Multipurpose Glider-Quadcopter UAS

The goal for this design was to develop a dual stage UAS that will deliver medical supplies to people in need in remote locations. To accomplish this, a quadcopter was designed to release a glider with the payload therein. A scaled down prototype was produced for analysis purposes. A conceptual model was fully designed that is capable of effectively taking off vertically, accelerating to a desired velocity, releasing the glider, and returning back to the initial takeoff location. The glider was designed to be fully controllable in order to accurately reach the desired location. System aerodynamics and quadcopter propulsion were thoroughly studied throughout the design process in order to optimize range. Computational fluid dynamics, finite element analysis, and extensive hand calculations were completed on both component geometries and propulsion systems in order to verify final system effectiveness. It was determined that the range requirement of 10 miles for the entire system could be accomplished with a maximum velocity of 128 mph

The LPGPU2 Project: Low-Power Parallel Computing on GPUs : Extended Abstract

The LPGPU2 project is a 30-month-project (Innovation Action) funded by the European Union. Its overall goal is to develop an analysis and visualization framework that enables GPU application developers to improve the performance and power consumption of their applications. To achieve this overall goal, several key objectives need to be achieved. First, several applications (use cases) need to be developed for or ported to low-power GPUs. Thereafter, these applications need to be optimized using the tooling framework. In addition, power measurement devices and power models need to be developed that are 10x more accurate than the state of the art. The project consortium actively promotes open vendor-neutral standards via the Khronos group. This paper briefly reports on the achievements made in the first half of the project, and focuses on the progress made in applications; in power measurement, estimation, and modelling; and in the analysis and visualization tool suite.EC/H2020/688759/EU/Low-Power Parallel Computing on GPUs 2/LPGPU

Enabling GPU software developers to optimize their applications – The LPGPU2approach

Low-power GPUs have become ubiquitous, they can be found in domains ranging from wearable and mobile computing to automotive systems. With this ubiquity has come a wider range of applications exploiting low-power GPUs, placing ever increasing demands on the expected performance and power efficiency of the devices. The LPGPU 2 project is an EU-funded, Innovation Action, 30-month-project targeting to develop an analysis and visualization framework that enables GPU application developers to improve the performance and power consumption of their applications. To this end, the project follows a holistic approach. First, several applications (use cases) are being developed for or ported to low-power GPUs. These applications will be optimized using the tooling framework in the last phase of the project. In addition, power measurement devices and power models are devised that are 10× more accurate than the state of the art. The ultimate goal of the project is to promote open vendor-neutral standards via the Khronos group. This paper briefly reports on the achievements made in the first phase of the project (till month 18) and focuses on the progress made in applications; in power measurement, estimation, and modelling; and in the analysis and visualization tool suite.EC/H2020/688759/EU/Low-Power Parallel Computing on GPUs 2/LPGPU

Bringing Sexy Back: Unauthorized Film Editing, Copyright, and How Removing Reproductive Acts Violates Reproduction Rights

The Multicolored Asian Ladybird, Harmonia axyridis, is an extremely successful invasive species. Here we suggest that, in addition to many other traits, the dorsal spines of its larvae contribute to their success, as suggested by behavioral observations of agonistic interactions between H. axyridis and European coccinellids. In coccinellids, the role of dorsal spines in these interactions has been poorly studied and they could be a physical protection against intraguild predators. Dorsal spines of second instar H. axyridis larvae were removed with micro-scissors, which resulted in spineless larvae after molting (spineless group). These larvae were then exposed to starved Coccinella septempunctata larvae. Two control categories were also submitted to interactions: H. axyridis larvae with all their spines (control group) and with their spines, but injured by pin stings (injured group). Spine removal at the second instar did not hamper H. axyridis development. The bite rate by C. septempunctata was significantly higher on the spineless H. axyridis and more dorsally located compared to the control and injured groups, while no bite rate difference was observed between the injured and the control group. Our results suggest that in addition to behavioral and chemical defenses, the dorsal spines play a significant protective role against bites. Therefore, spines in ladybirds could be considered as a morphological defense against intraguild predation. In H. axyridis, these defenses might contribute to its success in food resources already exploited by other guild members and thus further facilitate the invasion of new areas.SCOPUS: ar.jinfo:eu-repo/semantics/publishe

The Vehicle, Spring 2005

Table of Contents The Remnants of YouKaty Dwigginspage 5 Sunrise, Early Spring, with CigaretteMario Podeschipage 6-7 I\u27m Not the Butterfly, I\u27m the KnifeAllison Staulcuppage 8 AcceptanceHeather Lucaspage 9 WordsKaty Dwigginspage 10 Thank YouA.T. Shootpage 11 72 Beats ofA.T. Shootpage 12 I Think We Hang Out Too MuchAllison Staulcuppage 13 StorageA.T. Shootpage 14 Plum PerfectKaty Dwigginspage 15 Last MinuteMeghan Moralespage 16 Last Monday\u27s SummersaultKelly Richardspage 17 A Peaceful MomentStaci Lucepage 18-19 The SaviorKaty Dwigginspage 20 IslandsDanielle Hookepage 21 My Nalgene: A SonnetJesse Wygonikpage 22 Unwanted ChildKaty Dwigginspage 23 My Pain or YoursAllison Staulcuppage 24 TimmyKelly Richardspage 25-30https://thekeep.eiu.edu/vehicle/1083/thumbnail.jp

The Vehicle, Spring 2005

Table of Contents The Remnants of YouKaty Dwigginspage 5 Sunrise, Early Spring, with CigaretteMario Podeschipage 6-7 I\u27m Not the Butterfly, I\u27m the KnifeAllison Staulcuppage 8 AcceptanceHeather Lucaspage 9 WordsKaty Dwigginspage 10 Thank YouA.T. Shootpage 11 72 Beats ofA.T. Shootpage 12 I Think We Hang Out Too MuchAllison Staulcuppage 13 StorageA.T. Shootpage 14 Plum PerfectKaty Dwigginspage 15 Last MinuteMeghan Moralespage 16 Last Monday\u27s SummersaultKelly Richardspage 17 A Peaceful MomentStaci Lucepage 18-19 The SaviorKaty Dwigginspage 20 IslandsDanielle Hookepage 21 My Nalgene: A SonnetJesse Wygonikpage 22 Unwanted ChildKaty Dwigginspage 23 My Pain or YoursAllison Staulcuppage 24 TimmyKelly Richardspage 25-30https://thekeep.eiu.edu/vehicle/1083/thumbnail.jp

CO observations of symbiotic stellar systems

We have performed mm-wave observations with the IRAM 30m telescope of the 12CO J=2-1 and J=1-0, 13CO J=2-1 and J=1-0, and SiO J=5-4 transitions in the symbiotic stars R Aqr, CH Cyg, and HM Sge. The data were analyzed by means of a simple analytical description of the general properties of molecular emission from the inner shells around the cool star. Numerical calculations of the expected line profiles, taking into account the level population and radiative transfer under such conditions, were also performed. Weak emission of 12CO J=2-1 and J=1-0 was detected in R Aqr and CH Cyg; a good line profile of 12CO J=2-1 in R Aqr was obtained. The intensities and profile shapes of the detected lines are compatible with emission coming from a very small shell around the Mira-type star, with a radius comparable to or slightly smaller than the distance to the hot dwarf companion, 10$^{14}$ - 2 10$^{14}$ cm. We argue that other possible explanations are improbable. This region probably shows properties similar to those characteristic of the inner shells around standard AGB stars: outwards expansion at about 5 - 25 km/s, with a significant acceleration of the gas, temperatures decreasing with radius between about 1000 and 500 K, and densities ~ 10$^9$ - 3 10$^8$ cm$^{-3}$. Our model calculations are able to explain the asymmetric line shape observed in 12CO J=2-1 from R Aqr, in which the relatively weaker red part of the profile would result from selfabsorption by the outer layers (in the presence of a velocity increase and a temperature decrease with radius). The mass-loss rates are somewhat larger than in standard AGB stars, as often happens for symbiotic systems. In R Aqr, we find that the total mass of the CO emitting region is ~ 2 - 3 10$^{-5}$ Mo, corresponding to M' ~ 5 10$^{-6}$ - 10$^{-5}$ Mo/yr, and compatible with results obtained from dust emission. Taking into account other existing data on molecular emission, we suggest that the small extent of the molecule-rich gas in symbiotic systems is mainly due to molecule photodissociation by the radiation of the hot dwarf star.Comment: 11 pages, 4 figure

Betylmania? - Small Standing Stones and the Megaliths of South-West Britain

This paper calls attention to a previously neglected element of thebroad repertoire of monumental megalithic structures that characterize thelater third and second millennia BC across the British Isles – extremely smallstanding stones. Despite their frequency and the complex arrangements andassociations they embody, these miniliths are rarely recorded in detail andfrequently marginalized to a generic background. As a result, they are largelyabsent from interpretative accounts. Drawing upon recent debates regardingmateriality and monument form, alongside the results of excavations explicitlytargeting tiny stone settings, the discussion argues that the phenomenon ofraising and fixing small uprights was not only widespread and persistent, butsheds important light upon the beliefs and ideas driving monumentconstruction during the later Neolithic and Bronze Age

Compensatory Growth Impairs Adult Cognitive Performance

Several studies have demonstrated that poor early nutrition, followed by growth compensation, can have negative consequences later in life. However, it remains unclear whether this is attributable to the nutritional deficit itself or a cost of compensatory growth. This distinction is important to our understanding both of the proximate and ultimate factors that shape growth trajectories and of how best to manage growth in our own and other species following low birth weight. We reared sibling pairs of zebra finches on different quality nutrition for the first 20 d of life only and examined their learning performance in adulthood. Final body size was not affected. However, the speed of learning a simple task in adulthood, which involved associating a screen colour with the presence of a food reward, was negatively related to the amount of growth compensation that had occurred. Learning speed was not related to the early diet itself or the amount of early growth depression. These results show that the level of compensatory growth that occurs following a period of poor nutrition is associated with long-term negative consequences for cognitive function and suggest that a growth-performance trade-off may determine optimal growth trajectories

Linear polarization of submillimetre masers. Tracing magnetic fields with ALMA

(Abridged) The goal of this work is to investigate if SiO, H2O and HCN maser emission within the ALMA frequency range can be detected with observable levels of fractional linear polarization in the regime where the Zeeman frequency (gOmega) is greater than the stimulated emission rate (R) and the decay rate of the molecular state (Gamma). We have used a radiative transfer code to calculate the fractional linear polarization as a function of the emerging brightness temperature for a number of rotational transition of SiO, H2O and HCN which have been observed to display maser emission at submillimetre wavelengths. We assume typical magnetic field strengths measured towards galactic star forming regions and circumstellar envelopes of late-type stars from previous VLBI observations. Since the Land\'e g-factors have not been reported for the different rotational transitions we have modeled, we performed our calculations assuming conservative values of the Zeeman frequency for the different molecular species. Setting a lower limit for the Zeeman frequency which still satisfies the criteria gOmega>R and gOmega>Gamma, we find fractional polarization levels of up to 13%, 14% and 19% for the higher J transitions analysed for SiO, H2O and HCN, respectively, without considering anisotropic pumping or any other non-Zeeman effect. Such upper limits were calculated assuming a magnetic field oriented perpendicular to the direction of propagation of the maser radiation. According to our results SiO, H2O and HCN maser emission within the ALMA frequency range can be detected with suitable linear polarization to trace the magnetic field structure towards star forming regions and late-type stars, even if the detected polarization has been enhanced by non-Zeeman effects.Comment: 9 pages, 5 figures. Accepted for publication in Astronomy and Astrophysic