Engineering

Performance-based Design of RC Frame Buildings with Metallic and Friction Dampers
Supplemental energy dissipation is a technique of earthquake resistant design and for improving the seismic performance of existing buildings. In the present study, a comprehensive design methodology for performance based design of frame buildings with metallic and friction dampers has been proposed. In this study, the target performance level is aimed to achieve both in terms of inter-storey d...


An optimized end-to-end process for the analysis of agile earth observation satellite missions
Agile earth observation satellite missions are becoming more and more important due to their capability to perform fast reorientation maneuvers with 3 degrees of freedom to capture different target areas along the orbital path, thus increasing the observed area and complexity of scans. The design of an agile earth observation satellite mission is a non-trivial task due to the fact that a trade-...
Biomarkers in the Diagnosis and Prognosis of Alzheimer's Disease
Alzheimer’s disease (AD) is a neurodegenerative disease that inhibits cognitive functions and has no cure. This report reviews the current diagnostic standards for AD with an emphasis on early diagnosis using the cerebrospinal fluid (CSF) biomarkers amyloid-beta, t-tau, and p-tau and fluorodeoxyglucose positron emission tomography imaging. Abnormal levels of these CSF biomarkers and decre...


High-Density Self-Contained Microfluidic KOALA Kits for Use by Everyone
Cell-based assays are essential tools used by research labs in a wide range of fields, including cell biology, toxicology, and natural product discovery labs. However, in some situations, the need for cell-based assays does not justify the costs of maintaining cell culture facilities and retaining skilled staff. The kit-on-a-lid assay (KOALA) technology enables accessible low-cost and prepackag...
Microengineered Vascular Systems for Drug Development
Recent advances in microfabrication technologies and advanced biomaterials have allowed for the development of in vitro platforms that recapitulate more physiologically relevant cellular components and function. Microengineered vascular systems are of particular importance for the efficient assessment of drug candidates to physiological barriers lining microvessels. This review highlights advan...


Crystal structure and formation mechanism of the secondary phase in Heusler Ni-Mn-Sn-Co materials
In the present work, crystal structure and formation mechanism of the secondary phase in Heusler Ni-Mn-Sn-Co materials were investigated using X-ray diffraction, scanning/transmission electron microscopy and selected-area electron diffraction techniques. Experimental results showed that the secondary phase presented in both Ni44.1Mn35.1Sn10.8Co10 as-cast bulk alloy and melt-spun ribbon, possess...
Optimization over the Pareto outcome set associated with a convex bi-objective optimization problem: theoretical results, deterministic algorithm and application to the stochastic case
Our paper consists of two main parts. In the first one, we deal with the deterministic problem of minimizing a real valued function (f) over the Pareto outcome set associated with a deterministic convex bi-objective optimization problem (BOP), in the particular case where (f) depends on the objectives of (BOP), i.e. we optimize over the Pareto set in the outcome space. In general, the optimal v...

Resolving Aspect Dependencies for Composition of Aspects
A new modularization technique is used in Aspect-oriented software development for the separation of widely used functions such as logging, caching, synchronization, and exception handling from the core business logic functions. Aspects are identified using the mathematical modeling tool, Colored Petri nets. During the software development process, dependencies may arise as a result of using op...
Potential of k -Means Clustering-Based Fuzzy Logic for Prediction of Temperature in Ambient Atmosphere
Accurate prediction of meteorological parameters is a challenging task due to dynamic nature of atmosphere. It has drawn a lot of research potential. Among this, temperature prediction has prominent applications in many important sectors like agriculture, vegetation, water resources, tourism, energy, aviation, etc. Temperature prediction is quite complex in ambient atmosphere, and stochastic mo...

Performance evaluation of coaxial thermocouple against platinum thin film gauge for heat flux measurement in shock tunnel
Data on surface heat flux is critical in all hypersonic missions due to the extent of risk and the penalty associated, when it is not properly accounted for. In the present study an E-type coaxial thermocouple has been designed, fabricated, validated and benchmarked against a more established platinum thin film sensor. The study proves that coaxial thermocouples used in impulse facilities do no...
Resolution analysis using fully 3D electrical capacitive tomography
Electrical capacitance tomography (ECT) is a non-invasive imaging technique capable of imaging dielectric permittivity contrast of an object. The ECT image reconstruction uses measured capacitance data between pairs of electrode surrounding the object. In some practical ECT applications full access to the surrounding of the object may not be available. In most popular application in ECT for ima...

Design-of-experiments application in machining titanium alloys for aerospace structural components
The present investigation is an attempt to study the effect of control factors i.e. the cutting speed, the feed rate, and the titanium alloys on response variables i.e. the cutting force, the feed force and the cutting tool temperature by using the Taguchi techniques. A number of experiments were conducted using the L18 orthogonal array on a CNC vertical machining center. The machining center w...
Monocular-vision-based method for online measurement of pose parameters of weld stud
With the rapid development of stud welding technology, weld studs are extensively used in automobile industry. A weld stud differs from a regular stud in that it has special external features. This study develops a novel non-contact, fast, and high-precision method based on monocular vision for measuring the position and attitude parameters of a weld stud. Under this method, the measuring princ...
An optical straightness measurement sensor for the KRISS watt balance
We present an optical straightness measurement sensor applicable to the watt balance experiment. Key parts of the sensor are a cube-corner prism and a right angle reflector having a sharp edge. Beam reflected from the cube-corner prism is split into two opposite directions by the right angle reflector, and collected by photo detectors connected to a lock-in amplifier. Straightness error is meas...
Realization, characterization and measurements of standard leak artefacts
Predictability of gas flows through leak elements in various conditions (geometry of leak elements, gas species, pressure) from the results of only a few measurements in a specific configuration is an issue for the gas dynamics theory. This paper aims to provide results of leak flow rate measurements performed by national metrology institutes (NMIs) in the framework of the European project JRP ...