Muon Colliders: New Prospects for Precision Physics and the High Energy Frontier

An overview is given of muon collider technology and of the current status of the muon collider research program. The exciting potential of muon colliders for both neutrino physics and collider physics studies is then described and illustrated using self-consistent collider parameter sets at 0.1 TeV to 100 TeV center-of-mass energies.Comment: 17 pages, 2 figure

Investigation of the Static Mixer for Improved Heat Transfer to Black Liquors

The objective of this experiment was to determine an improved method by which evaporation of kraft black liquors to the 50 to 65% total solids level could be sufficiently performed in multiple effect evaporators. This would eliminate the need of the highly malordorous direct contact evaporators which are presently used. Heat transfer characteristics of the Kenics Static Mixer were examined to determine if its application in multiple effect evaporator tubes would possibly reduce viscous liquor film layers which now hinder heat transfer. A single pass heat exchange unit that allowed removal of the inner tube and its replacement by a Static Mixer unit was designed and built. Heat and mass balances were performed on the unit to determine possible gains in heat transfer achieved using the Static Mixer. Experimentation done in the laminar regions of flow showed that the inside film coefficient was enhanced a slight, but significant amount. It is recommended that further study be made at higher liquor concentrations and at turbulent flow conditions

Reletting the Abandoned or Defaulted Public Works Project in New York- To Bid or Not to Bid?

The general requirement that contracts for public works be let pursuant to advertisements for bids to the lowest responsible bidder has long been the law in New York and other jurisdictions. After determining that the mandatory statutory pronouncements apply to a particular contract, there is an entire second level problem of the propriety of bids and the awarding of the contract pursuant thereto. Suppose a contractor has defaulted or abandoned a valid public works contract. Must the public entity now readvertise for bids for the completion of the work? The answer in most instances is no, and this raises the disconcerting specter of a single unsupervised public official having the power to let potentially huge contracts. Of course the size of the relet contract is not the prime consideration. The key point is that the laboriously developed bidding laws can be circumvented in default and abandonment situations, resulting in favortism for the contractor and a bad bargain for the taxpayers. However, the other side of the question is equally vexing. An abandoned or defaulted contract may require immediate continuation or remedial action. If such situations do not fit into the public emergency exception, must the public body expend the time, effort, and expense to analyze the supplies needed or work remaining, formulate proposed contracts, and advertise for bids? This article will analyse this difficulty in the context of the confusing and conflicting status of the legal requirements in New York for the reletting of abandoned or defaulted work

Discussion on Muon Collider Parameters at Center of Mass Energies from 0.1 TeV to 100 TeV

Some of the potential capabilities and design challenges of muon colliders are illustrated using self-consistent collider parameter sets at center of mass energies ranging from 0.1 TeV to 100 TeV.Comment: 3 pages, no figures. Submitted to Proc. Sixth European Particle Accelerator Conference (EPAC'98), Stockholm, Sweden, 22-26 June, 199