نتایج جستجو برای: راکتور بافلدار abr
تعداد نتایج: 4493 فیلتر نتایج به سال:
The auditory brain stem response (ABR) and middle latency response (MLR) were studied in 48 young children (96 ears). The responses were elicited using low intensity stimuli (30-dB nHL clicks) and simultaneously were recorded on a dual time base. Both the ABR and MLR were elicited in 70 ears. In 12 ears, just one response was recorded (ABR in eight ears and the MLR in four ears). In 14 ears, ne...
PURPOSE Most newborns are screened for hearing loss, and many hospitals use a 2-stage protocol in which all infants are screened first with otoacoustic emissions (OAEs). In this protocol, no additional testing is done for those passing the OAE screening, but infants failing the OAE are also screened with automated auditory brainstem response (A-ABR). This study evaluated how many infants who fa...
In this paper, the eeects of various time scales on the management of ABR (Available Bit Rate) traac using feedback based control is studied. Since delay tolerable, the ABR applications can be allocated the remaining resources after CBR (Constant Bit Rate) and VBR (Variable Bit Rate) applications have been accommodated. To avoid excessive losses the transmission rate of the ABR applications sho...
Ž . The Available Bit Rate ABR service has been developed to support data applications over Asynchronous Transfer Ž . Mode ATM . The ABR service uses a closed-loop rate-based traffic management framework where the network divides left-over bandwidth among contending sources. The ATM Forum traffic management group also incorporated open-loop control capabilities to make the ABR service robust to...
We extend our earlier study of buffer requirements of TCP over ABR in two directions. First, we study the performance of TCP over ABR in an ATM backbone. On the backbone, the TCP queues are at the edge router and not inside the ATM network. The router requires buffer equal to the sum of the receiver window sizes of the participating TCP connections. Second, we introduce various patterns of VBR ...
The ATM Forum formed a working group in 1996 to address issues in the eecient support for scalable multipoint-to-multipoint (mpt-mpt) communication in ATM. These issues include traac management and, in particular, available bit rate (ABR) service. While a number of eecient protocols for point-to-point (pt-pt) ABR service have been proposed, the more challenging problem of providing mpt-mpt ABR ...
The ototoxic effects of cisplatin in a Sprague-Dawley rat model were evaluated by recordings of auditory brainstem responses (ABR) and transiently evoked otoacoustic emissions (TEOAEs). The ABR responses were evoked from alternating clicks and 8, 10, 12, 16, 20 and 30 kHz tone pips in a range from 40 to 100 dB SPL range. The TEOAEs were recorded with a non-linear protocol, and were evoked by a ...
We extend our earlier studies of buuer requirements of TCP over ABR 10, 11, 12] in two directions. First, we study the performance of TCP over ABR in an ATM backbone. On the backbone, the TCP queues are at the edge router and not inside the ATM network. The router requires buuer equal to the sum of the receiver window sizes of the participating TCP connections. Second, we introduce various patt...
A novel flow control protocol is presented for Availability Bit Rate (ABR) service in Asynchronous Transfer Mode (ATM) networks. This scheme features periodic explicit rate feedback that enables precise allocation of link bandwidth and buffer space on a hop-by-hop basis to guarantee maximum throughput, minimum cell loss, and high resource efficiency. With the inclusion of resource management ce...
We extend our earlier studies of buuer requirements of TCP over ABR 10, 11, 12] in two directions. First, we study the performance of TCP over ABR in an ATM backbone. On the backbone, the TCP queues are at the edge router and not inside the ATM network. The router requires buuer equal to the sum of the receiver window sizes of the participating TCP connections. Second, we introduce various patt...
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