邢家省, 杨义川, 吴桑. 关于n维正态分布线性函数服从正态分布的证明[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 1-5.

XING Jiasheng, YANG Yichuan, WU Sang. Proof That  n-Dimensional Normally Distributed Linear Functions Obey Normal Distribution[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 1-5.

段丽静, 谢景力, 刘晗嫣. Hilfer-Hadamard型分数阶微分方程边值问题解的存在性[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 6-12.

DUAN Lijing, XIE Jingli, LIU Hanyan. Existence of Solutions for Boundary Value Problems of  Hilfer-Hadamard Type Fractional Differential Equations[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 6-12.

安佰玲, 张德燕. 二次曲面抛物截面存在性定理[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 13-20.

AN Bailing, ZHANG Deyan. Existence Theorems for Parabolic Sections of Quadratic Surface[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 13-20.

李德英, 邱扬帆, 易涛, 肖奕扬. 基于手机App的植物生长环境实时监控系统设计[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 21-28.

LI Deying, QIU Yangfan, YI Tao, XIAO Yiyang. Design of Real-Time Plant Growing Environment Monitoring System Based on Mobilephone App[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 21-28.

唐晗, 陈留洋, 鲁荣波. 基于三维轴距的水印算法[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 29-33.

TANG Han, CHEN Liuyang, LU Rongbo. Watermarking Algorithm Based on 3D Wheelbase[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 29-33.

谢静, 杨盘隆, 魏星. 自适应跌倒前实时检测方法[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 34-40.

XIE Jing, YANG Panlong, WEI Xing. Self-Adaptive and Real-Time Pre-Fall Detection[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 34-40.

江笑雨, 陈加粮, 周浩岚. 水面垃圾清理机器人的设计[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 41-44.

JIANG Xiaoyu, CHEN Jialiang, ZHOU Haolan. Design  of Surface Garbage Cleaning Robot[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 41-44.

王建省, 高如欣, 杨端, 何佳欣. 宋式二级燕尾榫特殊结构的力学性能分析[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 45-51.

WANG Jianxing, GAO Ruxin, YANG Duan, HE Jiaxin. Analysis of Special Structure of Song-Style Second Grade Dovetail Tenon[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 45-51.

刘倩岚, 雷亿辉, 肖育江, 董亚玲. 蒙特卡洛算法在热防护服传热模型建立中的应用[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 52-56.

LIU Qianlan, LEI Yihui, XIAO Yujiang, DONG Yaling. Application of Monte Carlo Algorithm in Heat Transfer Model of Protective Clothing[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 52-56.

胡小锋. 基于多驱动的变频调速系统的控制策略[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 57-62.

HU Xiaofeng. Control Strategy of Variable Frequency Speed Regulation System Based on Multi-Drive[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 57-62.

刘冰, 向晓媚, 谭璐, 陈功锡. 湖南省德夯风景名胜区景观分类[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 63-69.

LIU Bing, XIANG Xiaomei, TAN Lu, CHEN Gongxi. Landscape Classification of Dehang Scenic Spot in Hunan Province[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 63-69.

吕衡, 王本艳, 张成, 刘群, 张代贵. 浙闽龙头草在中国武陵山区分布的新记录[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 70-72.

LYU Heng, WANG Benyan, ZHANG Cheng, LIU Qun, ZHANG Daigui. A New Distribution Record of Meehania zheminensis in Wuling Mountain，China[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 70-72.

刘赛求, 江友良, 邹秋玲, 马渤然, 向延鸿, 伍建华, 熊利芝, 吴贤文. 以乙炔黑为碳源制备Li₃V₂(PO₄)₃/C复合材料[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 73-78.

LIU Saiqiu, JIANG Youliang, ZOU Qiuling, MA Boran, XIANG Yanhong, WU Jianghua, XIONG Lizhi, WU Xianwen. Preparation of Li₃V₂(PO₄)₃/C Composite Material Using Acetylene Black as Carbon Source[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 73-78.

张璟珩, 吴吉林, 左金友, 肖玉春. 武陵山片区品位城市建设时空变化[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 79-86.

ZHANG Jingheng, WU Jilin, ZUO Jinyou, XIAO Yuchun. Temporal and Spatial Variation of Grade City Construction in Wuling Mountain Area[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 79-86.

郎红, 常啸, 李琴, 宋国锋. 新零售目标产品的精准需求分析与预测[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 87-91.

LANG Hong, CHANG Xiao, LI Qin, SONG Guofeng. Accurate Demand Analysis and Prediction for New Retail Target Products[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 87-91.

史瑞雯, 李昊, 郭怡, 刘海根, 常文璐, 金夕茗, 汤思思, 胡剑锋, 彭翠玲, 石晓玥. 基于信息化知识管理系统的中医拔尖人才培养模式[J]. 吉首大学学报（自然科学版）, 2021, 42(3): 92-96.

SHI Ruiwen, LI Hao, GUO Yi, LIU Haigen, CHANG Wenlu, JIN Ximing, TANG Sisi, HU Jianfeng, PENG Cuiling, SHI Xiaoyue. Exploration of TCM Talents Training Model Based on Informationized Knowledge Management System[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(3): 92-96.