# Hend Dawood

## Senior Assistant Lecturer of Computational Mathematics

Department of Mathematics, Faculty of Science, Cairo University, Giza, PO Box: 12613, Egypt. (email)

Department of Mathematics, Faculty of Science, Cairo University, Giza, PO Box: 12613, Egypt. (email)

Utilising of linear and non-linear prediction tools for evaluation of penetration rate of Tunnel Boring Machine in hard rock condition
Predicting Tunnel Boring Machine (TBM) penetration rate is a crucial issue for the successful fulfilment of a mechanical tunnel project. Penetration rate depends on many factors such as intact rock properties, rock mass conditions and machine...

Coiled Tube Turbodrilling: a proposed technology to optimise drilling deep hard rocks for mineral exploration
The need to drill deep boreholes more efficiently for mineral exploration has raised the attention to investigate the feasibility of recent drilling technologies for such applications. The two principal methods of Reverse Circulation (RC) and...

Numerical analyses of the hangingwall failure due to sublevel caving: study case
The sublevel caving used in Kiirunavaara mine induces failure and subsidence of the hangingwall. Two sections of the mine were studied by means of numerical analyses. Numerical models were developed using finite element and discrete element codes....

Int. J. of Environment and Waste Management to publish expanded papers from ICEOH 2014
Expanded versions of papers presented at the International Conference of Environmental and Occupational Health (7-9 April 2014, Putra Jaya, Malaysia) will be published by the International Journal of Environment and Waste Management.

Special issue published: "Learning Analytics"
International Journal of Technology Enhanced Learning 5(2) 2013Like diamonds in the sky: how feedback can boost the amount of available data for learning analyticsImproving academic outcomes: does participating in online discussion forums payoff?...

International Journal of Wireless and Mobile Computing increases issues
The International Journal of Wireless and Mobile Computing has announced that it will be increasing issues from six to eight from 2015 onwards.

Special Issue on: "Engine Combustion Optimisation and Control"
Engine combustion optimisation and control plays an important role in vehicle fuel economy and emissions. Substantial progress has been made in understanding the combustion process, combustion modelling for real-time simulations and model-based...

Special Issue on: "Advances in Data Mining and Its Applications"
Although data mining is a relatively new term, the technology is not. Data mining is primarily used today by companies with powerful computers to sift through volumes of supermarket scanner data and analyse market research reports.
It allows these...

Special Issue on: "Emergent Integrative Research Strategies within Tourism Studies"
The complex effects of tourism and touristic travel often require integrative, comprehensive methods to answer research questions that seek to more fully understand the tourist phenomenon. The dynamic nature of tourism systems, the surprising ways...

Computers and Math News from the ScienceDaily Magazine

In search of . . . time travelers
Scientists couldn't find any visitors from another century, but they had a very interesting time trying. They selected search terms relating to two recent phenomena, Pope Francis and Comet ISON, and began looking for references to them before they...

New social network study investigates how people use Facebook to maintain friendships
New social networking research investigates how individuals use Facebook to maintain their friendships.

Supercomputers join search for 'cheapium': Brute force computing used to find new materials
Researchers use brute force supercomputing to identify dozens of platinum-group alloys that were previously unknown to science but could prove beneficial in a wide range of applications.

Featured Math Articles from Plus Magazine

Plus Advent Calendar Door #24: Santa's knapsack problem
Santa's just putting his hat on and button up his jolly red coat when an exasperated elf runs up to him: "Santa! We've got a problem! There have been so many good children this year we can't put all the presents into your sleigh!"
read more

Plus Advent Calendar Door #23: Beautiful ellipses
When Kepler was decorating his Christmas tree you can be sure his Christmas baubles weren't boring and round. Oh no, we're sure they would have been beautiful and elliptical!
read more

Plus Advent Calendar Door #22: Travelling Santa
It's that time of the year again when Santa needs to think about how to deliver all those presents to the people on Earth. Unfortunately his reindeers are a bit weak this year, having suffered some severe bouts of flu, and he knows he can't ask them...

New Releases from the American Mathematical Society

Hyperbolic Partial Differential Equations and Geometric Optics
Jeffrey Rauch, University of Michigan - AMS, 2012, approx. 373 pp., Hardcover, ISBN-13: 978-0-8218-7291-8, List: US$64, All AMS Members: US$51.20, GSM/133 This book introduces graduate students and researchers in mathematics and the sciences to the...

Mathematical Methods in Immunology
Jerome K. Percus, Courant Institute of Mathematics, and Department of Physics, New York University - AMS | CIMS, 2011, 111 pp., Softcover, ISBN-13: 978-0-8218-7556-8, List: US$32, All AMS Members: US$25.60, CLN/23 Any organism, to survive, must use...

Invitation to Classical Analysis
Peter Duren, University of Michigan - AMS, 2012, approx. 388 pp., Hardcover, ISBN-13: 978-0-8218-6932-1, List: US$74, All AMS Members: US$59.20, AMSTEXT/17 This book gives a rigorous treatment of selected topics in classical analysis, with many...

Feature Column from the American Mathematical Society

Stereographic Projection
In effect, stereographic projection wraps the plane around the sphere, missing only that one point...

Periods
After a brief introduction to the combinatorics on words, which builds on some of the same ground that was discussed in a prior note, I will look at a remarkable theorem due to the mathematicians Herbert Wilf and Nathan Jacob Fine...

The Polish Attack on Enigma II: Zygalski sheets
I'll say a little bit about how the mathematics was applied to reading German messages, up until a drastic change in procedure by the Germans, and I'll say more about how the Poles recovered after this change...

Contemporary Mathematics New Releases from the American Mathematical Society

Tropical and Non-Archimedean Geometry
Omid Amini, Matthew Baker and Xander Faber, editors.
American Mathematical Society | Centre de Recherches
Mathematiques, 2013, CONM, volume 605, approx. 272 pp. ISBN:
978-1-4704-1021-6 (print),...

Recent Advances in Real Complexity and
Computation
José Luis Montaña and Luis M. Pardo, editors.
American Mathematical Society, 2013, CONM, volume 604,
approx. 200 pp. ISBN: 978-0-8218-9150-6 (print),
978-1-4704-1409-2 (online). This volume is...

Women in Numbers 2: Research Directions in Number
Theory
Chantal David, Matilde Lalín and Michelle Manes,
editors. American Mathematical Society | Centre de
Recherches Mathematiques, 2013, CONM, volume 606, approx.
216 pp. ISBN: 978-1-4704-1022-3 (print...

News from the American Mathematical Society

Paul Sally, 1933-2013
Paul J. Sally, Jr., a University of Chicago mathematician best known for his tireless commitment to improving mathematics education, died on December 30, at the age of 80. Tall, bald, and wearing a black eye patch (he lost an eye to diabetes), Sally...

2013 Trjitzinsky Awards
Eight students from seven AMS institutional members have received a total of $21,000 to help them complete their undergraduate degrees in mathematics. Read more about this year's awards.

Highlights of the 2013 Joint Mathematics Meetings
Read summaries and see photo slideshows of selected highlights of the 2013 Joint Mathematics Meetings held in San Diego last month---invited addresses, prizes, exhibits, Employment Center, Grad School Fair, Mathematical Art Exhibition, national Who...