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Based on the analysis theory of random energy of train derailment, an analysis theory of random energy of train derailme......
The changeover initiated by digital media has become a powerful engine for the transformation of Chinese literature in t......
We studied the dynamic fracture mechanical behavior of rock under different impact rates. The fracture experiment was a ......
The goal of this study is to provide information on the process of pothole growth on a gorge streambed.Pothole geometrie......
Depressive symptoms are very common in chronic conditions. This is true so for neurodegenerative diseases. A number of p......
<正> Under the catalysis of several transition metal halides, 1,5-cyclooctadiene usually undergoes the ring opening poly......
The Mendeleev periodic table of atoms is one of the most important principles in natural science. However, there is shor......
Free radical fluoroalkylation of terminal alkenes and alkynes with iododifluoromethanesulfonamides has been successfully......
Synthesis and characterization of carbon-bridged bis(phenolate) lanthanum alkoxides and their cataly
Four lanthanum alkoxides stabilized by a carbon-bridged bis(phenolate) ligand were synthesized and their catalytic behav......
Sensitive detection of DNA methyltransferase activity based on rolling circle amplification technolo
This work develops a fluorescence approach for sensitive detection of DNA methyltransferase activity based on endonuclea......
The activation energy is the minimum amount of energy required to initiate a reaction.It is one of the important indexes......
PLASMA MODIFICATION OF POLYPROPYLENE SURFACES AND GRAFTING COPOLYMERIZATION OF STYRENE ONTO POLYPROP
The surface of polypropylene(iPP) is modified with glow discharge plasma of Ar,so that the modified surfaces of iPP film......
Multiarm Star Poly(ε-caprolactone) with Hyperbranched Polyamidoamine as Core Capable of Selective Ac
Hyperbranched polyamidoamines(HPAs) were directly employed as macroinitiators to initiate the Sn(Oct)2 catalyzed ring-op......
Thioxanthone-based N-phthalimidoamino acid ammonium salt(thioxanthen-DBU) as a photocaged base was synthesized and chara......
研究了可见光诱导苄基硅烷合成苄醚的方法,苄基硅烷与醇的醚化反应以Ru(bpy)_3[PF_6]_2作为光催化剂,Na_2S_2O_8作为氧化剂,CuCl作......
Most workplace talk in fact falls on a continuumbetween core business talk and phatic communion(or small talk). Core bu......
Structure Evolution Mechanism of Poly(acrylonitrile/itaconic acid/acrylamide) during Thermal Oxidati
Polyacrylonitrile(PAN) polymers with different compositions were prepared by an efficient aqueous free-radical polymeriz......
Combining photo-cleavable and hydrogen-abstracting groups in quinoxaline with thioether bond as hybr
We synthesized four diphenylquinoxaline derivatives(SQs) with phenyl-thioether units, which combine photo-cleavable and ......
The nucleating, growing and cracking of hydrogen blister have been investigated experimentally and theoretically. The re......
According to Tianjin Daily,charity organizations in Tianjin will initiate 12 key projects to help the poor and the needy......
在实际的比赛中。有不可替代的使用价值。It is irreplaceable in actual match。①irreplaceable:形容词,不能替代的、不能恢复......
A new method of graft copolymerization of acrylamide (AAM) on poly(ether-urethane) (PEU) which was prepared from poly(t......
Iwork as sales promoter of a special product--Yantai City along China’s east coast. My job is to connect Yantai with t......
Sj?gren’s syndrome(SS) is a systemic autoimmune disease that affects primarily the lacrimal and salivary glands. In add......
(-)-curdione,the antipode of the antitumor principle of Chinese herb Curcuma aromticaSalisb.was synthesized from(-)-car......
The sulfinatodeiodination reagent Ce~(4+)-NaHSO_3 was shown to be able to initiate theaddition of perfluoroalkyl iodide......
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Mass spectrometry of maytansinoids——A study on the fragmentation mechanism and identification of syn
Natural maytansinoids and their synthetic intermediates (1-9) were studied by meansof mass spectrometry upon electron i......
Proper addition of 0.002 wt-% Mg to cast Fe_3Al alloy may obviously improve the room andhigh temperature tensile proper......
One step graft copolymerization of acrylic acid and sodium styrene sulfonate onto high-density polye
High-density polyethylene (HDPE) films were irradiated by 60Co gamma ray with a dose of 100 kGy in air and then immersed......
The ring opening polymerization of 2,2-dimethyltrimethylene carbonate (DTC) initiated by single component of tris(2,6-di......
The relationship between α and △Trel is investigated, where α is a factor that depends on the structure of primary p......
In situ tensile tests in a transmission electron microscope (TEM) show that dislocations emitted from a mode II crack ti......
From the ethanolic extract of the whole plant of Hemistepta lyrata Bunge., a new lignan, named hemislin B glucoside, has......
“Living”/controlled radical copolymerization of N-phenylmaleimide and styrene using Fréchet-type den
Polyarylether dendrons as macroinitiators for the “living”/controlled free radical copoly-merization of N-phenylmaleim......
Synechocystis sp. PCC 6803 cell growth and poly β hydroxybutyrate (PHB) biosynthesis were studied in the presence ......
The threshold of a laser-induced breakdown of air is determined experimentally and theoretically. We find that the ioniz......
The interaction of water vapor and oxygen with TiAI-based alloy has been studied with Auger electron spectroscopy and X......
Conceived as countering market outcomes,British planning focuses on the development and design of land use and the built......
How to improve the performance of the plasma actuators is a problem that is of great interest to many scientific researc......
Rotary disc is a key part in aero engine, HPT rotor disc due to its highest thermal load as well as mechanical load, alw......
By combining the hydrogen-induced local plastic deformation theory with the decohesive theory and the hydrogen pressure......
AIM:To evaluate the effects of suIindac in inducing growthinhibition and apoptosis of human gastric cancer cells incomp......
SEM in-situ Fatigue Observation on Crack Initiation and Growth from Inclusion in P/M Rene95 Superall
A special designed experiment was conducted for observing crack initiation and growth in P/M Rene9S superalloy under ten......
我们都知道,2008年北京奥运会的举办理念是:绿色奥运、科技奥运和人文奥运。这三个主题中,绿色奥运体现了中国三千年来哲学思想的......
Water film can serve as a sliding surface and cause landslides on gentle slopes. The development of “water film” in sa......
