Results 51 to 60 of about 538,014 (315)

2D cross-hole MMR - survey design and sensitivity analysis for cross-hole applications of the magnetometric resistivity method [PDF]

open access: yes, 2009
The magnetometric resistivity (MMR) method measures low-level (typically < 1nT) magnetic fields associated with a low-frequency (1 - 20 Hz) electric current impressed into the ground to determine the subsurface resistivity structure.
Fielitz, Daniel
core  

Chaplygin's method is Newton's method

open access: yesJournal of Mathematical Analysis and Applications, 1978
This method has been extended to ordinary differential equations in [w” by Lusin [6], to ordinary differential equations in Banach spaces by Mlak [8] and to parabolic equations by Mlak [7] and Szarki [15, Sect. 661. In each case a different type of hypotheses is assumed. A formal generalization considered by Wazewski [18] has been found by Schelkunoff [
openaire   +3 more sources

Nichtlineare Staubungsneigung binärer Schüttgutmischungen: Herausforderungen bei der Prognose Non‐linear dusting tendency of binary bulk material mixtures: Challenges in prognosis

open access: yesChemie Ingenieur Technik, EarlyView.
Aufgrund überlagerter oder konkurrierender Mechanismen sind relevante Wechselwirkungen bei der Staubung von Schüttgutmischungen komplex und nur unzureichend verstanden. Selbst für Mischungen aus umfassend charakterisierten Einzelkomponenten existieren keine belastbaren Modelle. In dieser Arbeit werden die Hürden bei der Prognose thematisiert.
David Horst   +2 more
wiley   +1 more source

Vergleichende Untersuchung der Eigenschaften recycelter Kohlenstofffasern Comparative investigation of the properties of recycled carbon fibers

open access: yesChemie Ingenieur Technik, EarlyView.
Die Akzeptanz recycelter Kohlenstofffasern in der Industrie erfordert eine hohe und standardisierte Faserqualität. In diesem Artikel werden mechanische Eigenschaften sowie die Oberflächenqualität neuer und recycelter Kohlenstofffasern ermittelt und verglichen, um Optimierungspotentiale für das CFK‐Recycling abzuleiten.
Philipp Karsten Niebel   +7 more
wiley   +1 more source

A comparison of HK-CONWIP and BK-CONWIP control strategies in a multi-product manufacturing system

open access: yesOperations Research Perspectives, 2015
This paper evaluates the performance of the Hybrid Kanban Constant Work-In-Process control strategy and Basestock Kanban Constant Work-In-Process control strategy operating Shared Kanban Allocation Policy (S-KAP) and Dedicated Kanban Allocation Policy (D-
Chukwunonyelum Emmanuel Onyeocha   +3 more
doaj   +1 more source

Jules Vuillemin : de la méthode cartésienne à la méthode structurale

open access: yesPhilosophia Scientiæ, 2020
I studied the structural method defined by Vuillemin in La Philosophie de l’algèbre and the origins of this method by considering the fourth rule of the Discours de la méthode and its interpretation given by Vuillemin in Mathématiques et métaphysique ...
Sébastien Maronne
doaj   +1 more source

Idealistische wiskundedocenten ontwikkelen een eigen methode [PDF]

open access: yes, 2011
Voor docenten die op zoek zijn naar wiskundeonderwijs waarin geen genoegen wordt genomen met het aanleren van manieren, is de Wageningse Methode een uitkomst.
Smaalen, Daan van
core   +2 more sources

Restricted Tweedie stochastic block models

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract The stochastic block model (SBM) is a widely used framework for community detection in networks, where the network structure is typically represented by an adjacency matrix. However, conventional SBMs are not directly applicable to an adjacency matrix that consists of nonnegative zero‐inflated continuous edge weights.
Jie Jian, Mu Zhu, Peijun Sang
wiley   +1 more source

Rank‐based estimation of propensity score weights via subclassification

open access: yesCanadian Journal of Statistics, EarlyView.
Abstract Propensity score (PS) weighting estimators are widely used for causal effect estimation and enjoy desirable theoretical properties, such as consistency and potential efficiency under correct model specification. However, their performance can degrade in practice due to sensitivity to PS model misspecification.
Linbo Wang   +3 more
wiley   +1 more source

Improving Arabic language speaking skill of non-Arabic students in Karabuk University

open access: yesJournal of Community Service and Empowerment
The lack of understanding of Arabic among non-Arabic students at the Faculty of Divinity at Karabuk University is one of the factors that hinder them from understanding lessons, especially in courses such as qira'ah, tafsir, hadith, and others.
Riza Ashari   +3 more
doaj   +1 more source

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