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Type:LTPS TFT-LCD, LCM;Pixel Number:540(RGB)*960, qHD 256PPI;Active Area(mm):53.46(W)*95.04(H) mm;Viewing Angle:80/80/80/80 (Typ.)(CR≥10);Display mode:AHVA, Normally Black, Transmissive;Brightness:/;Contrast Ratio:700 : 1 (Min.) (TM);Lamp Type:/;Interf
Product Name:3,6,9,12,15-Pentaoxanonacosan-1-ol CAS No:92669-01-7 MF:C24H50O6 MW:434.6502 CID:800863 PubChem ID:14973992 Inquiry Supply Basic Information Names and Identifiers 3,6,9,12,15-Pentaoxanonacosan-1-ol 2-[2-[2-[2-(2-tetradecoxyethoxy)ethoxy]ethoxy]ethoxy]ethanol Pentaethy...
An attractive alternative to generate tunable dual-wavelength pulses by external injection seeding of a gain-switched Fabry-Pérot laser diode (FP-LD) is demonstrated. The external-injection-seeding branch consists of only a FP-LD, a 3-dB coupler and two fiber Bragg gratings (FBGs). The two...
解答解:(1)设数列{an}的公差为d(d≠0),数列{bn}的公比为q, ∵由题意得a2332=a1a21,∴(1+2d)2=1×(1+20d),即4d2-16d=0, ∵d≠0,∴d=4,∴an=4n-3. (2)∵由(1)可得anbn=(4n-3)3n-1, ∴Sn=30+5×31+9×32+…+(4n-7)×3n-2+(4n-3)×3n-1, ...
分析(Ⅰ)根据数列的递推关系即可求a3,a4,并直接写出an;(Ⅱ)根据数列求和的关系进行求解即可求Sk,Tk关于k的表达式;(Ⅲ)求出Wk的表达式,解不等式即可.解答 解:(I)因为a1=4,a2=2,所以a3=a1+4=8,..…(1分)a4=2a2=4,..…(2分)an={2(n+1),n=2k−1(k∈N∗)2n2,n=2k(k∈N∗)an={2...
Compatible Computers: For Opti-plex 780 760 960 980 SFF (Small Form Factor) Part Numbers: R224M, PW116, FR610, RM112, WU136, 67T67 Model Numbers: L235P-01, H235P-00, L235P-00 H235E-00 F235E-00 Max Power: 235Watt Input: 100-240V~/ 4.5A Warranty & Returns Warranty, Returns...
英文名称:AN-698/40749219 CAS No.:491587-01-0 分子式:C23H15N2O5S2Br 分子量:543.41 了解化合物详情 快速询单 AN-698/40749219 数据 Mol: 491587-01-0.mol by:chem960.com ChemDraw08031019472D ……… .1263 4.4027 0.0000 O 0 0 0 0 0 0 0 0 0 0 0 0 15.7383...
AN0128 | 872044-70-7 英文名称:AN0128 CAS No.:872044-70-7 分子式:C20H16BCl2NO3 分子量:400.062943458557 了解化合物详情 快速询单国内供应商 AN0128 数据 Mol: 872044-70-7.mol by:chem960.com ChemDraw08031019472D ……… 0 0 0 0 0 0 0 6.3301...