A text messaging service, among other functions of mobile phones, allows mobile phone subscribers to send and receive alphanumeric characters and emoticons. The discourse of the text messages characterizes a kind of interaction, mostly on the boundary between verbal and visual communication. Adopting Halliday's Socio-semiotic Model of Language, this study considered three register variables of filed, mode, and tenor in a text message corpus comprising 2440 text messages collected from 122 medical students at Ahvaz Jundishapur University of Medical Sciences to investigate how the discourse of text message can be affected by the sociolinguistic dimensions of the context of language use. To that end, text messages were analyzed and categorized in term of the social interaction that constituted the content of the messages. The findings revealed that mobile phone text messaging is an asynchronous mode of communication which is characterized with particular register variables, and there are also pragmatic reasons in addition to the technical restrictions for the creation of this register as its users actively and selectively make use of the resources of spoken and written discourses in constructing the message.

Improving testability during the early stages of High-level Synthesis (HLS) has several benefits including reduced test hardwar, overheads, reduced test costs, reduced design iterations, and significant improved fault coverage. In this paper, we present a novel register allocation algorithm which is based on weighted graph coloring, targeting testability improvement. In our register allocation method, several high-level testability parameters including sequential depth, sequential loop, and controllability/observability are considered. Experiments show using this register allocation method results in significant improvement in A TPG time and fault coverage.

The present article investigates the register of truck driver community as speakers of a discrete occupational group. Having classified the collected language data into verbal and non-verbal expressions, the following characteristics have been identified as the most distinguished characteristics of the register: brevity, occupational direction of the expressions, colloquial and informal style of the expressions and destiny oriented nature of the sentences. Having identified the prominent aforementioned characteristics of the analyzed register, the functional conformity of them with seven functions of language, introduced by Halliday (1973), has been investigated. The results show that the register of truck driver community, as a variety of a language (Persian), can reflect all the social functions of language.

The main portion of the power consumption in high speed register files is related to read out paths which are implemented using the dynamic circuits. For this reason, a new dynamic circuit technique is proposed in this paper to reduce the power consumption of the register files without significant speed and noise immunity degradation. In the proposed dynamic circuit, the pull down network is partitioned to the some smaller pull down networks to increase the circuit performance. Moreover, pull-down networks are precharged using NMOS transistors to reduce the voltage swing and hence decrease the power consumption. A 64-word x 32-bit 2-read, 1-write ported register file is implemented using the proposed circuit technique. Simulation of register files are performed using HSPICE simulator in low-Vth 90-nm CMOS technology model. Simulation results demonstrate 37% and 36% reduction in power and delay respectively at the same noise immunity compared to the conventional register file.