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For Selected: Download Citations EndNote Ris BibTeX Toggle Thumbnails Select Ultrastructure of Cymbella subhelvetica Krammer LONG Jiyan, LIU Bing, XU Sanmei, TANG Haipeng Journal of Jishou University(Natural Sciences Edition)    2022, 43 (4): 67-71.   DOI: 10.13438/j.cnki.jdzk.2022.04.012 Abstract （416）      PDF（pc） （18201KB）（66）       Knowledge map    Save To reveal the ultrastructural features of Cymbella subhelvetica Krammer,this study carries out a thorough observation using scanning electron microscope.The observational results demonstrate that C. subhelveticapossesses the following diagnostic features:(1)valves distinctly dorsiventral;(2)distal raphe fissure curved dorsally,proximal raphe ends teardrop not deflected;(3)no apical pore fields;(4)striae uniseriate,slightly radiate except closing to each apex where becoming convergent dorsal striae 9~11/10 μm,ventral striae 9~13/10  μm;(5) Areolae mostly lineate,occasionally Y-shaped,and areolae 30~33/10 μm;(6) 4~7 stigmata.Above characteristics together constitute a unique combination of features that distinguish and identify C. subhelvetica. Reference | Related Articles | Metrics | Comments（0） Select Photocatalytic Degradation of Bisphenol a by Sulfur-Modified Cadmium-Rich Biomass Carbon CAO Jiaji, WANG Ping, LING Dingxun, HUANG Chao Journal of Jishou University(Natural Sciences Edition)    2022, 43 (4): 72-80.   DOI: 10.13438/j.cnki.jdzk.2022.04.013 Abstract （434）      PDF（pc） （3410KB）（100）       Knowledge map    Save Using biomass sorghum after remediation of cadmium-contaminated soil as raw material,sulfur-modified biochar based photocatalyst was prepared by calcination and hydrothermal reaction.The morphology and crystal structure of the photocatalyst were analyzed by scanning electron microscopy and X-ray diffraction.The results showed that cadmium sulfide crystals were successfully loaded on the biochar.The photocatalytic degradation experiment found that the photocatalyst can rapidly degrade bisphenol A (BPA) in water,and its photocatalytic degradation rate is 15.5 times and 2.4 times that of biomass sorghum biochar and cadmium sulfide,respectively.The influencing factor experiment found that the acidic conditions and the increase of the material dosage can significantly improve the photocatalytic degradation rate of BPA.Cycling experiments showed that the material has good photocatalytic stability,and quenching experiments showed that the main active species in the reaction are holes (h+),followed by ·OH and ·O-2. Reference | Related Articles | Metrics | Comments（0） Select A Study on the Ultrastructure of Two Species of Frustulia (Bacillariophyta) YUAN Li, LIU Bing, ZHOU Yangyan, DU Jie, ZHANG Wanying Journal of Jishou University(Natural Sciences Edition)    2021, 42 (4): 59-65.   Abstract （509）      PDF（pc） （18679KB）（287）       Knowledge map    Save This paper reviews the naming changes of two Frustulia species and provides two new Chinese names for them: F. asiatica and F. amphipleuroides. Based on the observation of the light and scanning electron microscopy on the above two species, we find that: (1) the unique feature combination of F. asiatica is its linear-lanceolate valve shape and higher stria density; (2) the unique feature combination of F. amphipleuroides is 0~3 isolated poroids and obviously elongated central area. Reference | Related Articles | Metrics | Comments（0） Select Research Progress of Inorganic Nonmetallic Coatings on Rechargeable Aqueous Zinc Ion Batteries JIN Boxuan, MA Kaixuan, ZHANG Yu, ZHANG Ruochen, WANG Ling, HE Zhangxing Journal of Jishou University(Natural Sciences Edition)    2021, 42 (4): 66-74.   DOI: 10.13438/j.cnki.jdzk.2021.04.013 Abstract （547）      PDF（pc） （13183KB）（174）       Knowledge map    Save The rechargeable aqueous zinc-ion batteries (ZIBs), as a new energy storage technology, have advantages of good safety, high energy density and low production cost, as well as the current problems restricting the development of zinc-ion batteries. Based on the design of high performance zinc anode, the inhibition mechanism of inorganic nonmetal coating on zinc dendrite growth is analyzed. According to different coating materials, the research progress of zinc anode coated with inorganic nonmetallic materials is reviewed. Reference | Related Articles | Metrics | Comments（0） Select Landscape Classification of Dehang Scenic Spot in Hunan Province LIU Bing, XIANG Xiaomei, TAN Lu, CHEN Gongxi Journal of Jishou University(Natural Sciences Edition)    2021, 42 (3): 63-69.   DOI: 10.13438/j.cnki.jdzk.2021.03.011 Abstract （648）      PDF（pc） （7218KB）（193）       Knowledge map    Save This paper aims to identify the landscape characteristics and distribution rules of Dehang Scenic Spot in Hunan Province. By using the aerial map and field survey results, the landscape was classified into different types according to the principle of comprehensiveness, dominant factors and hierarchy. Human disturbance intensity and habitat were used as indicators. The results showed that: (1) The landscape of Dehang Scenic Spot could be divided into 4 landscape classes of 16 landscape types. The natural landscape class contained the most landscape types and distributed widely in the Dehang Scenic Spot, with high plant diversity. The semi-natural class and semi-artificial landscape class were under the intense human disturbance and had low plant diversity, but they had too much relativity with human life. The artificial landscape class mostly presented the regular spatial layout. The Miao nationality wooden architecture was dominant in this class, which embodied the unique national culture of this region. (2) Taking the natural landscape of sun-facing soil slope as the matrix, the landscape types in Dehang Scenic Spot gradually decreased with the widening of the terrain from north to south. Among them, Dehangcun Scenic Area, Donghe Scenic Area and Qiabihe Scenic Area had the most abundant landscape types, but the landscape characteristics of them were quite different. Based on the landscape characteristics and distribution rules of Dehang Scenic Spot, the suggestions were put forward in order to provide a scientific basis for the effective protection and rational use of landscape resources and set the foundation for the study of landscape ecology and the relationship between landscape diversity and plant diversity in this area. Besides, we also hope that this article could provide a new idea and reference case for the selection of classification indicator in the small and medium-scale landscape. Reference | Related Articles | Metrics | Comments（0） Select A New Distribution Record of Meehania zheminensis in Wuling Mountain，China LYU Heng, WANG Benyan, ZHANG Cheng, LIU Qun, ZHANG Daigui Journal of Jishou University(Natural Sciences Edition)    2021, 42 (3): 70-72.   DOI: 10.13438/j.cnki.jdzk.2021.03.012 Abstract （741）      PDF（pc） （3314KB）（275）       Knowledge map    Save Reported a new record of Meehania zheminensis A. Takano, Pan Li & G.-H. Xia, which is similar to Meehania montis-koyae Ohwi a endemic species of Japan. M. zheminensis has been found and identified as M. montis-koyae at first in Zhejiang and Fujian provinces of China, believed M. zheminensis is a new species based more genetic and mor-phological data. This species is a new record of Wuling Mountain and also in Guizhou, Hunan and Hubei Province. All the voucher specimens were preserved in Herbarium of Jishou University (JIU). Reference | Related Articles | Metrics | Comments（0） Select Preparation of Li3V2(PO4)3/C Composite Material Using Acetylene Black as Carbon Source LIU Saiqiu, JIANG Youliang, ZOU Qiuling, MA Boran, XIANG Yanhong, WU Jianghua, XIONG Lizhi, WU Xianwen Journal of Jishou University(Natural Sciences Edition)    2021, 42 (3): 73-78.   DOI: 10.13438/j.cnki.jdzk.2021.03.013 Abstract （889）      PDF（pc） （6044KB）（329）       Knowledge map    Save In this paper, Li3V2(PO4)3/C material is successfully prepared by the simple sol-gel method and treated by further calcining. The effect of carbon coating on the morphology, structure and electrochemical performance of the material is comprehensively investigated. It's demonstrated that the monoclinic structure (P21/n) of Li3V2(PO4)3/C retains complete after carbon coating. The sample with 7 nm coating layer presents excellent crystallinity, which coated by 2 times contents （C20-LVP） of carbon. The electrochemical performance has been improved a lot, with its discharge capacity increasing to 120.3 mAh/g compared with 103.6mAh/g of the sample without carbon coating（C00-LVP）. In addition, a good retention rate of 91% can be obtained, since the discharge ratio can achieve 104.5 mAh/g the after 60 cycles. Reference | Related Articles | Metrics | Comments（0） Select Determination and Analysis of Complete Mitochondrial Genome of Ozobranchus jantseanus： Based on Pacbio and Illumina Sequencing GU Shengli, LIU Jianjun, SUN Entao, ZHAN Xiaodong, NIE Liuwang Journal of Jishou University（Natural Sciences Edition)    Select Extraction and Fatty Acid Analysis of Seed Oil of Discocleidion rufescens, a Species in Eeuphorbiaceae LIU Zhaojun, PENG Zhen, ZHU LI, PENG Xiaolie, LIU Shibao Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2020.03.007 Select Advances in Research on Chemical Components and Pharmacological Activities of Artemisia Princeps CHEN Jiabei， CHEN Gongxi Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2020.02.011 Select Inhibitory Activity Screening of Extract from Lithocarpus Polystachyus Rehd. Against α-Glucosidase FANG Hailian, LIU Meiling, LI Shiyao, XIAO Zhuping Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2020.02.012 Select Analysis of Fatty Acids Components in Tinospora Capillipes by GC-MS GUO Hongwei, TIAN Yungang, WANG Jianxia, LIU Yihan, LIU Bing, WEI Hua Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.06.008 Select Isolation and Biochemical Properties of Lactobacillus in Low-Salt Pickles SONG Haorui, LI Yan, WANG Le, YAO Yifan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.06.009 Select Preliminary Assay of Mineral Elements and Fatty Acids in the Larvae of Protohermes Costalis (Walker) PAN Fengliu, QU Yuguo, ZHAO Chijun, ZHANG Youxiang, HUANG Xinglong Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.05.009 Select Optimum Cultivation Conditions for Extracellular Polysaccharide in Lactobacillus SONG Haorui, LI Yan, WANG Le, YAO Yifan Journal of Jishou University（Natural Sciences Edition)    DOI: 10.13438/j.cnki.jdzk.2019.05.010