Chemistry Revision F331 Isotopes - atoms with the same atomic number‚ but different mass numbers 131I - radioactive tracer for thyroid. 99Tc for tumours. Radioisotopes - gamma emitters & short half life - long enough to detect‚ but not long enough for damage. Beta particles emitters are more useful than alpha particle emitters because they penetrate more and so are more easily detected. Also‚ less damaging. The half life is the time taken for half the isotope to decay Mass left = initial
Premium Atom Oxygen Periodic table
Experiment 3: Solution Calorimetry: Thermodynamics of Potassium Nitrate II. Abstract A determination of thermodynamic variables of KNO3 is presented. KNO3 was heated and dissolved in varying volumes of distilled water. Upon dissolution‚ the KNO3 solution was removed from heat and the temperature was recorded once crystals formed. For each solution‚ ∆G the Ksp were found with the temperature and molarity values. ∆H and ∆S were found through the linearization of the data with
Premium Thermodynamics
to 1 O O o Geomorphology and General Systems Theory GEOLOGICAL SURVEY PROFESSIONAL PAPER 500-B = o I i w H Geomorphology and General Systems Theory By RICHARD J. CHORLEY THEORETICAL PAPERS IN THE HYDROLOGIC AND GEOMORPHIC SCIENCES GEOLOGICAL SURVEY PROFESSIONAL PAPER 500-B UNITED STATES GOVERNMENT PRINTING OFFICE‚ WASHINGTON : 1962 UNITED STATES DEPARTMENT OF THE INTERIOR STEWART L. UDALL‚ Secretary GEOLOGICAL SURVEY Thomas B. Nolan‚ Director For
Premium Systems theory Thermodynamics
Social Influence Modeling on Smartphone Usage Masaji Katagiri1‚2 and Minoru Etoh1‚3 1 R&D Center‚ NTT DOCOMO‚ Inc. Yokosuka‚ Kanagawa‚ 239-8536 Japan katagirim@nttdocomo.co.jp‚ etoh@ieee.org Graduate School of Information Science and Technologies‚ Osaka University Suita‚ Osaka‚ 565-0871 Japan 3 Cybermedia Center‚ Osaka University Toyonaka‚ Osaka‚ 560-0043 Japan 2 Abstract. This paper presents a probabilistic influence model for smartphone usage; it applies a latent group model to social influence
Premium Linear algebra Machine learning
Multimedia Compression techniques 4.0 Introduction In this unit we are discussing about the data compression which is very important for multimedia applications because uncompressed graphics‚ audio‚ and video data require considerable storage capacity. Compressing a data file reduces its size‚ and hence it can be easily transferred over the digital network. The amount of compression depends on the compression method and compression rate. The terms compression
Premium Data compression
Salman Ishaq 12-E | 1/27/2013 | | BACKGROUND As energy flows from a liquid‚ its temperature drops. The entropy‚ or random ordering of its particles‚ also decreases until a specific ordering of the particles results in a phase change to a solid. If energy is being released or absorbed by a substance remaining at the same temperature‚ this is evidence that a dramatic change in entropy‚ such as a phase change‚ is occurring. Because all of the particles of a pure substance are identical‚ they all
Premium Melting point Temperature Energy
Thermodynamics Section Review 9A: 1. Scientists believed that the caloric was a material but mainly that it was an invisible fluid consisting of self-repelling particles. Two examples include how gases expand according to Newton’s laws‚ and determining the speed of sound in air. 2. The first person to successfully challenge the caloric theory was Benjamin Thompson. Benjamin observed that a dull boring bit could generate more hat than needed to melt the entire cannon barrel. 3. The significance
Premium Temperature Thermodynamics
Three-Dimensional Structure of Proteins Rotation around the -Carbon in a Polypeptide A Sterically Nonallowed Conformation The Helix and Pleated Sheet Conformationally allowable structures where backbone is optimally Hbonded (linear Hbonds). Helix (3.613 Helix): •3.6 residues/turn •Rise = 0.15 nm/ residue •13-atom hydrogenbonded loop Linus Pauling and Robert Corey‚ 1950 Pleated Sheet: •Anti-parallel or parallel •2.0 residues/”turn” •0.34 nm/residue (anti-parallel) or 0.32 nm/residue
Premium Protein structure Protein
1. 2. carrying capacity the maximum number of a species or “load” that can be sustainably supported by given environment. k and r strategist reproduction K-Strategists (human)– species that are slow growing and produce few‚ large offspring that mature slowly R-Strategists (oyster)– species that grow and mature quickly and produce many small offspring R- and K- selection theory suggests that natural selection may favour individuals with a high reproductive rate and rapid development over
Premium Biology Organism Ecosystem
“Manufacturing And Analysis Of Water Cooler Cum Refrigeration System” By Pandya Dakshesh (120550119016) Patel Dipen (120550119042) Parmar Vishwaraj (120550119052) Bhadru Payal (120550119025) Guided By Mr.Rikesh Patel Assistant Professor Department Of Mechanical Engineering‚ Engineering College‚Tuwa. A Report Submitted To Gujarat Technological University In Partial Fulfilment Of The Requirements For The Bachelor Of Engineering Mechanical Winter 2015 Engineering College‚ Tuwa
Premium Management Electrical engineering Marketing