The identification and surveillance of agricultural management and the measurement of biophysical canopy parameters in grasslands is relevant for environmental protection as well as for political and economic reasons, as proper grassland management is partly subsidized. An ideal monitoring tool is remote sensing due to its area wide continuous observations. However, due to small-scaled land use...

A class of P systems, called EOP systems, with symbol objects processed by evolution rules distributed alongside the transitions of an Eilenberg machine, is introduced. A parallel variant of EOP systems, called EOPP systems, is also defined and the power of both EOP and EOPP systems is investigated in relationship with three parameters: number of membranes, states and set of distributed rules. ...

On August 22, 2005 the U.S. Environmental Protection Agency issued proposed new regulations for radiation releases from the planned permanent U.S. nuclear-waste repository in Yucca Mountain, Nevada. The goal of the new standards is to provide public-health protection for the next million years - even though everyone admits that the radioactive wastes will leak. Regulations now guarantee individ...

Cloud computing grows as an important keyword to accelerate IT businesses. A feature of cloud computing is distributed architecture based on unfixed nodes, and security risks have been highlighted for cloud computing services. In this paper, we present a novel approach for solving the essential issue of cloud computing: how to protect a program running in an untrusted cloud computing environmen...

The introduction of distributed energy resources (DER) in radial parts of the grid, at low and mediumvoltage levels, may adversely impact the operation of the protection. Synchronous and induction generators contribute to the fault current, creating a second path next to the fault-current contribution from the grid. This may lead to fail-to-trip as well as incorrect trip of protection based on ...

HDL-level design offers important advantages for the application of watermarking to IP cores, but its complexity also requires tools automating these watermarking algorithms. A new tool for signature distribution through combinational logic is proposed in this work. IPP@HDL, a previously proposed high-level watermarking technique, has been employed for evaluating the tool. IPP@HDL relies on spr...

Memory integrity protection has been a longstanding issue in trusted system design. Most viruses and malware attack the system by modifying data that they are not authorized to access. With the development of the Internet, viruses and malware spread much faster than ever before. In this setting, protecting the memory becomes increasingly important. However, it is a hard problem to protect the d...

A real-time system for protecting and monitoring a DC/AC converter has been designed and constructed. The proposed system consists of (a) a hardware protection unit for fast reaction, load protection and inverter fail-safe operation and (b) a microcontroller unit for calculating critical parameters of the inverter operation. The control unit malfunctions have not been investigated in this study...

The NEPTUNE power delivery system faces several challenges in serving the needs of the oceanographic community. Two major challenges, operating the system under normal conditions and protecting it against faults, require the development of new approaches unfamiliar to power engineers. In particular, the power management system must cope with several modes of potential system instability, and th...

Industry companies frequently outsource datasets to mining firms and academic institutions create repositories and share datasets in the interest of promoting research collaboration. Still, many practitioners feel reserved about about sharing or outsourcing datasets, primarily because of the fear of losing the principal rights over the dataset. This work presents a way of convincingly claiming ...