Capacitance multiplier and filter synthesizing network

A circuit using a differential amplifier multiplies the capacitance of a discrete interating capacitor by (r sub 1 + R sub 2)/R sub 2, where R sub 1 and R sub 2 are values of discrete resistor coupling an input signal e sub 1 of the amplifier inputs. The output e sub 0 of the amplifier is fed back and added to the signal coupled by the resistor R sub 2 to the amplifier through a resistor of value R sub 1. A discrete resistor R sub x may be connected in series for a lag filter, and a discrete resistor may be connected in series with the capacitor for a lead-lag filter. Voltage dividing resistors R sub a and R sub b may be included in the feedback circuit of the amplifier output e sub o to independently adjust the circuit gain e sub i/e sub o

Equine Reproduction and Genetics

PDF pages: 4

Horse Nutrition

PDF pages: 3

A determination of the values of essentially non-verbal science experiences for the deaf child.

Thesis (M.A.)--Boston Universit

Suppression of Dewetting in Pulsed Laser Melting of Thin Metallic Films on Silica

Pulsed excimer laser projection irradiation has been successfully applied to completely melt and resolidify encapsulated elemental metal films of Au, Cu, Cr, and Ni directly on amorphous SiO2 substrates. A combination of narrow irradiated lines and appropriate SiO2 capping layers was used to obtain films that do not dewet when fully melted. Detailed processing maps were generated for Au and Ni, while equivalent trends for Cu and Cr were also noted. These systems were analyzed for common behaviors. These behaviors have been generalized into a basic process map that may apply more generally. Experimental parameters and sample preparation criteria are presented to realize such resolidification studies in other metal systems

Cholera revolts: a class struggle we may not like

Few have studied cholera revolts comparatively, and certainly not over the vast terrain from Asiatic Russia to Quebec or across time from the first European cholera wave of the 1830s to the twentieth century. Scholars have instead concentrated on the first European cholera wave in the 1830s and have tended to explain cholera’s social violence within the political contexts of individual nations, despite these riots raging across vast differences in political landscapes from Czarist Russia to New York City but with similar fears and conspiracy theories of elites inventing cholera to cull populations of the poor. Moreover, the history of cholera’s social toxins runs against present generalizations on why epidemics spawn blame and violence against others. Cholera riots continued, and in Italy and Russia became geographically more widespread, vicious, and destructive long after the disease had lost its mystery. The article then poses the question of why historians on the left have not studied the class struggles provoked by cholera, with riots of 10,000, murdering state officials and doctors, destroying hospitals, town halls, and in the case of Donetsk, an entire city. Finally, the article draws parallels between Europe’s cholera experiences and those in West Africa with Ebola in 2014

Integrated Inertial/gps

The presence of failures in navigation sensors can cause the determination of an erroneous aircraft state estimate, which includes position, attitude, and their derivatives. Aircraft flight control systems rely on sensor inputs to determine the aircraft state. In the case of integrated Inertial/NAVSTAR Global Positioning System (GPS), sensor failures could occur in the on-board inertial sensors or in the GPS measurements. The synergistic use of both GPS and the Inertial Navigation System (INS) allows for highly reliable fault detection and isolation of sensor failures. Integrated Inertial/GPS is a promising technology for the High Speed Civil Transport (HSCT) and the return and landing of a manned space vehicle

In Pursuit of Long-Term Care: Ensuring Access, Coverage, Quality

Looks at the current and future demand for long-term supportive, medical, personal, and social services for an aging baby boomer population. Provides recommendations for improving public and private financial support systems