Research on the structure and dynamics of elliptical galaxies is reviewed. Recent work on dynamical models is summarized, emphasizing triaxial systems. The... TD Zeeuw,M Franx - 《Annual Review of Astronomy & Astrophysics》 被引量: 585发表: 1993年 Analysis of the Behavior of an Optical Curren...
The research method referred to18, separation process of soil with different particle sizes shown in Fig. 2. The samples passing through a 2 mm mesh sieve were firstly treated by ultrasound, and then coarse sand particles (0.2–2 mm) were separated by the wet sieve method. Finally, according...
题目People don't like new things.It is not any different in health care.It took plenty of time until the stethoscope(听诊器),the symbol of health care was accepted by the medical community back in the 19th century.The instrument was invented by a French physician,who pu...
Henan Yulin Edu. Project Co., Ltd.7 yrsCN Key attributes Other attributes Place of Origin Henan Subject Physics Brand Name Yulin Model Number 015 Name Physical pallet balance Material plastic,metal Capacity 100/200/500/1000/2000/5000g
In China, there're many different kinds of foods. Some of them are very popular. The real Chinese food is dumplings. Now let's talk about them, OKEveryone in China likes dumplings very much, and there are many different kinds of dumplings. Some have meat and vegetables in them, others ...
D.set up language research organizations(2)What does "that tradition" in Paragraph 3 refer to(指代)? A.Having full records of the languages.B.Writing books on language teaching.C.Telling stories about language users.D.Living with the local speakers.(3)Turin finishes his book according to ...
Chinese kale (Brassica oleracea var. alboglabra) has high nutritional value. This study investigated the contents of glucosinolates, antioxidants (chlorophylls, carotenoids, vitamin C, and total phenolics), and antioxidant capacity in five organs from si
Previous research has impressively highlighted the potential role of pricing workplace parking, or to put it in another way, of switching from employer-paid to employee-paid parking, in tackling the adverse effects associated with employer parking and so in enhancing economic efficiency (Brueckner ...
This study investigated the repair effects of three Astragalus polysaccharides (APSs) with different molecular weights (Mws) on injured human renal proximal tubular epithelial (HK-2) cells to reveal the effect of Mw of polysaccharide on cell repair. A da
of metabolomics is simple. The research objects of metabolomics are the downstream products of genes and messengers, with relatively few types. Metabolomics simultaneously processes a large number of specimens of the patients, and the metabolites have versatility16, i.e., they can be indicators of ...