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| 1 | Saline soil enzyme activities of four plant communities in Sangong River basin of Xinjiang,China显示文摘Soil enzyme activity plays an important role in the conversion of soil organic carbon into inorganic carbon,which is significant for the global carbon cycle.In this study,we investigated the soil enzyme activities of two ligninolytic enzymes(peroxidase and polyphenol oxidase)and five non-ligninolytic enzymes(α-1,4-glucosidase(AG);β-1,4-glucosidase(BG);N-acetyl-β-glucosaminidase(NAG);β-D-cellobiosidase(CBH);andβ-xylosidase(BXYL))in four plant communities of the Sangong River basin in Fukang,North Xinjiang,China.The four typical plant communities were dominated by Haloxylon ammodendron,Reaumuria soongonica,Salsola passerina,and Tamarix rarmosissima,respectively,with saline soils of varied alkalinity.The results showed that the soil peroxidase activity decreased seasonally.The activities of the five non-ligninolytic enzymes decreased with increasing soil depths,while those of the two ligninolytic enzymes did not show such a trend.In the four plant communities,BG had the highest activity among the five non-ligninolytic enzymes,and the activities of the two ligninolytic enzymes were higher than those of the four non-ligninolytic ones(AG,NAG,CBH,and BXYL).The community of H.ammodendron displayed the highest activity with respect to the two ligninolytic enzymes in most cases,but no significant differences were found among the four plant communities.The geometric mean of soil enzyme activities of the four plant communities was validated through an independently performed principal component analysis(PCA),which indicated that different plant communities had different soil enzyme activities.The correlation analysis showed that soil polyphenol oxidase activity was significantly positively correlated with the activities of the five non-ligninolytic enzymes.The soil pH value was positively correlated with the activities of all soil enzymes except peroxidase.Soil microbial carbon content also showed a significant positive correlation(P<0.01)with the activities of all soil enzymes except polyphenol oxidase.The results suggested that the H.ammodendron community has the highest ability to utilize soil organic carbon,and glucoside could be the most extensively utilized non-ligninolytic carbon source in the saline soil of arid areas in Xinjiang. | ZhengJun GUAN Qian LUO Xi CHEN XianWei FENG ZhiXi TANG Wei WEI YuanRun ZHENG | 2014 | Journal of Arid Land2014，6，2： | 11 |
| 2 | Downregulation of lncRNA AFAP1-AS1 by oridonin inhibits the epithelial-to-mesenchymal transition and proliferation of pancreatic cancer cells显示文摘Recent studies have demonstrated that the expression of the long non-coding RNA(lncRNA)AFAP1-AS1 in pancreatic cancer is negatively correlated with survival and prognosis.However,the effects of oridonin and lncRNA AFAP1-AS1 on the epithelial-to-mesenchymal transition(EMT)and migration of pancreatic cancer cells have not been fully elucidated.Surgery is the only potentially curative method for pancreatic cancer,but postoperative recurrence and metastasis are common.The aim of the present study was to assess the effect of oridonin and lncRNA AFAP1-AS1 silencing on pancreatic cancer cells.The pancreatic cancer cell lines BxPC-3 and PANC-1 cells were transfected with siAFAP1-AS1 and its negative control(siNC).After that,oridonin was used to treat the siAFAP1-AS1-transfected cells.The expression of lncRNA AFAP1-AS1 was downregulated in the pancreatic cancer cell lines BxPC-3 and PANC-1.The apoptosis and cell cycle progression of pancreatic cancer cells were evaluated by flow cytometry and Hoechst 33258 staining.Metastasis and invasion of BxPC-3 and PANC-1 cells were detected by transwell migration assay,real-time cell analysis,and western blot analysis.Cells were transfected with the lentiviral siAFAP1-AS1 and siNC,and tumorigenesis was evaluated in BALB/C nude mice.Immunohistochemical examination was used to verify the effects of oridonin and siAFAP1-AS1 on pancreatic cancer.The results demonstrated that the combination of oridonin and siAFAP1-AS1 inhibited pancreatic cancer cell proliferation,induced apoptosis,arrested cell cycle progression,prevented the migration,regulated EMT-related protein expression in BxPC-3 and PANC-1 cells,and inhibited pancreatic cancer cell tumorigenicity and EMT in nude mice. | Songmei Lou Jian Xu Bili Wang Shuquan Li Jun Ren Zhengjun Hu Bin Xu Feng Luo | 2019 | Acta Biochimica et Biophysica Sinica2019，51，8： | 10 |
| 3 | Heavy Oil and Oil Sands:Global Distribution and Resource Assessment显示文摘Global recoverable resources of heavy oil and oil sands have been assessed by CNPC using a geology-based assessment method combined with the traditional volumetric method, spatial interpolation method, parametric-probability method etc. The most favourable areas for exploration have been selected in accordance with a comprehensive scoring system. The results show:(1) For geological resources, CNPC estimate 991.18 billion tonnes of heavy oil and 501.26 billion tonnes of oil sands globally, of which technically recoverable resources of heavy oil and oil sands comprise 126.74 billion tonnes and 64.13 billion tonnes respectively. More than 80% of the resources occur within Tertiary and Cretaceous reservoirs distributed across 69 heavy oil basins and 32 oil sands basins. 99% of recoverable resources of heavy oil and oil sands occur within foreland basins, passive continental-margin basins and cratonic basins.(2) Since residual hydrocarbon resources remain following large-scale hydrocarbon migration and destruction, heavy oil and oil sands are characterized most commonly by late hydrocarbon accumulation, the same basin types and source-reservoir conditions as for conventional hydrocarbon resources, shallow burial depth and stratabound reservoirs.(3) Three accumulation models are recognised, depending on basin type: degradation along slope; destruction by uplift; and migration along faults.(4) In addition to mature exploration regions such as Canada and Venezuela, the Volga-Ural Basin and the Pre-Caspian Basin are less well-explored and have good potential for oil-sand discoveries, and it is predicted that the Middle East will be an important region for heavy oil development. | LIU Zuodong WANG Hongjun Graham BLACKBOURN MA Feng HE Zhengjun WEN Zhixing WANG Zhaoming YANG Zi LUAN Tiansi WU Zhenzhen | 2019 | Acta Geologica Sinica(English Edition)2019，93，1： | 9 |
| 4 | Sorption of phenanthrene to biochar modified by base显示文摘 | Zhengjun Feng Lizhong Zhu | 2018 | Frontiers of Environmental Science & Engineering2018，12，2： | 7 |
| 5 | Proteome identification of binding-partners interacting with cell polarity protein Par3 in Jurkat cells显示文摘evolutionarily 保存的房间极性蛋白质 Par3,像支架的 PDZreontaining 蛋白质,在上皮的房间极性的建立和维护起一个关键作用。尽管在在上皮的房间建立房间极性的 Par3 的角色强烈地被探索了,在造血的房间的 Par3 的功能留下逃犯。处理这个问题,我们产生了 Par3 PDZ 领域的 GST 熔化蛋白质。由把 GST-pull-down 途径与液体层析双人脚踏车团 spectrometry 相结合,我们在 Jurkat 房间(一根 T 房间线) 识别了 Par3 的 PDZ 领域的 10 潜在的新奇有约束力的蛋白质。有三蛋白质的 Par3 的相互作用—原子运输蛋白质 importin-α4 和 proteasome 使活跃之物 PA28β 和 PA28γ—被证实在 vitro 绑定试金, co-immunoprecipitation 试金和免疫荧光显微镜学使用。我们的结果有潜力揭开在血房间的房间极性蛋白质 Par3 的新奇功能。 | Ying Zhou Longhou Fang Dan Du Wenchao Zhou Xiujing Feng Jiwu Chen Zhe Zhang Zhengjun Chen | 2008 | Acta Biochimica et Biophysica Sinica2008，40，8： | 2 |
| 6 | FGF-receptor substrate 2 functions as a molecular sensor ntegrating external regulatory signals into the FGF pathway显示文摘(FRS2 ) 成纤维细胞生长因素(FGF ) 受体底层 2 是在 FGF 小径发信号的主要调停人。最近的研究在 FRS2 显示出那激活 mitogen 的蛋白质 kinase (MAPK ) phosphorylates 丝氨酸和 threonine 残余,否定地影响 FRS2 的导致 FGF 的酷氨酸 phosphorylation (PY ) 。几种刺激能导致 FRS2 的 serine/threonine phosphorylation (PS/T ) ,显示 FRS2 可能为学习在表明小径的生长因素之间的串音是有用的。这里,我们报导 FRS2 的导致 FGF 的 PY 能被 EGF 合作刺激在 PC12 房间稀释;这禁止的效果能被 U0126 完全颠倒, MEK 的一个禁止者。我们进一步在 FRS2 识别了 ERK1/2-binding 主题并且在 FGF 或 EGF 刺激之上产生了 FRS2-3KL,变异的缺乏 MAPK 绑定和磅。不同野类型(WT ) FRS2, FRS2-3KL 的导致 FGF 的 PY 不能被 EGF 合作刺激,和更展出的 FRS2-3KL-expressing PC12 房间禁止响应 FGF 处理比 FRS2-WT-expressing 房间区分潜力。这些结果建议 FRS2 的 PS/T 由 FRS2-MAPK 否定规章的循环调停了可以作为从另外的小径把否定规章的信号集成到产生 FGFR 的信号 transduction 的一个分子的开关工作。 | Wenchao Zhou Xiujing Feng Yingjie Wu Johannes Benge Zhe Zhang Zhengjun Chen | 2009 | Cell Research2009，19，10： | 2 |
| 7 | Analysis of volatile compounds of Mesona Blumes gum/rice extrudates via GC–MS and electronic nose显示文摘 | Tao Feng Haining Zhuang Ran Ye Zhengyu Jin Xueming Xu Zhengjun Xie | 2011 | Sensors & Actuators: B. Chemical2011，，1： | 1 |
| 8 | Achieving Ultra-Wideband and Elevated Temperature Electromagnetic Wave Absorption via Constructing Lightweight Porous Rigid Structure显示文摘Realizing ultra-wideband absorption,desirable attenuation capability at high temperature and mechanical requirements for real-life applications remains a great challenge for microwave absorbing materials.Herein,we have constructed a porous carbon fiber/polymethacrylimide(CP)structure for acquiring promising microwave absorption performance and withstanding both elevated temperature and high strength in a low density.Given the ability of porous structure to induce desirable impedance matching and multiple reflection,the absorption bandwidth of CP composite can reach ultra-wideband absorption of 14 GHz at room temperature and even cover the whole X-band at 473 K.Additionally,the presence of imide ring group in polymethacrylimide and hard bubble wall endows the composite with excellent heat and compressive behaviors.Besides,the lightweight of the CP composite with a density of only 110 mg cm^(−3) coupled with high compressive strength of 1.05 MPa even at 453 K also satisfies the requirements in engineering applica-tions.Compared with soft and compressible aerogel materials,we envision that the rigid porous foam absorbing material is particularly suitable for environmental extremes. | Zibao Jiao Wenjun Huyan Feng Yang Junru Yao Ruiyang Tan Ping Chen Xuewei Tao Zhengjun Yao Jintang Zhou Peijiang Liu | 2022 | Nano-Micro Letters2022，14，11： | 1 |
| 9 | Identification of Early Peach Aphid Infestation Based on Hyperspectral Imaging Technology显示文摘Peach aphid is a common pest and hard to detect.This study employs hyperspectral imaging technology to identify early damage in green cabbage caused by peach aphid.Through principal component transformation and multiple linear regression analysis,the correlation relation between spectral characteristics and infestation stage is analyzed.Then,four characteristic wavelength selection methods are compared and optimal characteristic wavelengths subset is determined to be input for modelling.One linear algorithm and two nonlinear modelling algorithms are compared.Finally,support vector machine(SVM)model based on the characteristic wavelengths selected by multi-cluster feature selection(MCFS)acquires the highest identification accuracy,which is 98.97%.These results indicate that hyperspectral imaging technology have the ability to identify early peach aphid infestation stages on green cabbages. | Yangyang Fan Wenjie Feng Zhengjun Qiu Shuai Wang | 2023 | Journal of Beijing Institute of Technology2023，32，3： | 0 |
| 10 | VIDEO MULTI-TARGET TRACKING BASED ON PROBABILISTIC GRAPHICAL MODEL显示文摘In the technique of video multi-target tracking,the common particle filter can not deal well with uncertain relations among multiple targets.To solve this problem,many researchers use data association method to reduce the multi-target uncertainty.However,the traditional data association method is difficult to track accurately when the target is occluded.To remove the occlusion in the video,combined with the theory of data association,this paper adopts the probabilistic graphical model for multi-target modeling and analysis of the targets relationship in the particle filter framework.Ex-perimental results show that the proposed algorithm can solve the occlusion problem better compared with the traditional algorithm. | Xu Feng Huang Chenrong Wu Zhengjun Xu Lizhong | 2011 | Journal of Electronics(China)2011，28，4： | 0 |
| 11 | An Approximate Algorithm of Generating Variates with Arbitrary Continuous Statistical Distributions显示文摘AnApproximateAlgorithmofGeneratingVariateswithArbitraryContinuousStatisticalDistributions￥ZhangZhengjun;YangZiqiang;ZhangChun... | Zhang Zhengjun Yang Ziqiang Zhang Chunming&Feng Yuncheng(School of Management, Beijing University of Aeronautics&Astronautics, Beijing 100083, China) (Institute of Computational Math.& Set. Eng. Computing,Academia Sinica, Beijing 100080, China) (Dept. o | 1996 | Journal of Systems Engineering and Electronics1996，7，1： | 0 |
| 12 | Thickness dependence of the crystallization and phase transition in ZrO_(2)thin films显示文摘Fluorite-structure binary oxides(e.g.,HfO_(2)and ZrO_(2))have attracted increasing interest for a broad range of applications including thermal barrier coatings,high-k dielectrics,and novel ferroelectrics.A crystalline structure plays a crucial role in determining physical and chemical properties.Structure evolution of ZrO_(2)thin films,particularly down to the nanometer scale,has not been thoroughly studied.In this work,we carried out systematic annealing analysis on the ZrO_(2)thin films.Through in-situ high-temperature X-ray diffraction(XRD)characterizations,a thickness dependence of crystallization and phase transition is observed.Irrespective of the thickness(10-300 nm),the as-prepared amorphous ZrO_(2)thin films are preferentially crystallized into a tetragonal(t)structure(high-temperature phase),which can be preserved down to room temperature(RT)upon anncaling at the corresponding crystallization temperaturc(T).When anncaling at temperaturcs higher than Tc,the transition from t to monoclinic(m;RT phase)will occur,and the quantity of the transition strongly depends on the film thickness.Our work expands the basic understanding of the phase transition in the ZrO_(2)thin films,and offers a path to the selective control over the phase structure for novel functionalities. | Yue Guan Jing Zhou Haodong Zhong Weipeng Wang Zhengjun Zhang Feng Luo Shuai Ning | 2023 | Journal of Advanced Ceramics2023，12，4： | 0 |
| 13 | Multi-functional and multi-scenario applications for MXene aerogels with synergistically enhanced asymmetric modules显示文摘The development of multifunctional materials and synergistic applications of various functions are important conditions for integrated and miniaturized equipment.Here,we developed asymmetric MXene/aramid nanofibers/polyimides(AMAP)aerogels with different modules using an integrated molding process.Cleverly asymmetric modules(layered MXene/aramid nanofibers section and porous MXene/aramid nanofibers/polyimides section)interactions are beneficial for enhanced performances,resulting in low reflection electromagnetic interference(EMI)shielding(specific shielding effectiveness of 2483(dB·cm^(3))/g and a low R-value of 0.0138),high-efficiency infrared radiation(IR)stealth(ultra-low thermal conductivity of 0.045 W/(m·K)and IR emissivity of 0.32 at 3–5μm and 0.28 at 8–14μm),and excellent thermal management performances of insulated Joule heating.Furthermore,these multifunctional AMAP aerogels are suitable for various application scenarios such as personal and building protection against electromagnetic pollution and cold,as well as military equipment protection against infrared detection and EMI. | Junru Yao Jintang Zhou Feng Yang Guiyu Peng Yijie Liu Zhengjun Yao Fan Wu Haibo Zeng | 2024 | Nano Research2024，17，4： | 0 |
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