2,211 research outputs found
Electroweak Symmetry Breaking by Strong Dynamics and the Collider Phenomenology
We discuss the possible signatures in the electroweak symmetry breaking
sector by new strong dynamics at future hadron colliders such as the Tevatron
upgrade, the LHC and VLHC, and linear colliders. Examples include a
heavy Higgs-like scalar resonance, a heavy Technicolor-like vector resonance
and pseudo-Goldstone states, non-resonance signatures via enhanced gauge-boson
scattering and fermion compositeness.Comment: Summary report of the Strong Electroweak Symmetry Breaking Working
Group at 2001 Snowmass Summer Studie
Hybrid Neuro Fuzzy Control Based Isolated Asynchronous Generation Connect to Non-Linear Load
This paper deals with a hybrid neuro fuzzy control to isolated asynchronous generator (IAG) connected to non linear load. The proposed method utilizes an NN based on the least mean-square algorithm known as adaptive linear element to extract the fundamental component of load currents to control the voltage and the frequency of an IAG with load balancing in an integrated manner. The IELC is realized using zigzag/three single-phase transformers and a six-leg insulated-gate bipolar-transistor-based current controlled voltage-source converter, a chopper switch, and an auxiliary load on its dc bus. The proposed IELC, with the generating system, is modeled and simulated in MATLAB environment using Simulink and Simpower System toolboxes. The simulated results are validated with test results on a developed prototype to demonstrate the effectiveness of IELC for the control of an IAG feeding three-phase four-wire linear/nonlinear balanced/ unbalanced loads with neutral-current Keywords: Adaptive linear element (adaline), integrated electronic load controller (IELC), isolated asynchronous generator(IAG), small hydro generation, small hydropower generation, fuzzy
Adjustable Radio Technology Using BPSK Modulation
This research paper proposes a technique called a radio gating, called an RF gating, which consists of a symbolic change of the active time radio (ATR) on the RF foreground. This technique is particularly suitable for adapting the receiver's energy consumption to performance requirements without changing its architecture. In the specific case of binary turn-key signalling, the effect of this method on the Bit Error Rate (BER) performance is studied (BPSK).In existing it Minimum shift keying signalling will used in RF Power gating technique, it will have, low efficiency, and more bit error rate. In this paper to modified the Minimum shift keying technique to Binary shift keying technique. Finally this work is implemented in VHDL, and synthesized with Xilinx FPGA Vertex-5, and shown the area, power and delay variations
Adjustable Radio Technology Using BPSK Modulation
This research paper proposes a technique called a radio gating, called an RF gating, which consists of a symbolic change of the active time radio (ATR) on the RF foreground. This technique is particularly suitable for adapting the receiver's energy consumption to performance requirements without changing its architecture. In the specific case of binary turn-key signalling, the effect of this method on the Bit Error Rate (BER) performance is studied (BPSK).In existing it Minimum shift keying signalling will used in RF Power gating technique, it will have, low efficiency, and more bit error rate. In this paper to modified the Minimum shift keying technique to Binary shift keying technique. Finally this work is implemented in VHDL, and synthesized with Xilinx FPGA Vertex-5, and shown the area, power and delay variations
Access Equity: Driving Indiana Infrastructure and Communities to the Next Level
For over 25 years the American’s with Disabilities Act has required communities to plan for and transition their infrastructure and programs to become accessible. However, many communities still have a long way to go. This presentation takes compliance to the next level and engages community partners in the discussion of what access equity looks like and why it has to be the goal of a solid ADA transition plan
Deconstruction and Elastic pi pi Scattering in Higgsless Models
We study elastic pion-pion scattering in global linear moose models and apply
the results to a variety of Higgsless models in flat and AdS space using the
Equivalence Theorem. In order to connect the global moose to Higgsless models,
we first introduce a block-spin transformation which corresponds, in the
continuum, to the freedom to perform coordinate transformations in the
Higgsless model. We show that it is possible to make an "f-flat" deconstruction
in which all of the f-constants f_j of the linear moose model are identical;
the phenomenologically relevant f-flat models are those in which the coupling
constants of the groups at either end of the moose are small - corresponding to
the global linear moose. In studying pion-pion scattering, we derive various
sum rules, including one analogous to the KSRF relation, and use them in
evaluating the low-energy and high-energy forms of the leading elastic partial
wave scattering amplitudes. We obtain elastic unitarity bounds as a function of
the mass of the lightest KK mode and discuss their physical significance.Comment: 33 pages, JHEP3. Minor typos correcte
Quantum phase transition in a Dp-Dq system
Using the top-down approach, we study intersecting Dp-Dq brane configuration
in string theory and find examples, where there can be a quantum phase
transition at zero temperature induced by the violation of the
Breitenlohner-Freedman (BF) bound at IR, which is done essentially by a
combination of charge density and magnetic fields. In particular, there exists
a Berezinskii-Kosterlitz-Thouless (BKT) type of transition for D3-D5 and D5-D5
systems. The study of the BKT type of transition is initiated by Jensen et al.
[Phys. Rev. Lett. {\bf 105}, 041601 (2010) ] for a D3-D5 system with nonzero
charge density and a magnetic field. Here, we show that one can have the BKT
transition for a D3-D5 system even in the absence of charge density but
requires multiple magnetic fields. In this case the field theory lives in 2+1
dimensions, whereas for the D5-D5 type, the transition requires the presence of
both the charge density and magnetic fields and the dual field theory lives on
a 3+1 dimensional spacetime. We also study the D3-D7 system but it does not
show the BKT type of transition.Comment: 1+37 pages; v2 Chern-Simon term for D3-D5 case presented, typos fixed
and a reference added; v3 Minor corrections, Chern-Simon term for D2-D4,
D4-D6, and D5-D7 added, also an appendix and few references added; v4 Journal
versio
Influence of certain environmental parameters on mass production of rotifers: A review
Larviculture of many finfishes and crustaceans in aquaculture depends mainly on the live feed and its unavailability in sufficient quantity is hampering its expansion and culture progress all around the world. The most suitable feed for marine finfish larvae is the commonly available zooplankton species such as rotifer, copepods and Artemia nauplii. Among all, the live feed that has been demonstrated more successfully as the first feed for most of the marine finfish species is rotifer. Optimum conditions are required for better growth, reproduction and increased productivity of rotifers. The major factors that influence the population size of rotifer are temperature and salinity. Hence, the impact of environmental parameters with special focus on the salinity and temperature on the increase in biomass and smaller rotifer production is of utmost importance in the present scenari
Statistics of work performed on a forced quantum oscillator
Various aspects of the statistics of work performed by an external classical
force on a quantum mechanical system are elucidated for a driven harmonic
oscillator. In this special case two parameters are introduced that are
sufficient to completely characterize the force protocol. Explicit results for
the characteristic function of work and the respective probability distribution
are provided and discussed for three different types of initial states of the
oscillator: microcanonical, canonical and coherent states. Depending on the
choice of the initial state the probability distributions of the performed work
may grossly differ. This result in particular holds also true for identical
force protocols. General fluctuation and work theorems holding for
microcanonical and canonical initial states are confirmed
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