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[期刊论文] 作者：秦丹,魏晓玲,,
来源：现代教育技术 年份：2009
戴维·梅里尔教授是教育技术领域的著名学者,第二代教学系统设计的领军人物。文章回顾了梅里尔教授40余年研究工作的轨迹,对其研究成果进行梳理和评述,以期更深入地了解梅里...
[期刊论文] 作者：David Maitland,笛西,,
来源：影像视觉 年份：2009
职业自然摄影师David Maitland有着令人羡慕的才华,他的摄影作品总能呈现生物的别样风采。...Professional nature photographer David Maitland has the enviable talent of...
[会议论文] 作者：MingyuWang;XuewenWang;ChaolongXiao;,
来源：第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg 年份：2009
Stone coal is carbonaceous shale which contains vanadium and small quantity molybdenum.During the acidolysis...of stone coal, vanadium and molybdenum can be l...
[会议论文] 作者：SisiLong;GuofanZhang;QimingFeng;LemingOu;YipingLu;,
来源：第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg 年份：2009
Stone coal ore is a carbonaceous shale which containing vanadium.In the process of leaching vanadium...from roasted stone coal with NaOH solution, besides van...
[会议论文] 作者：YanggeZhu;QimingFeng;GuofanZhang;DongshengHe;YipingLu;LemingOu;,
来源：第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg 年份：2009
Vanadium-bearing stone coal is a type of carbonaceous shale with low calorific value.In China, the...gross reserve of vanadium in stone coal is 118 million to...
[期刊论文] 作者：WANG Mingyu,XIAO Liansheng,LI Qinggang,WANG Xuewen,XIANG Xiaoyan,
来源：稀有金属（英文版） 年份：2009
The effects of roasting, mass ratio of H2SO4 to stone coal, leaching temperature, liquid-to-solid ratio..., grinding fineness of stone coal, and two-stage counter-...
[期刊论文] 作者：,
来源：Rare Metals 年份：2009
The effects of roasting, mass ratio of H2SO4 to stone coal, leaching temperature, liquid-to-solid ratio..., grinding fineness of stone coal, and two-stage counter-...
[会议论文] 作者：XiangyangChen;XinzheLan;HongzhouMa;QiuliZhang;,
来源：第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg 年份：2009
Stone coal is an important vanadium mining resource widely used in industry.Vanadium pentoxide is directly...extracted from the stone coal by roasting with so...
[期刊论文] 作者：,
来源：风采 年份：2009
David Yurman是国际享负盛名的美国珠宝品牌。品牌于1980年由两位艺术家David及Sybil Yurman创立,灵感源自卓越工匠技艺及传统文化的创新,揉合了艺术、时装和珠宝的元素。品...
[会议论文] 作者：ZhiganDeng;ChangWei;GangFan;MintingLi;CunxiongLi;,
来源：第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg 年份：2009
A new technology on vanadium extraction from stone-coal by sulfuric acid leaching under pressure was...introduced in this paper.The mineralogy of the stone-co...
[期刊论文] 作者：,
来源：新潮电子 年份：2009
Jabra STONE独一无二的新造型，将风格与功能融合为一体，摒弃标准面部麦克风，让麦克风远离用户脸部，可优雅地置于耳后。...而且，Jabra STONE带有圆润的无线便携式充电器，其外形有如设计紧凑的耳机装置盒，可随身携带，只需将耳机插上充电器，用户即可随时随地进行充电。...在内涵方面，Jabra STONE拥有新一代创新降噪技术——NoiseBlackoutExtreme，可在消除噪音与提供自然音效...
[期刊论文] 作者：,
来源：China & the World Cultural Exchange 年份：2009
From January 24 to February 14, 2009, an exhibition oncarved stone piers from Beijing and Tianjin was...
[期刊论文] 作者：,
来源：新潮电子 年份：2009
Jabra STONE独一无二的新造型,将风格与功能融合为一体,摒弃标准面部麦克风，让麦克风远离用户脸部,可优雅地置于耳后。而且,Jabra STONE带有圆润的无线便携式充电器，其外形有如...
[期刊论文] 作者：Zheng Yanbin,Zhang Chunmei,Jia,
来源：金刚石与磨料磨具工程 年份：2009
This paper presents a new kind of CVD diamond graver for stone machining....
[期刊论文] 作者：,
来源：影像视觉 年份：2009
David的《老顽童》系列作品用一些玩世不恭的手法赞颂了衰老的主题，一系列略显怪诞的人物照片通过匪夷所思的场景表现出了老人们依然年轻的心。...
Effect of stone composition,color,size,impaction and location on the efficacy of pneumatic ureteroli
[期刊论文] 作者：Siavash Falahatkar Gholamreza,
来源：海南医学院学报 年份：2009
Objective:Assessment of the relationship between stone location,composition,color,size and impaction...
Effect of stone composition,color,size,impaction and location on the efficacy of pneumatic ureteroli
[期刊论文] 作者：Siavash Falahatkar,Gholamreza Mokhtari,Zahra Panahandeh,Sadi Pourjafar,Sara Nikpour,Marzieh Akbarpour,,
来源：海南医学院学报 年份：2009
Objective:Assessment of the relationship between stone location,composition,color,size and impaction...
Effect of stone composition,color,size,impaction and location on the efficacy of pneumatic ureteroli
[期刊论文] 作者：,
来源：海南医学院学报 年份：2009
Objective:Assessment of the relationship between stone location,composition,color,size and impaction...
[会议论文] 作者：Sisi Long,Guofan Zhang,Dongsheng He,Qiming Feng,Jie Deng,Yangge Zhu,
来源：第五届国际湿法冶金学术会议(5th International Conference on Hydrometallurg 年份：2009
predominantly extracted from titanium magnetite ores and the resulting vanadium slag.However, in China, stone...
Hybrids between olive flounder Paralichthys olivaceus and stone flounder Kareius bicoloratus: karyot
[期刊论文] 作者：尤锋,王伟,徐冬冬,朱香萍,倪静,吴志昊,徐永立,王新成,张培军,,
来源：Chinese Journal of Oceanology and Limnology 年份：2009
The hybrid between olive flounder Paralichthys olivaceus and stone flounder Kareius bicoloratus was produced...
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