A Handbook for the Mechanical Designer Second Edition pptx

... critical to evaluate fan performance curves in the fan selection process as the margin for error is very slim when selecting a fan near the limits of tabular data . The perfor- mance curve also ... of the fan in contact with the air or gas being han- dled shall be made of nonferrous material. Steps must also be taken to assure that the impeller, bearings, and shaft are a...

Ngày tải lên: 27/06/2014, 17:20

... Motor and Drive Basics 42 Ventilation Rates for Acceptable Indoor Air Quality† †Adapted from ASHRAE Standard 62-1989 “Ventilation for Acceptable Indoor Air Qual- ity”. Space Outdoor Air ... from any airstream material that may be present in a system.” Standard Applications • Centrifugal Fans • Axial and Propeller Fans • Power Roof Ventilators This standard applies to ferr...

Ngày tải lên: 27/06/2014, 17:20

... draw. A code letter at the beginning of the alphabet indicates a low starting current and a letter at the end of the alphabet indicates a high starting current. Starting current can be calculated ... motor nameplates. The rating is shown as a code letter on the nameplate which represents various kva/hp ratings. The nameplate code rating is a good indication of the...

Ngày tải lên: 01/04/2014, 00:20

... (congenital malformation, asphyxia, ) Definition 3.3. A qualitative variable has values that are intrinsically nonnumerical (cate- gorical). As suggested earlier, the values of a qualitative variable ... data that are not quantitative but categorical (e.g., the amount of impairment of an animal, whether an animal is losing its hair, whether a patient has improved morale). There is a...

Ngày tải lên: 15/03/2014, 04:20

... xxvii E-Mail Today, many therapists offer e-mail counseling either as a primary form of therapy or as an adjunct to regular therapy sessions. E-mail therapy began as a matter of convenience for many ... codes for each of the national and state profes- sional organizations are also available from the issuing organization and on the Internet. If the answer to a particular ethi...

Ngày tải lên: 15/02/2014, 02:20

... chapter. This may take the form of standardized tests and/or qualitative observation and information gathered from teachers and parents. The child’s performance with regard to the National ... school age can talk to his teacher, the special educational needs coordinator (SENCO, or special education teacher/ educator in the US) or the headteacher. Parents can also make a forma...

Ngày tải lên: 22/03/2014, 15:20

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Ngày tải lên: 30/03/2014, 12:20

... contestant. • Datacasting. This new technology trans- mits data, such as the statistics of the pitcher during a baseball game, stock market quotes, software program updates, etc. Although datacasting ... samples for the 4:4:4 format. Each sample has a Y, a Cb, and a Cr value. Each sample is typi- cally 8 bits (consumer applications) or 10 bits (pro-video applications) pe...

Ngày tải lên: 18/04/2014, 12:27

... Access Act, the Fair Housing Act Amendments, and perhaps the most well known and far reaching, the Americans with Disabilities Act (ADA). How many people with disabilities are there? There are approximately ... requirements. Inclusion Handbook Page 20 obtaining passage of several federal laws that advance the civil rights of persons with disabilities. These are Section 504 of the...

Ngày tải lên: 28/06/2014, 23:20