CC Technologies

Dublin, OH, United States

CC Technologies

Dublin, OH, United States
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Bongers F.,CC Technologies | Marcroft J.,Marcroft Timber Consultancy | Perez F.,Simpson Strongtie | Alexander J.,United Technologies | And 2 more authors.
WCTE 2014 - World Conference on Timber Engineering, Proceedings | Year: 2014

The benefits from acetylation of wood to enhance resistance against fungal decay and dimensional stability have been known for many years. Since 2007 Accsys Technologies has been commercial producing Accoya® wood that is based on acetylation of Radiata pine and more recently Alder and SYP for particular uses. Accoya® has shown its potential for many applications, including structural uses. Encouraged by the success of the two heavy load-bearing traffic bridges constructed using Accoya® wood in Sneek the Netherlands [1-2], several pedestrian bridges and various other column type structures situated in wet (Service Class 3) conditions have been completed. In 2012 a Design Guide for Accoya® structural wood was published that demonstrates Accoya® structural Radiata pine achieves the properties of C24 as given in EN 338. The research behind this manual is shown in [3]. It should be noted that Accoya Structural is based on machine stress grading and is distinct from the regular Accoya® wood used for non-load-bearing applications. In the last couple of years additional research has been undertaken primarily at University of Karlsruhe, MPA Stuttgart and Simpson Strong Tie's European test laboratory. A portion of these results is presented in [4-7]. This paper presents test results which investigate the performance of Accoya® in both dry (service class 1: SC1) and wet (service class 3:SC3) conditions. This data will be used to augment the Structural Design Guide to Eurocode 5. Testing to-date, in qualifying the material at a number of universities and institutes, has been in support of specific design projects and, as is normal for solid timber, has focused on establishing characteristic material data in Service Class 1 (SC1) conditions. Accoya is predominantly specified in Service Class 3 (SC3) situations and new work has been undertaken to evaluate Accoya wood in matched service class 1 and 3 conditions so that we might establish if Eurocode xskmod factors for solid timber are appropriate for Accoya. The associated evaluations involve new tests in bending, tension, hanger and nail withdrawal. Results indicate solid wood kmod factors often underestimate Accoya structural performance in Service Class 3 application and more appropriate kmod factors are needed.

Marcroft J.,Marcroft Timber Consultancy Ltd | Bongers F.,CC Technologies | Perez F.P.,Simpson Strong Tie | Alexander J.,United Technologies | Harrison I.,Simpson Strong Tie
RILEM Bookseries | Year: 2014

The acetylation of wood gives enhanced resistance against fungal decay and improved dimensional stability, benefits which make Accoya® wood particularly suitable for use in external applications. With increasing interest in using acetylated wood in structural applications, Accsys Technologies are continually undertaking studies which add to the database of structural properties of Accoya® wood. This paper describes one such study investigating the structural performance of Accoya® wood under service class 3 conditions and in particular the relative structural performance of Accoya® wood between service classes 1 and 3 and how Accoya compares with solid timber in this regard © RILEM 2014.

Bongers F.,CC Technologies | Alexander J.,United Technologies | Marcroft J.,TimberSolve | Crawford D.,Napier University | Hairstans R.,Napier University
International Wood Products Journal | Year: 2013

The benefits from acetylation of wood to enhance resistance against fungal decay and dimensional stability have been known for many years. Since 2007 Accsys Technologies has been commercially producing Accoya wood that is based on acetylation of Radiata pine. Accoya has shown its potential for many applications, even for structural use. However, due to limited engineering data each project had to be evaluated on a case-by-case basis. Based on research at various universities and institutes, Accsys Technologies has in combination with TimberSolve and ARUP, developed a handbook to assist designers and structural engineers produce reliable, durable and consistent designs utilising Accoya wood in structural applications. © 2013 IWSc, the Wood Technology Society of the Institute of Materials, Minerals and Mining.

Marshall L.,University of Pretoria | Pieterse V.,University of Pretoria | Thompson L.,University of Pretoria | Venter D.M.,CC Technologies
ACM Transactions on Computinig Education | Year: 2016

Employers require software engineers to work in teams when developing software systems. It is therefore important for graduates to have experienced teamwork before they enter the job market. We describe an experiential learning exercise that we designed to teach the software engineering process in conjunction with teamwork skills. The underlying teaching strategy applied in the exercise maximises risks in order to provide maximal experiential learning opportunities. The students are expected to work in fairly large, yet short-lived, instructor-assigned teams to complete software engineering tasks. After undergoing the exercise our students form self-selected teams for their capstone projects. In this article, we determine and report on the influence the teaching exercise had on the formation of teams for the capstone project. By analysing data provided by the students through regular peer reviews we gain insight into the team dynamics as well as to what extent the members contributed to the team effort. We develop and present a graphical model of a capstone project team which highlights participation of individuals during the teaching exercise. The participatory history of the members is visualised using segmented concentric rings. We consider how this visualisation can aid the identification of capstone project teams that are at risk. In our experience the composition of the team and the behaviour of other members in the team may have a marked impact on the behaviour of each individual in the team. We established a team classification in order to model information about teams. We use a statistical clustering method to classify teams. For this we use team profiles that are based on the participatory levels of its members. The team types that emerge from the clustering are used to derive migration models. When we consider migration, we build spring models to visualise the teams through which individuals migrate. We colour code the teams to characterise them according to the team types that were identified during the cluster classification of the teams. Owing to the complexity of the resulting model, only migrations for capstone team members who have worked together during the exercise or for solitary capstone team members are modelled. These models support the identification of areas of interest that warrant further investigation. To conclude, we present our observations from the analysis of team compositions, team types, and team migrations and provide directions for future work and collaborations. © 2016 ACM.

Bongers F.,CC Technologies | Meijerink T.,CC Technologies | Lutkemeier B.,University of Gottingen | Lankveld C.,CC Technologies | And 3 more authors.
International Wood Products Journal | Year: 2016

Through the modification of wood, various properties can be altered by chemical, physical or mechanical processes that influence the bonding quality and workability of gluing systems. This is evident for adhesion, pressing time, curing and glue line properties. Further, testing methods need to be evaluated on their applicability for determining the bonding quality of modified woods. In this paper, laboratory test results of non-load-bearing-laminated acetylated products are presented. The results are evaluated and discussed in respect to chemical composition, ultra-structure and other properties altered by the acetylation process. © Accsys Technologies 2016.

Gibbons D.,CC Technologies
Test Engineering and Management | Year: 2014

David Gibbons, equipment support technician, Keysight Technologies, discusses why periodic maintenance (PM) should be performed on environmental chambers. The biggest reason is downtime. A good PM checks the health of each of the parts of a chamber. In addition, the maintainer needs to actually operate the chamber, checking to see that it cools, humidifies, and dehumidifies well. The user can also help the maintainer know of any oddities to the behavior of the chamber that have been noted, as this can help overcome the trouble parts. The maintainer should also check the quality of control. The maintainer should also just listen to the machine, as unusual noises are a sign of problems.

Saiman M.Z.,Leiden University | Saiman M.Z.,University of Malaya | Mustafa N.R.,Leiden University | Mustafa N.R.,CC Technologies | And 3 more authors.
Plant Cell, Tissue and Organ Culture | Year: 2012

Gynura procumbens is a medicinal plant used in South East Asia to treat various ailments such as rash, hemorrhoids, inflammation, and diabetes. In order to develop a large-scale culture system for G. procumbens biomass containing bioactive compounds, adventitious root cultures were initiated from leaf explants. Murashige and Skoog (MS) media containing different compositions of indole-3-butyric acid (IBA), 1-naphthalene-acetic acid (NAA), and combinations of both plant growth regulators (PGRs) were evaluated for root induction. A combination of 3 mg/l NAA + 1 mg/l IBA gave the highest root induction (48%) as compared to other PGRs treatments after 9 weeks of incubation period. Subsequently, the adventitious roots were established in liquid culture containing MS medium and the combination of 3 mg/l NAA + 1 mg/l IBA. A study on the medium strength, sucrose concentration, pH, and light versus dark was conducted to optimize the in vitro culture conditions. The results showed that differences in MS medium strength from half to double strength, and light or dark condition did not significantly affect the biomass production, while the initial medium pH of 5.5 and 2% w/v sucrose concentration were most suitable for the root culture growth. Nuclear magnetic resonance (NMR) spectroscopy was performed to characterize the metabolite content in the root cultures of G. procumbens. Among the elucidated metabolites were some phenylpropanoids identified as caffeic acid, chlorogenic acid, and 3,5-di-O-caffeoylquinic acid which might be the bioactive compounds associated to the folk use of this plant. © 2012 The Author(s).

CC Technologies | Date: 2013-09-18

Electric heaters for commercial use; Hot water heaters; Hot water tanks; Hot-water space heating apparatus; Hybrid water heater; Portable electric heaters; Water conservation plumbing fixtures, namely, point of use low flow water heating unit; Water heaters; Water heaters for domestic, industrial and commercial use; Water purifying units, for potable water for domestic, industrial and commercial use.

CC Technologies | Date: 2013-02-08

A portable device for communicating text messages over a wireless communication link. Short range communications are enabled over open frequencies between at least two devices. The devices are pre-coded to only exchange messages with previously identified devices.

CC Technologies | Date: 2013-02-15

A gas fired catalytic heater is provided that foregoes the need for an electrical heating element to provide the activation energy for the hydrocarbon catalyst pad. An alcohol self-igniting catalyst pad is used to provide the activation energy to the hydrocarbon catalyst pad thereby removing dependence of the heater on an outside electrical energy source to initiate start-up of the heater. The catalyst pad includes a flexible wash coat; a noble metal dispersed on the wash coat; an anti-sintering element saturating the wash coat; and a catalyst promoter saturating the wash coat.

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