10 research outputs found
Characteristics of wastewater from biofuel production
Wastewater is water contaminated with waste from industrial or agricultural production
and household waste. Wastewater also includes water that is formed as a result of atmospheric
precipitation within settlements and industrial facilities, sometimes called stormwater runoff.
Wastewater treatment is the treatment for destroying or removing harmful pollutants from
it. According to the degree of aggressiveness, wastewater is divided into weakly aggressive
(slightly acidic with pH = 6-6.5 and weakly alkaline with pH = 8-9); strongly aggressive
(strongly acidic with pH 9) and non-aggressive (with pH
= 6.5-8)
Revisiting S.C.P.A. 17-A: Guardianship for People with Intellectual and Developmental Disabilities
This is a report of the Mental Health Law Committee and the Disability Law Committee of the New York City Bar Association. This report was researched and written by Karen Andreasian, Natalie Chin, Kristin Booth Glen, Beth Haroules, Katheine I. Hermann, Maria Kuns, Aditi Shah, and Naomi Weinstein on behalf of the New York City Bar Association. It has been reviewed and approved by the New York City Bar Association and is being published by the City University of New York Law Review in accordance with the Association’s protocols in the interest of bringing to publication an important contribution to the discussion on how the law should respond to people with intellectual disabilities
A Spitzer Spectroscopic Survey of Low Ionization Nuclear Emission-line Regions: Characterization of the Central Source
We have conducted a comprehensive mid-IR spectroscopic investigation of 67
Low Ionization Nuclear Emission Line Regions (LINERs) using archival
observations from the high resolution modules of the Infrared Spectrograph on
board the Spitzer Space Telescope. Using the [NeV] 14 and 24um lines as active
galactic nuclei (AGN) diagnostics, we detect active black holes in 39% of the
galaxies in our sample, many of which show no signs of activity in either the
optical or X-ray bands. In particular, a detailed comparison of
multi-wavelength diagnostics shows that optical studies fail to detect AGN in
galaxies with large far-IR luminosities. These observations emphasize that the
nuclear power source in a large percentage of LINERs is obscured in the
optical. Indeed, the majority of LINERs show mid-IR [NeV]14/[NeV]24um flux
ratios well below the theoretical low-density limit, suggesting that there is
substantial extinction toward even the [NeV]-emitting region . Combining
optical, X-ray, and mid-IR diagnostics, we find an AGN detection rate in LINERs
of 74%, higher than previously reported statistics of the fraction of LINERs
hosting AGN. The [NeV]24um /[OIV]26um mid-IR line flux ratio in "AGN-LINERs" is
similar to that of standard AGN, suggesting that the spectral energy
distribution (SED) of the intrinsic optical/UV continuum is similar in the two.
This result is in contrast to previous suggestions of a UV deficit in the
intrinsic broadband continuum emission in AGN-LINERs. Consistent with our
finding of extinction to the [NeV]-emitting region, we propose that extinction
may also be responsible for the observed optical/UV deficit seen in at least
some AGN-LINERs.Comment: Accepted for publication in Ap
Integral equations for the H- X- and Y-functions
We come back to a non linear integral equation satisfied by the function H,
which is distinct from the classical H-equation. Established for the first time
by Busbridge (1955), it appeared occasionally in the literature since then.
First of all, this equation is generalized over the whole complex plane using
the method of residues. Then its counterpart in a finite slab is derived; it
consists in two series of integral equations for the X- and Y-functions. These
integral equations are finally applied to the solution of the albedo problem in
a slab.Comment: 20 pages, JQSRT, accepted 9 July 200
An improved map of the Galactic Faraday sky
We aim to summarize the current state of knowledge regarding Galactic Faraday
rotation in an all-sky map of the Galactic Faraday depth. For this we have
assembled the most extensive catalog of Faraday rotation data of compact
extragalactic polarized radio sources to date. In the map making procedure we
use a recently developed algorithm that reconstructs the map and the power
spectrum of a statistically isotropic and homogeneous field while taking into
account uncertainties in the noise statistics. This procedure is able to
identify some rotation angles that are offset by an integer multiple of pi. The
resulting map can be seen as an improved version of earlier such maps and is
made publicly available, along with a map of its uncertainty. For the angular
power spectrum we find a power law behavior with a power law index of -2.14 for
a Faraday sky where an overall variance profile as a function of Galactic
latitude has been removed, in agreement with earlier work. We show that this is
in accordance with a 3D Fourier power spectrum P(k) proportional to k^-2.14 of
the underlying field n_e times B_r under simplifying geometrical and
statistical assumptions.Comment: 16 pages, 11 figures. Update in one data catalog. All results are
available at http://www.mpa-garching.mpg.de/ift/faraday