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Aphidius matricariae Haliday (Hymenoptera: Braconidae) is a polyphagous solitary endoparasitoid, attacking more than 40 species of aphids. This parasitoid is an important commercial product of many companies that produce biological control agents. Storage at low temperature increases the shelf life of many biocontrol agents, allowing companies to provide a steady and sufficient supply of insects for...
This paper proposes a natural gas-lift system to increases production efficiency in smart wells. The main idea is to design an appropriate controller that improves reservoir condition and increases the well cumulated oil production by controlling the daily gas-oil ratio (GOR). In the proposed system, the procedure of injecting gas is entered into the well in a controlled way which a self-tuning controller...
A model predictive method is proposed to control the power ramp rate of a wind turbine system integrated with ultracapacitors as its high power, short-term, energy storage. In this method, it is assumed that the wind turbine output power can be predicted within a predefined horizon time interval. The proposed method involves two steps. First, the total stored energy required to maintain a preset power...
In Networked haptic virtual environments, users can haptically interact with a shared virtual world from numerous workstations over an Ethernet local area network (LAN). Such networks suffer from the communication channels' difficulties such as delay, jitter and pocket loss. Such hindrances lead the closed-loop system to undesirable oscillations/instability. In this paper, by a utilized Passive Set-Position...
Contrary to the growing use of portfolios and in spite of its rich literature, there are some problems and unanswered questions. The aim of this work is to be a useful instrument for helping fin anco practitioners and researchers with the portfolio selection problem. This study first reviews Modern Portfolio Theory's literature and describes the investment selection process. Second, this paper specifically...
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