This paper describes a 1.25-Gb/s simplified CMOS optical receiver chipset for Gigabit Ethernet applications, consisting of a transimpedance amplifier (TIA) and a clock and data recovery (CDR) circuit. The TIA takes a fully differential regulated cascode configuration, demonstrating 700MHz bandwidth for 1pF photodiode capacitance, 80dBΩ transimpedance gain, -17dBm sensitivity for BER of 10-12, a...

In this paper, a clock and data recovery (CDR) circuit that supports triple data rates of 1.62, 2.7, and 5.4 Gbps for DisplayPort 1.2 standard is described. The proposed CDR circuit covers three different operating frequencies with a single VCO switching the operating frequency by the 3-bit digital code. The prototype chip has been designed and verified using a 65 nm CMOS technology. The recove...

—A burst-mode clock recovery circuit with a novel dual bit-rate structure is presented. It utilizes two gated-oscillators to align clock with data edges and can operate in half-rate clocking mode, doubling data throughput, as well as in full-rate clocking mode. The gated-oscillator reset-phase control scheme causes the starting phase of gated-oscillators to alternate repeatedly between 0° and 1...

This study is conducted to examine maternal morbidity and the use of medicinal herbs. A total of 181 women, aged 17-45 yrs gave birth in the last 5 yrs preceding the survey, were enrolled. The study was conducted in Marrakech city, Morocco. The rate of maternal morbidity was 38.1%, while 42% of women used medicinal herbs, 48.3% of them after the delivery. Medicinal plants are mostly used by wom...

This paper presents the effects of salvage value on the optimal age-replacement policy for non-repairable products sold with a renewing free-replacement warranty (RFRW). Cost models from the customer’s perspective are developed for both warranted, and non-warranted products. The corresponding optimal replacement ages are derived such that the long-run expected cost rate is minimized. Under the ...

Wide-area durable storage systems trigger data recovery to maintain target data availability levels. Data recovery needs to be triggered when storage nodes permanently fail, i.e., data is lost. Transient failures, where nodes return from failure with data, add noise to determining that a node has failed permanently. Replica placement strategies maintain data availability while minimizing cost, ...