I am shocked to see the unruly behaviour and intollerable comments by educated people on your web site - especially from US. Is it arrogance? Thier contribution is little, but keep passing dirty remarks. Is it possible to have a limited number of invited people to brain storm - instead of keeping th

Dr. Stephon Alexander has asked big questions. How did the space and time that govern our universe come into being? Intrigued at an early age by quantum theory, Einstein's theory of relativity, and string theory, he now works to unify them in his search for a theory of quantum gravity.

Dr.

hi everybody, i hope u all r well .. i have some kind of confusion about the career i should choose after my graduation. I'm a mechanical engineer in the final year - Power department .. my study qualifies me to work in ref. and AC, power plants, piping .. etc ( any thing related to mechanical p

Quick one: what is the formula for a U or C shaped beam ?

thank you

Just one question !!!

i am working in water pipe line project ( 28" O.D - 0.5 mm thickness - 60 bar working pressure - API 5L X52 pipes),

and now we facing a problem! big problem!!

The ASME code B31.4 - 1998 (para 4062.2) state that if the hoop stress is more than 20% of t

What does HPA stand for in ABB SF6 Gas CB (Ex. HPA12/1240)?

From IEEE Spectrum:

It's been clear since brain computer interfaces were developed, that customizing these devices would require learning both on the part of the machine and the human. New research in the Proceedings of the the Academy of the Sciences gives evidence that humans qui

why don't we use light for mass transfer?

What is milli Volt (mV) drop test for bus bars? how to conduct the same at site??

Regards

PG

What do you mean by pushing in pipeline?

I'm willing to know about the applications of seamless and welded pipes with regard to the range of working temperature & pressure and kind of fluid( like water/ sour water, sour or sweet hydrocarbon gas/ liquid, acid gas, ...) in which flows. where are they used? or what are the differences bet

Basically Im the employer of fabrication caomany, I wanted to know the difference between ER SS316L & SS316 L grade filler wires with its advantages/disadvantages over each other & perfomance for weld joint.

if possible please reply on my Email:-dhir.patil1@gmail.com

Can i use other materials like SS-316, Al instead of 4140 as target material for eddy current probes. What will be the effect on performance of probes by using different material?

I'm considering buying a bandsaw, some quote 100mm cutting depth and 195mm ripping depth??? I'm confused, the only way I can imagine this is acheived is by removing the upper (adjsutable) blade guide for ripping.
Is that what they mean?
Del

PLEASE CAN U SIMPLIFY FOR ME HOW BJT SMALL SIGNAL ANALYSIS...

I get how to calculate weight but conversion in meter to be carried out.

so i need to know how directly calculating weight in mm.....

65*65*5mm -------- then 65x65x5x7.85/?????

how to perform noise sensitivity test because don't know how to modulate power supply as mentioned in this test

How can we determine volume flowrate of air in a pipe?

we have simple equation

Q = Av

but how can air velocity be determined in the pipe

i got air velocity equation i.e.

v = Sqareroot(2500 DP/L)

while D = inner Dia of pipe

P= Pressure Dr

I have a need to isolate a very sensitive microscope from floor vibration created from Air Handeling Units. Does anybody have suggestions? I have tried to use rubber pads stacked together with some success but that has not totally eliminated the problem. I need something with more dampening ability

I need to rotate a small roller (ground + hardened steel dia 2.5 mm L 11 mm) around its axis for visual inspection. I am thinking of using 2 driver rollers of dia 10 mm placed such that there contact line with the driven roller is 30 degrees below horizontal. These driver rollers are to be driven by