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New Releases by Elizabeth StewartElizabeth Stewart is the author of Almost Unloved Vol 2 (2023), Almost Unloved Vol 1 (2023), Let Christ Transform Your Pain (2023), Anxiety (2023), The Toughest Half (2021).
release date: Oct 12, 2023
release date: Oct 12, 2023
Let Christ Transform Your Pain
release date: May 05, 2023
release date: Jan 01, 2023
release date: Jul 01, 2021
Lasting barely two centuries throughout the 1700s and 1800s, the Industrial Revolution in Britain propelled the country into the role of the world''s premier industrial nation. Known as the ''midwife of the Industrial Revolution'' coal was, literally, the driving force behind this power. Although referred to as ''the black diamond'', coal is not a thing of beauty, yet like the true diamond, it is representative of power and wealth. Coal mining usually evokes images of tough men, glistening with the sweat of underground toil. We talk about man-power and manual labour; the industry has become synonymous with men. Rarely, if ever, do women come to mind, yet, until an Act of 1942 banned them from working down the mines, women worked alongside men, their toil equally as gruelling in conditions jut as appalling. Forbidden by Victorian prudery from working underground, they were replaced, at much greater expense to the mine owners, by ponies. The efforts of these women, every bit as responsible as men for creating Britain''s once greatest industry, have rarely been acknowledged. During the 1926 general strike and lockout, Herbert Smith, President of the Miners'' Federation of Great Britain, reported that half the attendees at union meetings were women, "And these", he insisted, "are always the toughest half." This book tells of the history of coal and coal mining from mediaeval times to the demise of the industry in Britain in the 1990s, and describes women''s role in this history and how it affected their lives. Through a combination of historical narrative, fiction and biography, the book gives a voice to these diminished ''others'' - wives, mothers and daughters - whose persistence, courage, pride and sacrifice also contributed to the profits of wealthy mine owners. Their stories are told through the prism of historical events - the frightened little girl forced to work alone in subterranean darkness, the poverty-stricken young woman confronting an unwanted pregnancy, those enduring the loss of sons and partners to a deadly occupation and women who, through adversity, took the opportunity to publicly reveal their collective strength. Gentle and gruff, warm-hearted and implacable, these battlers against grime, beaters of carpets, painters, decorators and cooks, activists and staunch supporters of strikes and lockouts, underpinned the foundations of Britain''s coal industry. Woven through this book is the true story of the author''s mother, a miner''s daughter. Her life too was hard and closely entwined with coal mining to which she made, over many years, a considerable contribution not only to the industry but to the mining communities in which she worked.
release date: Jun 30, 2020
The Prang Textbooks of Art Education and the Emergence of a Transcendentalist Voice in Art Education Curricula
release date: Jan 01, 2017
release date: Nov 01, 2016
release date: May 20, 2016
Design of Polymeric Sensing Materials for Volatile Organic Compounds
release date: Jan 01, 2016
There are many applications in which sensing and monitoring volatile organic compounds (VOCs) and other gas analytes are important. This thesis focusses on finding suitable sensing materials for ethanol to reduce the instances of people driving while intoxicated. To find suitable sensing materials, many constraints must be taken into consideration. For example, a sensing material and sensor must have the appropriate sensitivity and selectivity required. The goal is to create a sensing material or multiple materials capable of detecting ethanol that is emitted from the skin (transdermally). This requires highly sensitive sensing materials and sensors capable of detecting ethanol close to 5 ppm. This limit of 5 ppm was confirmed by measuring transdermal ethanol. In addition, to avoid false positives, the sensor must be able to selectively identify ethanol (i.e. respond preferentially to ethanol). To achieve this goal, polymeric sensing materials were used because of their ability to be tailored towards a target analyte. Multiple polymeric sensing materials were designed, synthesized, and evaluated as a sensing material for ethanol. Both the sensitivity and selectivity of the sensing materials were evaluated using a specially designed experimental test set-up that included a highly sensitive gas chromatograph (GC) capable of detecting down to the ppb range. In total, over thirty potential sensing materials were evaluated for ethanol. These sensing materials, which include polyaniline (PANI) and two of its derivatives, poly (o-anisidine) (PoANI) and poly (2,5-dimethyl aniline) (P25DMA), doped with various concentrations of five different metal oxide nanoparticles (Al2O3, CuO, NiO, TiO2, and ZnO), were synthesized and evaluated for sensitivity and selectivity to ethanol. In addition, specialized siloxane-based polymers and other polymers such as poly (methyl methacrylate) (PMMA) and polypyrrole (PPy) were evaluated. From these thirty plus sensing materials, P25DMA doped with TiO2, NiO, and Al2O3, along with PPy, had the best sensitivity towards ethanol. Most of the materials tested, with the exception of the CuO doped P25DMA, P25DMA doped with 20% ZnO, poly (ethylene imine) (PEI), and the siloxane-based sensing materials, were able to sorb, and therefore detect, 5 ppm of ethanol. Therefore, the sensitivity requirement of 5 ppm was satisfied. In terms of selectivity, P25DMA doped with 5% Al2O3 and P25DMA doped with 10% TiO2 had the best selectivity towards ethanol with respect to five typical interferent gases (acetaldehyde, acetone, benzene, formaldehyde, and methanol). Some of the most promising polymeric sensing materials were then deposited onto two different kinds of sensors: a capacitive radio frequency identification (RFID) sensor and a mass-based microcantilever microelectromechanical systems (MEMS) sensor. These sensors were evaluated for sensitivity, selectivity, and response and recovery times. It was found that P25DMA doped with 20% NiO had a detection limit of 3 ppm on the RFID sensor, whereas P25DMA had a detection limit of 5 ppm on the MEMS sensor. It should be noted that not all sensing materials work well on all sensors. To improve the selectivity of a sensor, a sensor array or electronic nose can be used. These use a pattern-recognition algorithm to separate the responses for different gas analytes. A proof-of-principle study was done using principal component analysis that was capable of distinguishing between six different VOCs using five different polymeric sensing materials. In addition, a three sensor array was evaluated on the RFID platform. Using PCA as the filtering algorithm, four gas analytes (ethanol, methanol, acetone, and benzene) were able to be identified. These four analytes could also be identified even when in gas mixtures of twos and threes and when all four gas analytes were present. After this wide experimentation, and based on the knowledge gained from the sorption responses between various VOCs and polymers, along with what has been reported in the literature, various sensing mechanisms were proposed. These sensing mechanisms explain why certain VOCs sorb more preferentially onto certain polymers. Therefore, identifying the dominant sensing mechanisms for a target analyte can improve sensing material selection. Based on these sensing mechanisms, potential sensing materials can be chosen for a target analyte. By including other constraints from the specific application target and sensor, this list of potential sensing materials can be further narrowed. From here, these sensing materials can be evaluated for sensitivity and selectivity, before the most promising ones are deposited onto sensors for further testing. This has led to prescriptions that can be followed when designing a new sensing material for a target application. These prescriptions take into consideration the chemical nature of the target analyte (and thus, the dominant mechanisms by which it is likely to interact), any constraints of the target application (including operational temperature and type of sensor), and the chemical nature of the common interferents present with the target analyte. These prescriptions allow one to narrow down a list of hundreds or thousands of potential sensing materials to a manageable few, which can then be evaluated.
Texas Insurance Coverage Litigation- The Litigator's Practice Guide 2016
release date: Nov 20, 2015
release date: Jan 01, 2015
release date: Jun 26, 2014
release date: Jun 01, 2014
The Flawless Wedding Planner
release date: Mar 20, 2014
release date: Feb 18, 2014
Women in Senior Leadership at Nonprofit Theatres
release date: Jan 01, 2014
Hypoxia Inducible Factors in Cancer and Inflammation
release date: Jan 01, 2014
Occupational Therapy Evaluation for Adults
release date: Nov 18, 2013
An Investigation Into the Correlation Between Certain Properties of Osseous Samples and the Presence of Amplifiable Mitochondrial DNA
release date: Jan 01, 2013
The Lynching of Louie Sam
release date: Jul 03, 2012
Catastrophe and Survival: Walter Benjamin and Psychoanalysis
release date: Apr 19, 2012
Up Yon Wide and Lonely Glen
release date: Jan 01, 2012
E-Z American Sign Language
release date: Sep 01, 2011
"Punk Rock is My Religion"
release date: Jan 01, 2011
Modelling an Island Landscape in the North Atlantic Iron Age
release date: Jan 01, 2010
release date: Jan 01, 2009
release date: Jan 01, 2009
release date: Feb 01, 2008
Two Prize Essays on Educational Unification in the State of New York [by Sara E. Stewart and Richard E. Day]
release date: Jan 01, 2007
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