A bstract Classical soft theorems applied to probe scattering processes on AdS 4 spacetimes predict the existence of perturbative 1 /L 2 corrections photon and graviton factors asymptotically flat spacetimes. In this paper, we establish that corrected theorem can be derived from a large N CFT 3 Ward identity. We derive perturbed mode operator spacetime patch in global terms an integrated expres...

Protection systems have vital role in network reliability in short circuit mode and proper operating for relays. Current transformer often in transient and saturation under short circuit mode causes mal-operation of relays which will have undesirable effects. Therefore, proper and quick identification of Current transformer saturation is so important. In this paper, an Artificial Neural Network...

We study low energy collective modes and transport properties of the “helical metal” on the surface of a topological insulator. At low energies, electrical transport and spin dynamics at the surface are exactly related by an operator identity equating the electric current to the in-plane components of the spin degrees of freedom. From this relation it follows that an undamped spin wave always a...

A straightforward and reliable method was developed for the determination of chlormequat in pears by liquid chromatography/mass spectrometry (LC/MS). Water and methanol were compared as extraction solvents. Because no significant differences in extraction efficiency or repeatability were found, water was chosen as the extraction solvent. The extracts were analyzed without cleanup by either an i...

The team of college counselors is an important component the framework China's higher education system. In order to enhance professional identity counselors, overcome dilemma unclear career positioning and future development, explore a better path achieve their management should do good job in checking selection employment optimize onboarding training mode, clarify boundaries responsibilities, ...

We calculate the quantum corrections to the mass of the zero mode of the fifth component of the gauge field at two-loop level in a five dimensional massless QED compactified on S1. We discuss in detail how the divergences are exactly canceled and the mass becomes finite. The key ingredients to obtain the result are the shift symmetry and the Ward-Takahashi identity. We also evaluate the finite ...

In a recent paper [Alexandrov A S 1996 J. Phys.: Condens. Matter 8 6923–32; cond-mat/9603111], it has been suggested that there is no Cooper pairing in boson-fermion models of superconductivity. We show that this conjecture is based on an inconsistent approximation that violates an exact identity. Quite generally, the divergence of the fermion t-matrix (the Thouless criterion) is accompanied by...

This document specifies EAP-IKEv2, an Extensible Authentication Protocol (EAP) method that is based on the Internet Key Exchange (IKEv2) protocol. EAP-IKEv2 provides mutual authentication and session key establishment between an EAP peer and an EAP server. It supports authentication techniques that are based on passwords, high-entropy shared keys, and public key certificates. EAP-IKEv2 further ...