Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Impact determination

At a fourth and final level, the impacts determine which applications are derived from the conception (or from the micro reactor itself). [Pg.1]

While these disadvantages are severe, electron impact determinations play a useful role in suggesting the pattern of variation in bond enthalpy contributions in molecules which have not been studied by conventional thermochemical techniques. A few examples of this are shown in Table 11. Electron impact measurements also indicate that D (Ru-Cp) in ruthenocene is ca. 100 kJ mol-1 greater than D (Fe-Cp) in ferrocene82). [Pg.95]

Monro, J. A., Wallace, A., Mishra, S., Eady, S., Willis, J. A., Scott, R. S., Hedderley, D. (2007). Relative glycaemic impact determined by in vitro digestive analysis compared with in vivo glycaemic response analysis in diverse food groupings. Proceedings of the Nutrition Society of New Zealand, 32, 132-139. [Pg.393]

Figure 3.1 The five most common mechanical tests (I) constant elongation for tensile strength determinations, (2) constant force for creep determinations, (3) fixed elongation for stress relaxation determinations, (4) cyclic strain for dynamic mechanical determinations, and (5) impact for impact determinations. (After J. Fried, Plastics Engineering, July 1982, with permission.)... Figure 3.1 The five most common mechanical tests (I) constant elongation for tensile strength determinations, (2) constant force for creep determinations, (3) fixed elongation for stress relaxation determinations, (4) cyclic strain for dynamic mechanical determinations, and (5) impact for impact determinations. (After J. Fried, Plastics Engineering, July 1982, with permission.)...
The impacted drug fractions are normally measured via a specific chemical assay, although mircoweighing the plates has also been investigated. A number of actuations are normally accumulated for each cascade impaction determination to collect sufficient drug for accurate assay. The United States Pharmacopoeia includes a test for MDIs, using a cascade impactor coupled to a throat of specified dimensions. ... [Pg.2283]

The photolonlzatlon values are in good agreement with earlier electron Impact determinations as summarized by Stevenson (3) who gives A H (CHg-H) - 101.9tl kcal. Kinetic determinations have been recently reviewed by Kerr (4) and yield A H (CHg-H) > 102.5 1 kcal again in excellent agreement. [Pg.595]

The Chemical Industry Position As this paper has shown, cost-benefit analysis has now been incorporated into the regulatory process of many, though not all, agencies dealing with health, safety and the environment. The American chemical industry is, of course, profoundly affected by those agencies, since their rules deal with its operations, its products, its wastes and its relation to the conmunities in which chemical plants are located. It is therefore worthwhile to examine what the position of the industry is toward cost-benefit analysis in regulatory impact determinations. [Pg.169]

In the domain of measurements where MMW spectrometry could make an impact, determination of lower molecular weight volatile compounds with well-developed spectra, pollution management stands out as an attainable challenge. Measurement of ultra-trace constituents in the atmosphere is beyond the reach of MMW techniques without pre-concentration. The analytical requirement for... [Pg.115]

Step 5 Significant impact determination - The evaluation of whether a proposal will significantly affect the environment is a first screening of the proposal to decide whether or not a detailed ElA will be required, and to ensure that a range of alternatives is examined - This may be a simple judgment by the responsible official or advisory body, or it may be based on a formal document, brief but relevant, prepared by a small group of specialists... [Pg.14]

Step 5 Significant impact determination - If the responsible person or group decides that a proposed action will not significantly affect the environment, then a so called negative determination is made (Step 6B) which may involve a public notice or explanation steps are then taken to proceed with the proposed action responsible person a group simply identifies such cases... [Pg.15]

To discriminate between hazards having the same hazard risk index, a risk impact determination is necessary. An impact determination consists of a review of the effect of an event economically, socially and politically. Example Release of a small amount of chemical into a stream may not cause measurable physical damage, but extreme pohtical and social damage could result.)... [Pg.260]

In early 2005, the European Space Agency s Huygens Probe landed on Saturn s largest moon Titan. Soon after the 319-kg probe impacted the surface at a speed of 5 m s, a sudden increase in methane gas concentration was detected. The methane is believed to have been produced by the conversion of liquid methane in the soil to vapor as a result of heating from the impact. Determine the maximum amount of liquid methane that could have been evaporated in this process. State any assumptions that you make. [Pg.421]

The low-temperature testing of fluoroplasties has included tensile, flexural, compressive, torsional and impact determinations. These test results provide a fairly complete profile of the design limitations of the various materials at cryogenic temperatures. These results were obtained using miniature size samples. [Pg.634]

CFCli-CO-CFCl and (CCls)tCO were employed] has been published, kinetic results being correlated with electron-impact determinations of some bond dissociation energies [i)(CXs-CO—CX,) = 280 (CX, = CFjCI), 288 (CX, = CCla), 288 (CX3 = CHj), and 364 (CX = CF,) kJ mol ]. Photolysis results for halogenated ketones are usually discussed in terms of two alternative primary homolyses ... [Pg.159]

Conduct assessment identify threat sources and events identify vulnerabilities and predisposing conditions determine likelihood of occurrence determine magnitude of impact determine risk. (For the close connections of risk, vulnerability and resilience analysis see, e.g., (Pasman et al. 2013)). [Pg.1532]


See other pages where Impact determination is mentioned: [Pg.484]    [Pg.86]    [Pg.82]    [Pg.59]    [Pg.98]    [Pg.111]    [Pg.174]    [Pg.437]    [Pg.449]    [Pg.259]    [Pg.335]    [Pg.50]    [Pg.107]    [Pg.258]    [Pg.274]   
See also in sourсe #XX -- [ Pg.188 , Pg.189 , Pg.190 , Pg.191 , Pg.192 , Pg.193 , Pg.194 ]




SEARCH



Determination of Bond Dissociation Energies by Electron Impact and Spectroscopic Methods

Determination of Impact Sensitivity

Electron-impact dissociation, rate determination

Impact resistance determination methods

Methods of Determining Environmental Impacts

© 2024 chempedia.info