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| 1 | Structural insights of phosphorylated into the recognition FUNDC1 by LC3B in mitophagy显示文摘 | Mengqi Lv Chongyuan Wang Fudong Li Junhui Peng Bin Wen Qingguo Gong Yunyu Shi Yajun-Tang | 2017 | Protein & Cell2017,8,1: | 21 |
| 2 | Effect of N and P addition on soil organic C potential mineralization in forest soils in South China显示文摘Atmospheric nitrogen deposition is at a high level in some forests of South China. The effects of addition of exogenous N and P on soil organic carbon mineralization were studied to address: (1) if the atmospheric N deposition promotes soil C storage through decreasing mineralization; (2) if the soil available P is a limitation to organic carbon mineralization. Soils (0-10 cm) was sampled from monsoon evergreen broad-leaved forest (MEBF), coniferous and broad-leaved mixed forest (CBMF), and Pinus massoniana forest (PMF) in Dinghushan Biosphere Reserve (located in Guangdong Province, China). The soils were incubated at 25°C for 45 weeks, with addition of N (NH4NO3 solution) or P (KH2PO4 solution). CO2-C emission and the inorganic N (NH4+-N and NO3?-N) of the soils were determined during the incubation. The results showed that CO2-C emission decreased with the N addition. The addition of P led to a short-term sharp increase in CO2 emission after P application, and the responses of CO2-C evolution to P addition in the later period of incubation related to forest types. Strong P inhibition to CO2 emission occurred in both PMF and CBMF soils in the later incubation. The two-pool kinetic model was fitted well to the data for C turnover in this experiment. The model analysis demonstrated that the addition of N and P changed the distribution of soil organic C between the labile and recalcitrant pool, as well as their mineralization rates. In our experiment, soil pH can not completely explain the negative effect of N addition on CO2-C emission. The changes of soil inorganic N during incubation seemed to support the hypothesis that the polymerization of added nitrogen with soil organic compound by abiotic reactions during incubation made the added nitrogen retard the soil organic carbon mineralization. We conclude that atmospheric N deposition contributes to soil C accretion in the three subtropical forest ecosystems, however, the shortage of soil available P in CBMF and PMF may also retard soil organic C mineralization. | OUYANG, Xuejun ZHOU, Guoyi HUANG, Zhongliang ZHOU, Cunyu LI, Jiong SHI, Junhui ZHANG, Deqiang | 2008 | Journal of Environmental Sciences2008,20,9: | 17 |
| 3 | Fabrication,microstructures,and properties of copper matrix composites reinforced by molybdenum-coated carbon nanotubes显示文摘Multiwalled carbon nanotubes(CNTs) were coated by a molybdenum layer using carbonyl thermal decomposition process with a precursor of molybdenum hexacarbonyl.The Mo-coated CNTs(Mo-CNTs) were added into copper powders to fabricate Mo-CNT/Cu composites by means of mechanical milling followed by spark plasma sintering.The Mo-CNTs were uniform dispersion in the Cu matrix when their contents were 2.5 vol.%-7.5 vol.%,while some Mo-CNT clusters were clearly observed at additions of 10.0 vol.%-15.0 vol.% Mo-CNTs in the mixture.The mechanical,electrical,and thermal properties of the Mo-CNT/Cu composites were characterized,and the results showed that the tensile strength and hardness were 2.0 and 2.2 times higher than those of CNT-free specimens,respectively.Moreover,the Mo-CNT/Cu composites exhibited an enhanced thermal conductivity but inferior electrical conductivity compared with sintered pure Cu.The uncoated CNT/Cu composites were fabricated by the similar processes,and the measured tensile strength,hardness,thermal conductivity,and electrical conductivity of the CNT/Cu composites were lower than those of the Mo-CNT/Cu composites. | NIE Junhui JIA Chengchang JIA Xian ZHANG Yafeng SHI Na LI Yi | 2011 | Rare Metals2011,30,4: | 12 |
| 4 | In vivo superresolution photoacoustic computed tomography by localization of single dyed droplets显示文摘Photoacoustic(PA)computed tomography(PACT)is a noninvasive hybrid imaging technique that combines optical excitation and acoustic detection to realize high contrast,high resolution,and deep penetration in biological tissues.However,the spatial resolution of PACT is limited by acoustic diffraction.Here,we report in vivo superresolution PACT,which breaks the acoustic diffraction limit by localizing the centers of single dyed droplets that are flowing in blood vessels.The droplets were prepared by dissolving hydrophobic absorbing dye in oil,followed by mixing with water.The dyed droplets generate much higher-amplitude PA signals than blood and can flow smoothly in vessels;thus,they are excellent tracers for localization-based superresolution imaging.The in vivo resolution enhancement was demonstrated by continuously imaging the cortical layer of a mouse brain during droplet injection.The droplets that were flowing in the vessels were localized,and their center positions were used to construct a superresolution image that exhibits sharper features and more finely resolved vascular details.An improvement in spatial resolution by a factor of 6 has been realized in vivo by the droplet localization technique. | Pengfei Zhang Lei Li Li Lin Junhui Shi Lihong V.Wang | 2019 | Light(Science & Applications)2019,8,1: | 6 |
| 5 | Spectral Efficiency and Power Allocation for Mixed-ADC Massive MIMO System显示文摘This paper investigates the achievable uplink spectral efficiency(SE) of a massive multi-input multi-output(MIMO) system with a mixed analog-to-digital converter(ADC) receiver architecture, in which some antennas are equipped with full-resolution ADCs while others are deployed with low-resolution ADCs. We derive the theoretical results and corresponding approximate expressions of the achievable SE in multi-cell systems with maximum ratio combining(MRC) detector and in single-cell systems with zero-forcing(ZF) detector. Based on approximated results, the effects of physical parameters, including the transmit power, the number of antennas, the proportion of full-resolution ADCs and the quantization precision of the low-resolution ADCs on the achievable SE are revealed. Furthermore, we propose the power allocation algorithms based on the lower bound and upper bound of approximate achievable SE. Our results show that the total achievable SE improves by increasing the number of BS antennas, the signal-to-noise ratio(SNR), and the quantization precision. Results showcase that proposed power allocation algorithms remarkably improve the total achievable SE comparing to the equal power allocation algorithm, which verifies the effectiveness of our proposed schemes. | Mengjiao Zhang Weiqiang Tan Junhui Gao Shi Jin | 2018 | China Communications2018,15,3: | 6 |
| 6 | Warm temperature compromises JA-regulated basal resistance to enhance Magnaporthe oryzae infection in rice显示文摘Changes in global temperatures profoundly affect the occurrence of plant diseases.It is well known that rice blast can easily become epidemic in relatively warm weather.However,the molecular mechanism remains unclear.In this study,we show that enhanced blast development at a warm temperature(22C)compared with the normal growth temperature(28C)is rice plant-determined.Comparative transcriptome analysis revealed that jasmonic acid(JA)biosynthesis and signaling genes in rice could be effectively induced by Magnaporthe oryzae at 28C but not at 22C.Phenotypic analyses of the osaoc1 and osmyc2 mutants,OsCOI1 RNAi lines,and OsMYC2-OE plants further demonstrated that compromised M.oryzaeinduced JA biosynthesis and signaling lead to enhanced blast susceptibility at the warm temperature.Consistent with these results,we found that exogenous application of methyl jasmonate served as an effective strategy for improving blast resistance under the warm environmental conditions.Furthermore,decreased activation of JA signaling resulted in the downregulated expression of some key basal resistance genes at 22C when compared with 28C.Among these affected genes,OsCEBiP(chitin elicitorbinding protein precursor)was found to be directly regulated by OsMYB22 and its interacting protein OsMYC2,a key component of JA signaling,and this contributed to temperature-modulated blast resistance.Taken together,these results suggest that warm temperature compromises basal resistance in rice and enhances M.oryzae infection by reducing JA biosynthesis and signaling,providing potential new strategies for managing rice blast disease under warm climate conditions. | Jiehua Qiu Junhui Xie Ya Chen Zhenan Shen Huanbin Shi Naweed I.Naqvi Qian Qian Yan Liang Yanjun Kou | 2022 | Molecular Plant2022,15,4: | 5 |
| 7 | Multifocal photoacoustic microscopy using a single-element ultrasonic transducer through an ergodic relay显示文摘Optical-resolution photoacoustic microscopy(OR-PAM)has demonstrated high-spatial-resolution imaging of optical absorption in biological tissue.To date,most OR-PAM systems rely on mechanical scanning with confocally aligned optical excitation and ultrasonic detection,limiting the wide-field imaging speed of these systems.Although several multifocal OR-PA(MFOR-PA)systems have attempted to address this limitation,they are hindered by the complex design in a constrained physical space.Here,we present a two-dimensional(2D)MFOR-PAM system that utilizes a 2D microlens array and an acoustic ergodic relay.Using a single-element ultrasonic transducer,this system can detect PA signals generated from 400 optical foci in parallel and then raster scan the optical foci patterns to form an MFOR-PAM image.This system improves the imaging resolution of an acoustic ergodic relay system from 220 to 13μm and enables 400-folds shorter scanning time than that of a conventional OR-PAM system at the same resolution and laser repetition rate.We demonstrated the imaging ability of the system with both in vitro and in vivo experiments. | Yang Li Terence T.W.Wong Junhui Shi Hsun-Chia Hsu Lihong V.Wang | 2020 | Light(Science & Applications)2020,9,1: | 4 |
| 8 | Friction and wear properties of copper matrix composites reinforced by tungsten-coated carbon nanotubes显示文摘Carbon nanotubes (CNTs) were coated by tungsten layer using metal organic chemical vapor deposition process with tungsten hexacarbonyl as a precursor. The W-coated CNTs (W-CNTs) were dispersed into Cu powders by magnetic stirring process and then the mixed powders were consolidated by spark plasma sintering to fabricate W-CNTs/Cu composites. The CNTs/Cu composites were fabricated using the simi-lar processes. The friction coefficient and mass wear loss of W-CNTs/Cu and CNTs/Cu composites were studied. The results showed that the W-CNT content, interfacial bonding situation, and applied load could influence the friction coefficient and wear loss of W-CNTs/Cu com-posites. When the W-CNT content was 1.0 wt.%, the W-CNTs/Cu composites got the minimum friction coefficient and wear loss, which were decreased by 72.1% and 47.6%, respectively, compared with pure Cu specimen. The friction coefficient and wear loss of W-CNTs/Cu composites were lower than those of CNTs/Cu composites, which was due to that the interfacial bonding at (W-CNTs)-Cu interface was bet-ter than that at CNTs-Cu interface. The friction coefficient of composites did not vary obviously with increasing applied load, while the wear loss of composites increased significantly with the increase of applied load. | NIE Junhui JIA Xian JIA Chengchang LI Yi ZHANG Yafeng SHI Na | 2011 | Rare Metals2011,30,6: | 3 |
| 9 | Thiocyanate-induced labilization of schwertmannite: Impacts and mechanisms显示文摘Schwertmannite is an amorphous iron(III)-oxyhydroxysulfate that forms in acid mine drainage(AMD) environments. The characteristic of high heavy metal adsorption capability makes schwertmannite a potentially useful, environmentally friendly material in wastewater treatment. Unstable schwertmannite is prone to recrystallization.Understanding the mechanisms that induce schwertmannite labilization and affect its capacity to remove heavy metals are of great environmental and geochemical significance.Thiocyanate(SCNˉ) is a hazardous pseudohalide that is also normally found in AMD.However, little is known about the impact of Fe(III)-binding ligand SCNˉ on schwertmannite stability and its subsequent capacity to bind trace elements. Here, we investigated the adsorption of SCNˉ on schwertmannite and subsequent mineral transformation to characterize this little-known process. The appearance of Fe2+indicated that the interactions between schwertmannite and SCNˉ may involve complexation and reduction reactions. Results showed that the majority of the adsorbed-SCNˉ was immobilized on schwertmannite during the 60-days transformation. The transformation rates of schwertmannite increased with increasing concentrations of SCNˉ. Goethite was detected as the dominant transformation product with or without SCNˉ. The mechanisms of SCNˉ-promoted dissolution of schwertmannite can be described as follows:(1) formation of Fe(III)–NCS complexes on the schwertmannite surface and in solution, a process which increases the reactivity of solid phase Fe(III);(2) the extraction of Fe(III) from schwertmannite by SCNˉ and subsequent schwertmannite dissolution; and(3) the formation of secondary minerals from extracted Fe(III). These findings may improve AMD treatment strategies and provide insight into the use and potential reuse of schwertmannite as a trace element sorbent. | Cong Fan Chuling Guo Junhui Zhang Cui Ding Xiaofei Li John R.Reinfelder Guining Lu Zhenqing Shi Zhi Dang | 2019 | Journal of Environmental Sciences2019,31,6: | 3 |
| 10 | Development of retinol-binding protein 4 immunocolloidal gold fast test strip using high-sensitivity monoclonal antibodies generated by DNA immunization显示文摘DNA 免疫是为高亲密关系的 monoclonal 抗体产生的一个有效方法。这里,我们对松香油绑定蛋白质 4 描述几高质量的 monoclonal 抗体(mAbs ) 的产生(RBP4 ) ,为肾反常和机能障碍的一个重要标记,与 DNA 的一个联合方法, priming 和蛋白质增加。产生的 mAbs 能与高敏感并且用这些 mAbs 绑在 RBP4,一块 immunocolloidal 金牌快测试长带被构造。长带能交上结果 < 5 min 并且与大约 1 ng/ml 的察觉限制是很敏感的。小规模的临床的测试表明这脱衣的结果根据在市场上当前可得到的一个标记酶的 immunosorbent 试金工具包的好。因而,它能为在诊所的更方便、更快的 RBP4 决心是有用的。 | Chao Bian Fang Zhang Feng Wang Zhiyang Ling Min Luo Hongqiang Wu Yizhuo Sun Junhui Li B ingnan Li Jingyan Zhu Linna Tang Yanyan Zhou Qunfang Shi Yongyong Ji Lin Tian Guomei Lin Yu Fan Niansong Wang Bing Sun | 2010 | Acta Biochimica et Biophysica Sinica2010,42,12: | 2 |
| 11 | Distributed Estimation of Oscillations in Power Systems: An Extended Kalman Filtering Approach显示文摘Online estimation of electromechanical oscillation parameters provides essential information to prevent system instability and blackout and helps to identify event categories and locations.We formulate the problem as a state space model and employ the extended Kalman filter to estimate oscillation frequencies and damping factors directly based on data from phasor measurement units.Due to considerations of communication burdens and privacy concerns,a fully distributed algorithm is proposed using diffusion extended Kalman filter.The effectiveness of proposed algorithms is confirmed by both simulated and real data collected during events in State Grid Jiangsu Electric Power Company. | Zhe Yu Di Shi Zhiwei Wang Qibing Zhang Junhui Huang Sen Pan | 2019 | CSEE Journal of Power and Energy Systems2019,5,2: | 2 |
| 12 | Energy transformation analysis during friction welding of superalloy lnconel 718显示文摘Energytransformationanalysisduringfrictionweldingofsuperalloylnconel718DuanLiyu;DuSuigeng;ShiWeiqing;YianJunhuiandPangYunhong... | Duan Liyu Du Suigeng Shi Weiqing Yian Junhui and Pang Yunhong (Nothwestern Polytechnic university, Xi’an) | 1994 | China Welding1994,3,1: | 1 |
| 13 | Temperature and precipitation control of the spatial variation of terrestrial ecosystem carbon exchange in the Asian region显示文摘 | Zhi Chen Guirui Yu Jianping Ge Xiaomin Sun Takashi Hirano Nobuko Saigusa Qiufeng Wang Xianjin Zhu Yiping Zhang Junhui Zhang Junhua Yan Huimin Wang Liang zhao Yanfen Wang Peili Shi Fenghua Zhao | 2013 | Agricultural and Forest Meteorology2013,,: | 1 |
| 14 | Near-field acoustic levitation and applications to bearings:a critical review显示文摘The importance to industry of non-contact bearings is growing rapidly as the demand for highspeed and high-precision manufacturing equipment increases.As a recently developed non-contact technology,near-field acoustic levitation(NFAL)has drawn much attention for the advantages it offers,including no requirement for an external pressurized air supply,its compact structure,and its ability to adapt to its environment.In this paper,the working mechanism of NFAL is introduced in detail and compared to all existing non-contact technologies to demonstrate its versatility and potential for practical applications in industry.The fundamental theory of NFAL,including gas film lubrication theory and acoustic radiation pressure theory is presented.Then,the current stateof-the-art of the design and development of squeeze film air bearings based on NFAL is reviewed.Finally,future trends and obstacles to more widespread use are discussed. | Minghui Shi Kai Feng Junhui Hu Jiang Zhu Hailong Cui | 2019 | International Journal of Extreme Manufacturing2019,1,3: | 1 |
| 15 | Influence of laser-conditioning on laser-induced damage properties of ZnSe thin films显示文摘 | Shi Zhiming Dong Junhui Ma Wen | 2013 | Advanced Materials Research2013,,: | 1 |
| 16 | Quality control method commercially available wild Jujube leaf tea beased on HPLC characteristic fi ngerprint analysis of fl avonoid compounds显示文摘 | Rutan Zhang Junhui Chen Qian Shi | 2014 | Journal of separation science2014,37,12: | 1 |
| 17 | Biochar pyrolyzed at low temperature enhanced acidophilous plant growth by promoting rhizospheric microbes in a slightly alkaline urban soil显示文摘Biochar has been considered as a potential way to enhance acidophilous plant growth in alkaline soils.However,whether such enhancements are closely linked with biochar pyrolysis temperature and its improvements in rhizospheric soil fertility and microbial activities remains largely unknown.We performed a pot experiment to investigate changes in azalea(Rhodo-dendron)morphology and physiology,as well as its rhizosphere soil chemical and biological properties in a slightly alkaline urban soil under the amendment of biochars that pyrolyzed at three temperatures(i.e.,350,550 and 700°C).Our results showed that the effects of biochars on plant growth and soil properties depended on pyrolysis temperature.In comparison with the non-amended control,350 and 550°C biochars showed significant promotions on the azalea growth in terms of photosynthetic characteristics,biomass,root morphology,and N and P uptake.Whereas,700°C biochar showed an inhibi-tion effect on them.350°C biochar decreased soil pH and increased soil available P and K contents and the activities ofα-glucosidase,N-β-glucosaminidase,phosphatase and sulfatase.In addition,350°C biochar significantly enhanced bacterial 16S rRNA and fungal 18S rRNA gene abundances in the rhizosphere soil of azalea and mycorrhizal infection.Correlation analysis indicated that soil pH,available nutrients and fungal abundance had positive associations with the enhanced plant growth parameters.Therefore,our findings suggest that biochar produced at low temperature could be a feasible strategy for enhancing acidophilous azalea growth and improving urban soil quality. | Huimin Zhou Xiaoying Li Chang Li Lisi He Xiaoqing Liu Zheng Xiao Xiaobo Sun Gaoling Shi Jiale Su Junhui Chen | 2021 | Biochar2021,3,4: | 1 |
| 18 | Crystal structure of human BS69 Bromo-ZnF-PWWP reveals its role in H3K36me3 nucleosome binding显示文摘 | Juncheng Wang Su Qin Fudong Li Sai Li Wei Zhang Junhui Peng Zhiyong Zhang Qingguo Gong Jihui Wu Yunyu Shi | 2014 | Cell Research2014,24,7: | 0 |
| 19 | Running-in behavior of a H‒DLC/Al_(2)O_(3) pair at the nanoscale显示文摘Diamond-like carbon(DLC)film has been developed as an extremely effective lubricant to reduce energy dissipation;however,most films should undergo running-in to achieve a super-low friction state.In this study,the running-in behaviors of an H–DLC/Al_(2)O_(3) pair were investigated through a controllable single-asperity contact study using an atomic force microscope.This study presents direct evidence that illustrates the role of transfer layer formation and oxide layer removal in the friction reduction during running-in.After 200 sliding cycles,a thin transfer layer was formed on the Al2O3 tip.Compared with a clean tip,this modified tip showed a significantly lower adhesion force and friction force on the original H–DLC film,which confirmed the contribution of the transfer layer formation in the friction reduction during running-in.It was also found that the friction coefficient of the H–DLC/Al_(2)O_(3) pair decreased linearly as the oxygen concentration of the H–DLC substrate surface decreased.This phenomenon can be explained by a change in the contact surface from an oxygen termination with strong hydrogen bond interactions to a hydrogen termination with weak van der Waals interactions.These results provide new insights that quantitatively reveal the running-in mechanism at the nanoscale,which may help with the design optimization of DLC films for different environmental applications. | Pengfei SHI Junhui SUN Yunhai LIU Bin ZHANG Junyan ZHANG Lei CHEN Linmao QIAN | 2021 | Friction2021,9,6: | 0 |
| 20 | Genetic architecture of leaf morphology revealed by integrated trait module in Catalpa bungei显示文摘Leaves are crucial for maintaining plant growth and development via photosynthesis,and their function is simultaneously regulated by a suite of phenotypic traits.Although much is known about the genetic architecture of individual leaf traits,unraveling the genetic basis of complex leafmorphology remains a challenge.Based on the functional correlation and coordination ofmulti-traits,we divided 15 leaf morphological traits into three modules,comprising size(area,length,width,and perimeter),shape(leaf lobes,aspect ratio,circularity,rectangularity,and the relevant ratios),and color(red,green,and blue)for an ornamental tree species,Catalpa bungei.A total of 189 significant single-nucleotide polymorphisms were identified in the leaves of C.bungei:35,82,and 76 in the size,shape,and color modules,respectively.Four quantitative trait loci were common between the size and shape modules,which were closely related according to phenotype correlation,genetic mapping,and mRNA analysis.The color module was independent of them.Synergistic changes in the aspect ratio,leaf lobe,and circularity suggest that these traits could be the core indicators of the leaf shape module.The LAS and SRK genes,associated with leaf lobe and circularity,were found to function in plant defense mechanisms and the growth of leaves.The associations between the SRK and CRK2 genes and the leaf lobe and circularity traits were further verified by RT-qPCR.Our findings demonstrate the importance of integrating multi-trait modules to characterize leaf morphology and facilitate a holistic understanding of the genetic architecture of intraspecific leaf morphology diversity. | Miaomiao Zhang Bingyang Liu Yue Fei Xiaowei Yang Linjiao Zhao Chaozhong Shi Yueying Zhang Nan Lu Chuangye Wu Wenjun Ma Junhui Wang | 2023 | Horticulture Research2023,10,4: | 0 |