Commercial Components

For a chiral molybdenum-based catalyst available in situ from commercial components, see (a) Aeilts SL, Cefalo DR, Bonitatebus PJ, Houser JH, Hoveyda AH, Schrock RR (2001) Angew Chem Int Ed 40 1452 (b) For the first enantiomerically pure solid-sup-ported Mo catalyst, see Hultzsch KC, Jernelius JA, Hoveyda AH, Schrock RR (2002) Angew Chem Int Ed 41 589 (c) For a chiral Mo catalyst, allowing RCM to small- and medium-ring cyclic amines, see Dolman SJ, Sattely ES, Hoveyda AH, Schrock RR (2002) J Am Chem Soc 124 6991 (d) For a novel adamantyl imido-molybdenum complex with advanced selectivity profiles, see Tsang WCP, Jernelius JA, Cortez GA, Weatherhead GS, Schrock RR, Hoveyda AH (2003) J Am Chem Soc 125 2591... 

Detachable joints are needed to assemble the various parts. They are made up of flanges pressed together with a gasket between. Among the commercial components, the three mostly used flanges for joints in vacuum technology are ... 

An area, in which catalytic olefin metathesis could have a significant impact on future natural product directed work, would be the desymmetrization of achiral molecules through asymmetric RCM (ARCM) with chiral molybde-num-(for a chiral molybdenum-based catalyst available in situ from commercial components, see Refs 156 and 156a-156c) or ruthenium-based catalysts. 

Goltser I, Butler S, Miller JR. Reliability assessment of electrochemical capacitors Method demonstration using 1-F commercial components, Proceedings of the 15th International Seminar on Double Layer Capacitors and Similar Energy Storage Devices, Deerfield Beach, FL, 2005, p. 215. 

In purchasing a pulse NMR spectrometer and magnet, all of these general considerations as well as those discussed in V.B.4. about dealing with manufacturers are applicable. It is wise to buy as flexible an instrument as one can afford. The field of pulse NMR spectroscopy is changing rapidly and it would be tragic to be limited by some needless instrumental characteristics. In addition, it seems to be a fact of life that we never can think of all of the uses of device capabilities until we actually use them. A serious alternative to purchasing a complete spectrometer is to construct one out of commercial components and the reader is referred to section V.C. for further discussions. 

The spectrometer described in the last section (V.C.2.) uses a CAMAC system with mostly commercial components. It consists of a crate with 25 slots, two of which are taken up with a crate controller to interface with a Data General NOVA 1200 computer. The essential modules in the crate, in addition to the controller, are two transient digitizers (each stores 1024 8-bit words recorded at rates up to 20 MHz), one timing module, a GPIB interface, and one X-Y driver. Together with other modules which are primarily used for utility and... 

At present, I have not seen this phenomenon as a serious problem. To be sure, however, it has inhibited a discussion in certain aspects of molecular biology. It is, perhaps, for this reason that the commercial component of university research should never be allowed to increase past a relatively small fraction of the total - say, ten percent. Most science certainly should be open for free discussion, particularly, basic science. As long as the corporate extent of academic funding remains small, 1 do not believe that one is likely to see any serious degree of inhibition of the open exchange of ideas. 

Britt L. The use of commercial components in a high reliability environment. Surface... 

Britt, L., The Use of Commercial Components in a High Reliabihty Environment, Surface Mount Technology (Nov. 2000)... 

Standard commercial components provide a 10-100% range. Special designs can extend this range below 10%, For some critical applications, special designs may also be required to avoid overshooting the pressing force set point. 

The specimen motion required for cone-beam reconstruction is a lateral axes (x, z) translation and a vertical axis P rotation. The scanning cycle needs to be under computer control in order to synchronize mechanical movement with data acquisition. Further, the control must provide a level of accuracy that, at the very least, matches the measured resolution of the x-ray source. In practice, an encoded accuracy in lateral translation of 10,000 counts per mm and a rotational accuracy of 2000 counts per degree of revolution can be achieved with commercial components. 

It should be noted that S/LALLS did not require any instrument construction, although some computer programming was necessary. It utilized proven commercial components in a new combination. 

All of the equipment to build a high-performance liquid chromatograph with electrochemical detection is now relatively standard and commercially available. The apparatus is most frequently assembled from commercial components, or a complete unit can be purchased from the sources listed below ... 

Bulk wave or SAW crystals cannot individually serve as sensors without additional electronic support circuitry and mechanical fixtures. Currently no widely used commercial supplier for electronics or fixtures exists. However, prototype sensing systems can be assembled from literature designs and commercial components. Some of the more recent piezoelectric sensor system designs are discussed below. 

Fewer commercial components are available for the construction of SAW device mass sensor systems. All SAW devices used for sensing have been custom-fabricated. Design parameters for some of these devices have been given by Wohltjen (30-31) and Venema (25). The same references should be consulted for oscillator design, since no commercial circuits are available. 

Operating systems (OS) are common to almost all computing platforms including those used in safety related systems (SRS). OS are commercial components and, as with other off the shelf components, there can be significant difficulties in assessing their dependability cost-effectively. An OS provides a broad range of support services to application software, hence it cannot easily be assessed independently of the services of the application it supports. Also many of the functions of the OS are at a low level, but are so influential to the operation of the system that they become an intrinsic aspect of deployment risk for those systems. Thus we require a specialised approach to assessing dependability of OS. 

Size reductions using already commercialized components and types of fuel and coolant 5-10 years Small PWRs with uranium dioxide fuel Small sodium cooled fast reactors... 

The importance of software components for middleware is due to the fact that frequently, components are the basis for middleware implementation. From a historic perspective, the first commercial component models were COM [5] (from Microsoft) and JavaBeans [6]. These models evolved to. NET [7] and newer versions of Enterprise Java Beans (EJB) [8]. Some of the aforementioned middleware even included newer component-based extensions such as the CORBA Component Model (CCM) [9] in the case of CORBA. 

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