New High T sub c Oxide Superconductors

  • Johnson D.

Intense activity in recent months on high T sub c oxide superconductors began with the announcement of possible superconductivity in the La-Ba-Cu-O system [1].

Processing of Oxide Superconductors

  • Johnson D.

Intense activity in recent months on high T sub c oxide superconductors began with the announcement of possible superconductivity in the La-Ba-Cu-O system [1].

Region Routing: A Class of Distributed, Fault-Tolerant and Hot-Spot Reducing Routing Schemes

  • Sugla B.

Routing algorithms for packet-switching networks have been used for some time a subject of intense study due to their importance in design and implementation of fast switching networks.

Selectivity delta-doped Al sub x Ga sub 1-x As/GaAs Heterostructures Transistors with Two-Dimensional Electron-Gas Concentrations Exceeding 1.5 x 10 sup 12 cm sup -2

  • Cunningham J.
  • Feuer M.
  • Schubert E.
  • Tsang W.

The unique properties of these heterostructures are a quasi- dimensional electron gas 2DEG at the Al sub x Ga sub 1-x As/GaAs interface and a high carrier mobility at low temperatures.

Integrated Operations

  • Vetter R.

This article discusses the value of and reasons for integrating Operations Systems (OSs) with each other and with network elements, and describes recent developments in the integration of OSs in the Bell operating companies. Four reasons for integration OSs are (1) to provide added value resulting from the synergy of ...

ISDN Data Networking and its Future

  • Gabuzda L.
  • Garg V.

The Integrated Services Digital Network (ISDN) has been designed to provide end-to-end digital connectivity. The 5ESS(TM) Switch ISDN capabilities provide integrated voice/data subscriber access, packer switching, and message signaling. This paper briefly describes the 5ESS(TM) Switch ISDN capabilities, and discusses the future evolution plans of ISDN data networking.

What is 'Object Oriented Programming'?

  • Stroustrup B.

Object-Oriented Programming and Data Abstraction have become very common terms. Unfortunately, few people agree on what they mean. This paper will offer informal definitions that appears to make sense in the context of languages like Ada, C++, Modula-2, Simula67, and Smalltalk.

Yttrium Oxide/Silicon Dioxide: A New Dielectric Structure for VLSI/ULSI Circuits

  • Gurvitch M.
  • Manchanda L.

For MOS VLSI circuits there is continuous effort to enhance the transconductance of transistors and to reduce the size of storage capacitors [1]. The necessary increase in the transconductance and the charge storage capacity have been achieved primarily by decreasing the thickness of silicon-dioxide.

Interaction of Speaking Rate and Postvocalic Consonantal Voicing on Vowel Duration in American English

  • Syrdal A.

In American English, a vowel preceding a voiced consonant has frequently been shown to be of longer duration than one preceding a voiceless consonant. However, Port [R.F. Port, J. Acoust. Soc. Am.69, 262-274 (1981)] reported no effect of postvocalic consonant voicing on the total duration of the VC unit. Port ...

A Resonant DC-to-DC Converter Operating at 22 Megahertz

  • Balicki J.
  • Bowman W.
  • Dickens F.
  • Honeycutt R.
  • Nitz W.
  • Strauss W.
  • Suiter W.
  • Ziesse N.

A resonant dc-to-dc converter operating at 22 Mhz is described. Solutions are presented to a number of problems, including MOSFET gate drive and rectifier diode capacitance, that have seriously limited the performance of high frequency converters operating with useful input and output voltages.

The Morphology, Structure, and Phase Transitions of Polysilanes

  • Bovey F.
  • Lovinger A.
  • Schilling F.

The synthesis of soluble polysilane homopolymers was first reported in 1980. The most striking characteristic of the polysilanes is their intense UV absorption at 300-380 nm, both in solution and in the solid State.

Convection in a Binary Fluid Mixture in an Annulus

  • Bensimon D.
  • Kolodner P.
  • Surko C.
  • Williams H.

Convection in binary fluids confined in a one dimensional geometry (an annulus of aspect ratio 1:2:120; height:width:diameter) is studied. For a range of temperature differences across the cell various stationary states are observed: clockwise or counterclockwise traveling waves, confined states consisting of bands of traveling waves and conduction zones, and ...

Non-Linear Convective States in a Fluid Mixture at Small Separation Ratio

  • Kolodner P.
  • Passner A.
  • Surko C.
  • Williams H.

We have discovered time-dependent convective states in an ethanol-water mixture which develop continuously from the linear traveling-wave states.(1) The separation ratio is -0.01 >- psi >- -0.02, and the Rayleigh number is small [i.e., epsilon=(R sub (co))/R sub (co) <- 0.005].

Alternative Market Arrangements for Technology Transfer

  • Linhart P.
  • Radner R.

Within the current rapid expansion of markets for telecommunications services and equipment, both national and international, one sees an increasing frequency of alliances in which each of two firms seeks to use the other to complete its portfolio of strengths. Often, this combination of strengths enables the alliance to achieve ...

Multi-gigabit per Second Transmission Using Optical Time Division Multiplexing and Demultiplexing

  • Alferness R.
  • Buhl L.
  • Eisenstein G.
  • Gnauck A.
  • Kasper B.
  • Korotky S.
  • Raybon G.
  • Tucker R.
  • Veselka J.

We report 8-Gb/s transmission over 8-km of single-mode fiber using a 2-channel optical time division multiplexed system. The experimental system incorporates mode-locked lasers as sources and Ti:LiNbO sub 3 switches for data encoding and for demultiplexing. We also report multiplexing/demultiplexing with low crosstalk and error rates < 10 sup -10 ...

Modulated States of Traveling-Wave Convection in Binary Fluid Mixtures

  • Kolodner P.
  • Passner A.
  • Surko C.
  • Williams H.

Convection in binary fluid mixtures begins with an oscillatory instability consisting of convective rolls which propagate laterally and which reflect from the walls of the container(1).

Optical Digital Computers - Devices and Architectures

  • Huang A.

Advances in computation are being limited by communication considerations. The fastest transistors switch in 5 picoseconds whereas the fastest computer runs with a 5 nanosecond clock. This three orders of magnitude disparity in speed can be traced to communication constraints such as connectivity and bandwidth.

Interpolative and Predictive Transform Coding of Images

  • Haskell B.

For many years it has been observed that transform coding of 2D blocks of image pels at rates below about 0.5 bits per pel gives rise to objectionable block boundary distortion, due to the very visible discontinuity between blocks that are coded with only a few transform coefficients.

Distributed Object-Oriented Version of Notesfiles

  • Griffin J.

This is the author's thesis proposal for work being supervised by Professor Ralph Johnson. The author expects to complete all requirements for his degree by September 1987.

Real Time Detection and Control of Overload on Telecommunication Networks

  • Tsiotras G.

Today, in both domestic and international telecommunication networks, traffic management has become an indispensable tool for maintaining network integrity and improving network performance during traffic overloads caused by natural disasters, media-stimulated mass callings, equipment failures and traffic surges on major holidays.