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Video
Using of Z table
- Subjects:
- Statistics and Research Methods
- Keywords:
- Mathematical statistics Statistics
- Resource Type:
- Video
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Video
The vast majority of our grid-scale storage of electricity uses this clever method. Electricity faces a fundamental problem that comes with pretty much any product that’s provided on-demand: our ability to generate large amounts of it doesn’t match up that closely with when we need it. The storage of electricity for later use, especially on a large scale, is quite challenging. That’s not to say that we don’t store energy at grid scale though, and there’s one type of storage that makes up the vast majority of our current capacity.
- Subjects:
- Environmental Engineering, Hydraulic Engineering, and Mechanical Engineering
- Keywords:
- Energy storage Water-power Pumped storage power plants
- Resource Type:
- Video
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Video
Wind can be one of the most critical and complicated loads on civil structures. The case of the Tacoma Narrows bridge is a well-known cautionary tale that’s discussed in engineering and physics classrooms across the world. Both resonance from vortex shedding and aeroelastic flutter contributed to the failure. When you push the envelope, you have to be vigilant because things that didn’t matter before start to become important (e.g. wind loads on lighter structures). Unanticipated challenges are a cost of innovation and that’s something that we can all keep in mind.
- Subjects:
- Structural Engineering
- Keywords:
- Washington (State) -- Tacoma -- Tacoma Narrows Bridge (1940) Suspension bridges Wind-pressure
- Resource Type:
- Video
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Video
Being diagnosed with autism is often seen as a tragedy. But for Jac den Houting, it was the best thing that's ever happened to them. As an autistic person, concepts like the Neurodiversity paradigm, the Social Model of Disability, and the Double Empathy Problem were life-changing for Jac. In this talk, Jac combines these ideas with their own personal story to explain why we need to rethink the way that we understand autism. Jac den Houting is a research psychologist and Autistic activist in pursuit of social justice. Jac currently holds the role of Postdoctoral Research Associate at Macquarie University in Sydney, working alongside Professor Liz Pellicano. In 2015, Jac was awarded an Autism CRC scholarship to complete their PhD through the Autism Centre of Excellence at Griffith University in Brisbane. Prior to this, they gained almost 10 years’ experience as a psychologist in the criminal justice system, with the Queensland Police Service and Queensland Corrective Services. Jac was identified as Autistic at the age of 25, and is proudly neurodivergent and queer. After participating in the inaugural Future Leaders Program at the 2013 Asia Pacific Autism Conference, Jac quickly became established as a strong advocate for the Autistic community. Jac is a current member of the Autistic Self Advocacy Network of Australia and New Zealand (ASAN-AuNZ)’s Executive Committee, the Autism CRC’s Data Access Committee, Aspect’s LGBTQIA+ Autism Advisory Committee, and the Aspect Advisory Council. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx
- Course related:
- RS3320 Clinical Sciences in Developmental Dysfunction
- Subjects:
- Health Sciences
- Keywords:
- Autistic people Autism Autistic people -- Services for
- Resource Type:
- Video
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Video
Earthquakes have always been a terrifying phenomenon, and they’ve become more deadly as our cities have grown — with collapsing buildings posing one of the largest risks. But why do buildings collapse in an earthquake? And how can it be prevented? Vicki V. May explains the physics of why it is not the sturdiest buildings, but the smartest, that will remain standing.
- Subjects:
- Building and Real Estate and Disaster Control and Management
- Keywords:
- Building failures -- Prevention Earthquake resistant design Earthquake engineering Buildings -- Earthquake effects
- Resource Type:
- Video
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Video
This video shows how simple reinforcement is used to prevent collapse of rock tunnels. Tunnels play an important role in our constructed environment as passageways for mines, conveyance for utilities, and routes for transportation. Rock bolts are a type of reinforcement for stabilizing rock excavations, usually made from steel bars or bolts. This simple construction method dramatically reduces the cost of making tunnels through rock safe from collapse.
- Subjects:
- Structural Engineering
- Keywords:
- Underground construction Rock bolts Tunneling Tunnels
- Resource Type:
- Video
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Video
This video explains how GPS works, security issues of GPS, and why US military GPS can be made free for use.
- Subjects:
- Land Surveying and Geo-Informatics
- Keywords:
- Global Positioning System Artificial satellites in navigation
- Resource Type:
- Video
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Video
This video shows more destructive testing to answer your questions about concrete. Concrete's greatest weakness is its tensile strength, which can be less than 10% of its compressive strength. So, we often reinforce it to create a composite material strong against all types of stress. This video briefly touches on conventional rebar and prestressed/post-tensioned reinforcement.
- Subjects:
- Building and Real Estate
- Keywords:
- Reinforced concrete Concrete
- Resource Type:
- Video
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Video
This video discusses the topic of urban sprawl and the environmental and social impact if a city is expanding too fast
- Subjects:
- Building and Real Estate
- Keywords:
- Cities towns -- Growth Housing policy Buildings -- Height restrictions City planning
- Resource Type:
- Video
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Video
This video explains why ridges move, and other musings on thermal movement of large civil works. Most people have a certain intuition about thermal expansion, but you may not have considered how engineers design to accommodate it on large civil structures. The video gives a quick overview on this important consideration that engineers must account for when designing infrastructure like pipelines, bridges, and even sidewalks.
- Subjects:
- Structural Engineering
- Keywords:
- Structural analysis (Engineering) Expansion (Heat)
- Resource Type:
- Video
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Video
Architects, engineers and developers are creating increasingly greener structures - and doing it in a more literal way than ever before. This is what happens when trees meet buildings.
- Subjects:
- Environmental Engineering, Building Services Engineering, and Building and Real Estate
- Keywords:
- Buildings -- Energy conservation Roof gardening Sustainable buildings Sustainable construction Trees in cities
- Resource Type:
- Video
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Video
In this video, Mr Peter Sidorko, the University Librarian of the University of Hong Kong explain the importance of academic integrity. Students are expected to conduct themselves honesty and with integrity. One of the key responsibilities is to assure to credit the materials used to develop the ideas and academic work properly and avoid plagiarism.
- Keywords:
- Intellectual property Plagiarism Information literacy Academic writing
- Resource Type:
- Video
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Video
Chances are you'll need to find a scholarly journal article for a research paper or project in the near future. But, wait, what is a "scholarly journal article?" How is it different from a popular source like a newspaper or magazine article? Let's reduce the confusion on scholarly journal articles. Scholarly journals enable scholars -- experts in a particular academic field -- to communicate their research with other experts in that field through publishing articles and to stay current by reading about other scholars' work. Consequently, scholarly journals create a community of scholars who are all participating in a kind of "conversation" in that academic field. Rather than a face-to-face conversation, this is a formal conversation, which takes place over months and years through written documents. The most important part of this long term written conversation - what makes it a “scholarly” conversation, as opposed to popular - is what's called the “peer review process.” The peer review process works like this: in order for a scholar to get published in a scholarly journal, his or her expert peers must read their work and critique it. These “peer reviewers” make sure that the scholar has cited the appropriate experts in the discipline, made valid and well-supported arguments, and has written the article on a topic that is appropriate for that particular journal. This rigorous evaluation process ensures that scholarly work meets a higher standard than popular publications. So, why is this important for you? First, the information in a scholarly text has been rigorously evaluated, so it is more reliable and credible than information in popular sources. Second, reading scholarly journal articles for your papers or projects can give you insight into the ways of thinking of experts in that field. Finally, every scholarly text has extensive bibliographies that introduce you to important texts in the field, which can help you extend your research in that area. When you read the articles and books the scholar cited in her article, you are taking part in the scholarly conversation.
- Keywords:
- Scholarly periodicals Scholarly publishing
- Resource Type:
- Video
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Video
A weir is a small dam built across a river to control the upstream water level. Weirs have been used for ages to control the flow of water in streams, rivers, and other water bodies. Unlike large dams which create reservoirs, the goal of building a weir across a river isn’t to create storage, but only to gain some control over the water level. Over time, the term weir has taken on a more general definition in engineering to apply to any hydraulic control structure that allows water to flow over its top, often called its crest. In fact, the spillways of many large dams use weirs as control structures. So how do they work?
- Subjects:
- Hydraulic Engineering
- Keywords:
- Dams Hydraulics Weirs
- Resource Type:
- Video
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Video
In many of the world’s tallest skyscrapers, there’s a secret device protecting the building and the people inside from strong motion due to wind and earthquakes. Did you know you can tune a skyscraper just like a guitar? In this video, we’re comparing theory to the real world for tuned mass dampers. Luckily this tech is simple enough that we can model it right in the garage. As silly as this little experiment looks, it’s actually not that far off from what engineers do in the real world (maybe without the googly eyes). The design phase for just about every major building includes some physical scale model tests. This video shows that the tuned mass damper is a great example of elegance in engineering.
- Subjects:
- Structural Engineering
- Keywords:
- Tuned mass dampers Buildings -- Earthquake effects Buildings -- Vibration
- Resource Type:
- Video
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Video
Engineers need to be able to predict how water will behave in order to design structures that manage or control it. And fluids don’t always behave the way you’d expect. On this episode, we’re talking about one of the most interesting phenomena in open-channel flow: the hydraulic jump.
- Subjects:
- Hydraulic Engineering
- Keywords:
- Hydraulics Hydraulic jump
- Resource Type:
- Video
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Video
Hydraulic transients (also known as water hammer) can seem innocuous in a residential setting, but these spikes in pressure can cause major damage to large pipelines and industrial pipe networks. In this video, we briefly discuss how water hammer occurs and how engineers mitigate the effect.
- Subjects:
- Building Services Engineering
- Keywords:
- Water hammer Hydraulic transients Fluid mechanics
- Resource Type:
- Video
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Video
A few things that can go very wrong when you put steam in a pipe. We talked about the damaging effects of water hammer, but there’s another state of H2O equally if not more dangerous when put in pipes. In this episode, we’re talking about steam hammer and differential shock.
- Subjects:
- Building Services Engineering
- Keywords:
- Piping Fluid dynamics Pipelines
- Resource Type:
- Video
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Video
What are solar cells, and how do they work? Find out more about solar power - and learn how this renewable resource harnesses the power of the sun into usable energy.
- Subjects:
- Environmental Engineering and Building Services Engineering
- Keywords:
- Solar energy Renewable energy sources Photovoltaic power generation
- Resource Type:
- Video
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Video
Sometimes conventional reinforcement isn't enough. The basics of prestressed concrete. Prestressing reinforcement doesn't necessarily make concrete stronger. But, it does increase the serviceability of concrete members by reducing the amount of deflection under load. This video explains the two most common types of prestressed concrete: pre-tensioned and post-tensioned. Prestressed concrete is used in all kinds of structures from bridges to buildings to silos and tanks. It’s a great way to minimize cracking and take fuller advantage of the incredible strength of reinforced concrete.
- Subjects:
- Building and Real Estate
- Keywords:
- Prestressed concrete Reinforced concrete
- Resource Type:
- Video