5,134,406 research outputs found
Amachi In Brief
This first issue in P/PV's In Brief series focuses on the Amachi program, which partners faith-based organizations with public agencies and nonprofit service providers to identify the children of prisoners and match them with caring adult volunteers.Amachi In Brief touches on the program's development and recruiting strategies, its early results and its expansion into new cities
Effects of Pouring Temperature on Solidification Using Energy Profile Analysis on Aluminum Alloy
This work covered the study of energy profiles as influenced by solidification on sand cast 6063
aluminum alloy. Temperature is an important parameter, most especially in foundry technology that
influences properties and morphology of cast products. Different pouring temperatures of 680oC, 740oC
and 780oC were considered. Mechanical energy expended and the quantity of heat evolved was
evaluated from results obtained from tensile test experiments carried on the three samples. Relationship
between change in coefficient of thermal expansion and change in applied tensile load were derived; it
was observed that the maximum energy expended before fracture for samples decreased with increasing
pouring temperature. Increasing pouring temperature decreased the amount of energy to be expended
during deformation. This also influenced the change in heat evolved per time
Pupal and Adult Parameters as Potential Indicators of Cottonwood Leaf Beetle (Coleoptera: Chrysomelidae) Fecundity and Longevity
Cottonwood leaf beetle, Chrysomela scripta, pupae from a laboratory colony were weighed and monitored through adult emergence, oviposition, and mortality to determine if correlations existed between various pupal or adult parameters and fecundity or longevity. Forty-three female cottonwood leaf beetles were monitored. Pupal weight was not a good indicator of fecundity, total oviposition events, number of eggs/beetle/day, or adult longevity. In addition, adult weight showed very low correlation with fecundity, adult longevity, total oviposition events, or number of eggs/beetle/day. However, adult weight was a marginal indicator of the number of eggs/beetle/day, and correlated well with adult body length. Adult longevity could be used to predict fecundity
An economic assessment of the accession of the Central and Eastern European countries to the EU single market
In 2004 the European Union is due to incorporate 10 new members, mostly from theCentral and Eastern European Countries (CECs). Trade between the EU and CECs currently falls well short of that between EU countries, and if we assume this pattern reflects both tariffs and a resource cost due to regulatory differences, then 1997 trade patterns would imply such costs are 7-15% on trade between the EU and CECs. Elimination/harmonisation of remaining tariffs is likely to bring small welfare gains to new entrants. By contrast entry to the Single Market looks far more significant: after both tariff union and entry to the Single Market total trade volumes between the EU and CECs could rise by 50-100% (much more in some commodities), while welfare gains in the CECs could be of the order of 11.5-20%, larger than the previous two studies have suggested. Welfare gains within the EU are around 0.4% of GDP, with all regions gaining but Germany gaining most. Gains are greater where capital is fully mobile
Mitigating blind spot collision utilizing ultrasonic gap perimeter sensor
Failure to identify the vehicle by the side of the vehicle or in other word as blind spot
area, especially larger vehicles are one of the causes of the accident. For some
drivers, the simple solution is to place an additional side mirror. However, it is not
the best solution because this additional side mirrors do not provide an accurate
picture of actual or estimated distance to the object or another vehicle. The objective
of this project is to identify the causes of automobile collisions, notably the side
collision impact causes by the blind spot, to develop a system that can detect the
presence vehicles on the side and to develop a system that are affordable for normal
car users. To achieve this objective, flow chart was designed to help write coding
using Arduino 1.0.2 and design hardware. This system can detect the obstacle within
range 2cm to 320cm from the edge of the project vehicle. Before this system
developed, the survey was conducted to determine what the driver wants. After that,
the design process is carried out. The input to this system is Ping ultrasonic sensor,
LCD, LED, and siren for the output part. LCD and LED were displaying the distance
from the vehicle and the siren will be switched on to warn the driver when have
obstacle in the blind spot area. As a conclusion, the Mitigating Blind Spot Collision
Utilizing Ultrasonic Gap Perimeter Sensor System has successfully completed. This
system able to detect the presence of other vehicles on the side of the project vehicle,
especially in the blind spot area and will alert the driver when the vehicle is nearby
when the alarm system is operated. The efficiency of this system to detect objects in
the blind spot area is 79.82%. Others, it will give the display value less than one
second after obstacle exists in front of the sensor. This operating time is most
important because if the system is slow, the main function of this system to detect the
obstacle in the blind spot area is not achieved
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