Eclipse radius measurements

Methods for predicting the path edges and reducing observations of total solar eclipses for determining variations of the solar radius are described. Analyzed observations of the 1925 January eclipse show a 0.7 (arc second) decrease in the solar radius during the past fifty years

Mathematical specifications of the Onboard Navigation Package (ONPAC) simulator (revision 1)

The mathematical theory of the computational algorithms employed in the onboard navigation package system is described. This system, which simulates an onboard navigation processor, was developed to aid in the design and evaluation of onboard navigation software. The mathematical formulations presented include the factorized UDU(T) form of the extended Kalman filter, the equations of motion of the user satellite, the user clock equations, the observation equations and their partial derivatives, the coodinate transformations, and the matrix decomposition algorithms

Alien Registration- Dunham, Roy A. (Presque Isle, Aroostook County)

https://digitalmaine.com/alien_docs/33865/thumbnail.jp

Culture and Gender : A Look at Japan and New Zealand

American society at large has, in turn, taken hold of a ""feminism"" that assumes American cultural superiority, using the terms of feminist critique to assert the backwardness, the unworthiness, and the hopelessness of the non-white world. (Juliette Guilbert, 1998,p. 12

Alien Registration- Dunham, Maria A. (Portland, Cumberland County)

https://digitalmaine.com/alien_docs/21770/thumbnail.jp

Populations in a fluctuating environment: the comparative population ecology of the iguanid lizards Sceloporus merriami and Urosaurus ornatus

http://deepblue.lib.umich.edu/bitstream/2027.42/56402/1/MP158.pd

Inspiring a Ripple: A Case for Evidence-Based, Biophilic Design for Affordable Housing

ABSTRACT RELEVANCE Currently in the US, 4 million families in need of affordable housing are not housed in affordable units and are spending 30-50% of their monthly income toward rent (Aurand, 2023.) Due to this shortage of affordable housing and the trajectory of its growth, advocacy groups and policy makers are making a push to fund more affordable housing projects. What if the designs of these projects were informed in such a way that individual and community mental health and wellness could be addressed in addition to meeting the demand for affordable, safe shelter? In this way, the return on investment for the funding of these projects would be significantly increased, in the form of the ripple effects caused by increased community well-being. ISSUE/PROBLEM Government standards for affordable housing projects (and thus, funding initiatives) focus solely on the economics of the building and the physical health and safety of residents (HUD.gov, 2023.) Given the growing body of evidence pointing toward the mental health and well-being benefits of biophilic design, this project makes a call to action to amend current HUD building standards to include biophilic design characteristics so that mental health and well-being are also addressed by tax-payer funded building projects. CONTEXT Evidence-based design practices within the healthcare and workplace industries have made significant strides in the last few decades, developing and implementing strategies for successfully bridging research and design practices. (Hamilton, 2009) This has resulted in better informed design decisions that positively affect the health of patients and staff (healthcare) and increased productivity and retention (workplace.) With the general goal of an overall increase in community mental health and wellbeing, to what extent could similar evidence-based design efforts be applied within the affordable housing design industry? And what specific benefits could residents and communities realize as a result of this implementation? METHODS OF INVESTIGATION Using relevant existing research, precedents of “social housing” projects in Austria, interviews with current residents of affordable housing projects, and interviews with affordable housing designers Kia Weatherspoon & Sarah McInerney, this project will identify and define specific biophilic design methods in the context of affordable housing design which are particularly likely to have a significant beneficial impact on the overall mental health and well-being of residents, and thus surrounding communities. OUTCOMES Research around the impact of home environments on its residents indicates that the built environment has a significant impact on overall mental health and well-being (Amerio, 2020.) Analysis and reviews of research in the areas of environmental psychology, restorative environments, and evidence-based design applied in various building types consistently indicate the principles of biophilic design as an effective framework for making design decisions in the built environment (Hamilton, 2009, Peters, 2021.) Biophilic Design principles include design characteristics that promote the human-nature relationship via exposure to nature itself, natural light, views of nature, and nature imagery/natural patterns. ENGAGEMENT Specified, evidence-based, biophilic design methods will inform specific suggestions for additions to the current HUD requirements for affordable housing building projects. Additionally, set within the context of a Mid-Atlantic City of 250,000, a proposal of an affordable housing/adaptive reuse design project will demonstrate a prototype of the identified evidence-based, biophilic design methods

Revealing The Millimeter Environment of the New FU Orionis Candidate HBC722 with the Submillimeter Array

We present 230 GHz Submillimeter Array continuum and molecular line observations of the newly discovered FUor candidate HBC722. We report the detection of seven 1.3 mm continuum sources in the vicinity of HBC722, none of which correspond to HBC722 itself. We compile infrared and submillimeter continuum photometry of each source from previous studies and conclude that three are Class 0 embedded protostars, one is a Class I embedded protostar, one is a Class I/II transition object, and two are either starless cores or very young, very low luminosity protostars or first hydrostatic cores. We detect a northwest-southeast outflow, consistent with the previous detection of such an outflow in low-resolution, single-dish observations, and note that its axis may be precessing. We show that this outflow is centered on and driven by one of the nearby Class 0 sources rather than HBC722, and find no conclusive evidence that HBC722 itself is driving an outflow. The non-detection of HBC722 in the 1.3 mm continuum observations suggests an upper limit of 0.02 solar masses for the mass of the circumstellar disk. This limit is consistent with typical T Tauri disks and with a disk that provides sufficient mass to power the burst.Comment: 12 pages, 7 figures, accepted by Ap

Effect of solidity and inclination on propeller-nacelle force coefficients

A series of wind tunnel experiments were conducted to study the effect of propeller solidity and thrust axis inclination on the propeller normal force coefficient. Experiments were conducted in the Langley 14 by 22 foot Subsonic Tunnel with a sting mounted, counterrotation, scale model propeller and nacelle. Configurations had two rows of blades with combinations of 4 and 8 blades per hub. The solidity was varied by changing the number of blades on both rows. Tests were conducted for blade pitch setting of 31.34 deg, 36.34 deg, and 41.34 deg over a range of angle of attack from -10 deg to 90 deg and range of advance ratio from 0.8 to 1.4. The increase in propeller normal force with angle of attack is greater for propellers with higher solidity