Light measurement protocol for screens. Gert-Jan Swinkels Wageningen UR Greenhouse Horticulture. Background. No standard protocol available for measuring transmission horticultural screens Different screen manufacturers and research institutes use different methods Light box

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Ultraviolet Light Rays. By: Natalie Alexander and Elisa Desclous. Firstly… What is ultraviolet? Ultraviolet means “beyond violet.” Ultraviolet light rays (UV Rays) follow visible light on the spectrum, the last color of which is violet, so this name makes sense!. Characteristics

Light and X-rays. How do we take pictures of the inside of the body?. Can I take a picture of your bones with this red flashlight?. Can I take a picture of your bones with this green flashlight?. Can I take a picture of your bones with this X-ray camera?. X-ray. What is special about X-rays.

Light Rays and Mirrors Lab. Key Ideas. “Seeing” involves light rays coming from a source to our eyes. Our eyes have no capacity to reach out and capture a sighting. If light rays are coming directly from the source to our eyes, we see the source itself.

CMSC 471. First-Order Logic. Chapter 8.1-8.3. Adapted from slides by Tim Finin and Marie desJardins. Some material adopted from notes by Andreas Geyer-Schulz. Outline. First-order logic Properties, relations, functions, quantifiers, … Terms, sentences, axioms, theories, proofs, …

First Order Logic. CSE 573 Introduction to Artificial Intelligence Henry Kautz Fall 2005. Resolution. DPLL and Walksat do inference by searching through space of truth assignments Alternative approach to reasoning: derive new sentences from old sentences, by well-defined rules

First-Order Logic. Limitations of propositional logic. Suppose you want to say “All humans are mortal” In propositional logic, you would need ~6.7 billion statements Suppose you want to say “Some people can run a marathon” You would need a disjunction of ~6.7 billion statements.

First-Order Logic. Chapter 8. Outline. Why FOL? Syntax and semantics of FOL Using FOL Wumpus world in FOL Knowledge engineering in FOL. Propositional logic. Propositional logic is declarative Propositional logic allows partial/disjunctive/negated information

First-Order Logic. Chapter 8. Problem of Propositional Logic. Propositional logic has very limited expressive power E.g., cannot say "pits cause breezes in adjacent squares“ except by writing one sentence for each square. We want to be able to say this in one single sentence:

First-Order Logic. Chapter 8. Outline. Why FOL? Syntax and semantics of FOL Using FOL Wumpus world in FOL Knowledge engineering in FOL. Pros & Cons of Propositional logic. Propositional logic is declarative Propositional logic allows partial/disjunctive/negated information