Results 21 to 30 of about 68,199 (213)
A new disease resistance, early ripening tomato variety – Xia Fen (pink colour tomato) [PDF]
, 1995 摘要利用黄粉选6 株系作母本, 8512 作父本配制而成的一代杂种一霞粉, 熟期较对 照苏抗9 号早3 一5天, 抗烟草花叶病毒病, 早熟、丰产, 每66.7m, 早期产量263kg, 总产量4436kg。果实圆整, 品质好, 单果重150 一1809, 适宜保护地早熟栽培及春秋季露地 栽培。 现已在江苏 安徽、山东、浙江、天津、江西、上海、湖北等省市大面积推广。关键词番茄; 霞粉 ...
Long, M, Lu, C, Xu, H, Yang, R, Yu, W
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Rare Metals, EarlyView.ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang +7 more
wiley +1 more source
Zhongguo youzhi为选择更适宜的食用植物油中棉籽油掺假鉴别方法，分别采用3种方法（基于理化性质分析的哈尔芬试验、基于脂肪酸成分分析、基于特异性标志物苹婆酸测定）对新疆7种食用植物油中棉籽油掺假进行鉴别。结果表明：哈尔芬试验判断食用植物油中是否掺假棉籽油时，可能会存在假阴性情况，该试验仅能对棉籽油作简单的定性判定，不能通过显色的深浅判断棉籽油的掺假比例；基于脂肪酸成分分析法掺假鉴别，不同食用植物油存在区别，其中葵花籽油、菜籽油、红花籽油可通过棕榈酸含量变化，亚麻籽油可通过亚油酸含量变化，判定棉籽油掺假量在10%及以上油样 ...
赵丽萍，高鑫 ZHAO Liping, GAO Xin
doaj +1 more source
Comparison of fertilizer-effect models on winter wheat response to nitrogen and phosphorus fertilizers in saline soils in the Yellow River Delta [PDF]
, 2017 通过大田试验, 研究了黄河三角洲盐碱土地区冬小麦合适的肥料效应模型。在冬小麦生长季设置4种不同的氮磷肥用量, 根据“3414”试验设计8 种不同的肥效试验处理, 以探讨线性加平台、一元二次、平方根和二元二次4 种不同模型的拟合效果。结果显示, 4 种肥料效应模型的拟合结果经检验都达到极显著水平 (P<0.01)。在一元肥料效应模型中, 氮磷一元二次模型拟合效果最好, 最高收益分别为7 448.3 元·hm-2 和7 357.7 元·hm-2 ...
付希强 +8 more
core +1 more source
Rare Metals, EarlyView.ABSTRACT A major challenge in fabricating eutectic NiTiNb alloys is the incomplete melting of Nb due to its much higher melting point than the NiTi matrix. In this work, a novel electron‐beam freeform additive manufacturing strategy is developed to eliminate unmelted Nb particles and achieve a fully eutectic structure through independent dual‐wire ...
Qing‐Da Zhang +9 more
wiley +1 more source
Experimental Study on Multi-Jets Electrospinning via Screw Electrode [PDF]
, 2016 电纺纳米纤维在过滤材料、传感器、生物医疗、能量存储等领域都有着极其广阔的应用前景，而批量制备纳米纤维是其从实验室走向市场的关键。本文中提出一种基于螺杆电极的多射流静电纺丝装置，研究了多射流喷射调控规律，开发了带自清洁功能的储液滑块以实现纺丝溶液的持续、均匀供给，实现了纳米纤维的批量化稳定喷射。 通过ANSYS仿真分析了螺杆电极表面电场分布，完成带螺杆电极多射流静电纺丝平台机械结构与电气控制系统的设计开发；利用螺杆带动储液滑块往复运动，实现纺丝溶液的均匀涂布与持续供液 ...
陈新敏
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Rare Metals, EarlyView.ABSTRACT Silicon oxide (SiO) is becoming the main anode for high‐energy lithium‐ion batteries because of its ease of manufacture, outstanding cycling stability, and high capacity. However, low initial Coulombic efficiency (ICE) caused by the irreversible reaction of silica, as the main issue, strictly limits its commercial applications.
Hailong Mei +5 more
wiley +1 more source
Shuitu Baochi Xuebao, 2023 为准确表征祁连山国家公园产水量时空差异性,探究产水量影响因素和驱动机制。基于降水量、参考作物蒸散量、土壤深度、根系深度和土地利用类型等参数,利用InVEST模型可视化祁连山国家公园1990-2018年产水量时空格局,使用地理探测器并结合情景模拟方法,评估和量化气候、土地利用、植被、地形等因子对祁连山国家公园产水量空间异质性和产水量变化的影响。结果表明:(1)1990-2018年研究区产水量以0.56×108 m3/a的速度显著增加,在空间上呈自西向东递增趋势;(2)耕地和林地产水深度最大 ...
万志纲 +4 more
doaj
The Design and Implementation of Coal Output Metrology Management System Based on Internet of Things [PDF]
, 2015 物联网技术随着近年的发展已逐步运用到各类工业生产环境中，本文针对国内外煤炭产量计量行业的现状、缺陷及发展，提出将视频监控同煤矿产量实时计量相结合的物联网技术方案，解决了类似产量数据无法快速汇总，人工操作易误差以及各种违规操作无法现场还原等缺陷。 针对这些问题，为了提高煤炭计量技术效率，根据相关标准设计了“基于物联网的煤炭计量系统”。系统以物联网技术为基础，利用VisualC++软件开发平台与MFC基础库辅助开发了一套界面友好、操作简单、功能完备的煤炭计量系统软件 ...
赵理
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Rare Metals, EarlyView.ABSTRACT Fluxgate sensors with Co‐rich amorphous microwires, widely used for their low noise in magnetic field measurements, encounter significant challenges in high‐temperature environments such as well drilling and geological exploration. Prolonged thermal aging degrades the performance of Co‐rich amorphous microwires, resulting in increased noise ...
Lining Pan +10 more
wiley +1 more source