Striking characteristics of the magnetron ionization gage in helium from 1.9 times 10 to the minus 7 torr to 7 times 10 to the minus 10 torr

Striking characteristics of magnetron ionization gages in helium over low pressure rang

In situ mass analysis of particles by surface ionization mass spectrometry

A qualitative study of the application of surface ionization and mass spectrometry to the in situ detection and constituent analysis of atmospheric particles was conducted. The technique consists of mass analysis of ions formed as a result of impingement of a stream of particles on a hot filament where, it is presumed, surface ionization takes place. Laboratory air particles containing K, Ca, and possibly hydrocarbons were detected. Other known particles such as Al2O3, Pb(NO3)2, and Cr2O3 were analyzed by detecting the respective metal atoms making up the particles. In some cases, mass numbers indicative of compounds making up the particles were detected showing surface ionization of particles sometimes leads to chemical analysis as well as to elemental analysis. Individual particles were detected, and it was shown that the technique is sensitive to Al2O3 particles with a mass of a few nanograms

Assessment of Student Learning as a Driver to Departmental Development

Revising and revitalizing an approach to student learning assessment can be a meaningful growth experience. Being intentional about such development during regular academic planning and reporting cycles is central to leading faculty through change. This session will highlight some strategies that can be used to promote individual- and departmental-level development

Where Is the Conflict between Internalism and Externalism? A Reply to Lohndal and Narita (2009)

Where Is the Conflict between Internalism and Externalism? A Reply to Lohndal and Narita (2009

The common core standards : their history, current status, and implementation in my classroom

Describes a history of national standards, a description of the creation and adoption of the common core standards, and an explanation of how the common core state practices have changed the author\u27s practice of teaching English in New York public schools

Practical knowledge in electrical engineering : applying lessons from industry to the classroom.

Objective: To identify and develop solutions for known gaps in existing electrical engineering curricula, by creating instruction modules applicable in a variety of settings. These instructional packages include: conductor sizing, conduit routing, how to read and create a P&ID, arc flash calculations, and area classification. With regards to conductor sizing, the importance of specifying the correct size of conductor, the standard sizes of conductors, the types of conductor insulation, and finally detail the calculations of conductor sizing and voltage drop will be discussed. The conduit routing module will introduce the student to basic guidelines of conduit routing as well as to different fittings and seals needed in the running of conduit. This is achieved by walking students through the conduit sizing process, including standard conduit sizes. The P&ID module introduces the standard symbols needed to read and understand a piping and instrumentation diagram. Reserved letters are the first topic discussed in this module, then the types of “bubbles” and connection lines, and finally the types of end equipment. The arc flash module will focus on several ways to calculate the energy of an arc flash, as well as the safe working distance for a given piece of electrical equipment. The area classification course will introduce the importance of designing with this identification system in mind. It emphasizes the four different ways of calculating a hazard radius for equipment, both indoors and outdoors. All of the modules have example calculations as well as design projects for the student to check their understanding