I n this paper, we present a robot system for inpipe inspection of underground urban gas pipelines. The robot is configured as an articulated structure like a snake with a tether cable. Two active driving vehicles are located in front and rear of the system, and passive modules such as a control module are chained between the active vehicles. The proposed robot has outstanding mobility oflered ...

Related Articles High-performance double-filter soft x-ray diagnostic for measurement of electron temperature structure and dynamics Rev. Sci. Instrum. 83, 10E129 (2012) Molybdenum emission from impurity-induced m = 1 snake-modes on the Alcator C-Mod tokamak Rev. Sci. Instrum. 83, 10E517 (2012) Extreme ultraviolet spectroscopy and modeling of Cu on the SSPX Spheromak and laser plasma “Sparky” R...

OBJECTIVE Infections of snake bite wounds by Shewanella are rarely discussed in the medical literature. This study aims to characterize the presentation and management of Shewanella infections in snake bite wounds. METHOD We retrospectively investigated the microbiology, clinical features, and outcomes of patients with Shewanella infected snake bite wounds admitted to a tertiary medical cente...

In this study, we discover some deficiencies of GVF and GGVF Snake such as it can not capture boundaries like “U” and “S” completely because of the counteraction of some external forces and the influence of the local minimum external forces. Based on analyzing force distribution rules of gradient vector flow, a standard is introduced to distinguish every control point is true or false. An addit...

In the present paper, using triangular $A-$statistical convergence for double sequences, which is an interesting method, we prove a Korovkin-type approximation theorem positive linear operators on space of all real-valued continuous functions $\left[ 0,\infty \right)\times \left[ \right) $ with property that have finite limit at infinity. Moreover, rate via modulus continuity. Finally, give som...

Many active secretions produced by animals have been employed in the development of new drugs to treat diseases such as hypertension and cancer. Snake venom toxins contributed significantly to the treatment of many medical conditions. Venomous snakes have a bad reputation and rightly so because of their often deadly bites. But what makes a snake’s bite so deadly is the venom. Of the 3000 snake ...

This communication presents and justifies ideas related to motion control of snake robots that are currently the subject of ongoing investigations by the authors. In particular, we highlight requirements for intelligent and e cient snake robot locomotion in unstructured environments, and subsequently we present two new design concepts for snake robots that comply with these requirements. The fi...

Active contours or snakes are an effective edge-based method in segmenting an object of interest. However, the segmented boundary of a moving object in one video frame may lie far from the same moving object in the next frame due to its rapid motion, causing the snake to converge on the wrong edges. To guide the snake toward the appropriate edges, we have added gradient-directional information ...

Snake bite was known as one of the most important public health concerns world wild. Respiratory and cardiac problems and destruction of endothelium system occurs as a result of snake bite. Some proteins and peptides in snake venom have potential for drug discovery studies. According to the important role of cell adhesion and angiogenesis in cancer development, identification of new therapeutic...