Redundant Flight Control System for BVLOS UAV Operations

The Redundant Flight Computer (RFC) project focuses on enhancing the reliability and safety of small Unmanned Aircraft Systems (sUAS) by creating a redundant flight control system. The proposed system would serve as a “back-up” to the primary flight computer in the case of an in-flight loss of communications or control. The RFC project is part of a NASA-supported research initiative to enhance the safety of sUAS flying in the national airspace system, and allow the FAA to reconsider beyond visual line of site (BVLOS) sUAS operations. A secondary goal of this project will be the development of an efficient and low cost variable-speed for propeller for sUAS integration. The use of variable pitch propellers in larger aircraft has proven to be an effective tool for increasing endurance, range and efficiency. Ground testing and flight testing the RFC will verify systems reliability, and also the simulation of hardware and software failures to test the system’s resiliency to failures. It will also test telemetry feedback to the operators when notifying the operator of a failure, and also verify efficiency gains with the Pixhawk-controlled variable-pitch propulsion system. Our current results have proven we can use the backup Pixhawk to take over from the primary Pixhawk via a kill-switch controlled by the backup Pixhawk during ground testing. Currently the test airframe is being built and flight testing is slated for October 31st to prove the system works in flight

Passive Mitigation of Norovirus through Bathroom Design Optimization

Plan B Project Paper for the master's program in Food Science and Nutrition.Norovirus is a persistent and tenacious virus that causes a short-lived and seldom-lethal food-borne infection most commonly associated with vomiting, nausea, diarrhea, fever, and, if persistent, dehydration. In food service establishments, employees become vectors for outbreaks when working while ill or recently recovered. Better bathroom design can reduce the probability of an outbreak, without changing human behavior in them. This is a background research paper that provides speculative analysis on how improved bathroom design can supplement hygiene training, sick time off, and chemical sanitizers in the fight against the most common of all food-borne infections: Norovirus. Outbreaks are often caused by a series of missteps, bad luck, or poor planning when caused at restaurants and the damage can be severe in what is already one of the most cutthroat and competitive industries in the United States. To be associated with an outbreak is potentially damaging to reputations of establishments and taking precautions, including those suggested in my paper, will take some of the contributing factors to any illness outbreak out reducing the chances of the outbreak occurring. They may still occur, but better bathroom design and other precautions can reduce the scale and/or frequency potentially saving human suffering and economic damage to the companies that would otherwise have done nothing preventative

Comparison of GTR, T-PRF and open-flap debridement in the treatment of intrabony defects with endo-perio lesions : a randomized controlled trial

Titanium- prepared platelet rich fibrin (T-PRF) is an autologous hemo-component with a high concentration of platelets that also incorporates leukocytes, and growth factors into the dense fibrin matrix and can be used as a healing biomaterial. This study assesses the adjunctive use of T-PRF in intrabony defects (IBDs) with open flap debridement (OFD) in comparison with guided tissue regeneration (GTR) as a gold standard and OFD alone as a control. A total of 45 patients (15 per group) were randomized as either T-PRF (test group), GTR (test group), or OFD alone (control group) sites. Probing depth (PD), clinical attachment level (CAL), and IBD were recorded. The radiographic depth of IBD was also measured. Primary outcomes assessed were changes in PD, CAL, and radiographic IBD that were assessed at the beginning and nine months later.  The PRF and GTR group showed significant improvement in clinical parameters compared with the OFD alone (control group) at nine months. While there were no significant differences in PD and CAL between test groups (T-PRF and GTR groups), the significant difference was found in radiographic IBD depth. T-PRF may give similar successful results as GTR in the treatment of IBDs with endo-perio lesions

Нові явища у функціонально-стилістичному вживанні протиставних сполучників в українській літературній мові кінця ХХ — початку ХХІ століть

У статті досліджено зміни у функціонуванні найуживаніших протиставних сполучників у мові української преси та художньої літератури кінця ХХ — почат ку ХХІ століть, обґрунтовано слабку семантико-синтаксичну спеціалізацію протиставних сполучників та визначено їхні транспозиційні можливості.In the article the changes in the functioning of the most used adversative conjunctions in the language of Ukrainian press and artistic literature of the end of the XX — the beginning of the XXI centuries have been investigated, weak semantic-syntactic specialization of adversative conjunctions has been explained and their transisting resources have been determined

The role of information technology applications represented by electronic payment and distribution services in improving the quality of banking performance: a field study on a sample of Iraqi banks

This study aimed to identify the concept of information technology in general and to indicate the extent of its impact on improving banking performance and the quality of banking service by saving time and effort and reducing the cost of completing the work by obtaining the required outputs from the various inputs. The questionnaire was used as a method for collecting data for the opinions of a sample. Of the employees of the surveyed banks, by distributing (87) a questionnaire to a sample of customers and employees of Al-Rafidain and Al-Rashid Bank operating in the province of Babylon, the data were analyzed using the statistical program (SPSS v.25.). The research has reached a set of conclusions, the most important of which is that the use of technology in the banking business has become an urgent necessity, which requires equipment, development, and training to raise the level of services provided » There is also a statistically significant relationship between the use of information technology (electronic payment methods and distribution channels electronic) and improve banking performance. The study recommends that it is necessary to pay attention to information technology and its continuous development for its effective contribution to the success of banking services. This study is considered important for the management of banks and decision- makers by shedding light on information technology and showing its impact on enhancing banking service, which in turn is reflected in increasing customer loyalty towards the bank

Investigation of water sorption and aluminum releases from high viscosity and resin modified glass ionomer

High viscosity glass ionomer cement (HVGIC) and resin-modified glass ionomer cement (RMGIC) have recently been clinically preferred thanks to their numerous advantages. However, initial moisture contamination has a negative effect on the mechanical and physical properties of these cements. The aim of this study was in vitro of HVGICs and RMGICs, with and without surface protection, on water sorption, solubility and release of aluminum. In this study, as HVGICs; Equia Forte, IonoStar Plus, Riva Self Cure; as RMCIS, Ionolux and Riva Light Cure; and as control, Z250 universal composite was used. Equia coat, Voco varnish and Riva coat were chosen as surface protective. Water sorption and solubility levels of the samples were measured according to ISO 4049:2009. Al levels released from samples were determined by graphite furnace atomic absorption spectroscopy (GFAAS) for 7, 14 and 21 days. Statistical evaluation of the results was made using one-way variance analysis (ANOVA) and Tukey post-hoc test (p<0.05). RMGICs from restorative materials showed more water absorption than HVGICs, but no differences in solubility. Among the materials tested, the water absorption values of the HVGIC and RMGIC materials without surface protection were higher than those with the surface protection (p<0.001). It was determined that the Al release of HVGIC and RMGIC groups with the surface protection were lower in all time periods than the groups without surface protection (p<0.001). The application of surface protection effectively reduced water sorption and Al release from HVGICs and RMGICs