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Issues to Be Resolved

Although the shaped nanocrystals have shown a high potential for the enhancement of catalytic activity, selectivity, and long-term stability, there are several issues that need to be resolved to expand their use to practical applications. The shaped nanocrystals are typically too large to effectively utilize expensive precious metals. The stability of the shaped nanocrystals should be carefully evaluated. The shape is often deformed too easily, especially at high temperatures where many practical gas-phase reactions occur. Shaped nanoparticles should also operate stably for long periods of time. Mass production of shaped nanocrystals is another important issue to be addressed properly. Indeed, much work on shaped nanoparticles is still needed to fundamentally understand their catalytic reactions and develop practical catalysts with better catalytic properties. [Pg.38]

The size of the shaped nanocrystals is usually large. Those larger than 100 nm are often observed for shaped Au or Ag nanocrystals. In the case of Pt, shaped nanocrystals are usually observed in the range of 5-10 nm. However, the typical size of [Pg.38]


However, assessing occupational exposure to airborne contaminants in a representative way is not an easy task and requires a good deal of professional judgment and reliance on a good methodology. There are many issues to be resolved, such as... [Pg.368]

While the above list is not exhaustive, it provides an indication of the necessary negotiated issues to be resolved between a consumer (or their representative) and the water authority. [Pg.24]

Knowing the impact of smoke toxic potency on escape from a fire is of sufficient importance that it has been the subject of research for over twenty years. As a result, we now have a realistic picture of proper contexts for the use of toxic potency data and a series of first-generation tools for measuring it. We also have a vision of the key technical issues to be resolved developing a proper small-scale fire simulator, relating rodent results to people, and validating the small-scale data. [Pg.9]

Combating Terrorism Issues to Be Resolved to Improve Counter-terrorist Operations. Washington, D.C. U.S. Government Accounting Office (NSIAD-99-135, May 13) 1999. [Pg.478]

Conclusions. Briefly summarize the overall development process. The summary may include a time line that displays the initiation, key intermediate steps, and completion of work in such critical areas as validation of methods, safety studies, clinical studies, scale-up, process validation, and times of regulatory submissions. The summary should also identify key issues to be resolved (including future work to be done, if any). Finally, the summary should provide a conclusive statement that links each section of the development report and addresses the equivalency of the clinical biobatches to the production batches. Include information from in vivo and invitro studies as appropriate. [Pg.482]

The prognosis of SLE has much improved during recent decades. The overall 10-year survival rate in retrospective series is 75-85% (Ul). The major cause of early death is usually active disease, whereas the leading cause of late death is atherosclerosis (A2). Infection is a major cause of mortality in all stages of SLE (G16). In our experience with SLE in children, the 5-year renal and patient survival rates were 93.1% and 91.08%, respectively (Y4). Several features of SLE have been associated with mortality in a multivariate model (A3). These features include renal damage, thrombocytopenia, very active disease at presentation, and lung involvement. Despite the large decrease in the mortality of SLE patients, there are still many issues to be resolved (G16). [Pg.133]

There are several issues to be resolved in the design of a cooling coil regarding the physical layout of the coil in the vessel. The diameter of the pipe used to make the coil must be specified. In addition, the diameter of the spiral loop and the spacing between the loops must be specified. Should one coil be used, or should several coils be installed in parallel ... [Pg.45]

Action letter An official communication from the FDA to an NDA sponsor that informs of a decision by the agency. An approval letter allows commercial marketing of the product. An approval letter lists minor issues to be resolved before approval can be given. A not approvable letter describes important deficiencies that preclude approval unless corrected. [Pg.376]

Adsorptive Processes. The use of activated carbon, sprayed into a dry/semi dry scrubbing unit along with lime or less frequently packed in an adsorption unit positioned after the particulate removal device and prior to the stack, has become a standard component in gas cleaning trains as a means of PCDD/F control on all sizes of plant fed with MSW or clinical waste. Other adsorptive media such as zeolites are also being tested. The inclusion of an adsorptive device in combustion systems fired with wood and agricultural wastes is not normally contemplated, and as noted above, an interesting issue to be resolved is whether different waste types generate flyash of different activities relative to PCDD/F formation. [Pg.176]

Zealand, was established in 1983 and is the trading name of the New Zealand Biological Producers and Consumers Council Inc. Bio-Gro services organic production systems and its key functions include setting of standards, inspection and certification, promotion of the Bio-Gro trademark and promotion of research and development. To better service the massive growth experienced in the last 2 years, Bio-Gro recently subcontracted inspection services to SGS International. This has necessitated a steep rise in fees for licensees. In 1999 Bio-Gro gained IFOAM certification which has helped facilitate market access into Europe though there are still some issues to be resolved (see section 13.2.5). [Pg.212]

The next issue to be resolved was the selectivity of the organotin compounds. Data indicating that these ionophores act with specific selectivity was reported for the first time in 1979.12 it was now evident that anion transport is due to the permeation of electroneutral ion pairs. At the same time it was proven that the exchange rate of chloride is related to the lipophilicity of the organic ligands, with the tri-n-butyltin... [Pg.327]

Stakeholder consultations. The UK provided detailed consultations with stakeholders on draft allocations that clarified the issues to be resolved and provided the basis for an acceptable allocation program. [Pg.67]

Many developments have emerged since, and the field has seen both successes and controversies. For a recent review of the state of the art, see Ref. [Zwanzig 2001], In many treatments, the authors regard the issues to be resolved. We do not share this view, but want to present some of the basic questions in terms of simple models. [Pg.240]

The Joint theoretical and experimental efforts to extend our knowledge of these useful states to other molecules and to other detection channels should be very fruitful and present new Issues to be resolved. Another theme, so natural In research. Is the study of those cases In which our prevalent Ideas break down. Several examples were cited above, but this Is expected to be a major growth area owing to the expansion both In detailed experimental studies and In the variety of conq>utatlonal methods capable of treating Inter- and Intra-channel coupling and non-Bom-Oppenhelmer effects. In this context, the study of weak channels, such as weak vibrational channels, should be most useful In highlighting the... [Pg.159]

In 1995 the Federal Circuit addressed basic issues concerning the doctrine of equivalents and held that (l)the determination of equivalents is a fact issue to be resolved by the jury ... [Pg.744]

The enantioselective synthesis of organic compounds is one of the key issues to be resolved in the field of synthetic organic chemistry because chiral organic compounds are important as pharmaceutical products, agrochemicals, and fine chemicals. [Pg.311]

Even within the Part IIA system there are opportunities for voluntary action to replace formal enforcement action. There is, in particular, a requirement for enforcing authorities to consult those who will have to pay for remediation before serving any remediation notice. This consultation process is intended not only to enable technical issues to be resolved before there is any need to invoke formal appeals procedures, but also to give landowners and others the opportunity to... [Pg.39]

Hessel, V., Lowe, H., Chemical micro process engineering - current trends and issues to be resolved. Microreactor Technology and Process Intensification, ACS Symposium Series, Vol. 914 (eds. Wang, J., Holladay,... [Pg.127]

Looking back to the position of chemical science at the opening of the eighteenth century, it is now apparent that before chemistry could divest itself of the hardened accretions of alchemy there were certain fundamental issues to be resolved. Chief among them were first, the nature of a chemical element secondly, the nature of chemical composition and chemical change, especially of burning or combustion, and of the so-called element, fire thirdly, the chemical nature of the so-called elements, air and water. [Pg.144]

Continue efforts to overcome the technical hurdles involved in operating the pressurized 1-L voltrme WGS bioreactor. Key issues to be resolved include system pressure control, in-place reactor sterilization, media addition and removal, and pH/ORP monitoring at elevated pressures. [Pg.22]


See other pages where Issues to Be Resolved is mentioned: [Pg.374]    [Pg.166]    [Pg.1049]    [Pg.363]    [Pg.244]    [Pg.147]    [Pg.645]    [Pg.386]    [Pg.321]    [Pg.8]    [Pg.159]    [Pg.374]    [Pg.141]    [Pg.129]    [Pg.48]    [Pg.338]    [Pg.321]    [Pg.7]    [Pg.386]    [Pg.197]    [Pg.498]    [Pg.240]    [Pg.125]    [Pg.302]    [Pg.129]    [Pg.27]    [Pg.463]    [Pg.486]    [Pg.128]   


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