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101.
THE PHENOMENON OF NITROGEN NARCOSIS HAS BEEN INVESTIGATED WITHIN THE FRAMEWORK OF THE PHYSIOLOGICAL AND MEDICAL TRADITIONS. IT IS PROPOSED THAT NITROGEN NARCOSIS BE VIEWED AS A SYSTEMIC PHENOMENON THAT CAN BEST BE UNDERSTOOD BY OBSERVING THE TOTAL INTACT ORGANISM FUNCTIONING IN A HYPERBARIC ENVIRONMENT. A SYSTEMATIC BEHAVIORAL INVESTIGATION, WITH AN EMPHASIS ON METHODOLOGICAL SOPHISTICATION, WOULD YIELD IMPORTANT CONTRIBUTIONS TO THE UNDERSTANDING OF THE MECHANISMS UNDERLYING NITROGEN NARCOSIS. WITH THE ADVENT OF SATURATION DIVING, THE REDUCTION OR ELIMINATION OF NITROGEN NARCOSIS HAS BECOME A BEHAVIORAL PROBLEM OF EXTREME IMPORTANCE. (48 REF.) (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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103.
J. R. DeELL P. M. A. TOIVONEN J. DOUSSINEAU C. ROGER C. VIGNEAULT 《Journal of food quality》2003,26(3):211-218
Abstract The objective of this study was to evaluate the use of an antifog shrinkfilm, as an overwrap, sealed bag, vacuum–sealed bag, or vacuum– and heat–sealed bag, to maintain the postharvest quality of cauliflower during storage. The antifog shrink film improved quality retention and cauliflower packaged using any of the four methods exhibited less weight loss than controls (unwrapped) after 23 days in storage at 0–1C or 10C. The overwrap and sealed bag treatments resulted in higher appearance ratings and less curd browning and butt discoloration after storage at 0–1C. Shrinking the film with heat and/or vacuum may have damaged the tissue, providing a more favorable environment for microorganism growth, since more decay was found on these curds. 相似文献
104.
Simulation is a popular tool for modelling and analysing modern manufacturing systems. Choosing an appropriate simulation approach for a long-term research activity is not an easy task. This report discusses the issues involved in selecting a simulation approach to support research in real-time resource allocation decisions in manufacturing. A review of current directions in simulation software is presented. Specialized simulation needs of university-based research are described. After evaluating our needs with respect to the available options, we found that an object-oriented programming paradigm suits our needs best. 相似文献
105.
J.R. DeELL P.M.A. TOIVONEN F. CORNUT C. ROGER C. VIGNEAULT 《Journal of food quality》2006,29(1):65-75
The objective of this study was to determine if the addition of sorbitol (a water absorbent) to packages containing potassium permanganate (KMnO 4 ) on an inert carrier (a volatile adsorber) could be used to enhance the removal of volatiles associated with off‐odors in broccoli (Brassica oleracea L., Italica group) during storage in modified atmosphere packaging (MAP). Broccoli heads were held in PD‐961EZ bags (five per bag), to allow CO2 to accumulate above the recommended 5–10%. Six treatments within MAP were investigated: (1) control ? 0‐g sorbitol + 0 g‐KMnO4; (2) 0‐g sorbitol + 20.0‐g KMnO4; (3) 2.5‐g sorbitol + 20.0‐g KMnO4; (4) 5.0‐g sorbitol + 20.0‐g KMnO4; (5) 10.0‐g sorbitol + 20.0‐g KMnO4; and (6) 20.0‐g sorbitol + 20.0‐g KMnO4. Broccoli heads in MAP with sorbitol had better appearance, firmness and odor ratings after 29 days of storage at 0–1C, compared to the controls. Furthermore, the odor rating was higher (less off‐odor) as the amount of sorbitol was increased (1.9 control versus 3.9 for 20‐g sorbitol). Slight increases in weight loss (≤1.3%) of the broccoli were also noted with the addition of sorbitol, although not near an amount that would affect marketability. Acetaldehyde concentrations were higher in the control bags with no sorbitol or KMnO4 after 29 days of storage at 0–1C (0.21 versus 0.00–0.02 μL/L with KMnO4 and/or sorbitol), while ethanol content was greater in both control bags and those with only KMnO4 (0.12–0.13 versus 0.00–0.06 μL/L with sorbitol). Chlorophyll fluorescence (ΦPSII) began to decrease more rapidly in the control broccoli, as the ethanol and acetaldehyde began to accumulate. Overall, the use of sorbitol (≥2.5 g) with KMnO4 in MAP could enhance the removal of volatiles that are responsible for off‐odors and off‐flavors in broccoli, and thus maintain the quality and marketability longer. 相似文献
106.
This paper demonstrates a new approach to the building of a syntax-directed editor (SDE). The approach does not force the user to adopt a top-down syntax-oriented view of editing but supports the traditional text-editing approach of deciding which token to write next. Choices are made from menus listing only the tokens that are syntactically legal at a given point. The actual menus used by the editor are created by reference to the tables used by an LALR parser-generator. 相似文献
107.
An important problem in reconstructability analysis, and modelling in general, is determination of the set of simplest models, all of which acceptably represent the information contained in a given overall system. Evaluation of these models depends on acceptability (semantic) criteria and structural criteria. Structural criteria determine whether one model is simpler than another. In this paper we assume the existence of acceptability criteria and mechanisms to determine if given models meet them. The general problem we solve is how to most efficiently generate the set of all models. We use these results to determine the set of simplest models that satisfy the acceptability criteria
The main results of the paper are: a procedural definition of a recursive Boolean lattice that is based on recursive partitioning of the set of models, a definition of a spanning tree of the lattice of models, and algorithms for non-duplicating generation and search of the lattice of models. The generation and search algorithms fall into two categories: (i) iterative and recursive algorithms that implement the definition of the spanning tree and use it to determine the set of simplest models; (ii) algorithms that implement recursive partition search of the lattice of models. Two algorithms for recursive partition search are given, one that applies the procedural definition of a recursive Boolean lattice to the full set of models, and one that first partitions the full set into C-Structure equivalence classes, and then applies the definition of the recursive Boolean lattice to the equivalence classes. 相似文献
108.
109.
12 ACTORS WERE TRAINED AS INTERVIEWERS TO BE EITHER ACTIVE-FRIENDLY, ACTIVE-HOSTILE, PASSIVE-FRIENDLY, PASSIVE-HOSTILE, OR SILENT. SS LISTENED TO A TAPED NARRATIVE OF A COLLEGE STUDENT DISCUSSING HIS PROBLEMS, AND THEN PARTICIPATED IN A 15-MIN INTERVIEW IN WHICH THEIR TASK WAS TO RECALL THE TAPED MATERIAL, WORK TOWARD A SOLUTION OF THE PROBLEM PRESENTED ON THE TAPE, AND DESCRIBE THEMSELVES WITH REFERENCE TO THE TAPE NARRATOR. RESULTS INDICATE THAT WHILE FRIENDLY INTERVIEWERS WERE BEST LIKED, ACTIVE INTERVIEWERS WERE MOST SUCCESSFUL IN SUSTAINING THE VERBALIZATION RATES OF THEIR SS. SILENT INTERVIEWERS PRODUCED THE LEAST S TALK TIME. HIGH-PATHOLOGY-ADMITTING SS (MMPI) SPOKE ABOUT "PROBLEMS" IN THE INTERVIEW MORE THAN LOW-PATHOLOGY-ADMITTING SS. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
110.
ABSTRACT Large grained (> 50 μm < 100 μm) poly crystalline silicon films have been formed using a patented electrostatic deposition method which utilizes charged panicle motion in an electric field. After deposition, the films are heat treated at varying times and temperatures in a programmable furnace maintained under a purified argon atmosphere Solar cells were fabricated using these large grained polycrystalline silicon films by sputtering pure gold as back contacts and using high quality silver paint as front contacts. The cells have shown efficiencies of 1.8% indicating that great potential exists for significant improvement. 相似文献