Miracle-dz/UniFAR-FTUs huggingface dataset:
Closed Brayton Cycle Engine Application to Emerging Unmanned Underwater Vehicle Missions

Propulsion system definition to support emerging unmanned underwater vehicle (UUV) studies becomes of increasing significance as mission complexity grows. Substantial experience in the design of closed Brayton cycle (CBC) engines for marine applications has been applied to a range of UUV requirements and the results of system integration/conceptual design studies are described in this paper. The focus is on the heat engine; prior efforts have treated the associated thermochemical heat sources. Extensive use has been made of the pioneering efforts conducted 10 to 15 years ago. Some comparisons are given with competing propulsion system approaches (e.g., electrical systems), but these are not the focus of this paper since comparisons of this type have already been presented.Copyright © 1990 by ASME
Long-Term Drift Measurements in MEMS-Based Mass Flow Controllers

Micro-electromechanical systems (MEMS) components find increasing use in devices which measure and control gas flow, for medical and industrial use. Little or no information on the reliability of these devices has been published. This work reports the results of long-term performance studies of pressure-based mass flow controllers (MFCs) comprised of MEMS microvalves, pressure sensors, and critical flow orifices. Specifically, the details of long-term drift in the silicon pressure sensors (which comprise the flow sensor) are presented. Generally, pressure-based MFCs using MEMS components retain a flow accuracy of better than 1% of full scale over a 20:1 dynamic range, with response time under 0.5 sec, after more than three million operation cycles. The primary cause of inaccuracy within this dynamic range, and of inaccuracy larger than 1% of full scale beyond this range, is attributable to uncompensated zero-offset drift in the silicon pressure sensors, whose behavior is intrinsic to the flow sensor. Data is presented which details this characteristic, across many MFCs. Mechanical, thermal, fluidic, pneumatic and electronic mechanisms possibly responsible for the drift are also presented. Means to overcome this long-term drift phenomenon in silicon pressure sensors will complete the discussion.
Nursing Students’ Subjective Happiness: A Social Network Analysis

Improving nursing students’ subjective happiness is germane for efficiency in the nursing profession. This study examined the subjective happiness of nursing students by applying social network analysis (SNA) and developing a strategy to improve the subjective happiness of nursing. The study adopted a cross sectional survey to measure subjective happiness and social network of 222 nursing students. The results revealed that the centralization index, which is a measure of intragroup interactions from the perspective of an entire network, was higher in the senior year compared with the junior year. Additionally, the indegree, outdegree, and centrality of the social network of students with a high level of subjective happiness were all found to be high. This result suggests that subjective happiness is not just an individual’s psychological perception, but can also be expressed more deeply depending on the subject’s social relationships. Based on the study’s results, to strengthen self-efficacy and resilience, it is necessary to utilize strategies that activate group dynamics, such as team activities, to improve subjective happiness. The findings can serve as basic data for future research focused on improving nursing students’ subjective happiness by consolidating team-learning social networks through a standardized program approach within a curriculum or extracurricular programs.
Biofiltration process as an ideal approach to remove pollutants from polluted air

AbstractMost developing and developed countries are facing the problems and challenges of air pollution. Many governments have enacted laws and policies to enforce industrial activities to reduce air contaminating emissions and are mainly carried out by installation of air pollution control systems. Therefore, the use of suitable technique such as biofiltration processes to control air pollutants is necessary. Although many studies have been published on the designing and operations of polluted air treatment using biofiltration processes but a comprehensive review on it is still lacking. Till now due to conceptual designing and operational knowledge, several cases of failure or sub-optimum designing has been reported about the use of biofiltration process to treat polluted air. This paper presents a comprehensive review of biofiltration processes and technology for the control of organic and inorganic pollutants as an ideal approach to remove pollutants from polluted air. It also covers classification, fu.
High-Speed Multiple-Valued Data Transmission Based on Time-Domain Pre-Emphasis Techniques

This paper describes a Pulse-Width Modulation (PWM) pre-emphasis technique which utilizes time-domain information processing to increase the data rate for a given bandwidth of interconnection. The PWM pre-emphasis method does not change the pulse amplitude as for conventional FIR pre-emphasis, but instead exploits timing resolution. This fits well with recent CMOS technology trends toward higher switching speeds and lower voltage headroom. We discuss multiple-valued data transmission based on time-domain pre-emphasis techniques in consideration of higher-order channel effects.
Optimization of Medical CT Data with High Precision

AbstractThe precision of medical CT data has an important effect on the CT image reconstruction precision. In this paper, we present a novel approach for optimizing the raw CT data acquired by scanner. The approach can effectively improve the raw CT data precision, and consequently, improve the reconstruction precision. The new approach is based on the fact that the raw CT data can be regarded as the area samples of human density, and the point samples are more accurate than the area samples. The new approach transforms the raw area samples to more accurate point samples to improve the CT data precision by three steps: 1) establish the mapping relationship between area samples and point samples; 2) Segment the raw CT slice into different regions based on the human tissue feature; 3) in each segmented region, construct quadric spline fitting equation with the mapping relationship to transform the area samples to more accurate point samples. Experiments show that the image reconstruction with the new data o.
Membrane-mirror light valve high-definition projection display

This paper is concerned with the development of a new high-definition, high-contrast membrane-mirror light valve for use in high-brightness, three-color, flickerless, large-screen projection display system. The membrane-mirror light valve is an electron-beam-addressed unit that achieves high resolution, high contrast and flickerless operation through the use of charge-transfer-plate technology, and grid-stabilized flickerless operation. The paper focuses on the physics of the light valve and presents preliminary experimental results for a flickerless light valve framing at 30 Hz with 256 X 256 pixels in a 20 mm active area.
Values-led governance and parental and community engagement in the Co-operative Academies Trust: An alternative in the neoliberal context of education?

This article examines the nature of governance in the Co-operative Academies Trust which comprises academy schools in England sponsored by the Co-operative Group. The historical and political context for the study is summarised, the research methodology is explained, and data are drawn upon from one case study academy. Structural, organisational and operational deviations of the Co-operative Academies Trust are outlined. The findings illustrate a values-led, branding message and strategic identity, and the placement of senior Co-operative Group employees in the Local Governing Body to ensure the strategic direction is focused upon co-operative values and community. Operationally, the engagement with stakeholders privileges a rational-goal approach, but signs of cultural shift are occurring concurrently with parent forum members demanding deliberation and voice in decision-making.
Allograft Customized Bone Blocks for Ridge Reconstruction: A Case Report and Radiological Analysis

The aim of the present case report was to demonstrate the vertical gain in the posterior resorbed mandible utilizing the use of an Allograft Customized Bone Block. The case presents a 66-year-old healthy female nonsmoker who lost her right mandibular molars long time ago. In the past, she had an implant placement, which failed due to a fracture of the implant. Due to the high risk of mandibular nerve damage, the implant was left in the jaw and was completely covered with bone. Since the jaw was completely atrophic and short implants were not an option, a vertical ridge augmentation was required. This case report presents the use of an Allograft Customized Bone Block as a good option in patients with an atrophic mandible, showing no vertical bone resorption five months after placement and great osseointegration of the placed implants.
60.4: Moving Picture Simulations with OCB for Image‐Blurring‐Free LC TVs

For the purpose of establishing the achievable level of the moving picture display performance of LCDs, a study was conducted based on moving picture blur simulation. It has been clarified that OCB mode with fast responsive capability is promising for high performance LC TVs when 120 Hz driving is coupled with black data insertion. An LCD with moving picture display performance substantially in the same level as that of CRT can be achieved.
Error-free 46 Gbit/s operation of oxide-confined 980 nm VCSELs at 85°C

A new design of oxide-confined 980 nm vertical-cavity surface-emitting lasers (VCSELs) particularly well-suited for very-short-reach (~2 m and shorter) optical interconnects is presented. A new record for temperature-stable high bit rate VCSELs is achieved. Error-free data transmission at 46 Gbit/s is achieved up to a record-high temperature of 85°C. The maximum bit rate and -3 dB bandwidth at room temperature are 50 Gbit/s and 24.7 GHz, respectively.
Meshing Method of FEM in Large Complex Structural Simulations

Meshing is playing an important role in the large complex structural FEM simulations; it has a direct effect on calculating precision of structural simulations. For increasing the calculation accuracy and analysis accuracy of complex structure, the finite element meshing problems is proposed on the finite element analysis of large complicated structures. The effects caused by element type, mesh density and intergradations on calculating precision are studied and discussed. A research argues that with length-width ratio of 1~2 and length-thickness ration of 1.5~4.5 of two-dimensional rectangular element, the quality of meshing method of two-dimensional element is above normal. As the height of one-dimensional element is equal to the sum of reinforcing rib height of outer panel and half the thickness of panel, more accurate results can be obtained.
The Analysis of Resistances that Hamper the Use of BIM in China

Nowadays, Building Information Modeling (BIM) is world used in the construction industry, especially in those developing countries in the North America and Europe. In China, only some big design institutes are or have been applying this technology. This paper concretely the situation and barrier of using BIM in China, expounds its application prospect in China based on the relationship between BIM technology and the related parties.
The Development of a Rapid Classification Scale for Sleep Quality in Community-Dwelling Older Adults – The Yilan Study, Taiwan

Objective Poor sleep quality is prevailing, deleterious, but heterogeneous in older adults. This study aimed to develop a simplified instrument to screen and classify poor sleep quality in community-dwelling older adults, by which stepped care with needs-based interventions could be implemented. Methods Cohorts of adults aged 65 years and older were used to develop the Rapid Classification Scale for Sleep Quality (RCSSQ). Poor sleep quality was defined with the Pittsburgh Sleep Quality Index (PSQI). Established subgroups of poor sleep quality in the development dataset (n = 2622) were used as the criterion standard. Two independent validation datasets (n = 964 and 193, respectively) were used to examine the external validity. Questions in the PSQI were examined by the stepwise multinomial logistic regressions to determine the optimal numbers of items in the RCSSQ. On the premise of item parsimony and instrument validity, the optimal combination of reduced items was determined. Results In the development dataset, the 4-item RCSSQ (RCSSQ-4) was the optimal predictive model. In terms of internal validity, the accuracy rates to identify PSQI-defined poor sleep quality and its subgroups in the developmental dataset by the RCSSQ-4 were 89.0% and 79.9%, respectively. Meanwhile, the RCSSQ-4 also had good external validity in the validation datasets to detect PSQI-defined poor sleep quality (accuracy rates: 89.1–90.7%). Furthermore, the profiles of PSQI component scores and comorbid conditions for the predicted subgroups in the validation dataset were comparable with the criterion standard. Conclusion The RCSSQ-4 is a valid instrument for screening and subgrouping poor sleep quality in community-dwelling older adults. The RCSSQ-4 may help guide tailored interventions under the context of stepped care in the community.
Toward a comprehensive scale of online shopping experiences: a mixed-method approach

PurposeThe objectives of the paper were to develop a theoretical framework of the online shopping experiences (OSE) concept, identify its constituent dimensions and subdimensions, and propose and test a comprehensive measurement scale that would incorporate and reconcile existing fragmented approaches to the phenomenon.Design/methodology/approachThis paper utilized a mixed-method approach to conceptualize a complex phenomenon of online shopping experiences (OSE). Study 1 employed the grounded theory approach to understand the phenomenon, propose its comprehensive definition and a conceptual model. Study 2 developed and tested a comprehensive OSE measurement scale.FindingsThe study conceptualized OSE as a second-order construct with four mutually-connected constituent dimensions of OSE: practices, context, values and emotions, and their respective 21 subdimensions. It developed and validated a comprehensive scale that is superior to earlier proposed fragmented measures of OSE.Research limitations/implicationsThe proposed theoretical framework can serve as a foundation for the OSE research stream and consolidate existing findings by providing a conceptual umbrella for different OSE aspects addressed in earlier research. The OSE measurement scale can be used to assess the impact of each OSE component on satisfaction and loyalty in different shopping situations.Practical implicationsThe findings can assist retailers in evaluating usefulness of various tools in eliciting certain experiential effects, devising specific approaches to consumers at different touch points along their dynamic OSEs and developing engagement tactics for various shopping environments.Originality/valueThe study combined qualitative and quantitative approaches to offer a most comprehensive and unifying conceptualization and measurement instrument of OSEs.
Estimating the Effects of the COVID-19 Outbreak on the Reductions in Tuberculosis Cases and the Epidemiological Trends in China: A Causal Impact Analysis

Objective COVID-19 may have a demonstrable influence on disease patterns. However, it remained unknown how tuberculosis (TB) epidemics are impacted by the COVID-19 outbreak. The purposes of this study are to evaluate the impacts of the COVID-19 outbreak on the decreases in the TB case notifications and to forecast the epidemiological trends in China. Methods The monthly TB incidents from January 2005 to December 2020 were taken. Then, we investigated the causal impacts of the COVID-19 pandemic on the TB case reductions using intervention analysis under the Bayesian structural time series (BSTS) method. Next, we split the observed values into different training and testing horizons to validate the forecasting performance of the BSTS method. Results The TB incidence was falling during 2005–2020, with an average annual percentage change of −3.186 (95% confidence interval [CI] −4.083 to −2.281), and showed a peak in March–April and a trough in January–February per year. The BSTS method assessed a monthly average reduction of 14% (95% CI 3.8% to 24%) in the TB case notifications from January–December 2020 owing to COVID-19 (probability of causal effect=99.684%, P=0.003), and this method generated a highly accurate forecast for all the testing horizons considering the small forecasting error rates and estimated a continued downward trend from 2021 to 2035 (annual percentage change =−2.869, 95% CI −3.056 to −2.681). Conclusion COVID-19 can cause medium- and longer-term consequences for the TB epidemics and the BSTS model has the potential to forecast the epidemiological trends of the TB incidence, which can be recommended as an automated application for public health policymaking in China. Considering the slow downward trend in the TB incidence, additional measures are required to accelerate the progress of the End TB Strategy.
A Cooperative Distributed Problem-Solving Management Framework for Office Automation Systems

The successful design of cost-effective development and executive environments for Office Automation (OA) depends chiefly on infor mation accessibility and flexible open system architecture A groupware management mechanism—Cooperative Distributed Problem-Solving Management Framework (CDPSMF) and its application to Office Automation System (OAS) design are given Recurrent group structure is used to characterize an enterprise or organization Management framework, using the Distributed Artificial Intelligence (DAI) technique and the Object Modeling Technique (OMT), was incorporated into the design of our OA executive environment The following characteristics are emphasized 1) For the sake of consistent, systematic methodology, we simplify management by considering semi-autonomous/modular hardware and soft ware units and also human members uniformly, designating them all as Intelligent Agents (IAs) 2) Because problem requesters face a completely transparent working environment, they need merely to state the general problem specifications and don't need to worry about trivial details such as which IAs are to be used and how they should work together to solve the problem in question 3) An interface or Customized Personal Working Platform is designed It provides the user with a full set of personalized facilities and tools specialized for the user's needs, i e , the supervision of progress rates, the arrangement of schedules, CAD, various auxiliary tools, etc It is also suitable for use as a computerized checkup system so as to raise the whole enterprise performance A prototype OAS has been completed and used as project management among our laboratory colleagues
Synthesis, Characterization and Structure Properties of Biobased Hybrid Copolymers Consisting of Polydiene and Polypeptide Segments

Novel hybrid materials of the PB-b-P(o-Bn-L-Tyr) and PI-b-P(o-Bn-L-Tyr) type (where PB: 1,4/1,2-poly(butadiene), PI: 3,4/1,2/1,4-poly(isoprene) and P(o-Bn-L-Tyr): poly(ortho-benzyl-L-tyrosine)) were synthesized through anionic and ring-opening polymerization under high-vacuum techniques. All final materials were molecularly characterized through infrared spectroscopy (IR) and proton and carbon nuclear magnetic resonance (1H-NMR, 13C-NMR) in order to confirm the successful synthesis and the polydiene microstructure content. The stereochemical behavior of secondary structures (α-helices and β-sheets) of the polypeptide segments combined with the different polydiene microstructures was also studied. The influence of the α-helices and β-sheets, as well as the polydiene chain conformations on the thermal properties (glass transition temperatures, thermal stability, α- and β-relaxation) of the present biobased hybrid copolymers, was investigated through differential scanning calorimetry (DSC), thermogravimetric analysis (TGA) and dielectric spectroscopy (DS). The obtained morphologies in thin films for all the synthesized materials via atomic force microscopy (AFM) indicated the formation of polypeptide fibrils in the polydiene matrix.
Ability of the ISAS3Fun Method to Detect Sperm Acrosome Integrity and Its Potential to Discriminate between High and Low Field Fertility Bulls

Simple Summary The objective of the present study was to investigate whether differences in bull fertility are associated with variations of sperm quality. Differences between high- and low-fertility bulls were found mainly in parameters related to sperm acrosome integrity when using a new fluorescence method that allows clear and precise detection of the sperm plasma membrane and acrosome: the ISAS3Fun method. It was concluded that the simultaneous assessment of sperm viability and acrosome integrity with the ISAS3Fun method is precise and seems to have a greater potential to discriminate between high- and low-fertility bulls than the more conventional in vitro sperm quality test. These results may help to predict the breeding soundness of bulls used in artificial insemination, which is important for the dairy industry. Abstract The objective of the present study was to investigate whether fertility differences in bulls are reflected in variations of sperm quality when analysing only one ejaculate per male. Two experiments were performed. In the first experiment, frozen semen samples from 20 adult bulls were tested; 10 bulls had high field fertility and 10 bulls had low field fertility. Analyses of sperm motility, membrane integrity, and membrane–acrosome integrity with the ISAS3Fun method were performed. Sperm morphometry of the fluorescence sperm subpopulations obtained with the ISAS3Fun method was also analysed. Significant differences between high- and low-fertility groups were only found with the ISAS3Fun technique, specifically in sperm acrosome integrity, the proportion of spermatozoa with an intact acrosome and damaged membrane, and in sperm head width of spermatozoa with intact structures. Discriminant analyses allowed us to correctly classify 90% of sperm samples in their fertility group using sperm quality parameters. Given that only the results obtained with the ISAS3Fun technique were related to bull fertility, we performed a second experiment aimed to validate the efficacy of this technique to detect the acrosomal integrity of bull spermatozoa, comparing them with the conventional FITC-PNA/propidium iodide (PNA/PI) combination under capacitating conditions. The results indicated that the ISAS3Fun combination provided an accurate assessment of both viability and acrosomal integrity for ejaculated spermatozoa, while the PNA/PI combination underestimated the extension of acrosomal damage due to false negatives. It was concluded that the simultaneous assessment of sperm plasma membranes and acrosome integrity with the ISAS3Fun method is precise and seems to have a greater potential to discriminate between high- and low-fertility bulls than more conventional in vitro sperm quality tests.