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稀有金属材料与工程 2018年第11期47卷 3439-3443页

作者：陈树君苏珊肖珺毛羽 Anupam Vivik Glenn S.Daehn 北京工业大学汽车结构部件先进制造技术教育部工程研究中心北京100124 The Ohio State University Impulse Manufacturing LaboratoryColumbusOhio 43210USA

气化冲击焊接技术可广泛用于难以焊接成形的钛、镁和铝等有色金属材料与钢材的连接。铝箔作为气化冲击焊接过程能量转换的载体,它的工作效率对气化冲击焊接工艺起到至关重要的作用。分析了气化冲击焊接过程中能量转换的过程,采用光子多... 详细信息

气化冲击焊接技术可广泛用于难以焊接成形的钛、镁和铝等有色金属材料与钢材的连接。铝箔作为气化冲击焊接过程能量转换的载体,它的工作效率对气化冲击焊接工艺起到至关重要的作用。分析了气化冲击焊接过程中能量转换的过程,采用光子多普勒测速系统分析了3种不同厚度的铝箔在不同能量输入条件下铝箔的工作效率和对飞板与靶板碰撞速度的影响规律。结果表明,当飞板与靶板间距(碰撞角度5o)为2.5 mm时,铝箔的气化能量是影响飞板与靶板碰撞速度的关键因素。通过碰撞速度的分析可以发现,0.051 mm铝箔在输入能量小于3 kJ时效率最高,0.076 mm铝箔在3～6 kJ效率最高,6～12 kJ时,0.127 mm的铝箔可以获得最佳效率。

关键词：铝箔气化冲击焊光子多普勒测速能量转换:碰撞速度

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Sharp {111} texture in the industrial Tibearing interstitial free steel sheet

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广东有色金属学报 2005年第2期15卷 231-231页

作者： Slavov V.I. Naumova O.M. Kuznetsov V.V. Strunina L.M. Naumov A.A. X-laboratory JSC"Severstal" Cherepovets 162600 Russia X-laboratory

The high r-value and strengthening n-coefficient is an important index to evaluate the formability of the steel sheet.

关键词：钛钢结构参数机械性能

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Understanding field emission from carbon nanotubes

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广东有色金属学报 2005年第2期15卷 50-50页

作者：许宁生 State Key Lab of Optoelectronic Materials and Technologies Gungdong Province Key Laboratory of DisplayMaterials and Technologies SunYat-Sen(Zhongshan) University Guangzhou 510275 China

Carbon nanotubes have been investigated as a promising cold cathode field emission material and are identified as one of nanomaterials that will find applications in near future.

关键词：碳纳米管生产装置纳米材料散发性能

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Application of ferrous sulfate alleviates negative impact of cadmium in rice(Oryza sativa L.)

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BIOCELL 2021年第6期45卷 1631-1649页

作者： JAVARIA AFZAL XIUKANG WANG MUHAMMAD HAMZAH SALEEM XUECHENG SUN SHAHID HUSSAIN IMRAN KHAN MUHAMMAD SHOAIB RANA SHAKEEL AHMED SAMRAH AFZAL AWAN SAJID FIAZ OMAR AZIZ KASHIF ALI KUBAR SHAFAQAT ALI CHENGXIAO HU Key laboratory of Arable Land Conservation(Middle and Lower Reaches of Yangtze River) Ministry of Agriculture and Rural AffairsHuazhong Agricultural UniversityWuhan430070China Department of Soil Science Sindh Agriculture UniversityTandojam70060Pakistan College of Life Sciences Yan’an UniversityYan’an716000China College of Plant Science and Technology Huazhong Agricultural UniversityWuhan430070China Schools of Materials Science and Engineering Jiangsu UniversityZhenjiang212013China Department of Grassland Science Sichuan Agricultural UniversityChengdu611130China Instituto de Farmacia Facultad de CienciasUniversidad Austral de ChileValdivia5110566Chile Department of Plant Breeding and Genetics The University of HaripurKhyber Pakhtunkhwa22620Pakistan Department of Soil&Environmental Sciences University of Agriculture FaisalabadSub-Campus DepalpurOkaraPakistan Faculty of Agriculture Lasbela University of AgricultureWater and Marine SciencesUthal90150Pakistan Department of Environmental Sciences and Engineering Government College UniversityFaisalabad38000Pakistan Department of Biological Sciences and Technology China Medical UniversityTaichung40402Taiwan

Soil contamination with toxic heavy metals[such as cadmium(Cd)]is becoming a serious global problem due to rapid development of social ***(Fe),being an important element,has been found effective in enhancing plant tolerance against biotic and abiotic *** present study investigated the extent to which different levels of ferrous sulphate(FeSO_(4))modulated the Cd tolerance of rice(Oryza sativa L.),when maintained in artificially Cd spiked regimes.A pot experiment was conducted under controlled conditions for 146 days,by using natural soil,mixed with different levels of CdCl_(2)[0(no Cd),0.5 and 1 mg/kg]together with the exogenous application of FeSO_(4) at[0(no Fe),1.5 and 3 mg/kg]levels to monitor different growth,gaseous exchange characteristics,oxidative stress,antioxidative responses,minerals accumulation,organic acid exudation patterns of *** results depicted that addition of Cd to the soil significantly(Pnon-reducing sugar)and altered the ultrastructure of chloroplasts,plastoglobuli,mitochondria,and many other cellular organelles in Cd-stressed *** compared to those plants which were grown without the addition of Cd in the ***,Cd toxicity boosted the production of reactive oxygen species(ROS)by increasing the contents of malondialdehyde(MDA),which is the indication of oxidative stress in *** and was also manifested by hydrogen peroxide(H_(2)O_(2))contents and electrolyte leakage to the membrane bounded ***,activities of various antioxidative enzymes like superoxidase dismutase(SOD),peroxidase(POD),catalase(CAT)and ascorbate peroxidase(APX)and non-enzymatic antioxidants like phenolics,flavonoid,ascorbic acid,anthocyanin and proline contents increased up to a Cd level of 0.5 mg/kg in the soil but were significantly diminished at the highest Cd level of 1 mg/kg in the soil compar

关键词： Antioxidants Defense mechanism Heavy metals Iron Organic acids exudation

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