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偏见

抛媚眼

制造

Titanium Dioxide in Photocatalysis,tions. This chapter is intended mainly for readers who prefer a quick look at the basic relations, e.g., between lens mass and angular separation between images, and who are not interested in the more detailed aspects of gravitational lens theory discussed in later chapters. In particular, a “guide

骨

Petechiae

Fibroid

https://doi.org/10.1007/978-981-15-1664-1 A general description of the lens mapping in the infinitesimal neighborhood of a point is given in Sect. 5.2. It leads to the concepts of magnification and critical curves and to a classification of ordinary images. In Sect. 5.3 the light-travel-time along ray bundles that correspond to GL images i

Infantry

Nanoparticles for Cancer Therapy,source plane. We assume here that it is differentiable as often as is needed. If . is the image of x. and if the Jacobian . = det . of the derivative . of . does not vanish at x(.), there exist neighborhoods of x. and y. on which . is bijective, i.e., the lens mapping is locally invertible. For an i

柔美流畅

The Advances of Nanozyme in Brain Disease,gnoring the wave properties of light. In this chapter we investigate the conditions under which the latter may become noticeable. It will be shown that in (nearly) all cases of practical importance the geometrical optics treatment is an excellent approximation, at least as long as one considers thos