Boston University Concert Choir, October 27, 1990

This is the concert program of the Boston University Concert Choir performance on Saturday, October 27, 1990 at 8:30 p.m., at Marsh Chapel, 735 Commonwealth Avenue. Works performed were Tu es Petrus by Giovanni Pierluigi da Palestrina, Sicut cervus by G. P. d. Palestrina, A un giro sol de' begl'occhi lucenti by Claudio Monteverdi, Si ch'io vorrei morire by C. Monteverdi, Waldesnacht, Op. 62 No. 3 by Johannes Brahms, Im Herbst, Op. 104 No. 5 by J, Brahms, Luci care, luci belle, K.V. 346 by Wolfgang Amadeus Mozart, Ecco quel fiero istante, K.V. 436 by W. A. Mozart, Mi lagneró tacendo, K.V. 437 by W. A. Mozart, Se lontan ben mio tu sei, K.V. 438 by W. A. Mozart, Due pupille amabile, K.V. 439 by W. A. Mozart, Piú non si trovano fra mille amante, K.V. 439 by W. A. Mozart, and Cantata BWV 106: Gottes Zeit ist die allerbeste Zeit by Johann Sebastian Bach. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Boston University Early Music Series, January 27, 1995

This is the concert program of the Boston University Early Music Series performance on Friday, January 27, 1995 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Works performed were Sonata in C major for Flute and Basso Continuo, BWV 1033 by Johann Sebastian Bach and Carl Philipp Emanuel Bach, Sonata in G major for Viola da Gamba and Basso Continuo from "Der Getreue Musik-Meister" by Georg Philipp Telemann, Sonata in E minor for Flute and Basso Continuo by Frantisek Benda, Biblical Sonata IV for Harpsichord "Hiskia agonizzante e risanto" by Johann Kuhnau, Sonata in E minor for Flute and Basso Continuo, W. 120 by Carl Philipp Emanuel Bach, and "Paris" Quartet in E minor for Flute, Violin, Viola da Gamba and Basso Continuo by Georg Philipp Telemann. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Time's Arrow and the Marsh Chapel Choir with the Seraphim Singers, February 14, 1998

This is the concert program of the Time's Arrow and the Marsh Chapel Choir with the Seraphim Singers performance on Saturday, February 14, 1998 at 8:00 p.m., at Marsh Chapel, 735 Commonwealth Avenue. Works performed were Intrada for Solo Trumpet by Otto Ketting, Magnificat by Mist Thorkelsdottir, Kyrie, Gloria by Walter Hilse, Funf Geistliche Lieder by Anton Webern, Credo by W. Hilse, Alleluia by M. Thorkelsdottir, Santus, Benedictus, Agnus Dei by W. Hilse, A Little Prayer by Evelyn Glennie, and Eros I by Theodore Antoniou. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

The Turn of the Screw, December 7-11, 1989

This is the concert program of The Turn of the Screw by Benjamin Britten performance on Thursday-Monday, December 7-11, 1989 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Boston University Symphony Orchestra, March 21, 1992

This is the concert program of the Boston University Symphony Orchestra performance on Saturday, March 21, 1992 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue. Works performed were Symphony No. 1 in B-flat major, Op. 38 ("Spring") by Robert Schumann and Symphony No. 5, Op. 50 by Carl Nielsen. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

Time's Arrow, March 31, 1998

This is the concert program of the Time's Arrow performance on Tuesday, March 31, 1998 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue. Works performed were For Tōru by Lukas Foss, Water-Ways by Tōru Takemitsu, Meditation for Viola and Strings by Ronald Maltais, and L'histoire du Soldat by Igor Stravinsky. Digitization for Boston University Concert Programs was supported by the Boston University Humanities Library Endowed Fund

W-band waveguide-packaged InP HEMT reflection grid amplifier

This letter presents a 79-GHz broadband reflection-type grid amplifier using spatial power combining to combine the power of 64 unit cells. Each unit cell uses a two-stage cascade configuration with InP HEMTs arranged as a differential pair. A broadband orthogonal mode transducer (OMT) separates two orthogonally polarized input and output signals over a 75 to 85GHz range. In conjunction with the OMT, a mode converter with quadruple-ridged apertures was designed to enhance the field uniformity over the active grid. Measurements show 5-dB small signal gain at 79GHz and an 800-MHz 3-dB bandwidth. The amplifier generates an output power of 264mW with little evidence of saturation

Wilson Loop and the Treatment of Axial Gauge Poles

We consider the question of gauge invariance of the Wilson loop in the light of a new treatment of axial gauge propagator proposed recently based on a finite field-dependent BRS (FFBRS) transformation. We remark that as under the FFBRS transformation the vacuum expectation value of a gauge invariant observable remains unchanged, our prescription automatically satisfies the Wilson loop criterion. Further, we give an argument for {\it direct} verification of the invariance of Wilson loop to O(g^4) using the earlier work by Cheng and Tsai. We also note that our prescription preserves the thermal Wilson loop to O(g^2).Comment: 8 pages, LaTex; some typos related to equation (18) correcte