Hi,
I have a isolation valve - 8" ball in 80 bar pressure. Is the valve seat or seal will get damaged while opening this valve due to high differtial pressure, in upstream 80 bar & downstram 0 bar. Or pressure equalisation line is required across the main valve.
Kindly advice m
Can anyone assist me in the selection of the correct air exhaust/cleaning system for a spray painting area? Please note that an economical solution is favourable utilising special filters (if available) and exhaust fans suitable for use with VOCs instead of a complex and expensive solution with rege
I am calculating about cooling sysrerm internal combustion engineer, but i haven't found documents for caculate fan and pump? you can indicate me documents to caculate or choice fan and pump in cooling sysrerm internal combustion engineer? Thank you very much.
One of our production line runs on an old RSLogix 5/20 PLC, the interface coms cable is a 25 pin male to 9 pin female. The laptop I'm using (Lenovo T61 ThinkPad) dose not have a 9 pin male com port. I'm looking at the option of connecting a USB to Serial Port Adaptor (9 pin) to the exsisting femal
sir,
please send me the internal circuit diagram of charger and explain its working
why there r three terminals in nokia battery and four terminals in motorola battery
It’s been a rather eventful week here at Science-Based Medicine. I apologize that I don’t have one of my usual 4,000 word epics ready for this week. I was occupied all day Saturday at a conference at which I had to give a talk, and Dr. Tuteur’s departure produced another issue that I had to deal with. Fortunately, because Dr. Lipson is scheduled to do an extra post today, I feel less guilty about not producing my usual logorrhea. Who knows? Maybe it will be a relief to our readers too.
This confluence of events makes this a good time to take a break to take care of some blog business and make formal what I alluded to on Thursday in the comments after I announced Dr. Tuteur’s departure, namely that it’s time for us at SBM to start recruiting. Our purpose in recruiting will be to make this blog even better than it is already. We have an absolutely fantastic group of bloggers here, and it is due to their hard work and talent that SBM has become a force to be reckoned with in the medical blogosphere. Our traffic continues to grow, and reporters and even on occasion governmental officials have taken notice. That’s why Dr. Tuteur’s departure makes this a perfect opportunity to build on that record and make SBM even better and a more essential as a source of medical commentary than it is already. To accomplish this goal, it’s clear that any recruitment cannot be simply to fill in a gap in our posting schedule. I would much rather have a weekday go without a post every now and then than to recruit the wrong person to take over Dr. Tuteur’s spot. As a result, I hope to make this recruitment more strategic and to do it in a more formal manner than we have perhaps done in the past. We also plan on taking our time and therefore ask your patience.
To this end, I’m going to ask for nominations, either self-nominations or nominations of others, as suggested bloggers for SBM. Please also include a link to the nominee’s blog or, if the nominee is not a blogger or otherwise known for skeptical writings regarding medicine elsewhere (such as R. Barker Bausell), samples of his or her writing about topics relevant to SBM. I will compile the list over the next couple of weeks; our bloggers will discuss and vet the candidates; and we will decide whom we want to try to persuade to join us, either as a regular weekly blogger (currently Harriet Hall, Steve Novella, and me), an every-other-week blogger (currently Peter Lipson, Mark Crislip, Val Jones, and Joe Albietz), a monthly blogger (currently Kim Atwood), or an occasional contributor (currently Wally Sampson, David Ramey, John Snyder, Tim Kreider, and David Kroll). Finally, if you’re nominating yourself, please specify how often you are interested in contributing and tell us a bit about yourself and your background. Also realize that we do require our bloggers to write under their own names. No pseudonyms will be permitted, at least not on this blog.
So where do we need the most help? A number of you, as well as a number of SBM bloggers, came up with excellent suggestions for priority areas where our readers what to see more material or where we are weak here at SBM. These areas include, in no particular order:
If you, dear readers, have any other suggestions, please let us have them. Either leave them in the comments or e-mail me directly at gorskon@gmail.com. Please do not e-mail me at work. I keep my work and blog business as separate as possible, which is why in general I do not respond to blog-related e-mails sent to me at work.
Finally, be aware that SBM is about more than this blog. As you may recall, we’ve arranged one symposium at TAM7, and we plan on doing two workshops at TAM8. We frequently consult with each other on issues of SBM. Sometimes we argue, and this is good. We aren’t looking for clones of one or more of us; we are looking for unique viewpoints who can defend and discuss science-based medicine while writing cogently and entertainingly about it. If you want to do more than that, such as giving talks, participating in workshops, and in general agitating to increase the role of science in medicine, and, as was laid out in the very first post on this blog, here’s why:
The philosophy of this blog, at its core, is simple: Safe and effective health care is critical to to everyone’s quality of life; so much so that it is generally considered a basic human right. The best method for determining which interventions and health products are safe and effective is, without question, good science. Therefore it is in everyone’s best interest for health care to be systematically evaluated by the best science available.
And:
This is why the authors of this blog strongly advocate for science based medicine – the use of the best scientific evidence available, in the light of our cumulative scientific knowledge from all relevant disciplines, in evaluating health claims, practices, and products. The authors are all medically trained and have spent years writing for the public about science and medicine, tirelessly advocating for high scientific standards in health care. Together, and with contributions from other medical science writers, they will turn a critical eye toward all issues relating to science and medicine. They hope to make the Science Based Medicine blog a vital resource for consumers, providers, regulators, the media, and anyone interested in quality health care.
Although our visibility and number of SBM bloggers have increased greatly in the two years since those words were written, our vision and purpose have not. We’re just looking for new people who share that vision and purpose to help us realize them. This time we are asking for your help.
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is it a must to install detectors in generator rooms according to NFPA?
Hi everyone,
we are considering the purchase a large BOGE air compressor type SO181A, variable speed type. The price is rather lower than that from other competitors, so we suspect this might be related to lower quality. Does anyone have any experience, good or bad, with BOGE air compressors?
Hey folks. Hope life's good.
I needed some suggestions with regards to material suitable for pumps that circulate MOL (milk of lime). My industry currently uses a grade of CI for the purpose but the casing fails after about two months or so. So there is a constant hassle of changing these p
The snubber slows the actuator near the end of travel to prevent overshoot and bottoming of the actuator piston. The implementation is relatively simple: position commands from the flight control computer are rate limited in the ARTs, with the rate limits reducing to zero near the end of travel. Thi
Can anyone recomend me an acceptace criterion for partial discharge for a 6kV motor?
A three phase 400v, 50 Hz induction motor is to have it's speed controlled by a variable frequency drive unit to 1100rpm. The frequency required is found to be 37Hz, and the motor terminal voltage is reduced at the same ratio. For the conditions above, calculate the number of poles in the motor and
When stared direct on line a three phase squirrel cage induction motor develops a startring torque of 120Nm, When started by an auto-transformer starter, the starter draws 48 amps from the supply and the motor draws 8- amps from the starter. Calculate the value of the starting torque developed by th
A three phase, six pole induction motor when connected to a 400v, 50 Hz supply runs at full load with a speed of 960rpm and draws 22a from the supply at a power factor if 0.88. If the motor has a efficiency of 90%, determine the input/output power
I am looking for help to better understand
Calculate the line current drawn by a three-phase synchronous motor operating with a 0.84 leading power factor, if when operating at unit power factor the motor draws a supply current of 1200amperes.
tell me about power factor correction of domestic load.methods,equipments and systems for above.
What a pleasure watching the Vancouver 2010 Winter Olympics over the last couple weeks. It's easy to be cynical these days about many things - even about the commercialism and politics surrounding the Olympics - but to see young men and women and spectators from all over the world coming together to participate in sport with such unadorned pleasure and fellowship.... well, it gives one hope for a better world.
Well hello again Colombo airport welcomed me with an ocean of fibs. My hotel had apparently sent several taxi drivers to meet me which was strange as I hadn't booked a hotel.I consulted my lonely planet to check prices for a three wheeler to Negombo the nearest resort and somehow read a much lower figuremeaning I stood bargaining with a driver over 50 pence for half an hour. When i got to my h
CWB UgandaCrew Arrive SafelyFriday 26 FebruaryIt was an early start for us all meeting at Heathrow Terminal 5 by 8 am. Having everyone assembled on time was a good start and we worked on checkingin luggage which included excess that BA were good enough not to charge for with kit bags and tshirts being taken out to leave for the children in Uganda. We were all very pleased with the number o
CWB UgandaCrew begin work in KampalaSaturday 27 FebruaryAfter breakfast and a quick stop into a nearby shopping centre for bottled water and the opportunity to change money into local currency we all headed to the national sports centre in Kampala. Here we met national cricketer Fred who showed us around the cricket ground which included a wonderful traditional scoreboard. It may not have the
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