408 research outputs found
Crew Resource Management for Large Unmanned Aircraft Systems Operations
No full textAbstract
The author explored the application of crew resource management (CRM) principles to commercial flight operations conducted by large unmanned aircraft systems (UAS). Currently, there is no regulatory structure governing the operation of large UAS in commercial flight operations. However, the National Aeronautics and Space Administration (NASA) forecasted the future by demonstrating the feasibility of large remotely piloted UAS flight in June 2018 by flying Ikhana, a modified MQ-9 Predator B aircraft, over a 415-mile route in Class A and in Class E airspace over southern California (Kooser, 2018). Ikhana is a 10,500-pound aircraft with a wingspan of 66 feet capable of climbing to 40,000 feet. In order to establish the viability of CRM as an element of a safety management system to mitigate human factors errors, the research used a cross-case analysis by Neff (2016) of four large UAS accidents to derive a ranked list of the eight most prevalent hard-skill and soft-skill human errors identified as causal to the accidents. An additional study of five Indian Air Force UAS accidents by Sharma and Chakravarti (2005) was referenced and listed eight primarily soft-skill human factors contributing factors. The author applied a CRM teamwork centered template using communications and workload management inputs and situational awareness and threat and error management outputs to analyze and propose mitigations to the contributing human factors errors. The author concluded that a safety management system incorporating CRM principles and supported by appropriate leadership philosophy, policies, procedures, and best practices is an essential element to combat human factors errors and facilitate safe integration of large commercial UAS flight operations into joint use national airspace
Changes of the author type in Arcadian cycle by Ondřej Neff
No full textTato práce se zabývá dílem spisovatele Ondřeje Neffa se zaměřením na jeho tzv. Arkadský cyklus, tedy cyklus próz odehrávající se v budoucnosti především ve městě Arkádie na Luně. Práce se snaží na tomto cyklu ukázat základní prvky literárního projevu autora a zmapovat jeho literární vývoj a posun.This thesis deals with the work of an author Ondřej Neff focusing on his so called Arcadian cycle, in other words SF cycle of prose taking place in the future of our humankind, especially in "habitat" Arcadia on Luna. This thesis tries to show the basic elements of author's literature and map his literal progress and movement of dependence on his creative period.Katedra historických vědDokončená práce s úspěšnou obhajobo
Capabilities of automated LA-ICP-TOFMS imaging of geological samples
No full textElement imaging aims to provide quantitative data on multi-element distributions from major to trace elements with high lateral resolution. Here, we describe a control system for laser ablation inductively coupled plasma time-of-flight mass spectrometry (LA-ICP-TOFMS) imaging with complex integration of translational stage, laser, and mass spectrometer data acquisition which was tested on glass and mineral samples. In particular, besides single pulse imaging at a laser repetition rate of 100 Hz using a 5 μm laser spot size, a hole drilling imaging approach provided higher pixel sensitivity and lower limits of detection (<1 mg kg−1 for most heavy elements) while maintaining the same lateral resolution. An optional surface cleaning pulse can be applied without additional recording of data. Furthermore, the ablation area can be adapted to specific object structures of interest and leads to significant shorter imaging times. Triggering the data acquisition for every ablation position led to binned pixel data in relation to the sample position. This simplifies the data evaluation and allows a more automated image generation. The approach presented in this study enables flexible adjustments of distinct ablation modes to a specific analytical task and provides the basis for fully automated element imaging. To test the applicability of our approach, two complex geological samples containing crystalline solids were imaged to gain insights into the distribution of trace elements that occur typically in the low mg kg−1 range. We show that both single pulse and hole drilling ablation modes allow the determination of a large number of trace elements. However, the hole drilling mode shows a superior sensitivity per pixel, which in turn provides more detailed information about the formation of geological samples
Failed genesis of a Fe-skarn deposit caused by redox states of intrusion and wall rocks (Torre di Rio, Island of Elba, Italy)
No full textThe Torre di Rio skarn (Island of Elba, Italy) is a pyroxene-ilvaite-epidote skarn that hosts a Fe-oxide mineralization and is the type locality of the mineral ilvaite. In contrast with other Fe deposits of the island, it belongs to a group of subeconomic skarns. We combine surface mapping, petrographic data, scanning electron microscope and electron probe microanalyses, fluid inclusion microthermometry, elemental imaging by Laser Ablation-Inductively Coupled Plasma - Time of Flight Mass Spectrometry (LA-ICP-TOFMS), and fluid-mineral equilibria to compare the genesis of this skarn with that of typical economic skarns.
Fieldwork shows that Torre di Rio consist of ilvaite-, ilvaite-pyroxene, and pyroxene-epidote zones. The epidote-rich zone is in contact with the wall rocks, i.e., a sequence of pelites, marls, marbles, and other sedimentary lithologies. The 6.53-5.9 Ma Porto Azzurro monzogranite is the reduced (ilmenite-bearing) causative intrusion of the skarn, which induced contact metamorphism in the wall rocks at 6.7-6.2 Ma. Torre di Rio formed within the biotite-white mica-chlorite metamorphic zone, a few hundred meters from the contact with Porto Azzurro.
Within the skarn, ilvaite and pyroxenes are both euhedral and arranged in rosettes and spheroids. Ilvaite has a consistent chemical composition with a significant Mn enrichment close to the wall rocks, and pyroxene is hedenbergitic. The epidote is euhedral and occurs as epidote s.s. and allanite-(Ce). Late phases are albite, annite, phengite, chlorite, quartz, calcite, and chalcedony. Magnetite and hematite form spheroid textures or are finely mixed. Euhedral pyrrhotite and pyrite host native Bi and Pb.
Seventeen calcite- and quartz-hosted fluid inclusion assemblages from the ilvaite skarn zones are associated with the magnetite and hematite aggregates. At room temperature, all assemblages are two-phase (L-V). Fourteen of them show constant phase proportions and three show variable proportions. The assemblages with constant phase proportions have salinities between 0.8 and 17.0 mass% NaCleq and homogenize by bubble disappearance between c. 150 and 300 °C. The assemblages with variable phase proportions homogenize by bubble and liquid disappearance between 280 and 330 °C.
Element imaging by LA-ICP-TOFMS of ilvaite and quartz from skarn spheroids shows that several lithophile (e.g., Al, Mg) and siderophile (e.g., As, Ge, Ga, In, Sb) trace elements occur at concentrations between c. 20 microg/g and 1 wt%.
We interpret our dataset as a product of a shallow skarn that formed under extremely reducing conditions, which were controlled by the redox nature of both Porto Azzurro and wall rocks. At these conditions, supersaturation of pyroxenes and ilvaite within the skarn was achieved as a result of phase separation, cooling, and mixing of batches of heterogeneous and homogeneous ore fluids at about 350-150 °C. A Fe-skarn deposit failed to form at Torre di Rio because the supersaturation of Fe-oxides from the ore fluid was inhibited, but the presence of the typical siderophile elements of geothermal-epithermal deposits indicate that the ore environment was transitional between skarn and epithermal. Similar conditions are found in other deposits of the Island of Elba and of the Northern Apennine belt
The life of Pat Neff
No full textTexas has had a number of colorful and unique personalities to serve in the capacity of governor, and each has contributed to the state. From the first governor after the annexation of Texas in 1846, J. Pinckney Henderson, until the present governor, Allan Shivers, Texas has never had repetition in personality, nor in policy. In between the first and present governor, Texas has had such contrasting figures as Sam Houston and Edmund J. Davis, James S. Hogg and S. W. T. Lanham, and James E. Ferguson and Baeauford Jester, To get a thorough understanding of the state necessitates an Introduction to the executives who have served both adequately and inadequately. In this thesis the Author has attempted to introduce some of the unpublished facts about one of Texas's most vivid leaders, Pat Morris Neff. The first chapter attempts to unfold a complete picture of Pat Neff's lineage, environment and early life. This introduction is vitally important for a complete understanding of Neff's philosophies and policies. The second chapter reveals the forming of Neff's political career. [...]History, Department o
Bruggeman, Albert (Death, 1893-10-19)
No full textAddress: 2 Neff AvenueAge at death: 5 Yrs 11 Mos.293/Pg 100/1893/M W S/Cinti, Ohio/Dr. J. Langenbeck/Peter Rebold/St. Joseph OldOriginal record filed in drawer labeled 'BROWN,G.-BRUN'
Vickroy, Carolina (Death, 1905-12-24)
No full textAddress: 78 Neff AvenueAge at death: 11 months429/Pg.134/1905/F W S/City/Dr. J.H. Wilms/Peter Rebold & Sons/St. Joseph NewOriginal record filed in drawer labeled 'VARNEY-VOESTER'
Alaska Justice Forum ; Vol. 2, No. 1 (January 1978)
No full textThe January 1978 issue of the Alaska Justice Forum opens with a findings of an Alaska Judicial Council study on domestic violence and the Council's proposal to establish a citizen dispute center in Anchorage for the resolution of domestic disputes where injured parties are unwilling to press criminal charges. Other articles describe an experimental diversion program in Ketchikan for juvenile status offenders intended to minimize the entry of youth into the criminal justice system; a pilot project of the Alaska Judicial Council to involve and inform citizens about the criminal justice system; and the first of a six-part series designed to provide a working knowledge of the basic issues surrounding interrogation and confessions. Also included is a justice training calendar.Grant 77-A-006 of the Governor's Commission on the Administration of Justice, State of Alaska"Dispute Center Will Be New Approach To Violence" by Alaska Judicial Council /
"Ketchikan Youth Advocate Program Offers Fast Assistance" by Ben L. Neff and Phyllis Bardonski /
"Citizens Action Project Looks at Alaska Justice System" by Arlene Warden /
"Interrogations And Confessions: Everything You've Always Wanted to Ask" (part 1) by Peter S. Ring /
"Justice Training Calendar
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Positive perfectionism, a wolf in sheep's clothing : considerations for school counselors working with adolescents
No full texttextThis paper reviews the concept of positive perfectionism as a misnomer that negatively impacts adolescent students. The author acknowledges that the majority of research relative to perfectionism points to a multidimensional orientation of this construct. Often multidimensionality has been used to indicate that perfectionism has both positive and negative applications for individuals (DiBartolo, Li, & Frost, 2008). Primarily a deleterious construct, perfectionism has been strongly associated with psychopathology. The author would like to offer perfectionism as a multidimensional construct that is ultimately maladaptive and harmful. Additionally, the author recommends replacing the term positive perfectionism with the more accurate concept of striving for excellence. This literature review is intended to offer educators, specifically school counselors, insight toward identifying and helping adolescents struggling with perfectionism and well-being.Educational Psycholog
The use of mediation to resolve environmental disputes in South Africa and Switzerland
No full textThe minor dissertation is structured as follows: After a short overview about mediation as one mechanism to resolve environmental disputes and the advantages respectively disadvantages of this kind of alternative dispute resolution, the focus shifts in paragraph C to the use of mediation to resolve environmental disputes in Switzerland. On the basis 4 of several cases in which mediation or mediation-type activities were used to resolve the environmental conflict I want to show why, in the end, environmental mediation probably will never be so widespread in Switzerland as it is in other countries. The paragraph ends with a case study about mediation experiences in Switzerland over nuclear waste disposal. Nevertheless, this aforementioned case study shows that the Swiss decision-making system offers a good basis for mediation procedures in areas of politics where there is yet little participation as longs as certain preconditions for a successful procedure are fulfilled. In paragraph D I deal with the use of mediation in South Africa to resolve environmental disputes. The focus shifts in a first step on the National Environmental Management Act (NEMA), especially Chapter 4 NEMA which deals with Alternative Dispute Resolution and, in particular, with environmental mediation. In a next step I examine if this Chapter has been already implemented or if there is still a big gap between theory and practice. Finally, paragraph D ends with two South African cases in which mediation was involved to resolve the dispute and a comparison of the two procedures
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