|
Showing 1 - 5 of
5 matches in All Departments
In ELISA formats there are several parameters that are common and
critical to assay performance and should be considered during the
optimization process, including antibodies concentration, antigen
concentration, incubation time of blocking, substrate solution and
washing solution. Though immunoassays offer a specific, sensitive
and rapid method to detect and quantify even trace amounts of
allergens in foodstuffs, certain processes can denature, alter or
destroy proteins so that they are no longer detectible by assay
using antibodies. When using monoclonal antibodies, there is a
great chance of obtaining false negatives in the detection.
Polyclonal antibodies are recommended for ELISA techniques as the
risk of obtaining false negatives is reduced as compared to
monoclonal antibodies which are quite specific.
Chrysoperla carnea, known as the common green lacewing, is an
insect in the Chrysopidae family. It is found in many parts of
North America, Europe and Asia. The adults feed on nectar, pollen
and aphid honeydew but the larvae are active predators and feed on
aphids and other small insects. It has been used in the biological
control of insectpests on crops. Chrysoperla carnea was originally
considered to be a single species with a holarctic distribution but
it has now been shown to be a complex of many cryptic, sibling
species. These are indistinguishable from each other
morphologicallybut can be recognised by variations in the
vibrational songs the insects use to communicate with each other,
which they especially do during courtship. The green lacewing eggs
are oval and secured to the plant by long slender stalks. They are
pale green when first laid but become gray later. The larvae are
about one millimetre long when they first hatch. They are brown and
resemble small alligators, crawling actively around in search of
prey. They have a pair of pincer-like mandibles on their head with
which they grasp their prey, sometimes lifting the victim off the
leaf surface to prevent its escape.
While studies specifying generic integration architectures are
abundant, little or no studies are dedicated for applications
performance over such heterogeneous networks. The purpose of this
research is to evaluate the performance of integrated UMTS and WLAN
network by using two types of standard integrated models proposed
by 3GPP, open coupling and loose coupling together with network
layer mobility management scheme such as Mobile IP.In this research
we calculate the different application's traffic our concluded
results shows that page response time is smaller for loose coupling
scheme as compare to open coupling scheme although difference is
not so much wide, pageresponse time increases with the passage of
time because number of users increases as the time passes. Same is
In case for FTP, download response time for FTP is smaller in case
of loose coupling scheme. We have also calculated the WLAN
performance parameters (delay and throughput) and UMTS downlink
traffic sent and received. We have discussed in detail architecture
and functionalities of UMTS and WLAN, mobile IP, standard
interworked UMTS and WLAN models proposed by 3GPP.
|
You may like...
Tenet
John David Washington, Robert Pattinson
Blu-ray disc
(1)
R54
Discovery Miles 540
|