Results 11 to 20 of about 1,801,142 (276)
Justice (Vol. 10, Iss. 5) [PDF]
, 1928 v.18:suppl ...
San Diego Shell Club +1 more
core +2 more sources
International Journal of Geometric Methods in Modern Physics, 2004 We define on-shell symmetries and characterize them for Lagrangian systems. The terms appearing in the variation of the Poincaré–Cartan form, which vanish because of field equations, are found to be strongly constrained if the space of solutions has to be preserved.
FATIBENE, Lorenzo +2 more
openaire +3 more sources
Impedance response of asphaltene solutions: Effect of solvation
Fuel Communications, 2021 The present work uses a combination of X-ray diffraction (XRD) analysis and dielectric spectroscopy (DES) to study asphaltene aggregation and interactions between these aggregate and maltene phases, with the variations in solvency power of the maltenes ...
Chandrakant Bhogle +4 more
doaj +1 more source
CENÁRIOS PARA O SETOR DE TRANSPORTES NO BRASIL
Transportes, 1997 O Grupo Shell começou a utilizar a técnica de cenários em seu processo de planejamento no final dos anos 60. Isto foi feito depois de constatar que a velocidade de mudanças no meio ambiente tinha chegado a tal ponto que não permitiria mais o uso de ...
Goret P. Paulo +8 more
doaj +1 more source
Geofluids, 2022 Estimating water saturation via conventional logging tool such as resistivity cannot provide an accurate solution in a formation with low conductivity water and tight porosity. As an alternative, we employed a dielectric permittivity, which makes it easy
Yongchae Cho +3 more
doaj +1 more source
Shell‐by‐Shell Functionalization of Inorganic Nanoparticles [PDF]
Chemistry – A European Journal, 2020 AbstractThe current state of the hierarchical chemical functionalization of inorganic nanoparticles (NPs) by shell‐by‐shell (SbS)‐assembly of organic layers around the NP cores is summarized. This supramolecular functionalization concept is based on two steps: 1) the covalent grafting of a first ligand–shell consisting of, for example, long chain ...
Lisa M. S. Stiegler +2 more
openaire +3 more sources
Sub-20 nm Core-Shell-Shell Nanoparticles for Bright Upconversion and Enhanced Förster Resonant Energy Transfer. [PDF]
, 2019 Upconverting nanoparticles provide valuable benefits as optical probes for bioimaging and Förster resonant energy transfer (FRET) due to their high signal-to-noise ratio, photostability, and biocompatibility; yet, making nanoparticles small yields a ...
Alivisatos, A Paul +9 more
core +1 more source
Improved Temperature Measurement in Batch Reactors
Measurement + Control, 1974 Good process control can be hindered by the build-up of fouling on temperature measuring elements. The problem can be particularly acute for batch processes, where deposits on the temperature bulbs may lead to dangerous reaction conditions during the ...
M. Wansborough, A. Maarleveld
doaj +1 more source
Dynamic effects of fault modeling on stair-step and corner-point grids
Journal of Petroleum Exploration and Production Technology, 2021 Fault modeling has become an integral element of reservoir simulation for structurally complex reservoirs. Modeling of faults in general has major implications for the simulation grid.
Faruk O. Alpak, Tianhong Chen
doaj +1 more source
From Shell Logs to Shell Scripts [PDF]
, 2001 Analysing the use of a Unix command shell is one of the classic applications in the domain of adaptive user interfaces and user modelling. Instead of trying to predict the next command from a history of commands, we automatically produce scripts that automate frequent tasks. For this we use an ILP association rule learner.
Jacobs, Nico, Blockeel, Hendrik
openaire +2 more sources