The study of plasma-boundary interactions Quarterly report, 1 Sep. - 30 Nov. 1967

Electrode drag force measurements in boundary interactions of pulsed accelerator plasm

Plasma boundary interactions - 2

Model of plasma boundary interaction

Listening to loan officers: the impact of commercial credit standards on lending and output

Over most of the last thirty-three years, the Federal Reserve has polled a small number of bank loan officers about their moves to tighten or ease commercial credit standards. Although the Senior Loan Officer Opinion Survey uses a small sample and gathers only qualitative information, it proves to be a useful tool in predicting changes in commercial lending and output. The authors find a strong correlation between tighter credit standards and slower loan growth and output, even after controlling for credit demand and other predictors of lending and output. The analysis also shows that the loan officer reports can help predict narrower measures of business activity, including inventory investment and industrial production.Bank loans ; Business cycles ; Forecasting

Laser-assisted solar cell metallization processing

Laser-assisted processing techniques for producing high-quality solar cell metallization patterns are being investigated, developed, and characterized. The tasks comprising these investigations are outlined

Skillful management of exodontia complication to prevent dreadful sequelae

Successful surgical treatments depend upon accurate diagnosis, judicious treatment planning, selection and execution of an appropriate surgical technique, and on a well monitored post-operative period. However, despite these precautions, extraction of teeth (particularly third molar) is exposed to the accidents and complications common to all buccomaxillary and facial interventions. A maxillary third molar may be displaced in maxillary sinus, nearby soft tissue, or may migrate in a superioposterior direction towards paraphyrangeal space, or infratemporal fossa. Dislocating the maxillary third molar in infratemporal fossa is one of the worst nightmare as this area has complex anatomy consisting of vital neurovascular tissues and complex fascial spaces. The extent of displacement depends upon anatomical conditions as well as direction and amount of force applied. Complication arises from error in judgment, improper use of instruments, the application of extreme force or failure to obtain full visualization before acting. Various researchers have given their opinion regarding immediate or delayed removal of tooth pushed in infratemporal fossa but almost all agree that each case should be weighed independently for risk and reward before attempting. Here we present a case in which intraoral approach was taken to retrieve the displaced tooth thus preventing potentially dreadful complications

The study of plasma boundary interactions Quarterly report, 1 Mar. - 31 May 1968

Determination of arc velocity of rotating plasma by back emf and time of flight method

A study on clinical attachment loss and gingival inflammation as etiologic factors in pathologic tooth migration

Background: Several etiologic factors have been listed for pathologic migration of periodontally involved teeth based mainly on clinical observations with scarce scientific evidence. Present study was carried out to find out relationship of clinical attachment loss and gingival inflammation with pathologic tooth migration.Materials and Methods: A total of 37 patients having 50 pairs of migrated and non-migrated contralateral teeth were taken into consideration.Results: Mean total attachment loss per tooth in migrated and non migrated tooth is 13.32 ± 0.74 S.E. and 8.34 ± 0.58 S.E., respectively (P < 0.001), which reveals a positive correlation. There seems to be an association between frequency of migration and severity of attachment loss since highest percentage of migrations were seen in maximum total attachment loss group. Relationship could not be established between severity of attachment loss and severity of migration for which more data may be required. Also, it was seen that gingival index was significantly higher in migrated group.Conclusion: Findings suggest that there exists a direct relationship between pathologic migration and clinical attachment loss as well as gingival inflammation. Clinical relevance: Results emphasize the importance of early treatment of periodontitis to curb inflammation, which seems to be more important since it is completely reversible, and attachment loss also in order to prevent unaesthetic complications. Moreover bleeding along with recent change in position of teeth should be considered as important sign of active, moderate to severe periodontal disease by general dentists and hygienists so that they can refer for specialist consultation

Processing of aluminum-graphite particulate metal matrix composites by advanced shear technology

Copyright @ 2009 ASM International. This paper was published in Journal of Materials Engineering and Performance 18(9) and is made available as an electronic reprint with the permission of ASM International. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplications of any material in this paper for a fee or for commercial purposes, or modification of the content of this paper are prohibited.To extend the possibilities of using aluminum/graphite composites as structural materials, a novel process is developed. The conventional methods often produce agglomerated structures exhibiting lower strength and ductility. To overcome the cohesive force of the agglomerates, a melt conditioned high-pressure die casting (MC-HPDC) process innovatively adapts the well-established, high-shear dispersive mixing action of a twin screw mechanism. The distribution of particles and properties of composites are quantitatively evaluated. The adopted rheo process significantly improved the distribution of the reinforcement in the matrix with a strong interfacial bond between the two. A good combination of improved ultimate tensile strength (UTS) and tensile elongation (e) is obtained compared with composites produced by conventional processes.EPSR

RAMONA-4B code for BWR systems analysis

The RAMONA-4B code is a coupled thermal-hydraulic, 3D kinetics code for plant transient analyses of a complete Boiling Water Reactor (BWR) system including Reactor Pressure Vessel (RPV), Balance of Plant (BOP) and containment. The complete system representation enables an integrated and coupled systems analysis of a BWR without recourse to prescribed boundary conditions