Application of passivators in transformer insulating mineral oils

Electrical insulating mineral oils are mainly manufactured from naphthenic crude sources, with a small number being produced from paraffinic crudes and gas-to-liquids technology. The resulting products are most frequently free of additives, except for certain types of phenol-based oxidation inhibitors, and of a very low percentage by weight, only up to 0.4 %. The main specifications for electrical insulating oils, Doble TOPS, ASTM D3487 and IEC 60296, only allow oxidation inhibitors and any other additives must be agreed upon by the entities involved in the selling and purchasing of the product. Over the years, other additives have been used, sometimes unbeknownst to the purchaser, some of which include pour point depressants, gassing tendency additives, other types of oxidation inhibitors, passivators and metal deactivators. This paper discusses the uses of passivators and how they work in transformer systems. Presently, passivators are being used to control issues with corrosive sulfur but they have also been used to control oxidation stability of the oil and streaming (static) electrification. This paper will focus mainly on the use of passivators to control corrosive sulfur

How Not to Get Lost While on a Random Walk

What happens if you go on a random walk? Will you ever return home? Well, sometimes yes (probably) and sometimes no (probably). During this talk we will derive some elementary identities in favor you\u27re not getting lost while on a random walk

How Not to Get Lost While on a Random Walk

What happens if you go on a random walk? Will you ever return home? Well, sometimes yes (probably) and sometimes no (probably). During this talk we will derive some elementary identities in favor you\u27re not getting lost while on a random walk

Establishing a Baseline in Water Quality for the North Fork Valley: Implications of Future Oil and Gas Drilling

In response to the increased use of hydraulic fracturing in the US the extraction of natural gas has drastically expanded in the last decade. This has sparked controversy surrounding the potential environmental impacts of this industry on groundwater and surface water quality. This honors thesis explores the potential sources for water contamination through a review of the existing literature. The findings suggest that water may become contaminated from stray gas migration, surface spills, wastewater treatment, and improperly sealed well casings. The fundamental problem surrounding this controversial issue is the lack of baseline water quality data. The second aspect of this thesis is to establish a water quality baseline for the North Fork Valley in Delta County, Colorado where there is proposed oil and gas drilling. My hypothesis is that the aquifers are not interacting with oil and gas bearing formations. I collected samples in September of 2014 following the protocol outlined by the Colorado Water and Energy Research Center (CWERC), and tested for 26 different analytes. These results were then compared to historical data collected in the area by the Colorado Oil and Gas Conservation Commission (COGCC), the Western Slope Conservation Center (WSCC), and a previous test done by one well owner. The baseline represents a summary of forty groundwater samples, eleven springs, and twenty-nine surface water samples

A placebo-controlled investigation of synaesthesia-like experiences under LSD

The induction of synaesthesia in non-synaesthetes has the potential to illuminate the mechanisms that contribute to the development of this condition and the shaping of its phenomenology. Previous research suggests that lysergic acid diethylamide (LSD) reliably induces synaesthesia-like experiences in non-synaesthetes. However, these studies suffer from a number of methodological limitations including lack of a placebo control and the absence of rigorous measures used to test established criteria for genuine synaesthesia. Here we report a pilot study that aimed to circumvent these limitations. We conducted a within-groups placebo-controlled investigation of the impact of LSD on colour experiences in response to standardized graphemes and sounds and the consistency and specificity of grapheme- and sound- colour associations. Participants reported more spontaneous synaesthesia-like experiences under LSD, relative to placebo, but did not differ across conditions in colour experiences in response to inducers, consistency of stimulus-colour associations, or in inducer specificity. Further analyses suggest that individual differences in a number of these effects were associated with the propensity to experience states of absorption in one’s daily life. Although preliminary, the present study suggests that LSD-induced synaesthesia-like experiences do not exhibit consistency or inducer-specificity and thus do not meet two widely established criteria for genuine synaesthesia

[Photograph 2012.201.B1279.0249]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Bayou Bend, in Houston

Children\u27s Freedom

True freedom is the ability to act, speak, and make all decisions without constraint or restriction by an outside power. As we think about this in the context of children, we will be examining how school systems, a standard part of modern-day childhood, restricts or limits the freedom that children have.https://digitalcommons.butler.edu/freedom-movement-fall-2021/1003/thumbnail.jp

Testing the moral algebra of two Kohlbergian informers

This paper seeks to unify two major theories of moral judgment: Kohlberg's stage theory and Anderson's moral information integration theory. Subjects were told about thoughts of actors in Kohlberg's classic altruistic Heinz dilemma and in a new egoistical dilemma. These actors's thoughts represented Kohlberg's stages I (Personal Risk) and IV (Societal Risk) and had three levels, High, Medium, and Low. They were presented singly and in a 3 x 3 integration design. Subjects judged how many months of prison the actor deserved. The data supported the averaging model of moral integration theory, whereas Kohlberg's theory has no way to handle the integration problem. Following this, subjects ranked statements related to Kohlberg's first four stages in a procedure similar to that of Rest (1975). Higher score went with larger effect of Societal Risk as predicted by Kohlberg's theory. But contrary to Kohlberg's theory, no age trends were found. Also strongly contrary to Kohlberg's theory, effects of Personal Risk (Stage I) and Societal Risk (Stage IV) correlated positively