Results 21 to 30 of about 48,940 (255)

A comparison of a new multinomial stopping rule with stopping rules of fleming and gehan in single arm phase II cancer clinical trials

BMC Medical Research Methodology, 2011
Background Response rate (RR) alone may be insensitive to drug activity in phase II trials. Early progressive disease (EPD) could improve sensitivity as well as increase stage I stopping rates.
Tu Dongsheng, Pond Greg R, Goffin John R
doaj   +1 more source

Early Stopping without a Validation Set

CoRR, 2017
16 pages, 10 ...
Maren Mahsereci, Lukas Balles, Christoph Lassner, Philipp Hennig   +3 more
openaire   +3 more sources

Theoretical and practical perspectives of diesel locomotive with DC traction motors wheel-sets’ slipping and sliding control

Transport, 2012
The causes of slipping and sliding of the locomotive's driving wheel-sets are analysed from theoretical and practical perspectives. The main factors influencing wheel-sets’ slipping are described, and their correlation is determined. The specific methods
Lionginas Liudvinavičius, Gintautas Bureika   +1 more
doaj   +1 more source

Optimizing quasi-cyclic spatially coupled LDPC codes by eliminating harmful objects

EURASIP Journal on Wireless Communications and Networking, 2023
It is well known that some harmful objects in the Tanner graph of low-density parity-check (LDPC) codes have a negative impact on their error correction performance under iterative message-passing decoding.
Massimo Battaglioni, Franco Chiaraluce, Marco Baldi, Michele Pacenti, David G. M. Mitchell   +4 more
doaj   +1 more source

Reference and Limit Governors for Limit Protection of Turbofan Engines

Energies, 2019
This paper proposes a novel architecture of limit protection including the references governors and limit governors and applies this architecture to limit protection in turbofan engines.
Wenhao Xu, Muxuan Pan, Jiakun Qin, Jinquan Huang   +3 more
doaj   +1 more source

A Hybrid 3D Colon Segmentation Method Using Modified Geometric Deformable Models [PDF]

Iranian Journal of Medical Physics, 2007
Introduction: Nowadays virtual colonoscopy has become a reliable and efficient method of detecting primary stages of colon cancer such as polyp detection.
S. Falahieh Hamidpour, A. Ahmadian, R. Aghaeezadeh-zoroofi, M. A. Shabani-samghabadi   +3 more
doaj   +1 more source

Three-dimensional discrete element simulation of the runaway vehicle deceleration process on the arrester bed of truck escape ramps

Science Progress, 2020
Due to imperfect design norms and guidelines for China’s truck escape ramp, previous studies have not been able to reflect the effect of wheel subsidence process on the deceleration of runaway vehicles.
Pinpin Qin, Fengmin Wu, Da Wu, Shunfeng Zhang, Daming Huang   +4 more
doaj   +1 more source

Experimental Bayesian Calibration of Trapped-Ion Entangling Operations

PRX Quantum, 2022
The performance of quantum gate operations is experimentally determined by how correctly operational parameters can be determined and set, and how stable these parameters can be maintained.
Lukas Gerster, Fernando Martínez-García, Pavel Hrmo, Martin W. van Mourik, Benjamin Wilhelm, Davide Vodola, Markus Müller, Rainer Blatt, Philipp Schindler, Thomas Monz   +9 more
doaj   +1 more source

Degradation mechanism of the von Willebrand factor A2 domain by nattokinase

FEBS Letters, EarlyView.
Nattokinase, a natto‐derived protease, exhibits potent antithrombotic effects. This study demonstrates that nattokinase directly cleaves the von Willebrand factor (vWF) A2 domain in vitro. Unlike the native regulator ADAMTS13, nattokinase degrades folded vWF independently of shear stress.
Ryuichi Hyakumoto, Masatomo So, Ayako Furukawa, Kenji Sugase   +3 more
wiley   +1 more source

Accelerator techniques and nuclear data needs for ion beam analysis of wall materials in controlled fusion devices

EPJ Techniques and Instrumentation, 2023
A brief overview of ion beam analysis methods and procedures in studies of materials exposed to fusion plasmas in controlled fusion devices with magnetic confinement is presented.
Marek Rubel, Daniel Primetzhofer, Per Petersson, Sotirios Charisopoulos, Anna Widdowson   +4 more
doaj   +1 more source