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| 1 | Effect of foaming pressure on the properties of porous Si 3 N 4 ceramic fabricated by technique combining foaming and pressureless-sintering显示文摘 | Xiangming Li Pute Wu Delan Zhu | 2013 | Scripta Materialia2013，，： | 1 |
| 2 | Effect of foaming pressure on the properties of porous Sin N4 ceramic fabrica- ted by a technique combining foaming and pressureless sin- tering显示文摘 | Li Xiangming Wu Pute Zhu Delan | 2013 | Script Mater2013，68，： | 1 |
| 3 | Hydraulic design procedure for drip irrigation submain unit based on relative flow difference 显示文摘 | Zhang Lin Wu Pute Zhu Delan | 2013 | Irrigation Science2013，31，5： | 1 |
| 4 | Gravity-fed drip irrigation design procedure for a single-manifold subunit 显示文摘 | Wu Pute Zhu Delan Wang J | 2010 | Irrigation Science2010，28，4： | 1 |
| 5 | Effect of foaming pressure on the properties of porous Si 3 N 4 ceramic fabricated by technique combining foaming and pressureless-sintering显示文摘 | Xiangming Li Pute Wu Delan Zhu | 2013 | Scripta Materialia2013，，： | 1 |
| 6 | Properties of porous alumina ceramics prepared by technique combining cold-drying and sintering显示文摘 | Xiangming Li Pute Wu Delan Zhu | 2013 | International Journal of Refractory Metals and Hard Materials2013，，： | 1 |
| 7 | Properties of porous alumina ceramics prepared by technique combining cold-drying and sintering显示文摘 | Xiangming Li Pute Wu Delan Zhu | 2013 | International Journal of Refractory Metals and Hard Materials2013，，： | 1 |
| 8 | Hydraulic design procedure for drip irrigation submain unit based on relative flow difference显示文摘 | ZHANG Lin WU Pute ZHU Delan | 2013 | Irrigation Science2013，31，5： | 1 |
| 9 | Newly-simplified method for hydrauli design of micro-irrigation laterals based on emission uniformity显示文摘An analytical approach was developed to design a single uniformly sloping lateral in the micro-irrigation systems.Emission uniformity was used as the water application uniformity criterion.Energy relations based on the energy-gradient-line approach were revamped to account for the spatial variance of emitter outflow and the emitter connections local energy losses.Four pressure head grade line profiles were distinguished:uphill,horizontal,gentle downhill and steep downhill.Analytical expressions of emission uniformity by hydraulic variation for each pressure profile were developed based on the design variables:length and diameter of lateral,emitter spacing,emitter flow equation parameters,equivalent length characterizing local losses and ground slope.The design conditions for selecting emitter type,the number of emitters per plant and designing the diameter of the uphill and steep downhill laterals were also developed.The nonlinear equations for determining lateral diameter and lateral length were solved iteratively by using the built-in root-finding function of(Tools>Goal Seek…)in the calculation spreadsheet of Microsoft Excel.The procedures also provide the options to fix the design lateral diameter with the commercial standard size or fix the design lateral length based on the field size.The operating inlet pressure and maximum amplitude of the pressure head throughout the lateral could also be determined easily by the procedure.Two numerical applications with various slope combinations indicate that the proposed analytical approach produces results close to the accurate stepwise numerical solutions.In comparison with Keller method,the proposed approach could produce more appropriate designs. | Ju Xueliang Wu Pute Paul R.Weckler Zhu Delan Zhang Lin | 2015 | 排灌机械工程学报2015，33，8： | 1 |
| 10 | Effects of the growing-maize canopy and irrigation characteristics on the ability to funnel sprinkler water显示文摘Stemflow is vital for supplying water,fertilizer,and other crop essentials during sprinkler irrigation.Exploring the spatial and temporal variations of crop stemflow and its influencing factors will be essential to preventing soil water and nutrient ion's migration to deeper layers,developing,and optimizing effective sprinkler irrigation schedules.Based on the two-year experimental data,we analyzed the variation patterns(stemflow amount,depth,rate,and funneling ratio)of maize stemflow during the growing season,and clarified its vertical distribution pattern.Meanwhile,effects of sprinkler irrigation and maize morphological parameters on stemflow were investigated.The results showed that stemflow increased gradually as maize plant grew.Specifically,stemflow was small at the pre-jointing stage and reached the maximum at the late filling stage.The upper canopy generated more stemflow than the lower canopy until the flare opening stage.After the tasseling stage,the middle canopy generated more stemflow than the other positions.Variation in canopy closure at different positions was the main factor contributing to the above difference.As sprinkler intensity increased,stemflow also increased.However,the effect of droplet size on stemflow was inconsistent.Specifically,when sprinkler intensity was less than or equal to 10 mm/h,stemflow was generated with increasing droplet size.In contrast,if sprinkler intensity was greater than or equal to 20 mm/h,stemflow tended to decreased with increasing droplet size.Compared with other morphological parameters,canopy closure significantly affected the generation of stemflow.Funneling ratio was not significantly affected by plant morphology.Based on the results of different sprinkler intensities,we developed stemflow depth versus canopy closure and stemflow rate versus canopy closure power function regression models with a high predictive accuracy.The research findings will contribute to the understanding of the processes of stemflow involving the hydro-geochemical cycle of agro-ecosystems and the implementation of cropland management practices. | ZHU Zhongrui ZHU Delan GE Maosheng LIU Changxin | 2022 | Journal of Arid Land2022，14，7： | 0 |
| 11 | Identification of a novel efficient transcriptional activation domain from Chinese fir(Cunninghamia lanceolata)显示文摘Direct manipulation of gene expression in vivo is a powerful approach for investigating biological systems and bioengineering in plants(Zhang et al.,2015;Zhao et al.,2015;Lowder et al.,2018).In the past decade,considerable progress has been made in developing techniques for gene targeting. | Tengfei Zhu Wenyu Tang Delan Chen Jian Li Jun Su | 2021 | Journal of Genetics and Genomics2021，48，3： | 0 |
| 12 | Influence of sprinkler irrigation droplet diameter, application intensity and specific power on flower damage显示文摘To determine the main parameters of droplet strike damage and avoid flower injury due to the unsuitable practices during sprinkler irrigation, an indoor experiment of irrigation droplet impact on cyclamen was conducted.The influences of different parameters such as droplet diameter, application intensity, specific power on flower strike damage was analyzed using Image Pro-Plus software to compute strike damage area and define damage level by sense-analysis. The results showed that a damage area of < 1% represents a safe irrigation level, 1%–3% slight damage level, 3%–6% moderate damage level, and > 6%heavy damage level. Equations of application intensity,specific power with sprinkler irrigation time and flower injury ratio were regressed against parameters which cause impact damages. The results indicated that specific power has a significant correlation with injury, and flower damage area increased as the increasing of the value of specific power for the same irrigation time. Application intensity was also correlated with injury when the droplet diameter was larger than 1 mm. When the duration of sprinkler irrigation was 1, 5 and 10 min, the threshold of impinging damage of application intensity was 25.30, 5.01 and1.64 mm·h^(–1) and the specific power was 0.467×10^(–3),9.340×10^(–3) and 3.110×10^(–3)W·m^(–2). These results provide a reference for determining the suitable values of sprinkler properties in operation design. | Yisheng ZHANG Delan ZHU | 2017 | Frontiers of Agricultural Science and Engineering2017，4，2： | 0 |
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