WorldCat Identities

Cohen, Robert B.

Works: 7 works in 20 publications in 1 language and 576 library holdings
Roles: Editor
Classifications: HD2755.5, 338.88
Publication Timeline
Publications about  Robert B Cohen Publications about Robert B Cohen
Publications by  Robert B Cohen Publications by Robert B Cohen
Most widely held works by Robert B Cohen
The multinational corporation : a radical approach : papers by Stephen Hymer ( Book )
11 editions published in 1979 in English and Undetermined and held by 499 WorldCat member libraries worldwide
Telecommunications policy, high definition television, and U.S. competitiveness by Robert B Cohen ( Book )
3 editions published in 1989 in English and held by 72 WorldCat member libraries worldwide
Stratospheric Ozone Reactive Chemicals Generated by Space Launches Worldwide ( )
1 edition published in 1994 in English and held by 1 WorldCat member library worldwide
We report quantities of inorganic chlorine compounds and aluminum oxide particles (Al203) deposited in the stratosphere and troposphere by solid rocket propelled launch vehicles. Totals are presented by launch vehicle type, summarized on an annual basis, and projected to the year 2010 using standard mission models. Data are given for Air Force, NASA (shuttle and expendable vehicles), the European Space Agency (ESA) (Ariane 5), and the Japanese Space Agency (H-1 and H-2). Whereas inorganic chlorine compounds released by solid rockets are directly related to stratospheric ozone depletion, much uncertainty surrounds reactivity of aluminum oxide particles. We also compare current and future effects of space launch on stratospheric ozone depletion with those of Ozone Depleting Chemicals (ODCs). As a baseline, we use projections of future ODC use by SMC, Air Force Materiel Command (AFMC), and the world. Relevant stratospheric chemistry is considered to make a legitimate comparison of ODC and solid rocket exhaust. (jg)
Time-Resolved Mass and Energy Analysis ( )
1 edition published in 1991 in English and held by 1 WorldCat member library worldwide
A new method for time - resolved mass and kinetic energy analysis of ionic or neutral species in the range of 1 to 150 amu and 0.5 to 500 eV is described. Time - of - flight mass spectrometry is combined with position - sensitive detection to measure energy spectra for multiple masses at burst - mode sampling rates as high as 50 kHz. The detector is a rectangular microchannel plate with a 96 - element metal anode array that is read out either by fast analog - to - digital converters or by discriminators and scalers. The apparatus is configured so that the measured ion drift time varies as the square root of the mass - to - charge ratio and the displacement along the detector varies as the square root of the energy - to - charge ratio. Applications are envisioned in plasma analysis, in beam - scattering experiments, and in diagnostic measurements for spacecraft propulsion
An economic model of future changes in the U.S. communications and media industries by Robert B Cohen ( Book )
2 editions published in 1997 in English and held by 1 WorldCat member library worldwide
The new international division of labor, multinational corporations and urban hierarchy by Robert B Cohen ( Book )
1 edition published in 1981 in English and held by 1 WorldCat member library worldwide
Measurements of Hypergolic Fuels' and Oxidants' Permeation through Commercial Protective Materials. Part 1. Inhibited Red Fuming Nitric Acid and Unsymmetrical Dimethylhydrazine ( )
1 edition published in 1983 in English and held by 1 WorldCat member library worldwide
Protective equipment is used by Air Force and NASA personnel who participate in hypergolic propellant transfer and loading operations that entail potential exposure to hypergolic vapor or liquid. Forty materials (sections of protective suits, gloves, boots and a hood window) that are now used or are under consideration for future use in hypergolic propellant transfer operations were tested to determine their resistance to permeation by the fuel, unsymmetrical dimethylhydrazine (HDMH), after exposure to liquid UDMH, and their relative resistance to permeation by nitrogen dioxide (N02) after exposure to the liquid oxidant, inhibited red fuming nitric acid (IRFNA). The material sections were clamped in a static test cell that permitted the fabric to be exposed to the fuel (or oxidant) on one side while UDMH (or N02) permeation was monitored by an electrochemical analyzer on the other side. The experiments were discontinued after 90 min if no permeation was detected. A new material section was used in each test; the test section was neither preconditioned nor was exposure repeated. Only one suit fabric of the nine resisted both N02 and UDMH permeation for the full 90 min of the tests. One resisted both N02 and UDMH permeation for the full 90 min of the tests. One resisted UDMH for 90 min and was permeated rapidly (in 2 min) by N02, two resisted UDMH and N02 permeation from 20 to 30 min, and others were permeated in less than 5 min by both propellants
Audience Level
Audience Level
  Kids General Special  
Audience level: 0.68 (from 0.00 for Stratosphe ... to 0.88 for Telecommun ...)
English (19)