Substitutivity of Equivalence Let A,M and N be wffs and let AMN be the result of replacing M by N at zero or more occurrences (henceforth called designate occurrences) of M in A. 1. AMN is a wff. 2. If |= M ≡ N then |= A ≡ AMN

Linking Vowel to Vowel If our lips are round at the end of the first word, we insert a / / sound: We write it like this: too often who is so I do all We say it like this: toowoften whowis sowI dowall

Why use phonemic symbols? The alphabet which we use to write English has 26 letters but (British) English has 44 sounds. Inevitably, English spelling is not a reliable guide to pronunciation because Some letters have more than one sound Sometimes letters are not pronounced at all The same sound may be represented by different letters

Deployment and Geometry Maintenance Deployment and Geometry Maintenance  Deployable Membranes Used for solar arrays, sunshields, decoys Being researched for apertures starting at RF and eventually going to optical

Ionization and Conduction in a High-pressure Plasma A normal gas at T <3000K is a good electrical insulator, because there are almost no ∼ free electrons in it. For pressure

Suppose we want to move a satellite in a circular orbit to a position ∆ϑ apart in the same orbit, in a time ∆t (assumed to be several orbital times at least). The general approach is to transfer to a lower (for positive ∆ϑ ) or higher (for ∆ϑ < 0 ) nearby

The safe and reliable long-term disposal of solid waste residues is an important component of integrated waste management. Solid waste residues are waste components that are not recycled, that remain after processing at a materials recovery facility, or that remain after the recovery of conversion products and/or energy. Historically, solid waste has been placed in the soil in the earth's surface or deposited in the oceans. Although ocean dumping of municipal solid waste was officially abandoned in the United States in 1933, it is now argued that many of the wastes now placed in landfills or on land could be used

Chapter 2 Basic Analytical Tools 1. General Equilibrium Analysis一般均衡法 1) GEA means analyzing two or more than two related markets at the same time(eg. Export Market and Import Market, Goods Market and Factor Market) 2) We usually use the PPF and CICas the basic tools in the general equilibrium analysis of international trade

Few events obtain the same instant national and even worldwide news coverage as when several people are shot and killed in a public place. The worst examples in the United States come readily to mind Colin Ferguson killed 6 people during his rampage on the Long Island(NY) Railroad in December 1993: 22 people were killed during the October 1991 shooting in Luby's Cafeteria in Killeen, Texas; 5 persons died at the Cleveland Elementary School

SUMMER: NETEM: CB2 Section i Listening comprehension Directions: This section is designed to test your ability to understand spoken English. You will hear a selection of recorded materials and you must answer the questions that accompany them. There are three parts in this section, Part A, Part B and Part C. Remember, while you are doing the test, you should first put down your answers in your test booklet. At the end of the listening comprehension section, you will have 5 minutes to transfer all your answers from your