The problem of concurrent thermal and vibration loading has not been thoroughly studied even though it is common in electronic packaging applications. Here we attempt to address such a problem using a damage mechanics based constitutive model. Damage mechanics constitutive model for eutectic Pb/Sn solder alloys is used to simulate the damage effects of concurrent cyclic thermal loads and vibrat...

Model-checking veriication systems can return counterexample traces when desired properties are shown to be violated. Unfortunately , it can be very diicult to determine how to repair a system design from a counterexample trace. In this paper, we describe an automatic technique for extracting repair candidates from counterexample traces, in the context of an on-they algorithm for timed automato...

In this companion article, we present within the finite element context the numerical algorithms for the integration of the thermodynamically consistent formulation of geometrically nonlinear gradient-enhanced viscoinelasticity derived in the first part of the article. The proposed unified integration algorithms are extensions of the classical rate-independent return mapping algorithms to the r...

One of the main concerns of investors is the evaluation of the return on investment, which is conducted using various models such as the CAPM (single-factor model), Fama-French three/five-factor models, and Roy and Shijin’s six-factor model and other models known as multi-factor models. Despite the widespread use of these models, their major drawbacks include sensitivity to unexpected changes, ...

Virtual network embedding (VNE) algorithm is always the key problem in virtualization (NV) technology. At present, research this field still has following problems. The traditional way to solve VNE use heuristic algorithm. However, method relies on manual rules, which does not accord with actual situation of VNE. In addition, as intelligent learning become a trend, gradually outdated. same time...

the produced electric and magnetic fields due to lightning strikes to mountainous ground are determined in this paper. for the sake of simplicity a cone-shaped ground with finite conductivity is assumed to represent a natural nonflat ground. by this assumption, we deal with an axillary symmetrical structure so we use the cylindrical 2d-fdtd to save the simulation memory and time, dramatically. ...

Accurate oil palm yield prediction is necessary to sustain production for food security and economic return. However, there are limited studies on comprehensive mapping accurate using advanced machine learning algorithms. Using multi-temporal remote sensing data, this paper proposed a new approach predict based the normalized difference vegetation index (NDVI) ensemble algorithm. ReliefF algori...

This paper describes a combined fracture–plastic model for concrete. Tension is handled by a fracture model, based on the classical orthotropic smeared crack formulation and the crack band approach. It employs the Rankine failure criterion, exponential softening, and it can be used as a rotated or a fixed crack model. The plasticity model for concrete in compression is based on the Menétrey–Wil...

This paper describes a Concurrent Mapping and Localisation (CML) algorithm suitable for localising an Autonomous Underwater Vehicle (AUV). The proposed CML algorithm uses a standard off-the-shelf sonar for sensing the environment. The returns from the sonar are used to detect targets in the vehicle’s vicinity. These targets are used in conjunction with a vehicle model by the CML algorithm to co...