6,692 research outputs found
Blocking Java Applets at the Firewall
This paper explores the problem of protecting a site on the Internet against hostile external Java applets while allowing trusted internal applets to run. With careful implementation, a site can be made resistant to current Java security weaknesses as well as those yet to be discovered. In addition, we describe a new attack on certain sophisticated firewalls that is most effectively realized as a Java applet
The StoreGate: a Data Model for the Atlas Software Architecture
The Atlas collaboration at CERN has adopted the Gaudi software architecture
which belongs to the blackboard family: data objects produced by knowledge
sources (e.g. reconstruction modules) are posted to a common in-memory data
base from where other modules can access them and produce new data objects. The
StoreGate has been designed, based on the Atlas requirements and the experience
of other HENP systems such as Babar, CDF, CLEO, D0 and LHCB, to identify in a
simple and efficient fashion (collections of) data objects based on their type
and/or the modules which posted them to the Transient Data Store (the
blackboard). The developer also has the freedom to use her preferred key class
to uniquely identify a data object according to any other criterion. Besides
this core functionality, the StoreGate provides the developers with a powerful
interface to handle in a coherent fashion persistable references, object
lifetimes, memory management and access control policy for the data objects in
the Store. It also provides a Handle/Proxy mechanism to define and hide the
cache fault mechanism: upon request, a missing Data Object can be transparently
created and added to the Transient Store presumably retrieving it from a
persistent data-base, or even reconstructing it on demand.Comment: Talk from the 2003 Computing in High Energy and Nuclear Physics
(CHEP03), La Jolla, Ca, USA, March 2003, 4 pages, LaTeX, MOJT00
Rapapport's broth, a better enrichment medium in the identification of Salmonella from processed frog legs
Live clams (Villorita cyprinoides) collected from their natural beds were packed in different ways like dry pack, tray pack, in oxygenated water (wet pack) and depurated samples in wet pack. It was found that the packaging in l kg lots in 200 gauge polythene bags with oxygen at a temperature of 20°C could keep them live for 4 days. In tray pack without oxygen and water they can be kept alive for 3 days at 20°C. Temperature seems to be the critical factor in the transportation of live clams. At room temperature both dry and wet pack can be kept for 24 h only. Depuration technique does not appear to be useful in prolonging the storage life of clams in live condition as percentage mortality is more at 48 h both at 20°C and room temperature compared to the non-depurated samples
Boosted Top Quark Pair Production in Soft Collinear Effective Theory
We review a Soft Collinear Effective Theory approach to the study of
factorization and resummation of QCD effects in top-quark pair production. In
particular, we consider differential cross sections such as the top-quark pair
invariant mass distribution and the top-quark transverse momentum and rapidity
distributions. Furthermore, we focus our attention on the large invariant mass
and large transverse momentum kinematic regions, characteristic of boosted top
quarks. We discuss the factorization of the differential cross section in the
double soft gluon emission and small top-quark mass limit, both in Pair
Invariant Mass (PIM) and One Particle Inclusive (1PI) kinematics. The
factorization formulas can be employed in order to implement the simultaneous
resummation of soft emission and small mass effects up to
next-to-next-to-leading logarithmic accuracy. The results are also used to
construct improved next-to-next-to-leading order approximations for the
differential cross sections.Comment: 6 pages. Proceedings of the Second Annual Conference on Large Hadron
Collider Physics (LHCP 2014), Columbia University, New York, June 2-7, 201
On-the-fly reconfigurable logic
©2005 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only. Copyright 2004 Society of Photo-Optical Instrumentation Engineers. This paper was published in Smart Structures, Devices, and Systems II, edited by Said F. Al-Sarawi, Proceedings of SPIE Vol. 5649 and is made available as an electronic reprint with permission of SPIE. One print or electronic copy may be made for personal use only. Systematic or multiple reproduction, distribution to multiple locations via electronic or other means, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.Reconfigurable Circuit (RC) platforms can be configured to implement complex combinatorial and sequential logic. In this paper we investigate various RC technologies and discuss possible methods to optimise their power, speed and area. To address the drawbacks of existing RC technologies we propose a generic architecture we call "OFRL" (On-the-Fly Reconfigurable Logic). Our objective is to provide a low power, high speed platform for reconfigurable circuit and dynamically reconfigurable logic applications that use fewer transistors than existing technologies.Kamal Rajagopalan, Braden Phillips, and Derek Abbot
Combustion knock detection and control through statistical characterization of knock levels
A method of statistically characterizing combustion knock events includes receiving signals from a sensing device such as an accelerometer, estimating at least one parameter of a probability distribution function based on the received signals, and calculating a value indicative of an r/h percentile based on the parameter to predict upcoming combustion knock events.https://digitalcommons.mtu.edu/patents/1030/thumbnail.jp
“Environmental Hypertensionology” The Effects of Environmental Factors on Blood Pressure in Clinical Practice and Research
Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/88111/1/j.1751-7176.2011.00543.x.pd
Training manual on phytoplankton identification/taxonomy
The term 'plankton' was coined by Victor Hensen in 1887, denotes
collectively all free floating and suspended bodies, both plants and animals, living
or dead, that essentially move passively in a body of water. The phytoplankters
are the microscopic plant life of the sea, which constitute the primary producers
synthesizing the basic food. It belongs to the class Algae, which besides
chlorophylls posses other characteristic pigments. The important components of
phytoplankton are Diatoms (Bacillariophyceae), Dinoflagellates (Dinophyceae),
Blue-green algae (Cyanophyceae), Phytoflagellates (Xanthophyceae,
Chrysophyceae, Haptophyceae, Cryptophyceae) and Nannoplankters (Chlorella,
Nannochloropsis etc.). In addition to these, two other Classes namely
Silicoflagellates and Coccolithophores also belong to the category of
phytoplankton
Dial variations in temperature, salinity and dissolved oxygen from the neritic waters off Cochin during April (peak summer)
Dial variations of important hydrographic parameters were studied continuously
for 7 days at a 100 m depth station off Cochin. The frequency of observations varied
from 1-3 hourly intervals. In surface waters, the ranges in temperature, salinity and
dissolved oxygen values recorded during 10-17 April were 30.64°-32.36°C, 34.56-
34.68 X lO''' and 4.06-4.65 ml/1 respectively. Tlie STD profiles in the diurnal study
revealed clearly the premonsoon warming (30°-31°C) in the upper 0-30 m depth
zone. In the water column up to 50 m depth, mean salinity values ranged from 34.6
to 35 X 10 while dissolved oxygen values were above 4 mI/1. Time series observations
on the production and utilisation of dissolved oxygen revealed wide fluctuation
from hour to hour. Vertical gradients in the diurnal study indicated the existence of
thermocline around 60 m depth with sharp decline in temperature and dissolved
oxygen and increase in salinity below 60 m. The diurnal variation on the distribution
of temperature and dissolved oxygen exhibited significant rhythmic tidal impulse of a
semi-diurnal wave pattern which was more prominent in the bottom layer below 60 m
Deep Eyes: Binocular Depth-from-Focus on Focal Stack Pairs
Human visual system relies on both binocular stereo cues and monocular
focusness cues to gain effective 3D perception. In computer vision, the two
problems are traditionally solved in separate tracks. In this paper, we present
a unified learning-based technique that simultaneously uses both types of cues
for depth inference. Specifically, we use a pair of focal stacks as input to
emulate human perception. We first construct a comprehensive focal stack
training dataset synthesized by depth-guided light field rendering. We then
construct three individual networks: a Focus-Net to extract depth from a single
focal stack, a EDoF-Net to obtain the extended depth of field (EDoF) image from
the focal stack, and a Stereo-Net to conduct stereo matching. We show how to
integrate them into a unified BDfF-Net to obtain high-quality depth maps.
Comprehensive experiments show that our approach outperforms the
state-of-the-art in both accuracy and speed and effectively emulates human
vision systems
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