91 research outputs found
The acceptable face of capitalism: law, corporations and economic wellbeing
This is the author accepted manuscript. The final version is available from Taylor & Francis (Routledge) via the DOI in this record.In response to concerns that capitalism yields prosperity only at the cost of rising inequality, this paper draws upon examples from employment law and corporate governance to argue that the legal framework should reflect a broad understanding of economic wellbeing that encompasses both the costs and the benefits of corporate activity. To the extent that economic growth expands the scope of corporate welfare provision for employees in large firms, the preoccupation with distributive matters such as executive pay ratios is misplaced; in this context the ideal of equality matters not for its own sake but more because it offers a means of achieving human flourishing and fuller participation in social and economic life. The paper shows how this insight would help to ease the growing financial pressure on state-guaranteed social security, particularly in the context of increasing numbers of self-employed workers in the gig economy
New Frontier in Cooking Technology - 'Cooking Green'
An insulating carbon neutrality bag has been designed,
tested and commissioned for green cooking. This has
provided an eco - solution that has reduced the amount
of energy needed for cooking, save money, reduce
emission rate, create employment for the youths/
women and allows for waste to wealth conversion. The
Okada Wonder Bag (OWB) was designed, fabricated,
and the performance of the bag was critically
evaluated using different food stuffs (Beans, Rice,
Yam, plantain, Maize, beef, goat meat and Skin/beef
('special kpomo' from the head of a cow) to ascertain
the reliability of the bag. Results obtained show a high
degree of reliability/correlation as the bag displayed
maximum performance in terms of heat conservation
and cooking efficiency. Performance characteristics
also reveal that the bag with expanded polystyrene
insulation was better than that with wood shavings as
insulating material. Also, an attempt was made using
cooking gas as a case in point to show how much
gas/money can be saved and emission reduction by the
application ofthe insulation cooking technique and the
results were encouragin
Search for nucleon decays with EXO-200
A search for instability of nucleons bound in Xe nuclei is reported
with 223 kgyr exposure of Xe in the EXO-200 experiment. Lifetime
limits of 3.3 and 1.9 yrs are established for
nucleon decay to Sb and Te, respectively. These are the most
stringent to date, exceeding the prior decay limits by a factor of 9 and 7,
respectively
Deep Neural Networks for Energy and Position Reconstruction in EXO-200
We apply deep neural networks (DNN) to data from the EXO-200 experiment. In
the studied cases, the DNN is able to reconstruct the relevant parameters -
total energy and position - directly from raw digitized waveforms, with minimal
exceptions. For the first time, the developed algorithms are evaluated on real
detector calibration data. The accuracy of reconstruction either reaches or
exceeds what was achieved by the conventional approaches developed by EXO-200
over the course of the experiment. Most existing DNN approaches to event
reconstruction and classification in particle physics are trained on Monte
Carlo simulated events. Such algorithms are inherently limited by the accuracy
of the simulation. We describe a unique approach that, in an experiment such as
EXO-200, allows to successfully perform certain reconstruction and analysis
tasks by training the network on waveforms from experimental data, either
reducing or eliminating the reliance on the Monte Carlo.Comment: Accepted version. 33 pages, 28 figure
Characterization of an Ionization Readout Tile for nEXO
A new design for the anode of a time projection chamber, consisting of a
charge-detecting "tile", is investigated for use in large scale liquid xenon
detectors. The tile is produced by depositing 60 orthogonal metal
charge-collecting strips, 3~mm wide, on a 10~\si{\cm} 10~\si{\cm}
fused-silica wafer. These charge tiles may be employed by large detectors, such
as the proposed tonne-scale nEXO experiment to search for neutrinoless
double-beta decay. Modular by design, an array of tiles can cover a sizable
area. The width of each strip is small compared to the size of the tile, so a
Frisch grid is not required. A grid-less, tiled anode design is beneficial for
an experiment such as nEXO, where a wire tensioning support structure and
Frisch grid might contribute radioactive backgrounds and would have to be
designed to accommodate cycling to cryogenic temperatures. The segmented anode
also reduces some degeneracies in signal reconstruction that arise in
large-area crossed-wire time projection chambers. A prototype tile was tested
in a cell containing liquid xenon. Very good agreement is achieved between the
measured ionization spectrum of a Bi source and simulations that
include the microphysics of recombination in xenon and a detailed modeling of
the electrostatic field of the detector. An energy resolution =5.5\%
is observed at 570~\si{keV}, comparable to the best intrinsic ionization-only
resolution reported in literature for liquid xenon at 936~V/\si{cm}.Comment: 18 pages, 13 figures, as publishe
- …