Recent regulatory guidelines have raised compliance issues for most of the industry’s inventory of offshore tanks. Hydro Carbon took this opportunity to develop an improved design: an ASME-certified, U-stamped marine portable tank.
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Carbon neutral by 2020? In 2013, we decided Hydro would be carbon neutral in a life-cycle perspective by the end of 2020. We made it – ahead of schedule. Apr 26, 2021 If your Mac is using an earlier version of any Mac operating system, you should install the latest Apple software updates, which can include important security updates and updates for the apps that are installed by macOS, such as Safari, Books, Messages, Mail, Music, Calendar, and Photos. Stack Exchange network consists of 176 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Hydrocarbon, any of a class of organic chemical compounds composed only of the elements carbon and hydrogen. Hydrocarbons are the principal constituents of petroleum and natural gas and serve as fuels, lubricants, and raw materials for various products. Learn about the types, structures, and uses of hydrocarbons.
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Abstract
The Foundations of Chemistry SCC 110 course is required for LaGuardia’s Health Sciences students interested in the Nursing, Dietetic Technician and Veterinary Technician programs. This course has been designated for the Inquiry and Problem Solving competency as well the Digital Communication ability. SCC 110 students will use SCC 110 lecture material and information in the SCC 110 lab manual to perform an electrophilic addition. Students will be able to correlate the organic theory concepts with the experiment by making physical observations (e.g., color changes) when carrying out the lab procedures. The student findings will be synthesized and expressed by making an in-class video and drawing the reaction using chemistry software.
Students, who successfully complete the hydrocarbon reaction lab and produce a corresponding satisfactory digital media report, will ideally have engaged in the assignment for at least three hours in lab followed by an additional 2-3 hours completing the digital components of the lab. The assignment is worth 2.5% of the final grade and is at the midpoint in the core competency for health sciences. This lab assignment was developed in the CTL seminar- Pedagogy of the Digital Ability where assignments were devised in the seminar followed by revisions of the assignment in a charrette format.
The assignment will enable students to use digital media to explain complex chemistry concepts while improving digital literacy. In more detail, this is shown where SCC 110 students are asked to submit/upload a video of themselves performing an organic chemical reaction and providing audio commentary on the experimental observations with an explanation of the underlying chemistry principles. The second part of the assignment will entail students using chemistry software to draw out the chemical reaction from the lab and uploading the two digital media products in their ePortfolio. The crafted digital report addresses all four dimensions of the digital communication rubric with an emphasis on multimodal communication. It describes both on a macroscopic and microscopic level the step by step organic reaction of an alkene plus bromine to create a haloalkane. Students will be able to use appropriate scientific language to explain the reaction mechanism to the undergraduate scientific student community. The design of the experiment incorporates one of SCC 110’s course objective, which is to “introduce students to concepts about chemical bonding.”
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Recommended Citation
Mark, Kevin, 'Hydrocarbon Reaction Experiment [Chemistry]' (2018). CUNY Academic Works.
https://academicworks.cuny.edu/lg_oers/50
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Abstract
In the 1980's, it was noticed by molecular chemists that the stability and boiling point of certain molecules were related to the number of independent vertex sets in the molecular graphs of those chemicals. This led to the definition of the Merrifield-Simmons index of a graph G as the number of independent vertex sets in G. This parameter was extended by graph theorists, who counted independent sets of different sizes and defined the independence polynomial F_G(x) of a graph G to be sum_k F_k(G)x^k where for each k, F_k(G) is the number of independent sets of k vertices. This thesis is an investigation of independence polynomials of several classes of graphs, some directly related to molecules of hydrocarbons. In particular, for the graphs of alkanes, alkenes, and cycloalkanes, we have determined the Merrifield-Simmons index, the independence polynomial, and, in some cases, the generating function for the independence polynomial. These parameters are also determined in several classes of graphs which are natural generalizations of the hydrocarbons. The proof techniques used in studying the hydrocarbons have led to some possibly interesting results concerning the coefficients of independence polynomials of regular graphs with large girth.
Recommended Citation
Byrum, Cameron Taylor, 'Independence Polynomials of Molecular Graphs' (2011). Electronic Theses and Dissertations. 1323.
https://egrove.olemiss.edu/etd/1323
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