Controlling n-Heptane HCCI Combustion With Partial Reforming: Experimental Results and Modeling Analysis Vahid Hosseini W. Stuart Neill Institute for Chemical Process and Environmental Technology‚ National Research Council‚ Ottawa‚ ON‚ K1A 0R6‚ Canada M. David Checkel University of Alberta‚ Edmonton‚ AB‚ T6G 2G8‚ Canada 1 One potential method for controlling the combustion phasing of a homogeneous charge compression ignition (HCCI) engine is to vary the fuel chemistry using two
Premium Diesel engine Internal combustion engine Combustion
Purpose The purpose of this chemistry lab is to investigate and find patterns/tendencies between substances Introduction An acid is a solution that has more free hydrogen ions (H + ) than hydroxyl ions (OH - ) and a pH less than 7. A base is a solution that has less free hydrogen ions (H + ) than hydroxyl ions (OH - ) and a pH of more than 7. In the late 1800s‚ the Swedish scientist Svante Arrhenius purposed that water can dissolve many compounds by separating them into their individual ions
Premium PH indicator PH Acid
Clays are one of the important natural materials‚ which have been examined for catalytic applications. Clays are characterized by a layered structure and hence they are slippery when wet. They are broadly classified as cationic or smectite type (having layer lattice structure in which two-dimensional oxyanions are separated by layers of hydrated cations) and anionic or brucite type (in which the charge on the layer and the gallery ion is reversed complimentary to smectite type). Anionic clays are
Free Hydrogen Oxygen Oxide
Broca’s Brain. Sagan‚ Carl. Ballantine Books; Reissue edition February 12‚ 1986. http://antoine.frostburg.edu/chem/senese/101/consumer/faq/harispray-ingredients.shtml http://www.dit.ie/DIT/science/chemistry/rsccomp/competition01/hawkesclancy/bedroom/hairspray.html http://householdproducts.nlm.nih.gov/cgibin/household/ brands?tbl=brands&id=16003315 http://www.madsci.org/posts/archives/feb98/884957935.Ch.r.html http://www.psrc.usm.edu/macrog/ http://www.pg.com/science/haircare/hair_twh_111/hair_twh_111_02
Premium Polymer Solution Chemical substance
Chapter 4 Carbon and the Molecular Diversity of Life Lecture Outline Overview: Carbon – The Backbone of Biological Molecules * Although cells are 70–95% water‚ the rest consists mostly of carbon-based compounds. * Carbon is unparalleled in its ability to form large‚ complex‚ and diverse molecules. * Carbon accounts for the diversity of biological molecules and has made possible the great diversity of living things. * Proteins‚ DNA‚ carbohydrates‚ and other molecules that
Premium Carbon Atom Oxygen
Tetrapyrrole compounds: chlorophyll and heme groups By Erwin Lim 1. Tetrapyrrole compounds A tetrapyrrole compound is a chemical group that consists of four pyrroles that are joined together by covalent bonds‚ forming a porphyrin ring. They are naturally occurring pigments‚ which are used in many biological processes (Berg‚ 2009). The basic structure of a tetrapyrrole is as seen in Figure 1‚ while the basic structure of a pyrrole is as seen in Figure 2. Figure 1.Tetrapyrrole Compound (Berg
Premium Chlorophyll Oxygen
BACKROUND INFORMATION Organic chemistry is the study of hydrocarbons and their various deviations. (Ex. natural gas‚ paper‚ proteins‚ carbohydrates) Saturated hydrocarbons are hydrocarbons with carbon-carbon single bonds. (Ex. C-C) Unsaturated hydrocarbons are hydrocarbons with one of more multiple carbon-carbon bonds. (Ex. C=C double bond‚ triple bond‚ or both) Stereoisomers have the same molecular and structural formulas but different orientations of atoms in space. Constitutional isomers
Premium Functional group Alcohol Amino acid
Against effect of melatonin and its combination with therapeutic exercise on Doxorubicin induced Cardiotoxicity Tserentogtokh Lkhagvasuren1‚ Seunghoon Lee2‚ Jeong-Hwa Hong1‚ and Yonggeun Hong2‚3. 1Department of Smart Foods & Drugs‚ Inje University‚ 2Department of Rehabilitation Science‚ Inje University‚ 3Cardiovascular & Metabolic Disease Center‚ Inje University‚ Gimhae‚ Gyeongnam 621-749‚ Korea Abstract Doxorubicin (DOX) has been known as strong therapeutic effective in cancers. DOX
Premium Heart Chemotherapy Cardiology
Lieberman-Burchard is a reagent used in a colorimetric test to detect cholesterol‚ which gives a deep green color. This color begins as a purplish‚ pink color and progresses through to a light green then very dark green color. The color is due to the hydroxyl group (-OH) of cholesterol reacting with the reagents and increasing the conjugation of the unsaturation in the adjacent fused ring. Because this test uses acetic anhydride and sulfuric acid as reagents caution must be exercised so as not to receive
Premium Cholesterol Green
a. Hydroxyl group is a hydrogen atom and oxygen atom‚ which is bonded to a Carbon atom. Is polar because the electrons spend more time by the negative oygen atom. Helps dissolve organic compounds because of ability to form hydrogen bonds. b. Carbonyl group
Premium Oxygen Chemical bond Atom