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| 1 | Effects of citrus tree-shape and spraying height of small unmanned aerial vehicle on droplet distribution显示文摘In order to explore the droplet penetration of spraying with unmanned aerial vehicle(UAV)on citrus trees with different shapes,the tests were carried out at different working heights.The material was five years old Cocktail grapefruit(Citrus paradisi cv.Cocktail)grafted on Trafoliata(Poncirus trifoliata L.Raf.)and the type of UAV sprayer used was the 3W-LWS-Q60S.A solution of 300 times Ponceau 2R diluents liquid instead of pesticide was used for citrus fields spraying and the droplets were collected by paper cards.Droplets deposition parameters were extracted and analyzed using digital image processing after scanning the cards.The results showed that:1)For the trees with round head shape canopy,the droplet depositions of the upper,middle and lower layers had a significant difference at 0.05 level.The droplet deposition had the best effect when the working height was 1.0 m,where the average droplet deposition densities were 39.97 droplets/cm2 and the average droplet size was 0.30 mm,but the droplet coverage(3.19%)was lower than that at the working height of 1.5 m(4.27%).2)Under three different working heights of UAV,the tree with open center shape can obtain higher droplet deposition density at all three layers than that with the round head shape canopy.It was especially prominent when the working height was 1.0 m,as the middle layer increased by 49.92%.However,the higher range of droplet deposition density meant larger fluctuation and dispersion.3)The open center shape canopy and the 1.0 m working height obviously improved the droplet coverage rate and droplet density in the citrus plant.For these parameters of open center shape citrus tree,there was no obvious difference in the front and rear direction,but in the left and middle part of the tree crown,the difference reached a 0.05 significant level.Considering droplet deposition characteristics and the spray uniformity,the UAV performed better when working on open center shape plants at a 1.0 m working height. | Zhang Pan Deng Lie Lyu Qiang He Shaolan Yi Shilai Liu Yande Yu Yongxu Pan Haiyang | 2016 | International Journal of Agricultural and Biological Engineering2016，9，4： | 37 |
| 2 | Petroleum Migration Direction of the Silurian Paleo-pools in the Tarim Basin, Northwest China显示文摘摘要:在这份报纸获得的结果显示 carbazole 类型混合物有高热的稳定性并且也在氧化和简历降级显示出稳定性。这种混合物仍然在分析干燥沥青样品有高集中和完全的分发,证明他们在学习 paleo 水池的石油移植是特别地有用的。在期间盆在在 Tarim 盆的 Tazhong 和 Tabei 区域的志留纪的油气体水池形成是第一阶段的(在志留纪时期的结束) 并且在 Awati 区域的秒阶段(在里面二叠) ,石油经历了长途的迁居。在志留纪的结束在在 Tazhong 的志留纪 paleo 水池的形成期间高举,石油主要在 Manjiaer 来自更低、中间的寒武纪的来源岩石下垂。石油向首先在 Tazhong 进入志留纪水库床的西南南方移居了。然后,它进一步沿着结构的带的高度从西北在志留纪以内移居了到东南到在 Tazhong 的志留纪 pinchout 边界的区域。在 Tabei 高举,在期间水池形成第一阶段,石油也从在 Manjiaer 的更低、中间的寒武纪的来源岩石下垂。它移植了西北进入在 Tabei 的志留纪水库床第一高举,然后迁居在志留纪水库以内在一样的方向继续,最后,石油在更高的位置被套住。在在志留纪的秒阶段水池形成期间,在在 Awati 附近的区域的床下垂,石油主要在 Awati 来自降低中间的寒武纪的来源岩石下垂。石油通过主要路径在 sag 附近在所有方向从产生中心移居了到志留纪水库,并且石油最后在更高的地点被套住。 | LIU Luofu ZHAO Yande HUO Hong CHEN Lixin CHEN Yuanzhuang ZHAO Suping LI Chao LI Shuangwen GUO Yongqiang LI Yan Key Lab for Hydrocarbon Accumulation Mechanism in the China University of Petroleum,Ministry of Education Basin and Reservoir Research Center, China University of Petroleum,Beijing 102249, China | 2008 | Acta Geologica Sinica(English Edition)2008，82，1： | 12 |
| 3 | Evidence of Oil Sources and Migration in Triassic-Jurassic Reservoirs in the South Tianhuan Depression of the Ordos Basin, China Based on Analysis of Biomarkers and Nitrogen-Bearing Compounds显示文摘The Ordos Basin is an important intracontinental sedimentary basin in western China for its abundant Mesozoic crude oil resources. The southern part of the Tianhuan Depression is located in the southwestern marginal area of this Basin, in which the Jurassic and Triassic Chang-3 are the main oil-bearing strata. Currently, no consensus has been reached regarding oil source and oil migration in the area, and an assessment of oil accumulation patterns is thus challenging. In this paper, the oil source, migration direction, charging site and migration pathways are investigated through analysis of pyrrolic nitrogen compounds and hydrocarbon biomarkers. Oil source correlations show that the oils trapped in the Jurassic and Chang-3 reservoirs were derived from the Triassic Chang-7 source rocks. The Jurassic and Chang-3 crude oils both underwent distinct vertical migration from deep to shallow strata, indicating that the oils generated by Chang-7 source rocks may have migrated upward to the shallower Chang-3 and Jurassic strata under abnormally high pressures, to accumulate along the sand bodies of the ancient rivers and the unconformity surface. The charging direction of the Jurassic and Chang-3 crude oils is primarily derived from Mubo, Chenhao, and Shangliyuan, which are located northeast of the southern Tianhuan Depression, with oils moving toward the west, southwest, and south. The results show that an integration of biomarker and nitrogen-bearing compound analyses can provide useful information about oil source, migration, and accumulation. | ZHAO Yande YAO Jingli SUN Bainian Duan Yi DONG Chong DENG Xiuqing LIU Luofu | 2014 | Acta Geologica Sinica(English Edition)2014，88，6： | 10 |
| 4 | Nondestructive assessment of quality of Nanfeng mandarin fruit by a portable near infrared spectroscopy显示文摘A portable near infrared spectroscopy system was developed for assessing the quality of Nanfeng mandarin fruit.One hundred and fifty-three Nanfeng mandarin samples were used to measure the performance of the system.Several pretreatment methods were adopted to process the spectra.Then Support Vector Machine(SVM),Back Propagation Neural Network(BPNN)and Partial Least Square(PLS)were used to build models for soluble solids content(SSC),titratable acidity(TA),vitamin C and surface color.The best results were obtained by SVM.The correlation coefficient(R)and root mean square error of prediction(RMSEP)were(0.93,0.65°Brix),(0.66,0.09%),(0.81,2.7mg/100g)and(0.57,0.81)for SSC,TA,vitamin C and color,respectively.The results demonstrated that the portable near infrared spectroscopy was feasible for determining the Nanfeng mandarin quality nondestructively. | Sun Xudong Zhang Hailiang Liu Yande | 2009 | International Journal of Agricultural and Biological Engineering2009，2，1： | 3 |
| 5 | Hard sialonceramics reinforced with SiC nanoparticles显示文摘 | LIU Q GAOl YANDS etal | 1999 | Mater Sci Eng A1999，269，12： | 2 |
| 6 | Lightweight 3D bioprinting with point by point photocuring显示文摘As photocrosslinkable materials,methacryloyl-modified hydrogels are widely used as bioinks in tissue engineering.Existing printing methods to use these hydrogels,including changing the viscosity of the material or mixing them with other printing components,have been explored,but their application has been limited due to low printing quality or high cost.In addition,the complex operation of bulky equipment restricts the application of these existing printing methods.This study presents a lightweight stereolithography-based three-dimensional(3D)bioprinting system with a smart mechanical and structural design.The developed bioprinter dimensions were 300 mm×300 mm×200 mm and it can be placed on a benchtop.The equipment has a mini bioink chamber to store a small amount of bioink for each printing.We systematically investigated the point-by-point curing process in the 3D bioprinting method,which can print mixed cells accurately and have good biocompatibility.Here,we provide a compact,low-cost stereolithography bioprinting system with excellent biocompatibility for 3D bioprinting with methacryloyl-modified hydrogels.It can be potentially used for drug screening,studying pathological mechanisms,and constructing biological disease models. | Peng Zhang Haoxuan Wang Peng Wang Yating Zheng Linxiang Liu Jun Hu Yande Liu Qing Gao Yong He | 2021 | Bioactive Materials2021，6，5： | 2 |
| 7 | Mechanism of Silurian Hydrocarbon Pool Formation in the Tarim Basin显示文摘There are three formation stages of Silurian hydrocarbon pools in the Tarim Basin. The widely distributed asphaltic sandstones in the Tazhong (central Tarim) and Tabei (northern Tarim) areas are the results of destruction of hydrocarbon pools formed in the first-stage,and the asphaltic sandstones around the Awati Sag were formed in the second-stage. The hydrocarbon migration characteristics reflected by the residual dry asphalts could represent the migration characteristics of hydrocarbons in the Silurian paleo-pools,while the present movable oil in the Silurian reservoirs is related to the later-stage (the third-stage) hydrocarbon accumulation. | Liu Luofu Chen Yuanzhuang Chen Lixin Pang Xiongqi Xie Qilai Huo Hong Zhao Suping Li Chao Li Shuangwen Guo Yongqiang Zhao Yande Li Yan | 2007 | Petroleum Science2007，4，4： | 2 |
| 8 | Nondestructive measurement of soluble solid content of navel orange fruit by visible–NIR spectrometric technique with PLSR and PCA-BPNN显示文摘 | Yande Liu Xudong Sun Aiguo Ouyang | 2009 | LWT - Food Science and Technology2009，，4： | 2 |
| 9 | Nondestructive measurement of internal quality in pear using genetic algorithms and FT-NIR spectroscopy显示文摘 | Ying Yibin Liu Yande | 2008 | Journal ofFood Engineering2008，84，2： | 1 |
| 10 | Use of FT-NIR spectrometry in non-invasive measurements of internal quality of 'Fuji' apples显示文摘 | LIU Yande YING Yibin | 2005 | Postharvest Biology and Technology2005，37，1： | 1 |
| 11 | Synthesis and Properties of Paraffin Capsules as Phase Change Materials显示文摘 | JIN Zhaoguo WANG Yande LIU Jiguang | 2008 | Polymer2008，49，： | 1 |
| 12 | Tilting stability analysis and experiment of the 3-DOF lifting platform for hilly orchards显示文摘An orchard-lifting platform is a type of mechanical equipment to assist growers in fruit picking,fruit tree pruning,flower thinning,and other operations.In its operational processes,the tilting stability directly affects the operational safety and adaptability under complex terrain conditions,while critical tilting angle is an important criterion to evaluate the tilting stability.Based on the structure and the operating characteristics of the three degree of freedom(3-DOF)lifting platform for hilly orchards,the tilting stability was analyzed in different parked states,and the theoretical expressions of critical tilting angle were obtained;in the theoretical expressions,the influencing factors on tilting stability were determined as the parked positionβ1,the manned worktable rotary positionβ2,the lifting height h,and the load m.Based on the multi-body dynamics principle,the tilting stability simulation was carried out.The relative error of tilting angles was approximately 4.6%between simulation and tilting verification experiment,which indicated that the results of tilting stability simulation were reliable.Therefore,the multi-body dynamics simulation was used for further clarifying the influencing factors on tilting stability.A virtual orthogonal test was designed,and the results showed that critical tilting angle ranged from 20°to 44°when the factors were at different values,which indicated that the 3-DOF lifting platform for hilly orchards had a high tilting stability performance and could adapt to the operating conditions of hills with slope angles from 5°to 20°.The results of the range analysis and ANOVA showed that the influence intensity of factors on tilting stability wasβ1>h>m>β2;at the same time,β1,h,and m exerted significant effect on tilting stability.The tilting stability first decreased and then either increased or decreased with the increasing lifting height;it gradually decreased with the increasing load.It also showed that the position of the manned worktable along the slope down always had the lowest tilting stability.This research can provide a theoretical basis and reference for the analysis of tilting stability of the lifting machinery for hilly orchards. | Zhenhua Duan Wei Qiu Weimin Ding Yande Liu Yuping Ouyang Liang Huang | 2018 | International Journal of Agricultural and Biological Engineering2018，11，6： | 1 |
| 13 | Nondestructive measurement of soluble solid content of navel orange fruit by visible-NIR spectrometric technique with PLSR and PCA-BPNN显示文摘 | LIU Yande SUN Xudong OUYANG Aiguo | 2010 | LWT-Food Science and Technology2010，43，： | 1 |
| 14 | Use of FT-NIR spectrometry in non-invasive measurements of internal quality of 'Fuji' apples显示文摘 | Liu Yande Ying Yibin | 2005 | Postharvest Biology and Technology2005，37，1： | 1 |
| 15 | Improved camera calibration method based on perpendicularity compensation for binocular stereo vision measurement system显示文摘 | Jia Zhenyuan Yand Jinghao Liu Wei | 2015 | Optic Express2015，23，15： | 1 |
| 16 | Hydrogen storage in carbon nanotubes显示文摘 | CHENG H M YAND Q H LIU C | 2001 | Carbon2001，39，： | 1 |
| 17 | Analyses of enrofloxacin, furazolidone and malachite green in fish products with surface-enhanced Raman spectroscopy显示文摘 | Yuanyuan Zhang Yiqun Huang Fuli Zhai Rui Du Yande Liu Keqiang Lai | 2012 | Food Chemistry2012，，2： | 1 |
| 18 | Characteristics of Oil Sources from the Chepaizi Swell,Junggar Basin,China显示文摘到目前为止 Chepaizi 的油来源上没有普通意见在 Junggar 盆胀大。因此,决定小径系统和烃移植的趋势是困难的,并且这在油气体累积模式的学习导致困难。在这份报纸,在从 Chepaizi 的油的氮混合物分发的学习被执行以便分类在学习区域在不同水库存储的油的来源岩石。然后,从一样的来源的油的移植特征被使用氮混合物参数调查。在从一样的来源的一组油 / 油沙样品的氮混合物的结果显示在 Chepaizi 套住的油胀大经历了明显的垂直迁居。与增加迁居距离, carbazoles 的数量和索引有一个常规变化模式(在一种好线性关系中) 。由使用氮混合物技术, Chepaizi 的分析油 / 油沙样品能被分类进二个组。一个人是在白垩纪的水库床上存储的样品并且第三级,并且这些油来自主要有白垩纪岩石的小数量的侏罗记来源岩石;其它在侏罗记存储的那些,二叠、含碳的床,和他们从二叠的来源被发源。另外,从一座上面的侏罗记水库(井 Ka 6 ) 的油的一件样品,从侏罗记煤来源岩石被产生,从那些有完全不同的氮混合物分布上述二组样品,它从 mudstone 来源被产生。因为从油移植的分别的影响,有不同结构和极性的氮混合物的数量和比率随着增加移居的距离定期变化,并且作为结果,与一样的来源一起的样品在内容和比率跟随一种好线性关系,当不同来源的油样品由于他们的来源岩石的不同有机物类型有显然不同的氮混合物分发时。油来源学习的这些结论是相同的,那些由另外的 geochemical 简历标记获得了。因此,氮混合物具有在油类型分类和油 / 来源关联的大意义。 | LIU Luofu KUANG Jun WANG Ping CHEN Zhijun WANG Weibin ZHAO Yande WU Lin JIN Jun WANG Weili MENG Jianghui ZHOU Jieli LIU Guodong | 2010 | Acta Geologica Sinica(English Edition)2010，84，5： | 1 |
| 19 | Nondestructive measurement of internal quality in pear using genetic algorithms and FT-NIR spectroscopy显示文摘 | Ying Yibin Liu Yande | 2008 | Journal of Food Engineering2008，84，2： | 1 |
| 20 | Nondestructive measurement of internal quality in pear using genetic algorithms and FT-NIR spectroscopy 显示文摘 | Yibin Ying Yande Liu | 2008 | Journal of Food Engineering2008，84，： | 1 |
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