Results 41 to 50 of about 1,865,833 (300)

An exponential continuous time GARCH process [PDF]

open access: yes, 2006
In this paper we introduce an exponential continuous time GARCH(p,q) process. It is defined in such a way that it is a continuous time extension of the discrete time EGARCH(p,q) process. We investigate stationarity and moment properties of the new model.
Haug, Stephan   +3 more
core   +1 more source

Laser confocal observation on the formation of martensite and test on the mechanical properties of steels treated by Q-P-T process [PDF]

open access: yesSCIENTIA SINICA Technologica, 2015
The advanced high strength steels(AHSS) for auto manufacturing have been developed to the 3rd generation. The typical one is steel treated by Q-P-T process, which consists of the prior martensite, fresh martensite and retained austenite. In this paper, the non-uniform distributive formation of martensite and untransformed austenite during the one-step ...
XiaoDong LI   +6 more
openaire   +1 more source

Improvement of tensile properties by controlling the microstructure and crystallographic data in commercial pearlitic carbon-silicon steel via quenching and partitioning (Q&P) process

open access: yesJournal of Materials Research and Technology, 2023
In the current research, a complex microstructure and crystallographic data were developed through quenching and partitioning (Q&P) process to improve tensile properties of commercial pearlitic carbon-silicon steel.
M.A. Mohtadi-Bonab   +6 more
doaj   +1 more source

Time Toxicity in Wilms Tumor: Quantifying the Burden of Healthcare Interaction in the First Year After Diagnosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Wilms tumor (WT) treatment imposes a significant time burden on patients and their families. Time toxicity is a patient‐centered metric that quantifies the burden of healthcare interaction. We sought to define time toxicity in the first year after diagnosis of WT and hypothesized that it would increase as tumor stage and treatment ...
Caleb Q. Ashbrook   +6 more
wiley   +1 more source

Efficacy and Safety Analysis of Roxarestat in Regulating Renal Anemia in Patients on Maintenance Hemodialysis

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Objective To compare the efficacy and safety of roxarestat versus recombinant human erythropoietin (rhEPO) in the management of renal anemia in patients undergoing maintenance hemodialysis. Methods This was a prospective, open‐label, randomized controlled trial.
Lingling Chen, Junjie Zhu, Qiaonan Ge
wiley   +1 more source

Process querying: Enabling business intelligence through query-based process analytics [PDF]

open access: yes, 2017
Highlights\ud \ud - A framework for designing process querying methods is proposed\ud \ud - The framework is positioned for broader Process Analytics and Business Intelligence\ud \ud - The framework is grounded in use cases from the Business Process ...
Aalst, WMP Wil van der   +19 more
core   +1 more source

In Situ Observation of Retained Austenite Transformation in Low-Carbon Micro-Alloyed Q&P Steels

open access: yesCrystals, 2023
Retained austenite (RA) transformation and its role in the mechanical properties of three low-carbon micro-alloyed quenching and partitioning (Q&P) steels was investigated utilizing in situ tensile tests and electron microscopy.
Xiaoyu Ye   +7 more
doaj   +1 more source

Therapeutic Apheresis in Nigeria: A Multi‐Center Summary of Abstracts From the Inaugural Nigerian Society for Apheresis Scientific Meeting

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Therapeutic apheresis (TA) is an established treatment modality for hematologic, neurologic, and immunologic disorders, yet access remains severely limited in sub‐Saharan Africa. Donor apheresis, including platelet apheresis collection from healthy donors, represents an important complementary modality supporting blood product ...
Nosa Bazuaye   +33 more
wiley   +1 more source

An exponential autoregressive-moving average process EARMA (p,q): Definition and correlational properties [PDF]

open access: yes, 1978
A new model for pth-order autoregressive processes with exponential marginal distributions EAR(p) is developed and an earlier model for first order moving average exponential processes is extended to qth-order, given an EMA(q) process.
Lewis, P. A. W., Lawrance, A. J.
core  

Estimation of the Six Sigma Quality Index

open access: yesMathematics, 2022
The measurement of the process capability is a key part of quantitative quality control, and process capability indices are statistical measures of the process capability.
Chun-Chieh Tseng   +2 more
doaj   +1 more source

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