Academic literature on the topic 'Quote cancellations'
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Journal articles on the topic "Quote cancellations"
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Dixit, Shubhra, and Deepak Nagaria. "LMS Adaptive Filters for Noise Cancellation: A Review." International Journal of Electrical and Computer Engineering (IJECE) 7, no. 5 (October 1, 2017): 2520. http://dx.doi.org/10.11591/ijece.v7i5.pp2520-2529.
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This paper reviews the past and the recent research on Adaptive Filter algorithms based on adaptive noise cancellation systems. In many applications of noise cancellation, the change in signal characteristics could be quite fast which requires the utilization of adaptive algorithms that converge rapidly. Algorithms such as LMS and RLS proves to be vital in the noise cancellation are reviewed including principle and recent modifications to increase the convergence rate and reduce the computational complexity for future implementation. The purpose of this paper is not only to discuss various noise cancellation LMS algorithms but also to provide the reader with an overview of the research conducted.
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KONG, OTTO C. W. "ON EXTENDED ELECTROWEAK SYMMETRIES." International Journal of Modern Physics A 20, no. 06 (March 10, 2005): 1295–302. http://dx.doi.org/10.1142/s0217751x05024195.
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We discuss extensions of the Standard Model through extending the electroweak gauge symmetry. An extended electroweak symmetry requires a list of extra fermionic and scalar states. The former is necessary to maintain cancellation of gauge anomalies, and largely fixed by the symmetry embedding itself. The latter is usually considered quite arbitrary, so long as a vacuum structure admitting the symmetry breaking is allowed. Anomaly cancellation may be used to link the three families of quarks and leptons together, given a perspective on flavor physics. It is illustrated lately that the kind of models may also have the so-called little Higgs mechanism incorporated. This more or less fixes the scalar sector and take care of the hierarchy problem, making such models of extended electroweak symmetries quite appealing candidates as TeV scale effective field theories.
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Barnard, J. C., E. I. Kassianov, T. P. Ackerman, K. Johnson, B. Zuberi, L. T. Molina, and M. J. Molina. "Estimation of a "radiatively correct" black carbon specific absorption during the Mexico City Metropolitan Area (MCMA) 2003 field campaign." Atmospheric Chemistry and Physics 7, no. 6 (March 27, 2007): 1645–55. http://dx.doi.org/10.5194/acp-7-1645-2007.
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Abstract. During the Mexico City Metropolitan Area (MCMA) field campaign of 2003, measurements of the shortwave radiation field allowed the inference of the black carbon (BC) specific absorption, αλ, defined as the monochromatic absorption cross section per unit mass (with units of m2/g). The averaged values of αλ derived from the method here are either 8.9 m2/g or 8.2 m2/g at 500 nm, depending upon the physical and optical parameters assumed for BC. These results are reasonably consistent with those of Schuster et al. (2005), 9.5 m2/g, and Baumgartner et al. (2002), 7.0 m2/g, both measured at 550 nm. The αλ values reported in this paper should only be considered effective, "radiatively correct" values because when used in radiative transfer calculations the calculated irradiances match the measured irradiances at 500 nm. The specific absorption so defined can assume a wide range of values, depending upon: (1) the assumptions made prior to the retrieval (e.g., shell/core aerosol configuration), and (2) values chosen for BC density and refractive index. The range of possible values is large, corresponding to a "worst case" uncertainty of about ±70%, assuming that all errors are additive and of the same sign so that no error cancellation occurs.
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Quoc, V. D. "Robust Correction Procedure for Accurate Thin Shell Models via a Perturbation Technique." Engineering, Technology & Applied Science Research 10, no. 3 (June 7, 2020): 5832–36. http://dx.doi.org/10.48084/etasr.3615.
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This research proposes a robust correction procedure to improve inaccuracies around edges and corners inherent to thin shell electromagnetic problems by means of perturbation technique. This proposal is developed with three processes: A classical thin shell approximation replaced with an impedance-type interface condition across a surface is first considered and then a volume correction is introduced to overcome the thin shell approximation. However, the volume correction is quite sensitive to cancellation errors, with dramatic effects in the calculation of the local fields near edges and corners. Therefore, a robust correction procedure is added to improve cancellation errors of the volume correction. Each step of the developed method is validated on the practical problem.
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Jabłoński, Bartłomiej. "Transfer of Profit to Shareholders at Warsaw Stock Exchange in the Period 2009–2013." Folia Oeconomica Stetinensia 16, no. 1 (December 1, 2016): 147–73. http://dx.doi.org/10.1515/foli-2016-0009.
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Abstract The Author of the article presents the results of research devoted to the forms of transfer of profit to shareholders of the companies quoted at Warsaw Stock Exchange in the period 2009–2013. The Author concluded that there are features in the group of dividend companies and another group – that of dividend companies which additionally execute share redemption and cancellation – which make them different.
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Bodznick, D., J. C. Montgomery, and M. Carey. "Adaptive mechanisms in the elasmobranch hindbrain." Journal of Experimental Biology 202, no. 10 (May 15, 1999): 1357–64. http://dx.doi.org/10.1242/jeb.202.10.1357.
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The suppression of self-generated electrosensory noise (reafference) and other predictable signals in the elasmobranch medulla is accomplished in part by an adaptive filter mechanism, which now appears to represent a more universal form of the modifiable efference copy mechanism discovered by Bell. It also exists in the gymnotid electrosensory lateral lobe and mechanosensory lateral line nucleus in other teleosts. In the skate dorsal nucleus, motor corollary discharge, proprioceptive and descending electrosensory signals all contribute in an independent and additive fashion to a cancellation input to the projection neurons that suppresses their response to reafference. The form of the cancellation signal is quite stable and apparently well-preserved between bouts of a particular behavior, but it can also be modified within minutes to match changes in the form of the reafference associated with that behavior. Motor corollary discharge, proprioceptive and electrosensory inputs are each relayed to the dorsal nucleus from granule cells of the vestibulolateral cerebellum. Direct evidence from intracellular studies and direct electrical stimulation of the parallel fiber projection support an adaptive filter model that places a principal site of the filter's plasticity at the synapses between parallel fibers and projection neurons.
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Bhutia, Tshering P., Neelima Pradhan, Tsewang D. Bhutia, Rajni, and Sonam D. Bhutia. "Management of intra operative priapism after spinal anesthesia with intravenous glycopyrrolate and intracorporeal injection of ultra low dose of phenylephrine- A case report." Indian Journal of Clinical Anaesthesia 8, no. 2 (June 15, 2021): 348–50. http://dx.doi.org/10.18231/j.ijca.2021.065.
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Priapism following neuraxial anesthesia or general anesthesia is a rare but problematic event which may result in delay, complication or even cancellation of scheduled operations in urological endoscopic procedures. We present a case of successful management of intra operative priapism in a 32 years old male under spinal anesthesia posted for Ureteroscopic Lithotripsy (URSL) of bilateral ureteric stone.Different therapies for management of intra operative priapism have been quoted in the past like intracorporeal injection of vasopressors, dorsal penile nerve block, intravenous glycopyrrolate, intravenous ketamine/dexmedetomidine etc. In this case we treated with intravenous glycopyrrolate and intracorporeal injection of ultra low dose phenylephrine.
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Ribeiro, Bernard. "August used to be a quiet month…" Bulletin of the Royal College of Surgeons of England 89, no. 9 (October 1, 2007): 302–3. http://dx.doi.org/10.1308/147363507x240864.
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Against the background of Modernising Medical Careers (MMC) and the Medical Training Application Service (MTAS), August came and went without quite the catastrophe the newspapers predicted. This was because we had feared for the worst and had made preparations to ensure that our patients' care would not be affected. A recent survey by doctors.net of 180 consultants, chosen to be representative of the NHS by region and medical specialty, reported concerns that patient care had been affected during August with cancelled clinics and operating lists, although almost half of all respondents did not find any evidence of such cancellations. It was noted that there was low morale among some junior doctors who had been appointed and concern that they had been pushed into roles for which they were not adequately trained.
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Okon, J. S., and L. J. Ratliff. "Filtrations, closure operations and prime divisors." Mathematical Proceedings of the Cambridge Philosophical Society 104, no. 1 (July 1988): 31–46. http://dx.doi.org/10.1017/s0305004100065221.
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AbstractLet ƒ = {In}n ≽ 0 be a filtration on a ring R, let(In)w = {x ε R; x satisfies an equation xk + i1xk − 1 + … + ik = 0, where ij ε Inj} be the weak integral closure of In and let ƒw = {(In)w}n ≽ 0. Then it is shown that ƒ ↦ ƒw is a closure operation on the set of all filtrations ƒ of R, and if R is Noetherian, then ƒw is a semi-prime operation that satisfies the cancellation law: if ƒh ≤ (gh)w and Rad (ƒ) ⊆ Rad (h), then ƒw ≤ gw. These results are then used to show that if R and ƒ are Noetherian, then the sets Ass (R/(In)w) are equal for all large n. Then these results are abstracted, and it is shown that if I ↦ Ix is a closure (resp.. semi-prime, prime) operation on the set of ideals I of R, then ƒ ↦ ƒx = {(In)x}n ≤ 0 is a closure (resp., semi-prime, prime) operation on the set of filtrations ƒ of R. In particular, if Δ is a multiplicatively closed set of finitely generated non-zero ideals of R and (In)Δ = ∪KεΔ(In, K: K), then ƒ ↦ ƒΔ is a semi-prime operation that satisfies a cancellation law, and if R and ƒ are Noetherian, then the sets Ass (R/(In)Δ) are quite well behaved.
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Pradeepa, V. "Covid-19 Pandemic and its Effect on Indian Industry." ComFin Research 9, no. 1 (January 1, 2021): 22–25. http://dx.doi.org/10.34293/commerce.v9i1.3512.
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The outbreak of the COVID-19 pandemic is a completely unexpected shock to the economy. The Government of India has announced measures like food security and healthcare measures, incentives to a few sectors, tax deadline extensions, housing loan moratorium scheme, time extension for electricity bill payment, cancellation, postponement of examinations, etc. to tackle this pandemic situation. With the extension of the country wide lockdown, the global economic downturn and related disruption of demand and supply chains, the economy is likely to face a protracted slowdown. This study focused on the impact of the pandemic on various sectors like manufacturing industries, banking, real estate, textile, agriculture, education, healthcare, electronics, and services. The effect of COVID-19 is going to last for quite some time, even though primary activities and industries have resumed their routine work.
Dissertations / Theses on the topic "Quote cancellations"
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Virgilio, Gianluca. "Is high-frequency trading a threat to financial stability?" Thesis, University of Hertfordshire, 2017. http://hdl.handle.net/2299/18841.
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The purpose of this thesis is: (i) to produce an in-depth data analysis and computer-based simulations of the market environment to investigate whether financial stability is affected by the presence of High-Frequency investors; (ii) to verify how High-Frequency Trading and financial stability interact with each other under non-linear conditions; (iii) whether non-illicit behaviours can still lead to potentially destabilising effects; (iv) to provide quantitative support to the theses, either from the audit trail data or resulting from simulations. Simulations are provided to test whether High-Frequency Trading: (a) has an impact on market volatility, (b) leads to market splitting into two tiers; (c) takes the lion's share of arbitrage opportunities. Audit trail data is analysed to verify some hypotheses on the dynamics of the Flash Crash. The simulation on the impact of High-Frequency Trading on market volatility confirms that when markets are under stress, High-Frequency Trading may cause volatility to significantly increase. However, as the number of ultra-fast participants increases, this phenomenon tends to disappear and volatility realigns to its standard values. The market tiering simulation suggests that High-Frequency traders have some tendency to deal with each other, and that causes Low-Frequency traders also to deal with other slow traders, albeit at a lesser extent. This is also a kind of market instability. High-Frequency Trading potentially allows a few fast traders to grab all the arbitrage-led profits, so falsifying the Efficient Market Hypothesis. This phenomenon may disappear as more High-Frequency traders enter the competition, leading to declining profits. Yet, the whole matter seems a dispute for abnormal gains only between few sub-second traders. All simulations have been carefully designed to provide robust results: the behaviours simulated have been drawn from existing literature and the simplifying assumptions have been kept to a minimum. This maximises the reliability of the results and minimizes the potential of bias. Finally, from the data analysis, the impact of High-Frequency Trading on the Flash Crash seems significant; other sudden crashes occurred since, and more can be expected over the next future. Overall, it can be concluded that High-Frequency Trading shows some controversial aspects impacting on financial stability. The results are at a certain extent confirmed by the audit trail data analysis, although only indirectly, since the details allowing the match between High-Frequency traders and their behaviour are confidential and not publicly available Nevertheless, the findings about HFT-induced volatility, market segmentation and sub-optimal market efficiency, albeit not definitive, suggest that careful monitoring by regulators and policy-makers might be required.
Book chapters on the topic "Quote cancellations"
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Yıldırım, İsmail, and Abdul Rafay. "Anti-Money Laundering in the Insurance Sector." In Money Laundering and Terrorism Financing in Global Financial Systems, 108–27. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8758-4.ch005.
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The insurance sector mainly consists of insurance companies, insurance agencies, brokers, and reinsurers. For many years, false damages, without being linked to money, have undoubtedly been the most attractive aspect of the insurance industry. However, for quite some time, the insurance sector is also used by money launders to launder crime revenues due to the increasing volume of money transactions day by day. In order to mitigate the risk of money laundering, the insurance sector in Turkey is implementing the compliance program of Turkish Law No: 5549 on “prevention of laundering proceeds of crime.” The main components of this compliance program are the identification of the customers and reporting of suspicious transactions. It is concluded that the risk of money laundering should also be considered during damages and compensation payments, especially in life and pension companies. Policy and contract cancellations should be periodically reviewed, and the reasons for cancellations should be documented well.
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Silva, Ana Carolina Pereira de Vasconcelos, Daniel Bouzon Nagem Assad, and Thais Spiegel. "Capacity Decision in Emergency Hospital Operation Rooms." In Advances in Business Information Systems and Analytics, 140–55. IGI Global, 2018. http://dx.doi.org/10.4018/978-1-5225-3226-2.ch006.
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The operations management is a multidisciplinary field that investigates, for instance, the design, management and processes improvement focused on the development, production, distribution and delivery of products and services, encompassing activities such as the implementation of policies, making quota decisions, identification and problem solving, response to uncertainty, among others. Regarding the resources dimensioning in hospitals, the Brazilian scenario is limited to legislative instruments that assume a prior and added sizing. This chapter uses a discrete event simulation tool to set the amount of operation rooms needed for patient care in an emergency department, so that emergency patients have guaranteed compliance, minimizing the cancellation of elective surgeries because of this type of demand. As a result, it was found that the minimum amount established by normative instruments was not appropriate to the specific requirements of the organization.
Conference papers on the topic "Quote cancellations"
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Lin, Jeng-Wen, Chih-Wei Huang, and Hao-Ping Wen. "Repetitive Control Based Disturbance Cancellation Using Iterative Basis Function Feedback With Wavelet Filtering." In ASME 2008 Pressure Vessels and Piping Conference. ASMEDC, 2008. http://dx.doi.org/10.1115/pvp2008-61105.
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This paper presents repetitive control laws in real time using matched basis functions. These laws adjust the command given a feedback control system in order to eliminate tracking errors, resulting from in general a periodic disturbance and a non-periodic disturbance. The periodic error can be reduced by linear basis functions while the non-periodic error by the projection algorithm along with the wavelet filtering. The control laws do not use a system model, but instead the control action is chosen to be a linear combination of chosen input basis functions, and the corresponding output basis functions are obtained, nominally by experiment. The repetitive control laws use the projection algorithm to compute the output components on the output basis functions, and then the corresponding input components are adjusted accordingly. The output signals are reconstructed via the wavelet filtering before they are feedback to the controller. Numerical experiments show that the repetitive controllers are quite effective. In particular, the output tracking errors are further reduced because of the introduction of the wavelet filtering when compared to the previous work. In general, the repetitive control laws developed here can be used for the purpose of precision machinery control.
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Emerson, Benjamin, Kelvin Murphy, and Tim Lieuwen. "Flame Density Ratio Effects on Vortex Dynamics of Harmonically Excited Bluff Body Stabilized Flames." In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/gt2013-94284.
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This paper presents an experimental study of acoustically forced bluff body stabilized flames, motivated by the problem of combustion instabilities. The goal of the work is to better understand the flame and flow behavior as functions of the proximity of the acoustic frequency to natural hydrodynamic instability frequencies. It is well known that iso-density, high Re bluff body wakes are globally unstable, exhibiting the Von Karman vortex street. In reacting flows, however, this global mode is suppressed if the density ratio across the flame is sufficiently high. Thus, the density ratio is an important parameter that influences the global mode growthrate. In this study, the flame was longitudinally forced over a range of hydrodynamic global mode to forcing frequency ratios, density ratios, and forcing amplitudes. Longitudinal forcing leads to the symmetric rollup of the two separating shear layers. When the forcing frequency is in the vicinity of the wake’s global mode frequency, the global mode locks into the forcing frequency, and the symmetric shear layers quickly stagger as they convect downstream, leading to a large scale, sinuous flapping of the wake and flame. The axial position at which staggering occurs is a function of the forcing amplitude and the proximity of the forcing frequency to the global mode frequency. The lock-in phenomenon amplifies the flame’s motion at the forcing frequency. However, if the vortices stagger to a fully sinuous structure, this causes a significant reduction in the flame’s oscillatory heat release through phase cancellation of the upper and lower flame branches. Therefore, if a low density ratio flame is subjected to longitudinal acoustic forcing near its global mode frequency, it will respond with weaker heat release fluctuations than it would away from lock-in. This is true even though the local degree of flame flapping is quite significant. Thus, the results of this study show some phenomena that contradict conventional notions, namely that forcing a globally unstable flow near its global mode frequencies can lead to diminished local heat release oscillations.