This PPT is very useful for the beginners interested for Metro Railway signalling system. It covers an overview of Signalling from fixed block to CBTC moving block system. It also includes the importance of CBTC over fixed block.
This PPT is very useful for the beginners interested for Metro Railway signalling system. It covers an overview of Signalling from fixed block to CBTC moving block system. It also includes the importance of CBTC over fixed block.
intersection are the space in which more than 2 roads crosses.types of road intersection,grade separated and at grade separated intersection.
intersection road
intersection tv series
the intersection grand rapids events
point of intersection calculator
intersection movie
intersection 1994
intersection season 4 on netflix
intersection grand rapids
at grade intersection, channelized intersection, diamond intersection, different types of road intersection, directional intersection, grade separated intersection, otary intersection, partial coverleaf intersection, road intersection definition, road intersection diagrams, roadway intersection types, trumpet intersection, un channelized intersection
This Presentation explains about the introduction of Frequency Response Analysis. This video clearly shows advantages and disadvantages of Frequency Response Analysis and also explains frequency domain specifications and derivations of Resonant Peak, Resonant Frequency and Bandwidth.
Hardy cross method of pipe network analysissidrarashiddar
Hardy Cross Method of pipe network analysis has revolutionized the municipal water supply design. i.e., EPANET, a public domain software of water supply, uses the Hardy cross method for pipe network analysis. It is an iterative approach to estimate the flows within the pipe network where inflows (supply) and outflows (demand) with pipe characteristics are known.
Alignment: The position or the layout of the central line of the highway on the ground is called the alignment.
Highway Alignment includes both
a) Horizontal alignment includes straight and curved paths, the deviations and horizontal curves.
b) Vertical alignment includes changes in level, gradients and vertical curves.
intersection are the space in which more than 2 roads crosses.types of road intersection,grade separated and at grade separated intersection.
intersection road
intersection tv series
the intersection grand rapids events
point of intersection calculator
intersection movie
intersection 1994
intersection season 4 on netflix
intersection grand rapids
at grade intersection, channelized intersection, diamond intersection, different types of road intersection, directional intersection, grade separated intersection, otary intersection, partial coverleaf intersection, road intersection definition, road intersection diagrams, roadway intersection types, trumpet intersection, un channelized intersection
This Presentation explains about the introduction of Frequency Response Analysis. This video clearly shows advantages and disadvantages of Frequency Response Analysis and also explains frequency domain specifications and derivations of Resonant Peak, Resonant Frequency and Bandwidth.
Hardy cross method of pipe network analysissidrarashiddar
Hardy Cross Method of pipe network analysis has revolutionized the municipal water supply design. i.e., EPANET, a public domain software of water supply, uses the Hardy cross method for pipe network analysis. It is an iterative approach to estimate the flows within the pipe network where inflows (supply) and outflows (demand) with pipe characteristics are known.
Alignment: The position or the layout of the central line of the highway on the ground is called the alignment.
Highway Alignment includes both
a) Horizontal alignment includes straight and curved paths, the deviations and horizontal curves.
b) Vertical alignment includes changes in level, gradients and vertical curves.
This is the slide of Satellite Broadcasting commonly useful for Satellite and Broadcasting describing different orbitals of satellite, frequency allocation, its use for broadcasting, Components of Broadcasting and many more. Feel free to comment but do add source if you are using it as a reference.
This is the presentation slide of Satellite Broadcasting. It contains the topic covering satellite and its broadcasting. Its beneficial for the students and lecturers for this topic. This covers the topics as:
Satellite
Broadcasting
Satellite broadcasting
Typical components of satellite broadcasting
Satellite Orbits
Different earth orbits
Frequency bands
Capacity Allocation
FDMA
TDMA
Advantages
Disadvantages
2. TheTV AntennaTower
A TV station in Houston decided to strengthen its
signal by erecting a new, taller (1,000 foot)
transmission antenna.
The design employed twenty 50-foot segments
that would have to be lifted up into place
sequentially by a jib crane that moved up with the
tower.
Each segment required a lifting lug to permit that
segment to be hoisted off the flatbed delivery
truck and then lifted into place by the crane.
3. TheTV AntennaTower
When the rigging company received the twentieth
and last tower segment, it faced a new problem.
While the lifting lug was satisfactory for lifting the
segment horizontally off the delivery truck, it
would not enable the segment to be lifted
vertically.
The jib crane cable interfered with the antennae
baskets at the top of the segment.
The riggers asked permission from the design
company to temporarily remove the baskets.
4. TheTV AntennaTower
The riggers were refused.
Officials at the design firm said the last time they
gave permission to make similar changes, they had
to pay tens of thousands of dollars to repair the
antenna baskets (which had been damaged on
removal) and to remount and realign them
correctly.
5. TheTV AntennaTower
The riggers devised a solution that was seriously
flawed.
They bolted an extension arm to the tower section
and calculated the size of the required bolts based
on the following . . .
13. Analysisof Riggers’ Solution
In other words, the stress in the new lug bolts was
twelve times what Riggers thought it would be.
14. TheTV AntennaeTower
A sophomore-level engineering student who had
taken a course in statics could have detected the
flaw, but the riggers had no engineers on their
staff.
The riggers, knowing they lacked engineering
expertise, asked the antenna company engineers to
review their proposed solution.
15. TheTV AntennaeTower
The engineers again refused, having been ordered
by company management not only not to look at
the drawings but also not to visit the construction
site during the lifting of the last segment.
Management of the design firm feared that they
would be held liable if there were an accident.
The designers also failed to suggest to the riggers
that they should hire an engineering consultant to
look over their lifting plans.
16. TheTV AntennaTower
When the riggers attempted to lift the top section
of the tower with the microwave baskets, the tower
fell, killing seven men.
The TV company was taping the lift of the last
segment for future TV promotions, and the
videotape shows the riggers falling to their death.
17. Ethical Questions
What conceptions of responsibility seemed most
prevalent in this case?
Can you suggest other conceptions that might have
helped avoid this tragedy?
