Miracle-dz/UniFAR-FTUs huggingface dataset:
Impacts of Store Crowding on Shopping Behavior and Store Image

Abstract The perception of crowding and the shopping environment can influence consumers' decisions on where to shop as well as their buying decision and store image. The purpose of the study is to investigate the effects of store layout design and factors about the consumer on the perception of store crowding and in turn analyze the impact of perceived crowding on shopping behavior and store image. Surveys were conducted at two discount stores in Taipei City, Taiwan. A total of 532 questionnaires were used for analysis. Spatial crowding was assessed using physical area factors including floor layout designs, aisle table area, and ceiling height. Perceptions of crowding resulted from the spatial arrangement, while human crowding contributed to the feeling of overall store crowding. Among a store's physical area factors, aisle table area most strongly impacts the overall degree of perceived store crowding, followed by free-flow layout and grid layout areas. Among various individual factors, age and prior experience of crowding are significantly related to perceived crowding. The results showed that perceptions of spatial crowding had a negative relationship to promotional image while perceptions of human crowding had a positive relationship to discount store image.
Prediction of Instability and Mechanism of Multi-Factor Comprehensive Action on Mine Goaf

In allusion to phenomenon of large instability of underground goaf, research is carried on prediction of instability and mechanism of multi-factor comprehensive action. Firstly, according to large number of examples of instability disaster in mines at home and abroad, influence factors of goaf stability was analyzed, including characteristics of surrounding rock, conditions of engineering geology, engineering properties, structure parameters of goaf and other artificial mining and time etc; then, using BP neural network to establish the comprehensive function matrix RSE, and putting forward a prediction index Fi, this index can be real-time tracking on the actual change conditions of surrounding rock scene in mining goaf, showing the comprehensive action results of each factor on steady state of underground goaf engineering system; finally, on the basis of 36 samples, the stable value and interval value of the corresponding multi-factor comprehensive action index Fi can be obtained after calculation by using comprehensive function matrix RSE. An actual example showed that, value of multi-factor comprehensive action index Fi was-0.8159 in goaf of an iron mine, which was in instability state.
An improved model for the cost of quality

Purpose – The purpose of this study is to present a report on the development of an improved mathematical model for quantifying the cost of quality. In addition, a simulation model is developed using real-life industrial data; the model is used to investigate the impact of certain quality control level plans on cost of quality. Design/methodology/approach – The cost of the quality model was developed based on the reported literature and suggestion from the company quality control manager. An extensive discussion was conducted with the quality control supervisors in the company to develop some quality control plans to investigate their impact on cost of quality. A simulation model that represents a specific section of the process at the company was used to carry out the investigation. The results were analysed and compared with some important findings reported in the literature that describe the characteristics of costs of quality. Findings – The simulation work provides valuable insights into the behavior.
Pengaruh Model Pembelajaran Problem Posing Berbantuan Media Semi Konkret terhadap Kompetensi Pengetahuan Matematika

Penilitian ini bertujuan untuk mengetahui perbedaan yang signifikan kompetensi pengetahuan matematika antara kelompok yang dibelajarkan melalui model pembelajaran problem posing berbantuan media semi konkret dengan kelompok siswa yang dibelajarkan melalui pembelajaran konvensional pada siswa kelas V SD Gugus Kapten Kompyang Sujana Tahun Ajaran 2018/2019. Jenis penelitian yang digunakan yaitu eksperimen semu dengan desain nonequivalent control group design. Populasi penelitian meliputi seluruh kelas V SD Gugus Kapten Kompyang Sujana Denpasar Barat pada semester genap sebanyak 643 siswa. Sampel penelitian ditentukan dengan teknik simple random sampling. Sampel dalam penelitian ini adalah kelas V A SD Negeri 8 Padangsambian sebanyak 49 siswa sebagai kelompok eksperimen dan kelas V A SD Negeri 2 Padangsambian sebanyak 44 siswa sebagai kelompok kontrol. Metode pengumpulan data dalam penelitian ini adalah metode tes pilihan ganda biasa. Berdasarkan hasil analisis data, diperoleh thitung = 3,005 dan ttabel pada taraf signifikansi 5%, (α= 2,000. Hal ini berarti thitung > ttabel sehingga dapat diinterprestasikan bahwa terdapat perbedaan yang signifikan kompotensi pengetahuan matematika antara kelompok siswa yang dibelajarkan melalui model pembelajaran problem posing berbantuan media semi konkret dengan kelompok siswa yang dibelajarkan melalui pembelajaran konvensional. Dengan demikian dapat disimpulkan bahwa model pembelajaran problem posing berbantuan media semi konkret berpengaruh terhadap kompetensi pengetahuan matematika siswa kelas V SD Gugus Kapten Kompyang Sujana Denpasar Barat Tahun Ajaran 2018/2019.Kata Kunci: Problem Posing, Semi Konkret, Matematika
PHYTOCHEMICALS AND INHIBITIVE PROPERTIES OF CASHEW EXTRACT AS CORROSION INHIBITOR OF ALUMINIUM IN H2SO4 MEDIUM

This work studied the phytochemicals and inhibitive properties of cashew extract as corrosion inhibitor of aluminium in H2SO4 medium. Qualitative and quantitative analyses of the cashew extract were carried out to identify and quantify the phytochemicals for the corrosion inhibition process. Thermometric and gravimetric techniques were employed in the study of corrosion inhibition of aluminium in H2SO4 medium. The inhibition efficiency of the cashew extract was modeled using Response Surface Methodology (RSM) of Design Expert Software 9. It was revealed that phytochemicals of alkaloids, cardiac glycosides, flavonoids, phenolics, phytates, saponins and tanins were present in the cashew extract at various degrees. The cashew extract is predominantly made of flavonoids (425.0mg/100g) followed by alkaloids (221.7mg/100g). Adsorption of the cashew extract on the Al surface obeyed physical adsorption mechanism. Thermometric and gravimetric techniques are in agreement of recording high inhibition efficiencies of 83.7% and 82.5% respectively. The phytochemicals of the cashew extract are good inhibitive agents for the corrosion control process. A quadratic model is adequate for the description of the inhibition efficiency of the cashew extract as a function of inhibitor concentration, temperature and time.
Truck Acceleration Speeds and Distances at Weigh Stations

Tractor-trailer trucks accelerating on freeway entry ramps and entering the main traffic lanes require greater lengths to accelerate than do passenger vehicles. As freeway volumes have grown over the decades, entry ramp junction designs that were once adequate now experience congestion at weigh stations and other locations where higher volumes of trucks enter the freeway. The acceleration lengths and speeds of tractor-trailers accelerating onto freeways were measured at five vehicle weigh stations. Other data obtained and analyzed included truck weights, freeway volumes, and freeway grades. Models were developed to predict tractor-trailer speed over given acceleration lengths. From the analysis, it was concluded that longer acceleration lanes were needed for heavy vehicles leaving weigh stations to accelerate to speeds closer to the speeds on the main lanes and to be less disruptive to freeway traffic flow as the heavy vehicles merge into the main lanes. The findings also have implications for establishing the location of weigh stations, the spacing of freeway interchanges, and the setting of freeway speed limits.
Fault Severity Estimation of Rotating Machinery Based on Residual Signals

Fault severity estimation is an important part of a condition-based maintenance system, which can monitor the performance of an operation machine and enhance its level of safety. In this paper, a novel method based on statistical property and residual signals is developed for estimating the fault severity of rotating machinery. The fast Fourier transformation (FFT) is applied to extract the so-called multifrequency-band energy (MFBE) from the vibration signals of rotating machinery with different fault severity levels in the first stage. Usually these features of the working conditions with different fault sensitivities are different. Therefore a sensitive features-selecting algorithm is defined to construct the feature matrix and calculate the statistic parameter (mean) in the second stage. In the last stage, the residual signals computed by the zero space vector are used to estimate the fault severity. Simulation and experimental results reveal that the proposed method based on statistics and residual signals is effective and feasible for estimating the severity of a rotating machine fault.
Changing culture : new organizational approaches

Personnel professionalism requires directors and managers to keep fully abreast of current business strategy; this series aims to provide the tools for them to make a full contribution to organisational success. First published in 1989, this book draws on wide-ranging research and the experiences of companies like Abbey National, BP Chemicals and Rank Xerox to reveal how culture change can help drive through significant improvements in performance, efficiency and profitability. Strategic thinking is vital, but the core personnel skills - appraisal, communication, renumeration and training - also play a key role. This edition explains just why culture remains crucial and includes up-to-date case studies from The Royal Mail, McVitie's, Exxon UK and James Cropper plc.
Seismic Code Analysis of Buildings without Locating Centers of Rigidity

financial hardship on the small community served by this building. Retrofit of the tower consisted mainly in anchoring it to the adjacent floors of the main building. Clearly, rehabilitation of the tower fell outside the standardized seismic strengthening procedures of the UCBC. Not surprisingly, the tower collapsed during the Northridge earthquake. The remaining, more regular part of the structure survived. Damage to a building of such historical value and beauty is particularly sad, but this emphasizes that the indiscriminate application of a special procedure to heritage structures may not always ensure a seismic performance that meets stringent preservation goals.
Vertical Ground Motion Model for PGA, PGV, and Linear Response Spectra Using the NGA-West2 Database

We summarize the development of the NGA-West2 Bozorgnia-Campbell empirical ground motion model (GMM) for the vertical components of peak ground acceleration (PGA), peak ground velocity (PGV), and 5%-damped elastic pseudo-absolute acceleration response spectra (PSA) at vertical periods ranging from 0.01 s to 10 s. In the development of the vertical GMM, similar to our 2014 horizontal GMM, we used the extensive PEER NGA-West2 worldwide database. We consider our new vertical GMM to be valid for shallow crustal earthquakes in active tectonic regions for magnitudes ranging from 3.3 to 7.5–8.5, depending on the style of faulting, and for distances as far as 300 km from the fault.
Analysis of the quality attributes used in establishing best value tenders in the UK social housing sector

Purpose – A number of studies have highlighted the problems and challenges that have been encountered with the analysis of best value and partnering tenders carried out in the UK public sector. One of the principal issues is that client organisations and decision makers have to assess numerous diverse quality attributes as part of the contractor selection process. The purpose of this paper is to present the findings of research, which aimed to identify the core factors, which could be used to differentiate bids in the context of social housing.Design/methodology/approach – A questionnaire was sent to a cross‐section of stakeholders within the social housing sector asking the respondents to rank the importance of 35 attributes with respect to selecting a successful contractor. The responses were subjected to principal component analysis to detect a structure in the relationship between the attributes and classify the attributes into a set of factors.Findings – The results indicate that the 35 attributes co.
Impact Toughness of Kenaf Powder, Polypropylene and Kevlar

mpact and tensile properties were carried out on Kenaf Powder (K) Polypropylene (PP) reinforced with Kevlar (KV) composites plate prepared in-house using hot press technique. The effect of bonding agent, Maleic Anhydride grafted Polypropylene (MAPP), on the strength and impact toughness was also conducted. The size of kenaf powder used was limited to 100μm. The kenaf/polypropylene composite designated as KPP specimens were tested through tensile test (ASTM D 638) and izod test (ASTM D256) for 20-40% weight ratio of kenaf powder. The optimum weight ratio of KPP sample was selected and then underwent for the drop impact testing. The selected KPP sample was further reinforced with Kevlar cloths. This hybrid composite is designated as KPP/KV sample and further tested in izod impact and drop tests. The impact toughness of KPP reinforced with KV is almost 4-6 times without KV. There are also slight improvements in the impact toughness of the KPP/KV samples with MAPP.
Efficient Stator Design for Automotive Engine Cooling Fan Systems

This paper deals with stator efficiency improvement meant for automotive engine cooling fan systems. Four stators designed for a Valeo 380 mm rotor were manufactured and tested on a newly designed Valeo-Lemfi test rig. The following points are presented: • Overall performances of the 380 mm rotor. • Overall performances of the 380 mm rotor combined with a short chord stator. Inefficiency of such a design is shown: Slight deflection carried out by the stator is the cause of the slight gain of efficiency. • Overall performances of the 380 mm rotor combined to three long chord stators: this study confirms the gain of efficiency foreseen previously with the simplified radial equilibrium code VENTAX. • Steady velocities measured 33 mm downstream the various stage configurations: These measurements obtained by using a 5-holes probe show high deflection carried out by the long chord stators.Copyright © 2002 by ASME
Transform-limited, femtosecond WDM pulse generation by spectral filtering of gigahertz supercontinuum

0.25 – 0.67 ps optical pulses with time-bandwidth products of 0.11 – 0.14 are generated at 6.3 GHz over 1530 – 1562 nm by spectrally filtering the chirp-compensated supercontinuum generated by 2.5 ps Er3+-doped fibre laser pulses. The proposed scheme features a multiwavelength GHz output over a continuous wavelength range, and offers a wide variety of applications in ultrafast all-optical TDM/WDM networks.
UPLCMS/MS-based Untargeted Metabolic Profiling Reveals Changes in the Plumbago auriculata Lam. Metabolome Following Heteromorphic Incompatibility System Interactions

Background Heteromorphic self-incompatibility (HetSI), which is regulated by gametophytes, occurs in some species as a strategy to promote cross-pollination. Studies on HetSI are rare, and there is little evidence to establish the mechanism of HetSI. This research aimed to reveal metabolic changes occurring in HetSI. We used fluorescence microscopy as a tool to compare growth behavior in self-incompatible (SI) and self-compatible (SC) pollination in both pin and thrum flowers of Plumbago auriculata and to identify the ideal timepoint for sample collection for subsequent experiments. We also employed environmental scanning electron microscopy (ESEM) to evaluate intermorph structural differences in the pollen grain and stigmas in relation to heteromorphic self-incompatibility. Importantly, UPLC-MS/MS was applied in this study to identify metabolites, compare metabolic differences between pin and thrum styles and monitor metabolic changes in styles and SC and SI pollinations in the two type of flowers. Results The metabolites mainly included amino acids, flavonoids, glycosides/sugars, phenols, other organic acids, fatty acids/lipids, amines and alcohols. Surprisingly, high-energy nutrients such as amino acids, flavonoids, phenols alcohols and tricarboxylic acid cycle-related metabolites were found at higher levels in SI pollinations than in SC pollinations. Conclusion This result indicates that physiological changes in pollen-stigma interactions are different in pin, thrum styles and SC, SI pollinations and that energy deficiency may not be one of the reasons for HetSI.
The controlling of microlens contour by adjusting developing time in the thermal reflow method

As one of widely used microlens fabrication techniques, thermal reflow method has many advantages such as simple fabrication process, low price, and good smoothness of the microlens. However, it is difficult to predict and control the final microlens contour after melting process. In this paper, we pay our attention on searching a method to control the microlens contour. The relationship between microlens contour and developing time is studied by experiments in the case of insufficient developing. When the developing time is not sufficient, some of the photoresist will be left on the substrate. In that case, the contact angle of microlens, which decided by the ratio of microlens aperture on its curvature radius, is smaller comparing with the case of completely development. The experimental results indicate that different developing time will result in different contact angle of the microlens after the melting process. Therefore, it is enables to control microlens contour by adjusting developing time. The experimental results also indicate that the degree of microlens contour deviate from ideal spherical is related to developing time. These results are valuable for us to fabricate the microlens which has expected geometrical shape.
Experimental Investigation on the Flexural Behaviour of Patched Reinforced Concrete with Unsaturated Polyester Resin Mortar

This research is aimed to investigate the flexural behaviour of patched reinforced concrete beam with patching material made from unsaturated polyester resin mortar. The variable studied is the dimension of patching zone as compared to the control beam (without patching). Based on the load-deflection observation of the beam under a four-point bending loading, it is confirmed that the flexural behaviour of the patched reinforced concrete beam is similar to that of control beam at a loading up to about peak load. After this load the patched reinforced concrete beam tends to behave more ductile. The patched reinforced concrete beam show less cracking density compared to control concrete.
Structural Analysis and Test Comparison of a 20-Meter Inflation-Deployed Solar Sail

Under the direction of the NASA In-Space Propulsion Technology Office, the team of L Garde, NASA Jet Propulsion Laboratory, Ball Aerospace, and NASA Langley Research Center has been developing a scalable solar sail configuration to address NASA s future space propulsion needs. Prior to a flight experiment of a full-scale solar sail, a comprehensive test program was implemented to advance the technology readiness level of the solar sail design. These tests consisted of solar sail component, subsystem, and sub-scale system ground tests that simulated the aspects of the space environment such as vacuum and thermal conditions. In July 2005, a 20-m four-quadrant solar sail system test article was tested in the NASA Glenn Research Center s Space Power Facility to measure its static and dynamic structural responses. Key to the maturation of solar sail technology is the development of validated finite element analysis (FEA) models that can be used for design and analysis of solar sails. A major objective of the program was to utilize the test data to validate the FEA models simulating the solar sail ground tests. The FEA software, ABAQUS, was used to perform the structural analyses to simulate the ground tests performed on the 20-m solar sail test article. This paper presents the details of the FEA modeling, the structural analyses simulating the ground tests, and a comparison of the pretest and post-test analysis predictions with the ground test results for the 20-m solar sail system test article. The structural responses that are compared in the paper include load-deflection curves and natural frequencies for the beam structural assembly and static shape, natural frequencies, and mode shapes for the solar sail membrane. The analysis predictions were in reasonable agreement with the test data. Factors that precluded better correlation of the analyses and the tests were unmeasured initial conditions in the test set-up.
National culture and perceptions of success and failure in projects

This study examines how national cultural perspectives impact on the perceptions of project practitioners. It aims to contribute to understanding of how project practitioners perceive success and failure and, how they make wider project decisions. Data from 707 practitioners were analysed using exploratory data analysis and structural equation modelling. National culture and cultural exposure were found to impact on the level of importance that practitioners assign to individual project success and failure factors. It was also found that the dominant culture in the country of residence influences how project success and project failure are perceived. The originality and value of this study are that it undertakes a simultaneous analysis of inter-related project success and project failure factors.
Ultimate strength of steel plates with a single circular hole under axial compressive loading along short edges

Abstract The aim of the present study is to investigate the ultimate strength characteristics of steel plates with a single circular hole under axial compressive loading along short edges, which is a primary action type arising from vertical or horizontal hull girder bending moments of ships and ship-shaped offshore structures. The plates are considered to be simply supported along all (four) edges and kept straight. The circular hole is located at the center of the plate. A series of ANSYS nonlinear finite element analyses (FEA) are undertaken with varying the hole size (diameter) as well as plate dimensions (plate aspect ratio and thickness). By regression analysis of the FEA results obtained, a closed-form empirical formula for the ultimate longitudinal compressive strength of perforated plates, which can be useful for first-cut strength estimations and reliability analyses, is derived. The accuracy of the ultimate strength formula developed is verified by a comparison with more refined nonlinear FEA results.
Design and Construction of a Simple 3D Straight-Legged Passive Walker with Flat Feet and Ankle Springs

To date, most passive walkers have been designed with arc-shaped feet rigidly attached to the legs. However, the friction torque against yaw is often insufficient because of their contact conditions with the ground. We developed a simple 3D straight-legged passive walker with flat feet and ankle springs. Flat feet were used to gain enough scrubbing friction to oppose unstable yaw motion. Springs were attached to the ankle to produce torque resulting in roll and pitch motions that mimic those of 3D passive walkers with arc-shaped feet, while the friction torque against yaw should be sufficient. The spring constant for the roll motion at the stance ankle is obviously an important factor in enabling the straight-legged robot to rock adequately from side to side to avoid problematic scuffing of the swing leg so it can swing forward. We used numerical simulations to determine the value of the spring constant. Experimental results indicated that our 3D straight-legged passive walker with a 0.77-m leg can walk more than 2 m at about 0.46 m/s.