The K-series refers to a specific set of X-ray emissions that are produced when an electron transitions to the K shell (the innermost energy level) of an atom. This process occurs when inner-shell electrons are ejected, usually by high-energy photons or particles, causing electrons from higher energy levels to fall into the K shell, resulting ...

In mechanics, two or more springs are said to be in series when they are connected end-to-end or point to point, and it is said to be in parallel when they are connected side-by-side; in both cases, so as to act as a single spring:

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2015年6月2日 · One classical work in condensed matter physics by Kitaev, is using (real and complex) K-theory to classify noninteracting gapped fermionic system. One can obtain the so-called "Periodic table for topological insulators and superconductors" ( ). One striking physical result is the (Bott) periodicity in dimension of the system.

Synopsis.—The object has been to measure both the emission and the absorption wave-lengths in the K and L-series characteristic of a chemical element (tungsten), using the same X-ray spectrometer throughout, to see if general relations among them could be found.

In all cases expect that of the K-series the probability of emitting an augar electron is much greater then that of emitting an x-ray reducing their intensities. This can be quantified in something called the 'fluorescence yield' defined as the ratio of the radiative probability, $\Gamma_r$, to the total transmission probability, $\Gamma_{tot ...

When \(n\) springs with respective constants \(k_1,k_2,\cdots ,k_n\) are connected either in series or in parallel, the whole system of springs behaves as a single one with an equivalent constant \(k\).

2019年7月23日 · To address this problem, this research proposes an applicable algorithm by means of a wave-vector (k) series approximation of vectorial optical fields. On the basis of the semi-analytical rigorous coupled wave analysis (RCWA), an adequate selection scheme on k-series enables computationally efficient yet still predictive calculations for DOEs.

Two springs in series: k eff = k 1 k 2 / (k 1 +k 2) = k/2. Two springs in parallel: k eff = k 1+ k 2 = 2k. The effective spring constant is larger for springs in parallel (the middle thread is cut) and the mass moves up.

2021年4月4日 · When a spring mass system is connected vertically with two massless springs in series whose spring constants are $k_1$ and $k_2$ to a block of mass $m$ we know that equal forces act on both the springs. Let that force during oscillations be $F$.