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| 1 | Holocene aeolian stratigraphic sequences in the eastern portion of the desert belt(sand seas and sandy lands) in northern China and their palaeoenvironmental implications显示文摘This paper presents the environmental history and its responses to palaeoclimatic changes since the start of the Holocene in the eastern portion of the desert belt(sand seas and sandy lands) in northern China by comparing the aeolian sandpalaeosol sequences and their palaeoclimatic proxies. The optically stimulated luminescence(OSL) ages of the aeolian sandpalaeosol sedimentary sequences and a series of palaeoenvironmental proxies show that:(1) The large-scale dune landscape currently in the Kubuqi Sand Sea was formed during the Holocene in general;and the palaeosol was generally developed during the period of 4–2 ka, indicating conditions favorable for vegetation growth, soil development, and organic carbon accumulation due to increased precipitation or effective moisture and weakened aeolian activities;the large-scale expansion of dunes in the recent 2 ka is closely linked to human activities. The variable discharge of the Yellow River with diversions for irrigation may have resulted in a more consistent supply of aeolian particles for dune field expansion.(2) The dune landscape of the Hunshandake Sandy Land was likely formed around 12 ka, and before this, the western part of the Hunshandake Sandy Land would have been covered by a single large lake;it was obviously wetter than today in the sandy land during the period of 9.6–3 ka and the palaeosols were developed at the same time. But the aeolian activities have not been completely dormant in this long-lasting wetter epoch;because the Holocene wetter period was likely time-transgressive across the region.(3) The palaeosol of the Hulunbuir Sandy Land began to develop as early as 14.5 ka, probably continuing until the last 2 ka. The palaeosol development of various dune fields in the eastern portion of the desert belt(sand seas and sandy lands) in northern China is spatially heterogeneous, and even the palaeosol development time in different locations within each sandy land is inconsistent. During the middle Holocene(especially the 7.5–3.5 ka), all the sandy lands were stabilized in general and the intensity of aeolian activities was significantly weakened. The number of palaeoenvironmental records in the eastern portion of the desert belt(sand seas and sandy lands) in northern China has increased rapidly in the past decade, but the amount of published data still does not match the vast extent of the dune fields. It does require much more in-depth palaeoenvironmental studies for a full understanding of the relationship between aeolian activities and climate change in northern China. | Xiaoping YANG Peng LIANG Deguo ZHANG Hongwei LI Patrick RIOUAL Xulong WANG Bing XU Zhibang MA Qianqian LIU Xiaozong REN Fangen HU Yuxin HE Gang RAO Ninghua CHEN | 2019 | Science China Earth Sciences2019，62，8： | 10 |
| 2 | Approach to General Data Model of GIS Symbol Library and Symbol Library Data Exchange XML Schema显示文摘标志描绘是 GIS 的重要功能。在不同 GIS 平台分享符号的信息为 GIS 应用程序和用户是必要的。这篇论文讨论必要性,可能性和在不同 GIS 平台分享一个标志图书馆的答案技术。线路地图如下被设计:首先,为标志图书馆当模特儿建立一个一般数据,然后格式化设计标准交换,并且最后格式化号召 GIS 制造商为标准交换为他们的标志图书馆提供交换工具。这篇论文分析 GIS 符号的图书馆的一般特征,给一个标志图书馆模型和 XML 的一篇草稿标志图书馆交换格式的纲要。 | LI Qingyuan SU Deguo LI Hongsheng LIU Haochen SUN Lijian | 2009 | Geo-Spatial Information Science2009，12，4： | 4 |
| 3 | Frictional behaviors of rough soft contact on wet and dry pipeline surfaces:With application to deepwater pipelaying显示文摘Elastic rubbers are widely used in nature and engineering.In order to better understand soft rough contact under dry and wet conditions during deepwater pipelaying process,various polyurethane(PU)discs both in PU-pipe and PU-steel sliding combinations have been investigated by using self-developed tribometer.The tribological test results show that the friction coefficient can be clearly seen:PU90 | TAN GuiBin WANG DeGuo LIU ShuHai WANG Hao ZHANG SiWei | 2013 | Science China(Technological Sciences)2013，56，12： | 4 |
| 4 | Preparation and nanotribological behavior of PAH/graphite oxide molecular deposition film显示文摘Polyallylamine hydrochloride/graphite oxides ultra thin film (coded as PAH/GO ultra thin film) was prepared by molecular deposition (MD) in laboratory. The resulting PAH/GO ultra thin film was heated to convert the electrostatic force towards covalent bond so as to increase the bonding strength of the film. The structure and nanotribological properties of the film were analyzed by means of atomic force microscopy and ultraviolet-visible spectroscopy. It was found that the PAH/GO ultra thin film had a much smaller friction force than the glass substrate and the friction force was dependent on the hardness and appearance of the glass substrate. | FENG Dapeng WANG Deguo ZHANG Siwei | 2004 | Science China(Technological Sciences)2004，47，4： | 4 |
| 5 | Linear polymer aqueous solutions in soft lubrication:From boundary to mixed lubrication显示文摘In order to better understand linear polymer aqueous solutions in soft lubrication from boundary to mixed lubrication,poly(ethylene glycol) and sodium hyaluronateare used as model polymers were investigated by using UMT-2 tribometer with the ball-on-disk mode. The relationship between the master Stribeck curves of the polymer aqueous solutions and the influence factors were investigated. Experimental results indicated that soft lubrication is determined by lubricant rheological properties and surface-lubricant interactions, e.g., wetting behavior of polymer aqueous solution on tribological surfaces. | LIU ShuHai TAN GuiBin WANG DeGuo | 2013 | Science China(Technological Sciences)2013，56，7： | 3 |
| 6 | Shear of molecular deposition films on glass substrates determined by tribometer显示文摘The ultrathin polyelectrolyte molecular deposition films and polyelectrolyte composite nanoparticles molecular deposition films were prepared using layer-by-layer molecular deposition method and in situ growth method.A micro-tribometer has been developed to measure the shear response of those ultrathin molecular deposition films.By using a smooth steel sphere in a ball-on-flat configuration,the shear force was determined for molecular deposition films on glass substrate for different layers.The results indicate that the shear behaviors of molecular deposition film were mainly determined with the contact area and film layers.Moreover,the composite molecular deposition film with nanoparticles has better shear behaviors than the polyelectrolyte molecular deposition film.The shear force of polyelectrolyte molecular deposition film is more dependent on the speed than that of composite nanoparticle molecular deposition film. | GUO YanBao WANG DeGuo LIU ShuHai ZHANG SiWei | 2011 | Science China(Technological Sciences)2011，54，4： | 2 |
| 7 | Effect of glucose on the soil bacterial diversity and function in the rhizosphere of Cerasus sachalinensis显示文摘Most cherry orchards in China have low organic carbon content,though carbon is very important for plant growth.The changes in soil carbon and bacterial diversity were determined after different amounts of 12C-glucose were added to the rhizosphere of Cerasus sachalinensis.Soil bacteria diversity was measured using high throughput sequencing,and bacteria containing 13C-glucose were identified using DNA-SIP methods.The results demonstrated that soil microbial biomass carbon(MBC)content and the soil respiratory rate were increased at 3 and 7 days after adding glucose.The soil organic carbon(SOC)content was decreased on the 7th day in the treatment where the added glucose-C was equivalent to the MBC content.SOC content was decreased on the 15th day after adding glucose-C equivalent to five times that of the soil MBC.Compared to the controls,the relative abundance of taxa at the phylum level displayed no significant change in the treatments with glucose-C added as 10%and equal amount of soil MBC 3–30 days after treatment.However,the relative abundance of Proteobacteria increased significantly in the treatment with the addition of glucose-C equivalent to five times of soil MBC.The main changes were observed in the bacteria in several genera including A4,Flavisolibacter,Aquicella,and Candidatus Solibacter.DNA-SIP results indicated that the relative abundance of the Proteobacteria and Pseudomonas was the highest;these were the primary bacteria phylum and genus,respectively,from day 3 to day 15.In conclusion,the changing pattern demonstrated that with the addition of more glucose,the range of the bacterial communities changed more.Proteobacteria and Pseudomonas may be the bacteria promoting priming effect. | Wenjie Zhou Xu Qin Deguo Lyu Sijun Qin | 2021 | Horticultural Plant Journal2021，7，4： | 2 |
| 8 | Nanotribological behaviors of in situ nanoparticles doped molecular deposition films显示文摘The molecular deposition films of poly (diallyl dimethylammonium chloride) (PDDA) and poly (acrylicacid) (PAA) with Cu2+ on quartz and glass substrates were prepared in laboratory first, then different bilayers films were dipped into fresh Na2S aqueous solution. As a result, CuS nanoparticles were fabricated in multilayer molecular deposition films in situ. The structure and nanotribological properties of the composite films were analyzed by ultraviolet-visible (UV-visible) spectroscopy, XPS and atomic force microscope (AFM). It was found that the CuS nanoparticles were homogeneously distributed throughout the whole film. And these films had a much smaller friction force than their substrates and higher antiwear life than pristine PDDA/PAA molecular deposition films. The fluctuation and variation trend of the topography, hardness, and friction with the AFM indentation length were also investigated. | GUO YanBao WANG DeGuo ZHANG SiWei | 2009 | Chinese Science Bulletin2009，54，24： | 1 |
| 9 | Development and evaluation of a loop-mediated isothermal amplification method for detecting Escherichia coli O157 in raw milk显示文摘 | WANG Deguo LIU Fei HUO Guicheng | 2009 | Journal of Rapid Methods and Automation in Microbiology2009，17，： | 1 |
| 10 | Reduced IGF-1 Signaling Delays Age-Associated Proteotoxicity in Mice显示文摘 | Ehud Cohen Johan F. Paulsson Pablo Blinder Tal Burstyn-Cohen Deguo Du Gabriela Estepa Anthony Adame Hang M. Pham Martin Holzenberger Jeffery W. Kelly Eliezer Masliah Andrew Dillin | 2009 | Cell2009，，6： | 1 |
| 11 | Advances in studies of the tribological behavior of molecular deposition films显示文摘An overview of the advances in studies on tribology of molecular deposition(MD)films is presented here to summarize the studies of nanofrictional properties,adhesion,wear and mechanical behavior,as well as the molecular dynamics simulation of nanotribological properties of the film in the last decade.Some key research topics which need to be investigate further are addressed. | Xiao Yuqi Zhang Siwei Wang Deguo Gao Manglai | 2008 | Petroleum Science2008，5，4： | 1 |
| 12 | Which is the best alternative for displaced femoral neck fractures in the elderly:A meta-analysis显示文摘 | Gao Hongwei Liu Zhonghao Xing Deguo | 2012 | Clinical orthopaedics and related research2012，470，6： | 1 |
| 13 | 显示文摘 | Zhang S W He Renyang Wang Deguo | 2001 | Journal of Materials Science2001，，36： | 1 |
| 14 | Nano-scratch study of molecular deposition films on silicon wafers using nano-indentation显示文摘 | Wang Deguo Zhang Siwei Gao Manglai | 2003 | Tribotest2003，9，3： | 1 |
| 15 | Tribological behaviors of composite molecular deposition films显示文摘 | Si-wei Zhang Dapeng Feng Deguo Wang | 2005 | Tribology International2005，38，1112： | 1 |
| 16 | An approach to intra-pulse modulation recognition based on the ambiguity function显示文摘 | Zeng Deguo Xiong Hui Wang Jun | 2010 | Circuits System and Signal Processing2010，29，6： | 1 |
| 17 | Improvement of Fuzzy Comprehensive Evaluation Method显示文摘 | Xiong Deguo Xian Xuefu | 2003 | Journal of Chongqing University2003，26，6： | 1 |
| 18 | Integration of root architecture,root nitrogen metabolism,and photosynthesis of‘Hanfu’apple trees under the cross-talk between glucose and IAA显示文摘Sugars and auxin have important effects on almost all phases of plant life cycle,which are so fundamental to plants and regulate similar processes.However,little is known about the effect of cross-talk between glucose and indole-3-acetic acid(IAA)on growth and development of apple trees.To examine the potential roles of glucose and IAA in root architecture,root nitrogen(N)metabolism and photosynthetic capacity in‘Hanfu’(Malus domestica),a total of five treatments was established:single application of glucose,IAA,and auxin polar transport inhibitor(2,3,5-triiodobenzoic acid,TIBA),combined application of glucose with TIBA and that of glucose with IAA.The combined application of glucose with IAA improved root topology system and endogenous IAA content by altering the mRNA levels of several genes involved in root growth,auxin transport and biosynthesis.Moreover,the increased N metabolism enzyme activities and levels of genes expression related to N in roots may suggest higher rates of transformation of nitrate(NO3--N)into amino acids application of glucose and IAA.Contrarily,single application of TIBA decreased the expression levels of auxin transport gene,hindered root growth and decreased endogenous IAA content.Glucose combined with TIBA application effectively attenuated TIBA-induced reductions in root topology structure,photosynthesis and N metabolism activity,and mRNA expression levels involved in auxin biosynthesis and transport.Taken together,glucose application probably changes the expression level of auxin synthesis and transport genes,and induce the allocation of endogenous IAA in root,and thus improves root architecture and N metabolism of root in soil with deficit carbon. | Bianbin Qi Xin Zhang Zhiquan Mao Sijun Qin Deguo Lv | 2023 | Horticultural Plant Journal2023，9，4： | 1 |
| 19 | Research and practice of rotating technique for liner hanger显示文摘 | MA Lanrong WANG Deguo GUO Zhaohui | 2012 | The Open Petroleum Engineering Journal2012，5，： | 1 |
| 20 | Influence of Rare-earth Elements on Mechanical Properties of Palladium显示文摘The influence of 0.1-0.6 at.-%RE additions (RE= La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Er, Yb) on themechanical properties of Pd was studied. All above RE additions increased not only the strengthproperties at ambient temperature but also the tensile strength, creep rupture time and activation en-ergy at high temperatures, simultaneously increased the elongation of Pd. In the range of dilute con-centration, the strength properties of Pd-RE alloy enhanced linearly with RE concentration. Whenthe strength properties of Pd-RE alloys were normalized at 0.1 at.-%RE, it was found that light REelements had stronger effect on the properties of Pd than heavy RE, whereas Eu, Yb, Ce had anoma-lous effect. In all Pd-RF alloys, Pd-Eu alloy had the highest strength properties, successively Pd-Yband Pd-Ce alloy. The effect mechanisms of RE in alloy, such as purifying impurities, increasingrecrystallization temperature, refining grain size. expanding crystal lattice, increasing dislocation den-sity and decreasing stacking fault energy, forming stable RE oxidation by internal oxidation, and soon, were observed. They were strengthening sensitive factors. The influence of the factors onstrength properties and elongation of Pd was discussed. | Yuantao NING+ Fei WEN Huaizhi ZHOU Deguo DENG, Institute of Precious Metals Kunming, 650221, China | 1993 | Journal of Materials Science & Technology1993，9，2： | 1 |
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