Real life sunken cities - Peter Campbell

source: TED-Ed    2016年8月4日
View full lesson: http://ed.ted.com/lessons/real-life-s...
Though people are most familiar with Plato’s fictional Atlantis, many real underwater cities actually exist. Peter Campbell explains how sunken cities are studied by scientists to help us understand the lives of our ancestors, the dynamic nature of our planet, and the impact of each on the other.
Lesson by Peter Campbell, animation by TED-Ed.

訊號與系統--陳永平 / 交大

播放清單 (請按影片右上角選取影片)

source: nctuocw    2014年3月6日
本課程是由交通大學電機工程學系提供。
介紹訊號與系統的基本概念、原理與應用。
課程資訊：http://ocw.nctu.edu.tw/course_detail....
更多課程歡迎瀏覽交大開放式課程網站：http://ocw.nctu.edu.tw/ 本課程同時收錄至國立交通大學機構典藏，詳情請見：http://ir.nctu.edu.tw/handle/11536/10...

Lec01 單元零 Introduction 22:48
Lec02 單元一 Running Integral 24:24
Lec03 單元二 Natural Exponential Function 14:25
Lec04 單元三 Step and Impulse Functions 55:16
Lec05 單元四 Fourier Series 1:05:45
Lec06 單元五 Frequency Spectra of Fourier Series 1:06:38
Lec07 單元六 Fourier Transform 1:37:12
Lec08 單元七 Linear Time Invariant Systems 1:11:54
Lec09 單元八 Laplace Transform 1:09:56
Lec10 單元九 System in Differential Equation 1:24:52
Lec11 單元十 Signal Filtering (1/2) 1:45:58
Lec12 單元十 Signal Filtering (2/2) 1:31:30
Lec13 單元十一 System Realization (1/2) 47:56
Lec14 單元十一 System Realization (2/2) 1:14:07
Lec15 單元十二 System in State-Space Description (1/2) 1:07:18
Lec16 單元十二 System in State-Space Description (2/2) 1:07:39
Lec17 單元十三 Sampling and Modulation 1:08:12
Lec18 單元十四 Discretized Systems and z-Transform (1/2) 1:42:13
Lec19 單元十四 Discretized Systems and z-Transform (2/2) 47:41
Lec20 單元十五 LTI System in Difference Equation (1/2) 1:30:58
Lec21 單元十五 LTI System in Difference Equation (2/2) 48:22
Lec22 單元十六 Discrete-Time Fourier Transform 1:33:39
Lec23 單元十七 Discrete Fourier Transform 1:15:27
Lec24 單元十八 Transformations for Signals and Systems 40:28
Lec25 單元十九 Unit Output Feedback Control 1:09:17
Lec26 單元二十 Phasor Method for AC Circuits 1:00:47
Lec27 單元二十一 Applications of Fourier Transform to Communication Systems 56:35
Lec28 單元二十二 Phase-Locked Loop 14:38
Lec29 單元二十三 IIR Digital Filter Design 1:09:03

Adnan Akay: Acoustics (2010 at Bilkent University)

# playlist of the 29 videos (click the up-left corner of the video)

source: Bilkent Online Courses    2014年8月16日
ME 566 Acoustics
2009-2010- Spring
Introduction to oscillations, waves, and sound generation and propagation. General concepts such as quantitative measures of sound, plane waves, and acoustic energy density and intensity. Perception of sound. Derivation of wave equation. Reflection, transmission and refraction of sound. Normal modes: vibrating membranes, and sound in a rectangular enclosure; room and duct acoustics. Acoustic horns. Absorption and attenuation of sound waves. Acoustic waves in spherical co-ordinate systems.

Lecture 01 Harmonic Oscillations 47:10
Lecture 02 Linear Simple Harmonic Motion 48:00
Lecture 03 Forced Vibrations Impedence Power Input 42:18
Lecture 04 Wave Equation 56:52
Lecture 05 Plane Waves: Normal Incidence 55:30
Lecture 06 Plane Waves: Oblique Incidence 46:41
Lecture 07 Plane Waves: Oblique Incidence 57:30
Lecture 08 Sound Transmission Between Two Media, Snell 56:22
Lecture 09 Reflection, Transmission of Sound 39:20
Lecture 10 Sound Waves in Wave Guides 51:03
Lecture 11 Sound Waves in Ducts, Complex Expressions 52:15
Lecture 12 Sound Waves in Ducts with Flexible Walls 45:07
Lecture 13 Pipes with Varying Cross Sections 1:01:02
Lecture 14 Tubes with Non-Plane Terminations 50:32
Lecture 15 Silencers, Helmholtz Resonator 36:31
Lecture 16 Transmission Matrices 1:05:04
Lecture 17 Transmission Matrix 31:10
Lecture 18 Fourier Transforms 45:13
Lecture 19 Plate Vibrations 52:25
Lecture 20 Radiation from an Infinite Plate 1:12:22
Lecture 21 Radiation from Infinite Plate, Acoustic Loading 56:37
Lecture 22 Transmission and Reflection from Plates 58:16
Lecture 23 Radiation in Spherical Coordinates 42:46
Lecture 24 Sound Radiation in Spherical Coordinate 56:46
Lecture 25 Sound Radiation in Spherical Coordinate (cont'd) 1:01:09
Lecture 26 Sound Radiation in Spherical Coordinate (cont'd) 19:50
Lecture 27 Radiation from Spherical Sources 58:55
Lecture 28 Radiation from Spherical Sources (cont'd) 41:14
Lecture 29 Radiation from Cylindrical Sources 1:00:31

Consciousness in Business with Gino Yu

source: New Thinking Allowed     2016年6月20日
Gino Yu is currently an Associate Professor and Director of Digital Entertainment and Game Development in the School of Design at Hong Kong Polytech University where he oversees the Multimedia Innovation Centre, a leading-edge think tank and research center on digital entertainment. He previously taught at the Hong Kong University of Science and Technology where he helped to establish the Center for Enhanced Learning Technologies. His main area research interests involve the application of media technologies to cultivate creativity and promote enlightened consciousness.

Here he discusses several approaches to cultivating and applying greater self-awareness in business, with a particular emphasis on somatic awareness. He also notes the importance of physiological and psychological energy in organizations. He makes reference to pioneering psychological work by Wilhelm Reich, Abraham Maslow, Jean Piaget, and Clare Graves. He suggests that we are innately creative and that, at times, we need to “unlearn” forms of social conditioning that block our native abilities.

New Thinking Allowed host, Jeffrey Mishlove, PhD, is author of The Roots of Consciousness, Psi Development Systems, and The PK Man. Between 1986 and 2002 he hosted and co-produced the original Thinking Allowed public television series. He is the recipient of the only doctoral diploma in "parapsychology" ever awarded by an accredited university (University of California, Berkeley, 1980). His master's degree is in criminology. He has served as vice-president of the Association for Humanistic Psychology, and is the recipient of its Pathfinder Award for outstanding contributions to the field of human consciousness. He is also past-president of the non-profit Intuition Network, an organization dedicated to creating a world in which all people are encouraged to cultivate and apply their inner, intuitive abilities.
(Recorded on May 2, 2016)

Britain and the EU: a view from the European Parliament

source: London School of Economics and Political Science (LSE) 2016年2月9日
Date: Friday 5 February 2016
Time: 11am-12noon
Venue: Hong Kong Theatre, Clement House
Speaker: Martin Schulz
Chair: Professor Craig Calhoun

Turbulent times, multiple challenges, permanent crisis mode. Can Europe cope? Are nation states better off alone? Is the EU just a scapegoat?
Join us at this lecture to find out why Martin Schulz thinks that the EU, despite its present bad shape, remains the answer to global problems and needs fixing not ditching.
Martin Schulz (@EP_President) is President of the European Parliament. He was born in 1955 and grew up in Hehlrath Germany. Aged 31, he was elected as the youngest mayor of North Rhine-Westphalia. Since 1994, Martin Schulz has been a Member of the European Parliament. In 2004 he was elected group leader of the Socialists and Democrats. He has been President of the European Parliament since 2012. On 1 July 2014 he was re-elected President, becoming the first President in the history of the European Parliament to be re-elected for a second term.
Craig Calhoun (@craigjcalhoun) is Director and President of LSE.
The LSE European Institute (@LSEEI) was established in 1991 as a dedicated centre for the interdisciplinary study of processes of integration and fragmentation within Europe. In the most recent national Research Excellence Framework (REF 2014) the Institute was ranked first for research in its sector.

Al Gore on Confronting the Climate Crisis | Harvard Global Institute and Harvard China Project

source: Harvard University    2016年6月10日
Sponsored by the Harvard Global Institute and the Harvard China Project, former VP Al Gore delivered a public lecture to a capacity crowd in Harvard University’s Sanders Theater on April 7, 2016. He expressed optimism about progress in low-carbon energy developments and the roles played by the U.S. and China. This lecture is the first in a multidisciplinary lecture series focused on the “China 2030/2050” theme featuring high-profile speakers.
The Harvard China Project is a research program focused on China’s atmospheric environment, energy system, and economy, collaborating with researchers at Chinese universities and across the schools of Harvard. It conducts interdisciplinary, peer-reviewed studies related to air pollution and greenhouse gases in China, from root causes in the demand for and supply of energy to power its economy, to the chemistry and transport of pollutants in the atmosphere, to their impacts on human health and agriculture. To learn more about the Project, visit chinaproject.harvard.edu.

Kevin Ahern' Bite-Sized Biochemistry at Oregon State University

# click the upper-left icon to select videos from the playlist

source: Kevin Ahern    2011年6月9日
Kevin Ahern' Bite-Sized Biochemistry - The Complete Series
An organized collection of lectures spanning biochemistry. Lectures are numbered according to the order in which the lectures were given in my BB 450 and BB 451 (General Biochemistry) courses.
1. Contact me at kgahern@davincipress.com / Friend me on Facebook (kevin.g.ahern)
2. Download my free biochemistry book at http://biochem.science.oregonstate.ed...
3. Take my free iTunes U course at https://itunes.apple.com/us/course/bi...
4. Check out my free book for pre-meds at http://biochem.science.oregonstate.ed...
5. Course video channel at http://www.youtube.com/user/oharow/vi...
6. Check out all of my free workshops at http://www.youtube.com/playlist?list=...
7. Check out my Metabolic Melodies at http://www.davincipress.com/metabmelo...
8. Take my courses for credit (wherever you live) via OSU's ecampus. For details, see http://ecampus.oregonstate.edu/soc/ec...

#1: Basics 49:47
#2: Buffers (Henderson-Hasselbalch Equation) 50:17
#3: Protein Structure I 52:57
#4: Protein Structure II 51:24
#5: Protein Structure III 52:52
#6: Protein Structure & Characterization 51:58
#7: Protein Purification & Characterization 51:32
#8: Protein Structure and Hemoglobin 47:16
#9: Hemoglobin II and Respiration/Metabolism 52:45
#10: Enzymes 51:24
Biochemistry #11: Enzymes II 51:46
#12: Catalytic Mechanisms 50:21
#13: Catalytic Strategies II 51:03
#14: Enzyme Mechanism and Regulation 48:10
#15: Allostery and Regulation of Metabolism 49:05
#16: Carbohydrates I (Structure and Function) 50:42
#17: Carbohydrates II (Structure and Function) 50:10
#18: Signaling 51:38
#19: Cellular Signaling II 49:18
#20 - Control of Metabolism 47:52
#21 - Control of Metabolism / Glycolysis I 50:47
#22 - Glycolysis II / Carbohydrate Metabolism 50:44
#23 - Glycolysis III/Gluconeogenesis (Carbohydrate Metabolism) 44:24
#24 - Gluconeogenesis II (Carbohydrate Metabolism) 52:29
#25 - Glycogen Metabolism 51:01
#26 - Glycogen Metabolism II and Grand Finale 42:06
#27 - Citric Acid Cycle I (Oxidative Metabolism) 48:41
#28 - Citric Acid Cycle II (Oxidative Metabolism) 49:22
#29 - Glyoxylate Cycle/Membrane structure 48:17
#30 - Membrane Transport I 49:34
#31 - Membrane Transport II 49:05
#32 - Neurotransmission/Electron Transport 49:38
#33 - Electron Transport II / Oxidative Phosphorylation 51:33
#34 - Metabolic Control / Lipid Metabolism 50:45
#35 - Fat, Lipid & Cholesterol Movement in the Body 51:22
#36 - Fatty Acid Metabolism I 48:26
#37 - Fatty Acid Metabolism II 45:50
#38 - Fatty Acid Metabolism III 50:41
#39 - Nucleotide Metabolism I 47:37
#40 - Nucleotide Metabolism II 48:21
41 - DNA Replication, Repair, Recombination I 48:56
#42 - DNA Replication, Repair, Recombination II 44:46
#43 - DNA Replication, Repair, Recombination III 48:24
#44 - DNA Replication, Repair, Recombination IV 44:13
#45 - Transcription I (RNA Synthesis) 50:23
#46 - Transcription II (RNA Synthesis) 50:06
#47 - Transcription III / Translation I 47:53
#48 - Translation II (Protein Synthesis) 46:57
#49 - Translation III / Gene Expression I 47:17
#50 - Gene Expression II 48:14
#51 - Gene Expression III / Sensory Systems I 52:53
#52 - Sensory Systems II 43:03
#53 - Immune System & Grand Finale 50:52