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Genome-wide and candidate gene association studies identify BnPAP17 as conferring the utilization of organic phosphorus in oilseed rape
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作者 Ping Xu Hao li +6 位作者 haiyuan li Ge Zhao Shengjie Dai Xiaoyu Cui Zhenning liu Lei Shi Xiaohua Wang 《Journal of Integrative Agriculture》 SCIE CAS CSCD 2024年第4期1134-1149,共16页
Phosphorus(P)is essential for living plants,and P deficiency is one of the key factors limiting the yield in rapeseed production worldwide.As the most important organ for plants,root morphology traits(RMTs)play a key ... Phosphorus(P)is essential for living plants,and P deficiency is one of the key factors limiting the yield in rapeseed production worldwide.As the most important organ for plants,root morphology traits(RMTs)play a key role in P absorption.To investigate the genetic variability of RMT under low P availability,we dissected the genetic structure of RMTs by genome-wide association studies(GWAS),linkage mapping and candidate gene association studies(CGAS).A total of 52 suggestive loci were associated with RMTs under P stress conditions in 405 oilseed rape accessions.The purple acid phosphatase gene BnPAP17 was found to control the lateral root number(LRN)and root dry weight(RDW)under low P stress.The expression of BnPAP17 was increased in shoot tissue in P-efficient cultivars compared to root tissue and P-inefficient cultivars in response to low P stress.Moreover,the haplotype of BnPAP17^(Hap3)was detected for the selective breeding of P efficiency in oilseed rape.Over-expression of the BnPAP17^(Hap3)could promote the shoot and root growth with enhanced tolerance to low P stress and organic phosphorus(Po)utilization in oilseed rape.Collectively,these findings increase our understanding of the mechanisms underlying BnPAP17-mediated low P stress tolerance in oilseed rape. 展开更多
关键词 genome-wide association studies(GWAS) root morphology traits(RMTs) organic phosphorus(Po) oilseed rape BnPAP17
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An internal ballistic model of electromagnetic railgun based on PFN coupled with multi-physical field and experimental validation
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作者 Benfeng Gu haiyuan li Baoming li 《Defence Technology(防务技术)》 SCIE EI CAS CSCD 2024年第2期254-261,共8页
To accelerate the practicality of electromagnetic railguns,it is necessary to use a combination of threedimensional numerical simulation and experiments to study the mechanism of bore damage.In this paper,a three-dime... To accelerate the practicality of electromagnetic railguns,it is necessary to use a combination of threedimensional numerical simulation and experiments to study the mechanism of bore damage.In this paper,a three-dimensional numerical model of the augmented railgun with four parallel unconventional rails is introduced to simulate the internal ballistic process and realize the multi-physics field coupling calculation of the rail gun,and a test experiment of a medium-caliber electromagnetic launcher powered by pulse formation network(PFN)is carried out.Various test methods such as spectrometer,fiber grating and high-speed camera are used to test several parameters such as muzzle initial velocity,transient magnetic field strength and stress-strain of rail.Combining the simulation results and experimental data,the damage condition of the contact surface is analyzed. 展开更多
关键词 Internal ballistic modeling Electromagnetic rail gun Multi-physics field coupling Experimental validation PFN
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A Review of Smart Materials for the Boost of Soft Actuators,Soft Sensors,and Robotics Applications 被引量:6
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作者 Yufei Hao Shixin Zhang +3 位作者 Bin Fang Fuchun Sun Huaping liu haiyuan li 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2022年第2期12-27,共16页
With the advance of smart material science,robotics is evolving from rigid robots to soft robots.Compared to rigid robots,soft robots can safely interact with the environment,easily navigate in unstructured fields,and... With the advance of smart material science,robotics is evolving from rigid robots to soft robots.Compared to rigid robots,soft robots can safely interact with the environment,easily navigate in unstructured fields,and be minimized to operate in narrow spaces,owning to the new actuation and sensing technologies developed by the smart materials.In the review,different actuation and sensing technologies based on different smart materials are analyzed and summarized.According to the driving or feedback signals,actuators are categorized into electrically responsive actuators,thermally responsive actuators,magnetically responsive actuators,and photoresponsive actuators;sensors are categorized into resistive sensors,capacitive sensors,magnetic sensors,and optical waveguide sensors.After introducing the principle and several robotic prototypes of some typical materials in each category of the actuators and sensors.The advantages and disadvantages of the actuators and sensors are compared based on the categories,and their potential applications in robotics are also presented. 展开更多
关键词 Smart material Soft robot ACTUATOR SENSOR
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分期岛状包皮瓣尿道板重建术在重度尿道下裂中的应用 被引量:1
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作者 范世鹏 申吉泓 +3 位作者 李海源 高鸿斌 罗宁 赵晖 《昆明医科大学学报》 CAS 2022年第11期52-57,共6页
目的 研究分期岛状包皮瓣尿道板重建术在重度尿道下裂手术治疗中的临床效果。方法 回顾性分析2013年11月至2022年3月昆明医科大学第一附属医院治疗的重度尿道下裂患者28例临床资料。按照手术方法的不同,分为分期岛状包皮瓣尿道板重建术... 目的 研究分期岛状包皮瓣尿道板重建术在重度尿道下裂手术治疗中的临床效果。方法 回顾性分析2013年11月至2022年3月昆明医科大学第一附属医院治疗的重度尿道下裂患者28例临床资料。按照手术方法的不同,分为分期岛状包皮瓣尿道板重建术式手术组(A组)和传统分期手术(即:一期伸直阴茎,二期尿道成形术)组(B组)。比较2组患者的年龄、手术时间、出血量、术后并发症的发生率,并随访亲属对治疗的满意度。结果 分期岛状包皮瓣尿道板重建术的13例中,在首次手术时年龄2岁至34岁,尿道缺损长度3.5~6 cm;传统分期手术患者15例,第1次手术时年龄2岁至27岁,尿道缺损长度3~6 cm。2组患者的年龄、治疗时间、术中出血量差异无统计学意义(P> 0.05)。分期岛状包皮瓣尿道板重建术手术组术后2例发生尿道瘘,另1例发生阴茎头部尿道破裂。经再次尿道瘘修补/尿道成形治疗。传统分期手术组术后4例发生尿道瘘,2例尿道狭窄和尿道憩室。需经再次手术尿瘘修补术/尿道成形术,尿道扩张术治愈。分期岛状包皮板尿道板重建术组手术成功率为76.9%,传统分期手术组手术成功率为60.0%(P> 0.05)。且分期岛状包皮瓣尿道板重建术较传统分期手术术后满意度更高(P <0.05)。结论 分期岛状包皮瓣尿道板重建术已成为分期治愈尿道下裂的重要方法,对重度的尿道下裂术后安全性较好,外观比较满意,并发症发生率低,具有临床应用价值。 展开更多
关键词 尿道下裂 分期术 尿道成形术
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Preparation of ultra-broadband antireflective coatings for amplifier blast shields by a sol–gel method 被引量:1
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作者 Huai Xiong Bin Shen +4 位作者 Zhiya Chen Xu Zhang haiyuan li Yongxing Tang lili Hu 《High Power Laser Science and Engineering》 SCIE CAS CSCD 2017年第4期37-42,共6页
A type of λ/4–λ/4 ultra-broadband antireflective coating has been developed using modified low refractive silica and high refractive silica layers by a sol–gel dip coating method for amplifier blast shields of the... A type of λ/4–λ/4 ultra-broadband antireflective coating has been developed using modified low refractive silica and high refractive silica layers by a sol–gel dip coating method for amplifier blast shields of the Shen Guang Ⅱ high power laser facility(SG-Ⅱ facility). Deposition of the first layer(high refractive index silica) involves baking at 200℃ in the post-treatment step. The second layer(low refractive index, n = 1.20) uses low refractive index silica sol modified by acid catalysis. Thermal baking at temperatures no less than 500℃ for 60 min offers chemical stability, ethanol scratch resistance, and resistance to washing with water. The average residual reflection of dual-side-coated fused silica glass was less than 1% in the spectral range from 450 to 950 nm. Transmission gain has been evaluated by taking into account angular light, and the results show that the transmission gain increases with increasing light incidence. Even at 60°, the transmission spectrum of the broadband antireflective coating effectively covered the main absorption peak of Nd:glass. 展开更多
关键词 AMPLIFIER antireflective coating blast shields sol–gel ULTRA-BROADBAND
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Propagation-based incremental triangulation for multiple views 3D reconstruction 被引量:7
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作者 Wei Fang Kui Yang haiyuan li 《Chinese Optics Letters》 SCIE EI CAS CSCD 2021年第2期7-13,共7页
To balance the accuracy and efficiency in multiple-view triangulation with sequential images, a high-efficiency propagationbased incremental triangulation(INT) method, carving three-dimensional(3 D) scene points by up... To balance the accuracy and efficiency in multiple-view triangulation with sequential images, a high-efficiency propagationbased incremental triangulation(INT) method, carving three-dimensional(3 D) scene points by updating the incoming feature track one by one without iterations, is proposed. Based on the INT method, a more accurate iteration-limited INT method is also established with few iterations to bound the propagated errors, ensuring the accuracy of subsequent3 D reconstruction. Finally, experimental results demonstrate that the proposed methods can balance the efficiency and accuracy in different multiple-view INT situations. 展开更多
关键词 multiple views 3D reconstruction incremental triangulation PROPAGATION
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Post-treatment of 351 nm SiO_(2) antireflective coatings for high power laser systems prepared by the sol-gel method 被引量:2
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作者 Bin Shen Huai Xiong +5 位作者 Xu Zhang Zhiya Chen Xiangyang Pang Yajing Guo Chengjie liang haiyuan li 《Chinese Optics Letters》 SCIE EI CAS CSCD 2022年第1期89-93,共5页
Different post-treatment processes involving the use of ammonia and hexamethyldisilazane(HMDS) were explored for application to 351 nm third harmonic generation SiO_(2)antireflective(3ω SiO_(2)AR) coatings for high p... Different post-treatment processes involving the use of ammonia and hexamethyldisilazane(HMDS) were explored for application to 351 nm third harmonic generation SiO_(2)antireflective(3ω SiO_(2)AR) coatings for high power laser systems prepared by the sol-gel method.According to experimental analysis,the 3ω SiO_(2)AR coatings that were successively post-treated with ammonia and HMDS at 150℃ for 48 h and again heat-treated at 180℃ for 2 h(N/H 150+180 AR) were relatively better.There were relatively fewer changes in the optical properties of the N/H 150+180 AR coating under a humid and polluted environment,and the increase in defect density was slow in high humidity environments.The laser-induced damage threshold of the N/H 150+180 AR coating reached 15.83 J/cm;(355 nm,6.8 ns),a value that meets the basic requirements of high power laser systems. 展开更多
关键词 optical materials antireflection coatings SOL-GEL optics at surfaces laser damage thin films optical properties
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An ORMOSIL porous double-layer broadband antireflective coating
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作者 Huai Xiong Yongxing Tang +1 位作者 lili Hu haiyuan li 《Chinese Optics Letters》 SCIE EI CAS CSCD 2019年第3期91-94,共4页
A λ∕4–λ∕4 broadband antireflective(AR) coating is developed with a sol-gel dip-coating method. By adding SAR-5 organosilicon resin into a base-catalyzed silica sol top layer and treating at 300°C, a broadban... A λ∕4–λ∕4 broadband antireflective(AR) coating is developed with a sol-gel dip-coating method. By adding SAR-5 organosilicon resin into a base-catalyzed silica sol top layer and treating at 300°C, a broadband AR coating used for blast shields with a high average transmission of 99.34%(450–950 nm) and good hydrophobicity(with a water-contact angle of 119°) was obtained. After being subjected to rubbing 50 times and being maintained at a relative humidity of around 95% for 50 days, the average transmission of the coating decreased by0.29% and 0.04%, respectively. This indicates that the organically modified silica(ORMOSIL) broadband AR coating has good abrasion resistance and humidity stability. 展开更多
关键词 AN ORMOSIL POROUS DOUBLE-LAYER BROADBAND ANTIREFLECTIVE coating
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