tooley, m (2002) newnes data communications pocket book (4th ed )
tooley, m. (2002). newnes data communications pocket book (4th ed.)
... unit MCA micro-channel architecture 7 MCVF multi-channel voice frequency MF medium frequency MF multiple frequency MHS message handling system MHz megahertz MIB management information base MIPS million ... second MIS management information system MNP Microcom network protocol MODEM modulator de-modulator MPLS multi-protocol label switching MPEG Moving Picture Experts Group MPX multiplexer MSC...
Ngày tải lên: 18/04/2014, 12:29
anderson, h. (2003). newnes pc troubleshooting pocket book (2nd ed.)
... supply (including mains cable and fuse) (b) system motherboard (includes CPU, ROM and RAM) (c) graphics adapter (includes video RAM) (d) disk adapter (includes disk controller) (e) other IjO adapter ... connectors) (h) keyboard and mouse (i) display adapter (j) monitor (k) external hardware (such as a printer sharer or external drive) (I) communications or network problems 4....
Ngày tải lên: 18/04/2014, 12:27
winder, s. (2002). newnes radio and rf engineering pocket book (3rd ed.)
... Medium frequency (MF) or medium wave (MW). Medium-wave local and regional broadcasting. Marine communications. Ground wave. 3–30 MHz High frequency (HF). ‘Short-wave’ bands. Long distance communications ... space loss (dB) Distance (km) 7000 MHz 100 MHz 200 MHz 400 MHz 1000 MHz 2000 MHz 3500 MHz Figure 1.5 Free space loss vs. distance and frequency 6 Figure 1.6 Major loss of microwave co...
Ngày tải lên: 18/04/2014, 12:29
Newnes engineering science pocket book, 3rd edition
... volume and mass Length is the distance between two points. The standard unit of length is the metre, although the centimetre, cm, millimetre, mm and kilometre, km,are often used. 1cmD 10 mm, 1mD ... pressure of a fixed mass of gas at constant volume, may be used to measure temperature. This thermometer is cumbersome and rarely used to measure temperature directly, but it is often used as a sta...
Ngày tải lên: 28/12/2013, 22:17
laughton, m. a. (2002). electrical engineer's reference book (16th ed.)
... cos m & cos 2m & cos 3m & Rectified sine (m- phase): a sin a sin �@ @ �@ & m & m m 2 � 1 4 m 2 � 1 9 m 2 � 1 & 2 sin & cos & sin 2& ... (t) @dt 0� f(t�T ) f(t) f(t), t!0+ f(t), t!1@ aF 1 (s)+bF 2 (s) sF(s)�f(0 ) n n�2 s F(s)�s n�1 f(0 ) s f ( 1) (0 ) @@�f (n� 1) (0 ) 1 F(s) s exp(�sT...
Ngày tải lên: 18/04/2014, 11:05
laughton, m. a. (2002). electrical engineer's reference book (16th ed.)
... cos m & cos 2m & cos 3m & Rectified sine (m- phase): a sin a sin �@ @ �@ & m & m m 2 � 1 4 m 2 � 1 9 m 2 � 1 & 2 sin & cos & sin 2& ... (t) @dt 0� f(t�T ) f(t) f(t), t!0+ f(t), t!1@ aF 1 (s)+bF 2 (s) sF(s)�f(0 ) n n�2 s F(s)�s n�1 f(0 ) s f ( 1) (0 ) @@�f (n� 1) (0 ) 1 F(s) s exp(�sT...
Ngày tải lên: 18/04/2014, 12:29
laughton, m. a. (2002). electrical engineer's reference book (16th ed.)
... cos m & cos 2m & cos 3m & Rectified sine (m- phase): a sin a sin �@ @ �@ & m & m m 2 � 1 4 m 2 � 1 9 m 2 � 1 & 2 sin & cos & sin 2& ... (t) @dt 0� f(t�T ) f(t) f(t), t!0+ f(t), t!1@ aF 1 (s)+bF 2 (s) sF(s)�f(0 ) n n�2 s F(s)�s n�1 f(0 ) s f ( 1) (0 ) @@�f (n� 1) (0 ) 1 F(s) s exp(�sT...
Ngày tải lên: 18/04/2014, 12:38
Newnes electrical pocket book, twenty third edition
... virtually complete another resonant cavity (catcher) is placed. If its impedance and tuning are correct it will extract from the beam much more power than was used to modulate it. The arrangement then ... encountered in service. Metal Rectifiers Three basic types of metal rectifier remain in common use: namely, selenium, germanium and silicon. The last two are generally referred to as semicondu...
Ngày tải lên: 28/12/2013, 22:16
