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Functional group differentiation of isomeric solvents enables distinct zinc anode chemistry

Nano Research Energy 2023年第2期2卷 218-228页

作者： Chao Liu Qing Li Yilun Lin Zhiquan Wei Yihan Yang Cuiping Han Minshen Zhu haiyan zhang Hongfei Li School of Materials and Energy Guangdong University of TechnologyGuangzhou 510006China Songshan Lake Materials Laboratory Dongguan 523808China Department of Materials Science and Engineering City University of Hong KongHong Kong 999077China School of System Design and Intelligent Manufacturing Southern University of Science and TechnologyShenzhen 518055China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Research Center for Materials Architecturesand Integration of Nanomembranes(MAIN)TU ChemnitzChemnitz 09126Germany

Electrolytes hold the key to realizing reliable zinc(Zn)*** organic molecules have been proven effective in stabilizing Zn anodes;however,irrational comparisons exist due to the uncontrolled molecular weights and functional group *** this work,two“isomeric molecules”:1,2-dimethoxyethane(DME)and 1-methoxy-2-propanol(PM),with identical molecular weights but different functional groups,have been studied as co-solvents in electrolytes,which have delivered distinct electrochemical *** and simulative study indicates the dipole moment induced by the hydroxyl groups in PM(higher molecular polarity than ether groups in DME)reconstructs the space charge region,enhances the concentration of Zn^(2+)in the vicinity of Zn anodes,and in-situ derives different solid electrolyte interphase(SEI)models and electrode-electrolyte interfaces,resulting in exceptional cycling ***,the Zn||Cu cell with PM worked over 2000 cycles with high Coulombic efficiency(CE)of 99.7%.The Zn||Zn symmetric cell cycled over 2000 h at 1 mA·cm^(−2),and showed excellent stability at an ultrahigh current density of 10 mA·cm^(−2)and capacity of 20 mAh·cm^(−2)over 200 h(depth of discharge,DOD of 70%).The Zn||sodium vanadate pouch cell with a high mass loading of 6.3 mg·cm^(−2)and a high capacity of 24 mAh demonstrates superior cyclability after 570 *** work can be a good starting point to provide reliable guidance on electrolyte design for practical aqueous Zn batteries.

关键词： functional group isomeric solvents zinc anode solid electrolyte interphase(SEI)model

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Identification of (-)-bornyl diphosphate synthase from Blumea balsamifera and its application for (-)-borneol biosynthesis in Saccharomyces cerevisiae

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Synthetic and Systems Biotechnology 2022年第1期7卷 490-497页

作者： Rui Ma Ping Su Qing Ma Juan Guo Suiqing Chen Baolong Jin haiyan zhang Jinfu Tang Tao Zhou Chenghong Xiao Guanghong Cui Luqi Huang School of Pharmacy Henan University of Chinese MedicineZhengzhouChina State Key Laboratory Breeding Base of Dao-di Herbs National Resource Center for Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina School of Pharmacy Guizhou University of Traditional Chinese MedicineGuiyangChina

Borneol is a precious monoterpenoid with two chiral structures,(-)-borneol and(+)-*** diphosphate synthase is the key enzyme in the borneol biosynthesis ***(+)-bornyl diphosphate synthases have been reported,but no(-)-bornyl diphosphate synthases have been *** balsamifera leaves are rich in borneol,almost all of which is(-)-*** this study,we identified a high-efficiency(-)-bornyl diphosphate synthase(BbTPS3)from *** that converts geranyl diphosphate(GPP)to(-)-bornyl diphosphate,which is then converted to(-)-borneol after dephosphorylation in ***3 exhibited a K m value of 4.93±1.38μM for GPP,and the corresponding k cat value was 1.49 s−*** strategies were applied to obtain a high-yielding(-)-borneol producing yeast strain.A codon-optimized BbTPS3 protein was introduced into the GPP high-yield strain MD,and the resulting MD-B1 strain produced 1.24 mg⋅L^(-1)(-)-*** truncating the N-terminus of BbTPS3 and adding a Kozak sequence,the(-)-borneol yield was further improved by 4-fold to 4.87 mg⋅L^(-1).Moreover,the(-)-borneol yield was improved by expressing the fusion protein module of ERG20 F96W-N127W-YRSQI-t14-BbTPS3K2,resulting in a final yield of 12.68 mg⋅L^(-1) in shake flasks and 148.59 mg⋅L^(-1) in a 5-L *** work is the first reported attempt to produce(-)-borneol by microbial fermentation.

关键词： Metabolic engineering (-)-borneol (-)-bornyl diphosphate synthase Blumea balsamifera Saccharomyces cerevisiae

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The enhancement of sensitivity of HL-60 cells to arsenic trioxide by Bcl-2 siRNA

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The Chinese-German Journal of Clinical Oncology 2007年第5期6卷 500-502页

作者： haiyan Hu Yuan zhang Dongmei He Institute of Hematology Medical College of Jinan University Guangzhou 510623 China

Objective: To study whether the small-interference RNA (siRNA) targeting against Bcl-2 gene can enhance sensi-tivity of HL-60 cell to arsenic trioxide. Methods: SiRNA was transferred into the HL-60 cells. At 6 h after transfection, the cells were cultured with arsenic trioxide. The cell growth of the HL-60 cells was detected using MTT at 24, 48 and 72 h, respectively. The levels of the Bcl-2 protein and reactive oxygen species (ROS), as well as of the membrane potential of the mitochondrion were determined by flow cytometry. Results: The Bcl-2 siRNA significantly increased the inhibitory action of arsenic trioxide on growth of HL-60 cells. The combination of siRNA with arsenic trioxide resulted in decrease of the Bcl-2 protein level and increase of the ROS level, as well as significant descending of the membrane potential of mitochondrion of HL-60 (P < 0.05). Conclusion: The siRNA targeting Bcl-2 can increase the sensitivity of the HL-60 leukemia cells to arsenic trioxide by inhibiting the expression of Bcl-2 protein.

关键词： Bcl-2 siRNA arsenic trioxide sensitivity

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Frequency-multiplexing photon-counting multi-beam LiDAR

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Photonics Research 2019年第12期7卷 1381-1385页

作者： TIANXIANG ZHENG GUANGYUE SHEN ZHAOHUI LI LEI YANG haiyan zhang E WU GUANG WU State Key Laboratory of Precision Spectroscopy East China Normal UniversityShanghai 200062China Collaborative Innovation Center of Extreme Optics Shanxi UniversityTaiyuan 030006China

We report a frequency-multiplexing method for multi-beam photon-counting light detection and ranging(Li DAR),where only one single-pixel single-photon detector is employed to simultaneously detect the multibeam *** this frequency-multiplexing multi-beam Li DAR,each beam is from an independent laser source with different repetition rates and independent *** a result,the photon counts from different beams could be discriminated from each other due to the strong correlation between the laser pulses and their respective echo photons.A 16-beam Li DAR system was demonstrated in three-dimensional laser imaging with 16 pulsed laser diodes at 850 nm and one single-photon detector based on a Si-avalanche *** frequencymultiplexing method can greatly reduce the number of single-photon detectors in multi-beam Li DAR systems,which may be useful for low-cost and eye-safe Li DAR applications.

关键词： multiplexing laser beam

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超声波及压力处理的TiO_2柱撑蒙脱土的制备与光催化性能

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化工学报 2006年第5期57卷 1242-1246页

作者：那平张海燕天津大学化工学院天津300072

TiO2-pillared montmorillonite catalysts were synthesized by the sol-gel method and then treated by ultrasonic and *** catalysts were characterized by XRD,FT-IR and TEM,and the results indicated that all the TiO2-pillared montmorillonite contained anatase-like TiO2 particles between silicate layers of *** efficiency of phenol degradation under ultraviolet light with TiO2-PILM were tested,and the effects of phenol initial concentration and pH value on the efficiency of photocatalytic degradation of phenol were *** results indicated that the catalyst treated by ultrasonic and pressure showed higher photocatalytic *** efficiency of phenol degradation was higher at initial phenol concentration of 10—20 mg·L -1,TiO2-PILM dosage of 1 g·L -1 and pH value of 3—5.

关键词：超声波 TiO2柱撑蒙脱土苯酚光催化

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Coupling analysis of the major impact on sustainable development of the typical arid region of Turpan in Northwest China

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Regional Sustainability 2020年第1期1卷 48-58页

作者： Lingxiao Sun Xiang Yu Boshan Li haiyan zhang Dong Sha Yao Wang Jiaqiang Lei Yang Yu Martin Welp Ruide Yu Xinjiang Institute of Ecology and Geography Chinese Academy of SciencesUrumqi830011China University of Chinese Academy of Sciences Beijin100049China Eberswalde University for Sustainable Development Eberswalde16225Germany Research Center for Ecology and Environment of Central Asia Chinese Academy of SciencesUrumqi830011China Turpan Agriculture Service Center Turpan838000China State Key Laboratory of Desert and Oasis Ecology Chinese Academy of SciencesUrumqi830011China

Analyzing the sustainable development of a given region can provide an important reference and guide for future *** study selects Turpan(including Gaochang District,Shanshan County,and Toksun County)in Xinjiang Uygur Autonomous Region of Northwest China as the study area and first investigates the essence of regional sustainable *** on the relevant data of the population,economy,and environment of Turpan from 2002 to 2018,we constructed an evaluation index system for three dimensions,namely,the population,economy,and environment,and analyzed them ***,we quantitatively calculated the comprehensive evaluation index,coupling degree,and coupling coordination degree of the sustainable development system of the study *** study finds that Turpan has become increasingly sustainable and orderly;the development level has continually improved from near imbalance to positive *** the study period,the government has adopted appropriate models and paths to promote positive interactions among the population,economy,and environment based on engineering techniques and ecological *** results show that the coupling coordination degree has increased from 0.3692 to 0.8894 during the period 2002–2018,which reflects the actual situation of Turpan and indicates that the proposed analysis method can effectively measure and evaluate the level of sustainable development in this ***,the study also puts forward main functional zoning of Turpan(i.e.,Gaochang District as an optimized development zone,Shanshan County as a major agricultural production zone,and Toksun County as a key ecological function zone)and regional planning principles based on the population,economic,and environmental coupling analysis for the three jurisdictions in Turpan.

关键词： Sustainable development Coupling analysis Coupling coordination degree Comprehensive evaluation index Turpan

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Coronatine Induces an Accumulation of Anthocyanin and Starch in Purple-fleshed Sweetpotato(Ipomoea batatas Lam.)

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Agricultural Science & Technology 2013年第10期14卷 1495-1499页

作者： Baoqing WANG Beitao XIE haiyan zhang Liming zhang Qingmei WANG Shandong Academy of Agricultural Sciences

[Objective] The objective of this research was to examine the effects of COR on anthocyanin and starch content in storage roots of two PFS genotypes, and to explore the relationships between anthocyanin synthesis and starch accumula- tion. [Method] A field experiment was carried out to determine the changes in yielc components, yield, contents of anthocyanin and starch, activities of phenylalanine ammonia-lyase （PAL） and adenosine 5-diphosphate glucose pyrophosphorylase （AG- Pase） in two genotypes of PFS （Ipomoea batatas L., var. ＇Ayamurasaki＇ and ＇Jishu18＇）. [Result] The application of COR significantly increased starch and antho- cyanin content in storage roots of Jishu18 across developmental stages by inducing the activities of PAL and AGPase, and finally enhanced yield by promoting fresh weight of storage roots. Ayamurasaki was insensitive to treatment with COR al- though its PAL activity temporally increased. The starch and anthocyanin content of Aya, and the anthocyanin content of Jishu18 increased progressively across devel- opmental stages with or without COR application, but the starch content of Jishu18 increased initially, then decreased before increasing again without application of COR. Treatment with COR reduced downward trend of starch accumulation in Jishu18. Thus, the effect of COR on accumulation of anthocyanin and starch in storage roots of PFS differs according to genotypes. [Conclusion] The application of 0.05 μmol/L COR may increase starch and anthocyanin content in PFS genotypes with lower starch and anthocyanin content in storage roots.

关键词： Coronatine Purple-fleshed sweet potato Anthocyanin Starch

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Functional characterization of seven terpene synthases from Ophiopogon japonicus via engineered Escherichia coli

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Science of Traditional Chinese Medicine 2024年第4期2卷 312-318页

作者： Wen Xu Qing Ma Tong Chen haiyan zhang Guanglei Ma Sibongile Mafu Juan Guo Xiaohui Fan Guanghong Cui Baolong Jin State Key Laboratory for Quality Ensurance and Sustainable Use of Dao-di Herbs National Resource Center for Chinese Materia MedicaChina Academy of Chinese Medical SciencesBeijingChina College of Pharmaceutical Sciences Zhejiang UniversityHangzhouChina National Key Laboratory of Chinese Medicine Modernization Innovation Center of Yangtze River DeltaZhejiang UniversityJiaxingChina Department of Biochemistry and Molecular Biology University of Massachusetts-AmherstAmherstMAUnited States

Background:Ophiopogon japonicus(L.f)*** in Zhejiang is recognized as the Dao-di medicinal herb for the production of Ophiopogonis ***-7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside,a prominent pharmacologically active compound,serves as a marker distinguishing *** in Zhejiang from those in other geographical *** is synthesized from borneol through glycosylation,with terpene synthase(TPS)being the critical enzyme catalyzing the conversion of terpene precursors into ***:The aim of the study was to define key genes involved in biosynthesis of borneol in ***:The candidate terpene synthase genes were identified from the root and leaf transcriptome data of *** in Zhejiang and the functions of these enzymes were identified using engineered Escherichia ***:This study developed a rapid expression system for monoterpene and sesquiterpene synthases based on engineered *** terpene synthase genes(OjTPS1 to OjTPS7)were identified in different terpene synthase subfamilies,including 2 from TPS-a,4 from TPS-b,and 1 from *** analysis using an engineered system *** demonstrated that all the 7 terpene synthases produced monoterpenes,and OjTPS3,OjTPS5,and OjTPS6 also yielded ***:These 7 terpene synthases produced 13 monoterpenes and 8 ***,OjTPS1 produced borneol establishing the groundwork for elucidating the biosynthetic pathways of borneol-7-O-[β-D-apiofuranosyl-(1→6)]-β-D-glucopyranoside and other volatile oil components.

关键词： Ophiopogon japonicus Ophiopogon japonicus in Zhejiang Terpene synthase Borneol

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Secure Range-Dependent Localization in Wireless Sensor Networks

Secure Range-Dependent Localization in Wireless Sensor Netwo...

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2011 International Conference on Advanced Materials and Computer Science(ICAMCS 2011)

作者： Jia zhang haiyan zhang Jinna Lv Yanchang Liu Henan Institute of Science and Technology

In many applications of wireless sensor network（WSN）, it is essential to ensure that sensors can determine their location, even in the presence of malicious adversaries. However, almost all the localization algorithms need the location information of reference nodes to locate the unknown nodes. When the location information is tempered by the attacks, the accuracy of these algorithms will degrade badly. We present a novel mechanism for secure localization. The mechanism aims to filter out malicious reference signals on the basis of the normal distribution trait among multiple reference signals. This will ensure each node to obtain correct information about its position in the presence of attackers. In this paper, a simulation circumstance which might be attacked is constructed to compare the improved algorithm with original one. The experiment results demonstrate that the proposed mechanism can effectively survive malicious attacks.

关键词： wireless sensor networks Metropolis-Hasting algorithm range-dependent localization Centroid

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Research and Development on Control System of Novel Winding Machine for High-pressure FRP Pipeline

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武汉理工大学学报 2006年第S2期28卷 777-782页

作者： YOU Bo XU Jiazhong HU haiyan CHENG Ningbo zhang Qingli College of Automation,Harbin University of Science and Technology,Harbin 150080,China College of Automation Harbin University of Science and TechnologyHarbin 150080China

The novel winding machine adopted steam inside solidification technics,can wind,solidify and extract high- pressure fiber reinforced plastic (FRP) pipelines in one single *** control system consisted of the winding and extraction subsystem and the steam inside solidification *** order to improve the control precision and stability,a real-time control method was adopted in the winding and extraction *** this method,high-precision TRIO motion controller combined with industrial personal computer (IPC) forms an open-type CNC system which supports *** Modbus protocol was adopted for the communication between the IPC and TRIO motion *** human-machine interface (HMI) was developed with VC++6.0 and the control software of the motion controller was developed with TRIO BASIC *** the steam in- side solidification subsystem,embedded IPC and PLC were used to realize the closed-loop control of the steam temperature and the HMI was developed with MCGS 5.1 under *** show that this system has the good performances of high precision, good stability and high efficiency.

关键词： motion control FRP high-pressure inside solidification remote control

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