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SpaceX is targeting Thursday, May 23 for the launch of 60 Starlink satellites from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. SpaceX’s Starlink is a next-generation satellite network capable of connecting the globe, especially reaching those who are not yet connected, with reliable and affordable broadband internet services. The launch window opens at 10:30 p.m. EDT on May 23, or 2:30 UTC on May 24, and closes at 12:00 a.m. on May 24, or 4:00 UTC. A backup launch window opens on Friday, May 24 at 10:30 p.m. EDT, or 2:30 UTC on May 25, and closes at 12:00 a.m. on May 25, or 4:00 UTC. Falcon 9’s first stage for this mission previously supported the Telstar 18 VANTAGE mission in September 2018 and the Iridium-8 mission in January 2019. Following stage separation, SpaceX will attempt to land Falcon 9’s first stage on the “Of Course I Still Love You” droneship, which will be stationed in the Atlantic Ocean. Approximately one hour and two minute...

Listen to A Song of Ice and Fire for Game of Thrones by Ramin Djawadi

The Dam Design Book explains in detail the types of dams and their specifications, such as concrete dams with real images, common design errors and how to choose the type of dam. You can download the book in pdf format below : Click here

SpaceX is targeting Saturday, May 4 for an instantaneous launch of its seventeenth Commercial Resupply Services mission (CRS-17) at 2:48 a.m. EDT, or 6:48 UTC, from Space Launch Complex 40 (SLC-40) at Cape Canaveral Air Force Station, Florida. Dragon will separate from Falcon 9’s second stage about 9 minutes after liftoff and attach to the space station on Monday, May 6. The Dragon spacecraft that will support the CRS-17 mission previously supported the CRS-12 mission in August 2017. Following stage separation, SpaceX will attempt to recover Falcon 9’s first stage on the Of Course I Still Love You droneship, stationed in the Atlantic Ocean.

Introduction de la problématique de la commande en Robotique (C1) Modélisation et identification des systèmes Robotiques en vue de leur commande (C2) Techniques de commande articulaire “classiques” en Robotique (C3) Techniques de commande opérationnelle (C4) Identification paramétrique du modèle dynamique d’un système Robotique (sous Matlab, à partir de données expérimentales) (TP1) Contrôle décentralisé et réglage des correcteurs PID (avec un robot à deux DdL) (TP2) Contrôle avec découplage dynamique (avec un robot à deux DdL) (TP3) Sommaire : Organisation et contenu de l’UE Fonctionnement et contrôle des connaissances Contenu de l’UE 2 Introduction Etymologie et définition Types de robots Applications de la robotique Caractéristiques d’un robot manipulateur Introduction à la problématique du contrôle Elements technologiques principaux 3 Constitution d’un système robotique Composition d’un axe de robot Les actionneurs Les transmissions Les capteurs Composition d...

Objectifs Savoir comment construire rapidement des prototypes de robots mobiles simples : choix de capteurs, actionneurs, ordinateurs embarquées adéquats, CAO, etc. Savoir préparer des ordinateurs embarqués et stations de contrôle ainsi que les périphériques réseau nécessaires Savoir utiliser des exemples de capteurs et actionneurs courants en robotique mobile Savoir programmer les robots pour qu’ils effectuent des missions intéressantes (suivi de trajectoire, d’objets, cartographie, etc.) Télécharger le fichier PDF

This course contains lecture notes related to structural analysis. Download Civil Engineer Files Reactions of Structures Frames Reactions Internal Forces of Beams Internal Forces of Beams with Link Members Internal Forces of Inclined Beams Internal Forces of Frames Internal Forces of Arched beams Internal Forces of Trusses Stability Influence Lines of Beams Influence Lines of Frames Influence Lines of Trusses Properties of Area Straining Actions Normal Stresses Shear Stresses Due to Forces Connections Direct Shear Shear Flow Shear Center Shear Stresses Due to Torsion Connections Subjected to Torsion Combined Stresses Determinacy and Indeterminacy Deflection Double Integration Method Deflection Conjugate Beam Deflection Virtual Work Consistent Deformations Method Slope Deflection Method Moment Distribution Method Three Moments Equation Method

This course contains lecture notes related to design reinforced concrete (RC) structures. Download Civil Engineers Files   Short Cantilever (Prestressed Concrete) Determinate prestressed structures (Prestressed Concrete) indeterminate prestressed structures   Statics of Tanks (Tanks) Cracks control (Tanks) Elevated Tank (Tanks) Rested & Underground tanks (Tanks) Circular tanks (Tanks) Yield line analysis Slab type & Girder type Bridges (R.C. Bridges) Box girder bridges (R.C. Bridges) Lateral Loads Effects (Seismic & Wind) (Eng. A. Farghal)