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加氢脱金属工序是加氢处理工艺中的重要一环,而加氢脱金属催化剂的开发利用更是提高渣油加氢处理质量的重要手段。鉴于目前工业渣......
提要本文从声学和感知两个方面对汉日辅音语音相似度进行了研究。在此基础上，考察了日本学习者对汉语／ts，ts^h，s／／t ，t ^h， ／／t ,t ^h， ／三组辅......
A hybrid monolithic column based on flower-shaped zeolitic imidazolate framework for efficient capil
A novel flower-shaped zeolitic imidazolate framework (ZIF) doped organic-inorganic hybrid monolithic column (ZIF-HMC) wa......
本工作研究了添加0.18％的V对S30432奥氏体耐热钢的影响.对比了不含V和含V的S30432钢650℃持久断裂时间,测量了固溶态和持久断裂后试......
Broad-band phase retrieval method for transient radial shearing interference using chirp Z transform
The transient radial shearing interferometry technique based on fast Fourier transform(FFT)provides a means for the meas......
The present article develops a model initially published in ref. [1]. It is a quasi-classical quantum model of composite......
解开大蒜的药理学行动，简单 thio 混合物， z-ajoene，从新鲜 cloves 被净化。三根肿瘤房间线在不同 concentrationsin vitro 和词法变......
在在整个 cocentration 范围的 25 掳 C 的 ZnCl2/ZnAc2/ZnSO4-Met-H2O 系统的溶解度性质被阶段平衡方法调查了。结果显示 ZnAc2 ......
Nickel doped zinc oxide nanoparticles produced by hydrothermal decomposition of nickel-doped zinc hy
Zinc hydroxide nitrate,an anionic exchanger layered material,undoped as well as doped with 2-10% nickel,was synthesized ......
以取代胺为原料合成6种N~4-取代氨基脲,然后与5种3-(1-羟基亚乙基)-吡咯烷-2,4-二酮类化合物反应合成了22种新型缩氨基脲类衍生物,......
The influence of molar ratios of Ce/Zr on the selective catalytic reduction of NO_x with NH_3 over F
A series of CexZr1-xO2(0 B x B 1)with different molar ratios of Ce/Zr were syhthesized via coprecipitation method,and Fe......
Scandia stabilized zirconia powder(Sc SZ) was first synthesized by a microwave-hydrothermal method. The crystalline and ......
A new Zn(Ⅱ) complex,[ZnL_2Br_2](L = triadimenol) was synthesized by the reaction of ZnBr_2 with the commercial fungicid......
Asacred fire which symbolizes “equality, participation, friendship, progress” was lighted at the Beijing Workers’ St......
本文通过对乙烯基磷酸酯杀虫剂灭蚜净的合成,探讨了制备方法、催化剂以及溶剂性质对产物几何异构体比例的影响,从而为灭蚜净几何异......
Preliminary Analysis of Some Chemically Determined Data from the Compressive Fault Zone at Dayu, Jia
Discussed in this paper are the relationship between the compressive fault zone and minera-lization, and the regulariti......
The northern slope of Gaoyou sag develops diabase intrusive body generally. The relationship amongdiabase invasion perio......
利用循环群Z_v上的连续区组轨道构作了(d,r,z]-析取矩阵并在此基础上通过添加列分析了它们的性质.
The (d, r, z] -extraction ma......
[目的]评价颈前路零切迹椎间融合器(Zero-profile interbody fusion device,Zero-P)治疗多节段颈椎病伴后凸畸形的临床疗效,探讨其......
To explore the characteristics of plant calcium(Ca) fraction, we analyzed 91 plant species in the Ningxia Habahu Nationa......
能源和环境问题是制约人类延续和发展的首要问题,高效便宜的能源存储和转换装置吸引着广泛注意。基于便携式,功率密度高,无污染等,......
Continuous nitrogen-doped carbon nanotube matrix for boosting oxygen electrocatalysis in rechargeabl
Developing robust oxygen electrocatalyst with high-performance is very significant for practical rechargeable Zn-air bat......
Suppressing by-product via stratified adsorption effect to assist highly reversible zinc anode in aq
The development of promising zinc anodes mainly suffers from their low plating/stripping coulombic efficiencies when usi......
安阳人在读声母是zh、ch、sh、和z、c、s的字时，极易混淆。这是困扰安阳人学习和推广普通话的一大障碍。利用古今音变规律，并借助形......
