A \u27User-Friendly\u27 Robot Operator Training Aid

There will be an increasing demand for robot operators, since more companies are using robots in production and material handling. In order to train these would-be operators, a \u27user-friendly\u27 robot operator training aid was developed. This aid helps the trainee learn how to program a robot using on-line programming, and the trainee also obtains valuable hands-on experience. Since this training aid is user-friendly and has safety features, it requires little or no previous experience with robots or computers and minimal supervision. With this training, the would-be operators will acquire a basic understanding of how they can apply this experience to the programming of large industrial robots. The RHINO XR-2 robot was used, including some of the peripheral equipment that can be easily interfaced with the RHINO. The system can control eight axes of motion. A controlling program was written in BASIC language for the Radio Shack Model III microcomputer. The computer\u27s keyboard was used to simulate a teach pendant, similar to those used with many industrial robots

Freedom of Marriage: An Analysis of Positive and Negative Rights

The institution of marriage is deeply embedded in modern society. Within the United States, legal recognition of marriage conveys both social dignity and material benefits to married individuals. As far back as 1967, the Supreme Court has treated freedom of marriage as a Constitutional right necessary to protect personhood rights such as liberty and autonomy. However, it did not fully extend this right to same-sex couples until its 2015 decision in Obergefell v. Hodges. Justice Scalia criticizes the majority opinion in Obergefell as lacking logic and precision, yet it reconciles jurisprudential discrepancies in prior case law addressing the right of marriage. These discrepancies are rooted in the contrasting negative and positive rights analytics of Immanuel Kant and Georg Willhelm Friedrich Hegel, respectively. Supreme Court precedent instituted a negative right to marriage in Loving v. Virginia, and a positive right to marriage in United States v. Windsor. These decisions are inconsistent under an exclusive negative or positive rights analysis. However, the Obergefell decision establishes Constitutional protection of same-sex marriage by acknowledging correlating positive and negative rights to marriage. This Note analyzes same-sex marriage under negative, positive, and correlating rights analytics. It concludes that the correlating rights analysis in Obergefell achieves optimal freedom by respecting and protecting the personhood rights of same-sex couples

Steady-state thermally annealed GaAs with room-temperature-implanted Si

Semi-insulating Cr-doped single-crystal GaAs samples were implanted at room temperature with 300-keV Si ions in the dose range of (0.17–2.0)×1015 cm–2 and were subsequently steady-state annealed at 900 and 950°C for 30 min in a H2 ambient with a Si3N4 coating. Differential Hall measurements showed that an upper threshold of about 2×1018/cm3 exists for the free-electron concentration. The as-implanted atomic-Si profile measured by SIMS follows the theoretical prediction, but is altered during annealing. The Cr distribution also changes, and a band of dislocation loops ~2–3 kÅ wide is revealed by cross-sectional TEM at a mean depth of Rp~3 kÅ. Incomplete electrical activation of the Si is shown to be the primary cause for the effect

Pulsed electron beam induced recrystallization and damage in GaAs

Single-pulse electron-beam irradiations of 300-keV 10^(15)Kr+/cm^2 or 300-keV 3×10^(12)Se+/cm^2 implanted layers in unencapsulated GaAs are studied as a function of the electron beam fluence. The electron beam pulse had a mean electron energy of ~-20 keV and a time duration of ~-10^(–7) s. Analyses by means of MeV He + channeling and TEM show the existence of narrow fluence window (0.4–0.7 J/cm^2) within which amorphous layers can be sucessfully recrystallized, presumably in the liquid phase regime. Too high a fluence produces extensive deep damage and loss of As

A Sterilizing Hopper

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