Journal of Southwest University for Nationalities(Natrual Science Edition) 2019 Vol.45 Issue 4

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西南民族大学学报（自然科学版）
Journal of Southwest University for Nationalities(Natrual Science Edition)

Year 2019 Volume 45

Issue 4

ren wu jie shao (人物介绍)

.................. page:封2

Changes in ecosystem service values in the non-agricultural process of farmland (农地“非农化”生态功能价值评估研究)

BAI Song, ZHAO Bing, WU Ding-yong

.................. page:331-337

Effects of psychrophilic bacteria on the fermentation and decomposition characteristics of rice straw in winter (低温菌对冬季水稻秸秆发酵腐解特性的影响)

GUAN Fa-chun, LIU Liang, MIAO Yan-jun, LIU Hui-fang, ZHANG Yong-feng, WU Yu-de, HE Yan-guo

.................. page:338-342

Analysis of influencing factors on phenotypic variation of Prunus mira seeds in Nyingchi Prefecture (林芝地区光核桃种子表型性状变异的影响因素分析)

LIU Hui-fang, LU Xin, GUAN Fa-chun, WU Yu-de, ZONG Xian-chun, SANG Li-qun

.................. page:343-348

Characteristics of herbaceous plant resource in Gexigou National Nature Reserve of Yajiang, Sichuan (四川雅江格西沟国家级自然保护区草本植物资源研究)

YANG Nan, ZHANG Xiao-fang, LIU Wei, XIE Deng-feng, SHI Sui-kang, LI Ba-jin, YANG Kong

.................. page:349-353

Mycotoxin contamination of feed in China: current status and research advances (中国饲料霉菌毒素污染现状及研究进展)

SHI Hai-tao, CAO Zhi-jun, LI Jian, GUO Chun-hua, WANG Yong, LI Sheng-li

.................. page:354-366

Correlation between cognitive function and H-magnetic resonance spectroscopy (1H-MRS) in diabetic rats (糖尿病大鼠认知功能与氢质子磁共振波谱(1H-MRS)的相关性研究)

LU Xue-fang, ZHANG Qian, FENG Ming-qian, WEN Zhi, PENG Zhou-feng, GONG Wei, PAN Yuan-hu, YANG Wen-bing

.................. page:367-374

Design and implementation of intelligent guide bracelet based on machine learning (基于机器学习的智能引路手环的设计与实现)

LUO Cheng-li, HUANG Feng, LIN Wei

.................. page:375-382

DOA estimation of vector hydrophone based on GAPSO-MUSIC algorithm (基于GAPSO-MUSIC算法的矢量水听器的DOA估计)

YAO Jian-li, HU Hong-ping, BAI Yan-ping, WANG Jian-zhong, LI Wei

.................. page:383-389

Bochner's formula for spherical monogenics (关于球面单演函数的博克纳公式)

LI Shan-shan

.................. page:390-395

Four positive periodic solutions of a delayed Crowly-Martin type predator-prey system with impulsive and harvesting terms (带有脉冲和收获项的时滞Crowly-Martin型食饵-捕食系统的四个正周期解)

LV Xiao-jun, XIE Hai-ping, LV Peng-hui

.................. page:396-404

Stability of nonlinear neutral differential equations with variable delays (变时滞非线性中立型微分方程的稳定性)

HUANG Ming-hui, ZHAO Guo-rui

.................. page:405-410

Existence and diversity of steady state solution in a cross-diffusion model (一类交叉扩散系统稳态解的存在性和多重性)

ZENG Chun-yi

.................. page:411-414

Hermite Criterion on subsets of finite fields and its generalization (有限域子集上的Hermite判别法及推广)

GUO Yi, ZHANG Qi-fan

.................. page:415-421

Density functional theoretical study onligand-protected ZnmCdnSe10 (m + n =10) quantum dots (配体保护下ZnmCdnSe10(m+n=10)量子点的密度泛函理论研究)

YU Sheng-ping, HUANG Xing-long, FAN Tao-tao

.................. page:422-427

Identification of consumer preference based on fuzzy sets (基于模糊集的消费者偏好识别)

LIU Xiao-hong, LIU Hao-zhen

.................. page:428-433

Creation and value measurement calculation of Chinese time-honored enterprise image recognition system (中华老字号企业形象识别系统的创建与价值测度计算)

LI Jia

.................. page:434-440

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