Related Studies in Long Term Lithium Battery Stability

The continuing growth of the use of lithium electrochemical systems in a wide variety of both military and industrial applications is primarily a result of the significant benefits associated with the technology such as high energy density, wide temperature operation and long term stability. The stability or long term storage capability of a battery is a function of several factors, each important to the overall storage life and, therefore, each potentially a problem area if not addressed during the design, development and evaluation phases of the product cycle. Design (e.g., reserve vs active), inherent material thermal stability, material compatibility and self-discharge characteristics are examples of factors key to the storability of a power source

The First Amendment Right to a Public Forum

When faced with organized protest against governmental policies, groups controlling governmental processes often seek to avoid change and a resulting diminution of power by denying dissenting groups access to facilities for communication of grievances to the community. In many situations this denial of access takes the form of barring dissenters from the use of public communication facilities. Yet, the first amendment seems to place the Constitution on the side of free access to the community. The first amendment\u27s prohibition on denial of access to communication facilities has been termed the right to a public forum, and has been the subject of scrutiny by the Supreme Court in Food Employees Local 590 v. Logan Valley Plaza, Inc., 391 U. S. 308 (1968), and Red Lion Broadcasting Co. v. FCC, 395 U. S. 367 (1969)

Naval Postgraduate School PANSAT: Lessons Learned

AIAA Space 2001 - Conference and Exposition, Albuquerque, NM, August 28-30, 2001The Petite Amateur Navy Satellite (PANSAT) was launched aboard the STS-95 Discovery Shuttle on 29 October 1998. PANSAT was inserted into a circular, low-Earth orbit at an altitude of 550 km and 28.45° inclination on 30 October 1998. PANSAT continues to operate and support the educational mission at NPS even after reaching its two-year design life. The research aspect also continues with the analysis of the accumulated telemetry data, in terms of how well the spacecraft operated over the mission design life. However, the store-and-forward mission using direct sequence spread spectrum was never realized

Energy deposition during electron-induced dissociation

AbstractWe report studies of the internal energy deposited during activation of mass-selected ions through electron-ion collisions. Characteristic fragmentations of the molecular ion of limonene and W(CO)n+ (n = 1-6) indicate that electron-induced dissociation in a Fourier transform ion cyclotron resonance mass spectrometer proceeds via multiple collisions and that the average internal energy deposited during the activation process can be selected to be similar to that associated with electron-impact ionization. Control of the degree of ion excitation through selection of the electron energy, flux, and interaction time with the ions of interest is demonstrated, and advantages of this promising activation technique are discussed

The Potential for Student Performance Prediction in Small Cohorts with Minimal Available Attributes

The measurement of student performance during their progress through university study provides academic leadership with critical information on each student’s likelihood of success. Academics have traditionally used their interactions with individual students through class activities and interim assessments to identify those “at risk” of failure/withdrawal. However, modern university environments, offering easy on-line availability of course material, may see reduced lecture/tutorial attendance, making such identification more challenging. Modern data mining and machine learning techniques provide increasingly accurate predictions of student examination assessment marks, although these approaches have focussed upon large student populations and wide ranges of data attributes per student. However, many university modules comprise relatively small student cohorts, with institutional protocols limiting the student attributes available for analysis. It appears that very little research attention has been devoted to this area of analysis and prediction. We describe an experiment conducted on a final-year university module student cohort of 23, where individual student data are limited to lecture/tutorial attendance, virtual learning environment accesses and intermediate assessments. We found potential for predicting individual student interim and final assessment marks in small student cohorts with very limited attributes and that these predictions could be useful to support module leaders in identifying students potentially “at risk.”.Peer reviewe

Comptonia peregrina (L.) J.M. Coult.

https://thekeep.eiu.edu/herbarium_specimens_byname/21520/thumbnail.jp

Comptonia peregrina (L.) J.M. Coult.

https://thekeep.eiu.edu/herbarium_specimens_byname/21520/thumbnail.jp

Recycling of Deuterium From Dideuterated Glucose During Moderate Exercise

A doubly labelled tracer molecule of glucose, [6,6-2HJglucose, has been used to measure the rate of glucose appearance in blood due to endogenous glucose production (by the liver and kidneysj.l,2 Considered \u27non-recirculating\u27, this tracer generally provides a realistic estimate of glucose kinetics.2,3 Used as a dual tracer in conjunction with [l-13C]glucose, the extent of glucose recycling can be quantitated.2-4 but the extent of possible recirculation of a single deuterium atom on newly formed glucose must then be considered