Big Chemical Encyclopedia

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

Articles Figures Tables About

Objectivity, and completeness

Life-cycle analysis, in principle, allows an objective and complete view of the impact of processes and products on the environment. For a manufacturer, life-cycle analysis requires an acceptance of responsibility for the impact of manufacturing in total. This means not just the manufacturers operations and the disposal of waste created by those operations but also those of raw materials suppliers and product users. [Pg.296]

Scientists have a responsibility to their profession and to future generations to facilitate the objective and complete evaluation of the potential health and environmental hazards of pesticides. We are all living today with the consequences of the failures of the past. It is time to put into practice the old adage that an ounce of prevention is worth a pound of cure. ... [Pg.478]

A self-assessment will provide benefits however, an assessment conducted by rm outside resource provides a greater sense of the big picture in terms of objectivity and completeness. Should you want to begin with an internal study of maintenance, here ace some guidelines to consider when using The Scoreboard for Maintenance Excellence. [Pg.1595]

An X-ray image of a test object is converted by a X-ray TV unit (4), and complete video-signal from it is supplied to specialized computer (5). For conversion of X-ray images series X-ray vidicons LI-444 and LI-473 can be used or experimental X-ray vidicons of the same dimensions with a Be input window [2] sensitive to soft X-radiation developed in Introscopy Institute. >. ... [Pg.449]

The main difference from the relational DBS is that the data are now stored in object types with a unique identity number (ID), attributes, and operations. Therefore, the relationship between objects is completely different from that in an RDBMS. [Pg.236]

There is no combination of chemical or physical analyses which can, or is ever likely to, replace human sensory evaluation completely. Sensory examination of wines employs two major approaches detecting differences and evaluating quaUty or, more briefly, analytical and hedonic (16,19). The former can be objective and the latter is inevitably somewhat subjective regardless of the expertise of the judges. [Pg.369]

Managers can use QRA to study small-scale, as well as large-scale, problems. For example, a QRA can be performed on a small part of a process, such as a storage vessel. Depending upon the study objectives, a complete QRA (both frequency and consequence estimates are made) could require as little as a few days to a few weeks of technical effort. On the... [Pg.28]

Metrization is a very computer-intensive operation. Computer time can be saved by using a partially random sequence [43] and tenninating the process after 4N distances [51] (a tliree-dimensional object is completely specified by 4N — 10 distances). [Pg.260]

Natural product total syntheses are particularly valuable when they are attended by the development of general utility methods of synthesis. In some instances, the successful completion of a natural product total synthesis requires the development and application of a new synthetic method. The total synthesis of erythronolide B by Corey et al. is one of these instances. The double activation macro-lactonization method was a fruitful innovation that was introduced in response to the challenge presented by the macrocyclic structures of the erythromycins. Several other methods to achieve the same objective, and numerous applications followed. [Pg.183]

To complete the synthesis of thienamycin, it only remains to cleave the carbamate and ester functions in 23. Catalytic hydrogenation of 23 accomplishes both of these objectives, and furnishes (+)-thienamycin (1). Synthetic (+)-thienamycin, prepared in this manner, was identical in all respects with natural thienamycin. [Pg.256]

One costly form of degradation is corrosion of metallic objects and structures. Organic coatings are widely used to protect these objects from corrosion. No completely acceptable and predictive methods exist for the evaluation of corrosion protection. Since corrosion is an electrochemical phenomenon, electrochemical testing may provide the evaluation tools which are wanting. [Pg.88]

This equation shows that only limited information is preserved. In particular, depending on the spatial frequency Mo, no information is transferred at all at the zeroes of the phase-contrast function sin(x). The loss of information is even more serious when the phase object approximation holds and for ideal imaging in that case the phase information is completely lost in the Gaussian image of the object and special methods the so-called phase-contrast [94,95] methods should be employed in order to partly recover this information. [Pg.141]

Observation. The time of observation is about 2-4 hocus for vital preparation and several days for fixed preparations. All the preparations may be analyzed by 3-channel simultaneous detection to receive common complicated interference image of the object and details of its structure (see experiment 1) by receiving 20 visual slices (optical sections) or the complete volume (the information must be also quantitatively extracted) (see experiment 2) by computer modelling the images as well as mathematical analysis (experiments). [Pg.116]

Dual Photo/Thermal Initiation Studies. A series of studies were performed using reactive formulations containing both a photoinitiator and a thermal initiator dissolved in the Derakane resin. The objective of these studies was to investigate a dual cure strategy in which the heat liberated by the photo-induced polymerization leads to the production of additional active centers by the dissociation of a thermal initiator. In this way, the dual cure strategy could offer both the temporal control of the start of the reaction afforded by the photopolymerization, as well as enhanced reaction rate and completeness of cure provided by the thermal initiation. [Pg.214]

Eradication of the offending organism and complete clinical cure are the primary objectives. Associated morbidity should be minimized (e.g., renal, pulmonary, or hepatic dysfunction). [Pg.487]

Set objectives and delegate responsibilities Based on (1) and (2), define the objectives and subobjectives of the investigation (the investigation team does this). Delegate responsibilities to team members with suggested completion times. [Pg.519]

Finally in Chapter 8, all conclusions made during the research will be discussed in respect to the overall scope and research questions posed in this thesis. From this discussion general conclusions about the research performed in this thesis will be made. The research objective and research questions will be listed to check if the objective is achieved and if the questions can be answered completely and correctly. Finally, any additional questions arising from this research will suggest the scope of future research. [Pg.42]


See other pages where Objectivity, and completeness is mentioned: [Pg.567]    [Pg.407]    [Pg.110]    [Pg.88]    [Pg.567]    [Pg.407]    [Pg.110]    [Pg.88]    [Pg.218]    [Pg.508]    [Pg.2587]    [Pg.276]    [Pg.429]    [Pg.383]    [Pg.521]    [Pg.330]    [Pg.125]    [Pg.151]    [Pg.323]    [Pg.362]    [Pg.626]    [Pg.13]    [Pg.231]    [Pg.187]    [Pg.48]    [Pg.104]    [Pg.142]    [Pg.6]    [Pg.69]    [Pg.419]    [Pg.1316]    [Pg.354]    [Pg.331]    [Pg.122]    [Pg.76]    [Pg.256]   


SEARCH



© 2024 chempedia.info