in this paper two nodes to model isotropic and anisotropic media in transmission line matrix method (tlm) are presented. by using these two nodes, the permeability and permittivity of an anisotropic media can be modeled simultaneously. another application of these nodes is in modeling media with permittivity and permeability less than one. in the conventional 2 dimensional tlm, the stubs repres...

lymph node dissection is of prime importance for accurate staging of colorectal carcinomas. since a great number of small lymph nodes are missed in the traditional method, several fat clearing solutions have been introduced for easier detection of smaller lymph nodes. in this study we evaluated the efficacy of a new fat clearing solution so-called lymph node revealing solution (lnrs) in colecto...

The topological ordering algorithm sorts nodes of a directed graph such that the order of the tail of each arc is lower than the order of its head. In this paper, we introduce the notion of covering between nodes of a directed graph. Then, we apply the topological orderingalgorithm on graphs containing the covering nodes. We show that there exists a cut set withforward arcs in these...

due to limitations in computing resources of mobile nodes, mobile ad-hoc networks (manets) are very fault-prone. so far, redundancy at different levels of the network has been considered an efficient strategy to enhance the fault-tolerance of networks. indeed, ad-hoc networks are extremely redundant; therefore, natural redundancy to fault tolerance enhancement has a great impact on the network ...

Cycle simulators, in-circuit emulators, and hardware accelerators have made it possible to rapidly model the functionality of large digital designs. But these techniques provide limited visibility of internal design nodes, making debugging hard. Simulators run slowly when all nodes are traced. Emulators provide full visibility only with limited depth, or with greatly reduced speed. This paper d...

In recent years, wireless sensor networks have drawn great attention. This type of network is composed of a large number of sensor nodes which are able to sense, process and communicate. Besides, they are used in various fields such as emergency relief in disasters, monitoring the environment, military affairs and etc. Sensor nodes collect environmental data by using their sensors and send them...

One of the most significant components in a cluster is the interconnection network between computational nodes. A majority of today’s clusters use either switched Fast Ethernet, Gigabit Ethernet, or a specialized switch fabric to connect nodes. However, the use of these specialized switch fabrics may not necessarily benefit the users, and in some cases they perform only slightly better than com...

In our paper, we study the vulnerability in cascading failures of real-world network (power grid) under intentional attacks. Here, use three indexes ( B , id="M2"> K id="M3"> k -shell) to measure importance nodes; that is, define attacks, respectively. Under these process cascade effect by number avalan...

background: the axillary and supraclavicular nodal volume treatment results in improvement of local control and survival after breast conserving surgery (bcs) or modified radical mastectomy (mrm). studies on the depth of these nodes have questioned the consistent use of standard fields for all patients. this study was done to assess the dose delivery to these lymph nodes with conventional treat...