Miracle-dz/UniFAR-FTUs huggingface dataset:
ELEMENTS OF WAREHOUSE LAYOUT

SUMMARY The work summarised in this paper has been directed to examine the basic requirements of warehouse layouts. Two simple types of layout have been examined and equations derived for the dimensioning of these, given such information as total volume of stock and number of stock lines. A sketch of the layouts is given. Ten factors have been considered in arriving at the theoretical layouts and it is shown that different types of layout are affected by different factors, some layouts being independent of factors to which others are sensitive. Dimensions of a layout can be calculated to minimise handling distance, handling time or space utilisation. Where cost functions are available for these parameters, total cost can also be minimised. The formulae lend themselves readily to computer manipulation, enabling an optimum layout to be determined given only the number of stock lines and volumes stored.
Perceptions of EFL Intermediate Students Toward Authentic Material: A Comparative Study of Two Colleges of Quetta, Balochistan

This study intends to investigate the perceptions of EFL college students toward the use of the authentic material in EFL classroom. A total of 311college students in which 160boys and 151 girls students participated from two public colleges of Quetta, Balochistan province of Pakistan. The researcher employed quantitative research design to answer two research questions of the study. The quantitative data was obtained through the survey questionnaire. Initially, to respond to the first research question of the study, descriptive statistics was performed in SPSS, and to answer the second research question,independent simplest-test was also run in SPSS to check thestatistical significant difference between boys and girls college students. The findings revealed that college students showed positive response towards the use of the authentic material in the EFL classroom. In addition, the results of independent samples t-test showed the boys’ college students emphasized more use of authentic material than girls’ students. These findings have implications for both curriculum designers and English language teaching in the Pakistani context.
An analytical model for determining carrier transport mechanism of polysilicon emitter bipolar transistors

An analytical model is proposed by including carrier transport mechanisms which previous unified analytical models do not consider: minority carrier combination at both sides of polysilicon-silicon interfacial oxides and thermionic emission over segregation potential barriers for determining the precise carrier transport mechanisms which govern current gain and specific emitter interfacial resistivity. This approach allows us to gain an insight into carrier transport mechanisms and provides a distinct image for polysilicon emitter bipolar devices. With the consideration of the interfacial capture cross section as a function of temperature, the dependence of current gain for devices given an HF etch prior to polysilicon deposition on temperature is first explained successfully. For improving device performance, some directive suggestions are presented. >
Single event upset and latchup measurements in avionics devices using the WNR neutron beam and a new neutron-induced latchup model

Microelectronic devices used in avionics were tested in the WNR beam, simulating atmospheric neutrons. The SEU upset rates for ARINC 429 receivers agree with rates in memories, and neutron-induced latchup was measured in the LCA100 K and 200 K gate arrays and compared against a new neutron-induced latchup model.
STRATEGIC MANAGEMENT OF NAVY R&D LABORATORIES: AN APPLICATION OF COMPLEXITY THEORY DIRECTOR OF NAVY LABORATORIES CASE STUDY

As part of an on-going process of centralizing control of government science and technology (S&T) after World War II, in 1966 the Navy went through a major reorganization that was intended to centralize the strategic management of the Navy laboratory system. This centralization was to be accomplished by placing the major Navy research and development activities in a single systems command – the Naval Material Command and establishing the position of Director of Navy Laboratories. Organizational studies and reorganizations continued for the next 25 years until the Naval Material Command and the Director of Navy Laboratories were disestablished in 1985 and 1991, respectively. This dissertation is, in part, an historical study of the Navy from 1946 to 1966 that focuses on the bureaus and laboratories. It summarizes the organizational changes related to strategic management and planning of science and technology. The 1966 reorganization was a critical event because it created the first formal Navy laboratory system. It is proposed that the 1966 reorganization was not successful in centralizing the strategic management of the Navy laboratory system. Classical organization theory offers an explanation of this failure. What can complexity theory add? The overarching contribution is in recognizing that a "Navy Laboratory System" existed before one was formally established in 1966. This argument is developed by considering two specific aspects of complexity theory.
The Development of KPS Based Practicum Module for Physics Subject to Improve Student’s Reporting Skills

This study aims to develop a physics practicum module based on Science Process Skills, which improves students' reporting skills. The type of research used is called R&D or research and development methods that refer to the 4-D model with the following stages: Define, Design, Develop and Disseminate. The data collection technique used a questionnaire. The data was delivered descriptively to analyze the feasibility of the developed practicum module and an assessment rubric for student practicum reports to determine the improvement in students' reporting skills. Validation questionnaires were given to Content experts and media design experts, while field trial questionnaires were given to physics teacher colleagues and students. The validation results of content experts and media design experts are classified in the "feasible" criteria by obtaining a score of 3.85 for Content expert validation and 3.56 for media design expert validation. Moreover, the results of the development trial received a score of 3.81 from peer validation which was classified in the "feasible" criteria. The student responses obtained a score of 3.82, which was classified in the "interesting" criteria. The results of the n-gain test have received a value of 0.63, which was classified in the "fair" criteria. Based on these data, the researcher concluded that the developed KPS-based physics practicum module is feasible and can improve students' reporting skills.
First Results after Implantation of Hydrophilic and Hydrophobic Trifocal Intraocular Lenses: Visual and Optical Performance

Purpose To compare postcataract surgery visual and optical performance between two trifocal intraocular lenses (IOLs) with the same optical design: a hydrophobic acrylic glistening-free IOL and a hydrophilic acrylic IOL. Methods Patients were bilaterally implanted with either the hydrophobic or the hydrophilic IOL. The data of the patients' right eyes were evaluated. Visual quality assessments included refractive outcomes, monocular visual acuity (VA) at far, intermediate, and near distances, defocus curve, aberrations (spherical aberration (SA)), root mean square (RMS) of corneal, internal, and total higher-order aberrations (HOAs)), and tilt of IOL. Results Fifty-one patients were included in the analysis: 26 patients implanted with the hydrophobic IOL and 25 patients implanted with the hydrophilic IOL. At 1 month, no statistically significant differences were found for monocular uncorrected and corrected VA at distance, distance-corrected VA at intermediate and near, defocus curve, manifest spherical equivalent, total SA, and RMS of the total, internal, and corneal HOA. The defocus curve of both groups showed a visual acuity of 0.3 logMAR or better in the intermediate range from 0.5 to −2.5 D of vergence level with no significant differences between the groups. Compared to the hydrophilic group, y-direction tilt was significantly higher in the hydrophobic group (p=0.027). The total tilt and x-axis tilt did not differ between the groups. Conclusion Both IOLs demonstrated an excellent quality of vision and provided the patient with a wide range of vision.
Data in the Educational and Social Sciences: It’s Time for Some Respect

This article introduces the concept of the carrying capacity of data (CCD), defined as an integrated, evaluative judgment of the credibility of specific data-based inferences, informed by quantitative and qualitative analyses, leavened by experience. The sequential process of evaluating the CCD is represented schematically by a framework that can guide data analysis and statistical inference, as well as pedagogy. Aspects of each phase are illustrated with examples. A key initial activity in empirical work is data scrutiny, comprising consideration of data provenance and characteristics, as well as data limitations in light of the context and purpose of the study. Relevant auxiliary information can contribute to evaluating the CCD, as can sensitivity analyses conducted at the modeling stage. It is argued that early courses in statistical methods, and the textbooks they rely on, typically give little emphasis to, or omit entirely, discussion of the importance of data scrutiny in scientific research. This inattention and lack of guided, practical experience leaves students unprepared for the real world of empirical studies. Instructors should both cultivate in their students a true respect for data and engage them in authentic empirical research involving real data, rather than the context-free data to which they are usually exposed.
Influence of Intersection Geometrics on the Operation of Triple Left-Turn Lanes

Triple left-turn lanes have been used to reduce vehicle delays, queue lengths, and left-turn storage bays at signalized intersections with relatively higher left-turn demand. Limited research has been conducted to study capacity issues and how they relate to various geometric configurations of triple left-turn lanes. This study analyzed the influence of a number of geometric factors found at 15 triple left-turn lane sites in Florida on saturation flow, lane usage, and lane utilization. A total of 2,395 lane cycles and 38,023 vehicles were observed. The observed saturation flows yielded a mean saturation flow of 1,859 vehicles per hour of green per lane (vphgpl) with the 95% confidence interval of 1,810–1,907 vphgpl. The analysis of variance (ANOVA) test was used to determine statistical significance of the variables’ influence on saturation flows. In addition, multivariate analysis of variance (MANOVA) was conducted to determine the influence of interaction of variables. The results showed that triple lef.
The Effect of Smoking on Salivary Calcium Levels, Calcium Intake, and Bleeding on Probing in Female

Introduction Smoking is a bad habit that affects both systemic and oral conditions. Nicotine in cigarettes reduces estrogen production that can alter salivary calcium levels. Nicotine also causes vasoconstriction of the gingival blood vessels and decreases gingival bleeding. Low dietary calcium intake is also suspected to influence the low serum calcium levels in smokers. In this study, we evaluated the effect of smoking on salivary calcium levels, calcium intake, and BOP in women. Method This was an analytical study using a cross-sectional approach. The subjects were 26 female smokers and 37 nonsmokers. Unstimulated saliva was collected by the spitting method. Salivary calcium levels were measured using an Atomic Absorption Spectrophotometer (AAS). The calcium intake was obtained by the Semiquantitative Food Frequency Questionnaire. BOP was measured by a gingival bleeding index by Ainamo and Bay in 1975. Results All the basic characteristics including age, BMI, level of education, and occupation were statistically different between groups. The mean calcium level of female smokers was significantly lower than that of nonsmokers, whereas the mean BOP of female smokers was significantly higher. The total calcium intake per day of the two groups was not statistically different. The mean salivary calcium level and BOP decreased when the duration of smoking was longer. There was a positive correlation between salivary calcium level and BOP in the smokers' group. Conclusion A low level of education may be contributing to the smoking habit of subjects in this study. Salivary calcium levels were correlated with BOP in female smokers, which might be affected by the duration of smoking.
Pump to signal RIN transfer in Raman fiber amplifiers

We present an analytical model and measurements of the pump to signal relative intensity noise (RIN) transfer characteristics of copumped and counterpumped Raman amplifiers. We give a quantitative analysis of noise averaging from chromatic dispersion in copumped systems and from different propagation directions in counterpumped systems. It is shown that nondispersion-shifted fibers and other fibers with high dispersion between the signal and pump wavelengths give a greater potential for use in copumped Raman amplified systems.
Ataxin-2, Twenty-four, and Dicer-2 are components of a noncanonical cytoplasmic polyadenylation complex

Identification of components of a noncanonical cytoplasmic polyadenylation machinery in Drosophila expands the diversity of RNA-binding proteins involved in poly(A) tail length control. Cytoplasmic polyadenylation is a mechanism to promote mRNA translation in a wide variety of biological contexts. A canonical complex centered around the conserved RNA-binding protein family CPEB has been shown to be responsible for this process. We have previously reported evidence for an alternative noncanonical, CPEB-independent complex in Drosophila, of which the RNA-interference factor Dicer-2 is a component. Here, we investigate Dicer-2 mRNA targets and protein cofactors in cytoplasmic polyadenylation. Using RIP-Seq analysis, we identify hundreds of potential Dicer-2 target transcripts, ∼60% of which were previously found as targets of the cytoplasmic poly(A) polymerase Wispy, suggesting widespread roles of Dicer-2 in cytoplasmic polyadenylation. Large-scale immunoprecipitation revealed Ataxin-2 and Twenty-four among the high-confidence interactors of Dicer-2. Complex analyses indicated that both factors form an RNA-independent complex with Dicer-2 and mediate interactions of Dicer-2 with Wispy. Functional poly(A)-test analyses showed that Twenty-four and Ataxin-2 are required for cytoplasmic polyadenylation of a subset of Dicer-2 targets. Our results reveal components of a novel cytoplasmic polyadenylation complex that operates during Drosophila early embryogenesis.
The Influence of Trust on Crowd Logistics Enterprise's Operational Performance: A SEM-PLS Model

With the development of information communication and satellite positioning, crowd logistics has gradually emerged as a popular urban distribution mode for logistics enterprises. Trust and synergy between the crowd workers and the crowd logistics enterprises have become key issues in urban logistics development. Based on commitment-trust theory and logistics synergy, this paper developed a theoretical model exploring ability trust, goodwill trust, logistics synergy, and crowd logistics operational performance. We used SmartPLS software to analyze the questionnaire survey from 50 senior managers in crowd logistics enterprises. The results show that ability trust has a significant positive impact on logistics synergy and operational performance. Logistics synergy was also found to increase the operational performance of crowd logistics enterprises and plays a mediating role in the impact of ability trust and goodwill trust on operational performance. We recommend that logistics enterprises evaluate their crowd workers’ service abilities, promote trust relationships with them, strengthen the construction of crowd logistics mechanisms, and invest in crowd worker training and development.
Effect of Biomass Burning on PM2.5 Composition and Secondary Aerosol Formation During Post‐Monsoon and Winter Haze Episodes in Delhi

Delhi metropolitan area suffers from extreme haze during the post‐monsoon and winter season, impacting climate, public health, and economy. We used a high‐resolution time‐of‐flight aerosol mass spectrometer (HR‐ToF‐AMS) and aethalometer at two urban locations in Delhi to capture non‐refractory PM2.5 (NR‐PM2.5) and black carbon (BC) during the post‐monsoon and winter season of 2019–2020. Four haze periods with high composition based‐PM2.5 (C‐PM2.5 = NR‐PM2.5 + BC) concentration and distinct chemical composition were identified, during all of which organics dominated but with varying contribution (∼[50%–70%] of C‐PM2.5). Biomass burning organic aerosol (BBOA) was dominant in all periods (∼[31%–45%] of OA), but the majority of it was highly aged ∼(45%–50%) with high O/C (0.71 and 0.46 at the two sites), formed most likely through rapid dark oxidation of freshly emitted and partially oxidized BBOA. High polycyclic aromatic hydrocarbons (PAH) signals in the fresh BBOA mass spectra suggest incomplete combustion activities such as open biomass burning emissions as major source. During an agricultural burning event in north‐western India, we estimated that ∼(44%–53%) of total C‐PM2.5 (combined contribution of aged BBOA and oxygenated OA) measured in Delhi was influenced by long‐range transported biomass burning emissions. During winter, secondary inorganics constituted a significant fraction apart from organics ∼(48%–55%), mainly in the form of ammonium nitrate (NH4NO3; up to ∼[19%–25%] of C‐PM2.5) and ammonium sulfate (NH4SO4; up to ∼[27%–38%]). Enhanced formation of NH4NO3 and related‐secondary organic aerosol (SOA) were linked to nighttime oxidation of BBOA, while NH4SO4 and related‐SOA were linked to heterogeneous aqueous phase oxidation under high RH conditions (>90%).
Effect of Dielectric Constant of the Liquid Phase of Electrorheological Fluids

Electrorheological Fluids were prepared by using small (approximately 63 μ) silica particles and fluids with very different dielectric constants (∈). The results of the rheological characterization of the above Electrorheological Fluids show dramatic changes depending on the relative polarity of the particle and liquid phases of the particular ERF. These results are discussed under the light of the various theoretical mechanisms proposed in the literature for Electrorheological Fluids.
Planning the potential future during multi-item visual working memory

Working memory allows us to retain visual information to guide upcoming future behavior. In line with this future-oriented purpose of working memory, recent studies have shown that action planning occurs during encoding and retention of a single visual item, for which the upcoming action is certain. We asked whether and how this extends to multi-item visual working memory, when visual representations serve the potential future. Human participants performed a visual working memory task with a memory-load manipulation (one/two/four items), and a delayed orientation-reproduction report (of one item). We measured EEG to track 15-25 Hz beta activity in electrodes contralateral to the required response hand – a canonical marker of action planning. We show an attenuation of beta activity, not only in load one (with one certain future action), but also in load two (with two potential future actions), compared to load four (with low prospective-action certainty). Moreover, in load two, potential action planning occurs regardless whether both visual items afford similar or dissimilar manual responses; and it predicts the speed of ensuing memory-guided behavior. This shows that potential action planning occurs during multi-item visual working memory, and brings the perspective that working memory helps us prepare for the potential future.
Modeling of Mortgage Loan Prepayment Risk with Machine Learning

A mortgage loan embeds the option to prepay part or the full amount of the loan before its maturity. This option is referred to as mortgage prepayment, and it causes a risk to the bank lending the mortgage loan due to the loss of future interest payments and the creation of complications in the reﬁnancing strategies. Given the typical size of a mortgage portfolio within the balance sheet of a bank, estimating the prepayment rate is therefore vital. There are two kinds of prepayment models available: the optimal pre-payment models, which consider prepayment as a consequence of rational behaviour, and exogenous models which also take into account borrower’s speciﬁcs, loan characteristics and macroeconomic factors. In this thesis, we focus on the second kind of techniques and investigate the applicability of machine learning and speciﬁcally of artiﬁcial neural network models, which are then applied to predict the prepayment rate on pools of mortgage loans. The estimators expose the highly nonlinear nature of the relationships between input variables and borrowers’ prepayment behaviour. To improve model interpretability, we conduct a sensitivity analysis to determine how input variables aﬀect the output of the model.
Calibrating the UHF technique of partial discharge detection using a PD simulator

The paper describes a technique for simulating the presence of partial discharges in gas-insulated substation (GIS) equipment. The technique employs a pulse generator to inject current pulses through a suitable protrusion. The current pulses have similar temporal characteristics to those produced by an actual discharge event, with the added advantage that their magnitudes can be controlled accurately. Because the pulses are highly reproducible, they are ideally suited for investigating the UHF technique of partial discharge detection. The paper discusses the relationship between the magnitude of the UHF signal received by a coupler and the discharge magnitude. It also shows that the coupler signal is dependent on the protrusion length and on the spatial relationship between the protrusion and the coupler. The implications for practical discharge measurements in GIS also are discussed. >