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外源施用橙皮苷对甜菜幼苗耐盐性的调控作用研究

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中国甜菜糖业 2024年第1期 15-20,48页

作者：赖豪亮李俊良李楠温州大学生命与环境科学学院温州325000

对甜菜根系代谢物的研究发现,盐胁迫显著诱导根中橙皮苷的累积.本研究进一步探究外源施用该化合物对甜菜幼苗耐盐性的影响.研究结果显示,外源橙皮苷削弱了盐胁迫对植株叶绿素含量的功能的损伤、帮助幼苗维持光合作用效率、促进幼苗生物... 详细信息

对甜菜根系代谢物的研究发现,盐胁迫显著诱导根中橙皮苷的累积.本研究进一步探究外源施用该化合物对甜菜幼苗耐盐性的影响.研究结果显示,外源橙皮苷削弱了盐胁迫对植株叶绿素含量的功能的损伤、帮助幼苗维持光合作用效率、促进幼苗生物量增长;此外,添加橙皮苷后幼苗脯氨酸、甜菜碱、可溶性糖的含量升高,POD、SOD、CAT的活性增强.这些生理生化指标的改善极大的提高了甜菜幼苗的耐盐性.本研究证实,橙皮苷可作为一种有效的外源施用化合物,用于提高甜菜幼苗的耐盐性.

关键词：橙皮苷盐胁迫甜菜

NUMERICAL STUDY OF 3D EXPLOSION BUBBLES ADJACENT TO STRUCTURES

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Journal of Hydrodynamics 2002年第4期14卷 66-72页

作者： li, Wan-Ping li, liang-jun Dept. of Mech. Huazhong Univ. of Sci. and Technol. Wuhan 430074 China

The bejavior of a bubble near a rigid structure was considered by using the local surface fitting method and the jet prediction method. The convergence difficulty caused by the abnormality of the elements was overcome. The flow was numerically simulated by using the boundary-integral method on the assumption that the water was inviscid and incompressible, and the bubble gas obeyed the isentropic rule. The evolution of the bubble was investigated by means of the mixed Euler-Lagrange method, and the Runge-Kutta method. The important behavior of the bubble, such as migration and jetting, was analyzed in several examples. The solution of one period of the explosion bubble was obtained.

关键词： Bubbles (in fluids) Shock waves Structures (built objects)

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矿山机械设备故障诊断与预防技术研究

世界有色金属 2024年第11期 31-33页

作者：李良军邓智耀邓君湖南柿竹园有色金属有限责任公司湖南郴州423000

随着采矿业总体规模的不断扩张,在引进新设备和新技术时,为采矿设备的发展提供了基本支持。本文主要分析诊断矿山机械设备的有效方法,基于有针对性的预防技术,更加安全、系统的管理矿山机械设备,既要保证机械设备熟练操作,还应定期组织... 详细信息

随着采矿业总体规模的不断扩张,在引进新设备和新技术时,为采矿设备的发展提供了基本支持。本文主要分析诊断矿山机械设备的有效方法,基于有针对性的预防技术,更加安全、系统的管理矿山机械设备,既要保证机械设备熟练操作,还应定期组织保养、维护等工作的开展。通过及时诊断机械设备可能出现的故障问题,在预防的同时,提高机械性能,延长矿山机械设备的使用周期,为维护采矿作业的经济效益提供基本保障。

关键词：矿山生产机械设备故障诊断预防技术

Application of remote-sensing-image fusion to the monitoring of mining induced subsidence

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Journal of China University of Mining and Technology 2008年第4期18卷 531-536页

作者： li liang-jun WU Yan-bin Department of Geology Northwest University Xi＇ an Shaanxi 710072 China public Geological Survey Management Center of Anhui Province Hefei Anhui 230001 China State Key Laboratory of Coal Resources and Safe Mining China University of Mining ＆ Technology Beijing 100083 China School of Business Administration Hebei University of Economic and Business Shijiazhuang Hebei 050016 China

We discuss remote-sensing-image fusion based on a multi-band wavelet and RGB feature fusion method. The fused data can be used to monitor the dynamic evolution of mining induced subsidence. High resolution panchromatic image data and multi-spectral image data were first decomposed with a multi-ary wavelet method. Then the high frequency components of the high resolution image were fused with the features from the R, G, B bands of the multi-spectral image to form a new high frequency component. Then the newly formed high frequency component and the low frequency component were inversely transformed using a multi-ary wavelet method. Finally, color images were formed from the newly formed R, G, B bands. In our experiment we used images with a resolution of 10 m (SPOT), and TM30 images, of the Huainan mining area. These images were fused with a trinary wavelet method. In addition, we used four indexes—entropy, average gradient, wavelet energy and spectral distortion—to assess the new method. The result indicates that this new method can improve the clarity and resolution of the images and also preserves the information from the original images. Using the fused images for monitoring mining induced subsidence achieves a good effect.

关键词： remote sensing image image mosaic mining subsidence multi-band wavelet

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开放与镜下阔筋膜桥接修复巨大肩袖撕裂

中国矫形外科杂志 2024年第5期32卷 472-476页

作者：方潇翔唐科兴李宗超戴傲南陈锟高鹏李良军南华大学附属长沙中心医院湖南长沙410000

[目的]探究自体阔筋膜补片桥接治疗不可修复巨大肩袖撕裂的中期临床疗效。[方法]回顾性分析2017年1月—2019年12月行自体阔筋膜桥接治疗不可修复巨大肩袖撕裂12例患者的临床资料,根据医患沟通结果,6例采用开放手术(开放组),6例采用关节... 详细信息

[目的]探究自体阔筋膜补片桥接治疗不可修复巨大肩袖撕裂的中期临床疗效。[方法]回顾性分析2017年1月—2019年12月行自体阔筋膜桥接治疗不可修复巨大肩袖撕裂12例患者的临床资料,根据医患沟通结果,6例采用开放手术(开放组),6例采用关节镜下置入并缝合阔筋膜补片(镜下组)。比较两组患者临床及影像结果。[结果]所有患者手术均顺利完成,开放组手术时间[(120.0±6.6)min vs(174.1±7.3)min,P0.05)。影像方面,两组患者肩峰下间隙(Subacromial space,SAS)较术前显著增加(P0.05)。MRI显示阔筋膜补片与冈上肌腱残端及肱骨大结节愈合良好。[结论]阔筋膜补片桥接治疗不可修复巨大肩袖撕裂有着良好的中期疗效,开放组与镜下组的中期疗效无明显差异。

关键词：巨大肩袖撕裂自体阔筋膜补片桥接开放手术关节镜术

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机电一体化技术在矿山机械中的应用研究

世界有色金属 2024年第11期 16-18页

作者：邓智耀谢锋辉李良军湖南柿竹园有色金属有限责任公司湖南郴州423000

就目前而言,机电一体化技术已经在矿山机械中得到了广泛的应用。机电一体化技术的引入以及运用使得矿山开采企业的机械制造模式出现了改善。但与此同时,也对矿山开采企业提出了更高的技术要求。在实践中,矿山开采企业应当建立与时俱进... 详细信息

就目前而言,机电一体化技术已经在矿山机械中得到了广泛的应用。机电一体化技术的引入以及运用使得矿山开采企业的机械制造模式出现了改善。但与此同时,也对矿山开采企业提出了更高的技术要求。在实践中,矿山开采企业应当建立与时俱进的意识,秉持创新精神,不断打造高素质的员工团队,只有这样才能让机电一体化技术充分发挥其应用价值。同时,还应当加大对机电一体化技术的资源投入力度,为该技术的应用创造相应的条件。基于此,本文将以机电一体化技术作为研究对象,针对其在矿山机械中的应用展开探讨,旨在为我国矿山开采企业生产效率、生产质量的提升提供保障,从而促进矿山开采行业的长远发展,更好地满足社会对矿产资源的需求。

关键词：机电一体化矿山机械应用矿山开采设备

Optimal Model Average Prediction in Orthogonal Kriging Models

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Journal of Systems Science & Complexity 2024年第3期37卷 1080-1099页

作者： WANG jun HE Jiabei liang Hua li Xinmin School of Mathematics and Statistics Qingdao UniversityQingdao 266071China Department of Statistics George Washington UniversityWashington DC 20052USA

The main objective of this paper is to consider model averaging methods for kriging *** paper proposes a Mallows model averaging procedure for the orthogonal kriging model and demonstrate the asymptotic optimality of the model averaging estimators in terms of mean square *** studies are conducted to evaluate the performance of the proposed method and compare it with the competitors to demonstrate its *** authors also analyse a real dataset for an illustration.

关键词： Asymptotic optimality Mallows criterion optimal model averaging orthogonal kriging model

过表达甜菜BvALKBH10B基因对拟南芥耐盐性的影响

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中国甜菜糖业 2024年第1期 1-5页

作者：王家园陈洁婷李俊良温州大学生命与环境科学学院温州325000

RNA上的m6 A(N6-甲基腺苷)修饰是一种重要的表观遗传修饰,以被证实参与调控植物-环境相互作用,在植物适应环境方面扮演着关键角色.先前的研究初步证实甜菜RNA去甲基化酶基因BvALKBH10B可能在m6A介导的盐胁迫应答过程中发挥重要调控作用... 详细信息

RNA上的m6 A(N6-甲基腺苷)修饰是一种重要的表观遗传修饰,以被证实参与调控植物-环境相互作用,在植物适应环境方面扮演着关键角色.先前的研究初步证实甜菜RNA去甲基化酶基因BvALKBH10B可能在m6A介导的盐胁迫应答过程中发挥重要调控作用.本研究通过构建过表达BvALK-BH10B基因的转基因拟南芥对该基因的耐盐功能进行评估.研究结果有助于更好的理解甜菜耐盐性的表观遗传机制,并为耐盐甜菜品种的改良提供优秀的候选基因.

关键词：甜菜拟南芥 BvALKBH10 B基因盐胁迫

Effect of N Fertilization on Grain Yield of Winter Wheat and Apparent N Losses

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Pedosphere 2006年第6期16卷 806-812页

作者： CUI Zhen-ling CHEN Xin-Ping li jun-liang XU Jiu-Fei SHI li-Wei ZHANG Fu-Suo College of Resources and Environmental Science China Agricultural University Beijing 100094 （China） Department of Agronomy Laiyang Agricultural College Laiyang 265200 （China）

Excessive nitrogen (N) fertilizer application to winter wheat is a common problem on the North China Plain. To determine the optimum fertilizer N rate for winter wheat production while minimizing N losses, field experiments were conducted for two growing seasons at eight sites, in Huimin County, Shandong Province, from 2001 to 2003. The optimum N rate for maximum grain yield was inversely related to the initial soil mineral N content (Nmin) in the top 90 cm of the soil profile before sowing. There was no yield response to the applied N at the three sites with high initial soil mineral N levels (average 212 kg N ha-1). The average optimum N rate was 96 kg N ha-1 for the five sites with low initial soil Nmin (average 155 kg N ha-1) before sowing. Residual nitrate N in the top 90 cm of the soil profile after harvest increased with increasing fertilizer N application rate. The apparent N losses during the wheat-growing season also increased with increasing N application rate. The average apparent N losses with the optimum N rates were less than 15 kg N ha-1, whereas the farmers' conventional N application rate resulted in losses of more than 100 kg N ha-1. Therefore, optimizing N use for winter wheat considerably reduced N losses to the environment without compromising crop yields.

关键词： apparent N losses,optimum N rate residual soil nitrate N soil mineral N winter wheat yield