Higgs Resonance Studies At The First Muon Collider

Higgs resonance signals and backgrounds at the First Muon Collider are discussed. Effects due to beam polarization and background angular distributions (forward-backward charge asymmetries) are examined. The utility of those features for improving precision measurements and narrow resonance ``discovery'' scans is described.Comment: 6 pages, latex. Presented at the Workshop on Physics at the First Muon Collider and at the Front End of a Muon Collider, Fermilab, November 199

Pneumatic PID with Ultrasonic Distance Feedback

Indiana University Purdue University IndianapolisIndiana University–Purdue University Indianapolis (IUPUI) is initiating a new course to the Electrical & Computer Engineering Technology (ECET) Curriculum in the spring of 2019, this course is Advanced Process Controls. The lab curriculum for this course needed a functional application to demonstrate the use of a proportional–integral–derivative controller (PID). The lab location for this course has one important limitation, specifically no use of water; therefore, our design integrates the use of pneumatics. Using the lab’s existing Rockwell Automation PLC and software package, this design uses the PLC’s PID instruction to maintain an extension length on a pneumatic single acting cylinder. This closed control loop consists of the PLC and analog I/O card, an ultrasonic distance sensor, one pneumatic cylinder for the controlled variable, one pneumatic cylinder as a disturbance, and two Proportion-Air QB1X analog controlled pneumatic solenoids. The final design in summary, uses the ultrasonic sensor to provide feedback to the PID with the current extended length of the pneumatic cylinder. This establishes any error, and the properly tuned PID uses this feedback to respond accordingly to ensure the desired extension length of the cylinder is maintained.Electrical Engineering Technolog

Effect of solar heat flux and thermal loading on the flow distribution within the riser pipes of a closed-loop solar thermo-syphon hot water system

Solar energy is one of the main sources of renewable energy that is abundantly available throughout the world. Solar energy can be used for useful purposes through a number of mechanical artefacts. One such artefact is known as Thermo-syphon, which typically contains water as its working fluid. One of the major applications of Thermo-syphon is within the residential and industrial units, where a constant supply of hot water is required. The use of Computational Fluid Dynamics (CFD) based solvers has recently been proven capable of predicting the flow behaviour within thermo-syphons with reasonable accuracy. Hence, the present study focuses on using a commercial CFD based solver to predict the flow behaviour within the riser pipes of a thermo-syphon with varying solar heat flux and thermal loading conditions. In order to qualitatively and quantitatively analyse the flow structure within the riser pipes of the thermo-syphon, velocity magnitude and static temperature distributions within these pipes is analysed in detail. The results depict that the solar heat flux has a significant impact on the velocity magnitude and static temperature profiles within the riser pipes. Furthermore, it has been observed that the thermal loading has negligible effects on the velocity magnitude and static temperature profiles within the riser pipes. The data has also been used to develop novel design correlations

Searching for a W' at the Next-Linear-Collider using Single Photons

We examine the sensitivity of the process e+e- -> nu nubar + gamma to additional W-like bosons which arise in various models. The process is found to be sensitive to W' masses up to several TeV.Comment: 8 pages, 8 figures, Latex. To appear in proceedings of "MRST '99: High Energy Physics at the Millenium", May 10-12, 1999, Carleton U., Ottawa (AIP

The Effect of Rising Prices on the Consumption Pattern and Market Fluctuations (A Field Study in Irbid City – Jordan)

This study discusses the negative effects of rising prices on the consumption pattern of the Jordanian citizen. The researcher recognized the significance of such phenomena on the consumption preferences of the individual, who tends to choose low-quality products, or content with some goods and services in favor of others. Certainly, this would have social and health effects on the long run.The change in the consumption pattern has negative effects on the entire marketing processes. It is noticed that there is dynamic market fluctuations with each price rise, so that the demand on specific market sectors declines in favor of others. This fluctuation requires studying factors that change the consumption pattern on the short run, such as income, prices, cultural dimensions and consumer perceptions, considering the absence of effective governmental financial policies.For example, the study showed that most individuals in Jordan avoid using heating (worming) fuel, despite of the governmental financial support. This behavior is due to the negative consumption culture related to facing cold weather, in addition to the high prices. These type of consumption patterns causes market fluctuations in favor of other market sectors as education, private means of transportation, and so on, as shown in the statistical analysis section of the study.Keywords: prices rising, consumer behavior, consumption pattern, motivations, attitudes, market-fluctuations, hierarchy of human needs, pricing policy, consumer protection, market structure, inflation rates

The Effect of Rising Prices on the Consumption Pattern and Market Fluctuations (A Field Study in Irbid City – Jordan)

This study discusses the negative effects of rising prices on the consumption pattern of the Jordanian citizen. The researcher recognized the significance of such phenomena on the consumption preferences of the individual, who tends to choose low-quality products, or content with some goods and services in favor of others. Certainly, this would have social and health effects on the long run.The change in the consumption pattern has negative effects on the entire marketing processes. It is noticed that there is dynamic market fluctuations with each price rise, so that the demand on specific market sectors declines in favor of others. This fluctuation requires studying factors that change the consumption pattern on the short run, such as income, prices, cultural dimensions and consumer perceptions, considering the absence of effective governmental financial policies.For example, the study showed that most individuals in Jordan avoid using heating (worming) fuel, despite of the governmental financial support. This behavior is due to the negative consumption culture related to facing cold weather, in addition to the high prices. These type of consumption patterns causes market fluctuations in favor of other market sectors as education, private means of transportation, and so on, as shown in the statistical analysis section of the study.Keywords: prices rising, consumer behavior, consumption pattern, motivations, attitudes, market-fluctuations, hierarchy of human needs, pricing policy, consumer protection, market structure, inflation rates

Effect of the shape of connecting pipes on the performance output of a closed-loop hot water solar Thermo-syphon

In order to conserve the environment from pollution, which is caused by the use of the fossil fuels, numerous research works have been carried out in renewable energy area to minimize the dependency on the fossil fuels. There are several energy sources naturally available, and solar energy is considered to be the best amongst them. Therefore it became a motivating area for the researchers in recent years. Thermo-syphon is one of many devices that use solar energy for power generation. Thermo-syphon converts solar energy into internal energy of the working fluid; mainly water. In this work, a computational fluid dynamics (CFD) code has been used to analyse the natural convection phenomenon in a thermo-syphon. The thermo-syphon model consist of steel pipes with an internal diameter of 25mm, along with a condenser having diameter equal to five times the pipe’s diameter, has been considered. The study has been carried out under no-loading conditions, for two thermo-syphon models comprising of straight and helical shaped pipes of 10, 20 and 30. A practical solar heat flux of 500W/m2 has been applied on the pipes. The numerical results depict that the working fluid within the condenser, in case of helical pipes, gains higher temperature as compared to the straight pipes. Furthermore, increase in the number of helical pipes has negligibly small effect on the temperature of the fluid within the condenser, and hence on the performance output of the thermo-syphon

1H NMR and kinetics studies of the reaction of 4-methyl, 4-bromo and 3-trifluoromethyl benzyltriflones with aromatic nitro-compounds

AbstractRate measurements are reported for the reactions in methanol of carbanions derived from benzyltriflones, 2a–c, with 4-nitrobenzofurazan derivatives, 4a and 4b, to give anionic σ-adducts. 1H NMR studies in DMSO-d6 of the reaction of benzyltriflones, 2, and 4-nitrobenzofurazan, 4a, in the presence of triethylamine are consistent with products formed by the elimination of trifluoromethyl sulfinic acid from σ-adducts initially formed by carbanion attack at the 5-position of 4a. Evidence for the high steric requirements of the benzyltriflone anions come from the low value of β; the slope of the linear plot of values of logk5 versus pKa