Cal Poly Table Top

Since many tables currently used at Cal Poly are not ideal for active design situations, we have designed, built and tested to be used in design classrooms with an emphasis on using the tables to quickly prototype ideas. This table is a standing height table in a trapezoidal shape which can comfortably seat four people. The modular design of the table allows multiple tables to be use to create different shapes so that the tables can be used in multiple ways

The Fiscal Impact of the U. S. Military Assistance Program, 1967-1976

The study of U.S. arms transfers and their impact on the fiscal decisions of aid recipients has been the subject of various interpretations and competing explanations. Absent in this literature has been a systematic testing of propositions derived from a general theory of aid impacts. A larger and somewhat related body of research has examined the political (Chaudhuri 1972; Hughes 1967; Gutteridge 1967) and general economic effects of domestic military spending (Deger and Smith 1983; Smith 1977, 1980; Benoit 1978; Kennedy 1974; Whynes 1979). These studies, however, have not examined the fiscal impact of foreign military assistance. To date only a few researchers have studied this issue in any systematic fashion (McGuire 1979, 1982; Wolf 1971). In this study we seek to fill this gap by applying grant economics theory (Pigou 1932; Oates 1972) to study the fiscal impact of U.S. military arms transfers on foreign nations. Drawing on the domestic aid literature (Oates 1972; Gramlich 1972), we identify a set of propositions concerning the expenditure decisions of domestic aid recipients, and test these propositions against the fiscal behavior of Military Assistance Program (MAP) recipients between 1967-1976. In addition to the substantive import of this question and its bearing on the implementation of U.S. foreign policy, this research provides a unique opportunity to test the applicability of domestic aid theory to the study of foreign aid policy

A Study of the Low Energy Octupole Resonance

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Roles of environmental cues for embryonic incubation and hatching in mudskippers.

Reproduction on mudflats requires that eggs are protected from different environmental challenges during development and hatch when environmental conditions are favorable for survival of juveniles. Mudskippers are air-breathing, amphibious gobies of the subfamily Oxudercinae, and one of a few vertebrates that reside on mudflats. They excavate burrows in mudflats and deposit eggs in them. However, these burrows are filled with extremely hypoxic water, in which eggs could not survive. To secure embryonic development within their burrows, the burrow-guarding parental fish (a male or mating pair) store fresh air in an egg chamber, located near the bottom or at mid-depth in a burrow, by transporting mouthfuls of air during each low tide. The Japanese mudskipper, Periophthalmus modestus, is the best-studied species regarding reproductive strategies. The air-supplying behavior appears to be predominantly governed by the oxygen levels within egg chambers, but also by some other factor that is possibly related to the tidal cycle. When embryonic development is complete, the burrow-guarding male P. modestus removes the air from the egg chamber and releases the air outside the burrow on a nocturnal rising tide. Consequently, the tide floods the egg chamber and induces hatching. Because P. modestus eggs only have a 5-6 day window for hatching competence, the male\u27s initial selection of the position for the burrow in the intertidal zone and the timing of spawning relative to the tidal cycle are both important factors in hatching success. This is particularly crucial for those burrows in higher intertidal zones, which may be reached only by spring high tides. Not much is known for other mudskippers, but it is likely that they also employ similar reproductive strategies. The objective of this review is to summarize available information on reproductive strategies of mudskippers, and to discuss future directions to better elucidate mechanisms and adaptive significance for the reproduction of mudskippers. Further comparative studies with both mudskippers and other oxudercine gobies dwelling mudflats could shed new light on how vertebrates solved problems of reproduction when they expanded habitats to environments in an air-water interface

Systems-theoretic Safety Assessment of Robotic Telesurgical Systems

Robotic telesurgical systems are one of the most complex medical cyber-physical systems on the market, and have been used in over 1.75 million procedures during the last decade. Despite significant improvements in design of robotic surgical systems through the years, there have been ongoing occurrences of safety incidents during procedures that negatively impact patients. This paper presents an approach for systems-theoretic safety assessment of robotic telesurgical systems using software-implemented fault-injection. We used a systemstheoretic hazard analysis technique (STPA) to identify the potential safety hazard scenarios and their contributing causes in RAVEN II robot, an open-source robotic surgical platform. We integrated the robot control software with a softwareimplemented fault-injection engine which measures the resilience of the system to the identified safety hazard scenarios by automatically inserting faults into different parts of the robot control software. Representative hazard scenarios from real robotic surgery incidents reported to the U.S. Food and Drug Administration (FDA) MAUDE database were used to demonstrate the feasibility of the proposed approach for safety-based design of robotic telesurgical systems.Comment: Revise based on reviewers feedback. To appear in the the International Conference on Computer Safety, Reliability, and Security (SAFECOMP) 201

An Explanation for the Bumps in (p,d), (d,t) and (3He,α) Spectra in Terms of One- and Two-Step Processes

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Development of an effective training machine using muscle activity information

In the field of providing safe and effective equipment for physical training appropriate adjustment of loading levels for the targeted users is very important. Most training machines to date offer only fixed and coarse load adjustment. This paper details an advanced leg muscle training machine that has an intelligent load control system. The load control is provided by monitoring the user\u27s muscular condition by means of a muscle stiffness sensor as well as pressure being exerted on the machine. The loading can then be adapted continuously to optimally suit the user\u27s needs. The prototype demonstrated that the proposed machine has excellent load control abilities providing effective and safe training using dynamic load control and automatic restriction of loading levels based on the user\u27s muscle contraction levels.IECON 2006 - 32nd Annual Conference on IEEE Industrial Electronics : Paris, France, 2006.11.6-2006.11.1

Pressure-induced structural phase transition and new superconducting phase in UTe2

We report on the crystal structure and electronic properties of the heavy fermion superconductor UTe2 at high pressure up to 11 GPa, as investigated by X-ray diffraction and electrical resistivity experiments. The X-ray diffraction measurements under high pressure using a synchrotron light source reveal anisotropic linear compressibility of the unit cell up to 3.5 GPa, while a pressure-induced structural phase transition is observed above 3.5-4GPa at room temperature, where the body-centered orthorhombic crystal structure with the space group Immm changes into a body-centered tetragonal structure with the space group I4/mmm. The molar volume drops abruptly at the critical pressure, while the distance between the first-nearest neighbor of U atoms increases, implying a switch from the heavy electronic states to the weakly correlated electronic states. Surprisingly, a new superconducting phase at pressures higher than 7 GPa was detected at Tsc above 2K with a relatively low upper-critical field, Hc2(0). The resistivity above 3.5GPa, thus, in the high-pressure tetragonal phase, shows a large drop below 230 K, which may also be related to a considerable change from the heavy electronic states to the weakly correlated electronic states.Comment: 11 pages, 9 figure

An Anti-Compton Gamma-Ray Spectrometer of Axial Type Using BGO Crystals

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