Defects in the lattice are of primal importance to tune graphene chemical, thermal and electronic properties. Electron-beam irradiation is an easy method induce defects following pre-designed patterns, but no systematic study time evolution resulting available. In this paper, change over defected sites created with low-energy ($\leq 20$ keV) electron studied both experimentally via micro-Raman ...

Underwater Remotely Operated Vehicles (ROVs) have a significant support role to play in offshore petroleum production facilities. The extent to which ROVs can replace diver-based operations depends significantly on ROV capacity and the relative costs of mobilising and implementing the two modes of underwater operation. This paper presents work directed at two aspects of ROV operability: the qua...

Abstract The unique climate, topography and soil conditions of Anhui Province in China are the main causes drought, which is one limiting factors economic social development. Characterized by low data requirement, strong operability flexibility, conventional ‘assessment based on comprehensive index’ (ACI) used to assess drought risk, index obtained can only represent relative risk level among o...

Current methods for Multi-AUV cooperation suffer in low communication environments. State of the art methods employ auctioneering or planning to determine a single AUV’s task. These systems require communication for efficient task selection. Most strategies assume a teammate is inoperable if a communication timeout is reached which reduces overall team efficiency. Including teammate prediction ...

Lung resection remains the treatment of choice in the curative approach to nonsmall cell lung cancer. Because most lung cancer patients are current or former smokers, they are at increased risk of chronic obstructive pulmonary disease and coronary artery disease, conditions associated with increased surgical morbidity and mortality. Careful preoperative assessment of the cardiopulmonary reserve...

Abstract Based on corrosion big data and user demand, this paper provides a passenger car resistance evaluation model with strong practicability, operability, good discrimination. Considering the three dimensions of time, number problems, severity, whole vehicle is comprehensively evaluated through appearance, function (primary index), coating scratch (bonus item), to reflect advantages disadva...

A reactive distillation column in general can exhibit multiple steady states which reduce column operability and controllability during perturbations of manipulated variables and particularly during start-up and shut down. The objective of this paper was to compare the equilibrium (EQ) and nonequilibrium (NEQ) models of a reactive distillation column, focusing on the phenomenon of multiple stea...