relationship between the super-gravity field (gravity coefficient of less than 1000) and the grain size in the ...
Wang, Zhi, Wang, Mingyong, Zhao, Lixin, Guo, ZC, Guo, Zhancheng   +4 more
core   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

Advanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang, Jimin Fu, Gesa Zhang, Zhihua Liang, Boxun Zhang, Haimin Yao   +5 more
wiley   +1 more source

The Study of Geological Structures in Suli and Tulehu Geothermal Regions (Ambon, Indonesia) Based on Gravity Gradient Tensor Data Simulation and Analytic Signal

Geosciences, 2017
In early 2017, the geothermal system in the Suli and Tulehu areas of Ambon (Indonesia) was investigated using a gravity gradient tensor and analytic signal. The gravity gradient tensor and analytic signal were obtained through forward modeling based on a
Richard Lewerissa, Sismanto Sismanto, Ari Setiawan, Subagyo Pramumijoyo   +3 more
doaj   +1 more source

The earth's gravity field recovery using the third invariant of the gravity gradient tensor from GOCE. [PDF]

Sci Rep, 2021
Cai L, Wan X, Hsu H, Ran J, Meng X, Luo Z, Zhou Z.   +6 more
europepmc   +1 more source

Co1/Ru Single‐Atom Alloy Catalyst for Sustainable Polypropylene Hydrogenolysis to Long‐Chain Liquid Products

Advanced Materials, EarlyView.
A titania‐supported Co1/Ru single‐atom alloy catalyst enables efficient polypropylene hydrogenolysis. Ru─Co─Ru motifs maintain Ru activity while suppressing excessive chain scission to gaseous products. Both virgin and waste plastics achieve high, environmentally and economically optimal C11+ liquid yields, supporting sustainable chemical recycling ...
Yuzhen Ge, Yimeng Jin, Alexandra Krestnikova, Sibei Zou, Antonio J. Martín, Gonzalo Guillén‐Gosálbez, Javier Pérez‐Ramírez   +6 more
wiley   +1 more source

Mass variation observing system by high low inter-satellite links (MOBILE) – a new concept for sustained observation of mass transport from space

Journal of Geodetic Science, 2019
As changes in gravity are directly related to mass variability, satellite missions observing the Earth’s time varying gravity field are a unique tool for observing mass transport processes in the Earth system, such as the water cycle, rapid changes in ...
Pail R., Bamber J., Biancale R., Bingham R., Braitenberg C., Eicker A., Flechtner F., Gruber T., Güntner A., Heinzel G., Horwath M., Longuevergne L., Müller J., Panet I., Savenije H., Seneviratne S., Sneeuw N., van Dam T., Wouters B.   +18 more
doaj   +1 more source

Bandwidth correction of Swarm GPS carrier phase observations for improved orbit and gravity field determination. [PDF]

GPS Solut, 2021
Schreiter L, Montenbruck O, Zangerl F, Siemes C, Arnold D, Jäggi A.   +5 more
europepmc   +1 more source

Topological defects in low-energy string gravity [PDF]

, 1999
Cosmologists are interested in topological defects as a possible source for the primordial density perturbations which seeded structure formation through gravitational instability.
Dando, Owen Robert
core  

Time-variable gravity field recovery from reprocessed GOCE precise science orbits [PDF]

, 2021
The satellite mission GOCE (Gravity Field and Steady-State Ocean Circulation Explorer) observed the Earth's gravity field between November 2009 and October 2013 with an unprecedented accuracy and a high spatial resolution.
Arnold, Daniel, Grombein, Thomas, Jäggi, Adrian   +2 more
core  

Oppositely Charged Single Enzyme Nanogels Form Versatile Coacervates for Efficient Enzyme Cascade Catalysis

Advanced Materials, EarlyView.
Oppositely charged single enzyme nanogels (SENs) phase‐separate into bi‐enzymatic coacervate microdroplets, acting as both scaffold and functional units. By tuning SEN ratios, these coacervates create specific microenvironments that enable selective small‐molecule enrichment and efficient intermediate diffusion.
Andoni Rodriguez‐Abetxuko, Nadia A. Erkamp, Neshat Moslehi, Yannick H. A. Leurs, Lars Paffen, Işil Yeşil Gür, Jana Stojanović, Hugo Brasselet, Laura van der Weel, Ulf Hanefeld, Ilja K. Voets, Jan C. M. van Hest   +11 more
wiley   +1 more source