... (K)
Acetylene Air 2,400 - 2,700
Acetylene Nitrous Oxide 2,900 - 3, 100
Acetylene Oxygen 3, 300 - 3, 400
Hydrogen Air 2 ,30 0 - 2,400
Hydrogen Oxygen 2,800 - 3, 000
Cyanogen Oxygen 4,800
Furnaces
• Improved sensitivity ... measure of the number of atoms of the
metal in the solution
Metal Zn Fe Cu Ca Na
λ (nm) 214 248 32 5 4 23 589
Atomic Absorption Spectroscopy:
An Aussie Invention
• De...
... c
B
=’111101’, c
G
=’111110’, c
H
=’111111’
Entropy H
3
?
Bitrate:
R
3
= (1*p
A
+2*p
B
+3* p
C
+4*p
D
+6*(p
E
+p
F
+p
G
+p
H
)) /3=
= 0 .35 3 bits/pel
Block coding: n→ ∞
p
a
=p=0.99, p
b
=q=0.01
Entropy ... =(0.0284+0.0659+0.0659+0.00 13) /2= 0.081 bits/pel
Why H
2
=H
1
?
2) Huffman code: c
A
=’0’, c
B
=’10’, c
C
=’110’, c
D
=’111’
L
A
=1, L
B
=2, L
C
=2, L
D
=3
Bitrate R
2...
... nào đó
tcp.port==4 43
ip.addr=192.168.1.10 &&
tcp.port=4 43
Lọc khác
ip.dst==10.0.0.1 &&
frame.pkt_len.400
ip.src==205.162.0.1 or
ip.dst==205.1 53. 60.10
Theo vết luồng ... mạng
sử dụng Arpwatch để theo dõi hoạt động của
mạng
http://www.redhat.com/swr/i386/arpwatch-2.1a11-1.i386.html
MAC flooding
Làm ngập lụt switch
với rất nhiều
“requests”
Vì bộ nhớ s...
... codes
2. The messenger RNA leaves the
nucleus and attaches to a ribosome in
the cytoplasm
3. Transfer RNA brings amino acids to
the ribosome to match the sequence
codes
At the ribosome,
Amino