We describe configuration space visualization methods for mechanical design. Configuration spaces are geometric representations of mechanical function that encode quantitative information, such as part motions, and qualitative information, such as system failure modes. Visualization tools help designers elucidate the qualitative information, which appears as geometric properties of the configur...

We analyse a dataset from the Offshore Reliability Data (OREDA) Database, looking for a model, which can be used to unveil aspects of the quality of the maintenance performed. To do so we must investigate the mathematical modelling of maintenance and repair of components that can fail due to a variety of failure mechanisms. NOTE! UNTIL WE GET A “GO” FROM THE OREDA PROJECT THE DATA IN Table 1 SH...

This document identifies a set of failure cases that may be encountered by IPv6-enabled mobile customers in roaming scenarios. The analysis reveals that the failure causes include improper configurations, incomplete functionality support in equipment, and inconsistent IPv6 deployment strategies between the home and the visited networks. Status of This Memo This document is not an Internet Stand...

The ability to reason about and predict the outcome of contacts is paramount to the successful execution of many robot tasks. Analytical rigid-body contact models are used extensively in planning and control due to their computational efficiency and simplicity, yet despite their prevalence, little if any empirical comparison of these models has been made and it is unclear how well they approxim...

A self-diagnosis design for wireless sensor node is a big challenge for designers. Particularly, when sensor nodes are deployed in harsh environment, it’s very difficult for human to intervene in case of hardware failure of node components. In this paper, we present our novel self-diagnosis for the discrete event systems (DES) like sensor node, which includes a complete strategy of self-diagnos...

The higher the reliability requirements on a product are, the more extensive the test must be to ensure the required reliability. One is often unable to obtain a reasonable amount of test items, when stresses approximate normal operating conditions. To reduce sample-sizes and test duration components are exposed to much higher stresses during the test than within their normal use conditions. Th...

Understanding what makes a good wood adhesive is difficult since the type of adhesive, wood species, bonding process, and resultant products vary considerably. Wood bonds are subjected to a variety of tests that reflect the different product performance criteria in diverse countries. The most common tests involve some type of moisture resistance; both wood and adhesive factors influence this mo...

We investigate the effects of initialization and architecture on the start of training in deep ReLU nets. We identify two common failure modes for early training in which the mean and variance of activations are poorly behaved. For each failure mode, we give a rigorous proof of when it occurs at initialization and how to avoid it. The first failure mode, exploding/vanishing mean activation leng...

The quality and reliability of plastic-encapsulated microcircuits (PEMs) manufactured today are closely equivalent, and in some ways superior, to their hermetic counterparts. The key to reliable use of PEMs in military applications is gained by matching the capabilities of PEMs to the application environment. The intent of this paper is to address the guidelines for achieving these ends by summ...

The reliability of nuclear power plant electrical systems is an important guarantee safety, and the common fault failure problem arising from redundant design intelligent control may greatly affect assessment results. Combined with features repairability, multi-state characteristics, systems, a analysis method based on GO-FLOW considering proposed. This study firstly constructs algorithmic mode...