Agreed-upon procedures report on the City of Villisca, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Villisca, Iowa for the period July 1, 2013 through June 30, 2014

EEG signal analysis via a cleaning procedure based on multivariate empirical mode decomposition

Artifacts are present in most of the electroencephalography (EEG) recordings, making it difficult to interpret or analyze the data. In this paper a cleaning procedure based on a multivariate extension of empirical mode decomposition is used to improve the quality of the data. This is achieved by applying the cleaning method to raw EEG data. Then, a synchrony measure is applied on the raw and the clean data in order to compare the improvement of the classification rate. Two classifiers are used, linear discriminant analysis and neural networks. For both cases, the classification rate is improved about 20%.

Agreed-upon procedures report on the City of Central City, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Central City, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Blue Grass, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Blue Grass, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Bedford, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Bedford, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Pleasant Plain, Iowa for the period January 1, 2014 through December 31, 2014

Agreed-upon procedures report on the City of Pleasant Plain, Iowa for the period January 1, 2014 through December 31, 2014

Agreed-upon procedures report on the City of Patterson, Iowa for the period December 1, 2013 through November 30, 2014

Agreed-upon procedures report on the City of Patterson, Iowa for the period December 1, 2013 through November 30, 2014

Agreed upon procedures report on the City of Galt, Iowa for the period August 1, 2013 through July 31, 2014

Agreed upon procedures report on the City of Galt, Iowa for the period August 1, 2013 through July 31, 2014

Airborne exposures to monoethanolamine, glycol ethers, and benzyl alcohol during professional cleaning: a pilot study

A growing body of epidemiologic evidence suggests an association between exposure to cleaning products and respiratory dysfunction. Due to the lack of quantitative assessments of respiratory exposures to airborne irritants and sensitizers among professional cleaners, the culpable substances have yet to be identified.Purpose: Focusing on previously identified irritants, our aims were to determine (i) airborne concentrations of monoethanolamine (MEA), glycol ethers, and benzyl alcohol (BA) during different cleaning tasks performed by professional cleaning workers and assess their determinants; and (ii) air concentrations of formaldehyde, a known indoor air contaminant. METHODS: Personal air samples were collected in 12 cleaning companies, and analyzed by conventional methods. RESULTS: Nearly all air concentrations [MEA (n = 68), glycol ethers (n = 79), BA (n = 15), and formaldehyde (n = 45)] were far below (<1/10) of the corresponding Swiss occupational exposure limits (OEL), except for ethylene glycol mono-n-butyl ether (EGBE). For butoxypropanol and BA, no OELs exist. Although only detected once, EGBE air concentrations (n = 4) were high (49.48-58.72mg m(-3)), and close to the Swiss OEL (49mg m(-3)). When substances were not noted as present in safety data sheets of cleaning products used but were measured, air concentrations showed no presence of MEA, while the glycol ethers were often present, and formaldehyde was universally detected. Exposure to MEA was affected by its amount used (P = 0.036), and spraying (P = 0.000) and exposure to butoxypropanol was affected by spraying (P = 0.007) and cross-ventilation (P = 0.000). CONCLUSIONS: Professional cleaners were found to be exposed to multiple airborne irritants at low concentrations, thus these substances should be considered in investigations of respiratory dysfunctions in the cleaning industry; especially in specialized cleaning tasks such as intensive floor cleaning.

Agreed-upon procedures report on the City of Cambridge, Iowa for the period August 1, 2013 through July 31, 2014

Agreed-upon procedures report on the City of Cambridge, Iowa for the period August 1, 2013 through July 31, 2014

Automatització d'un sistema de neteja Cleaning In Place

El projecte es realitza en una empresa embotelladora d'aigua, on el procés d'embotellat estàautomatitzat. En canvi les tasques de sanitització de les línies es realitzen de maneramanual.Actualment, l'empresa es troba en fase de llançament de nous productes (refrescos) i pertant serà necessària una nova línia de producció. Es vol que la tasca de neteja dels equipsinstal•lats per a la realització dels nous productes sigui totalment automatitzada.El sistema de neteja automatitzat escollit és del tipus Cleaning In Place (CIP), que consisteixa netejar sense haver de desmuntar cap part del procés, garantint la correcta sanitització detotes les parts que estan en contacte amb el producte durant el procés de producció. Esdissenya el mòdul mesclador on es faran els xarops que formen part de les noves begudes.El disseny s'ha d'adaptar a les necessitats productives i a les exigències pròpies d'unasanitització.Es realitza la selecció dels actuadors, pre-actuadors i sensors necessaris per al'automatització del procés de neteja i preparació de xarops. Aquests elements esgovernaran a través d'un autòmat, on es carregaran els programes de neteja i preparació dexarops amb llenguatge de programació grafcet. Finalment, també es crea l'SCADA devisualització i control dels processos a través d'un panell tàctil

Agreed-upon procedures report on the City of Gilman, Iowa for the period September 1, 2013 through August 31, 2014

Agreed-upon procedures report on the City of Gilman, Iowa for the period September 1, 2013 through August 31, 2014

Agreed-upon procedures report on the City of Mount Ayr, Iowa for the period July 1, 2013 through June 30, 2014

Agreed-upon procedures report on the City of Mount Ayr, Iowa for the period July 1, 2013 through June 30, 2014

Investigation of Rapid Thermal Analysis Procedures for Prediction of the Service Life of PCCP Carbonate Coarse Aggregate, HR-337, 1993

The major objective of this research project was to use thermal analysis techniques in conjunction with x-ray analysis methods to identify and explain chemical reactions that promote aggregate related deterioration in portland cement concrete. Twenty-two different carbonate aggregate samples were subjected to a chemical testing scheme that included: • bulk chemistry (major, minor and selected trace elements) • bulk mineralogy (minor phases concentrated by acid extraction) • solid-solution in the major carbonate phases • crystallite size determinations for the major carbonate phases • a salt treatment study to evaluate the impact of deicer salts Test results from these different studies were then compared to information that had been obtained using thermogravimetric analysis techniques. Since many of the limestones and dolomites that were used in the study had extensive field service records it was possible to correlate many of the variables with service life. The results of this study have indicated that thermogravimetric analysis can play an important role in categorizing carbonate aggregates. In fact, with modern automated thermal analysis systems it should be possible to utilize such methods on a quality control basis. Strong correlations were found between several of the variables that were monitored in this study. In fact, several of the variables exhibited significant correlations to concrete service life. When the full data set was utilized (n = 18), the significant correlations to service life can be summarized as follows ( a = 5% level): • Correlation coefficient, r, = -0.73 for premature TG loss versus service life. • Correlation coefficient, r, = 0.74 for relative crystallite size versus service life. • Correlation coefficient, r, = 0.53 for ASTM C666 durability factor versus service life. • Correlation coefficient, r, = -0.52 for acid-insoluble residue versus service life. Separation of the carbonate aggregates into their mineralogical categories (i.e., calcites and dolomites) tended to increase the correlation coefficients for some specific variables (r sometimes approached 0.90); however, the reliability of such correlations was questionable because of the small number of samples that were present in this study.

Agreed-upon procedures report on the City of Lacona, Iowa for the period December 1, 2013 through November 30, 2014

Agreed-upon procedures report on the City of Lacona, Iowa for the period December 1, 2013 through November 30, 2014