Equations

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Many non-native English speaking students reach university with poor writing skills. They are unable to produce correct/meaningful sentences and ultimately struggle to write well-structured paragraphs/essays. Teaching students how to identify, combine, and proofread their sentences using simple Math to justify their sentence structures can help develop their writing skill. Summary-Many ESL/EFL students in elementary, middle, secondary classes and even at university have trouble writing correct sentences in English. Consequently, their paragraph writing is poor and their essays might not look like English essays. The problem starts mainly in KG and cycle one classes where students should have learned at least that the sentence is made of " someone doing something " in KG or " a naming part and a telling part " in cycle one. When students are not able to write simple, compound, and complex sentences, teachers should not expect from their students coherent paragraphs or well structured essays. Using simple Math to write correct English sentences is a strategy used by the trainer as an attempt to simplify the sentence structure to non-native English speaking learners. If students do not use this strategy when writing their sentences, they at least can edit them using simple Math strategy.

This chapter is the first of two which set out the fundamental fluid dynamics required for the further development of aerodynamics. In this chapter the study of air in motion starts with the physics and mathematics of one-dimensional fluid motion. Many of the physical phenomena evident in all stages of aerodynamics are most readily approached by considering the one-dimensional manifestation of the phenomena. The physical laws governing the changes in the physical properties of air are first covered and the relevant mathematics introduced. These physical laws are applied to the accelerating gas as it moves out of the low-speed (incompressible) regime and into the transonic and supersonic regimes where the abrupt changes in properties are manifest. Chapter 3 describes the methodology to solve potential flow problems required for the analysis of low-speed airfoils and wings in Chapters 4 and 5 Chapter 4 Chapter 5 .

Axalto Smart Cards, 36-38 rue de la Princesse BP 45, 78430 Louveciennes Cedex, France http://www.nicolascourtois.net courtois@minrank.org Abstract. In this paper we give a specification of a new block cipher that can be called the Courtois Toy Cipher (CTC). It is quite simple, ...

Abstract. Many popular stream ciphers apply a filter/combiner to the state of one or several LFSRs. Algebraic attacks on such ciphers [10,11] are possible, if there is a multivariate relation involving the key/state bits and the output bits. Recent papers by Courtois, Meier, Krause ...

While scientific models are usually communicated in paper format, the need to reprogram every model by every user results in a huge loss of efforts, time and money, hence lengthening the educational and research developing cycle and loosing the learning experience and expertise gained by every user. We demonstrate a new portal www.imodelit.com that hosts a library of scientific models for electrical engineers in the form of java applets. They are all conformal, informative, with strong input and output filing system. The software design allows a fast developing cycle and it represents a strong infrastructure that can be shared by researchers to develop their own applets to be posted on the library. We aim for a community based library of scientific models that enhances the e-learning process for engineering students. 1