UC-492 LotSpotter

The parking issue has quietly become the cause of a lot of stress for travelers and other regular users. It\u27s nothing new that some people miss their flight and/or get late to other important meetings and appointments because they couldn’t locate an available parking lot. Not because there isn\u27t available parking but because they don’t know where it is! What if there was some way to solve that? Introducing LotSpotter! An application built to detect and navigate to vacant parking spaces across the United States. It will leverage various technologies, including image processing, sensors, AI and mobile app development, to achieve its goal with frameworks such as OpenCV and processes from Amazon Web Services such as DynamoDB. Additionally, it will all be run through RaspberryPi to take advantage of GPS, and camera functionality! Users will be able to create accounts, reserve spaces, and much more. The days of being restricted by the struggles of metropolis are no more! LotSpotter is here

Prevention at Work: Homelessness Prevention Initiative (HPI) Interim Evaluation Report, January 2004 through September 2005

This interim report summarizes what has been learned about the processes and outcomes of interventions by HPI grantees in the first 21 months of the initiative, from January 2004 through September 2005. To ground our findings, Section One begins with a discussion of the housing, economic, and policy contexts in the U.S. and the state that impact low-income households. This section focuses on the public and nonprofit sectors these households rely upon for help when their housing circumstances are precarious.Section Two describes the households served by HPI grantees and their varied circumstances. Section Three offers detail on the prevention strategies used by grantee organizations and their collaborating partners. Section Four summarizes the results to date. Section Five highlights intervention strategies uniquely tailored for diverse populations. Section Six summarizes the key learnings to date; Section Seven concludes the report by posing issues for consideration as the final year of the initiative begins

The physics of galactic winds driven by active galactic nuclei

Active galactic nuclei (AGN) drive fast winds in the interstellar medium of their host galaxies. It is commonly assumed that the high ambient densities and intense radiation fields in galactic nuclei imply short cooling times, thus making the outflows momentum-conserving. We show that cooling of high-velocity, shocked winds in AGN is in fact inefficient in a wide range of circumstances, including conditions relevant to ultra-luminous infrared galaxies (ULIRGs), resulting in energy-conserving outflows. We further show that fast energy-conserving outflows can tolerate a large amount of mixing with cooler gas before radiative losses become important. For winds with initial velocity v_in>~10,000 km s^-1, as observed in ultra-violet and X-ray absorption, the shocked wind develops a two-temperature structure. While most of the thermal pressure support is provided by the protons, the cooling processes operate directly only on the electrons. This significantly slows down inverse Compton cooling, while free free cooling is negligible. Slower winds with v_in~1,000 km s^-1, such as may be driven by radiation pressure on dust, can also experience energy-conserving phases but under more restrictive conditions. During the energy-conserving phase, the momentum flux of an outflow is boosted by a factor ~v_in/2v_s by work done by the hot post-shock gas, where v_s is the velocity of the swept-up material. Energy-conserving outflows driven by fast AGN winds (v_in~0.1c) may therefore explain the momentum fluxes Pdot>>L_AGN/c of galaxy-scale outflows recently measured in luminous quasars and ULIRGs. Shocked wind bubbles expanding normal to galactic disks may also explain the large-scale bipolar structures observed in some systems, including around the Galactic Center, and can produce significant radio, X-ray, and gamma-ray emission. [Abridged]Comment: 20 pages, 8 figures. MNRAS, in pres

Shining Light on Merging Galaxies I: The Ongoing Merger of a Quasar with a `Green Valley' Galaxy

Serendipitous observations of a pair z = 0.37 interacting galaxies (one hosting a quasar) show a massive gaseous bridge of material connecting the two objects. This bridge is photoionized by the quasar (QSO) revealing gas along the entire projected 38 kpc sightline connecting the two galaxies. The emission lines that result give an unprecedented opportunity to study the merger process at this redshift. We determine the kinematics, ionization parameter (log U ~ -2.5 +- 0.03), column density (N_H ~ 10^{21} cm^{-2}), metallicity ([M/H] ~ -0.20 +- 0.15), and mass (~ 10^8 Msun) of the gaseous bridge. We simultaneously constrain properties of the QSO-host (M_DM>8.8x 10^{11} Msun) and its companion galaxy (M_DM>2.1 x 10^{11} Msun; M_star ~ 2 x 10^{10} Msun; stellar burst age=300-800 Myr; SFR~6 Msun/yr; and metallicity 12+log (O/H)= 8.64 +- 0.2). The general properties of this system match the standard paradigm of a galaxy-galaxy merger caught between first and second passage while one of the galaxies hosts an active quasar. The companion galaxy lies in the so-called `green valley', with a stellar population consistent with a recent starburst triggered during the first passage of the merger and has no detectable AGN activity. In addition to providing case-studies of quasars associated with galaxy mergers, quasar/galaxy pairs with QSO-photoionized tidal bridges such as this one offer unique insights into the galaxy properties while also distinguishing an important and inadequately understood phase of galaxy evolution.Comment: 23 pages, 12 figures, 5 tables, Submitted to ApJ, revised to address referee's comment

Prevention at Work: Homelessness Prevention Initiative (HPI) Interim Evaluation Report, January 2004 through September 2005

This interim report summarizes what has been learned about the processes and outcomes of interventions by HPI grantees in the first 21 months of the initiative, from January 2004 through September 2005. To ground our findings, Section One begins with a discussion of the housing, economic, and policy contexts in the U.S. and the state that impact low-income households. This section focuses on the public and nonprofit sectors these households rely upon for help when their housing circumstances are precarious.Section Two describes the households served by HPI grantees and their varied circumstances. Section Three offers detail on the prevention strategies used by grantee organizations and their collaborating partners. Section Four summarizes the results to date. Section Five highlights intervention strategies uniquely tailored for diverse populations. Section Six summarizes the key learnings to date; Section Seven concludes the report by posing issues for consideration as the final year of the initiative begins

Prevention at Work: Homelessness Prevention Initiative (HPI) Interim Evaluation Report, January 2004 through September 2005

This interim report summarizes what has been learned about the processes and outcomes of interventions by HPI grantees in the first 21 months of the initiative, from January 2004 through September 2005. To ground our findings, Section One begins with a discussion of the housing, economic, and policy contexts in the U.S. and the state that impact low-income households. This section focuses on the public and nonprofit sectors these households rely upon for help when their housing circumstances are precarious.Section Two describes the households served by HPI grantees and their varied circumstances. Section Three offers detail on the prevention strategies used by grantee organizations and their collaborating partners. Section Four summarizes the results to date. Section Five highlights intervention strategies uniquely tailored for diverse populations. Section Six summarizes the key learnings to date; Section Seven concludes the report by posing issues for consideration as the final year of the initiative begins