X [dB] + Y [dB] = Z [dB]; X [dB] - Y [dB] = Z [dB]X [dBm] + Y [dB] = Z [dBm]; X [dBm] - Y [dB] = Z [ dBm]X [dBm] + Y [dBm] = Z [ ]; X [dBm] - Y [dBm] = Z [dB]dBm l decibell tnh so vi mt miliwatt, con c goi l [di-bi-em]Tuong t? v?y, dBi d?c l [di-bi-ai], l tang ch (hay d? l?i) c?a m?t ang-ten so v?i ang-ten d?ng hu?ng (isotropic).dBd, d?c l [di-bi-di], l tang ch c?a m?t ang-ten so v?i m?t ang-ten lu?ng c?c (ch? d sau dB ?y l vi?t t?t c?a t? dipole, nghia l ang-ten lu?ng c?c) n?a sng (half wave dipole).C? dBi l?n dBd d?u cng d? ch? tang ch (G) c?a ang-ten, v?n d? l so v?i ang-ten no, d?ng hu?ng hay lu?ng c?c n?a sng.G [dBi] = G [dBd] + 2.15 [dB]. http://vntelecom.org/diendan/showthread.php?t=21450975996610seri 8984044454006175176pin 1111 (0000)puk 75425802CD KEYFCKGW-RHQQ2-YXRKT-8TG6W-2B7Q8b?n ny m?nh hay xi r?t ?n ?nh ! sau khi t?i v? v?i ?nh d?ng Iso, b?n m? tr?nh ghi ?a v nh ra CD !Thn, Sharingvn.netLu ?: y l CD KEY th? 2:RXHK3-R36QB-76R72-KVPVW-XW9VWLu ?: ph?i ?i tn ui t? .asd thnh .iso ? c th? s? d?ng thng c?m v? Server khng cho ltdung872009208 67 222 222208 67 200 220Trung tm B?i d?ng ngu?n o t?o ti?n s? thu?c Khoa Sau ?i h?c, ?i h?c Qu?c gia H N?i.?a ch?: Ph?ng 402, nh G7, 144 ?ng Xun Th?y, C?u Gi?y, H N?ii?n tho?i: 04.3754 9036 - 0912 815 816To the world, you may be the one person but to one person you may be the world Anh cua Ha:http://www.mediafire.com/?0syjcc07ydwef0vhttp://www.mediafire.com/?5qz6wctiw2cd0anhttp://www.mediafire.com/?5rk4npb0xta6rxmJD3T2- QH36R-X7W2W-7R3XT-DVRPQ key win xpdonguyenhaninhminhhang91"Dear Sir,Im a student at the university ... Vietnam. Im working on the seamless mobility in heterogeneous networks. Im really interested in your paper on JCN vol.7 titled Seamless and Secure Mobility Management with Location-Aware Service (LAS) Broker for Future Mobile Interworking Networks. Could you please sending me a copy of this paper? Id like to thank you in advance.Im looking forward to hearing from you soon.Best regards,"N?i dungNh?n h? so, d?y li xe B2, b? tc tay li b?ng xe d?i m?i: 150N/gi?. Gio vin nhi?t tnh, kinh nghi?m, dn h?c vin t?i nh. Th?i gian h?c theo nhu c?u c?a t?ng h?c vin. LH A Tu?n, Tel 0908689599