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| 1 | Reduced turnover rate of topsoil organic carbon in old-growth forests:a case study in subtropical China显示文摘Background:Old-growth forests are irreplaceable with respect to climate change mitigation and have considerable carbon(C)sink potential in soils.However,the relationship between the soil organic carbon(SOC)turnover rate and forest development is poorly understood,which hinders our ability to assess the C sequestration capacity of soil in old-growth forests.Methods:In this study,we evaluated the SOC turnover rate by calculating the isotopic enrichment factor β(defined as the slope of the regression between ^(13)C natural abundance and log-transformed C concentrations)along 0-30 cm soil profiles in three successional forests in subtropical China.A lower β(steeper slope)is associated with a higher turnover rate.The three forests were a 60-year-old P.massoniana forest(PF),a 100-year-old coniferous and broadleaved mixed forest(MF),and a 400-year-old monsoon evergreen broadleaved forest(BF).We also analyzed the soil physicochemical properties in these forests to examine the dynamics of SOC turnover during forest succession and the main regulators.Results:The β value for the upper 30-cm soils in the BF was significantly(p<0.05)higher than that in the PF,in addition to the SOC stock,although there were nonsignificant differences between the BF and MF.The β value was significantly(p<0.05)positively correlated with the soil recalcitrance index,total nitrogen,and available nitrogen contents but was significantly(p<0.01)negatively correlated with soil pH.Conclusions:Our results demonstrate that SOC has lower turnover rates in old-growth forests,accompanied by higher soil chemical recalcitrance,nitrogen status,and lower soil pH.This finding helps to elucidate the mechanism underlying C sequestration in old-growth forest soils,and emphasizes the important value of old-growth forests among global C sinks. | Xin Xiong Juxiu Liu Guoyi Zhou Qi Deng Huiling Zhang Guowei Chu Ze Meng Deqiang Zhang | 2021 | Forest Ecosystems2021，8，4： | 4 |
| 2 | Dynamic Airy imaging through high_efficiency broadband phase microelements by femtosecond laser direct writing显示文摘Manipulating Airy beams to symmetric Airy beams(SABs)with abruptly autofocusing and self accelerating properties has attracted much attention.With such a particular propagation dynamic,SABs may provide great potential in dynamic signal imaging.On the other hand,the generation of SABs by spatial light modulators suffers from the limitations of phase gradient accuracy,low optical efficiency(<40%),and a bulky footprint.Therefore,exploring imaging applications and optimal generation methods of these Airy-type beams deserves further research.Here,based on the coordinate transformation of SAB,an asymmetric Airy beam(AAB)is realized.Symmetric/asymmetric cubic phase microplates(SCPPs/ACPPs)are designed and fabricated for generating SAB/AAB.The SCPP/ACPP demonstrates superior performance:compact construction(60μm × 60μm × 1.1μm),continuous variation of phase,high efficiency(~81%at 532 nm),and broadband operation from 405 to 780 nm.Dynamic imaging under monochromatic and polychromatic lights is realized by the SAB/AAB,indicating various results at different propagation distances with a certain initial signal.Further investigation reveals that the SCPP on a soft substrate maintains its physical dimensions and optical properties unchanged during stretching.Our work enables wide potential applications in integrated optics,beam manipulation,and imaging. | ZE CAI XINBO QI DENG PAN SHENGYUN JI JINCHENG NI ZHAOXIN LAO CHEN XIN JIAWEN LI YANLEI HU DONG Wu JIARU CHI | 2020 | Photonics Research2020，8，6： | 3 |
| 3 | First experimental constraints on WIMP couplings in the effective field theory framework from CDEX显示文摘We present weakly interacting massive particles(WIMPs) search results performed using two approaches of effective field theory from the China Dark Matter Experiment(CDEX), based on the data from both CDEX-1B and CDEX-10 stages. In the nonrelativistic effective field theory approach, both time-integrated and annual modulation analyses were used to set new limits for the coupling of WIMP-nucleon effective operators at 90% confidence level(C.L.) and improve over the current bounds in the low mχregion. In the chiral effective field theory approach, data from CDEX-10 were used to set an upper limit on WIMP-pion coupling at 90% C.L. We for the first time extended the limit to the m_(χ)<6 GeV/c^(2) region. | Yi Wang Zhi Zeng Qian Yue LiTao Yang KeJun Kang YuanJing Li Mehment Agartioglu HaiPeng An JianPing Chang JingHan Chen YunHua Chen JianPing Cheng Cheng Yi Chiang WenHan Dai Zhi Deng ChangHao Fang XinPing Geng Hui Gong QiuJu Guo XuYuan Guo HongJian He Li He ShengMing He JinWei Hu TuChen Huang HanXiong Huang HaiTao Jia LiPing Jia Xi Jiang HauBin Li JianMin Li Jin Li MingXuan Li RenMingJie Li Xia Li YuLan Li Bin Liao FongKay Lin ShinTed Lin ShuKui Liu YanDong Liu Yu Liu YuanYuan Liu ZhongZhi Liu Hao Ma YuCai Mao QiYuan Nie JinHua Ning Hui Pan NingChun Qi Jie Ren XiChao Ruan ChangSong Shang Vivek Sharma Ze She Lakhwinder Singh Monoj Kumar Singh TianXi Sun ChangJian Tang WeiYou Tang Yang Tian GuangFu Wang Li Wang Qing Wang Yu Chen Wang YunXiang Wang Zhen Wang Henry Tsz-King Wong ShiYong Wu YuCheng Wu HaoYang Xing Yin Xu Tao Xue YuLu Yan Nan Yi ChunXu Yu HaiJun Yu JianFeng Yue Ming Zeng BingTao Zhang Lei Zhang FengShou Zhang ZhenYu Zhang KangKang Zhao MingGang Zhao JiFang Zhou ZuYing Zhou JingJun Zhu | 2021 | Science China(Physics,Mechanics & Astronomy)2021，64，8： | 3 |
| 4 | The preparation of terephthalic acid by solvent-free oxidation of p-xylene with air over T(p-C1)PPMnC1 and Co(OAc)_2显示文摘被尝试了在 tetra (p-chlorophenylporphinato ) 上与空气由 p 二甲苯(PX ) 的没有溶剂的氧化准备对苯二酸酸(TPA ) 锰氯化物(T (打印机控制语言) PPMnCl ) 和钴醋酸盐。在 T (打印机控制语言) PPMnCl 和公司(OAc ) 之间的合作催化作用 2 在没有溶剂的条件下面被发现了。当时, TPA 产量能显著地被增加 T (打印机控制语言) PPMnCl 和公司(OAc ) 2 一起被使用。进在 2 显著地加速了的公司(OAc ) 上的反应混合的 T (打印机控制语言) PPMnCl 的增加到 TPA 的 PX 的氧化过程的决定率的步。反应上的温度的效果也被调查。 | Yang Xiao XiaoYan Zhang Qin Bo Wang Ze Tan Can Cheng Guo Wei Deng Zhi Gang Liu He Fei Zhang | 2011 | Chinese Chemical Letters2011，22，2： | 2 |
| 5 | Friction and Wear Behaviors of MoS_2/Zr Coated HSS in Sliding Wear and in Drilling Processes显示文摘MoS2 metal composite coatings have been successful used in dry turning, but its suitability for dry drilling has not been yet established. Therefore, it is necessary to study the friction and wear behaviors of MoS2/Zr coated HSS in sliding wear and in drilling processes. In the present study, MoS2/Zr composite coatings are deposited on the surface of W6Mo5Cr4V2 high speed steel(HSS). Microstructural and fundamental properties of these coatings are examined. Ball-on-disc sliding wear tests on the coated discs are carried out, and the drilling performance of the coated drills is tested. Test results show that the MoS2/Zr composite coatings exhibit decreases friction coefficient to that of the uncoated HSS in sliding wear tests. Energy dispersive X-ray(EDX) analysis on the wear surface indicates that there is a transfer layer formed on the counterpart ball during sliding wear processes, which contributes to the decreasing of the friction coefficient between the sliding couple. Drilling tests indicate that the MoS2/Zr coated drills show better cutting performance compared to the uncoated HSS drills, coating delamination and abrasive are found to be the main flank and rake wear mode of the coated drills. The proposed research founds the base of the application of MoS2 metal composite coatings on dry drilling. | DENG Jianxin YAN Pei WU Ze | 2012 | Chinese Journal of Mechanical Engineering2012，25，6： | 2 |
| 6 | Identification and Gene Mapping of Completely Dominant Earliness in Rice显示文摘The completely dominant earliness was identified in a genic male-sterile and early maturing indica line 6442S-7. F1 progenies from 6442S-7 crossed with thirteen various types of medium- or latematuring varieties, shared the same heading date as 6442S-7. The segregation of heading date in the F2 and B1F1 populations showed that the earliness of 6442S-7 is mainly controlled by two dominant major genes. The local linkage map of one dominant earliness gene harbored in 6442S-7 was constructed with F2 population and four kinds of molecular marker techniques. The results showed that the gene was located between a RFLPmarker C515 and a RAPD marker OPI 11. 557 on the terminal region of short arm of rice chromosome 3,10.9cM and 1.5 cM from C515 and OPI11. 557, respectively. The genetic distances from the target gene to twoSSR markers, RM22 and RM231, and one AFLP marker, PT671, were 3.0, 6.7 and 12.4 cM, respectively. This gene, being identified and mapped first, is designated tentatively as Ef-cd (t). As a new genetic resource of completely dominant earliness, 6442S-7 has splendid future in rice improvement. | DENG Xiao-jian, ZHOU Kai-da, LI Ren-duan, CHUN Ze LI Ping, WANG Wen-ming, ZHAI Wen-xue and ZHU Li-huang( Rice Research Institute, Sichuan Agricultural University, Wenjiang 611130 Institute of Genetics, Chinese Academy of Sciences, Beijing 100101) | 2002 | Agricultural Sciences in China2002，1，1： | 2 |
| 7 | Impact of the temperature, pressure, and particle size on tar composition from pyrolysis of three ranks of Chinese coals显示文摘 | GONG Xiao-min WANG Ze DENG Shuang | 2014 | Energy & Fuels2014，28，： | 1 |
| 8 | Unlubricated Friction and Wear Behaviors of Al2O3-TiC Ceramic Cutting Tool Materials from High Temperature Tribo-Logical Tests显示文摘 | DENG J X ZHANG H WU ZE | 2012 | Journal of Refractory Metals and Hard Materials2012，35，： | 1 |
| 9 | Performance of the Self-lubricating Textured Tools in Dry Cutting of Ti-6A1-4V显示文摘 | WU Ze DENG Jian-xin CHEN Yang | 2012 | The International Journal of Advanced Manufacturing Technology2012，62，912： | 1 |
| 10 | Atomistic dynamics of disconnection-mediated grain boundary plasticity:A case study of gold nanocrystals显示文摘Grain boundary(GB)mediated deformation is a vital contributor to the plasticity of polycrystalline materials,where the disconnection model has become a widely recognized approach to depict the GB dynamics.However,experimental understanding of the atomistic disconnection dynamics remains scarce.In this case study of gold nanocrystals,atomistic disconnection dynamics governing the shear-coupled migration of flat GBs have been systematically investigated via in situ transmission electron microscopy nanomechanical testing supported by molecular dynamics simulations.Specifically,the site-dependent nucleation,shear-driven propagation,and diverse interactions associated with distinct GB disconnections are systematically elucidated and quantitatively compared.Moreover,the disconnection-mediated GB plasticity proves to prevail among different tilt and mixed GBs in gold.Eventually,a conceptual map of disconnection-mediated GB dynamics is established,which would furnish a unified understanding of GB plasticity in metallic materials. | Qi Zhu Haofei Zhou Yingbin Chen Guang Cao Chuang Deng Ze Zhang Jiangwei Wang | 2022 | Journal of Materials Science & Technology2022，，30： | 1 |
| 11 | Periplaneta Americana Extract Ameliorates LPS-induced Acute Lung Injury Via Reducing Inflammation and Oxidative Stress显示文摘Objective Acute lung injury(ALI)is an acute clinical syndrome characterized by uncontrolled inflammation response,which causes high mortality and poor prognosis.The present study determined the protective effect and underlying mechanism of Periplaneta americana extract(PAE)against lipopolysaccharide(LPS)-induced ALI.Methods The viability of MH-S cells was measured by MTT.ALI was induced in BALB/c mice by intranasal administration of LPS(5 mg/kg),and the pathological changes,oxidative stress,myeloperoxidase activity,lactate dehydrogenase activity,inflammatory cytokine expression,edema formation,and signal pathway activation in lung tissues and bronchoalveolar lavage fluid(BALF)were examined by H&E staining,MDA,SOD and CAT assays,MPO assay,ELISA,wet/dry analysis,immunofluorescence staining and Western blotting,respectively.Results The results revealed that PAE obviously inhibited the release of proinflammatory TNF-α,IL-6 and IL-1βby suppressing the activation of MAPK/Akt/NF-κB signaling pathways in LPS-treated MH-S cells.Furthermore,PAE suppressed the neutrophil infiltration,permeability increase,pathological changes,cellular damage and death,pro-inflammatory cytokines expression,and oxidative stress upregulation,which was associated with its blockage of the MAPK/Akt/NF-κB pathway in lung tissues of ALI mice.Conclusion PAE may serve as a potential agent for ALI treatment due to its anti-inflammatory and anti-oxidative properties,which correlate to the blockage of the MAPK/NF-κB and AKT signaling pathways. | Tien-thanh NGUYEN Ze DENG Rui-yin GUO Jin-wei CHAI Rui LI Qing-ye ZENG Shi-an LAI Xin CHEN Xue-qing XU | 2023 | Current Medical Science2023，43，3： | 1 |
| 12 | Mltered expression of alternatively spliced isoforms of the mRNA NMDAR1 receptor in the visual cortex of strabismic cats显示文摘 | Yin Z Q Deng Ze Crewther G | 2001 | Molecular Vision2001，7，： | 1 |
| 13 | Friction and wear behaviour of polycrystalline diamond at temperatures up to 700℃显示文摘 | DENG Jianxin ZHANG Hui WU Ze | 2011 | International Journal of Refractory Metals & Hard Materials2011，29，5： | 1 |
| 14 | Relationship Between Helicobacter pylori Infection and Serum Interleukin‐18 in Patients with Carotid Atherosclerosis显示文摘 | Bao‐Feng Chen Xin Xu Yun Deng Shao‐Chun Ma Liang‐Qiu Tang She‐Bing Zhang Ze‐Fang Chen | 2012 | Helicobacter2012，，2： | 1 |
| 15 | High-performance phosphorene electromechanical actuators显示文摘Phosphorene,a two-dimensional material that can be exfoliated from black phosphorus,exhibits remarkable mechanical,thermal,electronic,and optical properties.In this work,we demonstrate that the unique structure of pristine phosphorene endows this material with exceptional quantum-mechanical performance by using first-principles calculations. | Bozhao Wu Hui-Xiong Deng Xiangzheng Jia Langquan Shui Enlai Gao Ze Liu | 2020 | npj Computational Materials2020，，1： | 1 |
| 16 | Friction and wear behaviors of WC/ Co cemented carbide tool materials with different WC grain sizes at tem- peratures up to 600℃显示文摘 | Deng Jianxin Zhang Hui Wu Ze | 2012 | International Journal of Refractory Metal and Hard Materials2012，31，： | 1 |
| 17 | Performance of the self-lubricating in dry cutting of Ti-6AI-4V显示文摘 | WU Ze DENG Jian-xin | 2012 | The International Journal of Advanced Manufacturing Technology2012，62，94： | 1 |
| 18 | Unlubricated friction and wear behaviors of A1203/TiC ceramic cutting tool materials from high temperature tribological tests显示文摘 | Deng Jianxin Zhang Hui Wu Ze | 2012 | International Journal of ltefrctory Metal and Hard Materials2012，35，： | 1 |
| 19 | Modification of YSZ fiber composites by Al_(2)TiO_(5) fibers for high thermal shock resistance显示文摘Yttria-stabilized zirconia(YSZ)fiber composites are highly efficient thermal insulating materials;however,the poor thermal shock resistance limits their versatile applications.In the present study,YSZ fiber was mixed directly with Al_(2)TiO_(5)fiber,which had an extremely low thermal expansion coefficient,to prepare YSZ–Al_(2)TiO_(5)(ZAT)fiber composites by compression molding and heat treatment.The minimum thermal expansion coefficient of the prepared ZAT fiber composites was measured to be 7.74×10^(−6)K^(−1),which was 26%lower than that of the YSZ fiber composites(10.42×10^(−6)K^(−1)).It was shown that the prepared ZAT fiber composites maintain the integrity after undergoing 51 thermal shock cycles between 1100℃and room temperature.Whereas,YSZ fiber composites burst immediately after only one thermal shock cycle under the same condition.In addition,the ZAT fiber composites also exhibit considerable mechanical and thermal insulating performance. | Wei LIU Yongshuai XIE Zhezhe DENG Ying PENG Jianhong DONG Ze ZHU Dehua MA Luyi ZHU Guanghui ZHANG Xinqiang WANG | 2022 | Journal of Advanced Ceramics2022，11，6： | 1 |
| 20 | Friction and wear behavior of poly- erystalline diamond at temperatures up to 700 ℃ 显示文摘 | Deng Jianxin Zhang Hui Wu Ze | 2011 | International Journal of Refractory Metal and Hard Materials2011，29，： | 1 |
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