D-Lab: Energy - Project Presentations 4: Final Design Review
D-Lab: Energy - Project Presentations 4: Final Design Review
Four student teams (juice bag sealer, charcoal barrel improvement, solar charger for cell phones, rice dehusking) give final presentations and demonstrations of their projects, at the D-Lab Spring Showcase event. Speaker: MIT Students
Nano-to-Macro Transport Processes - Lecture 11: Energy ...
Nano-to-Macro Transport Processes - Lecture 11: Energy Transfer by Waves: ...
Description: The main focus is the microscopic picture of waves. This lecture discusses the energy transport by waves, by using the Maxwell's equations in different electric/magnetic fields and between different interfaces. Instructor: Prof. Gang Chen
Nano-to-Macro Transport Processes - Lecture 17: Solutions ...
Nano-to-Macro Transport Processes - Lecture 17: Solutions to Boltzmann ...
Description: Students learn to solve the Boltzmann equation in the classical limit under relaxation time approximation in this lecture. Students also learn to derive the Fourier law, Newton shear law, and the electron transport process with the Ohm's Law. Instructor: ...
Nano-to-Macro Transport Processes - Lecture 20: Classical ...
Nano-to-Macro Transport Processes - Lecture 20: Classical Size Effects, ...
Description: This lecture continues discussion on energy transport when it travels perpendicularly to a film. It also provides solving Boltzmann equation with consideration of classical size effects under circumstances of heat carriers colliding with boundaries. ...
Signals and Systems - Lecture 25: Audio CD
Signals and Systems - Lecture 25: Audio CD
Instructor: Dennis Freeman Description: The final Signals and Systems lecture explains how audio playback evolved from the fragile Edison cylinder phonograph to durable modern optical disks, through the application of digital signal processing concepts.
D-Lab: Energy - Lab 2: Solar Power Measurement, Part II: ...
D-Lab: Energy - Lab 2: Solar Power Measurement, Part II: Activities
This lab consists of three modules: - Characterize the peak power output of the solar cell - Measure how power output of a solar panel changes with the angle of light - Measure how solar panel efficiency drops when the panel is shaded Students also get more instruction ...
D-Lab: Energy - Lab 4: Wiring Solar Panels, Part I: Lecture
D-Lab: Energy - Lab 4: Wiring Solar Panels, Part I: Lecture
In this pre-lab lecture, students learn the basics about how photovoltaic solar panels work. They also learn about various solar thermal technologies, and the advantages to using SODIS bags for solar water disinfection. Speaker: Amit Gandhi
D-Lab: Energy - Lab 5: Savonius Wind Turbine Construction ...
D-Lab: Energy - Lab 5: Savonius Wind Turbine Construction and Testing
In this lab, students use soda bottles, wire, and magnets to construct small wind turbines on wooden bases. They use the Savonius wind turbine design and troubleshoot various problems that come up, finally calculating voltage and current when finished. Speaker: Amit ...
Signals and Systems - Lecture 12: Continuous-Time (CT) ...
Signals and Systems - Lecture 12: Continuous-Time (CT) Feedback and ...
Instructor: Dennis Freeman Description: Today's lecture continues the discussion of control systems by demonstrating how feedback loops can add speed and bandwidth to the LM741 op-amp, and allow better control of a robot arm's angular position.
The Challenge of World Poverty - Lecture 6: Nutrition: The ...
The Challenge of World Poverty - Lecture 6: Nutrition: The Hidden Traps
Description: In this lecture, Esther Duflo discusses nutrition as a hidden trap. Instructor: Esther Duflo
D-Lab: Energy - Lab 2: Solar Power Measurement, Part I: ...
D-Lab: Energy - Lab 2: Solar Power Measurement, Part I: Lecture
In this pre-lab lecture, students learn about the sun and its pluses and minuses as a source of energy, and the various inefficiencies throughout the process of harvesting, storing, then using solar power. Speaker: Amit Gandhi
Nano-to-Macro Transport Processes - Lecture 23: Liquids: ...
Nano-to-Macro Transport Processes - Lecture 23: Liquids: Brownian Motion ...
Description: The lecture first continues discussion on liquids. It investigates transport properties of bulk liquids, and different forces and potentials between particles and surfaces in liquids. It also explores current research in solar-cells. Instructor: Prof. Gang ...
Nano-to-Macro Transport Processes - Lecture 10: Fundamental ...
Nano-to-Macro Transport Processes - Lecture 10: Fundamental of Statistical ...
Description: The discussion on statistical physics continues in this lecture. The instructor gives several examples in different ensemble cases, and also an application example in gas molecule. Instructor: Prof. Gang Chen
Nano-to-Macro Transport Processes - Lecture 14: Wave ...
Nano-to-Macro Transport Processes - Lecture 14: Wave Phenomena and ...
Description: This lecture continues previous discussion of wave propagation in thin films, and determines the energy exchange between two points. It also explores various examples in application of tunneling. Instructor: Prof. Gang Chen
Introduction to Algorithms - Lecture 11: Integer ...
Introduction to Algorithms - Lecture 11: Integer Arithmetic, Karatsuba ...
Description: This is the first of two lectures on numerics, covering irrational numbers, high-precision computation, and Karatsuba multiplication. Instructor: Srini Devadas
Nano-to-Macro Transport Processes - Lecture 2: ...
Nano-to-Macro Transport Processes - Lecture 2: Characteristic Time and ...
Description: This lecture elaborates on the microscopic pictures of energy carriers. It explains more details on energy transfer, and compares between micro and nanoscale phenomena, including classical size effects and quantum size effects. Instructor: Prof. Gang Chen
Nano-to-Macro Transport Processes - Lecture 4: Solutions to ...
Nano-to-Macro Transport Processes - Lecture 4: Solutions to Schrödinger ...
Description: This lecture provides the example solutions to Schrodinger equation. It also investigates the quantized energy in material waves with different quantum numbers and quantum states, including 1-D quantum well and 2-D quantum wire. Instructor: Prof. Gang Chen
Nano-to-Macro Transport Processes - Lecture 8: Density of ...
Nano-to-Macro Transport Processes - Lecture 8: Density of States and ...
Description: This lecture emphasizes on density of (quantum mechanical) states in electrons, phonons, and photons, elaborating the topic with examples in the 2-D and 3-D structure. It also talks about quantum statistics. Instructor: Prof. Gang Chen
Introduction to Algorithms - Lecture 4: Heaps and Heap Sort
Introduction to Algorithms - Lecture 4: Heaps and Heap Sort
Description: Priority queues are introduced as a motivation for heaps. The lecture then covers heap operations and concludes with a discussion of heapsort. Instructor: Srini Devadas
Introduction to Algorithms - Lecture 7: Counting Sort, ...
Introduction to Algorithms - Lecture 7: Counting Sort, Radix Sort, Lower ...
Description: This lecture starts by using the comparison model to prove lower bounds for searching and sorting, and then discusses counting sort and radix sort, which run in linear time. Instructor: Erik Demaine