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Recommended Conferences for Molecular Structure

Molecular Structure


As per available reports on Molecular structure 5 Relevant journals, 72 Conference proceedings (i.e. Smart Materials, Wireless Communication, Industrial Engineering, Condensed Matter Physics, Electronics) are presently dedicated to Molecular structure and about 5 Open access articles are being published and 17 National Symposiums.


Molecular Structure is the combination of the atoms, groups or ions relative to one another in a molecule, as well as the number and location of chemical bonds. Molecules are made of fixed numbers of atoms joined together by covalent bonds, and can range from the very small (even down to single atoms, as in the noble gases) to the very large (as in polymers, proteins or even DNA). The covalent bonds holding the molecules together are very strong, but these are largely irrelevant to the physical properties of the substance. Physical properties are governed by the intermolecular forces-forces attracting one molecule to its neighbors - Vander Waals attractions or hydrogen bonds. Molecular substances tend to be gases, liquids or low melting point solids, because the intermolecular forces of attraction are comparatively weak. You don't have to break any covalent bonds in order to melt or boil a molecular substance. The size of the melting or boiling point will depend on the strength of the intermolecular forces. The presence of hydrogen bonding will lift the melting and boiling points. The larger the molecule the more Vander Waals attractions are possible - and those will also need more energy to break. Most molecular substances are insoluble (or only very sparingly soluble) in water. Those which do dissolve often react with the water, or else are capable of forming hydrogen bonds with the water. Molecular substances are often soluble in organic solvents - which are they molecular. Both the solute (the substance which is dissolving) and the solvent are likely to have molecules attracted to each other by van der Waals forces. Although these attractions will be disrupted when they mix, they are replaced by similar ones between the two different sorts of molecules. Molecular substances won't conduct electricity.

Even in cases where electrons may be delocalized within a particular molecule, there isn't sufficient contact between the molecules to allow the electrons to move through the whole solid or liquid. The hydrogen bonding forces a rather open structure on the ice - if you made a model of it, you would find a significant amount of wasted space. When ice melts, the structure breaks down and the molecules tend to fill up this wasted space. This means that the water formed takes up less space than the original ice. Ice is a very unusual solid in this respect - most solids show an increase in volume on melting. When water freezes, the opposite happens - there is an expansion as the hydrogen bonded structure establishes. Most liquids contract on freezing. Remnants of the rigid hydrogen bonded structure are still present in very cold liquid water, and don't finally disappear until 4°C. From 0°C to 4°C, the density of water increases as the molecules free themselves from the open structure and take up less space. After 4°C, the thermal motion of the molecules causes them to move apart and the density falls. That's the normal behavior with liquids on heating.

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Scope and Importance:

Yield strength is the lowest stress that produces a permanent deformation in a material. In some materials, like aluminium alloys, the point of yielding is difficult to identify, thus it is usually defined as the stress required to cause 0.2% plastic strain. This is called a 0.2% proof stress.[5]

Compressive strength is a limit state of compressive stress that leads to failure in a material in the manner of ductile failure (infinite theoretical yield) or brittle failure (rupture as the result of crack propagation, or sliding along a weak plane - see shear strength).

Tensile strength or ultimate tensile strength is a limit state of tensile stress that leads to tensile failure in the manner of ductile failure (yield as the first stage of that failure, some hardening in the second stage and breakage after a possible "neck" formation) or brittle failure (sudden breaking in two or more pieces at a low stress state). Tensile strength can be quoted as either true stress or engineering stress, but engineering stress is the most commonly used.

Fatigue strength is a measure of the strength of a material or a component under cyclic loading,[6] and is usually more difficult to assess than the static strength measures. Fatigue strength is quoted as stress amplitude or stress range (\Delta\sigma= \sigma_\mathrm{max} - \sigma_\mathrm{min}), usually at zero mean stress, along with the number of cycles to failure under that condition of stress.

Impact strength, is the capability of the material to withstand a suddenly applied load and is expressed in terms of energy. Often measured with the Izod impact strength test or Charpy impact test, both of which measure the impact energy required to fracture a sample. Volume, modulus of elasticity, distribution of forces, and yield strength affect the impact strength of a material. In order for a material or object to have a high impact strength the stresses must be distributed evenly throughout the object. It also must have a large volume with a low modulus of elasticity and a high material yield strength

Market Analysis

Advanced materials category covers a range of industries including ceramics, glass, metals, alloys, construction materials and other high technology processing areas. 2009 was one of the most difficult years for the global economy, and the material test equipment market was no exception, witnessing an almost xx percent decline in revenue.

The U.S. Bureau of Labor Statistics (BLS) produces annual wage estimates for more than 800 individual occupations. Newly released figures for 2012 put BLS Code 19-2032 (an occupational group encompassing materials scientists) in 82nd place in yearly wages. The group, which includes 7,970 employees across the country, posted an average annual salary of $89,740.

List of Best International Conferences

1.      2nd Smart Materials and Structures Conference

         February 29-March 02, 2016-Philadelphia, USA

2.      4th Wireless Communication and Network Conference

         September 21-23, 2015-Baltimore, USA

3.      2nd Ceramics and Composite Materials Conference

         July 25-27, 2016-Berlin, Germany

4.      2nd Industrial Engineering Conference

         November 16-18, 2015-Dubai, UAE

5.      Design and Production Engineering Conference 

         July 25-26, 2016-Berlin, Germany

6.      5th Mesoscopic and Condensed Matter Physics Conference

          October 27-29, 2016 Chicago, USA

7.       Electronics and Electrical Engineering Conference

         November 03-05, 2015-Valencia, Spain

8.      3rd Mechanical and Aerospace Engineering Conference

         October 05-07, 2015-San Francisco, USA

9.     Polymer Chemistry Conference

         November 14-16, 2016-Atlanta, USA

10.    5th Nanotek Conference

       November 16-18, 2015-San Antonio, USA

11.    2nd Automobile Engineering Conference

         July 11-12, 2016-Cologne, Germany

12.    Biometrics and Biostatistics Conference

         November 16-18, 2015-San Antonio, USA

13.    2nd Biomedical Engineering Conference

         November 30-December 02, 2015-San Antonio, USA

14.     Wind Energy Conference

         July 28-30, 2016-Berlin, Germany

15.     Construction and Steel Structure Conference

         November 16-18, 2015-Dubai, UAE

16.     4th Materials Science and Engineering Conference

          September 14-16, 2015-Florida, USA

17.    2nd ATC-SEI Conference on Improving the Seismic Performance of Existing Structures

         December 10-12, 2015 - San Francisco, CA

18.    Geotechnical & Structural Engineering Congress

         February 14-17, 2016 - Phoenix, AZ

19.     Electrical Transmission and Substation Structures Congress

         September 27-October 1, 2015, Branson, Missouri

20.     Structural Engineering Summit

         September 30 - October 3, 2015, Red Rock Resort, Las Vegas

21.     2nd Conference on Performance-based and Lifecycle Structural Engineering

         Brisbane, Australia from 9th to 11th December 2015

 

Relevant Society and Associations

  1. Eta Kappa Nu
  2. Institute of Biological Engineering
  3. Institute of Electrical and Electronics Engineers
  4. Institute of Industrial Engineers
  5. Institute of Transportation Engineers
  6. National Society of Black Engineers
  7. National Society of Professional Engineers
  8. Order of the Engineer
  9. Pi Tau Sigma
  10. Society for the Advancement of Material and Process Engineering[2]
  11. Society of American Military Engineers
  12. Society of Automotive Engineers
  13. Society of Broadcast Engineers
  14. Society of Fire Protection Engineers
  15. Society of Hispanic Professional Engineers
  16. Society of Manufacturing Engineers
  17. Society of Naval Architects and Marine Engineers
  18. Society of Petroleum Engineers
  19. Tau Beta Pi Engineering Honor Society
  20. The Tire Society

Companies

  1. AECOM
  2. AKT II
  3. Arup
  4. Atkins
  5. Buehler & Buehler
  6. CBM Engineers
  7. Dar Al-Handasah
  8. Expedition Engineering
  9. Exponent
  10. Econs Engineering Inc
  11. Geiger Engineers
  12. HDR
  13. Hi-Tech Engineering Services
  14. Karmayog Structural engineers
  15. KUMAR
  16. LeMessurier Consultants
  17. Leslie E. Robertson Associates
  18. Louis Berger Group
  19. Magnusson Klemencic Associates
  20. Mott MacDonald

This page will be updated regularly.

This page was last updated on 15th Sep, 2015

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