Collisions between aircraft and birds have become an increasing concern for human health and safety. More than four hundred people and over four hundred aircraft have been lost globally in recent years, according to a FAA report. To minimize the number of birdstikes, microphone arrays have been used to monitor birds near the airport or some critical locations in the airspace. However, the range...

Research performed on transgenic animals has led to numerous advances in biological research. However, using traditional retroviral methods to generate transgenic avian research models has proved problematic. As a result, experiments aimed at genetic manipulations on birds have remained difficult for this popular research tool. Recently, lentiviral methods have allowed the production of transge...

recently, baghery et al. [1, 2] presented some attacks on two rfid protocols, namely yoon and jung et al. protocols, and proposed the improved version of them. however, in this note, we show that the improved version of the jung et al. protocol suffers from desynchronization attack and the improved version of the yoon's protocol suffers from secret disclosure attack. the success probabilit...

In this paper we develop an analog of the notion of the con- jugacy graph of  nite groups for the  nite semigroups by considering the Green relations of a  nite semigroup. More precisely, by de ning the new graphs $Gamma_{L}(S)$, $Gamma_{H}(S)$, $Gamma_{J}(S)$ and $Gamma_{D}(S)$ (we name them the Green graphs) related to the Green relations L R J H and D of a  nite semigroup S , we  first atte...

Steganography is the process of hiding one medium of communication (text, sound or image) within another. This paper will discuss the tools used to both hide and unhide (know as Steganalysis) information. A look at the history starting with Herodotus in ancient Greece describing secret messages written in wax on stone tablets, to world war two’s secret double meaning Nazi messages and British I...

In this paper, we adopt the QGWA-03 plant audio apparatus to investigate the sound effects on strawberry in the leaf area, the photosynthetic characteristics and other physiological indexes. It was found that when there were no significant differences between the circumstances of the two sunlight greenhouses, the strawberry after the sound wave stimulation grew stronger than in the control and ...

Threshold secret sharing (SS), also denoted as (t, n) SS, has been used extensively in the area of information security, such as for group authentication, cloud storage schemes, secure parallel communication and wireless multipath routing protocols. However, a (t, n) SS cannot detect any deceptions among the dealer and shareholders. Verifiable secret sharing (VSS) overcomes the weakness of (t, ...

This study aimed to economic evaluation of ostrich production in Sistan region by the use fuzzy conception in five platforms including (1 bird, 30 birds, 50 birds, 100 birds and 200 birds). The result showed that amount of benefit cost for 30, 50, 100 and 200 was 0.20, 0.26, 0.30, 0.31 and present value was 105, 549, 1460, 2927 million rials. According to the results obtained from present value...

1 The Mount Grace Country Hotel in Magaliesburg isn’t really far enough from Johannesburg to qualify as a “bush” resort, but it has the kind of rural, almost colonial, elegance to be familiar as a posh, quiet getaway spot for the white South African elite. Perhaps this is why the Minister of Posts, Telecommunications and Broadcasting Dr. Z. Pallo Jordan craftily chose it as the venue for the Na...