Effect of Wood Characteristics on Adhesive Bond Quality of Yellow-Poplar for Use in Cross-Laminated Timbers

Cross-laminated timber (CLT) panels are gaining more interest in North America, though CLTs are currently only approved for manufacture under ANSI/APA PRG-320 using select softwood species. Much of the low-grade Appalachian hardwood lumber produced has potential for being used to produce CLT panels given that necessary research data is developed to show that hardwood CLTs meet the requirements of the standard. One particular issue with using hardwood lumber in CLT panels is that it is often more difficult to achieve a strong, durable adhesive bond.;Among the Appalachian hardwood species, yellow-poplar (Liriodendron tulipifera) is particularly abundant in West Virginia. The objective of this research was to identify which characteristics of yellow-poplar lumber have an effect on adhesive bond quality. Twelve treatments were applied to yellow-poplar lumber to examine the interactions and main effects of adherend thickness, lamination orientation, and orthotropic orientation (bonding surface plane). Bond strength and durability were determined using shear-block and cyclic delamination tests. Fluorescence microscopy was used to determine the level of adhesive penetration achieved on select samples that performed notably well or poorly.;The results of the research found that lamination orientation significantly affected bond strength in yellow-poplar, with parallel laminated samples yielding higher average shear strength and wood failure than perpendicular laminated samples. Furthermore, adherend thickness also appears to influence bond strength, as the samples with thinner adherends had significantly higher levels of wood failure in shear block specimens. None of the tested effects had a clear impact on bond durability. Lastly, in comparing the results of the yellow-poplar samples to a reference species (hard pine) that is accepted for CLT manufacture, no differences were noticed in percentage of wood failure or delamination (bond durability). Yellow-poplar had a significantly higher mean shear strength than the reference samples, but this may tell more about the wood itself than the adhesive bond strength. Based on the findings of this research, yellow-poplar could facilitate adhesive bonds of the necessary strength and durability to be used in CLT manufacture

Exercise Prescription for Chronic Disease Management

The beneficial role of exercise in chronic disease management is well recognized, but the challenge of effective exercise prescription within primary care persists. Initiatives requesting clinicians to prescribe specific exercises to their patients has left two underlying questions: 1) Who is the most appropriate clinician to prescribe exercise to meet the unique needs of individuals living with more than one disease; 2) How does this clinician ensure appropriate and safe exercise prescriptions are provided? Three studies were completed to begin addressing the aforementioned questions. A nationally distributed survey compared exercise curricula between physiotherapy, nursing, and medical programs, while a systematic literature review showed overlapping physiological and subjective markers that clinicians may use to define safe exercises for individuals living with multiple chronic diseases. Finally a novel approach and a preliminary tool are presented to help guide how exercise prescription could be implemented in primary care. Findings suggest that PTs should lead the exercise prescription movement in primary care with nurses and physicians as exercise advisors or facilitators. Evidence from this thesis supports improving access to PT in primary care. Also, exercise prescription in individuals with multiple chronic diseases from a body-systems perspective is proposed, rather than solely relying on the dominantly available single-disease exercise guidelines. Finally, a newly developed exercise prescription approach is presented, which takes into account the advisors role in exercise prescription, while a preliminary tool is proposed that considers physiological and personal profiles of individuals who have more than one chronic disease, to guide clinicians in developing tailored exercise prescriptions in the primary care context

The Department Chair and Creative Leadership

Leading a department in the ever-changing and, at times, tumultuous landscape of higher education calls for creative problem-solving and divergent thinking. Participants will engage in specific creative leadership strategies using creativity as a reflective practice and as a means to lead boldly. The goals are to spur change while cultivating an inclusive department

Pattern Recognition in Temporal Data

V této diplomové práci je prvně provedena rešerše v oblasti popisu a analýzy časově proměnných dat. Práce následně uvádí problematiku technické analýzy burzovních grafů, cenových vzorů, indikátorů technické analýzy a metody Pure price action. Na praktickém příkladě dvou reálných obchodů je vysvětlena aplikace metody Pure price action v praxi za účelem vyhledávání a rozpoznávání cenových vzorů, analýzy a predikce dalšího možného vývoje ceny finančního instrumentu. Také je krátce vysvětlen samotný proces úspěšného obchodování. Následně je probráno téma Rozeznávání Vzorů a metoda Učení založené na instancích. V praktické části je pomocí programu MATLAB realizován algoritmus rozeznávání cenového vzoru Korekce pro nákup a prodej v dynamických časových řadách, konkrétně v cenových burzovních grafech, jakými jsou komoditní nebo akciové průběhy cen v závislosti na čase. Pro analýzu časových řad je použita metoda Pure price action. Metoda Učení založené na instancích řeší algoritmus vyhledávání cenových vzorů. Vytvořený algoritmus je ověřen na reálných datech 5-ti minutového úsečkového grafu USA indexu Dow Jones za rok 2006, 2007 a 2008. Dosažená úspěšnost a přesnost predikce je vyhodnocena pomocí Equity křivky.This diploma work initially conduct research in the area of descriptions and analysis of time series. The thesis then proceed to introduce the problems of technical analysis of price charts as well as indicators, price patterns and method of Pure Price Action. The method Pure Price Action is demonstrated in this work in two practical examples of its application to real businesses with a view to discovering and analyzing price patterns, as well as analysis and prediction of future price and financial evolution. This analysis is an introduction to the processes of successful business, following on from this we discuss the theme of Pattern Recognition and the Instance Based Learning method. The practical aspect of this work is carried out with the aid of a MATLAB applied algorithm for the analysis of the price pattern Correction for sale and purchase in dynamic time segments, specifically in trading price graphs, like those used for commodities or stock trading. For the analysis of time series we use the Pure Price Action method. The Instance Based Learning method is used by the algorithm to recognize price patterns. The created algorithm is verified on real data of a 5 minute time series of the US Dow Jones price charts for the years 2006, 2007, 2008. The achieved accuracy is evaluated with the aid of Equity Curves.

Cultivating Ingenuity in Art through STEAM Picture Books

In what creative ways can educators cultivate ingenuity? This article features ten STEAM picture books and their possibilities in the art room and beyond. It equips educators to take on STEAM armed with engaging and inspiring picture books that foster creativity, inventiveness, and more while inspiring students to create, experiment, problem-solve, and construct. There is a focus on one substantive, integrated Art and Science lesson built on the provocative book Summer Birds: The Butterflies of Maria Merian written by Margarita Engle and illustrated by Julie Paschkis. Readers will leave with one complete STEAM challenge-based lesson plan informed by this book and nine transdisciplinary student-centered seed strategies based on nine other ingenious STEAM picture books. Each STEAM lesson has a contemporary artist connection and focuses on the Studio Habits of Mind

The Importance of Dangerous Goods Transport by Rail

Continuously growing needs of society brings with it the development of industry, new technologies and use of new types of hazardous substances. Each transport of hazardous substance entails some risk of incident. This article deals with problems of transporting of dangerous goods by rail. The paper describes the Directive, which forms the basis of the transport of dangerous goods. In the next chapter, article describes of procedure for international rail transport of dangerous goods (RID) and the system of risk identification for railway transport. The conclusion of the article describes the advantages and disadvantages of transporting of dangerous goods by rail

Human Factor in Conversation Between Subordinates and Managers

Communication between a pilot and air traffic controller (ATC) is one of the most important factors in the aviation safety. Communication is the exchange of information based on mutual reliance, information precision and accuracy of on both communicating parties

FEM modeling of magnetic microwire and its using for stress monitoring inside the composite beam

The proposed article is devoted to the stress evaluation inside the composite beam using the embedded magnetic microwire sensors. The interlaminar stresses with high values can occur inside the composite structures during the operation. It is essential to monitor the stresses and to increase the lifetime of the composite materials by prediction using the research results from the stress distribution estimation and also during the operation using the embedded magnetic microwire-based sensors. In the article the results of the mechanical stress distribution between the magnetic microwire coating and core and the discussion about the experimental application of the magnetic microwire inside the composite beam are presented

The Use of CAX Systems as a Tool for Modeling Construction Element in the Aviation Industry

The article deals with the adjustment of the wing selected part of the plane Viper SD-4 from slovak producer with using environment of software Siemens NX9. The adjustment is carried out after consultation with the test pilots of this plane and tries to take into account the observations made during the test flights. The first part of the article is focused on the current construction of the wings and its parts. The second part describes how digitalize the real wing by using reverse engineering. The last section describes adjustment of the design and its 3D model in a virtual environment. The model is created in the environment Modeling and Aero Sheet Metal in software Siemens NX. When modelling was also used part of the drawing documentation from the manufacturer. This article deals with the wing treatment on the theoretical base