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Search Results: 1 - 10 of 38068 matches for " Quanhong LIN "
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Study on the Authenticity of Identification Methods in White Spirit by Infrared Spectrometer  [PDF]
Dekui Bai, Ni Wang, Quanhong Ying, Jinhui Lin
Engineering (ENG) , 2013, DOI: 10.4236/eng.2013.510B061

This experiment studies on the used infrared spectroscopy to establish technology methods for liquor identification methods, as well as offers the science data for establishment of the fingerprint in white spirit. The results have shown that using near-infrared spectroscopy analysis of liquor has the obvious features such as strong specificity, good reproducibility, simple operation, and finally confirmed that it is an authentic and ideal method for identification in white spirit.

Possibility of Inducing Compressive Residual Stresses in Welded Joints of SS400 Steels

Quanhong LIN,Jing CHEN,Huaining CHEN,

材料科学技术学报 , 2001,
Abstract: Since the welded constructions produce easily stress corrosion cracking (SCC) or fatigue disruption in corrosive medium or under ripple load, two methods inducing compressive stress on structural surfaces by anti-welding-heating treatment (AWHT) and explosion treatment (ET) are presented. The results show that they are good ways to resisting SCC on the welded SS400 steel or other components.
Research on the disappearance causes of the Tenghualuo Site in Lianyungang, Jiangsu Province, China
Lan Li,Cheng Zhu,FengQing Jiang,QuanHong Zhao,IiuGeng Lin
Chinese Science Bulletin , 2008, DOI: 10.1007/s11434-008-5016-5
Abstract: With brilliant civilization during the transitional period from a original clan society to a state society in prehistory, the Neolithic Tenghualuo Site in Lianyungang was discovered by archaeological survey in 1989, which was titled as ‘one of the nation’s ten great archeological discoveries in 2000’. However, the transgression and the anthropogenic environment deterioration have ever been employed to explain the abandonment of the site. Based on a dynasty framework established by the 14C dating, and using the experimental methods such as micro-paleontology identification in foraminifera and charophytes, the content test of Rb and Sr, susceptibility analysis as well as granularity and sedimentary facies analysis, some researches on the sediments from the two exploration layers at Tenghualuo Site were conducted, and the following new findings have been gained: Firstly, foraminifera which are relevant to the marine environment were not found in the sediment layer, however, 25 charales, which usually live in the freshwater environment, in 07LTT1 exploration samples were found. Among them, 3 charales were found in the samples from the forth sediment layer below the late Longshan Cultural Layer and 22 charates were from the second sediment layer above the late Longshan Cultural layer. Furthermore, 5 plant seeds and 41 fungal spores, together with many carbonation holes, plant seed shells, as well as their roots and stems were also found in the second sediment layer above the late Longshan Cultural layer. Secondly, the cumulative probability curves of the sediments’ granularity in both the last and its overlying culture intermittent layers have characteristics of three-phase river sediment curve, and the ratios between Rb and Sr are both quite high in samples from two layers sedimented during the disappearing time of the site. All above-mentioned evidences indicate that disappearance of the Tenghualuo Site was not related to the transgression. The late Longshan Culture of the site could be completely abandoned after a relatively long-term inland water flood.
Surface Nanocrystallization of Commercial Pure Titanium Induced by SMAT and Its Properties
Shulan ZHANG,Huaining CHEN,Quanhong LIN,
Shulan ZHANG
,Huaining CHEN and Quanhong LINInstitute of Metai Research,Chinese Academy of Sciences,Shenyang,China

材料科学技术学报 , 2004,
Abstract: In this paper the preparation technique of surface nanocrystallization in commercial pure titanium was carried out by sudace mechanical attrition treatment (SMAT). The mean grain size was calculated by using X-ray diffraction (XRD)and transmission electron microscope (TEM), and the results showed that the mean grain size of the surface was refined to nm level after SMAT treatment. Nanocrystallized surface layers were formed after treated for 5, 15, 30 and60 min. Microhardness experimental results implied the microhardness obviously increased on the surface layer and it also showed the variation of microhardness at the cross section. Corrosion test results showed the corrosion resistance of the surfaces in the original commercial pure titanium treated by SMAT was not improved in HCl solution. The corrosion micrographs were observed by scanning electron microscope (SEM).
Relief of Residual Stresses in 800 MPa Grade High Strength Steel Weldments by Explosion Treatment and its Effect on Mechanical Properties
Changzhong WU,Huaining CHEN,Jing CHEN,Quanhong LIN,Jianjun GUAN,

材料科学技术学报 , 2006,
Abstract: The explosion treatment technique has been used in the relief of residual stresses in 800 MPa grade high strength steel manual welded joints. The residual stresses on surface and through thickness of the weldment were measured for both as-welded and explosion-treated sample, the mechanical properties of welded joints under different conditions were also tested. The effect of explosion treatment on the fracture toughness of materials with a residual defect was investigated by crack opening displacement (COD) test. The results show that explosion treatment can reduce not only the surface residual stress but also the residual stress through thickness in the welded joints. The effect of explosion treatment on the mechanical properties and a residual defect in welded joint were inconspicuous.
Cenozoic stratigraphy of Taiwan: Window into rifting, stratigraphy and paleoceanography of South China Sea
Chi-Yue Huang,Yi Yen,QuanHong Zhao,Chiou-Ting Lin
Chinese Science Bulletin , 2012, DOI: 10.1007/s11434-012-5349-y
Abstract: Shallow marine sequences of the northern South China Sea (SCS) are uplifted and exposed by plate convergence in the Taiwan mountain belt. These deposits provide detailed geological information about the rifting event, stratigraphy, sedimentology, paleoclimate and paleoceanography of the shallow SCS to compare with what are recorded in the ODP 1148 deep-sea core. Seismic surveys and marine micropalentological studies show that Eocene sequences in the offshore Taiwan Strait and onland Taiwan mountain belt are all deposited in rifting basins and are covered unconformably by the Late Oligocene-Neogene post-rifting strata. Between syn-rifting and post-rifting sequences, there is a regional break-up unconformity throughout the island. Early Oligocene and Late Eocene strata are missing along the break-up unconformity equivalent to the T7 unconformity in the Pearl River Mouth Basin off south China. This may suggest that the SCS oceanic crust could have initiated between 33 and 39 Ma. Neither obvious stratigraphic gap nor slumping features are found in the Oligocene-Miocene transition interval of Taiwan. This observation highly contrasts with what has been documented from the ODP 1148 deep-sea core. This suggests that the stratigraphic gap and slumping features could only be recorded in the SCS deep sea region, but not in the shallow shelf near Taiwan. Compared to the Middle Miocene paleoceanographic re-organization events in the SCS deep sea, the geological history of the Taiwan shallow sequence shows changes of in sedimentation and faunal composition. Due to the Antarctic glacial expansion at ~14 Ma, Middle to late Miocene strata of the Western Foothills show progressive regression sedimentations associated with a decrease of benthic foraminiferal abundance and a sharp faunal turnover event. Many Early-Middle Miocene endemic benthic foraminifers were extinct in 14-13 Ma and new benthic foraminifers of the Kuroshio Current fauna appeared from 10.2 Ma, comparable with new occurrence of Modern benthic foraminifers at 9 Ma in the Java Sea area. This reveals that the Western Boundary Kuroshio Current in the North Pacific could initiate from 10-9 Ma due to closures of the Indo-Pacific seaways by convergent tectonics between the Australian Continent and the Indonesian Arc in 12-8 Ma. Subduction of the SCS oceanic lithosphere since the Middle Miocene resulted in formation of the Hengchun Ridge accretionary prism and the North Luzon Arc. Occurrence of these two bathymetric highs ( 2400 m) since the Middle Miocene and closures of the inter-arc passages in the North Luzon arc in the last 3.5 Ma would control the water exchanges between the West Pacific and the deep SCS. Accordingly, the tectonic evolution in the Central Range-Hengchun Peninsula accretionary prism and the arc-forearc Coastal Range not only control directly the route for water exchanges between the West Pacific and the SCS, but also indirectly shows a great influence on the geochemistry of deep SCS
Evidence for marine transgression between 7500–5400BC at the Luotuodun Site in Yixing, Jiangsu Province

LI Lan,ZHU Cheng,LIN Liugen,ZHAO Quanhong,SHI Gongyue,ZHENG Chaogui,FAN Chao,

地理学报 , 2009,
Abstract: Based on archaeological excavations, 217 samples were collected from the Luotuodun Site. Of them 63 samples from the section plane of the site layer were used for identification analysis of foraminifera, plant debris and seed fossils, and four samples were used for 14C dating and relevant analysis. Through many kinds of experiments, we have drawn some conclusions. Firstly, benthic foraminifera, such as Ammonia compressiuscula and Ammonia cff. sobrina, are found in the 10th layer, indicating that between 7500 and 5400 BC, i.e. before the emergence of the Majiabang Culture, Luotuodun Site and its nearby regions had ever experienced a marine transgression event. Secondly, we have found 450 plant fossils in this site, such as Polygonum sp., Scripus sp., Najas sp., Physalis sp., which indicated lacustrine or swamp environment.
The Multi-Targeted Kinase Inhibitor Sunitinib Induces Apoptosis in Colon Cancer Cells via PUMA
Jing Sun, Quanhong Sun, Matthew F. Brown, Crissy Dudgeon, Julie Chandler, Xiang Xu, Yongqian Shu, Lin Zhang, Jian Yu
PLOS ONE , 2012, DOI: 10.1371/journal.pone.0043158
Abstract: Constitutive activation of pro-survival kinases has become a promising target of small molecules with an increasing interest in developing multi-targeted agents. The mechanisms underlying the responsiveness to most agents targeting cancer specific survival pathways are still poorly understood but critical for their clinical application. In this study, we found that sunitinib, a small molecule inhibitor of multiple tyrosine kinases including VEGFRs and PDGFRs induces apoptosis and inhibits cell growth in colon cancer cells in cell culture and xenograft models via the BH3-only protein PUMA. Sunitinib treatment induced PUMA transcription via the AKT/FoxO3a axis. PUMA, BH3 mimetics, or 5-Flurourical sensitized colon cancer cells to sunitinib-induced apoptosis. Furthermore, PUMA was induced by sunitinib treatment in xenograft tumors, and deficiency in PUMA significantly suppressed the anti-tumor effects of sunitinib. Our study suggests that PUMA-mediated apoptosis is important for the therapeutic responses to sunitinib, and activation of the mitochondrial pathway by BH3 mimetics or PUMA manipulation may be useful for improving the antitumor activity of sunitinib. Modulation of PUMA and selective Bcl-2 family members might be potential biomarkers for predicting sunitinib responses.
Transgression Records between 7500-5400BC on the Stratum of the Luotuodun Site in Yixing, Jiangsu Province

LI Lan,ZHU Cheng,LIN Liugen,ZHAO Quanhong,SHI Gongyue,ZHU Hanbing,

地理学报 , 2008,
Abstract: Based on archaeological excavations, 217 samples were collected, of which 63 were used for identification analysis of foraminifera, plant debris and seed fossils. The authors used four samples for 14C dating and correlation analysis. Through experiments, some conclusions can be drawn as follows. First, Bentic foraminifera was found in the 10th layer, such as Ammonia compressiuscula and Ammonia cff. sobrina, which shows that between 7500-5400 BC, before the appearance of the Majiabang culture, Luotuodun Site and its neighbouring regions had experienced transgression events. Second, we found 450 plant fossils at this site, such as Polygonum sp., Scirpus sp., Najas sp., Physalis sp., which lived in lakes, swamps and other aquatic environments.

Tu Quanhong,

生态学报 , 1990,
Abstract: In this paper, the theor of gre s stem was applied to set up a grey equation for the population size of the hibernating larvae of Dendrolimus tabulaeformis Tsai et Liu, in which the average number of the caterpillar climbing up or down trees in the previous year was used to project that in the next year.The aveiage number of the caterpiller climbing down trees in the previous year alone can also be used to predict the average number of the caterpillar that may climb up trees in the next year. The model Set up has been tested to have a forecasting accuracy of higher than 90%.
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