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| 1 | Mechanisms of Plant Responses and Adaptation to Soil Salinity显示文摘Soil salinity is a major environmental stress that restricts the growth and yield of crops.Understanding the physiological,metabolic,and biochemical responses of plants to salt stress and mining the salt tolerance-associated genetic resource in nature will be extremely important for us to cultivate salt-tolerant crops.In this review,we provide a comprehensive summary of the mechanisms of salt stress responses in plants,including salt stress-triggered physiological responses,oxidative stress,salt stress sensing and signaling pathways,organellar stress,ion homeostasis,hormonal and gene expression regulation,metabolic changes,as well as salt tolerance mechanisms in halophytes.Important questions regarding salt tolerance that need to be addressed in the future are discussed. | Chunzhao Zhao Heng Zhang Chunpeng Song Jian-Kang Zhu Sergey Shabala | 2020 | The Innovation2020，1，1： | 25 |
| 2 | Identification and primary genetic analysis of Arabidopsis stomatal mutants in response to multiple stresses显示文摘In response to variable environmental conditions, guard cells located in the leaf epidermis can integrate and cope with a multitude of complicated stimuli, thereby making stomata in an appro- priate state. However, many signaling components in guard cell signaling remain elusive. In our laboratory, a tool for non-invasive remote infrared thermal images was used to screen an ethyl methane sulfonate-mutagenized population for Arabidopsis stomatal response mutants under multiple stresses (ABA, H2O2, CO2, etc.). More than forty 'hot' or 'cold' mutants were isolated (above or below 0.5℃ in con- trast to normal plantlets). Identification and primary genetic analysis of these mutants show that they are monogenic recessive mutations and there exist distinct difference in stomata apertures compared to wild type. These mutants in response to various environmental stresses and hormones were comprehen- sively investigated, which enables us to further un- derstand the cross-talk in different signal transduction pathways. | SONG Yuwei KANG Yanli LIU Hao ZHAO Xiaoliang WANG Pengtao AN Guoyong ZHOU Yun MIAO Chen SONG Chunpeng | 2006 | Chinese Science Bulletin2006，51，21： | 11 |
| 3 | Recent advance in electromagnetic shielding of MXenes显示文摘As a new type of two-dimensional material,MXene’s unique layered structure,outstanding electrical conductivity,low density,tunable surface chemistry,and solution processability make it receive extensive attention in various fields,especially for the lightweight shielding mate rials since the report on electromagnetic interference(EMI) shielding of 2D Ti3 C2 Tx in 2016.In this review,the progress on the MXe nes material including their synthetic strategies,prope rties and EMI application is highlighted.First,the recent advance on the different synthesis methods and properties of MXene is summarized.According to their intrinsic characteristics,the application of MXene in EMI fields is then discussed.Finally,the challenges and perspective on the future development of MXene in low-cost preparation and practical application are proposed. | Yanqing Yao Jia Zhao Xuanhe Yang Chunpeng Chai | 2021 | Chinese Chemical Letters2021，32，2： | 5 |
| 4 | Centrifuge experiment on the penetration test for evaluating undrained strength of deep-sea surface soils显示文摘Rapid advances in deep-sea mining engineering have created an urgent need for the accurate evaluation of the undrained strength of marine soils,especially surface soils.Significant achievements have been made using full-flow penetration penetrometers to evaluate marine soil strength in the deep penetration;however,a method considering the effect of ambient water on the surface penetration needs to be established urgently.In this study,penetrometers with multiple probes were developed and used to conduct centrifuge experiments on South China Sea soil and kaolin clay.First,the forces on the probes throughout the penetration process were systematically analyzed and quantified.Second,the spatial influence zone was determined by capturing the resistance changes and sample crack development,and the penetration depth for a sample to reach a stable failure mode was given.Third,the vane shear strength was used to invert the penetration resistance factor of the ball and determine the range of the penetration resistance factor values.Furthermore,a methodology to determine the penetration resistance factors for surface marine soils was established.Finally,the effect of the water cavity above various probes in the surface penetration was used to formulate an internal mechanism for variations in the penetration resistance factor. | Xingsen Guo Tingkai Nian Wei Zhao Zhongde Gu Chunpeng Liu Xiaolei Liu Yonggang Jia | 2022 | International Journal of Mining Science and Technology2022，32，2： | 2 |
| 5 | Potential application of FoldX force field based protein modeling in zinc finger nucleases design显示文摘Engineered sequence-specific zinc finger nucleases (ZFNs) make the highly efficient modification of eukaryotic genomes possible.However,most current strategies for developing zinc finger nucleases with customized sequence specificities require the construction of numerous tandem arrays of zinc finger proteins (ZFPs),and subsequent largescale in vitro validation of their DNA binding affinities and specificities via bacterial selection.The labor and expertise required in this complex process limits the broad adoption of ZFN technology.An effective computational assisted design strategy will lower the complexity of the production of a pair of functional ZFNs.Here we used the FoldX force field to build 3D models of 420 ZFP-DNA complexes based on zinc finger arrays developed by the Zinc Finger Consortium using OPEN (oligomerized pool engineering).Using nonlinear and linear regression analysis,we found that the calculated protein-DNA binding energy in a modeled ZFP-DNA complex strongly correlates to the failure rate of the zinc finger array to show significant ZFN activity in human cells.In our models,less than 5% of the three-finger arrays with calculated protein-DNA binding energies lower than 13.132 kcal mol 1 fail to form active ZFNs in human cells.By contrast,for arrays with calculated protein-DNA binding energies higher than 5 kcal mol 1,as many as 40% lacked ZFN activity in human cells.Therefore,we suggest that the FoldX force field can be useful in reducing the failure rate and increasing efficiency in the design of ZFNs. | HE ZuYong MEI Gui ZHAO ChunPeng CHEN YaoSheng | 2011 | Science China(Life Sciences)2011，54，5： | 2 |
| 6 | Physical simulation of fluid flow and production performance in extra-low permeability porous media显示文摘For extra-low permeability reservoirs,with a permeability of about 0.3×10-3 μm2,fluid flow and production performance in cores were studied.A long core holder with a multi-location piezometric measurement was specially designed.An artificial long core,about 700 mm long and with a cross section of 45mm×45mm,was used.In the experiment,pressure distribution along the core can be measured in real time.Single phase flow in the core was investigated.Different modes of production in long cores were also simulated including natural depletion,water flooding,and advanced water flooding.Through physical simulation,flow parameters were collected and production characteristics in extra-low permeability cores were studied.From experimental results,it can be seen that fluid flow in extra-low permeability cores is different from that in high permeability cores.Transmission of pressure in extra-low permeability cores is very slow,and it needs a long time for the pressure to become stable.The distribution curve of pressure along the core is nonlinear and the production rate in extra-low permeability reservoirs decreases sharply.The development effects of different production modes in extra-low permeability cores were compared with one another.Among the production modes,advanced water flooding has much potential for effective development of extra-low permeability reservoirs.Natural depletion and conventional water flooding can also be used in early production periods.In addition,the countermeasures and some ideas especially for the potential development of extra-low permeability reservoirs are suggested. | You Yuan Yue Xiang’an Li Mingyi Zhao Chunpeng Zhang Tao | 2009 | Petroleum Science2009，6，4： | 2 |
| 7 | Detection of Hydrazine at MXene/ZIF-8 Nanocomposite Modified Electrode显示文摘ZIF-8 with excellent chemical and physical properties is a promising material for the field of electrochemical sensing.However,the poor electrical conductivity of ZIF-8 severely limits its electrochemical performance.Here,we report a method that can significantly improve the conductivity of ZIF-8 by intercalating Ti_(3)C_(2)T_(x) MXene as a conductive platform.Benefiting from higher conductivity and unique electrocatalytic activity,the obtained MXene/ZIF-8 nanocomposite presented the worthy analytical performance for hydrazine sensing.The successful fabrication of MXene/ZIF-8 holds great promise for the design of electrochemical sensors,and it is a promising material to promote the development of new electrode materials. | Yanqing Yao Xuhui Han Xuanhe Yang Jia Zhao Chunpeng Chai | 2021 | Chinese Journal of Chemistry2021，39，2： | 1 |
| 8 | Recycled Aggregate Pervious Concrete: Analysis of Influence of Water-Cement Ratio and Fly Ash under Single Action and Optimal Design of Mix Proportion显示文摘Pervious concrete is recommended,which is of great benefit to the ecological environment and human living environment.In this paper,the influences of five water-cement ratios and four fly ash contents to replace the cement by mass with a water-cement ratio of 0.30 on the properties of Recycled Aggregate Pervious Concrete(RAPC)were studied.Following this,based on the Grey relational-Technique for Order Preference by Similarity to an Ideal Solution(TOPSIS)optimization method,the strength,permeability,abrasion loss rate,and material costs of RAPC were adopted as evaluation indices to establish a mix proportion optimization model.The results show that the increase of water-cement ratio and fly ash replacement level of RAPC leads to decreased compres-sive strength while an increase in the permeability and abrasion loss rate.According to test results based on the optimal model 0.30 was identified as the best mix proportion.In addition,ecological-economic analysis of RAPC raw materials was carried out by comparing different natural aggregates.The results of EE(embodied energy)and ECO 2e(embodied CO_(2) emission)pointed out that the combination of recycled aggregate and fly ash leads to sig-nificant ecological and economic benefits. | Shoukai Chen Chunpeng Xing Mengdie Zhao Junfeng Zhang Lunyan Wang Qidong He | 2022 | Journal of Renewable Materials2022，10，3： | 1 |
| 9 | Experimental and finite element analysis studies of a reduction-force reducing traction method for pelvic fracture surgeries显示文摘Pelvic fracture is among the most complicated fractures in traumatic orthopedics,with high mortality and morbidity rates.The main difficulty associated with the reduction surgery is significant muscle resistance.It then becomes necessary to decrease the reduction force against this strong muscle resistance,for improving surgical safety.Here,we propose a novel traction method for decreasing the reduction force during pelvic reduction,and investigate the performance of the elastic traction method on decreasing the reduction force using experimental tests and simulation-based analyses.From the experimental results,the reduction force decreased by 59.2%when 10 kg of elastic traction was applied.We also establish a musculoskeletal model of the pelvic fracture reduction,for analyzing the muscle resistance and the optimal traction force applied in reduction surgeries.The elastic traction method can counteract the muscle resistance increase in the non-traction direction owing to its flexibility.We conclude that the optimal traction force applied should be in the 10–15 kg range,and recommend adopting a dynamic traction strategy rather than continuous traction in clinical settings.Elastic traction is very promising for various surgeries that require traction,including pelvic reduction.It significantly reduces force,which can significantly reduce the physical exertion of the operating surgeon,the possibility of additional injuries to the operated patient,and promotes robot-assisted reduction surgeries. | Jixuan Liu Ke Xu Chunpeng Zhao Gang Zhu Yu Wang Xinbao Wu Wei Tian | 2022 | Medicine in Novel Technology and Devices2022，，1： | 0 |
| 10 | Dual-Timescale Control for Power Electronic Zigzag Transformer显示文摘Power electronic zigzag transformer is an attractive solution for the flexible interconnection of smart distribution networks.It is constituted by slow-response and low-precision thyristor converters and fast-response and high-accuracy voltage source converters.This paper models its primary circuit and addresses its basic operation mechanism.Then a dual-timescale control scheme is investigated to realize the coordinated regulation of both types of converter.A simulation case is established in PSCAD containing interconnected mid-voltage distribution networks.Simulations with poor-and well-matched control timescales are both carried out.And accordingly,the power flow controllability under these conditions is compared.When the shorter control timescale is no more than tenth of the longer one,the power electronic zigzag transformer will operate with satisfying performances. | Chunpeng Zhang Zhengming Zhao | 2017 | CES Transactions on Electrical Machines and Systems2017，1，3： | 0 |
| 11 | The structure-based design of zinc finger nucleases can facilitate genomic editing显示文摘A recent study of significant research value carried out at the State Key Laboratory of Biocontrol, School of Life Sciences, Sun Yat-Sen University, Guangzhou, | ZuYong He Gui Mei ChunPeng Zhao YaoSheng Chen | 2011 | Chinese Science Bulletin2011，56，21： | 0 |
| 12 | Design of Intelligent Drunk Driving Detection System Based on Internet of Things显示文摘In recent years,with the rapid development of China’s economy and the continuous improvement of people’s living standards,the number of motor vehicles and the number of drivers in the country have grown rapidly.Due to the increase in the number of vehicles and the number of motorists,the traffic accident rate is increasing,causing serious economic losses to society.According to the traffic accident statistics of the Ministry of Communications of China in 2009,more than 300,000 car accidents occurred in the year,most of which were caused by drunk driving.Therefore,this paper proposes a design scheme based on the Internet of Things-based vehicle alcohol detection system.The system uses STM8S003F3 single-chip microcomputer as the main control chip of the system,combined with alcohol sensor MQ-3 circuit,LCD1602 liquid crystal display circuit,buzzer alarm circuit and button circuit to form a complete alcohol detection module hardware system.The main functions of the system are as follows:the alcohol sensor in the car detects the driver’s alcohol concentration value,and displays the value on the LCD screen.The buzzer alarm is exceeded and the information is sent to the traffic police department and the family’s mobile phone through the GPRS module.The system can effectively make up for the shortcomings of traffic police detection,which has certain research significance. | Xiaorong Zhao Hongjin Zhu Xiufang Qian Chunpeng Ge | 2019 | Journal on Internet of Things2019，1，2： | 0 |
| 13 | A High Gain, Noise Cancelling 2515-4900 MHz CMOS LNA for China Mobile 5G Communication Application显示文摘With the development of the times,people’s requirements for communication technology are becoming higher and higher.4G communication technology has been unable to meet development needs,and 5G communication technology has emerged as the times require.This article proposes the design of a low-noise amplifier(LNA)that will be used in the 5G band of China Mobile Communications.A low noise amplifier for mobile 5G communication is designed based on Taiwan Semiconductor Manufacturing Company(TSMC)0.13μm Radio Frequency(RF)Complementary Metal Oxide Semiconductor(CMOS)process.The LNA employs self-cascode devices in current-reuse configuration to enable lower supply voltage operation without compromising the gain.This design uses an active feedback amplifier to achieve input impedance matching,avoiding the introduction of resistive negative feedback to reduce gain.A common source(CS)amplifier is used as the input of the low noise amplifier.In order to achieve the low power consumption of LNA,current reuse technology is used to reduce power consumption.Noise cancellation techniques are used to eliminate noise.The simulation results in a maximum power gain of 22.783,the reverse isolation(S12)less than-48.092 dB,noise figure(NF)less than 1.878 dB,minimum noise figure(NFmin)=1.203 dB,input return loss(S11)and output return loss(S22)are both less than-14.933 dB in the frequency range of 2515-4900 MHz.The proposed Ultra-wideband(UWB)LNA consumed 1.424 mW without buffer from a 1.2 V power supply. | Xiaorong Zhao Weili Cheng Hongjin Zhu Chunpeng Ge Gengyuan Zhou Zhongjun Fu | 2020 | Computers, Materials & Continua2020，，8： | 0 |
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