Results 101 to 110 of about 15,062 (254)

Finite-key analysis on the 1-decoy state QKD protocol

open access: yes, 2018
It has been shown that in the asymptotic case of infinite-key length the 2-decoy state QKD protocol outperforms the 1-decoy state protocol. Here, we present a finite-key analysis of the 1-decoy method.
Boaron, Alberto   +4 more
core   +2 more sources

Dietary Bordão‐De‐Velho (Samanea tubulosa) Fruit Improves Grazing Beef Cattle Performance

open access: yesNew Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.
Integrated grass‐tree systems have been proposed to address socio‐ecological challenges in tropical cattle production. Bordão‐de‐velho (Samanea tubulosa), a legume tree native to the Amazon, is commonly found in degraded pastures and valued by farmers for its soil, forage, and livestock benefits.
Vanderson E. Meira   +4 more
wiley   +1 more source

Research and Application of Ridged Diamond Element Bit

open access: yesShiyou jixie, 2018
To address the problems of cylindrical PDC cutters like thermal wear, impact damage and balling and the required high WOB for conical cutters, the ridged diamond element drill bit technology is studied.
Feng Songlin   +3 more
doaj  

Elaboration de gradients de composition continue dans des taillants PDC

open access: yes, 2006
International audienceCemented carbides are composites which possess an excellent compromise between hardness and toughness. For years, to improve one property without decreasing the other one, the concept of graduated structure was widely studied.
Colin, Christophe   +3 more
core   +1 more source

Experimental study on rock-breaking mechanism of micro-coring PDC bit [PDF]

open access: gold, 2021
Shengsong Huang   +4 more
openalex   +1 more source

Mutant p53 Regulates Pyruvate Dehydrogenase Kinase 1 (PDK1) to Promote Proliferation and Migration in Breast Cancer

open access: yesCancer Science, Volume 117, Issue 2, Page 335-352, February 2026.
PDK1 is a direct transcriptional repression target of wtp53 and mutp53 can sustain its own stability by upregulating PDK1 in breast cancer. ABSTRACT Tumor suppressor p53 is the most frequently mutated gene in cancers. Mutations in p53 not only result in the loss of its classical tumor‐suppressive functions but also confer new oncogenic properties.
Yan Ye   +10 more
wiley   +1 more source

Analysis on Fluid-Solid-Thermal Coupling Field in Rock Breaking Under Composite Impact Loads Based on Simulation Model

open access: yesShiyou jixie
In order to reveal the rock-breaking mechanism of full-size PDC bit under composite impact loads,from the perspective of temperature,a simulation model of fluid-solid-thermal coupling in rock breaking of PDC bit under composite impact loads was built ...
Cao Jifei   +6 more
doaj  

An Experimental and Numerical Simulation Study on Rock Cutting Based on Pre-Breaking

open access: yesShiyou jixie, 2019
The design of the mixed-cutter placement can only rely on the engineering experience. The combination of experiment and numerical simulation is used to study the rock breaking force and rock breaking efficiency of the PDC cutter under different pre ...
Liu Zhong, Hou Huihui, Hu Wei
doaj  

TESS Data Release Notes: Sector 20, DR27 [PDF]

open access: yes
This release note discusses the science data products produced by the Science Processing Operations Center at Ames Research Center from Sector 20 observations made with the TESS spacecraft and cameras as a means to document instrument performance and ...
Burke, Christopher J.   +9 more
core   +1 more source

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