In this paper, we mainly propose three preconditioners for solving double saddle point problems, which arise from some practical problems.Firstly, the solvability of this kind of BAUME LIP BALM EMU OIL problem is investigated under suitable assumption.Next, we prove that all the eigenvalues of the three preconditioned matrices are 1.Furthermore, we
The best therapeutic strategy in virus-induced vasculitides should take into account the etiology of the disease and be adapted to the PQQ pathogenesis.The combination of antiviral treatments and plasma exchanges has been proven effective in polyarteritis nodosa (PAN).In human immunodeficiency virus (HIV)-related vasculitis this strategy is also ef
This article presents a new protection device using aluminum foam to enhance the impact resistance of bridge columns.First, the protection device is designed according to the characteristics of aluminum foam material.The geometric configuration and structure of the device are described.Second, the impact performance of bridge column is analyzed, in
Aims In Pakistan forensic psychiatry lacks behind as far as formal training and separate departments are concerned.In spite the cases are ever increasing.To find out the magnitude of the burden of forensic cases, current study was conceptualized.This audit would highlight the burden and endorse the demand of specific training in this area.A retrosp