نتایج جستجو برای: abcd matrix
تعداد نتایج: 365910 فیلتر نتایج به سال:
The lipid formulation of amphotericin B, Amphotec (ABCD), has not been used intrathecally. After a single intrathecal dose or after four doses, conventionally formulated deoxycholate amphotericin B (AMB) (Fungizone) resulted in higher levels of amphotericin B in the cerebrospinal fluid of rabbits than did ABCD. Clinically and histologically, ABCD was about threefold less toxic than AMB after a ...
ARTICLE HISTORY: Received 04 March 2015 Revised 22 March 2015 Accepted 22 March 2015 Studying Gaussian beam is a method to investigate laser beam propagation and ABCD matrix is a fast and simple method to simulate Gaussian beam propagation in different mediums. Of the ABCD matrices studied so far, reflection and refraction matrices at various surfaces have attracted a lot of researches. However...
The ABCD matrix formalism, the Collins formula and the complex amplitude distributions on two spherical surfaces of given curvature and spacing are adapted to the mathematical expression of fractional order Fourier transform. This result provides a general expression as a tool for analyzing complicated systems involving several lenses and mirrors separated by arbitrary distances; for this class...
BACKGROUND AND PURPOSE The ABCD(2) score is increasingly used for risk stratification of transient ischemic attack patients. We sought to determine the reliability and convergent validity of retrospective ABCD(2) score estimation from medical records. METHODS We compared ABCD(2) scores that were prospectively determined by a vascular neurology attending to scores determined retrospectively fr...
BACKGROUND AND PURPOSE A simple score derived in the Oxfordshire Community Stroke Project (ABCD score) was able to identify individuals at high early risk of stroke after a transient ischemic attack (TIA) both in a population-based and a hospital-referred clinic cohort. We aimed to further validate the former score in a cohort of hospitalized TIA patients. METHODS We retrospectively reviewed ...
Abstract—In this paper, a multi-branch power line is modeled using ABCD matrix to show its worth as a communication channel. The model is simulated using MATLAB in an effort to investigate the effects of multiple loading, multipath, and those as a result of load mismatching. The channel transfer function is obtained and investigated using different cable lengths, and different number of bridge ...
In this paper, the network expression is proposed for finitelength multiple transmission lines in arbitrary directions. Crosstalk between two bent transmission lines is analyzed using the proposed approach as an example of application. The resultant network function is obtained in the form of an ABCD matrix for two bent transmission lines is obtained. The validity of the proposed approach was c...
Social capital is the power of social networks and relationships, which constitute the social environment. Social capital has been associated with many measures of health and development. Asset-based community development (ABCD) provides a framework to increase social capital and build stronger, healthier communities for children. ABCD is a strength-based approach to community building that emp...
In a ring laser gyroscope, due to the rotation and the Sagnac effect, a phase difference between the two counter-propagating beams is generated. In this device, the higher phase difference between these two beams causes the better the interference pattern detection, and thus the sensitivity is increased. In this paper, the effect of inserting a dielectric-graphene photonic crystal inside a ring...
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