Journal of Northwest University(Natural Science Edition) 2008 Issue 4 Design of 45 ～ 870 MHz all-channel receiver with TV sound

Design of 45 ～ 870 MHz all-channel receiver with TV sound
YANG Yan-ning;LIU Gen-ju;LIU Li-jun;ZHANG Zhi-yong

..............page:541-543

A new self-adaptive projection method for variational inequalities
BAI Hong-fang;GAO Xing-bao

..............page:537-540

Compact high efficiency continues-wave intra-cavity SHG 473nm blue laser
LI Feng;LIU Rong;GUO Xiao-fang;BAI Yang;BAI Jin-tao

..............page:544-546

The proportion of Sr/Pb affects material performance for (Sr, Pb)TiO3
HE Chong-bin;SHI Yun-bin;ZHAO Li-li;ZHANG Zhi-yong

..............page:547-550

A study on the algorithm to detect fires in early stage based on MV
GUO Jie;LIU Jun;WANG Bao-lin

..............page:551-554

A study on the wide-band sandwich transducer with single hole
HU Jing;HE Xi-ping

..............page:555-559

Design of high-speed quantizer for two-step ADC
ZHOU Hua;DENG Zhou-hu;ZHANG Zhi-yong;WANG Xiao-yan

..............page:560-564

Eyes location based on improved symmetry transform
ZHAGN Zhi-gang;ZHOU Ming-quan;GENG Guo-hua

..............page:565-568

Research on implementation of SOA based on GT4
YUE Kun;WU Jiang;ZHANG De-tong;QIN Bao-sheng

..............page:569-573

SAR image classification based on improved fcm algorithm
WANG Rui-hua;SONG Jian-she

..............page:574-578

Absorption property and thermodynamics of Dioscorea zingiberensis yellow pigment on macroporous resins
TANG Xuan;LI Wen-hong;LI Xin-sheng;CHEN De-jing;GAO Rong;ZHAO Peng;BAN Feng;DAI Bai-xia

..............page:579-583

A study on preparation of plla microspheres
LAN Ting;HAO Hong;BI Man;LI Tao;ZHAO Ya-ling

..............page:584-586

Preparation of ovalbumin using Q-Sepharose FF chromatograph
WANG Bi-ni;XU Ming-sheng;DU Hua-ying

..............page:587-592

A study on porcine hemoglobin and glutaraldehyde-polymerized porcine hemoglobin as hemoglobin-based oxygen carriers
WU Bao-ping;WANG Fan;LUO Chao;CHEN Chao;DAN Ning

..............page:613-616

Features of sediment and reservoir in middle base-level cycles of Chang 6 reservoir set in Panguliang Oilfield
SUN Wei;SUN Wei;MAO Zhi-guo;JI Peng-cheng;YANG Jun-xia

..............page:617-621

Prediction of remaining oil distribution and adjustment and tap production potential with reservoir engineering
ZHAO Xiao-yan;DU Chun-long;REN Zhan-li;SUN Dong

..............page:622-626

Analysis on factors affecting quality of logging constraint inversion
ZHANG Jiang-hua;LIN Cheng-yan;HUI Jun-gang;WANG Xiu-chen

..............page:627-630

Relations between geothermal history and hydrocarbon generation in Kongquehe Area
XIAO Hui;REN Zhan-li;CUI Jun-ping;QING Ying;HAN Wei

..............page:631-636

A study on enrichment regularity and distributed feature of Chang 6 reservoir system, middle east of north Shaanxi, Ordos Basin
DANG Yong-chao;ZHANG Long;CAO Li

..............page:637-641

The "Liberation Daily" in the historic background of Yanan region and its significance in the development of Communication of Natural Science
YANG Lin-lin;YAO Yuan

..............page:685-688

Galton and the invention of correlation
ZHAO Chen-yang;ZHAI Shao-dan

..............page:680-684

The research on harmonious developing between urbanization and residential environment in Xi'an
SHI Qian-you;FAN Hua-dong;ZHANG Min-na;WANG Min

..............page:673-679

Research on classification Techniques of remote sensing image by SAM
WANG Xu-hong;JIA Bai-jun;GUO Jian-ming;LIU Wan-qing;LI Hong-mei

..............page:668-672

The research on application of GIS technology in flood disaster evaluation: Taking the middle and lower reaches of Wei River for example
CHEN Jing;LI Tian-wen;FENG Li-li;LONG Yong-qing;LI Chao

..............page:663-667

Research on the evolutive mechanism of eco-spatial structure in the urban agglomeration region
GUO Rong-chao;MIAO Chang-hong;GU Chao-lin;ZHANG Yong-min

..............page:657-662

Analysis on water eco-security responding to regional land use change: A case study in west Shanxi and north Shaanxi in the Loess Plateau Region.
LIANG Xiao-ying;CHEN Zheng-jiang;CHEN Hai

..............page:653-656

Empirical research on interaction between ecology construction and the economy development of the loess plateau
YAN Jun-ping;TIAN Xiang-li;SONG Bao-ping

..............page:649-652

Zircon dating on mylonite from the southern margin of Junggar Basin and its geological implication
YAO Zhi-gang;ZHOU Li-fa;GAO Pu

..............page:642-648,652

An equation involving the pseudo Smarandache function and its positive integer solutions
ZHANG Ai-ding

..............page:535-536,540

More notes on a functional equation
ZHANG Shi-qin

..............page:533-534

On the mean value of smarandache function df (n)
ZHANG Fu-ling;LI Jiang-hua

..............page:531-532

Gauge fixed parametrization of Polyakov model
WANG Zhan-yun;CAI Xiao-lin

..............page:527-530

The empirical Bayes test for one exponential family using NA samples
WANG Liang;SHI Yi-min

..............page:523-526

The enumeration of symmetric balanced boolean functions with odd variables
WANG Jian-ping

..............page:520-522

Comparison and maximum principles for convex functions on Grushin-type planes
NIU Peng-cheng;LI Wen-bai

..............page:517-519

Synthesis and crystal structure of nitryl compound of formononetin
ZHANG Xiao-qing;QIN Bei;MIAO Yan-qing

..............page:593-596

Thermokinetic studies on formation reactions in the liquid-phase of energetic complexes M(ATZ)(phen) 2·nH2 O
ZHOU Chun-sheng;JIAO Bao-juan;FAN Guang;CHEN San-ping;GAO Sheng-li

..............page:597-601

The comparison of the content of loganin in cornus officinalis in different growing periods from different collecting areas
XU Dan;FAN Bao-juan;SUN Wen-ji

..............page:602-604

The expression and purification of HBsAg in secreted Pichia pastoris
WANG Ya-ni;HUANG Zong-yan;ZHU Juan-li;DONG Zhao-Lin;CUI Ya-li;CHEN Chao

..............page:605-608

Selection of breeding dens by Giant Pandas (Ailuropoda melanoleuca) in Qinling Mountains
LI Yu;YONG Yan-ge;SONG Cheng-jun;GAO Jie;XIONG Yue-ping;YANG Xing-zhong

..............page:609-612