Miracle-dz/UniFAR-FTUs huggingface dataset:
Design for lead‐free solder joint reliability of high‐density packages

The lead‐free solder joint reliability of several printed circuit board mounted high‐density packages, when subjected to temperature cycling was investigated by finite element modelling. The packages were a 256‐pin plastic ball grid array (PBGA), a 388‐pin PBGA, and a 1657‐pin ceramic column grid array. Emphasis was placed on the determination of the creep responses (e.g. stress, strain, and strain energy density) of the lead‐free solder joints of these packages.
The moderating effects of eco-oriented organisational culture on the green practice-performance relationship

Drawing on the natural resource-based view (NRBV), this study examines the moderating effects of eco-oriented organisational culture on the relationships between green supply chain management (GSCM) practices and firm performance. The data from 223 firms in the electronics industry are evaluated using moderated hierarchical regression analysis. This study provides insights into the growing field of corporate sustainability. First, firms that encourage employee eco-innovation have achieved better environmental performance from internal environmental management. Second, firms that use green working teams have obtained better environmental performance from GSCM practices such as green purchasing, eco-design, and cooperation with customers. Third, firms that work across functional boundaries have exhibited better economic performance from these GSCM practices. Overall, the results of this study show that firms should clearly establish a strategic vision from an environmental perspective, based on a company-wide collaborative effort.
Innovation capability in Australian manufacturing organisations: an exploratory study

This paper reports on the results of a comparative case study of innovation capability in Australian manufacturing companies. Following a review of the salient literature in the field, six case studies were undertaken with organisations having a degree of variance across company size, ownership type and industry sector. All the cases reflected a history of successful innovation and the managers were interviewed about the attributes of innovation and the ways in which sustained innovation was manifested in their organisations. Based on the interview data, a model of innovation capability was developed with a view to identifying attributes common to systematic and sustained innovation. These companies derived competitive advantage from differentiation through their innovation. The implications of the model for manufacturing organisations in general, and their managers in particular, are subsequently discussed.
Heat transfer from the stator end-windings of a low voltage concentric-wound induction motor

Heat transfer coefficients on the end-windings of a through-ventilated concentric wound induction motor are presented together with details of the air flow distribution and flow patterns in the end regions. The overall heat transfer coefficients derived from the power input differ from those measured locally using heat flux gauges. The differences are attributed to the much larger actual surface area exposed to the flow than the area of the outer envelope of the end-windings on which the calculation of the overall heat transfer coefficients has been based. The values obtained differ also from those for a lap wound motor reported earlier. This difference is attributed to the difference between the real and envelope areas of the end-windings in the two machines and to changes in the air flow pattern in the end region at the air inlet end.
InP-based multiwavelength QWIP technology

This paper describes the design, growth and fabrication characterization of novel multi-wavelength QWIP wafers based on InP material systems. We designed, grew, fabricated and characterized AlGaInAs/GaInAs QWIPs suitable for operation at 3-5 μm, and 8-12 μm spectral range. We fabricated mid-wave IR 320 x 250 focal plane arrays, hybridized them with Si -readout circuits and performed radiometric and imaging tests. Excellent imaging results of the mid-wave IR focal plane arrays with an operability of 88% and mean NEDT of 0.09K have been achieved. To our knowledge, this is the first imaging with InP based QWIPs focal plane array.
Watersheds as Natural Infrastructure: New Urban Water Report Analyzes Benefits

More than a decade ago, residents of New Mexico witnessed the devastation caused by the Cerro Grande fire. Perilous fuel loads from decades of fire suppression caused burning to last for two weeks, leaving in its wake a wasteland of destroyed homes, dead trees, and ash. One year after the fire, reservoir sediment accumulation was 140 times higher than the previous 57 years combined. Levels remained significantly elevated for five years, and costs to clean up damage to the water supply ran $17 million. Water managers in the city of Santa Fe, N.M. , took heed and invested, alongside the United States Forest Service, in a forest fuel‐reduction strategy to protect its own watershed. This program helped the city avoid an estimated $22 million in potential damage.
Multi-Tasking in the Automobile

While often being reminded to pay full attention while driving an automobile, people regularly engage in a wide variety of multi-tasking activities when they are behind the wheel. Indeed, data from the 2000 US census indicates that drivers spend an average of 25.5 minutes each day commuting to work and there is a growing interest in trying to make the time spent on the roadway more productive (Reschovsky, 2004). Unfortunately, due to the inherent limited capacity of human attention (e.g., Kanheman, 1973; Navon & Gopher, 1979, Wickens, 1984), engaging in these multi-tasking activities often comes at a cost of diverting attention away from the primary task of driving. There are a number of more traditional sources of driver distraction. These “old standards” include talking to passengers, eating, drinking, lighting a cigarette, applying make-up, and listening to the radio (cf. Stutts et al., 2003). However, over the last decade many new electronic devices have been developed and are making their way into the vehicle. In many cases, these new technologies are engaging, interactive information delivery systems. For example, drivers can now surf the Internet, send and receive e-mail or fax, communicate via cellular device, and even watch television. There is good reason to believe that some of these new multi-tasking activities may be substantially more distracting than the old standards because they are more cognitively engaging and because they are often performed over more sustained periods of time. This chapter focuses on how driving is impacted by cellular communication because this is one of the most prevalent exemplars of this new class of multi-tasking activity.
Sensitivity analysis of the tyre design parameters with respect to tyre wear using a physical tyre model

A numerical physical three-dimensional (3D) tyre model namely the physical rigid-ring tyre (PaRRT) model for tyre wear prediction, validated during previous research, is used to determine those design parameters that mostly affect tyre wear. The sensitivity analysis is carried out by modifying one parameter of the physical 3D tyre model per time. Thus, the ‘best tyre’ from a wear point of view and/or the most effective parameter to reduce tyre wear may be identified. Since tyre wear is strictly related to vehicle dynamics and driver's behaviour, the tyre wear prediction is carried out considering a validated 14-degrees-of-freedom model of a car vehicle controlled by a simple driver model. The vehicle is driven along a sample track made of curves and straight tracks performing standard and affording manoeuvres.
Study on the Mathematical Simulation of Galvanic Coupling IBC with Different Signal Transmission Paths

The mathematical simulations of the galvanic coupling intra-body communication (IBC) with different signal transmission paths have been introduced. Firstly, a galvanic coupling IBC circuit model was developed and the transfer function was derived. Secondly, the corresponding parameters were discussed. Finally, the signal attenuation characteristics of the galvanic coupling IBC were measured along the different signal transmission paths of the actual human bodies, while the corresponding mathematical simulations based on the proposed transfer function were carried out. A close agreement between the simulation results and measurement results has been demonstrated.
Logarithmic transformation to perform statistical analysis of ethylene production in peaches

ABSTRACT The present work discusses the need of testing variance homogeneity of data as a first step for performing statistical analysis of ethylene production by harvested peaches. Variance homogeneity is one of the basic assumptions in analysis of variance (ANOVA) and then, any departure from this assumption, should be corrected by a mathematical transformation of data. Ethylene production was analyzed by gas chromatography in individual fruits by using a static system. Graphics of individual residues vs. treatment means were accomplished with non-transformed and logarithmic transformed data. Results showed an evident absence of variance homogeneity, being this failure adequately stabilized by logarithmic transformation as analyzed by Barlett test. Analysis of variance (ANOVA) was also done with both kinds of data, which showed the suitability of logarithmic transformation in increasing the experiment capability to demonstrate significant differences among treatments. Least Significant Difference (LSD) test was used to compare means. This test showed misinterpretations that could arise if this kind of analysis were not performed.
Near-field and far-field investigation of miniaturized UWB antenna for imaging of wood

This article presents the design of a droplet shape ultra-wide band antenna for imaging of wood. The proposed antenna is designed on PTFE substrate with a dielectric constant of 2.55, loss tangent of 0.001- and 2.4-mm thickness. The antenna is loaded by a stub to resonate at lower band frequency, strip loading at the back, and a chamfered ground to increase the bandwidth. Despite having miniaturized dimensions of 15 mm × 15 mm, it shows better results compared to recent studies. The simulation results depict a good ultra-wide bandwidth from 3.26 GHz to 20 GHz, and 21.5–25 GHz; Besides, the proposed antenna has two bands at 1.25–1.35 GHz and 1.7–1.81 GHz. In addition to that, the antenna achieved a maximum gain of 5.69 dB and directivity of 7.3 dBi. The measurement results of S-parameters transmitted and received signals performed in air, plywood, and high-density wood show a good agreement with the simulated results. In addition, the measured results illustrate a good isolation and uniform illumination among arrays as well as the received signals’ shapes do not change in different environments, but only the amplitude. Hence, the proposed antenna seems to be adequate for microwave imaging of wood.
Today’s Business Simulation Industry

New technologies are transforming the business simulation industry. The technologies come from research in computational fields of science, and they endow simulations with new capabilities and qualities. These capabilities and qualities include computerized behavioral simulations, online feedback and coaching, advanced interfaces, learning on demand, and the ability to teach specific knowledge. While describing the new technologies, this article also describes the industry’s transformation by estimating its size, presenting trends affecting demand and supply, and analyzing its structure. It is believed the industry is going through Schumpeter’s process of creative destruction.
Seismic design for the Confederation Bridge

This paper discusses earthquake loading in the design of the Confederation Bridge. The existing limit states design method requirements and the standard National Building Code of Canada earthquake are discussed. New relationships linking the probability of exceedance of the factored earthquake to the probability of exceedance of the unfactored earthquake, and linking the probability of exceedance of the factored earthquake to the notional probability for the safety index, are discussed. The response spectrum is constructed for a design earthquake that can occur in the 100-year design life of the bridge with a probability consistent with a safety index of 4.0. This response spectrum is used in the analysis of the Confederation Bridge structure. It is shown that the critical load combination for the design is not influenced by the earthquake loading.
The wisdom of the coach: A review of managerial coaching in the Six Sigma context

This article makes the case for integrating coaching training into Six Sigma activities. It reviews the literature in the areas of process improvement, quality, leadership, and managerial coaching to show how the implementation of managerial coaching training for Six Sigma black belts would have a positive effect on the accumulation of knowledge within an organisation, thus enhancing the potential benefits of a Six Sigma process improvement effort. Current literature calls for practitioners and scholars to address Six Sigma black belts' lack of training in those soft skills that promote success and advancement within the Six Sigma project team setting. Coaching, defined as the facilitation of individual learning within an organisation, is vital to the growth of organisational learning. This paper incorporates current literature to show the inherent link between managerial coaching practice and expertise and the sustainability of Six Sigma programmes, which is essential for many companies to maintain a competitive advantage.
Plug and play (PnP) modelling approach to throughput analysis

– The purpose of this paper is to propose a “plug and play” (PnP) approach to decision modelling. An approach to building models from components based on a “LEGO block” style of manufacturing simulation and analysis. The objective of this paper is to present ideas central to PnP modelling for throughput analysis. , – Firstly, the PnP concept is introduced and the proposed framework is described. Then different techniques adopted in the framework are explained, and their applications are illustrated using a case example on manufacturing throughput analysis. Finally, the implications of this research are discussed and plans for further work are outlined. , – The proposed PnP approach for rapid decision modelling was capable to support two important goals: productivity improvement to ensure that managers can rapidly build up models, and increase communication and decision support efficiency to ensure that those who should be using it, can and will use it. , – This research has so far introduced, described, and explained the PnP approach. The idea of PnP to support manufacturing decision modelling is new and not yet well developed. It is recognised that there are a number of additional issues that must be addressed before the proposed PnP approach is ready to make a practical impact. , – The paper introduces a PnP approach to decision modelling.
Miniaturisation of quadrifilar helical antenna: impact on efficiency and phase centre position

This study addresses the intrinsic limitations of the miniaturisation of very-high frequency-band quadrifilar helical antennas. Several designs with a relative size (i.e. the ratio between antenna's heights after and before the miniaturisation) down to 27% are obtained using an optimisation process based on intensive full-wave electromagnetic simulations. Reported simulation and experimental results underline the impact of height reduction on the antennas main descriptors: radiation pattern, directivity, polarisation purity, input matching, efficiency and maximum achievable gain. It was observed that the efficiency and the gain do not decrease linearly with the reduction of the antenna height and the input matching is slightly improved for the compact antennas. The shape of radiation pattern and the polarisation purity are not significantly degraded for relative size down to 27%.
Unsupervised Concept Representation Learning for Length-Varying Text Similarity

Measuring document similarity plays an important role in natural language processing tasks. Most existing document similarity approaches suffer from the information gap caused by context and vocabulary mismatches when comparing varying-length texts. In this paper, we propose an unsupervised concept representation learning approach to address the above issues. Specifically, we propose a novel Concept Generation Network (CGNet) to learn concept representations from the perspective of the entire text corpus. Moreover, a concept-based document matching method is proposed to leverage advances in the recognition of local phrase features and corpus-level concept features. Extensive experiments on real-world data sets demonstrate that new method can achieve a considerable improvement in comparing length-varying texts. In particular, our model achieved 6.5% better F1 Score compared to the best of the baseline models for a concept-project benchmark dataset.
CRITICAL ATTRIBUTES ON SUPPLY CHAIN STRATEGY IMPLEMENTATION: CASE STUDY IN EUROPE AND ASIA

Received: 6 October 2013 Abstract Accepted: 8 November 2013 This case study research aims to compare the performance of the implementation of supply chain management (SCM) strategies within Asian and European Companies. The case study measures company’s opinions of supply chain strategy implementation through utilization of Sense and Response methodology. Critical Factor Index (CFI), Balanced Critical Factor Index (BCFI) and Scaled Critical Factor Index (SCFI) are used in this study to represent the result of comparison between European and Asian companies. From the analysis of comparison of all Sense and Response models, it can be concluded that there are differences and similarities of critical attributes that affecting supply chain strategy implementation in Asian and European companies. There are two attributes that have consistent trend for both regions; innovation and organization structure. In this research the analysis of supply chain strategy implementation was made for the needs of manufacturing industry. Suggestions for future research are multiple case studies in different industry areas in global business environment. The results provide a guideline to the company to measure the right attributes for making the right decision in a dynamic environment. It also provides good knowledge for companies to implement supply chain strategies, the main approaches to implement it and the main challenges in supply chain strategy implementation. Supply chain strategy implementation was analyzed in the European and Asian companies. This research shows that there are several developing areas for companies when implementing supply chain strategies.
Analysis of the sinonasal microbiome during health and chronic rhinosinusitis

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Beneficial effect of feeding olive pulp and Aspergillus awamori on productive performance, egg quality, serum/yolk cholesterol and oxidative status in laying Japanese quails

Poultry industry faces realistic challenge and ever-increasing problem of incessant rising in prices and limited amounts of high-quality feed materials. Thus, the feed costs can be reduced by using low-cost and locally available feedstuffs. So, it is required to constantly evaluate new feed sources, including agriculture by-products and food-industry wastes. Olive pulp (Olea europaea L., OP) represents one of the residues used as partially alternative to feed ingredients. OP is the remaining raw material from the olive oil extraction (mechanical or solvent method) after the removal of the seed fractions. Depending on oil extraction method, crude fat content can vary in the pulps. Indeed, the OP may be partly considered as ABSTRACT. In the twelve-week study, the effect of feeding olive pulp (OP) without or with Aspergillus awamori on performance, egg quality, serum lipids and antioxidant status of 360 8-week-old laying Japanese quail hens was evaluated. Birds were randomly distributed to 6 groups: control (C) receiving maize-soybean basal diet with no additives, the other supplemented with: 0.1% A. awamori (A) containing 3×106 A. awamori spores/g, 5% OP (OP5), 5% OP + 0.1% A. awamori (OP5A), 10% OP (OP10) or 10% OP + 0.1% A. awamori (OP10A). It was shown that egg weight and number were increased (P < 0.05) in groups fed OP with or without A. awamori in comparison to C group, while final body weight, feed consumption, feed conversion ratio and egg mass did not differ between treatments. Yolk (%) and yolk:albumin ratio were enhanced (P < 0.05) in groups OP5A, OP10 and OP10A, while egg shape index was improved in all treatment groups except OP10 group during the last experimental period (16–20 week of age). The hypocholesterolemic effect of OP and A. awamori was greatly noticed, where yolk contents of cholesterol and total lipids and serum levels of triglycerides, cholesterol and LDL cholesterol were reduced in nearly all treated groups. Antioxidant status of birds from supplemented groups was improved (P < 0.01) as reduced glutathione content and glutathione reductase activity were increased, while lipid peroxidation was decreased. So, dietary supplementation of OP with or without A. awamori can improve performance, egg cholesterol content, serum lipid profile and antioxidant status of laying Japanese quail hens during early laying periods. Received: 18 June 2018 Revised: 16 November 2018 Accepted: 15 March 2019
Algorithm Re-Ordering: a Solution for Abating Internet Bypass

The use of mobile data services as a means of communication came into existence through the introduction of 3 rd Generation (3G) Technology, it is expected that this technology will continue to increase opportunities for improved revenues and enable new services & tariff generation. Research have shown that the use of third party application like Tor browser, Indian proxy, Your-freedom (http://www.your-freedom.net), Privoxy etc are used to bypass the data services of- fered by the network providers. This is carried out by leveraging on virtual private network (VPN) technology, distributed network of relays and available free ports. This has limited the revenue derived by the providers in a country where such proliferation is thriving. In Nigeria for example Government on its part have taken some steps to finding solutions to end this menace and related increasing cyber crime activities, but the challenge still remain with us. This work thus postulates an innovative way of abating this activity which has lead to huge loss of revenue in the sector. The approach is a theoretical method in solving the industry-related problem. It narrowed down the problem of the current algorithm to improper algorithm order and thereby proposing an appropriate model to reducing the menace.
Decoupled 4T dynamic CAM suitable for high density storage

A new four-transistor dynamic CAM (DCAM) is introduced. The DCAM design addresses the inherent data retention problem by proposing a modified sensing scheme. The results indicate over an order of magnitude improvement in data retention time. In addition, the DCAM structure realises a decoupled match-line structure, which enables high density configurations not possible from previous 4T CAM approaches.