161 research outputs found
Performance Analysis of Farrow Structure Based FBMC-OQAM System
No full textAbstractFarrow structure is used in the efficient implementation of high order filters. The number of unknown coefficients is much less in Farrow structure based implementation, in comparison with the direct form implementation of FIR filters. Some predefined multipliers can also be used in this method. Since they are known apriori they will not add much to the complexity of the system. It is seen that a relatively strong correlation exists among the adjacent impulse response coefficients of the frequency selective filters. This fact is exploited in the Farrow structure to reduce the number of multipliers required for the implementation of desired filter. And these Farrow coefficients are used for representing the polyphase components of the desired filter. This Farrow structure based prototype filter is used for implementing an FBMC-OQAM system. BER performance of Farrow structure based FBMC-OQAM system is studied and found comparable with that of existing FBMC-OQAM system
Seward's folly: a new look at the Alaska Purchase
No full textIncludes bibliographical references and index.The Alaska Purchase--denounced at the time as 'Seward's Folly' but now seen as a masterstroke--is well known in American history. But few know the rest of the story. Lee Farrow offers a detailed account of just what the Alaska Purchase was, how it came about, its impact at the time, and more. Farrow shows why both America and Russia had plenty of good reasons to want the sale to occur, including Russia's desire to let go of an unprofitable, hard-to-manage colony and the belief in the United States that securing Alaska could help the nation gain control of British Columbia and generate closer trade ties with Asia . Farrow also delves into the implications of the deal for foreign policy and international diplomacy far beyond Russia and the United States at a moment when the global balance of power was in question.--Provided by publisher.Some mysterious sympathy: the foundations of friendship -- Evident advantages: origins and objectives -- Seward's chimerical project: public reaction and ratification -- No longer Russian America: taking possession of Alaska -- Paying for the "new national ice-house": approval and appropriation -- Very uneasy and vexed: international reactions to the purchase -- That snow-bound wilderness: from treaty to territory
Distribution of Salmonella serovars in breeding, nursery, and grow-to-finish pigs, and risk factors for shedding in ten farrow-to-finish swine farms in Alberta and Saskatchewan
No full textThe study objectives were to investigate Salmonella prevalence, serovar distribution, and risk factors for shedding in 10 purposively selected farrow-to-finish farms in Saskatchewan and Alberta. Pooled fecal samples from the breeding and growfinish phases and individual fecal samples from breeding, nursery, and grow-finish pigs were cultured for Salmonella; serotyping of isolates was performed. Pig and pen characteristics were recorded for each pig and pen sampled. Overall, 407/1143 (36%) of samples were Salmonella positive; within-farm prevalence ranged from 1% to 79%. Sows, nursery, and grow-finish pigs accounted for 43%, 29%, and 28% of positive samples, respectively. More Salmonella were detected in pooled pen than individual pig samples (P<0.001). Among 418 Salmonella isolates, there were 19 distinct serovars; the most common were S. Derby (28.5%), S. Typhimurium, var. Copenhagen (19.1%), S. Putten (11.8%), S. Infantis (6.8%), and S. Mbandaka (6.1%). Sows were more likely to shed Salmonella than nursery or grow-finisher (OR 2.9, P<0.001) pigs. Pelleted feed (OR 8.2, P<0.001) and nose-to-nose pig contact through pens (OR 2.2, P=0.005) were associated with increased Salmonella prevalence. Significant differences in serovar distribution were detected among production phases. The use of pooled pen samples is recommended as a more efficient means for accurate evaluation of Salmonella status in different phases of pig production. The breeding herd might be an important source of Salmonella persistence within farrow-to-finish farms and should be targeted in control efforts. The latter might also apply to the use of pelleted feed, which remains the most consistently reported significant risk factor for Salmonella shedding in pigs.Accession Number: 20103196664. Publication Type: Journal Article. Language: English. Language of Summary: French. Number of References: 32 ref. Subject Subsets: Veterinary Science; Veterinary Science; Animal Nutrition; Pig Scienc
Birmingham News sleeve BN0037482
No full textGala III / Mrs. Athena Pitchess / Sister Xavier / Eleanor Lambert/ Photo of several honorees at Gala III entering St. Vincent's Hospital / St. Vincent's Hospital / [Work order included
Improving the Regulatory Analysis of the Cooling Water Intake Structure Rule: What Does an Economist Want?
No full textAs part of an edited volume devoted to the usefulness of benefit-cost analysis to inform regulatory review, this chapter presents a case study of the regulation of cooling water intake structures (CWIS) at existing power plants. The chapter first focuses on the consistency of the CWIS benefit-cost analysis with quality criteria to which the agency might have been expected to adhere. Second, criteria and outcomes with respect to decision rules for the selected alternatives are investigated. Finally, the challenge faced by agency analysis is described due to the difficulty in linking ecological and economic impacts. Suggestions for improvement are noted. As of the date of writing, the regulation is under review by the Supreme Court.Water, regulation, benefit-cost
The synthesis and characterization of poly[oxy(2-methyl-l,4-phenylene)oxyterephthaloyl-co-oxy(2-methyl-l,4-phenylene)oxy-l,4-phenylenediacetoyl] and poly[oxy(2-phenyl-1,4-phenylene)- oxyterephthaloyl-co-oxy (2-phenyl-1,4-phenylene)oxy-l ,4- phenylenediacetoyl], 1989
No full textEffects of pre-farrow feeding time on the farrowing time and duration in sows and litter outcomes
No full textThe objective of the study was to determine the effect of time of feeding pre-farrow on farrowing time and duration. Two hundred and ninety-eight (298) mixed parity sows were assigned to morning (0700 h) or evening (1900 h) feeding upon entry into the farrowing room until farrowing. More sows from the morning-fed group farrowed between 0700 and 1500 h than the evening-fed group (51.43 vs. 21.95%, PThe presentation of the authors' names and (or) special characters in the title of the pdf file of the accepted manuscript may differ slightly from what is displayed on the item page. The information in the pdf file of the accepted manuscript reflects the original submission by the author
Erratum: Corrigendum to “Development and initial validation of the Role Strain Questionnaire for Junior Athletes (RSQ-JA)” (Psychology of Sport and Exercise (2016) 24 (168–178)(S146902921630022X)(10.1016/j.psychsport.2016.02.004))
No full textThe authors regret to let us know that there is an authorship change in the article. The authors would like add another author to the article namely Fiona Chun Man Ling, as they believe that she has made a substantial intellectual contribution to this work and is deserving authorship. As such, they would like to change the reference of the article to: Fleur E.C.A. van Rens a, *, Erika Borkoles b, Damian Farrow a, c, Thomas Curran d, Fiona Chun Man Ling a, Remco C.J. Polman e The authors would like to apologise for any inconvenience caused
Detection of Trace Molecular Species using Degenerate Four-Wave Mixing
No full text. R. L. Farrow and D. J. Rakestraw, Science, 257, 1894 (1992).Author Institution: Combustion Research Facility, Sandia National Laboratories; Combustion Research Facility, Physikalisch Chemisches InstitutDuring the past several years it has become apparent that coherent, nonlinear techniques can provide sensitive spectroscopic probes for trace molecular species. The high collimation of the signal beam permits high detection efficiency, stray-light rejection, and remote probing. Relatively high sensitivity is achieved by making use of multiple one photon resonances. Degenerate four-wave mixing, DFWM, is one variation which makes repeated use of a single one-photon resonance and can provide sub-Doppler resolution. This presentation will review some of the recent progress using DFWM as a spectroscopic . Particular attention will be given to the use of infrared DFWM to detect polyatomic molecules such as methane and acetylene
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