Concept

Six Sigma

Publications associées (13)

Optimizing Manufacturing Efficiency: A Six-Sigma DMAIC Approach to Reduce Operational Gaps

Jérôme Chenal, Baraka Jean-Claude Munyaka

This study applies Six-Sigma DMAIC methodology to enhance the efficiency of a manufacturing production line, specifically targeting the "gaps" between planned and actual working time. Key findings reveal that meetings, scanning, follow-up activities, walki ...

2024

First detection of the BAO signal from early DESI data

Andrei Variu, Cheng Zhao, Anand Stéphane Raichoor, David Schlegel

We present the first detection of the baryon acoustic oscillations (BAOs) signal obtained using unblinded data collected during the initial 2 months of operations of the Stage-IV ground-based Dark Energy Spectroscopic Instrument (DESI). From a selected sam ...

Oxford2023

A Long Time Ago in a Galaxy Far, Far Away: A Candidate z similar to 12 Galaxy in Early JWST CEERS Imaging

Michaela Hirschmann

We report the discovery of a candidate galaxy with a photo -z of z similar to 12 in the first epoch of the James Webb Space Telescope (JWST) Cosmic Evolution Early Release Science Survey. Following conservative selection criteria, we identify a source with ...

IOP Publishing Ltd2022

High-yield, wafer-scale fabrication of ultralow-loss, dispersion-engineered silicon nitride photonic circuits

Tobias Kippenberg, Rui Ning Wang, Guanhao Huang, Junqiu Liu, Arslan Sajid Raja, Jijun He, Nils Johan Engelsen, Tianyi Liu

Low-loss photonic integrated circuits and microresonators have enabled a wide range of applications, such as narrow-linewidth lasers and chip-scale frequency combs. To translate these into a widespread technology, attaining ultralow optical losses with est ...

NATURE RESEARCH2021

Zero Defect Manufacturing Strategies and Platform for Smart Factories of Industry 4.0

Gökan May

Within the context of market globalisation, the quality of products has become a key factor for success in manufacturing industry. The growing unpredictability of demand necessitates continuous adjustments in production targets. Addressing customer needs a ...

SPRINGER-VERLAG BERLIN2019

Multi-Objective Optimization of Grooved Gas Journal Bearings for Robustness in Manufacturing Tolerances

Jürg Alexander Schiffmann, Eliott Philippe Guenat

A tolerancing method highlighting trade-offs against key design variables of mechanical systems is proposed and applied to herringbone-grooved gas journal bearings. Gas bearings typically suffer from a subsynchronous instability, demanding a very tight tol ...

2019

Trust, integrated information technology and new product success

Christopher Tucci

Purpose - The purpose of this paper is to investigate the combined roles via trust relationships of the two technology cores of the firm: information technology (IT) and R& D and their impact on new product success. Design/methodology/approach - A model wa ...

Emerald2017

The nongravitational interactions of dark matter in colliding galaxy clusters

David Richard Harvey, Richard Massey

Collisions between galaxy clusters provide a test of the nongravitational forces acting on dark matter. Dark matter's lack of deceleration in the "bullet cluster" collision constrained its self-interaction cross section sigma(DM)/m

American Association for the Advancement of Science2015

Wire EDM Monitoring for Zero-Defect Manufacturing based on Advanced Sensor Signal Processing

Paul Xirouchakis, Roberto Pérez

In the framework of zero-defect manufacturing, an advanced sensor monitoring procedure aimed at detecting the process conditions leading to surface defects in Wire Electrical Discharge Machining (WEDM) is proposed. WEDM experimental tests were carried out ...

Elsevier Science Bv2015

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We consider a three-stage dynamic flexible flow shop scheduling problem in which jobs of multiple types arrive dynamically over time, a quality feedback mechanism is present, and the setup timing and the process defect rate are closely related. At each mac ...

Elsevier Science Bv2013

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