Ali A. Hasan

Learn More
OBJECTIVE This prospective study was conducted to evaluate the value of sonographic B-lines (previously called "comet tail artifacts"), which are long, vertical, well-defined, hyperechoic, dynamic lines originating from the pleural line in assessment of interstitial lung diseases (ILD) and compare them with the findings of chest high-resolution computed(More)
BACKGROUND : Cholinergic urticaria is uncommon and accounts for 10% of all young adults. To date, there is no effective therapy for cholinergic urticaria. OBJECTIVE : To determine the therapeutic efficacy of different drug combinations in the treatment of cholinergic urticaria. PATIENTS AND METHODS : The participants included in the study are in the age(More)
Many modern high-resolution spectral estimators in signal processing and control make use of the subspace information afforded by the singular value decomposition of the data matrix , or the eigenvalue decomposition of the covariance matrix. The derivation of these estimators involves some form of matrix decomposition. In this paper, new computational(More)
—Subspace methods such as MUSIC, Minimum Norm, and ESPRIT have gained considerable attention due to their superior performance in sinusoidal and direction-of-arrival (DOA) estimation, but they are also known to be of high computational cost. In this paper, new fast algorithms for approximating signal and noise subspaces and that do not require exact(More)