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| 1 | Effects of biological soil crusts on water infiltration and evaporation Yanchi Ningxia, Maowusu Desert, China显示文摘Biological soil crusts serve as a vanguard for improving the ecological environment in arid,semi-arid desertification areas.It is a good indicator of the level of improvement which the local ecological environment is undertaking.In desert areas,water condition is a key factor of improving the ecological environment.As a first layer protection,biological crusts play an important role in local vegetation succession due to their abilities to conserve and maintain moisture.Using Maowusu desert in Yanchi of Ningxia province as an example,after three years of research,this paper chooses three kinds of biological crusts including lichen,moss and cyanobacterial which are under the cover of Artemisia ordosica as research objects.The results of this study indicate that,the closer biological crusts are to Artemisia ordosica vegetation,the thicker they become.In the same position of Artemisia ordosica vegetation,the thickness of moss crusts is the highest,followed by lichen crusts,and the thickness of cyanobacterial crusts is the lowest.Biological soil crusts coverage protects the natural water content of soil layers from0 to 5 cm.Also,it effects falling water to infiltrate deeper,and cannot prevent the surface water content from evaporating effectively.The effect of biological crusts blocking water infiltration decreases with the increase of rainfall.At the same rainfall level,moss crusts provide the strongest water infiltration blockage,followed by lichen crusts and cyanobacterial crusts.With the increase of rainfall,the depth of water infiltration increases.At the same rainfall level,the relationship of water infiltration depth is as follows:cyanobacterial crusts > lichen crusts > moss crusts.With the increase of biological crusts thickness,they blocking water infiltration capacity is stronger,and the depth of water infiltration is smaller.Analysis on the characteristic of simulated rainfall process on biological crusts shows that sandy land can be fixed by applying appropriate artificial biological crusts to build a sustainable forest protection system and to create a stable ecosystem in desertification area. | Bai Li Jiarong Gao Xiuru Wang Lan Ma Qiang Cui Maik Vest | 2016 | International Journal of Sediment Research2016，31，4： | 10 |
| 2 | Synthesis and characterization of hyperbranched aromatic poly(ether imide)s显示文摘 | Li Xiuru Li Yuesheng Tong Yuejing | 2003 | Macromolecules2003，36，15： | 1 |
| 3 | Green organic light-emitting diodes with improved stability and efficiency utilizing a wide band gap material as the host显示文摘 | Hao Tang Xiuru Wang Ying Li | 2008 | Displays2008，29，： | 1 |
| 4 | Facile synthesis and characterization of aromatic and semioaromatic hyperbranched poly (ester-amide)s 显示文摘 | Li Xiuru Zhan Jie Lin Ying | 2005 | Macromolecules2005，38，： | 1 |
| 5 | Green organic light- emitting diodes with improved stability and efficiency utili- zing a wide band gap material as the host 显示文摘 | Tang Hao Wang Xiuru Li Ying | 2008 | Displays2008，29，5： | 1 |
| 6 | Synthesis and characterization of biodegradable hyperbranched poly(esteramide)s based on natural material 显示文摘 | Li Xiuru Su Yali Chen Qingyong | 2005 | Biomacromolecules2005，6，6： | 1 |
| 7 | Green organic light-emitting diodes with improved stability and efficiency utilizing a wide band gap material as the host 显示文摘 | Hao Tang Xiuru Wang Ying Li | 2008 | Displays2008，29，5： | 1 |
| 8 | Synthesis andcharacterization of hyperbranched aromatic Poly(etherimide)s显示文摘 | Li Xiuru Li Yuesheng Tong Yuejing | 2003 | Macromolecules2003，36，15： | 1 |
| 9 | Characterization of putative mannoprotein in Kluyveromyces lactis for lactase production显示文摘Lactase is a member of theβ-galactosidase family of enzymes that can hydrolyze lactose into galactose and glucose.However,extracellular lactase production was still restricted to the process of cell lysis.In this study,lactase-producing Kluyveromyces lactis JNXR-2101 was obtained using a rapid and sensitive method based on the fluorescent substrate 4-methylumbelliferyl-β-D-galactopyranoside.The purified enzyme was identified as a neutral lactase with an optimum pH of 9.To facilitate extracellular production of lactase,a putative mannoprotein KLLA0_E01057g of K.lactis was knocked out.It could effectively promote cell wall degradation and lactase production after lyticase treatment,which showed potential on other extracellular enzyme preparation.After optimizing the fermentation conditions,the lactase yield from mannoprotein-deficient K.lactis JNXR-2101ΔE01057g reached 159.62 U/mL in a 5-L fed-batch bioreactor. | Xiuru Shen Lingtong Liao Guoqiang Zhang Jingwen Zhou Jianghua Li Guocheng Du | 2023 | Synthetic and Systems Biotechnology2023，8，1： | 0 |
| 10 | Electrocatalytic biofilm reactor for effective and energyefficient azo dye degradation:the synergistic effect of MnO_(x)/Ti flow-through anode and biofilm on the cathode显示文摘Dyeing wastewater treatment remains a challenge.Although effective,the in-series process using electrochemical oxidation as the pre-or post-treatment of biodegradation is long.This study proposes a compact dual-chamber electrocatalytic biofilm reactor(ECBR)to complete azo dye decolorization and mineralization in a single unit via anodic oxidation on a MnO_(x)/Ti flow-through anode followed by cathodic biodegradation on carbon felts.Compared with the electrocatalytic reactor with a stainlesssteel cathode(ECR-SS)and the biofilm reactor(BR),the ECBR increased the chemical oxygen demand(COD)removal efficiency by 24%and 31%(600 mg/L Acid Orange 7 as the feed,current of 6 mA),respectively.The COD removal efficiency of the ECBR was even higher than the sum of those of ECR-SS and BR.The ECBR also reduced the energy consumption(3.07 kWh/kg COD)by approximately half compared with ECR-SS.The advantages of the ECBR in azo dye removal were attributed to the synergistic effect of the MnO_(x)/Ti flow-through anode and cathodic biofilms.Catalyzed by MnIV=O generated on the MnO_(x)/Ti anode under a low applied current,azo dyes were oxidized and decolored.The intermediate products with improved biodegradability were further mineralized by the cathodic aerobic heterotrophic bacteria(non-electrochemically active)under the stimulation of the applied current.Taking advantage of the mutual interactions among the electricity,anode,and bacteria,this study provides a novel and compact process for the effective and energyefficient treatment of azo dye wastewater. | Yinghui Mo Liping Sun Lu Zhang Jianxin Li Jixiang Li Xiuru Chu Liang Wang | 2023 | Frontiers of Environmental Science & Engineering2023，17，4： | 0 |
| 11 | Spectral computed tomography-guided photothermal therapy of osteosarcoma by bismuth sulfide nanorods显示文摘Osteosarcoma(OS)is the most normally primary malignant bone cancer in adolescents.Due to their analogous X-ray attenuation properties,healthy bones and malignancies with iodine enhancement cannot be distinguished by conventional computed tomography(CT).As one kind of spectral CT,dual-energy CT(DECT)offers multiple functions for material separation and cancer treatments.Herein,bismuth sulfide(Bi_(2)S_(3))nanorods(NRs)were synthesized as special contrast agents(CAs)for DECT,which have superior imaging properties than clinical iodine CAs.At the same time,the high photothermal conversion rates of Bi_(2)S_(3)NRs can be used for DECT-guided photothermal therapy(PTT)to destroy OS and inhibit tumor growth under the guidance of DECT imaging.Importantly,DECT imaging real-timely monitored that PTT could accelerate the diffusion of Bi2S3 NRs in the tumor,obtaining detailed information on the internal distribution of nanomaterials in tumors around the bone to avoid injury to normal tissues by PTT.Overall,the proposed strategy of DECT imaging-guided PTT appears enormous promise for bone disease treatment. | Yuhan Li Xiaoxue Tan Han Wang Xiuru Ji Zi Fu Kai Zhang Weijie Su Jian Zhang Dalong Ni | 2023 | Nano Research2023，16，7： | 0 |
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