Results 41 to 50 of about 7,880,129 (337)

Variation Analysis Considering the Partial Parallel Connection in Aero-Engine Rotor Assembly

open access: yesEnergies, 2022
The rotation precision of rotors determines the efficiency and quality of the overall aero-engine, as well as its long-term and reliable operation ability. As the terminal link of aero-engine manufacturing, the assembly is the last guarantee of precision
Siyi Ding, Xiaohu Zheng
doaj   +1 more source

Coupling control variates for Markov chain Monte Carlo [PDF]

open access: yesJournal of Computational Physics, 2009
We show that Markov couplings can be used to improve the accuracy of Markov chain Monte Carlo calculations in some situations where the steady-state probability distribution is not explicitly known. The technique generalizes the notion of control variates from classical Monte Carlo integration.
Goodman, Jonathan B., Lin, Kevin K.
openaire   +3 more sources

Emergency Quantity Discount Contract with Suppliers Risk Aversion under Stochastic Price

open access: yesMathematics, 2021
This paper constructs an emergency quantity discount contract to explore the inherent law of the contract coordinating the supply chain with stochastic market demand and price and the risk-averse supplier.
Shuangsheng Wu, Qi Li
doaj   +1 more source

On uniform closeness of local times of Markov chains and i.i.d. sequences

open access: yes, 2018
In this paper we consider the field of local times of a discrete-time Markov chain on a general state space, and obtain uniform (in time) upper bounds on the total variation distance between this field and the one of a sequence of $n$ i.i.d.
de Bernardini, Diego F.   +2 more
core   +1 more source

Optimization Design of Silent Chain Plate Inner Tooth Profile based on the Secondary Variation

open access: yesJixie chuandong, 2020
The conception of the equivalent silent chain plate is proposed,the meshing relations between the inner-outer compound meshing silent chain and involute sprocket are analyzed.
An Lichi   +4 more
doaj  

Vendor managed forecasting: A case study of small enterprise

open access: yesJournal of Industrial Engineering and Management, 2009
Enterprises use supply chain management practices for improving business or supply chain performance. It is observed that supply chain technologies like VMI are now becoming an integral part of enterprise’s strategy. Even small and medium enterprises can
Atul B. Borade, Satish Bansod
doaj   +1 more source

Oxygenated Analogues of Santacruzamate A

open access: yesMolbank, 2021
A new approach for the synthesis of Santacruzamate A analogues is demonstrated. The method allows functionalization at position 3 of the gamma-aminobutyric fragment and carbon chain variation.
Plamen Angelov   +3 more
doaj   +1 more source

Spectral weight contributions of many-particle bound states and continuum

open access: yes, 2002
Cluster expansion methods are developed for calculating the spectral weight contributions of multiparticle excitations - continuum and bound states - to high orders.
A. Fledderjohann   +7 more
core   +1 more source

Eliminating unpredictable variation through iterated learning [PDF]

open access: yes, 2010
Human languages may be shaped not only by the (individual psychological) processes of language acquisition, but also by population-level processes arising from repeated language learning and use.
Smith, Kenny, Wonnacott, Elizabeth
core   +1 more source

Unfolding and unzipping of single-stranded DNA by stretching

open access: yes, 2004
We present a theoretical study of single-stranded DNA under stretching. Within the proposed framework, the effects of basepairing on the mechanical response of the molecule can be studied in combination with an arbitrary underlying model of chain ...
Alexei V. Tkachenko   +4 more
core   +1 more source

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