Miracle-dz/UniFAR-FTUs huggingface dataset:
Analysis of semiconductor laser dynamics under gigabit rate modulation

A theoretical study of the dynamics of semiconductor lasers subjected to pseudorandom digital modulation at gigabit rates is presented. The eye diagram, turn-on jitter (TOJ), and power fluctuations in the modulated laser wave form are analyzed. The study is based on numerical large-signal analysis of the laser rate equations. Influences of the biasing and modulation currents on the eye diagram and TOJ are examined. The degree of eye opening is measured in terms of a Q factor of the laser signal analogous to the Q factor determining the bit-error rate in transmission systems. Influence of optimizing both the sampling and decision times on the signal Q factor is modeled. We show that the most eye opening corresponds to shortening the sampling time associated with lengthening the decision time. We also assess the relative contributions of the laser intrinsic noise and pseudorandom bit pattern to the TOJ. The results show that the bit pattern is the major contributor to the TOJ when the setting time of the re.
Implementing a waste management plan during the construction phase of a project: a case study

The construction industry in Australia contributes approximately 15%, by volume, of all solid waste disposed in landfills each year. Similar volumes have been recorded in other countries. The Australian government, in common with many other countries, has legislation in place to reduce landfill requirements by 50% by the year 2000. As part of this programme an Australian division of a multinational construction company has developed a company policy with the aim of managing waste generated on site and, thereby, reducing the amount deposited in landfill sites. The programme has been supported by the Victorian Recycling and Resource Recovery Council. The first implementation of this policy was at the Dandenong Police and Court Complex in Melbourne. The effects of the programme have been compared against a similar project built concurrently. The results of the trial revealed substantial savings. A total volume of 15% less waste was generated on site prior to recycling and 43% less waste went to landfill. Cost savings of 50% were made in terms of waste handling charges. The savings resulted almost entirely from site based strategies for handling waste.
Observation of induction motor parameters

Purpose – This paper aims to present an observer application for a squirrel cage induction motor, which is a complex non‐linear system with parameter variations.Design/methodology/approach – Proposes a non‐linear observer with a great profit to follow up in real time the flux and rotor resistance of a squirrel cage induction motor.Findings – The robustness of induction motors encourages their use in the industry. But, to assure a reliable working and to detect probable breakdowns, it is necessary to control some important parameters in real time. The Park model of induction motors is non‐linear. The results of the different simulations are presented in order to evaluate the performance of the proposed method.Originality/value – Provides information on an effective industrial application.
Evidencias psicométricas mediante SEM y análisis de red del “Inventario de crecimiento postraumático” en adolescentes peruanos

El crecimiento postraumático es la capacidad psicológica para percibir cambios positivos ante eventos altamente estresantes o potencialmente traumáticos y puede ser especialmente útil para amortiguar sus efectos en la vida de los adolescentes. El objetivo de este estudio fue evaluar las propiedades psicométricas de la adaptación peruana del “Inventario de crecimiento postraumático” (PTGI). Participaron 2103 adolescentes (50,7% hombres) de entre 13 y 19 años, quienes estuvieron expuestos a algún evento altamente estresante en los últimos cinco años. Se realizó un análisis factorial confirmatorio, invarianza factorial, análisis de red y se correlacionó el PTGI con una medida de bienestar. Se observó el mejor ajuste parsimonioso en un modelo unidimensional de 21 ítems, el PTGI mostró ser invariante según el sexo, el análisis de red determinó mayor medida de centralidad de fuerza en el ítem 2 (apreciación de la vida). Estos resultados indican que el PTGI es una prueba con validez de constructo, invariante, fiable y adecuado para evaluar el nivel de crecimiento psicológico en adolescentes peruanos que sufrieron algún evento estresante durante los últimos cinco años.
Hearing loss in the built environment : the experience of elderly people

A qualitative social survey has been conducted on a group of 207 elderly people with a hearing loss. The aim of the study was to determine the extent to which acoustic problems in the built environment affect this subject group. The project was thought necessary because most areas of the built environment are designed using an assumption of normal hearing. The work was conducted as part of a UK programme to extend the quality of life for disabled and elderly users of the built environment. It was found that the speech communication of elderly people was significantly affected by the presence of background talkers in a reverberant environment. Considerable evidence of subjects adapting their behaviour to acoustic problems was found. For example, a large number of subjects experienced poor reception with hearing aids. This prompted them to use the aid selectively. Also, poor sound insulation in domestic dwellings gave a strong disincentive for some subjects to use their television sets at a comfortable listening level.
Human-wildlife conflict in the community forestry landscape: a case study from two Middle Hill districts of Nepal

ABSTRACT Our current understanding of human-wildlife conflicts (HWC) is limited beyond protected areas. This article investigated HWC in community-forestry (CF) landscape in two Middle Hill districts of Nepal, where community forests and agriculture are mosaicked. We used a combination of qualitative and quantitative methods and geospatial tools to examine economic losses to local farmers from HWC and their associated factors. We found that 47% of the cropland parcels experienced crop-raiding, and 29% of the households lost livestock to wild-animals in the study area. Livestock unit, distance to forests, household elevation, and number of neighboring households were identified as the significant factors associated with livestock depredation, while crop-raiding was strongly related to distance from parcels to forest edges, walking distance from home to parcels, elevation, crop type and the number of crop rotation. After examining existing policies for HWC mitigation, we found loopholes that need to be patched up in CF landscape.
Experiences of TQM elements on Organisational Performance and future opportunities for a developing country.

Purpose – The purpose of this paper is to examine the extent of total quality management (TQM) implementation in Libyan manufacturing companies (LMCs), and its impact on organisational performance (OP). The paper further investigates the impact of TQM implementation on OP, both in the presence or absence, of ISO 9000. Design/methodology/approach – This paper examines the extent of TQM implementation in LMCs, and its impact on OP. The paper further investigates the impact of TQM implementation on OP, both in the presence or absence, of ISO 9000. Findings – The results on the level of TQM implementation in the 56 companies surveyed revealed that Libyan companies are still struggling to embark effectively upon TQM. Data analysis indicated that each TQM element, except supplier quality management, was significantly correlated with at least one of the nine OP improvements. The results of the regression analysis showed that each OP measure was only predicted by one TQM element. However, process management and t.
Friction Materials—Black Art or Science?

This address highlights some of the experiences of the Chairman in his career at Mintex Don Limited, a member of the BBA Group of companies, concerning the development and installation engineering of friction materials. Work on specific component design to overcome problems in both transmissions and brake systems is described; an outline is given of how testing has developed over the past 40 years; and the influence of regulations on testing is described, as well as how the change from asbestos-based to asbestos-free friction materials was achieved. Modern analysis techniques, electronic instrumentation and computational methods have increasingly assisted in this work and it is shown that friction materials have ceased to be developed by ‘black art’ and are now a well understood science.
Why veterans lose: the decline of retired military officers in Myanmar’s post-junta elections

Abstract Retired military officers often continue to wield significant influence in regimes built after the end of junta rule, sometimes helping to bridge enduring civil–military divides. Myanmar’s recent legislative elections offers a counterintuitive case. There has been a rapidly decreasing influence of military retirees in the electoral landscape shaped in the 2010s. I reveal this decline using data on the sociological background of candidates for the 2015 and 2020 elections. Then, building on field interviews with retired officers who ran for office, I offer five explanatory propositions: (1) the depletion of moral capital held by soldiers; (2) military socialisation and the difficulties for veterans to transition to political life, with rivals from other sectors emerging as better equipped; (3) the existence of worthier avenues for power, influence and wealth acquisition; (4) the failure of the authoritarian successor party to manipulate votes and be voted back into office; and (5) the lingering authority and political sway of serving officers. The findings illuminate the persistent insulation from Myanmar society of its active military – even before the 2021 coup – and challenge the claim that veterans can help close the widening gap in Myanmar’s civil–military relations.
Equilibrium Bunch Density Distribution with Multiple Active and Passive RF Cavities

In the last decade, following the growing interest for the usage of harmonic cavities (HC) in the light source community, there were many attempts to develop analytic methods to obtain the equilibrium bunch density. First by assuming a uniform filling pattern [1, 2] and then with non-uniform filling pattern [3–5]. All these methods assume that the RF system is composed of two cavities: the main RF cavity (MC) is assumed to be a perfect sine wave (active cavity with no beam loading) and the HC is a passive one (no generator voltage). For most of theses methods, it should be straightforward to extend them to a general case of a RF system with an arbitrary number of cavities with both beam loading and generator voltage, which can then be applied to all cases: MC, passive and active HC. This paper provides the steps needed to first treat the active HC case and then to add the beam loading of the main cavity to the method developed by Venturini in his paper [1]. Because the IPAC paper format is quite short and that the method described here is an extension, we will use the same notation as in [1] and the reader should refer to that paper for further information on the base method. The method described here with the general case, considering # active or passive cavities, has been added to mbtrack2 [6]. Finally, the equilibrium bunch profile obtained with this method for the SOLEIL upgrade case [7] is compared to tracking using mbtrack2.
Social Responsibility of Economic Units and the Well-Being of Society in the Tourism Sector: Example of Accommodation Facility

Corporate social responsibility (CSR) assumes that companies should justify their existence with services for various stakeholders and not with profit alone. There is a strong emphasis on the implications of CSR for managing human resources in hotels and other accommodation services, supporting local communities, and promoting environmental sustainability. This article aims to present the adjustment of business entities providing accommodation services in Poland to the CSR principles. Two aspects were examined: the environmental aspect, i.e., waste segregation and the use of economic energy receivers, while the social aspect included engaging employees, as well as investing in improving their qualifications towards pro-ecological awareness. The study was conducted on a sample of 207 owners and managers of economic entities in the accommodation sector in Poland. The Statistica software was used to analyze the obtained results, including Chi2 statistics and correspondence analysis. Based on the obtained results, it can be concluded that the employees of accommodation centers usually deal with the final segregation of waste because they believe that tourists do not follow the rules of proper segregation. Most hotels are equipped with bins for all fractions of waste. The affiliation of a center to a specific macroregion in Poland was not statistically significant in terms of waste segregation practices. Only in the southern macroregion of Poland, ordinary light bulbs are used in accommodation establishments, which account for 0.97% of the surveyed population. In other regions, ¾ establishments use energy-saving receivers in all rooms. Only 1/3 of the facilities invested in developing their staff by organizing training courses toward sustainable development. The most popular subjects were topics related to waste segregation, energy and water saving, and environmental protection.
Effect of Rotor Asymmetry on Field Forms and Eddy Current Losses in Stator Conductors Due to Radial Flux

Some advantages of rotor slot asymmetry are presented. The study was made using a computerized model of the two and four pole turbo-generator magnetic field based on the principle of magnetic vector potential and finite differences including nonlinearities of magnetic material. Rotor asymmetry reduces the peak value of mid gap flux density and saturation in the stator teeth.
The Dynamic Performance of an Electrorheological Fluid in Squeeze Flow under AC Excitation

This paper is concerned with an experimental comparative assessment of the mechanical performance of an ER fluid in oscillatory squeeze flow under various AC conditions. Interest in this topic arose from the desire to employ the fluid in this way in a shortstroke vibration damper. In this investigation the fluid is sandwiched between two parallel plane electrodes, the upper one being fixed and the lower one vibrating normal to its plane. The magnitude of the transmitted force across the fluid is seen to be highly dependent on the shape of the input waveform, on the mechanical vibration frequency as well as on the electrical excitation frequency and level of applied voltage.
Evaluation of Yam peels meal as replacement of maize on the growth performance, carcass characteristics and cost benefits of growing rabbits

A Feeding trial was conducted for eight weeks to evaluate the effect of replacing Maize with graded levels of Yam Peel Meal (YPM) in the diet of growing Rabbits on growth performance, apparent nutrient digestibility, carcass characteristics and cost benefit. A total of 36 rabbits of mixed breeds (New Zealand and Chinchilla) were procured and used for the study. The rabbits were individually weighed and randomly assigned to four dietary treatment groups with 12 rabbits and replicated three times with three rabbits per replicate in a completely Randomized Design. Rabbits in dietary treatment T1 (0%YPM) served as control while those in T2, T3 and T4 had 12.5, 25.0 and 37.5 % YPM as a replacement of maize. The data obtained were analyzed using one way analysis of variance (ANOVA). Results showed that growth performance indices, nutrient digestibility, dressed weight, dressing percentage and relative cost benefit were better in Rabbits fed YPM based diets. However, best results were recorded in T4 (37.5% YPM) with daily weight gain (46.4g), feed conversion ratio (4.4), NFE digestibility (46.4%), dressing percentage 60.7%) and relative cost benefit (26.7). It can be concluded that dietary of replacement of Maize with YPM up to 37.5% has no adverse effects on performance and higher relative cost benefits is achieved.
On the influence of elevated strike objects on directly measured and indirectly estimated lightning currents

The knowledge of lightning current parameters comes essentially from direct measurements obtained using instrumented towers or triggered lightning, and from measurements of lightning electromagnetic fields assuming empirical or theoretical relations between fields and currents (indirect estimation). In this paper, the effects of an elevated strike object on both the direct and indirect estimation of the current parameters is examined. The authors first give the expressions which allow for what they call the 'decontamination' of measured lightning currents from the tower reflections, assuming the tower as a perfectly conducting strike object. They show that even though the reflections might not be discernible in experimental recordings for tower heights as those used in Berger et al.'s and Garbagnati and Lo Piparo's investigations, the peak current might be significantly affected. They then extend the transmission line (TL) return-stroke model of Uman and McLain, by taking into account the presence of an elevated strike object and the multiple reflections at the bottom and at the top of it. In general, radiated fields calculated considering and neglecting the presence of the strike object differ. It is shown that relatively short strike objects, such as triggered lightning launching structures, may not appreciably affect the calculated field peak values and overall wave shapes, but could affect the field derivatives.
Comparisons of PM10, PM2.5, Particle Number, and CO2 Levels inside Metro Trains Traveling in Underground Tunnels and on Elevated Tracks

Commuters spend considerable time, in some cases up to 1–2 h a day, traveling in metro trains. However, few studies have compared air quality between trains traveling above-ground and underground. This study measures the PM10, PM2.5, particle number (PN) and CO2 levels inside metro trains traveling in underground tunnels and on elevated tracks on a metro line in the Taipei metro system. The results demonstrated that PM10, PM2.5 and CO2 levels inside metro trains traveling in underground environments are approximately 20–50% higher than those in above-ground environments. However, PN levels inside metro trains traveling in underground environments are approximately 20% lower than those in above-ground ones. These measurement results reveal that levels of pollutant species inside the metro trains are significantly affected by traveling environmental conditions––in underground tunnels or on elevated tracks. Moreover, the levels of pollutant species inside the metro trains traveling on the same route are also different in different traveling directions. Fine PM inside the metro trains is transferred from the outside and significantly influenced by the surrounding conditions of the trains. Additionally, a high fraction of large coarse PM (> 10 μm) is observed inside the metro trains, possibly due to re-suspension by the movement of commuters. The measurement results show that, unlike PM, which is transferred from outside environments, CO2 inside metro trains is elevated internally by exhalation from commuters. Clearly, CO2 exhaled by commuters could accumulate inside metro trains and, compared to PM, is not as easily removed by the ventilation system when air circulation does not provide enough fresh air in the metro trains, particularly in trains traveling in underground environments.
The thermal conductivity of concrete

Summary A simple theory is developed which gives the thermal conductivity of concrete in terms of the thermal conductivity of its constituents. The predictions of this theory concerning the variation of the thermal conductivity of concrete with moisture content have been tested by experiment and have been found correct; this experimental work covers the effect of moisture content on the thermal conductivity of concrete made with three different aggregates, namely, dolerite, haematite and barytes.
S-nitrosoglutathione reductase (GSNOR) deficiency accelerates cardiomyocyte differentiation of induced pluripotent stem cells.

Introduction Induced pluripotent stem cells (iPSCs) provide a model of cardiomyocyte (CM) maturation. Nitric oxide signaling promotes CM differentiation and maturation, although the mechanisms remain controversial. Aim The study tested the hypothesis that in the absence of S-nitrosoglutathione reductase (GSNOR), a denitrosylase regulating protein S-nitrosylation, the resultant increased S-nitrosylation accelerates the differentiation and maturation of iPSC-derived cardiomyocytes (CMs). Methods and Results iPSCs derived from mice lacking GSNOR (iPSCGSNOR-/-) matured faster than wildtype iPSCs (iPSCWT) and demonstrated transient increases in expression of murine Snail Family Transcriptional Repressor 1 gene (Snail), murine Snail Family Transcriptional Repressor 2 gene (Slug) and murine Twist Family BHLH Transcription Factor 1 gene (Twist), transcription factors that promote epithelial-to-mesenchymal transition (EMT) and that are regulated by Glycogen Synthase Kinase 3 Beta (GSK3β). Murine Glycogen Synthase Kinase 3 Beta (Gsk3β) gene exhibited much greater S-nitrosylation, but lower expression in iPSCGSNOR-/-. S-nitrosoglutathione (GSNO)-treated iPSCWT and human (h)iPSCs also demonstrated reduced expression of GSK3β. Nkx2.5 expression, a CM marker, was increased in iPSCGSNOR-/- upon directed differentiation toward CMs on Day 4, whereas murine Brachyury (t), Isl1, and GATA Binding Protein (Gata4) mRNA were decreased, compared to iPSCWT, suggesting that GSNOR deficiency promotes CM differentiation beginning immediately following cell adherence to the culture dish-transitioning from mesoderm to cardiac progenitor. Conclusion Together these findings suggest that increased S-nitrosylation of Gsk3β promotes CM differentiation and maturation from iPSCs. Manipulating the post-translational modification of GSK3β may provide an important translational target and offers new insight into understanding of CM differentiation from pluripotent stem cells. One sentence summary Deficiency of GSNOR or addition of GSNO accelerates early differentiation and maturation of iPSC-cardiomyocytes.