Miracle-dz/UniFAR-FTUs huggingface dataset:
Innovative problem-oriented pedagogies in engineering education: Conceptualizations and management of tensions

van Barneveld, Evangelia. Ph.D., Purdue University, December 2011. Innovative Problem-Oriented Pedagogies in Engineering Education: Conceptualizations and Management of Tensions. Major Professor: Johannes Strobel. The demands on engineering educators are high and they are being challenged to create learning environments that not only teach technical skills better, but also incorporate process skills and foster other graduate attributes. Problem-based learning (and its variants) has been deemed to meet the needs of educators and society in preparing the engineers of the 21 century. But with pedagogical innovations like PBL, comfortable routines related to the structure and flow of classroom activity are disrupted for both educators and students. In addition to having to manage changes within their classroom processes and routines, engineering educators must also interact and operate within the larger systems in which their classrooms are embedded, the university. The structure and culture of the university system may facilitate or hinder the teaching intentions and goals of educators, as this larger system can impose its own set of tensions. The purpose of this qualitative study was to explore and describe the variation in engineering educators’ ways of experiencing tensions in PBL implementations, as well as how they managed the tensions. In the specific context of the first two years of undergraduate engineering education, the research questions were (1) based on their
Safety and Health Effects of Video Display Terminals

The prime focus of concern has been on work with visual display terminals (VDTs) as they tend to be referred to in the United States, or visual display units (VDUs) as they tend to be referred to abroad. The major sources of collected information on this topic had been an international conference entitled Work with Display Units (WWDU), and a study panel on visual problems of VDTs organized by the National Academy of Science. In addition, the Human Factors Society (now the Human Factors and Ergonomics Society) had just issued the first ergonomic standard on VDT workplaces. The primary concerns associated with VDT work were associated with the visual problems, levels of radiation, and concerns about pregnancy problems among female VDT operators. (The latter was presumably related to radiation issues.) The WWDU conferences now have become regular biannual events, along with a second series of conferences on human-computer interaction (HCI International). VDT-related research has comprised significant fractions of the regular scientific meetings of associated professional organizations such as the Human Factors and Ergonomics Society and the International Ergonomics Society. In addition, there have been numerous special purpose conferences devoted to VDT issues at both national and international levels. Concerns regarding radiation and pregnancy issues seem to have faded. At the WWDU 94 conference. Visual concerns, while still present, appear to have receded somewhat. Presumably this can be related to the significant increases in display quality of VDTs since 1989. However, these concerns have been replaced by the issues of work-related musculoskeletal disorders. Work-related musculoskeletal disorders (WMSDs) are the source of a great deal of attention and political controversy. Part of the controversy is related to labels, which have diagnostic and insurance implications: these disorders have also been referred to as Repetitive Strain Injuries (RSIs), Repetitive Motion Injuries (RMIs), and, more recently, Cumulative Trauma Disorders (CTDs). Although these disorders obviously encompass work environments other than offices, the number of office workers complaining of such disorders is large, and the potential risk factors associated with such disorders in office environments form a major portion of this chapter. In making this statement, however, it is important to also emphasize that WMSDs cannot be considered in isolation without also considering associated organizational, psychosocial, and visual factors. Hence, an integrated systems approach is essential. Issues of work-related musculoskeletal disorders are central to the subject matter of this chapter. Accordingly, WMSDs in general focuses on the specific case of WMSDs in the office are discussed. Keywords: Video display terminals; Musculoskeletal disorders; Air quality; Ecological framework; Means-end abstraction hierarchy; Applications; Visual display characteristics
Normal Hearing Sensitivity at Low to Middle Frequencies with ∼25% Prestin

Two mechanisms have been proposed for outer hair cell (OHC)‐mediated amplification in the mammalian cochlea: hair‐bundle motility and somatic, prestin‐based, motility. In cochlear mechanical modeling, different amounts of OHC‐motor activity should provide different degrees of feedback efficiency and gain of the amplifier at resonant frequencies. We created two novel knock‐in prestin mice with reduced quantities (∼25% and 50%) of prestin. OHCs from these mice exhibited length, non‐linear capacitance (NLC) and electromotility values intermediate between wild‐type and prestin knock‐out mice. Surprisingly, hearing sensitivity up to 22 kHz of knock‐in and wild‐type mice are similar, so ∼25% prestin is sufficient for normal hearing at these frequencies. In these mice in the mentioned frequency range, OHC NLC and electromotility do not correlate with in vivo gain of the cochlear amplifier as predicted by the feedback model of the OHC motor.
Coronaviruses and the Chemical Senses: Past, Present, and Future

A wealth of rapidly evolving reports suggests that olfaction and taste disturbances may be manifestations of the novel COVID-19 pandemic. While otolaryngological societies worldwide have started to consider chemosensory evaluation as a screening tool for COVID-19 infection, the true nature of the relationship between the changes in chemosensory ability and COVID-19 is unclear. Our goal with this review is to provide a brief overview of published and archived literature, as well as the anecdotal reports and social trends related to this topic up to April 29, 2020. We also aim to draw parallels between the clinical/chemosensory symptomology reported in association to past coronavirus pandemics (such as SARS and MERS) and the novel COVID-19. This review also highlights current evidence on persistent chemosensory disturbances after the infection has resolved. Overall, our analysis pinpoints the need for further studies: 1) to better quantify olfaction and taste disturbances associated with SARS-CoV-2 infection, compared to those of other viral and respiratory infections, 2) to understand the relation between smell, taste, and chemesthesis disturbances in COVID-19, and 3) to understand how persistent are these disturbances after the infection has resolved.
The Cost-Effectiveness of Military Training

Abstract : The use of flight simulators, computer-based instruction and maintenance training simulators for training is evaluated on the basis of their effectiveness and cost. Flight simulators are cost-effective, compared to the use of aircraft, for training; so are maintenance training simulators compared to actual equipment trainers. Computer-based instruction is as effective as conventional instruction; comparable cost data are not yet available, so one cannot say whether it is also cost-effective. These three methods of training are not more effective than the methods to which they were compared, except for small improvements in a few cases.
Sustaining healthcare excellence through performance measurement

The healthcare sector is one of the fastest growing areas of the economy of most developed countries. Governments (and taxpayers) invest in it increasingly larger amounts of money, either directly or indirectly, and expect in return high quality services. The reality, however, is often different: long waiting times, inefficiency, low productivity, stressed medical staff and less than satisfied patients. Over the last decade, total quality management (TQM) has emerged as one potential solution to improve the efficiency and effectiveness of healthcare provision and, ultimately, to lead to healthy communities. Despite the enthusiasm raised by the potential benefits of TQM implementation, the fact is that many initiatives have not delivered the promised results. Reasons for failure are to be essentially found in the insufficient support of health professionals, the lack of leadership commitment and the tendency to look at TQM in isolation rather than putting it at the core of the institution's strategy. The system of performance measurement we present in this paper is expected to overcome some of these deficiencies, contributing to sustaining the TQM efforts and, thus, to achieving organizational excellence. The main potential of the system comes from the explicit and active involvement of all stakeholders and from the holistic and integrated approach it forces.
Mechanical and Durability Properties of Mortars Incorporating Red Mud, Ground Granulated Blast Furnace Slag, and Electric Arc Furnace Dust

This research studies the properties of mortars incorporating waste materials including red mud (RM), ground granulated blast furnace slag (GGBFS), and electric arc furnace dust (EAFD). Ordinary Portland cement (OPC) was partially replaced with equal contents of RM, GGBFS, and EAFD at different ratios by weight (0, 5, 10, 15, 20, 30, 40, and 50%). Slump, compressive strength, splitting tensile strength, electrical resistivity, water absorption, resistance to freeze–thaw cycles, and durability under sodium sulphate and sulphuric acid attacks were investigated. Moreover, the microstructure of mortars cured in tap water and exposed to sulphuric acid was examined using scanning electron microscopy (SEM) and energy dispersive X-ray spectrometer (EDX). Cement replacement up to 20% led to a slight increase in compressive strength at 7, 28, and 120 days, while the results of durability tests showed that only up to 10% cement substitution could improve the durability of the mortar. A microstructural analysis showed that small waste grain portions in the matrix improved the whole mix density and the interfacial transition zone (ITZ) between aggregates and paste. The results of this study showed that there is an optimum replacement ratio of about 10%, beyond which the incorporation of these waste powders can cause degradation of concrete properties.
Visco-Elastohydrodynamic (VEHD) Lubrication in Radial Lip Seals: Part 1—Steady-State Dynamic Viscoelastic Seal Behavior

In general, most analyses of radial lip seal behavior assume a static deformation state in the seal lip. Nevertheless, a dynamic excitation of the seal lip always occurs in practice, due to unroundness of the shaft or motions of the shaft center. In this first part of a two part paper the influence of dynamic excitation on the occurrence of clearances in a dry seal-shaft contact is studied, taking into account viscoelasticity and inertia of the seal material. The ultimate goal is to determine whether viscoelastic seal behavior can result in a continuous fluid film or not. First, attention is paid to the mechanical behavior of synthetic rubber under an oscillating load. The seal elastomer shows a glass transition, resulting in a strong increase in stiffness with frequency. Next, a FEM analysis of the seal-shaft contact under dynamic conditions is presented. The steady-state response of the seal is represented by a transfer function approach. It is shown that clearances develop due to viscous and inertial seal material behavior. In practice, these clearances are filled with fluid. Due to entrainment and squeeze effects a fluid film is generated. This phenomenon is designated visco-elastohydrodynamic (VEHD) lubrication, and is subject of Part 2.
Investigating the psychology of green transportation via the green service profit chain

Abstract This work studies the effect of green satisfaction (GS), green word of mouth (GWOM), and green trust (GT) on green loyalty (GL) and the mediation effect of GWOM on green transportation (GTR). The objective of this research is to identify how to establish GL for GTR via the green service profit chain (GSPC) based on Heskett et al. (1994) and GT. This investigation applies structural equation modeling (SEM) to analyze the empirical results, and the findings indicate that GS and GT have positive influences on GL. On the other hand, it is verified that GS and GT positively affect GWOM, and GWOM also positively influences GL for users of YouBike. The overall influential effect of GS is higher than the overall effect of GT on GL (0·462>0·220). Therefore, GWOM has a mediation effect between GL, GT, and GS, and GS produces GWOM more powerfully than does GT. Finally, governmental institutions should strive to increase users’ GS, GWOM, and GT to enhance their GL to YouBike.
VIV of Flexible Cylinder in Oscillatory Flow

VIV in oscillatory flow is experimentally investigated in the ocean basin. The flexible test cylinder was forced to harmonically oscillate in various combinations of amplitude and period. VIV responses at cross flow direction are investigated using modal decomposition and wavelet transformation. The results show that VIV in oscillatory flow is quite different from that in steady flow; novel features such as ‘intermittent VIV’, amplitude modulation, mode transition are observed. Moreover, a VIV developing process including “Building-Up”, “Lock-In” and “Dying-Out” in oscillatory flow, is further proposed and analyzed. © 2013 ASME
Tata Kelola Distribusi Bantuan Logistik Korban Bencana Alam (Studi Empiris pada Bencana Banjir di Kabupaten Bojonegoro)

Abstract: The Logistic Management of Aid Distribution to Natural Disaster Survivors (Empirical Study of Flood Disaster at Kabupaten Bojonegoro). As informed by news in beritajatim.com, the survivors from overflow flood of Bengawan Solo River are forced to become street beggars. They are begging for donation to the users of Bojonegoro-Cepu Highway because governmental aids are not yet allocated to them. It is ironic because the stock of aids for disaster survivors is still adequate and stored prominently in BPBD of Kabupaten Bojonegoro. It may be caused by poor management of aid distribution during emergency. Good management of aid distribution during emergency requires coordination of all actors engaged within aid distribution mechanism. Besides coordinating the participant actors, aid distribution mechanism must also meet Operational Standards of Procedures (OSP). So far, distribution mechanism has complied with OSP and considered the functions of logistic management. Keywords: disaster management, logistic management, distribution mechanism Abstrak: Tata Kelola Distribusi Bantuan Logistik Korban Bencana Alam (Studi Empiris pada Bencana Banjir di Kabupaten Bojonegoro). Menurut berita yang dilansir oleh beritajatim.com, korban banjir luapan Sungai Bengawan Solo terpaksa meminta-minta kepada para pengguna jalan raya jurusan Bojonegoro-Cepu karena belum mendapatkan bantuan dari pemerintah, sedangkan persediaan barang bantuan untuk korban bencana yang berada di BPBD Kabupaten Bojonegoro masih mencukupi. Hal ini terjadi dikarenakan lemahnya tata kelola pendistribusian bantuan pada saat kondisi darurat. Pentingnya tata kelola pendistribusian bantuan pada saat kondisi darurat, menuntut adanya koordinasi dari berbagai aktor yang terlibat dalam mekanisme pendistribusian bantuan. Selain adanya koordinasi dari berbagai aktor tersebut, mekanisme pendistribusian bantuan juga harus memenuhi Standar Operasional Prosedur (SOP), dimana penyampaian dan penyaluran bantuan dapat terlaksana paling lambat 7 (tujuh) hari kerja setelah mendapat laporan. Penerapan mekanisme pendistribusian bantuan tersebut telah sesuai dengan SOP yang berlaku dan fungsi-fungsi manajemen logistik, namun juga terdapat kendala yang dapat menghambat mekanisme pendistribusian bantuan logistik. Kata Kunci: manajemen bencana, manajemen logistik, mekanisme pendistribusian
Challenges and opportunities for productivity improvement studies in linear, repetitive, and location-based scheduling

Despite theoretical advancements in alternative project planning methods the extent of their practical implementation varies strongly; it has been limited especially in the US construction industry. The family of linear, repetitive, and location-based scheduling techniques holds significant but barely substantiated promise by containing multiple variables of interest for integrated analysis and optimization. Yet it is necessary to provide empirical evidence that using such techniques can improve productivity to increase credibility and acceptance by practitioners, because claims of conceptual superiority are only sporadically supported with detailed measures. An analysis is performed to identify relevant decision-making variables, extract challenges that currently limit the corpus of quantitative productivity studies on alternative scheduling to its insufficient size, and reveal opportunities to expand it in breadth and depth. Variables are categorized by their relevance to time, activity, resource and location, as well as the managerial approach. Challenges include the diverse definitions of productivity itself, issues related to achieving generalizability, and the detailed steps of data collection, preparation, and analysis. Opportunities include the guidance from existing but rare studies and well-established research methods such as case studies that can be applied. This is illustrated with a sample project of a high-rise apartment building in Brazil. If alternative methods can be proven to be measurably better for specific applications, there might be a paradigm shift from merely defaulting to traditional but problematic network-based scheduling toward consciously choosing the planning method based on its potential benefits for a project.
Bamboo in building structures

• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website. • The final author version and the galley proof are versions of the publication after peer review. • The final published version features the final layout of the paper including the volume, issue and page numbers.
Broadband patch antenna with a T-shaped probe

A single-layered broadband patch antenna with a T-shaped feeding probe is studied experimentally. With a supporting foam substrate of thickness around 0.1 /spl lambda//sub 0/, a rectangular patch antenna with bandwidth (SWR/spl les/2) of 40%, and average gain of 7 dBi is designed. Such wideband and high gain performance is confirmed by simulation using Ensemble. Furthermore, by introducing a second identical T-probe, which is fed out of phase with the original probe, the cross-polarisation of the H-plane is reduced substantially. The patch antenna with 2 T-shaped probes also maintains an impedance bandwidth (SWR/spl les/2) of 41% and average gain of 6.5 dBi. Stable radiation patterns are observed across the passbands.
Study of the distribution properties and LRFD code conversion in Japanese larch.

This study was performed to develop an LRFD (Load Resistance Factored Design) Code for Domestic Larch. To accomplish his, we evaluated bending, compression, tension and shear strength. The results of the strength evaluation were utilized to verify the distribution and code conversion. For bending, tension and compressive strength, the Weibull distribution was well-fitted, but for shear strength we observed a normal distribution. For evaluating the bending and compressive strength, a full-sized specimen was used. A small clear specimen was used to test tension and shear strength. Compressive strength in particular was found to be affected by tight knots, although there was little difference between grades. In the code conversion, the design value of the LRFD was larger than the existing allowable stress value in the Korean Building Code. However, the allowable stress in this study was about two times higher than the value listed in the Korean Building Code. This result induced the difference between the soft and hard conversions. For greater reliability, the accumulation of additional data is necessary and further studies should be performed
Planning implications of telework: a policy analysis of the Sydney metropolitan strategy

The paper attempts to develop an understanding of the planning implications of telecommunication, with a focus on telework in the Australian context. It begins by reviewing major definitional discrepancies in telework studies and provides a definition for telework as a flexible knowledge-work option in the new economy. It then builds upon the growing interest in telework under the National Broadband Network (NBN) in federal policy documents in Australia and analyses the Metropolitan Plan for Sydney 2036 as the major document that shapes the future of Australia's first global city. This analysis identifies serious inconsistencies between federal and state policies and points out a number of policy gaps, regarding the lack of telecommunication awareness at Sydney's metropolitan level. The paper also reveals some opportunities in the current strategy to incorporate telecommunication in dealing with the major planning issues, thus challenging the future of Australia's largest capital city.
Field Validation of Laboratory-Predicted Low-Temperature Performance of Hot-Poured Crack Sealants

When properly installed, hot-poured crack sealants are widely accepted as a cost-effective, routine preventive maintenance practice that extends pavement service life by 3 to 5 years. However, current ASTM specifications for selection of crack sealants correlate poorly with field performance. Therefore, an improved sealant specification and selection system is urgently needed. Recently, performance-based guidelines were developed by the pooled-fund North American Consortium expert group for selecting hot-poured bituminous crack sealants. The work proposed a sealant grade system for selecting hot-poured crack sealant on the basis of environmental conditions. A special effort was made to use the equipment originally developed by SHRP, which was used to measure binder rheological behavior as part of the performance grade system. The equipment and testing procedures used for performance grading of binders were modified in accordance with crack sealant behavior. The main objective of this study was to validate the low-temperature selection thresholds for the newly developed performance-based guidelines for selecting hot-poured crack sealants. Thresholds for the crack sealant bending beam rheometer, crack sealant direct tension test, and crack sealant adhesion test were validated. Nine hot-poured crack sealants were installed in four test sites experiencing low temperatures. The field performance of crack sealants was evaluated for 2 consecutive years by detailed field surveys. The field database consisted of 40 sections containing 647 cracks. Overall, results showed good correlation between the proposed selection thresholds and sealant performance in the field.