A fast direction of arrival (DOA) estimation method using a real-valued cross-correlation matrix (CCM) of coprime subarrays is proposed. Firstly, real-valued CCM with extended aperture is constructed to obtain the signal subspaces corresponding to the two subarrays. By analysing the relationship between the two subspaces, DOA estimations from the two subarrays are simultaneously obtained with a...

A method of solving combinatorial problems, such as the N queens problem or graph coloring problems using independent parallel processes, is proposed. This method is stochastic (or randomized). Problems are decomposed for parallel processing implicitly and stochastically. This method is based on CCM, which is a computational model proposed by the author. A program consists of production rules a...

Chronic heart failure (CHF) is a common chronic disease that requires much care. This study aimed to explore the effects of collaborative care model (CCM) on patients with CHF. A total of 114 CHF patients were enrolled in this study, and were randomly and equally divided into two groups: control and experimental. Patients in the two groups received either usual care or CCM for 3 continuous mont...

ion of the actual system. We use CCGs to perform a local analysis which, if successful, can determine that the definitions terminate. To do this, we start by assigning calling context measures to contexts in the CCG. 8.4 Calling Context Measures and Termination Definition 8.4.1. Given a calling context, c = 〈f,G, e〉, and a set S ⊆ Val , the set of calling context measures (CCMs) for c over S, d...

We propose a numerical method for maintaining a dynamic rolling motion of animated gaseous phenomena, such as smoke, that avoids dissipation due to numerical error. We compensate for the errors induced by a semi-Lagrangian scheme using an error estimate for each time interval. We develop a new advection term and perform vortex advection based on a vorticity confinement force. Example simulation...

ali hossein najafi abrand abadi associate professor, shahid beheshti university mohammad jafar habibzadeh associate professor, department of law, tarbiat modares university abulfat'h khaleghi ph.d. student of criminal law, tarbiat modares university the imprisonment (custodial sentences) is the most common and expensive sanction in the criminal law, which has enjoyed hardly any success on ...

We consider the problem of spatial channel covariance matrix (CCM) estimation for intelligent reflecting surface (IRS)-assisted millimeter wave (mmWave) communication systems. Spatial CCM is essential two-timescale beamforming in IRS-assisted systems; however, estimating challenging due to passive nature elements and large size resulting from massive IRS. In this paper, we propose a method by e...

BACKGROUND National community-based health worker (CBHW) programs often face challenges in ensuring that these remote workers are adequately trained, equipped and supervised. As governments increasingly deploy CBHWs to improve access to primary health care, there is an urgent need to assess how well health systems are supporting CBHWs to provide high quality care. METHODS This paper presents ...

BACKGROUND In October 2007, manufacturers voluntarily withdrew over-the-counter (OTC) infant cough and cold medications (CCMs) from the US market. A year later, manufacturers announced OTC CCM labeling would be revised to warn against OTC CCM use by children aged <4 years. We determined whether emergency department (ED) visits for CCM adverse drug events (ADEs) declined after these intervention...

CCM is a conventional authenticated-encryption scheme obtained from a 128-bit block cipher. The mechanism has been adopted as the mandatory encryption algorithm in an IEEE 802.11 draft stan­ dard [15], and its use has been proposed more broadly [16, 17]. In this note we point out a number of limitations of CCM. A related note provides an alternative to CCM [5].