. . . . . . . . . . . . . . . . . . .. . . . . . . . . . .. . . . . . . . .. . . . . . . . . . .. . . . . . . . . . . . . – 6 km main damping ring in tunnel separate from main linac, storing one full . . . bunch train – 6 km predamping ring in same tunnel as main damping ring, storing a second full bunch train – On each machine pulse: • Fully damped beam extracted from main damping ring • Partially damped beam extracted from predamping ring and injected into main damping ring • Undamped beam injected directly from source into predamping ring . . . • Tolerances on predamping ring (beam emittance and stability) are significantly relaxed compared to main damping ring. • I mplications of different predamping ring schemes for sources an d for main damping ring need further study. . . . . .. . George Gollin, WG3 summary, SLAC ILC-America, October 2004 .. . . .. . . . . 2/ 16 . I Physics P llinois .... . .. . . . . .. . . . . . 21 . . .. . . . . . . . sources . .Predamping ring can have. major benefi . t for positron . . . . . . . . .. .. . . . . . aperture can be much larger in a ring with a larger natural . • Dynamic . . .. . . . . . . emittance. . . . . . . . . . . . . . . dispersion lead to weaker sextupoles. . . . . – Lower chromaticity and. larger . . . . . . . • . Several schemes are .possible. One example: . . . . . . . . . . . . .
Optimal Taxes on Consumption Introductory Example to Optimal Taxes Suppose cigarettes cost $1.00 to produce each pack, and there are enough competing producers that the no-tax market price equals unit cost, $1.00. Suppose my benefits from smoking are: first pack, $2.30; second, $1.60; third, $1.10; fourth, $0.60; and so on. Suppose your loses from my smoking are $0.40 per pack. Question 1: How many packs do I smoke in the competitiveequilibrium? Is that consumption efficient? (Hint: On the 3 rd pack, I gain $0.10 consumer surplus, but you loose $0.40) Question 2: Name a tax on cigarettes that’s so high that the tax equilibrium is inefficient. (Hint: Without tax, on the 1st pack, I gain $1.30 surplus and you loose $0.40.) Question 3: Name a tax on a pack of cigarettes that makes the tax equilibrium efficient. (Hint: Compute efficient # of packs?) BA 210 Lesson III.4 Externalities 4
Advantages of RFID over barcodes Unique Identification Barcode identifies type of object while the RFID identifies the object uniquely Example: When product is purchased at Walmart and is scanned for billing the information that is scanned can be said to be as “Kleenex tissue pack-10 count” In fact each identical pack will scan the same information Whereas the RFID tag would scan the same pack as “Kleenex tissue pack-10 count serial no. ABC1239086” and each pack thus will generate unique information(identification). 1/29/09 UAHuntsville 9
Secure Cross-Site Ajax Requests Server’s Scuta Configuration Ring 0 Ring 1 Browser’s Escudo Configuration Originbased Ring Mappin g Ring 0 Ring 1 Ring 2 Ring 2 Case 2
TESLA overview: damping ring beam Damping ring beam: • One pulse: 2820 bunches, ~20 nsec spacing • length of one pulse in damping ring ~17 kilometers • Eject every nth bunch into linac (leaving adjacent bunches undisturbed) 17 km damping ring circumference is set by the minimum bunch spacing in the damping ring. Reduced minimum bunch spacing would permit a smaller damping ring. Damping ring cost (~214 M €) will drop somewhat with smaller rings 6 George Gollin, UTA LC 1/10/03 I Physics P llinois
A LAN Alternative: Token Ring Collisions tend to exacerbate traffic problems on congested Ethernet LANs, so an alternative to the CSMA/CD approach is desirable. message Ring Computer Computer Computer Computer TOKEN Computer Computer message TOKEN message Computer Computer Computer Computer Computer Computer Computer Token Ring uses a ring topology, with a specially formatted “token” message perpetually traversing the ring. When a machine wishes to transmit, it merely waits for the token to arrive, removes it, and transmits its message. When its message returns to the transmitting machine, it’s removed from the ring, and the machine places the token back on the ring. Chapter 15 Networks Page 6
Top Occupations Fabricated Metal Product Manufacturing Cluster % Change, Jobs 2014 2009-2014 Occupations Team Assemblers Machinists Welders, Cutters, Solderers, and Brazers First-Line Supervisors of Production and Operating Workers Cutting, Punching, and Press Machine Setters, Operators, and Tenders, Metal and Plastic Coating, Painting, and Spraying Machine Setters, Operators, and Tenders Grinding, Lapping, Polishing, and Buffing Machine Tool Setters, Operators, and Tenders, Metal and Plastic Inspectors, Testers, Sorters, Samplers, and Weighers Structural Metal Fabricators and Fitters Computer-Controlled Machine Tool Operators, Metal and Plastic Drilling and Boring Machine Tool Setters, Operators, and Tenders, Metal and Plastic Laborers and Freight, Stock, and Material Movers, Hand Helpers--Production Workers Sales Representatives, Wholesale and Mfg. , Except Technical and Scientific Products Lathe and Turning Machine Tool Setters, Operators, and Tenders, Metal and Plastic Median Hourly Earnings Entry Level Education 155 137 98 8% -2% 36% $12.1 $18.6 $16.3 High school diploma or equivalent High school diploma or equivalent High school diploma or equivalent 63 19% $23.9 Postsecondary non-degree award 63 24% $13.4 High school diploma or equivalent 61 30% $15.3 High school diploma or equivalent 61 7% $17.1 High school diploma or equivalent 53 10% $15.6 High school diploma or equivalent 43 115% $17.6 High school diploma or equivalent 42 11% $17.8 High school diploma or equivalent 33 -11% $10.4 High school diploma or equivalent 30 25% $11.3 Less than high school 29 38% $10.2 Less than high school 29 26% $22.8 High school diploma or equivalent 28 -7% $18.9 High school diploma or equivalent Note: SOC (Standard Occupation Classification) 5-digit occupations are included by jobs in 2014. Extended proprietors include estimates for underreported self employment, proprietorships, trusts, partnerships and cooperatives. section 02 Source: EMSI Class of Worker 2015.4 (QCEW, non-QCEW, self-employed and extended proprietors). 25
Top Occupations Primary Metal Manufacturing Cluster Occupations Extruding and Drawing Machine Setters, Operators, and Tenders, Metal and Plastic First-Line Supervisors of Production and Operating Workers Metal-Refining Furnace Operators and Tenders Inspectors, Testers, Sorters, Samplers, and Weighers Maintenance and Repair Workers, General Grinding, Lapping, Polishing, and Buffing Machine Tool Setters, Operators, and Tenders, Metal and Plastic Cutting, Punching, and Press Machine Setters, Operators, and Tenders, Metal and Plastic Molding, Coremaking, and Casting Machine Setters, Operators, and Tenders, Metal and Plastic Helpers--Production Workers Jobs 2014 % Change, 20092014 32 52% $17.5 22 83% $23.9 20 33% $16.4 17 70% $15.6 17 113% $15.7 16 0% $17.1 High school diploma or equivalent 15 150% $13.4 High school diploma or equivalent 14 -30% $14.2 High school diploma or equivalent 13 63% $10.2 Median Hourly Earnings Entry Level Education High school diploma or equivalent Postsecondary non-degree award High school diploma or equivalent High school diploma or equivalent High school diploma or equivalent Less than high school High school diploma or Industrial Machinery Mechanics 13 225% $19.6 equivalent High school diploma or Welders, Cutters, Solderers, and Brazers 12 200% $16.3 equivalent Note: SOC (Standard Occupation Classification) 5-digit occupations are included by jobs in 2014. Extended proprietors include estimates for underreported self employment, proprietorships, trusts, partnerships and cooperatives. Rolling Machine Setters, Operators, and High school diploma or 12 500% $14.4 Tenders, Metal and Plastic equivalent Industrial Truck andsection Tractor Operators 12 140% $14.4 Less than high school 02 High school diploma or Source: EMSIand Class of WorkerMetal 2015.4 (QCEW, non-QCEW, self-employed and extended Pourers Casters, 11 0% proprietors). $12.6 equivalent 30
Universal Waste Lamps Emergency Procedures (Cont.) How should I clean up a broken fluorescent bulb? 1. Open a window and leave the room for 15 minutes or more. 2. Carefully scoop up the fragments and powder with stiff paper or cardboard and place them in a sealed plastic bag. Use disposable rubber gloves, if available (i.e., do not use bare hands). Wipe the area clean with damp paper towels or disposable wet wipes and place them in the plastic bag. Do not use a vacuum or broom to clean up the broken bulb on hard surfaces. 3. Place bag in a box to prevent leakage or puncturing of the bag 4.Transfer plastic bag to a broken lamp storage box 5. Wash your hands after disposing of the bag. If a fluorescent bulb breaks on a rug or carpet: 1. Use procedure above to scoop up fragments and power, use duct tape to pick up small fragments. 2. If vacuuming is needed after all visible materials are removed, vacuum the area where the bulb was broken, remove the vacuum bag (or empty and wipe the canister) and put the bag or vacuum debris into a sealed plastic bag. 3. Place bag in a box to prevent leakage or puncturing of the bag 4.Transfer plastic bag to a broken lamp storage box 5. Wash your hands after disposing of the bag. .