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36篇 您的检索式:作者名="QingLin GUO"
    题名 作者 年代 出处 被引量
1Preparation and luminescence characteristics of Sr_3SiO_5:Eu^(2+) phosphor for white LED显示文摘The Sr3SiO5:Eu2+ phosphor was synthesized by high temperature solid-state reaction. The emission spectrum of Sr3SiO5:Eu2+ shows two bands centered at 487 and 575 nm, which well agree with the theoretic values of emission spectrum. The excitation spectrum for 575 nm emission center has several excitation bands at 365, 418, 458 and 473 nm. And the results show that the emission spectrum of Sr3SiO5:Eu2+ is influenced by the Eu2+ concentration. The relative emission spectra of the white-emitting InGaN-based YAG:Ce3+ LED and Sr3SiO5:Eu2+ LED were investigated. The results show that the color development of InGaN-based Sr3SiO5:Eu2+ is better than that of InGaN-based YAG:Ce3+, and the CIE chromaticity of InGaN-based Sr3SiO5:Eu2+ is (x=0.348, y=0.326).LI PanLai YANG ZhiPing WANG ZhiJun GUO QingLin LI Xu 2008Chinese Science Bulletin2008,53,7:16
2Structure of the receptor-activated human TRPC6 and TRPC3 ion channels显示文摘TRPC6 和 TRPC3 是属于正规短暂受体潜力(TRPC ) 的家庭的激活受体的 nonselective 阳离子隧道隧道。他们被 diacylglycerol 激活,一个类脂化合物秒送信人。TRPC6 和 TRPC3 涉及许多生理的过程并且在人的基因疾病含有。这里我们在场在有最新识别的高亲密关系的禁止者 BTDM 的建筑群的人的 TRPC6 homotetramer 的结构由单个粒子的 cryo 电子显微镜学解决了到 3.8?分辨率。我们也在 4.4 点介绍人的 TRPC3 的结构吗?分辨率。这些结构显示出塑造钟的 cytosolic 层在保持 transmembrane 层的二层的体系结构。包括 N 终端 ankyrin 重复和 C 终端卷卷, cytosolic 领域的广泛的内部子单元的相互作用贡献 tetramer 集会。高亲密关系的禁止者 BTDM 在 S5-S6 毛孔领域和电压之间挤像传感器的领域禁止隧道开。我们的结构揭开 TRPC 隧道的分子的建筑学并且为理解这些隧道的机制提供一个结构的基础。Qinglin Tang Wenjun Guo Li Zheng Jing-Xiang Wu Meng Liu Xindi Zhou Xiaolin Zhang Lei Chen 2018Cell Research2018,28,7:10
3Water in the Mogao Grottoes,China:where it comes from and how it is driven显示文摘The Dunhuang Mogao Grottoes in China was designated as a world heritage site by UNESCO in 1987 and is famous for its cultural relics. Water is the most active factor that harms the relics in the caves as it damages the grotto murals and painted sculptures. Thus, determining the water sources and driving forces of water movement is a key issue for protecting these cultural relics. These issues have troubled relics protectors for a long time. In this study, the authors chose a representative cave in the Mogao Grottoes and, by completely sealing the cave to make a closed system, measured the water vapor from the surrounding rock. This was accomplished by installing a condensation–dehumidification temperature–humidity control system for the collection of water vapor. The results show that there is continuous evaporation from the deep surrounding rock into the cave. The daily evaporation capacity is determined to be 1.02 g/(d?m2). The water sources and driving forces of water movement were further analyzed according to the character of the water evaporation and by monitoring the temperature and humidity of the surrounding rock. It was found that the water vapor in the cave derives from phreatic water. Moreover, the yearly fluctuation of temperature in the surrounding rock and geothermal forces are the basic powers responsible for driving phreatic evaporation. Under the action of the yearly temperature fluctuations, decomposition and combination of bound water acts as a 'pump' that drives phreatic water migration and evaporation. When the temperature rises, bound water decomposes and evaporates; and when it falls, the rock absorbs moisture. This causes the phreatic water to move from deep regions to shallow ones. Determining the source and dynamic foundation of the water provides a firm scientific basis for protecting the valuable cultural relics in the caves.HongShou LI WanFu WANG HongTao ZHAN Fei QIU QingLin GUO GuoBin ZHANG 2015Journal of Arid Land2015,7,1:10
4Effects of Double Harvesting on Heavy Metal Uptake by Six Forage Species and the Potential for Phytoextraction in Field显示文摘The pollution of soils by heavy metals has dramatically increased in recent decades. Phytoextraction is a technology that extracts elements from polluted soils using hyperaccumulator plants. The selection of appropriate plant materials is an important factor for successful phytoextraction in field. A field study was conducted to compare the efficiency of six high-biomass forage species in their phytoextraction of heavy metals(Cd, Pb, and Zn) from contaminated soil under two harvesting strategies(double harvesting or single harvesting). Among the tested plants, amaranth accumulated the greatest amounts of Cd and Zn, whereas Rumex K^(-1) had the highest amount of Pb in the shoot under both double and single harvesting. Furthermore, double harvesting significantly increased the shoot biomass of amaranth, sweet sorghum and sudangrass and resulted in higher heavy metal contents in the shoot. Under double harvesting, the total amounts of extracted Cd, Pb and Zn(i.e., in the first plus second crops) for amaranth were 945, 2 650 and 12 400 g ha^(-1), respectively, the highest recorded among the six plant species. The present results indicate that amaranth has great potential for the phytoextraction of Cd from contaminated soils. In addition, the double harvesting method is likely to increase phytoextraction efficiency in practice.LI Ningyu GUO Bin LI Hua FU Qinglin FENG Renwei DING Yongzhen 2016Pedosphere2016,26,5:8
5Conservation of Jiaohe ancient earthen site in China显示文摘Earthen sites,which are mainly made of earth,are cultural heritages with historical,artistic and scientific values.Many extremely valuable earthen sites have been preserved in the arid areas in China.The earthen site of Jiaohe Ancient City is one of the earliest National Protected Important Cultural Heritage Sites.The Jiaohe Ancient City site exhibits all kinds of deteriorations,which can be found in the earthen sites in arid environments in China.Through a case study of the Jiaohe ancient earthen site,we present in this paper the comprehensive conservation technologies,including the mud bricklaying and reparation,wooden rod anchorage,crack grouting,surface potassium silicate(PS) penetration consolidation,and suspended steel beam ceiling,etc.Results of this case study showed that better conservation effects could be achieved by selecting proper PS penetration and crack grouting processes based on the deterioration characteristics of the earthen sites.The technology of mud bricklaying and reparation was also an effective method for preventing the earthen body from collapsing.Compared with traditional conservation technologies,the suspended steel beam ceiling technology could effectively reduce the negative impacts to the original state of the earthen site.As for unstable cliffs,a new method using composite anchor rod of bamboo and steel with massive loose earth was applied.Deformation monitoring and temporary supports were critical and indispensable measures for the safe of site conservation projects.Through years of monitoring and practical operation at the Jiaohe ancient earthen site,deterioration at the site has been effectively controlled.Zuixiong Li Xudong Wang Manli Sun Wenwu Chen Qinglin Guo Huyuan Zhang 2011Journal of Rock Mechanics and Geotechnical Engineering2011,3,3:6
6Effect of direct current pulse stimulating acupoints of JiaJi (T10-L3) and Ciliao (BL 32) with Han's Acupoint Nerve Stimulator on labour pain in women: a randomized controlled clinical study显示文摘OBJECTIVE: To assess the clinical effect and safety of direct current(DC) pulse produced by Han's Acupoint Nerve Stimulator in reduction(HANS) of labor pain.METHODS: Totally 120 participants were enrolled in this clinical trial, and were randomly divided into4 groups including: HANS group, patient controlled intravenous analgesia(PCIA) group, patient-controlled epidural analgesia(PCEA) group and control group. The HANS group was treated by stimulating the acupoints of Jia Ji(T10-L3) and Ciliao(BL 32)with DC pulse of 100 Hz and 15-30 m A produced by a portable battery-powered Han's Acupoint Nerve Stimulator for 30 min. The PCIA group was intravenously infused Ondansetron(8 mg) for 5 min,then tramadol injection(1.5 mg/kg) was slowly dripped by using Baxter APⅡ electronic pump with50 m L tramadol(0.70%) + ondansetron(8 mg),background infusion 2 m L/h, PCA dose of 2 m L,lockout interval of 10 min. In PCEA group, women received intrathecal injection ropivacaine(3 mg) in L2-3, and epidural catheter was connected to Baxter APⅡ electronic pump, with 100 m L Ropivacaine(0.1%) and Sufentanil(50 ug), background infusion5 m L, Patient controlled analgesia(PCA) dose of 5m L, lockout interval of 10 min. The control group was not received analgesia. The visual analogue scale(VAS), stage and manner of labor, Apgar score of newborn, neonatal weights, oxytocin dosage,postpartum hemorrhage and side effects were monitored in all groups.RESULTS: The vital signs were all stable in the four analgesic groups. After analgesia, there was statistical difference in VAS score between HANS group and control group, between PCEA group and the control group, between PCIA group and control group. The analgesic effect in the PCEA group was significantly better than that of other two groups.The second stage of labor in the PCEA group was longer than the other three groups, showing significant difference between them. The Apgar score of newborn 1min after birth in the PCIA group was slightly lower than that of the other two groups,showing significant difference between them. The neonatal weights between four groups were not significantly different. The rate of cesarean sectionin the control group was significantly higher than that of the labor analgesia group, there was statistically difference in four groups. The number of PCIA group that used oxytocin was lower than that of other three groups. There was no significant difference in postpartum hemorrhage between four groups. The side effects of the PCEA group were itching, uroschesis and neonatal asphyxia and PCIA group were nausea and vomiting and neonatal asphyxia. However, fewer side effects were observed in the HANS group.CONCLUSION: The DC pulse produced by HANS may be a non-pharmacological alternative to labor pain with fewer side effects.Liu Ye Xu Mingjun Che Xiangming He Junqin Guo Dandan Zhao Guosheng Zhang Guogang Zhang Shuo Kang Kai Zhang Chunlei Wang Yinan Li Shan Zhang Qinglin Xu Li Zhang Ming Han Bin Jing Yumiao Zhang Ning 2015Journal of Traditional Chinese Medicine2015,35,6:4
7Number of Species and Geographical Distribution of Diospyros L.(Ebenaceae) in China显示文摘Diospyros L. is the largest, most widely distributed, and economically important genus of the family Ebenaceae. However, various researchers disagree on the number of species and geographical distribution of Diospyros in China. For the purpose of providing a scientific basis for the effective protection and rational use of Diospyros, the present study involved a comprehensive review of the literature, electronic databases, and herbaria as well as field investigations. The results showed as the following.(1) While 174 scientific names have been published for various taxa of Diospyros in China, by screening and excluding synonyms, 65 species names were considered acceptable; these account for about 12%of the total species of Diospyros globally.(2) A review of herbarium specimens documented that Diospyros occurs in 28 administrative regions of China, more than the literature records. Species richness decreases from south to north in China while Guangxi, Yunnan, Guangdong, and Hainan have the greatest number of species.(3) Among the 65 relatively reliable Diospyros species, 45 species are endemic to China and 18 species are stenochoric. Some species may have become extinct as a result of environmental degradation and the status of some germplasm remain unresolved. In brief, Chinese Diospyros includes abundant, China-specific, and widely distributed features. Nevertheless, comprehensive species delimitation and the analysis of phylogenetic relationships will still require further study.Donglan Tang Qinglin Zhang Liqing Xu Dayong Guo Zhengrong Luo 2019Horticultural Plant Journal2019,5,2:4
8Adaptation of Asia-Pacific forests to climate change显示文摘Climate change is a threat to the stability and productivity of forest ecosystems throughout the AsiaPacific region. The loss of forests due to climate-induced stress will have extensive adverse impacts on biodiversity and an array of ecosystem services that are essential for the maintenance of local economies and public health. Despite their importance, there is a lack of decision-support tools required to evaluate the potential effects of climate change on Asia-Pacific ecosystems and economies and to aid in the development of regionally appropriate adaptation and mitigation strategies. The project Adaptation of AsiaPacific Forests to Climate Change, summarized herein,aims to address this lack of knowledge and tools and to provide support for regional managers to develop effective policy to increase the adaptive capacity of Asia-Pacific forest ecosystems. This objective has been achieved through the following activities:(1) development of a highresolution climate downscaling model, Climate AP, applicable to any location in the region;(2) development of climate niche models to evaluate how climate change might affect the distribution of suitable climatic conditions for regionally important tree species;(3) development and application of forest models to assess alternative management strategies in the context of management objectives and the projected impacts of climate change;(4) evaluation of models to assess forest fire risk and the relationship between forest fire and climate change;(5) development of a technique to assess ecosystem carbon storage using Li DAR; and(6) evaluation of how vegetation dynamics respond to climate change using remote sensing technology. All project outputs were developed with a focus on communication and extension to facilitate the dissemination of results to regional forest resource managers to support the development of effective mitigation and adaptation policy.Guangyu Wang Tongli Wang Haijun Kang Shari Mang Brianne Riehl Brad Seely Shirong Liu Futao Guo Qinglin Li John L.Innes 2016Journal of Forestry Research2016,27,3:2
9Diamond-structured hollow-tube lattice Ni materials via 3D printing显示文摘Light-weight and high-strength materials have attracted considerable attention owing to their outstanding properties, such as weight-reducing, acoustic absorption, thermal insulation, shock and vibration damping. Diamond possesses specific stiffness and strength arising from its special crystal structure. In this work, inspired by the diamond crystal structure, hollow-tube nickel materials with the diamond structure were fabricated using a diamond structured polymer template based on the Stereo Lithography Appearance technology. The diamond structured template was coated with Ni-P by electroless plating. Finally, the template was removed by high temperature calcinations. The density of the hollow tube nickel materials is about 20 mg/cm3. The morphology and composition of the resultant materials were characterized by scanning electron microscope, energy-dispersive spectrometry, and X-ray diffraction. The results showed that the surface of the Ni film was uniform with the thickness of 4 μm.The mechanical property was also measured by stress and strain tester. The maximum compression stress can be reached to40.6 KPa.Jingjing Xu Yan Gao He Huang Qinglin Yang Lin Guo Lei Jiang 2016Science China Chemistry2016,59,12:2
10Genetic differences among ‘Luotian-tianshi’ ( Diospyros kaki Thunb.) genotypes native to China revealed by ISSR and IRAP markers显示文摘Luxia Yuan Qinglin Zhang Dayong Guo Zhengrong Luo 2012Scientia Horticulturae2012,,:1
11Numerical simulation of the behaviors of test square for prehistoric earthen sites during archaeological excavation显示文摘During the process of archaeological excavation in the regions of Southeast China, collapse of test square usually occurs due to poor site-specific conditions. In this paper, the fast Lagrangian analysis of continua in three dimensions(FLAC3D) is employed to reveal the behaviors of test square. Taking the archaeological works in Liangzhu prehistoric earthen sites as the research background, the paper first introduces the geological setting, excavation procedure and monitoring scheme of the studied test square. Then, the deformation of four sides of the test square is modeled using FLAC3D. By comparison, it shows that the numerical results are consistent with the results from field monitoring. The result suggests that the numerical simulation can be effectively applied to representing the actual behaviors of the test square,which is helpful for determination of excavation scheme and stability evaluation of the test square during archaeological excavation.Xudong Wang Zongren Yu Jingke Zhang Qinglin Guo Shanlong Yang Manli Sun 2018Journal of Rock Mechanics and Geotechnical Engineering2018,10,3:1
12Lateral composition-graded semiconductor nanoribbons for multi-color nanolasers显示文摘低维的半导体 nanostructures 在综合 photonic 和 optoelectronic 设备为应用吸引了许多兴趣。在单个半导体 nanoribbons 以内的乐队差距工程帮助在二个不同的洞操作光子行为(在宽度和长度方向) 并且认识到新 photonic 现象和应用。在这个工作,侧面的分级作文的半导体 nanoribbons 通过一条改进来源动人蒸汽阶段线路第一次被种。沿着 nanoribbon 的宽度,材料罐头逐渐地与相应乐队差距调整从纯 CdS 被调节到高度做 Se 的 CdSSe 合金从 2.42 ~ 1.94 eV。完成的合金带子是全面高质量的晶体,和有的位置依赖者乐队边光致发光(PL ) 排放连续地从 ~ 调节的山峰波长 515 到 ~ 640 nm。这些带子能认识到放射激光,三组放射激光的模式在 519, 557,和 623 nm 集中了的多色。红放射激光从沿着长度方向的光回声,这被证实,当绿色并且黄放射激光从沿着宽度方向的光回声时。这些新奇 nanoribbon 结构可以被用于许多综合 photonic 和 optoelectronic 设备。Xiujuan Zhuang Pengfei Guo Qinglin Zhang Huawei Liu Dan Li Wei Hu Xiaoli Zhu Hong Zhou Anlian Pan 2016Nano Research2016,9,4:1
13Laser microprobe emission spectrum in argon atom sphere at reduced pressure显示文摘GUO QINGLIN WEI YANHONG CHEN JIN ZHONG 2000SPIE2000,4221,:1
14White-light-emitting diodes of UV-based Sr 3 Y 2 (BO 3 ) 4 :Dy 3+ and luminescent properties显示文摘Panlai Li Zhiping Yang Zhijun Wang Qinglin Guo 2007Materials Letters2007,,10:1
15Sub-tropic degraded red soil restoration: Is soil organic carbon build-up limited by nutrients supply显示文摘Xia Gong Yuanqiu Liu Qinglin Li Xiaohua Wei Xiaomin Guo Dekui Niu Wenyuan Zhang Junxia Zhang Lu Zhang 2013Forest Ecology and Management2013,,:1
16Discussion on the environmental adaptability of weather-resistant measures for earthen sites in China显示文摘Earthen sites are important remains of past human societies.Weather-resistant measures comprise a major part of conservation eforts for earthen sites.Marked advancements in weather-resistant techniques have been made in recent years.Earthen sites are characterised by large numbers,large scales,various types,complex compositions,and diverse existing environments.Weather-resistant measures difer signifcantly in their environmental adaptability.The environmental adaptability of weather-resistant measures severely restricts further development and popularisation of weather-resistant technology at earthen sites.Based on the environmental and weathering characteristics of existing earthen sites in China,the consolidation and failure mechanisms of several weather-resistant measures(penetrating consolidation,sacrifcial layers,soft capping,protective structures,and backflling protection)were examined.The potential areas to increase the success of the diferent weather-resistant measures were obtained combined with the characteristics of various environmental boundaries.Xudong Wang Bo Zhang Qinglin Guo Qiangqiang Pei 2022Built Heritage2022,6,3:1
17Synthesis and luminescent properties of CaMoO 4 :Tb 3+ , R + (Li + , Na + , K + )显示文摘Xu Li Zhiping Yang Li Guan Jianxin Guo Ying Wang Qinglin Guo 2008Journal of Alloys and Compounds2008,,1:1
18Luminescent characteristics of LiSrBO 3 :M (M显示文摘Panlai Li Zhijun Wang Zhiping Yang Qinglin Guo Guangsheng Fu 2009Materials Research Bulletin2009,,11:1
19Agricultural Technologies for Enhancing the Phytoremediation of Cadmium-Contaminated Soil by Amaranthus hypochondriacus L.显示文摘Ningyu Li Zhian Li Qinglin Fu Ping Zhuang Bin Guo Hua Li 2013Water Air & Soil Pollution2013,,9:1
20Scalable synthesis of A_2S_3 (A=Sb, Bi) submicro/nanowires using their powders via solvothermal proceeding显示文摘Single-crystal A2S3 (A=Sb, Bi) nanowires were successfully prepared via using their powders as precursors by solvothermal proceeding. The reac-tion temperature and time as well as solvent strongly influence final A2S3 crystalline morphology and size. Experimental results show that Sb2S3 rods prepared in ethylene glycol are thicker than its wires with av-erage diameter of 400 nm prepared in the mixture solvent of ethylene glycol and ethylenediamine at 200 oC for 24 h. However, under the same reaction con-dition, uniform submicrowires of Bi2S3 with average diameter of 150 nm can be obtained. When reaction temperature is decreased to 150 oC and reaction time is 40 h, pure Sb2S3 wires cannot be prepared. The possible mechanism is briefly discussed for the transformation of the Sb2S3 powders to their wire-like crystals.JI Tianhao LIU Guanrao QI Xingyi YANG Qinglin DENG Yuan GUO Lin 2006Chinese Science Bulletin2006,51,6:1
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