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Ditemukan 8 dari pencarian Anda melalui kata kunci: author="Lei Zhang"
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Chemical material basis study of Xuefu Zhuyu decoction by ultra-performance l…
Komentar Bagikan
Lei Zhang

Xuefu Zhuyu decoction, a classic prescription in traditional Chinese medicine, has been widely used in the clinical treatment of cardiovascular and cerebrovascular diseases. In order to profile the chemical material basis of this formula, an ultra-performance liquid chromatography (UPLC) coupled with quadrupole time-of-flight mass spectrometry (Q/TOF MS) method has been established for rapid se…

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ISBN/ISSN
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Deskripsi Fisik
j ournal of food and drug anal ys i s 2 3 ( 2 0 1 5 ) 8 1 1 e8 2 0
Judul Seri
j ournal of food and drug anal ys i s
No. Panggil
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Unduh MARCSitasi
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The cohomological support locus of pluri-canonical sheaves and the Iitaka fib…
Komentar Bagikan
Lei Zhang

Abstract Let albX : X → Alb(X) be the Albanese map of a smooth projective variety and f : X → Y the fibration arising from the Stein factorization of albX. For a positive integer m, if f and m satisfy two certain assumptions AS(1, 2), then the translates through the origin of all components of cohomological locus V 0(ωm/X, albX) ⊂ Pic0(X) generate I∗Pic0(S), where I : X → S denot…

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ISBN/ISSN
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Deskripsi Fisik
J. London Math. Soc. (2) 90 (2014) 592–608
Judul Seri
J. London Math. Soc.
No. Panggil
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Unduh MARCSitasi
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A review of anode catalysis in the direct methanol fuel cell
Komentar Bagikan
Lei ZhangHansan LiuChaojie SongJiujun ZhangHaijiang WangDavid P. Wilkinson

Abstract In this paper, more than 100 articles related to anode catalysts for the direct methanol fuel cell (DMFC) are reviewed, mainly focusing on the three most active areas: (1) progress in preparation methods of Pt–Ru catalysts with respect to activity improvement and utilization optimization; (2) preparation of novel carbon materials as catalyst supports to create a highly dispersed and…

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ISBN/ISSN
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Deskripsi Fisik
Journal of Power Sources 155 (2006) 95–110
Judul Seri
Journal of Power Sources
No. Panggil
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Unduh MARCSitasi
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Enantioselective epoxidation of β-methylstyrene catalyzed by immobilized Mn(…
Komentar Bagikan
Lei ZhangCan LiHaidong ZhangYi Meng WangGijsbert GerritsenHendrikus C.L. AbbenhuisRutger A. van Santen

Abstract. Mesoporous silica-supported chiral Mn(salen) catalysts were prepared and evaluated in the heterogeneous asymmetric epoxidation of β-methylstyrene with NaClO as an oxidant. Homogeneous and immobilized Mn(salen) catalysts exhibit similar cis/trans ratios and ee values when trans-substrate is used but different cis/trans ratios and ee values when cis-substrate is used. The productio…

Edisi
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ISBN/ISSN
00219517
Deskripsi Fisik
Journal of Catalysis 256 (2008) 226–236
Judul Seri
Journal of Catalysis
No. Panggil
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Phosphate immobilization from aqueous solution by fly ashes in relation to th…
Komentar Bagikan
Jiangang ChenHainan KongDeyi WuXuechu ChenDalei ZhangZhenhua Sun

Abstract. Phosphate sorption capacities of 15 Chinese fly ashes were determined and related to their composition. The data of P sorption were best fitted to Langmuir equation, and the calculated sorption maxima of phosphate (Qm) ranged from 5.51 to 42.55 mg/g. The Qm value showed a significantly positive correlation with total Ca content (r = 0.9836**) and total Fe content (r = 0.8049**), but …

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ISBN/ISSN
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Deskripsi Fisik
Journal of Hazardous Materials B139 (2007) 293–300
Judul Seri
Journal of Hazardous Materials B
No. Panggil
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Unduh MARCSitasi
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Preparation, characterization, and catalytic properties of NdSrCu1-xCoxO4-d…
Komentar Bagikan
Lei ZhangJiguang DengHongxing DaiChak Tong AuHong He

Abstract. Single-phase perovskite-like oxides NdSrCu1-xCoxO4-d and Sm 1.8Ce0.2Cu1-xCoxO4+d (x = 0, 0.2, and 0.4) were prepared using the citric acid complexing method coupled with ultrasonic treatment. We characterized the materials by a number of analytical techniques. It was found that the NdSrCu1-xCoxO4-d and Sm 1.8Ce0.2Cu1-xCoxO4+d catalysts possess T and T0 crystal structures, re…

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ISBN/ISSN
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Deskripsi Fisik
Applied Catalysis B: Environmental 89 (2009) 87–96
Judul Seri
Applied Catalysis B: Environmental
No. Panggil
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Unduh MARCSitasi
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Binary Cr–Mo oxide catalysts supported on MgO-coated polyhedral three-dimen…
Komentar Bagikan
Lei ZhangJiguang DengHongxing DaiChak Tong Au

Abstract Binary Cr–Mo oxide catalysts (denoted as Cr(x)Mo(y), x/y = nominal Cr/Mo molar ratio) supported on MgO-coated polyhedral three-dimensional (3D) mesoporous SBA-16 (MS) were fabricated for the oxidative dehydrogenation of iso-butane. The materials were characterized by a number of techniques for the establishment of the relationships between physicochemical properties and catalytic…

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ISBN/ISSN
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Deskripsi Fisik
Applied Catalysis A: General 354 (2009) 72–81
Judul Seri
Applied Catalysis A: General
No. Panggil
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Unduh MARCSitasi
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AtECB1/MRL7, a Thioredoxin-Like Fold Protein with Disulfide Reductase Activit…
Komentar Bagikan
Qing-Bo YuQian MaMeng-Meng KongTuan-Tuan ZhaoXiao-Lei ZhangQue ZhouChao HuangKang ChongZhong-Nan Yang

Plastid-encoded RNA polymerase (PEP) is closely associated with numerous factors to form PEP complex for plastid gene expression and chloroplast development. However, it is not clear how PEP complex are regulated in chloroplast.Here, one thioredoxin-like fold protein, Arabidopsis early chloroplast biogenesis 1 (AtECB1), an allele of MRL7, was identified to regulate PEP function and chloroplast …

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ISBN/ISSN
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Deskripsi Fisik
Molecular Plant. Volume 7. Number 1. Pages 206–217. January 2014
Judul Seri
Molecular Plan
No. Panggil
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Unduh MARCSitasi
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