Miracle-dz/UniFAR-FTUs huggingface dataset:
Influence of the Flow From an Axial Fan on the Performance of a Heat Exchanger

Limited water supplies in arid regions that have abundant solar resources eliminates the use of water as a feasible means of cooling condensers in a Concentrated Solar Power (CSP) plant condenser. This has triggered the need to optimise existing air-cooled condenser technology, which is currently extremely inefficient. This paper aims to investigate the influence of various fan parameters on the performance of a cross-flow heat exchanger. The study first focuses on the effect of varying the distance between the fan and the heat exchanger in order to establish if uniform airflow distributions can be achieved with acceptable axial spacing between the fan and the heat exchanger. This was achieved by mapping the velocity field at the outlet from the heat exchanger by means of a Particle Image Velocimetry (PIV) analysis. The analysis was carried out for two air flow scenarios; the fan mounted at the inlet to the heat exchanger (forced draught) and the fan mounted at the outlet of the heat exchanger (induced draught). An investigation into the effect of fan speed on velocity distribution was also carried out. The measurements which are presented show that uniform velocity distributions can be achieved with relatively small fan to heat exchanger spacing for the case of the induced draught, whilst for the forced draft, although increasing the fan to heat exchanger spacing resulted in increased flow uniformity, the flow was still highly non uniform at fan to heat exchanger spacing of up to 1.4 times the fan tip radius. The measurements also showed little effect of fan speed on normalised velocity distribution. Combining the fore mentioned measurements with an analytical calculation technique, the heat flux per unit area across the heat exchanger was calculated. The results highlight the limitations on heat transfer in various regions of the heat exchanger in both flow scenarios. These measurements and calculations will facilitate designers of air cooled heat exchangers in achieving the minimum fan to heat exchanger spacing which gives no further increase in total heat transfer.Copyright © 2011 by ASME
Technostress and its impact on job satisfaction: Evidences during COVID-19 pandemic among faculty members in higher education in Karnataka

Teachers in schools, colleges, and universities have utilized Information and Communication Technology (ICT) based learning and teaching in the present COVID-19 pandemic situation. Teachers, students, and all other stakeholders have been stressed as a result of this abrupt paradigm shift in education. In recent years, teaching has become a difficult job (Saras, 2018), Instructors are expected to quickly adapt and incorporate technological innovations into their teaching while also participating in administrative and other academic activities, all of which contribute to occupational stress among teachers. Competition has crept into the education industry in this dynamic climate. Faculty today serves in a variety of positions in addition to instructing students, such as mentor, coach, consultant, administrator, researcher, and so on. He or she is required to devote more time and effort to the institutions to meet the demands of an ever-changing academic environment. This study attempted to study the influence of personal variables like gender, course and tenure on technostress. The results found that the personal characteristics had no significant impact on technostress in a sample of 84technical and non-technical faculty members. Further, technostress did not show to have any impact on job satisfaction and organisational commitment; indicating a need for a more comprehensive further study.
Heat Transfer Ahead of a SAGD Steam Chamber, a Study of Thermocouple Data From Phase B of the Underground Test Facility (Dover Project)

Phase B at the Underground Test Facility (Dover Project) is the longest running and most instrumented SAGD pattern in the world and is operated by Devon Canada (formerly Northstar Energy Corporation). Techniques are presented which allow for the interpretation of temperature data from the pilot to better understand the growth of a SAGD steam chamber over time. Calculating the rate and direction of steam chamber movement, the in situ thermal diffusivity and the role of conduction and convection in heat transfer provide a foundation for understanding the interaction between the SAGD recovery process and the reservoir.
Estimates of peak roof displacement using equivalent single degree of freedom systems

The accuracy of a new pushover analysis procedure for estimating the peak roof displacement of multistory buildings subjected to earthquake ground shaking is assessed in a pilot study. The energy-based pushover uses a displacement derived from the work done in the nonlinear static (pushover) analysis to establish the capacity curve, in contrast to the use of the roof displacement in conventional pushover analysis procedures. Roof displacement estimates obtained with the energy-based and conventional procedures are compared, relative to the peak values computed in nonlinear dynamic analyses, for three- and nine-story frames as well as an eight-story reinforced concrete wall building. The energy-based approach was found to provide more accurate estimates of the peak roof displacement (in a mean sense) for 17 of the 20 cases considered.
Azolla - A Sustainable Feed Substitute for Livestock

The floating fem Azolla is so tough that it looks like an alga. It belongs to the family of Azollaceae. The fern Azolla hosts a symbiotic blue-green alga Anabaena azollae, which "is responsible for the fixation and assimilation of atmospheric nitrogen. Azolla in tum provides the carbon source and favourable environment for the growth and development of the BGA symbiont. In Azolla the endo-symbiont BGA is even carried through the sexual reproductive phase -the only one of this kind in the plant kingdom. It is this unique symbiotic relationship, which makes Azolla a wonder plant.
New Technology Evokes Old Memories: Frequent Smartphone Use Increases Feeling of Nostalgia

In the era of technology, smartphone use occupies an important position in our lives. The present research focused on the psychological consequence of frequent smartphone use and possible way to remedy it. We proposed that frequent smartphone use could damage people’s sense of control and in turn trigger nostalgia. Moreover, nostalgia could directly compensate for the low sense of control induced by frequent smartphone use. Five studies (N = 918) were conducted. Study 1 found through a field study that frequent smartphone use increases nostalgia. Studies 2 and 3 found through 14-day tracking and a laboratory experiment that frequent smartphone use decreased people’s sense of control and then triggered nostalgia. Furthermore, nostalgia could enhance the low sense of control, and it worked by increasing self-esteem (Studies 4 and 5). The findings show the negative impact of frequent smartphone use, and nostalgia is an effective way to remedy it without preventing people from using smartphones.
Electrical Equivalent Circuit of Multi-mode Flexible Beams with Piezoelectric Elements

Surface mounted piezoelectric sensors and actuators on elastic structures are often connected to electrical networks. The coupled equations of motion of the elastic structure with piezoelectric elements are already well known. However, due to complex behavior of some electrical elements in the electrical network, it is not an easy task to obtain the integrated equations of the whole system. A good remedy for this problem is to take advantage of an equivalent electrical circuit (EEC) representation of the mechanical part, leading the entire system to be represented as an electrical circuit. In this study, the authors propose a new method for constructing the EEC. This method is based upon the multimode analysis of vibrating structures. Utilizing modal analysis, the equations are converted to tridiagonal form which is shown to be appropriate for constructing the EEC. In contrast to previous works, no restrictive approximations are made in its development. This method can also be used in similar applications, such as power harvesting from vibrating structures.
The Progress of Intestinal Epithelial Models from Cell Lines to Gut-On-Chip

Over the past years, several preclinical in vitro and ex vivo models have been developed that helped to understand some of the critical aspects of intestinal functions in health and disease such as inflammatory bowel disease (IBD). However, the translation to the human in vivo situation remains problematic. The main reason for this is that these approaches fail to fully reflect the multifactorial and complex in vivo environment (e.g., including microbiota, nutrition, and immune response) in the gut system. Although conventional models such as cell lines, Ussing chamber, and the everted sac are still used, increasingly more sophisticated intestinal models have been developed over the past years including organoids, InTESTine™ and microfluidic gut-on-chip. In this review, we gathered the most recent insights on the setup, advantages, limitations, and future perspectives of most frequently used in vitro and ex vivo models to study intestinal physiology and functions in health and disease.
Patterns of business model innovation for advancing IoT platforms

PurposeThe emergence of Internet of Things (IoT) platforms in product companies opens up new data-driven business opportunities. This paper looks at the emergence of these IoT platforms from a business-model perspective.Design/methodology/approachThe study applies a mixed method with two research studies: Study I–a cluster analysis based on a quantitative survey, and Study II–case studies based on qualitative interviews.FindingsThe findings reveal that there is no gradual shift in a company's business model, but in fact three distinct and sequential patterns of business model innovations: (1) platform skimming, (2) platform revenue generation and (3) platform orchestration.Research limitations/implicationsThe results are subject to the typical limitations of both quantitative and qualitative studies.Practical implicationsThe results provide guidance to managers on how to modify the components of the business model (value proposition, value creation and/or delivery and profit equation) in order to enable platforms to advance.Social implicationsAs IoT platforms continue to advance, product companies achieve better performance in terms of productivity and profitability, and more easily secure competitive advantages and jobs.Originality/valueThe paper makes three original contributions: (1) it is the first quantitative study on IoT platforms in product companies, (2) identifies three patterns of business model innovations and (3) offers a first process perspective for understanding the sequence of these patterns as IoT platforms advance.
Mental Health and Adherence to COVID-19 Protective Behaviors among Cancer Patients during the COVID-19 Pandemic: An International, Multinational Cross-Sectional Study

Simple Summary Whilst information on the impact of COVID-19 on cancer care continues to increase exponentially, little is known about the impact of COVID-19 on the mental health and coping behaviors of cancer patients. This study constitutes a sub-study of a large international survey conducted during the first wave of the pandemic, looking specifically at the impact of COVID-19 on the mental health and protective behaviors of cancer participants, compared to non-cancer participants. It also explored whether cancer participants perceived COVID-19 as a bigger threat compared to their cancer and whether this perception affected their psychological outcomes, such as their perceived level of stress. Overall, cancer participants appeared better adapted compared to non-cancer participants, well-functioning, resilient and able to adjust, and prepared to deal with what is otherwise a worldwide crisis; perhaps as a result of their previous cancer experience. Whilst good news, these results should not lead to a dismissal of the specific needs of cancer patients and as the pandemic drags on, cancer population dedicated studies should be performed to ensure adequate care for these patients. Abstract A population-based cross-sectional study was conducted during the first COVID-19 wave, to examine the impact of COVID-19 on mental health using an anonymous online survey, enrolling 9565 individuals in 78 countries. The current sub-study examined the impact of the pandemic and the associated lockdown measures on the mental health, and protective behaviors of cancer patients in comparison to non-cancer participants. Furthermore, 264 participants from 30 different countries reported being cancer patients. The median age was 51.5 years, 79.9% were female, and 28% had breast cancer. Cancer participants reported higher self-efficacy to follow recommended national guidelines regarding COVID-19 protective behaviors compared to non-cancer participants (p < 0.01). They were less stressed (p < 0.01), more psychologically flexible (p < 0.01), and had higher levels of positive affect compared to non-cancer participants. Amongst cancer participants, the majority (80.3%) reported COVID-19, not their cancer, as their priority during the first wave of the pandemic and females reported higher levels of stress compared to males. In conclusion, cancer participants appeared to have handled the unpredictable nature of the first wave of the pandemic efficiently, with a positive attitude towards an unknown and otherwise frightening situation. Larger, cancer population specific and longitudinal studies are warranted to ensure adequate medical and psychological care for cancer patients.
ANALYZING THE PRODUCT POSITIONING OF WOMEN’S BEAUTY SOAP IN MANADO

There is no product in the world that does not have a position. Product position is the position of a product relative to competing products in the minds of customers. One way to assess the current position of a product relative to competitors is to compare the various product on some physical characteristics (size, weight etc.). The objective of this research is to know the product positioning of women’s beauty soap in Manado. This research uses descriptive type of research where it will investigate the product positioning of women beauty soap in Manado and the effect of the products to Manado’s women perception. The population in this research is the female students who are using beauty products in the environment of International Business Administration Program, Faculty of Economics and Business, Unsrat Manado. Samples taken are 40 respondents. The conclusion are: first Lux and Lervia brand percepting by respondents having similarity; second don’t have similarity perception of respondents; third Shinsui and Skin White have similar perception of the respondents, and the final one is Dove don’t have similarity with other brand of woman’s beauty soap products. Keywords: product positioning, beauty soap
Infinite‐horizon optimal control – Asymptotics and dissipativity

This note discusses the interplay between dissipativity and the asymptotics of continuous‐time infinite‐horizon optimal control problems. We focus on the results on convergence of optimal primal solutions derived in [6]. Moreover, we present a result on the attractivity of the infinite‐horizon optimal adjoint trajectories, which is closely related to transversality conditions for infinite‐horizon optimal control problems. Proofs and further results can be found in [6].
RECONVICTIONS OF DRINK/DRIVE COURSE ATTENDERS: A SIX YEAR FOLLOW UP

This report examines reconvictions of a sample of offenders convicted of a drink/drive offence at a number of 'designated' Courts between 1993 and July 1996. In the designated Courts it was in the remit of the Magistrate to offer a rehabilitation course to an offender, and if the course was successfully completed the period of disqualification would be reduced by up to a quarter. Data on reconvictions of course and non-course attenders are now available for at least six years for over 80 per cent of the sample. By six years over 99 per cent of the offenders should have their licence returned, and most will have been driving legally for at least a year. After six years just under two and a half times more non-course attenders than course attenders had committed a further drink/drive offence (17.9 per cent of non-course attenders compared with 7.6 per cent of course attenders). (A)
Managing Information Technology: What Managers Need to Know

From the Publisher: -X, MARTIN et al, Managing Information Technology: What Managers Need to Know, 3E*/ Providing an up-to-date treatment of information technology management that is not written for information systems professionals only, this widely used book prepares readers to be effective exploiters of computer/communications technologies now and in the future, and illustrates topics with over two dozen original information technology management case studies. Places 27 original, substantive, real-world information technology management case studies at the ends of Chapter 1 and the four major parts of the book (Information Technology, Applying Information Technology, Acquiring Information Systems, and The Information Management System) that illustrate a wide variety of key issues in information technology management. Focuses on the information technology resources (computers and microelectronics, networks, software, data, and people) that organizations provide and alternative approaches to managing them; the opportunities and pitfalls provided by these technologies; and what the user-manager, and the systems professional, need to know to make effective use of these technologies. Comes completely rewritten and reorganized for greater clarity and a more focused plan of approach, with updated and streamlined chapters, plus two new chapters on electronic commerce and the social, ethical, and political issues surrounding the use of information technology.
Fast neutron mutagenesis in soybean enriches for small indels and creates frameshift mutations

Abstract The mutagenic effects of ionizing radiation have been used for decades to create novel variants in experimental populations. Fast neutron (FN) bombardment as a mutagen has been especially widespread in plants, with extensive reports describing the induction of large structural variants, i.e., deletions, insertions, inversions, and translocations. However, the full spectrum of FN-induced mutations is poorly understood. We contrast small insertions and deletions (indels) observed in 27 soybean lines subject to FN irradiation with the standing indels identified in 107 diverse soybean lines. We use the same populations to contrast the nature and context (bases flanking a nucleotide change) of single-nucleotide variants. The accumulation of new single-nucleotide changes in FN lines is marginally higher than expected based on spontaneous mutation. In FN-treated lines and in standing variation, C→T transitions and the corresponding reverse complement G→A transitions are the most abundant and occur most frequently in a CpG local context. These data indicate that most SNPs identified in FN lines are likely derived from spontaneous de novo processes in generations following mutagenesis rather than from the FN irradiation mutagen. However, small indels in FN lines differ from standing variants. Short insertions, from 1 to 6 bp, are less abundant than in standing variation. Short deletions are more abundant and prone to induce frameshift mutations that should disrupt the structure and function of encoded proteins. These findings indicate that FN irradiation generates numerous small indels, increasing the abundance of loss-of-function mutations that impact single genes.
The 2020 Mw 6.0 Jiashi Earthquake: Coinvolvement of Thin-Skinned Thrusting and Basement Shortening in Shaping the Keping-Tage Fold-and-Thrust Belt in Southwestern Tian Shan

The Keping-tage fold-and-thrust belt in southwest Tian Shan is seismically active, yet the most well-recorded earthquakes occurred south of the mountain front. The lack of large earthquakes beneath the fold-and-thrust belt thus hinders our understanding of the orogenic process to the north. The 2020 Mw 6.0 Jiashi earthquake is an important event with surface deformation in the fold-and-thrust belt well illuminated by Interferometric Synthetic Aperture Radar, providing an opportunity to study the present-day kinematics of the thrust front through the analysis of satellite measurements of surface deformations. Here, we employ the surface deformation and relocated aftershocks to investigate the fault-slip distribution associated to this event. Further added by an analysis of Coulomb stress changes, we derive a fault model involving slips on a shallow, low-angle (∼10°) north-dipping thrust fault as well as on a left-lateral tear fault and a high-angle south-dipping reverse fault in mid-crust. Aftershocks at depth reflect the basement-involved shortening activated by a thin-skinned thrust faulting event. In addition, this earthquake uplifted the southernmost mountain front with relatively low topography, indicating the basin-ward propagation of the southwest Tian Shan.
Robust speed-controlled induction-motor drive using EKF and RLS estimators

An induction-motor (IM) speed drive, with the application of an extended Kalman filter (EKF) and a proposed recursive least-square (RLS) estimator, is introduced. The rotor resistance of the IM is identified by the EKF, and the rotor inertia constant, the damping constant and the disturbed load torque of the IM are estimated by the proposed RLS estimator, which is composed of an RLS estimator and a torque observer. The integral proportional (IP) speed controller is on-line, designed according to the estimated rotor parameters. Then the observed disturbance torque is fed forward to increase the robustness of the induction-motor speed drive.
Classical control of active pitch regulation of constant speed horizontal axis wind turbines

Owing to current concern over the environment, there is much interest in renewable sources of electrical power generation of which one of the most promising is wind power. However, it is not yet a mature technology and many basic issues have yet to be resolved. One such issue is the best means of regulating the wind turbines. Many horizontal axis grid-connected wind turbines have the capability to vary the angle of pitch of the blades which can be exploited to provide regulation. The purpose of this paper is to report on an extensive investigation into the control of active pitch regulation of constant speed, grid-connected horizontal axis wind turbines. The performance attainable by PI control design and classical Nyquist-Bode loop shaping is determined and compared
Editorial. Entangled Temporalities of Migration in the Western Balkans. Ethnographic Perspectives on (Im)-mobilities and Reception Governance

ABSTRACT After the official closure of the passage to the EU (March 2016), the Western Balkans have become an area of transit for migratory flows overland from the East and the South. This introductory editorial sets the stage of the special issue and presents the contents of the articles which aim at going beyond an understanding of the ‘refugee crisis’ as a generic external threat to the EU discussing its constructive, changing dimension and exploring the fluid nature of migration trajectories which are shaped by intersecting forms of mobilities and immobilities. Through the adoption of an ethnographic and diachronic perspective, the papers further aim to understand their entanglement with the 1990s memories of migration and therefore with the temporalities of mobility, while also considering the re-emergent securitization of border areas, especially after COVID-19 pandemic, and the ambivalent pushback and hospitality policies that also occur in the Balkan countries along the route.