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
Introduction to Algorithms - Lecture 8: Hashing with ...
Introduction to Algorithms - Lecture 8: Hashing with Chaining
Description: This lecture starts with dictionaries in Python, considers the problems with using a direct-access table, and introduces hashing. The lecture discusses hashing with chaining, which is one way of dealing with collisions. Instructor: Erik Demaine
Introduction to Algorithms - Lecture 9: Table Doubling, ...
Introduction to Algorithms - Lecture 9: Table Doubling, Karp-Rabin
Description: This lecture covers table resizing, amortized analysis, string matching with the Karp-Rabin algorithm, and rolling hashes. Instructor: Erik Demaine
The Challenge of World Poverty - Lecture 13: How Do ...
The Challenge of World Poverty - Lecture 13: How Do Families Decide?
This lecture continues the discussion from lecture 12, and also includes material on how families make decisions about family planning. Instructor: Esther Duflo
The Challenge of World Poverty - Lecture 14: Gender ...
The Challenge of World Poverty - Lecture 14: Gender Discrimination
This lecture covers gender discrimination and uneven gender ratios in various countries, including India. Instructor: Abhijit Banerjee
The Challenge of World Poverty - Lecture 21: Savings 2
The Challenge of World Poverty - Lecture 21: Savings 2
Description: This lecture covers experiments conducted to understand savings and borrowing in Kenya and the Phillippines. Instructor: Abhijit Banerjee