1.IntroductionrnA vaccine clinical trial examines the effects of a vaccine on human volunteers in terms of safety,immuno......

The lateral resolution in Atomic force microscopy(AFM)is mainly determined by the size of the tip which contributes most......

Von Willebrand factor(VWF)is a concatameric plasma glycoprotein with multiple functions in hemostasis and thrombosis.Ele......

All-inorganic CsPbX_3(X = I,Br,Cl) perovskite quantum dots(PQDs) have been extensively investigated because of their uni......

I Also Have a Dream， one of Lin Da’s bestsellers， in some ways has some coincidence with Martin Luther King’s famous spe......

When people want to help the homeless they usually think of providing them with money or goods like food， water， and cloth......

I realized that I had no skills as an adult,so I went to a trade school.I entered a cabinet making program.I didn\t thi......

President Xi Jinping attended the Leaders Summit on Climate via video link and delivered an important speech on April 22......

The Greeks had established the principle that geometrical constructions must be carried through with only straightedge ......

Since 1985, the no-scalpel vasectomy technique has been widely used outside China. The prevalence of this tech-nique ha......

There are two models in use today to analyze structural responses when subjected to earthquake ground motions,the Displa......

Traditional stochastic reservoir modeling,including object-based and pixel-based methods,cannot solve the problem of rep......

Considering the complex nonlinear relationship between the material parameters of a concrete faced rock-fill dam(CFRD) a......

User influence is generally considered as one of the most critical factors that affect information cascading spreading.B......

The virtual network embedding/mapping problem is an important issue in network virtualization in Software-Defined Networ......

突然地,我必须面对我爱情的期限,无法预料,所以不能阻止,听起来有点像出车祸的感觉,而且肇事者逃逸了…… Suddenly, I have to ......

1.集合：Fall in.2.列队：Line up.3.立正：Attention.4.稍息：At east/As your were.5.向前/左/右看：Eyes front/left/right.6.报数：Count o......

IMO was held in Istanbul,Turkey.73 terms were represented.Macedonia first competed,with a reduced team of only four mem......

<正> Valuable data of atmospheric temperature profiles on a global scale can be obtained by remote sensing from satellit......

有时候,弱点利用好了,就会变成一种优势。杰克是个笨拙的小孩。他出生时身形瘦小,肤色苍白。随着他慢慢长大,这种体格成了他的一部......

For compressible two-phase displacement problem, a kind of characteristic finite difference fractional steps schemes is ......

Carotenoids are widely distributed in higher plants, algae and some bacteria and fungi. For human beings, they are essen......

What steps do goods have to go through to arrive in customers’ hands after leaving factories? How does their cost incre......

Experiments were conducted and field investigations were performed to study the development of step-pool sequence and i......

A power train dynamics model of a coaxial parallel hybrid electric vehicle(HEV)was built for different clutch operating ......

“The world is small,”said Confucius.When he made that comment he was standing 1,545 reelers above sea level on the top......

A blind boy sat on the steps of a building with a hat by his feet.He held up a sign which said:“I am blind,please help.......

Using Langevin simulations,we study numerically the directional mode-locking of the dynamics of twodimensional superpara......

A series of new amino alcohols derivatives was synthesized with 6-bromo-2-tetralone as starting material, 6-substituted-......

A multi-step reaction route was developed to synthesize boron nitride(BN) nanoparticles via the reaction between NaN3 an......

A novel estrogen dendrimer has been synthesized through a combination of divergent and convergent approaches in 9 practi......

We report on temperature-programmed growth of graphene islands on Ru(0001) at annealing temperatures of 700°C,800°C,an......

Facile synthesis of the two new natural heterocyclic compounds bretschneiderazines A(2) and B(3),isolated from an extrac......

The first total syntheses of bipinnatone A and B have been achieved starting from commercially available phloroglucinol,......

We report a synthetic design and the experimental exploration of preparation of disubstituted polyacetylenes(PAs,P3) thr......

Synthetic studies on the construction of 7-O-methylquercetin from quercetin in 36%yield in four steps is reported,this s......

The cracking mechanism of 1,1,2-trichloro-l,2,2-trimethyldisilane catalyzed by aluminum chloride is investigated by DFT ......

A novel large thiophene-fused polycyclic aromatics 1 based on pyrene 5 has been synthesized,and its structure was confir......

In Northwest China, there are many inland rivers that are characterized by high a gradient, coarse particles, a thick pe......

In order to explore the re-aeration law of water flow over spillway, the transfer process of oxygen in water flow over s......

This paper described a practical five-step synthetic approach for 2-amino-5-methoxylpropiophenone in 45%overall yield,us......

A novel pyrrolo-benzoxaborole,6-(pyrrol-1-yl)-1,3-dihydro-1-hydroxy-2,1-benzoxaborole,was synthesized with 27%overall yi......

Bromophenols are a set of natural products widely distributed in seaweed, most of which exhibit interesting and useful b......

Stepped spillways for significant energy dissipation along the chute have gained interest and popularity among researche......

The flow stress behavior of grade G-105 steel(API standard) for oil drill pipe in hot compressive deformation was studie......

The energy dissipation of X-shaped flaring gate piers ahead of a stepped spillway was adopted in the Suofengying Hydropl......

Mr. Zang Hong, a famous master of ceremony for wedding in Beijing, has presided more than 200 wedding ceremonies in th......

The tumbling dynamics of individual absorbed polymer chains in shear flow is studied by employing multi-particle collisi......

The title compound was synthesized from 3-(2-methylphenyl)-2-thioxo-2,3-dihy- droquinazolin-4(1H)-one (4) which was prep......

A short formal stereoselective synthesis of(-)-swainsonine(1) is described.Our synthesis started with the versatile buil......