|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Super-absorbent swellable polymer as grouting material for treatment of karst water inrush显示文摘Grouting is the most commonly used method to control water inrush in underground engineering.Traditional cement-based materials are easy to dilute and hard to coagulate under the influence of large flow and high-velocity water inrush.To address these deficiencies,a new type of polymer grouting material with an excellent expansion ratio was synthesised.The material quickly absorbs water and has an expansion ratio of 1:300.The material is composed of a superabsorbent polymer(SAP),glycerol,and ethanol.The effects of water quality on the expansion ratio and expansion rate of the material were examined,and the best solid–liquid ratio for the slurry was determined by fluidity measurements.A karst specially designed pipeline water inrush test device showed that 800 g of SAP can achieve 0.6 m/s water flow blockage in the smooth pipeline,demonstrating that the ability of the SAP slurry to block water inrush is superior to those of other materials.This study provides a reference for water inrush plugging,and has important implications for the reduction and control of karst pipeline-type water inrush disasters,ensuring the safety of construction sites and preventing loss of life and damage to property. | Shucai Li Chenyang Ma Rentai Liu Mengjun Chen Jia Yan Zhenjun Wang Shaolong Duan Huasheng Zhang | 2021 | International Journal of Mining Science and Technology2021，31，5： | 2 |
| 2 | The Phytophthora effector Avh241 interacts with host NDR1-like proteins to manipulate plant immunity显示文摘Plant pathogens rely on effector proteins to suppress host innate immune responses and facilitate colonization.Although the Phytophthora sojae RxLR effector Avh241 promotes Phytophthora infection,the molecular basis of Avh241 virulence remains poorly understood.Here we identified non-race specific disease resistance 1(NDR1)-like proteins,the critical components in plant effector-triggered immunity(ETI)responses,as host targets of Avh241.Avh241 interacts with NDR1 in the plasma membrane and suppresses NDR1-participated ETI responses.Silencing of GmNDR1s increases the susceptibility of soybean to P.sojae infection,and overexpression of GmNDR1s reduces infection,which supports its positive role in plant immunity against P.sojae.Furthermore,we demonstrate that GmNDR1 interacts with itself,and Avh241 probably disrupts the self-association of GmNDR1.These data highlight an effective counter-defense mechanism by which a Phytophthora effector suppresses plant immune responses,likely by disturbing the function of NDR1 during infection. | Bo Yang Sen Yang Baodian Guo Yuyin Wang Wenyue Zheng Mengjun Tian Kaixin Dai Zehan Liu Haonan Wang Zhenchuan Ma Yan Wang Wenwu Ye Suomeng Dong Yuanchao Wang | 2021 | Journal of Integrative Plant Biology2021，63，7： | 1 |
| 3 | New environmental-friendly yellow pigments Y4-xAxMoO9+δ(A =Ta,Tb)显示文摘A series of inorganic yellow pigments with general formula Y4-xAxMoO9+δ(A = Ta, Tb), where x = 0,0.05,0.1,0.2, 0.4 for Ta and χ = 0, 0.005, 0.01.0.03, 0.05 for Tb,were synthesized by a conventional ceramic method at 1400 ℃ for 6 h in air. The samples were characterized by XRD,EDS,XPS,SEM,TG-DSC,UV-vis-NIR reflectance spectroscopy and CIE L*a*b* color scales. It is found that the substitution of A(A = Ta, Tb) for Y3+ in Y4 MoO9 decreases the NIR reflectance of the pigment samples, but the developed pigments Y4-xAxMoO9+δ(A = Ta, Tb) still exhibit impressive NIR solar reflectance. The brighter yellow color of inorganic pigments Y4-xAxMoO9+δ(A = Ta, Tb) is available when x is about 0.1 for Ta and 0.01 for Tb. The results make them a series of potential candidates as ecological yellow pigments because of their high reflectance, lightness, intense coloration and excellent thermal and chemical stability. | Mengjun Cai Shuaifeng Chen Xinsheng Ma Jianding Chen | 2019 | Journal of Rare Earths2019，37，7： | 0 |
| 4 | Injectable hydrogels for spinal cord injury repair显示文摘Spinal cord injury(SCI)often causes severe functional impairment of body,which leads to a huge burden to the patient and the whole society.Many strategies,especially biomaterials,have been employed for SCI repair.Among various biomaterials,injectable hydrogels have attracted much attention because of their ability to load functional components and be injected into the lesioned area without surgeries.In this review,we summarize the recent progress in injectable hydrogels for SCI repair.We firstly introduce the pathophysiology of SCI,which reveals the mechanism of clinical manifestations and determines the therapeutic schedule.Then,we describe the original sources of polymers and the crosslinking manners in forming hydrogels.After that,we focus on the in vivo therapeutic strategies and effects of injectable hydrogels.Finally,the recent challenges and future outlook of injectable hydrogel for SCI repair are concluded and discussed.We believe this review can be helpful and inspire the further development of injectable hydrogels for SCI repair. | Huan Wang Hui Zhang Zhongyu Xie Keng Chen Mengjun Ma Yuejiao Huang Minli Li Zhaopeng Cai Peng Wang Huiyong Shen | 2022 | Engineered Regeneration2022，3，4： | 0 |
| 5 | Flexible and highly-sensitive pressure sensor based on controllably oxidized MXene显示文摘Conductive Ti_(3)C_(2)T_(x)MXenes have been widely investigated for the construction of flexible and highly-sensitive pressure sensors.Although the inevitable oxidation of solution-processed MXene has been recognized,the effect of the irreversible oxidation of MXene on its electrical conductivity and sensing properties is yet to be understood.Herein,we construct a highly-sensitive and degradable piezoresistive pressure sensor by coating Ti_(3)C_(2)T_(x)MXene flakes with different degrees of in situ oxidation onto paper substrates using the dipping-drying method.In situ oxidation can tune the intrinsic resistance and expand the interlayer distance of MXene nanosheets.The partially oxidized MXene-based piezoresistive pressure sensor exhibits a high sensitivity of 28.43 kPa^(-1),which is greater than those of pristine MXene,over-oxidized MXene,and state-of-the-art paper-based pressure sensors.Additionally,these sensors exhibit a short response time of 98.3 ms,good durability over 5000 measurement cycles,and a low force detection limit of 0.8 Pa.Moreover,MXene-based sensing elements are easily degraded and environmentally friendly.The MXene-based pressure sensor shows promise for practical applications in tracking body movements,sports coaching,remote health monitoring,and human–computer interactions. | Yanan Ma Yongfa Cheng Jian Wang Si Fu Mengjun Zhou Yue Yang Baowen Li Xin Zhang Ce-Wen Nan | 2022 | InfoMat2022，4，9： | 0 |
| 6 | Fast Solution Method for the Large-scale Unit Commitment Problem with Long-term Storage显示文摘Long-term storage(LTS)can provide various services to address seasonal fluctuations in variable renewable energy by reducing energy curtailment.However,long-term unit commitment(UC)with LTS involves mixed-integer programming with large-scale coupling constraints between consecutive intervals(state-of-charge(SOC)constraint of LTS,ramping rate,and minimum up/down time constraints of thermal units),resulting in a significant computational burden.Herein,an iterative-based fast solution method is proposed to solve the long-term UC with LTS.First,the UC with coupling constraints is split into several sub problems that can be solved in parallel.Second,the solutions of the sub problems are adjusted to obtain a feasible solution that satisfies the coupling constraints.Third,a decoupling method for long-term time-series coupling constraints is proposed to determine the global optimization of the SOC of the LTS.The price-arbitrage model of the LTS determines the SOC boundary of the LTS for each sub problem.Finally,the sub problem with the SOC boundary of the LTS is iteratively solved independently.The proposed method was verified using a modified IEEE 24-bus system.The results showed that the computation time of the unit combination problem can be reduced by 97.8%,with a relative error of 3.62%. | Bo Li Chunjie Qin Ruotao Yu Wei Dai Mengjun Shen Ziming Ma Jianxiao Wang | 2023 | Chinese Journal of Electrical Engineering2023，9，3： | 0 |
| 7 | Ultra‐low single‐atom Pt on g‐C_(3)N_(4)for electrochemical hydrogen peroxide production显示文摘Platinum-based materials show excellent electrocatalytic performance and have good potential for use in fuel cells.However,the high cost and scarce reserves have restricted their wide application.Therefore,it is a challenging task to reduce the amount of Pt as well as ensure good catalytic performance.Herein,anchoring of Pt single atoms(0.21 wt‰)with ultra-low content on g-C_(3)N_(4)nanosheets(Pt_(0.21)/CN)has been successfully achieved.The obtained Pt_(0.21)/CN catalyst shows excellent two-electron oxygen reduction(2e-ORR)capability for hydrogen peroxide(H_(2)O_(2)).Compared with CN,its H_(2)O_(2)selectivity increased from 80%to 98%in 0.1M KOH,surpassing those in most of the reported studies.Besides,the H_(2)O_(2)production rate of Pt_(0.21)/CN is 767 mmol gcat^(-1)h-1,which is 11.1 times that of CN.This work may pave the way toward the development of an effective method for the design of noblemetal electrocatalysts with low metal loading and high catalytic activity. | Hongcen Yang Niandi Lu Juntao Zhang Rui Wang Shuhao Tian Mengjun Wang Zhixia Wang Kun Tao Fei Ma Shanglong Peng | 2023 | Carbon Energy2023，5，9： | 0 |
| 8 | Artificial intelligence in bladder cancer:current trends and future possibilities显示文摘To the Editor:Bladder cancer is the most common malignant tumor of the urinary system in the Asian population.In China,it is reported 80,000 new cases each year with an increasing incidence every year.Among these cases,75%are of non-muscle invasive bladder cancer(NMIBC).In muscular invasive bladder cancer(MIBC)and NMIBC patients,radical cystectomy is considered as a primary approach of treatment due to the higher risk of tumor progression.Furthermore. | Jun Ma Deep K.Vaishnani Rixu Lin Jiayu Lyu Bingyan Ni Yang Zhang Mengjun Hu Guorong Chen | 2022 | Chinese Medical Journal2022，，7： | 0 |
| 9 | Theoretical and experimental study on the rheological properties of WIS grout and the dispersion and sealing mechanism显示文摘Recently a new grout material called water inflow sealing(WIS) was invented for sealing water inflow in tunneling and underground constructions. In this study, a special experimental method called intubated counter grouting(ICG) was proposed to investigate the influence of water dispersion on the rheological properties of the grout during the grouting process, and to testify the sealing performance of the grout,such as instant gelling ability(IGA) and anti-dispersion ability(ADA). In the experiment, dispersion was restricted in the downstream of the channel with a high turbulence intensity. The influences of ADA and IGA were therefore decoupled and evaluated separately. Experimental results revealed two distinctive sealing mechanisms of WIS. For a low initial velocity of water, WIS turned the shear flow of water into an overall movement of a plug by absorbing water into the particles. For a high initial velocity and the situation that the particles reached the outlet before sufficiently expanding, WIS modified the rheology of the water in the channel and reduced its velocity till the static state. The distinctive feature of WIS brings a reformation on the sealing mechanism and provides an effective way to control water inflow with high pressure and velocity. | Mengmeng Zhou Shucai Li Zhuo Zheng Rentai Liu Mengjun Chen Chenyang Ma | 2022 | International Journal of Mining Science and Technology2022，32，4： | 0 |
您所在的机构暂未开通此部分的功能，请联系管理员