63 research outputs found
The Effects of Increasing Solids Concentration in Air Knife Coatings for Boxboard
The purpose of this thesis was to determine whether high solids concentrations may be applied to air knife coatings for boxboard. Considerations were the effects of high solids on coat weight controllability and final sheet properties.
The study was conducted on a pilot air knife coater using coatings at 56-62% solids and containing .2 to .6 parts per hundred CMC as water retention aid. Finished sheet properties evaluated included brightness, gloss, smoothness, IGT pick strength, K & N ink absorption and glueability.
It was determined that solids levels up to 58% could be efficiently run providing machine speed did not exceed 500 fpm. While high solids showed no significant effect on brightness, gloss or smoothness; pick strength, ink absorption and glueability all decreased
Complex systems and the technology of variability analysis
Characteristic patterns of variation over time, namely rhythms, represent a defining feature of complex systems, one that is synonymous with life. Despite the intrinsic dynamic, interdependent and nonlinear relationships of their parts, complex biological systems exhibit robust systemic stability. Applied to critical care, it is the systemic properties of the host response to a physiological insult that manifest as health or illness and determine outcome in our patients. Variability analysis provides a novel technology with which to evaluate the overall properties of a complex system. This review highlights the means by which we scientifically measure variation, including analyses of overall variation (time domain analysis, frequency distribution, spectral power), frequency contribution (spectral analysis), scale invariant (fractal) behaviour (detrended fluctuation and power law analysis) and regularity (approximate and multiscale entropy). Each technique is presented with a definition, interpretation, clinical application, advantages, limitations and summary of its calculation. The ubiquitous association between altered variability and illness is highlighted, followed by an analysis of how variability analysis may significantly improve prognostication of severity of illness and guide therapeutic intervention in critically ill patients
Gamma-irradiated human skin allograft: a potential treatment modality for lower extremity ulcers
Rosales MA, Bruntz M, Armstrong DG. Gamma-irradiated human skin allograft: a potential treatment modality for lower extremity ulcers. Int Wound J 2004;1:201-206. ABSTRACT Gamma-irradiated human skin allograft consists of epidermis and dermis. Unlike bioengineered tissues which require cold storage and timely use once received from the manufacturer, gamma-irradiated human skin allograft can be stored for as long as 24 months at room temperature. This modality is applied in a fashion similar to that of bioengineered skin grafts. In this article, we present case studies with concise reviews of the available evidence to discuss the potential use of gamma-irradiated human skin allograft on wounds in the lower extremity
A Principal Component Regression Approach for Estimating Ventricular Repolarization Duration Variability
Ventricular repolarization duration (VRD) is affected by heart rate and autonomic control, and thus VRD varies in time in a similar way as heart rate. VRD variability is commonly assessed by determining the time differences between successive R- and T-waves, that is, RT intervals. Traditional methods for RT interval detection necessitate the detection of either T-wave apexes or offsets. In this paper, we propose a principal-component-regression- (PCR-) based method for estimating RT variability. The main benefit of the method is that it does not necessitate T-wave detection. The proposed method is compared with traditional RT interval measures, and as a result, it is observed to estimate RT variability accurately and to be less sensitive to noise than the traditional methods. As a specific application, the method is applied to exercise electrocardiogram (ECG) recordings
Supplementing Milk Income with Dairy Steers
A.E. Ext. 80-4A.S. Mimeo 48The 1979 Southeastern New York dairy farm business summary includes 20 farms from Sullivan County, 14 from Orange County and 4 Ulster County dairy farms for a total of 38 farms. The Cooperative Extension Association of Middletown, sponsor this farm business management project and cooperate with the College of Agriculture and Life Sciences at Cornell, where the records are summarized. The primary purpose of this project is to assist cooperations in farm record keeping and business analysis and thereby improve their skills as managers. This report is prepared in workbook form for use in the systematic study of individual farm business operations. The data in the following table gives a view of teh characteristics of farms participating in the Southeastern New York farm management progra
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