In this paper, a new scheme for Serial communication is proposed. In this method, in addition to the pulse states (high and low), either of negative slope or positive slope of the pulse (saw-tooth waveform) is employed as a representative for another digit. Using pulse slope as a representative for a separate digit will result in sending two-bit-digits using a single pulse, which doubles the transfer rate. The proposed scheme can be used in both synchronized and asynchronized communications and can improve communication speed. Through simulating the proposed scheme, it turned out that this method, because of its proper immunity to noise, can be used as a peripheral interface alongside in-chip communication. The main idea in the raised discussion is to obtain four different geometric pulse shapes acting as four different numbers in the quaternary numeric system, in which it can be Serialized/desrialized as easy as pulse states. This proposed method and the suggested system for Serialization and deSerialization of data can be an adequate alternative in high-speed communication approaches.

In the first half of the nineteenth century, following the tremendous changesin the French society,the Romantic writers grewenthusiasticinterest about the soc;ialand humaniterian affairs, and tried to express their thoughts and ideas.through the variant forms of the Rommanticnovel.Among the most leading and succesfulforms of the time, the Serial novel was the foremost. It is the concern of this study, first to examine the social, political and economical factors that gave birth to, and hepled the development of, the Serial novel, then to discussthe characteristicsof this genre to point.how the successwasachievedthrough ever-increasingimmediatecontact between the writer and the lower classso that the Serial novel was also popularlyknown as a "litteraryrevolution" in French literature. The concludingpart shall include some of the most important. factors that brought about the decline and eventuallythe perish of the Serial novel.

Serial homicides which have been increased over the last three decades In Iran have vexed the collective conscience more than any crime. The present study is an attempt to sociologically analyze the women's Serial homicides in Qazvin province. This is a case study. The Qazvin Serial killer was the case studied. Semi-structured interview was used as the instrument for collecting the required data. Sampling was information-based. The findings demonstrated that the family status of the killer was poor and a wretched. The educational levels of the killer and his family as well as their vocational status were poor the killer's social environment was a highly crime prone due to certain offenders residing there. The killer lack certain important individual and social skills.

Proceeding the era of tonality, in the first half of 20th crntury, composers looked for new alternative systems. One of the most important methods or alternatives in this process was developed in the Vienna Second School as the dodecaphonic or twelve-tone system. This article reviews this process and introduces a path to the young composers, a way that is not limited to the twelve-tone system, but can embody it as well: «composition based on pre-designed systems».

iIn this article, the consideration of design and manufacturing method of laser base under water digital communication system for transformation of every kind of data (video, image, sound, text) is presented. By studying the effects of transmission channel (water) on the propagation properties of laser, 532 nm has been chosen as laser source wavelength. Then, the transmitter and receiver systems are discussed. Each of these systems includes two main parts: software and hardware. In software parts, to control transmission, receiption and processing of the every kind of data, essential codes have been written in MATLAB software for Serial port. In hardware parts, computer and laser TTL modulation circuit in transmitter and detector circuit and computer in receiver are related by USB to Serial converter FTDI chip. Finally, the field test shows that this system is able to best communicate (every kind of data) in 100 m link length by 3 Mb/s rate.

This paper presents an integrated production and inventory model. Our multi-echelon model includes the maximization of production while it minimizes the cost of production, inventory holding and setup operations. The model consists of two main parts, the primary and finishing operations. The primary operation corresponds to purchasing of raw material and the finishing operation is for preparation of finished product. Demand is influenced by price elasticity and the cost of purchasing raw material is also affected by demand. The resulted model, therefore, is highly nonlinear and non-convex. Geometric Programming (GP) is used to locate the global solution of the proposed model. We analyze the solution in different cases in order to study the behaviour of the model and for each case, a numerical examples is used to demonstrate the implementation of our analysis.