Miracle-dz/UniFAR-FTUs huggingface dataset:
On Solving Waveguide Junction Scattering Problems by the Conservation of Complex Power Technique

Normal mode expansions are used to mode match the tangential electric field at the transverse junction of two cylindrical waveguides. Instead of mode matching the tangential magnetic field the principle of conservation of complex power is invoked and leads, without a matrix inversion, to an expression for the junction's input admittance matrix, as seen from the smaller guide. Simple matrix algebra and the reciprocity theorem then provide the generalized scattering matrix of the two-port (with higher order modes included). It is also shown that the solution satisfies the continuity condition for tangential magnetic field in the junction's aperture. Numerical results are given for parallel plate waveguides with TEM, TE/sub 1/, and TM/sub 1/ incident fields, numerical convergence being achieved with about ten modes in the smaller waveguide.
Pengaruh Tingkat Literasi Keuangan Terhadap minat Penggunaan Produk Finansial Teknologi Pada Mahasiswa FEBI UIN Sumatera Utara

In the BPS survey conducted in February-September 2020, Gen Z reached 75.49 million or 27.94 million out of a total population of 270.2 million, meanwhile, the number of millennials reached 69.9 million (25.87%). With the presence and dominance of the second generation groups who are relatively digitally literate among the regional population, Indonesia hopes to more easily understand these groups as the backbone of digitalization programs for various sectors in the next year. Digital literacy generation. This study aims to determine how big the level of financial literacy in FEBI UIN North Sumatra students and to determine whether or not there is an influence of literacy level on interest in using technology financial products. The research method used is a quantitative method. Data retrieval using a questionnaire distributed via google form with the respondents are students of Islamic Accounting, Management, Islamic Economics, Sharia Insurance and Sharia Banking study programs. Collecting data in this study using a questionnaire method with a Likert scale method and distributed to 100 respondents. In this study, the data analysis technique used was descriptive analysis and simple regression analysis using SPSS 15.0. The results of this study indicate that the literacy rate of FEBI UIN North Sumatra students is known to be 29.10%. It is classified into the Well literate category and there is a positive and significant influence between the level of financial literacy on the interest in using technology financial products
The effect of sound on office productivity

This article reports the results of a questionnaire survey examining the effects of sound on office productivity and assessing the relationship between changes in office productivity and noise sources as well as five environmental and office design factors, namely temperature, air quality, office layout, sound and lighting. The convenience sample for the survey comprised 259 office workers in 38 air-conditioned offices in Hong Kong. The subjects were requested to complete the questionnaires themselves. The results show that among the five environmental and office design factors examined, sound and temperature were the principal factors affecting office productivity. A strong and significant correlation was also found between changes in office productivity and sound, temperature and office layout. Participants were separated into low- and high-productivity groups using the mean productivity score of all participants as the cut-point. The three most annoying noise sources, including conversation, ringing phones and machines, differed little in mean annoyance scores for the low- and high-productivity participants, indicating that they had a significant negative impact on all participants. The results also indicate that low-productivity participants were easily influenced by noises such as background noise, closing doors, and human activity, as well as those coming from both inside and outside the office. Practical applications: This study evaluates the effects of sound and other environmental and office design factors on office productivity. It suggests that sound is a principal factor affecting office productivity in modern air-conditioned offices.
SHIFT OF EFFECTIVE CENTROID OF CHANNEL COLUMNS

In the design of pin-ended channel columns, it is necessary to account for the shift of the effective centroid caused by local buckling. The current American Iron and Steel Institute's 1996 Specification for the Design of Cold-Formed Steel Structural Members and the 1996 Australian/New Zealand standard Cold-Formed Steel Structures calculate the shift by use of effective widths. However, the ability of the effective width rules to accurately predict this shift has not been experimentally assessed. In this paper, recent tests on fixed-ended channel columns are used to obtain values of the shift of the effective centroid, including its variation with the applied load. It is concluded that effective width rules of the American and Australian specifications accurately predict the direction and magnitude of the shift of the effective centroid for plain channels but not for lipped channels with slender flanges. The paper proposes simple modifications to the current effective width rules that provide agreement be.
Influence of plant spacing and sowing time on yield of sunflower (Helianthus annus L.)

Sunflower production can be increased by optimizing agronomic practices that affect production. Plant spacing and sowing time are two important factors affecting sunflower production. To determine the optimum sowing date and plant spacing of native sunflower, an experiment was conducted for one year at the Research Farm of Agricultural Research Center in Rasht, located in north of Iran. Climatically, the area has a mild and humid climate with variable rainfall throughout the year. The average rainfall during the year is 1359 mm. The experiment was laid out as a randomized complete block design with three replications. The treatments were two planting dates (25 th April and 15 th May), and four plant spacing (75 cm × 20 cm, 65 cm × 23 cm, 50 cm × 30 cm, 35 cm ×43 cm) with equal plant density. The results showed significant effects of planting date and plant spacing on yield and yield components of native sunflower. The earlier planting date was shown to give better seed yields than later planting. The later planting date resulted in decreased yield of sunflower but increased straw yield. Also number of infertile seeds/head was lower at the early planting time. At all plant spacing the early planting gave a superior harvest index compared to the later planting. Increasing row spacing resulted in increasing yield. The highest seed yield (2489 kg/ha) and harvest index (18.93%) were obtained from the early planting date at the 75 cm × 20 cm plant spacing. A delay of the planting date significantly decreased grain yield of sunflower due to a decrease in the number of seeds per head and in seed weight and seed yield.
Subcutaneous Interleukin-2 Monotherapy for Metastatic Renal Cell Carcinoma in Korean Patients

Purpose: This study was a prospective single-arm clinical trial aimed at assessing the efficacy and toxicity of subcutaneous interleukin (IL)-2 monotherapy in patients with metastatic renal cell carcinoma (RCC). Materials and Methods: We enrolled 26 patients with metastatic RCC in this multicenter controlled trial. The patients received subcutaneous injections of recombinant IL-2 (BMI-rh-IL2, an aldesleukin biosimilar, BMIKOREA Co., Ltd.) in 5-week cycles. In the first week, the patients received a subcutaneous IL-2 loading dose of 18×106 IU once on treatment days 1–5, followed by 2 days of rest. In the following 3 weeks, they received a dose of 18×106 IU via subcutaneous injection once on treatment days 1 and 2. Then, the patients received a dose of 9×106 IU via subcutaneous injection once on treatment days 3, 4, and 5, followed by 2 days of rest. The primary end point was the objective response rate; the secondary end points were progressionfree survival (PFS) and safety.Results: Overall, 22 patients were included in the final per-protocol analysis. The objective response and the disease control rates were 13.64% (3 of 22), and 90.9% (20 of 22), respectively. The mean PFS was 5.55 months (95% confidence interval, 2.71–8.4). The proportion of patients who experienced a treatment-related grade 3 or 4 adverse event was 3.85% (1 of 26). There were no treatment-related deaths.Conclusions: In this study, the subcutaneous IL-2 monotherapy regimen demonstrated efficacy and safety comparable to those reported in previous studies of subcutaneous IL-2 monotherapy and was effective in Korean patients with metastatic RCC.
Soft and hard computing approaches for real-time prediction of currents in a tide-dominated coastal area

The prediction of tidal currents in the coastal region on a real-time or online basis is useful in taking operation- and planning-related decisions such as towing of vessels and monitoring of oil slick movements. Currently, however, this is done in offline mode on the basis of the statistical method of harmonic analysis involving fitting of harmonic functions to measured data. Alternatively, numerical solutions of hydrodynamic models can also provide spatial and temporal information on currents. Owing to the complex real sea conditions, such methods may not always yield satisfactory results. This paper discusses a few alternative approaches based on the soft computing tools of artificial neural networks (ANNs) and genetic programming (GP), as well as the hard mathematical approaches of stochastic and statistical methods. The suggested schemes use only a univariate time series of currents to forecast their future values. The measurements of coastal currents made at two locations in the Gulf of Khambhat along the west coast of India have been analysed. The current predictions over a time step of 20 min, a few hours, and a day at the specified locations were carried out. It was found that the soft computing schemes of GP and ANN performed better than the traditional hard technique of harmonic analysis in the present application. This work should initiate more application of GP in coastal engineering. Addressing the problem of current predictions in real-time mode based on analysis of observed time series of ocean currents is a specialty of this work.
Compressibility and consolidation properties of Santos soft clay near Barnabé Island

A geotechnical study based on characterization tests and seventy incremental loading onedimensional consolidation tests was carried out on high-quality undisturbed samples taken from Santos Harbor Channel subsoil near to Barnabé Island, where a pilot embankment was built. The characterization profiles revealed a stratigraphy following the pattern described by Massad (2009), with a 9 m-thick fluvial-lagoon-bay sediments (SFL) clay layer. The consolidation tests were performed following two loading criteria. In criterion A (series one tests), a new loading was applied whenever the strain rate (ε) reached 10-6 s-1, the highest integer power of 10 after the “end of primary” consolidation for double drained 2 cm-thick specimens. In criterion B (series two tests), the standard procedure of 24 hour-long stages was adopted. Criterion A reduced the total duration of the consolidation tests from ten to about three days. The preconsolidation (yield) stress (σ’p) and the compressibility parameters Cc and Cr obtained from “e versus σ’v (log)” compression curves of all tests are provided. Series two tests showed that the 24-hour “e versus σ’v (log)” compression curves are translated to the left of the ε = 10-6 s-1 “e versus σ’v (log)” compression curves, keeping Cr and Cc average values unchanged, but decreasing σ’p by about 8%. The SFL clay Cc/(1+e0) values obtained herein are higher than those presented by Massad (2009) due to the higher-quality samples tested in this study. It is shown that it is feasible to carry out a high-quality laboratory test program for design purposes following current standards.
Mode conversion and design consideration of integrated nonradiative dielectric (NRD) components and discontinuities

In this paper, a class of nonradiative dielectric (NRD)-guide discontinuities is studied toward the establishment of design rules of NRD-guide circuits and components for millimeter-wave applications. A mode-matching technique with a multimodal transverse resonance condition is formulated to derive a generalized scattering matrix that allows accounting for effects of higher order modes and intermode coupling. Transmission properties of an NRD structure featuring a multilayered dielectric in cross section are presented. Mode conversion and power transfer among principal NRD-guide modes are, in particular, characterized for design consideration of NRD-guide components and circuits. New sets of easy-to-use design curves are introduced, thereby allowing practitioners to choose appropriate dielectric materials and NRD-guide topologies. Equivalent-circuit models are extracted from the generalized S-matrix for some basic and practically useful discontinuities involved in the design of almost every NRD-guide component, which include open ends, junctions, steps, and gaps. Calculated results of the selected structures are found to be in a good agreement with measurements. Dispersion diagrams of periodic NRD structures are also given in this paper.
Intrinsic and Extrinsic Motivation for University Staff Satisfaction: Confirmatory Composite Analysis and Confirmatory Factor Analysis

The hierarchical construction model (HCM) may be used to minimize colinear formative indicators while increasing the statistical power of content-specific constructs. However, the present research discovered a strong correlation between intrinsic and extrinsic motivation and job satisfaction, indicating a lack of discriminating validity that limits the use of HCM. Thus, this research condensed data on job satisfaction for university staff by comparing a consistent partial least square (PLSc) model to a composite model without utilizing higher-order constructs. The sample consisted of 392 individuals working in a Thai university with a total of 1,042 staff. The results show that the composite model performs better than a consistent partial least square, generating bias. Intrinsic motivation is both a direct and indirect effect on job satisfaction. Extrinsic motivation is a complementary model mediator effect. The limitation of the study is an inherent relation between intrinsic and extrinsic motivation and indicators of job satisfaction, which can cause a common factor model bias. Further studies where the partial least square structural equation model (PLS-SEM) is compared early with the covariance-based structural equation model (CB-SEM) are needed, particularly studies using composite indicators. PLS-SEM can now be used to measure both confirmatory composite analysis and confirmatory factor analysis, while CB-SEM can only estimate confirmatory factor analysis. The method of condensing data may help eliminate discriminant validity issues.
A genetic algorithm-based model predictive control autopilot design and its implementation in an autonomous underwater vehicle

The control of any underwater vehicle has always been a challenging task and is certainly an important and necessary feature of an autonomous underwater vehicle (AUV). This paper describes the implementation of a genetic algorithm (GA)-based model predictive controller for an AUV named Hammerhead which is being developed jointly by the Universities of Plymouth and Cranfield. To the present authors' knowledge, this is the first successful application of a GA in realtime optimization for controller tuning in the marine sector and thus the paper makes an extremely novel and useful contribution to control system design. The advantages of using model predictive control (MPC) include its constraint handling and disturbance rejection properties commonly present in an underwater environment. The use of GAs generalizes MPC to employ linear as well as nonlinear process models. Furthermore, it supports the inclusion of various types of objective function without having to change the controller structure. The model required for MPC is extracted using system identification techniques on actual AUV data obtained from full-scale in-water tests. A description of Hammerhead AUV is outlined and simulation and experiment data are shown which were obtained by optimizing the cost function online using the GA. Results demonstrate good tracking behaviour despite the presence of disturbances and ever-present modelling uncertainty.
Domain‐topic models with chained dimensions: Charting an emergent domain of a major oncology conference

This paper presents a contribution to the study of bibliographic corpora through science mapping. From a graph representation of documents and their textual dimension, stochastic block models can provide a simultaneous clustering of documents and words that we call a domain‐topic model. Previous work investigated the resulting topics, or word clusters, while ours focuses on the study of the document clusters we call domains. To enable the description and interactive navigation of domains, we introduce measures and interfaces that consider the structure of the model to relate both types of clusters. We then present a procedure that extends the block model to cluster metadata attributes of documents, which we call a domain‐chained model, noting that our measures and interfaces transpose to metadata clusters. We provide an example application to a corpus relevant to current science, technology and society (STS) research and an interesting case for our approach: the abstracts presented between 1995 and 2017 at the American Society of Clinical Oncology Annual Meeting, the major oncology research conference. Through a sequence of domain‐topic and domain‐chained models, we identify and describe a group of domains that have notably grown through the last decades and which we relate to the establishment of “oncopolicy” as a major concern in oncology.
Porous SiO2 Nanospheres Modified with ZrO2 and Their Use in One-Pot Catalytic Processes to Obtain Value-Added Chemicals from Furfural

Porous SiO2 nanospheres were modified with different loadings of ZrO2 to obtain catalysts with a Si/Zr molar ratio from 2.5 to 30. These materials were characterized by X-ray diffraction, transmission and scanning electron microscopies, N2 adsorption–desorption at −196 °C, X-ray photoelectron spectroscopy and pyridine and 2–6-dimethylpyridine thermoprogrammed desorption. The characterization of these catalysts has revealed that a high proportion of Zr favors the formation of Lewis acid sites, which are implied in catalytic transfer hydrogenation processes, whereas the low Brönsted acidity promotes a dehydration reaction, being possible to give rise to a large variety of products from furfural through consecutive reactions, such as furfuryl alcohol, i-propyl furfuryl ether, i-propyl levulinate, and γ-valerolactone, in a range of temperature of 110–170 °C and 1–6 h of reaction.
Multidimensional CMOS in-plane stress sensor

This paper reports on a novel multidimensional CMOS based stress sensor. The sensor uses an individual n-well to detect all in-plane stress components through the application of the switching current method. To reduce the system's non-linearities the sensor features a middle contact for improved biasing conditions. A bending-bridge setup was used to apply stress to the device. The behavior was modelled using a novel combination of the finite element method and a nonlinear SPICE network simulation. The device supplies information about the angular dependence of the resistive components and the orthogonal offset voltage. These may be used to extract the three in-plane stress components.
Reinforcement in concrete piles embedded in sand

In this study, the necessity of reinforcement in concrete pile (bored or driven) is assessed. The soil was assumed to be unsaturated and homogeneous sandy soil. Throughout the study, a finite element computer program was used and the pile was modeled as a beam-on-elastic foundation. The soil is represented by discrete spring. The stiffness of each spring is considered to be linearly variable with depth. The moment loading, lateral loading, pile length, pile diameter, in addition to the angle of internal friction and soil density were taken as parameter to study their effect on the extent of reinforcement along the pile shaft. It is concluded that for piles embedded in sand, a length of reinforcement not less than 40% of pile length for bored piles and 20% for driven piles is needed.
Quadriceps femoris cross-sectional area and specific leg strength: relationship between different muscles and squat variations

Background The aim was to determine the relationship between the cross-sectional area of the quadriceps femoris and strength performance in the deep and parallel barbell squat. Methods The sample included 16 university students (seven female, 24.1 ± 1.7 years). Muscle strength was expressed as external load, including the one-repetition maximum and the body mass segments involved (calculated according to Dempster’s method). The cross-sectional area of the quadriceps femoris muscles was determined using ultrasound, while leg muscle mass was measured using the Bioelectrical Impedance method. Results The cross-sectional areas of the three vastii muscles and leg muscle mass showed moderate to strong correlation with external load in both squat types (r = 0.509–0.873). However, partial correlation (cross-sectional area of quadriceps femoris muscles were controlled) showed significant association only between leg muscle mass and deep squat (r = 0.64, p < 0.05). The cross-sectional area of the vastus lateralis showed a slightly higher correlation with external load in the parallel than in the deep squat (r = 0.67, p < 0.01 vs. r = 0.59, p < 0.05). The regression analysis extracted the vastus medialis cross-sectional area as the most important factor in manifesting strength (parallel squat: R2 = 0.569; deep squat: R2 = 0.499, both p < 0.01). The obtained results suggest that parallel squat strength depends mainly on the cross-sectional area of the vastii muscles, while it seems that the performance in the deep squat requires an additional engagement of the hip and back extensor muscle groups.
Process planning methodology: dynamic short‐term planning for off‐site construction in Slovenia

Planning is a vital element of project management but it is still not recognized as a process variable. Its objective should be to outperform the initially defined processes, and foresee and overcome possible undesirable events. Detailed task‐level master planning is unrealistic since one cannot accurately predict all the requirements and obstacles before work has even started. The process planning methodology (PPM) has thus been developed in order to overcome common problems of the overwhelming project complexity. The essential elements of the PPM are the process planning group (PPG), including a control team that dynamically links the production/site and management, and the planning algorithm embodied within two continuous‐improvement loops. The methodology was tested on a factory project in Slovenia and in four successive projects of a similar nature. In addition to a number of improvement ideas and enhanced communication, the applied PPM resulted in 32% higher total productivity, 6% total savings and created a synergistic project environment.