The purpose of this paper is to identify, quantify and delineate the areas with suitable aggregate resources in the Precambrian massif of Ifni and the limestone plateau of Lakhssas (southwest Morocco).To fulfill this objective, a study was undertaken on the geotechnical parameters of the various geological outcrops of the region based on the analys
Research on Temperature Rise Characteristics Prediction of Main Shaft Dual-Rotor Rolling Bearings in Aircraft Engines
Traditional aero-engine bearings rotate simultaneously with their inner and outer rings, which makes the temperature rise prediction model computationally large with low accuracy, and it cannot be accurately verified due to the means of testing.This paper presents a method for predicting the temperature rise characteristics of aero-engine bearings
Bees with attitude: the effects of directed gusts on flight trajectories
Flight is a complicated task at the centimetre scale particularly due to unsteady air fluctuations which are ubiquitous in outdoor flight environments.Flying organisms deal with these difficulties using active and passive control mechanisms to steer their body motion.Body attitudes of flapping organisms are linked with their resultant flight trajec
Profiling the Spectrum of Headache Disorders on 440 Breast Cancer Patients: Highlights on Clinical and Pathological Mechanisms
Although widely studied, the association between migraines (M) and breast cancer (BC) risk remains evasive.In this prospective single-center study, 440 early or locally advanced BC patients were enrolled at IRCCS Humanitas Research Hospital.Clinical and demographical data were collected.Those who suffered from headaches were evaluated with the Faci