Probabilistic models to assist maintenance of multiple instruments

The paper discusses maintenance challenges of organisations with a huge number of devices and proposes the use of probabilistic models to assist monitoring and maintenance planning. The proposal assumes connectivity of instruments to report relevant features for monitoring. Also, the existence of enough historical registers with diagnosed breakdowns is required to make probabilistic models reliable and useful for predictive maintenance strategies based on them. Regular Markov models based on estimated failure and repair rates are proposed to calculate the availability of the instruments and Dynamic Bayesian Networks are proposed to model cause-effect relationships to trigger predictive maintenance services based on the influence between observed features and previously documented diagnostics

Part 1 - talk on using Creative Commons and opensource software to make Open Content (what is creative commons ?, what is open content ?)

This is the first part of a 2 part video from my talk in May 2008 on open source content creation.

Part 2 - talk on using Creative Commons and opensource software to make Open Content. (Making of Doljer)

This is the second part of a 2 part video from my talk in May 2008 on open source content creation. Here I am talking about the Making of Doljer

How to Make a Panopto Recording Offline

This 7-minute video shows you how to make a recording using Panopto in locations where you have no internet access, such as another institution or on a field trip. It also shows you how to upload the recording when you get back to your office.

How to make an inter library loan request

The guide takes you through the various steps required to request a book, journal article, conference paper, thesis or other documents that the library does not hold in stock.

How to make a Table of Contents to cover only part of the file in MS Word 2010

A Table of Contents can be tweaked so that it picks up the content from only part of a file (such as an Appendix). This video shows you how to make such a change to a Table of Contents that is based upon Heading Styles. For best viewing Download the video.

Using the Table of Authorities functionality to make a Glossary in Word 2010

Word does not contain a Glossary creation tool, you may find it easiest to just create a the list yourself manually. If you want to use Word then the only tool that can be co-opted to help is the Table of Authorities and this document sets out step by step instructions on how to do this.

Using the Table of Authorities functionality to make a Glossary in Word 2011

Word does not contain a Glossary creation tool, you may find it easiest to just create a the list yourself manually. If you want to use Word then the only tool that can be co-opted to help is the Table of Authorities and this document sets out step by step instructions on how to do this in Word 2011.

How to make a banana treat.

Hacer una tarta de plátano forma parte del capítulo de competencias. Con un texto sencillo y palabras que se repiten se da a los niños instrucciones de cómo hacer un postre muy simple. Las fotografías se usan para hacer los libros reales para las propias experiencias de los niños. Para los jóvenes lectores con edades comprendidas entre los cuatro y cinco años. Las palabras se introducen en el contexto real a través de diferentes tipos de texto.

The Usborne big book of christmas things to make and do.

Tiene varios tipos de actividades para realizar por los niños durante las fiestas navideñas. Todas ellas relacionadas con la realización de tarjetas de felicitación, adornos y decoraciones, y también para preparar dulces recetas de cocina.

How to make a paper hat.

Hacer un sombrero de papel forma parte del capítulo de competencias. Con un texto sencillo y palabras que se repiten se da a los niños instrucciones de cómo hacer un sombrero muy sencillo. Las fotografías se usan para hacer los libros reales para las propias experiencias de los niños. Para los jóvenes lectores con edades comprendidas entre los cuatro y cinco años. Las palabras se introducen en el contexto real a través de diferentes tipos de texto.

Conflicts. 15 masterpieces of struggle and conflict : with exercises to make you think.

Contiene quince historias de alta calidad literaria con distintos niveles de lectura. Los ejercicios han sido especialmente diseñados para animar a: pensar, contar acerca de la historia, manejar las nuevas palabras de vocabulario, identificar los elementos narrativos, saber leer críticamente.

Influence of time on the plant availability of Cd, Ni and Zn after sewage sludge has been applied to soils

A pot experiment was conducted to test the hypothesis that decomposition of organic matter in sewage sludge and the consequent formation of dissolved organic compounds (DOC) would lead to an increase in the bioavailability of the heavy metals. Two Brown Earth soils, one with clayey loam texture (CL) and the other a loamy sand (LS) were mixed with sewage sludge at rates equivalent to 0, 10 and 50 1 dry sludge ha(-1) and the pots were sown with ryegrass (Lolium perenne L.). The organic matter content and heavy metal availability assessed with soil extractions with 0.05 M CaCl2 were monitored over a residual time of two years, while plant uptake over one year, after addition of the sludge. It was found that the concentrations of Cd and Ni in both the ryegrass and the soil extracts increased slightly but significantly during the first year. In most cases, this increase was most evident especially at the higher sludge application rate (50 t ha(-1)). However, in the second year metal availability reached a plateau. Zinc concentrations in the ryegrass did not show an increase but the CaCl2 extracts increased during the first year. In contrast, organic matter content decreased rapidly in the first months of the first year and much more slowly in the second (total decrease of 16%). The concentrations of DOC increased significantly in the more organic rich CL soil in the course of two years. The pattern followed by the decomposition of organic matter with time and the production of DOC may provide at least a partial explanation for trend towards increased metal availability.

Effects of short-term pH fluctuations on cadmium, nickel, lead, and zinc availability to ryegrass in a sewage sludge-amended field

In this field experiment, sewage sludge was applied at 0, 5, 10, and 50 t ha(-1), and the availability of Cd, Ni, Pb, and Zn was assessed both by ryegrass uptake and by DTPA extractions. The aim was to investigate the role of important soil parameters, particularly pH, on heavy metal availability. It was found that metal uptake and extractability increased significantly in the 50 t ha(-1) treatment. In the 16th week of the experiment there was a significant, although temporary, increase in DTPA-extractable Cd, Ni, and Zn concentrations. Metal concentrations in ryegrass were also significantly elevated in week 20 compared to the subsequent cuttings. These fluctuations in both DTPA and ryegrass uptake occurred only at 50 t ha(-1) and were probably induced by a sudden pH decrease measured in the same treatment in week 16. This suggests that soils which have received high applications of sewage sludge may be prone to fluctuations in metal availability. (c) 2007 Elsevier Ltd. All rights reserved.