Results 21 to 30 of about 15,062 (254)

Pushdown Compression [PDF]

open access: yes, 2007
The pressing need for eficient compression schemes for XML documents has recently been focused on stack computation [6, 9], and in particular calls for a formulation of information-lossless stack or pushdown compressors that allows a formal analysis of ...
Albert, Pilar   +3 more
core   +8 more sources

A Backend Framework for the Efficient Management of Power System Measurements [PDF]

open access: yes, 2016
Increased adoption and deployment of phasor measurement units (PMU) has provided valuable fine-grained data over the grid. Analysis over these data can provide insight into the health of the grid, thereby improving control over operations. Realizing this
Bass, Robert   +5 more
core   +3 more sources

Technique of PDC Bit Complexity Identification While Drilling Based on Surface Data

open access: yesShiyou jixie, 2022
Identification of downhole PDC bit complexities is one of the main challenges in drilling.Accurate identification of PDC bit complexities such as bit wear and stick-slip vibration is of great significance for improving drilling efficiency and defining ...
Chen Changchang   +5 more
doaj  

Base station transceiver design in a digital wireless local loop system [PDF]

open access: yes, 1998
During the past ten years the mobile radio communications industry has significantly grown. The miniaturization technologies have allowed smaller and smaller portable terminal radio equipment.
Figueiredo, J.   +6 more
core   +1 more source

Performance evaluation of MPLS-enabled communications infrastructure for wide area monitoring systems [PDF]

open access: yes, 2015
In order to obtain the transient power system measurement information, Wide Area Monitoring Systems (WAMS) should be able to collect Phasor Measurement Unit (PMU) data in a timely manner.
Ashton, PM   +3 more
core   +1 more source

The Wear Analysis Model of Drill Bit Cutting Element with Torsion Vibration

open access: yesAdvances in Mechanical Engineering, 2015
Due to some deficiencies in the existing researches of cutting element wear of polycrystalline diamond compact (PDC) drill bit and to reduce the wear rate of cutting element of PDC bit, accurately illustrate the effect of tooth-distributing angle on ...
Jialin Tian   +7 more
doaj   +1 more source

Coupled map gas: structure formation and dynamics of interacting motile elements with internal dynamics [PDF]

open access: yes, 2002
A model of interacting motile chaotic elements is proposed. The chaotic elements are distributed in space and interact with each other through interactions depending on their positions and their internal states.
Cole   +16 more
core   +1 more source

Security against individual attacks for realistic quantum key distribution [PDF]

open access: yes, 2000
I prove the security of quantum key distribution against individual attacks for realistic signals sources, including weak coherent pulses and downconversion sources.
A. K. Ekert   +32 more
core   +2 more sources

Reducing critical effects of torsional vibrations induced by PDC bits during rock destruction

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2022
Introduction. Torsional vibrations caused by drilling using a polycrystalline diamond compact (PDC) bit are analysed using wellbore data obtained under various drilling modes. The drilling caused by torsional vibrations are analysed.
B. A. Ovezov   +4 more
doaj   +1 more source

Practical long-distance quantum key distribution through concatenated entanglement swapping with parametric down-conversion sources

open access: yes, 2015
We develop a theory for long-distance quantum key distribution based on concatenated entanglement swapping using parametric down-conversion sources and show numerical results of our model.
Khalique, Aeysha, Sanders, Barry C.
core   +1 more source

Home - About - Disclaimer - Privacy