TTL Research Papers - Academia.edu (original) (raw)

Transistor–transistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors. It is called transistor–transistor logic because both the logic gating function (e.g., AND) and the amplifying... more

Transistor–transistor logic (TTL) is a class of digital circuits built from bipolar junction transistors (BJT) and resistors. It is called transistor–transistor logic because both the logic gating function (e.g., AND) and the amplifying function are performed by transistors (contrast with RTL and DTL).
TTL is notable for being a widespread integrated circuit (IC) family used in many applications such as computers, industrial controls, test equipment and
instrumentation, consumer electronics, synthesizers, etc. The designation TTL is sometimes used to mean TTL compatible logic levels, even when not associated
directly with TTL integrated circuits, for example as a label on the inputs and outputs of electronic instruments

Exponentially growing data, big data, dark data and data trash are throwing excellent opportunities in the world. But associated costs and risks are also significant. “Big Garbage in, Big Garbage out” seems new phrase in computing. This... more

Exponentially growing data, big data, dark data and data trash are throwing excellent opportunities in the world. But associated costs and risks are also significant. “Big Garbage in, Big Garbage out” seems new phrase in computing. This paper is motivated by risk and cost stresses on non-IT firms. Literature review, from management perspective, reveals lack of world’s attention towards immortality of data in the data stores of the world and rising risks & costs. Progressive digitization calls for regular elimination of data trash and consequent avoidable costs. Existing concept of Time to Live (TTL) or hop limit is eliminating huge data in transit on the internet system in real time. Similar concepts and tools could be potential help in reduction of size of data inventory. Paper presents a rudimentary model for expansion of concept of TTL with the assistance of user defined shelf life of data.

A network on a chip is a network based communication subsystem on an integrated circuit, most typically between modules in a system on chip (SoC). The modules on the IC are typically semiconductor IP cores schematizing various functions... more

A network on a chip is a network based communication subsystem on an integrated circuit, most typically between modules in a system on chip (SoC). The modules on the IC are typically semiconductor IP cores schematizing various functions of the computer system and are designed to be modular in the sense of network science. The network on chip is a switching network between SOC in the router. Deadlock and Livelock freedom in Routing is one of current issue in NoC routing. The Deadlock and livelock freedom prohibiting certain routing turns. NOC based architecture uses great amount of power. To schedule the processes, a round-robin scheduler generally allocate time for sharing, giving each job based on time slot (its allowance of CPU time) and interrupts the duty if it's not completed by them. When the duty is resumed next time a time slot is assigned to it. If the process ends or changes its state to waiting during its fixed time quantum, the scheduler selects the primary process within the ready queue to execute. In the absence of time sharing, or if the quantum were large relative to the size of the role, a process that produced large jobs would be preferred over other processes. Round-robin algorithm is a pre algorithm technique as the scheduler forces the process out of the CPU once the time allocation expires. Round robin algorithm reduces the dynamic power in the module. The algorithm is written by using Verilog HDL and tested on Xilinx 14.7 ISE and the algorithm is implemented by using FPGA VERTEX5 kit.

Exponentially growing data, big data, dark data and data trash are throwing excellent opportunities in the world. But associated costs and risks are also significant. “Big Garbage in, Big Garbage out” seems new phrase in computing. This... more

Exponentially growing data, big data, dark data and data trash are throwing
excellent opportunities in the world. But associated costs and risks are also significant.
“Big Garbage in, Big Garbage out” seems new phrase in computing. This paper is
motivated by risk and cost stresses on non-IT firms. Literature review, from
management perspective, reveals lack of world’s attention towards immortality of data
in the data stores of the world and rising risks & costs. Progressive digitization calls
for regular elimination of data trash and consequent avoidable costs. Existing concept
of Time to Live (TTL) or hop limit is eliminating huge data in transit on the internet
system in real time. Similar concepts and tools could be potential help in reduction of
size of data inventory. Paper presents a rudimentary model for expansion of concept of
TTL with the assistance of user defined shelf life of data

The UK Met Office's Unified Model is used at a climate resolution (N216, ~0.83°×~0.56°, ~60 km) to assess the impact of deep tropical convection on the structure of the tropical tropopause layer (TTL). We focus on the potential for rapid... more

The UK Met Office's Unified Model is used at a climate resolution (N216, ~0.83°×~0.56°, ~60 km) to assess the impact of deep tropical convection on the structure of the tropical tropopause layer (TTL). We focus on the potential for rapid transport of short-lived ozone depleting species to the stratosphere by rapid convective uplift. The modelled horizontal structure of organised convection is shown to match closely with signatures found in the OLR satellite data. In the model, deep convective elevators rapidly lift air from 4–5 km up to 12–14 km. The influx of tropospheric air entering the TTL (11–12 km) is similar for all tropical regions with most convection stopping below ~14 km. The tropical tropopause is coldest and driest between November and February, coinciding with the greatest upwelling over the tropical warm pool. As this deep convection is co-located with bromine-rich biogenic coastal emissions, this period and location could potentially be the preferential gateway for stratospheric bromine