371 research outputs found

    A study of the synthesis of 3-port electrical filters with Chebyshev or elliptic response characteristics

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    The paraunitary property of lossless networks has been exploited to determine relationships for the scattering parameters of 3-port networks (filter pairs) to predispose approximate Chebyshev or elliptic frequency response characteristics. Prior work by Belevitch, Zhu and Chen determined the relationships for Butterworth frequency response characteristics. Networks which demonstrate approximations to Chebyshev and elliptic response characteristics were synthesized from the reflection coefficient of the network using the Darlington method for the second- and third-order cases. Filter pairs which have perfect, non-approximate Chebyshev or elliptic response characteristics were shown not to exist

    The Social Trifecta of Human Misery and Problematical Constructions of the Self: Implication for Formation and Supervision

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    I wish to propose that three broad and pervasive social realities—consumerism, income inequality, and certain aspects of postmodernity—constitute a perfect storm of suffering for the individuals, families, communities and congregations in our care. These social realities are, for most societies touched by the globalization of capitalism, the trifecta of human misery. Though I continue to draw upon the insights of psychology, I can no longer imagine focusing solely upon the intrapsychic and interpersonal lives of the suffering individuals, couples, and families in my counseling office. I face a similar challengeteaching and advising students preparing for ministry or  supervising candidates seeking to become pastoral counselors. How can I limit their training and formation to the utilization of psychologies and theologies that are occupied almost exclusively with individuals and their private relationships
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