Results 71 to 80 of about 673,896 (289)

Authentic Aroma and Compound-Specific Isotope Ratios (δ13C, δ2H) Profiles of Vanilla Pods (V. planifolia and V. tahitensis)

open access: yesMolecules
Stable isotope ratio analysis of carbon (δ13C) and hydrogen (δ2H) in vanillin has become a valuable tool for differentiating natural vanilla from synthetic or biosynthetic alternatives and for tracing its geographical origins.
Long Chen   +7 more
doaj   +1 more source

Small Radial Compressors: Aerodynamic Design and Analysis

open access: yesInternational Journal of Rotating Machinery, 1998
This paper presents a computational procedure for the analysis of steady one-dimensional centrifugal compressor. The numerical model is based on the conservation principles of mass, momentum and energy, and has been utilized to predict the operational ...
K. A. R. Ismail   +3 more
doaj   +1 more source

STRENGTHENING THE ROLE OF ISLAMIC PAWNSHOP IN ISLAMIC FINANCING FOR MSMES: ANP APPROACH

open access: yesTazkia Islamic Finance and Business Review, 2017
Objectives: aims to strengthen the role of Islamic pawnshop in financing for Micro Small & Medium EnterprisesMethods: analytic network process (ANP) approachResults: the main problem of Islamic pawnshop in expansion was its internal.
Lydia Edgina   +2 more
doaj   +1 more source

Development of Test-Analysis Models (TAM) for correlation of dynamic test and analysis results [PDF]

open access: yes
The primary objective of structural analysis of aerospace applications is to obtain a verified finite element model (FEM). The verified FEM can be used for loads analysis, evaluate structural modifications, or design control systems.
Angelucci, Filippo   +2 more
core   +1 more source

A hybrid approach for predicting the distribution of vibro-acoustic energy in complex built-up structures

open access: yes, 2011
Finding the distribution of vibro-acoustic energy in complex built-up structures in the mid-to-high frequency regime is a difficult task. In particular, structures with large variation of local wavelengths and/or characteristic scales pose a challenge ...
Maksimov, Dmitrii N, Tanner, Gregor
core   +1 more source

High‐Performance Transparent, Deformable, and Recoverable Biomimetic Stevia–PVA Hydrogel Triboelectric Nanogenerator with Machine Learning‐Assisted Motion Recognition

open access: yesAdvanced Materials, EarlyView.
A transparent, deformable stevia–PVA hydrogel triboelectric nanogenerator delivers significantly enhanced mechanical strength and electrical output through biomimetic hydrogen‐bonded networks. Coupled with machine learning–assisted signal recognition, the self‐powered hydrogel enables accurate human‐motion sensing for intelligent wearable and IoT ...
Thien Trung Luu   +5 more
wiley   +1 more source

Building Spectral Element Dynamic Matrices Using Finite Element Models of Waveguide Slices and Elastodynamic Equations

open access: yesShock and Vibration, 2013
Structural spectral elements are formulated using the analytical solution of the applicable elastodynamic equations and, therefore, mesh refinement is not needed to analyze high frequency behavior provided the elastodynamic equations used remain valid ...
P.B. Silva   +2 more
doaj   +1 more source

DISPARITAS REGIONAL PROVINSI SUMATERA BARAT DI ERA OTONOMI DAERAH

open access: yesTataloka, 2015
Regional autonomy policy has been implemented since 2001, but in 2013 as many as 66.67 percent of districts in West Sumatra still categorized as a relatively underdeveloped region by the Ministry of Development Underdeveloped regions.
S Syahrial   +2 more
doaj   +1 more source

Rational Tuning of Hygroscopic Oscillation of Stacked Nanoflake Assemblies for Continuous Ambient Energy Harvesting

open access: yesAdvanced Materials, EarlyView.
Stacked nanoflake assembly (SNA) membranes can oscillate autonomously, offering opportunities for soft actuation and energy harvesting. This work uncovers the physical mechanism behind the sustained oscillation of SNA membranes in gradient humidity and identifies three governing dimensionless parameters, enabling rational design for optimizing SNA ...
Zijing Zhang   +5 more
wiley   +1 more source

Rubber-tracked crawler undercarriage multibody dynamic simulation for agriculture operation

open access: yesScientific Reports
This paper presents a novel multibody dynamic model for agricultural vehicles and applies it to study the effects of dynamic loading on a tracked wheel crawler vehicle used for agricultural purposes.
Ramiro Jose Chamorro Coneo   +4 more
doaj   +1 more source

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