Miracle-dz/UniFAR-FTUs huggingface dataset:
Utilization of the Kelekar River Flow as Micro-Hydro Power Plant

The number of rivers scattered throughout Indonesia can certainly be used as an alternative energy source, one of which is micro-hydro power plants, it is a power plant that uses water resources on a small scale as a turbine drive to produce electrical energy, where the generation of this energy is influenced by water discharge and the height of the water fall. One of the rivers that has a fairly large water discharge is the Kelekar River which is located in the Ogan Ilir Regency area. To calculate the amount of energy generated from the Kelekar River, a prototype micro hydro power plant is designed, then the energy generated from the simulation of the tool will be used as the basis for designing a micro hydro power plant based on actual conditions. From the analysis of water discharge and water fall height based on the condition of the Kelekar river, the design of the tools is obtained as follows: (i) the dimensions of the fast pipe are 0.8 m, (ii) the thickness of the fast pipe is at least 4 mm, (iii) the effective energy height is 3.476 m, (iv) the dimensions of the runner are 0.65 mx 1.50 m, and (v) the power generated is 11.508 kW.
Understanding the Postharvest Phytochemical Composition Fates of Packaged Watercress (Nasturtium officinale R. Br.) Grown in a Floating System and Treated with Bacillus subtilis as PGPR

The physiological changes and phytochemical pathways of processed watercress (Nasturtium officinale R. Br.) undergone during storage are not well known. The objective of this work was to evaluate the respiration rate and the inherent and external quality of watercress inoculated with B. subtilis and packaged as a fresh-cut product and stored at 4 °C for 11 days. Watercress was grown using continuous flotation (FL) in a greenhouse using substrate disinfection and inoculated or not with Bacillus subtilis as a plant-growth-promoting rhizobacteria (PGPR). The fresh-cut watercress respiration rate and phytochemical profile changed during the shelf life. The inherent phytochemical compounds were retained during the storage of the fresh-cut salad bags. The best results were found in watercress grown in a disinfected substrate but were less satisfactory when seeds and substrates were inoculated with PGPR. In general, the external quality and the pigment contents progressively decreased during the shelf life and the browning enzyme activities responsible for phenolic oxidation increased at different intensities throughout storage. At the end of the shelf-life period, the fresh weight loss of the fresh-cut product was less than 1% of the original weight. The results demonstrated that watercress grown in FL is a standardised baby leaf vegetable that is suitable for processing in the fresh-cut industry and for storing for more than 10 days. Unclear results were obtained for Bacillus subtilis in the postharvest period due to the inconsistent responses of the different analysed parameters.
Extended sister-chromosome catenation leads to massive reorganization of the E. coli genome

Abstract In bacteria, chromosome segregation occurs progressively from the origin to terminus within minutes of replication of each locus. Between replication and segregation, sister loci are held in an apparent cohesive state by topological links. The decatenation activity of topoisomerase IV (Topo IV) is required for segregation of replicated loci, yet little is known about the structuring of the chromosome maintained in a cohesive state. In this work, we investigated chromosome folding in cells with altered decatenation activities. Within minutes after Topo IV inactivation, massive chromosome reorganization occurs, associated with increased in contacts between nearby loci, likely trans-contacts between sister chromatids, and in long-range contacts between the terminus and distant loci. We deciphered the respective roles of Topo III, MatP and MukB when TopoIV activity becomes limiting. Topo III reduces short-range inter-sister contacts suggesting its activity near replication forks. MatP, the terminus macrodomain organizing system, and MukB, the Escherichia coli SMC, promote long-range contacts with the terminus. We propose that the large-scale conformational changes observed under these conditions reveal defective decatenation attempts involving the terminus area. Our results support a model of spatial and temporal partitioning of the tasks required for sister chromosome segregation.
A Secure Pseudonym-Based Conditional Privacy-Preservation Authentication Scheme in Vehicular Ad Hoc Networks

Existing identity-based schemes utilized in Vehicular Ad hoc Networks (VANETs) rely on roadside units to offer conditional privacy-preservation authentication and are vulnerable to insider attacks. Achieving rapid message signing and verification for authentication is challenging due to complex operations, such as bilinear pairs. This paper proposes a secure pseudonym-based conditional privacy-persevering authentication scheme for communication security in VANETs. The Elliptic Curve Cryptography (ECC) and secure hash cryptographic function were used in the proposed scheme for signing and verifying messages. After a vehicle receives a significant amount of pseudo-IDs and the corresponding signature key from the Trusted Authority (TA), it uses them to sign a message during the broadcasting process. Thus, the proposed scheme requires each vehicle to check all the broadcasting messages received. Besides, in the proposed scheme, the TA can revoke misbehaving vehicles from continuously broadcasting signed messages, thus preventing insider attacks. The security analysis proved that the proposed scheme fulfilled the security requirements, including identity privacy-preservation, message integrity and authenticity, unlinkability, and traceability. The proposed scheme also withstood common security attacks such as man-in-the-middle, impersonation, modification, and replay attacks. Besides, our scheme was resistant against an adaptive chosen-message attack under the random oracle model. Furthermore, our scheme did not employ bilinear pairing operations; therefore, the performance analysis and comparison showed a lower resulting overhead than other identity-based schemes. The computation costs of the message signing, individual signature authentication, and batch signature authentication were reduced by 49%, 33.3%, and 90.2%, respectively.
Tourism and conserving intangible cultural heritage: Residents’ perspectives on protecting the nüshu female script

ABSTRACT Combining intangible cultural heritage (ICH) with tourism is one way of protecting living culture, and community residents have long been the most important stakeholders in these efforts. This paper explores the relationship between residents’ role in heritage conservation and heritage tourism and determines a means of protecting ICH by introducing a Theory of Planned Behavior (TPB) model and data from a survey and field interviews in Jiangyong, China. The results show that inhabitants’ behavioral attitudes, subjective norms and perceptual behavior control for conserving Nüshu (an ancient and unique women’s written language) have a significant impact on intentions to protect this ICH. The external pressure of subjective norms is more important than any other factor. The sustainable development of tourism and the protection of ICH are complementary, and community involvement is critical for sustaining ICH and developing heritage tourism. Finally, the study highlights several managerial implications.
Development and Validation of the COVID-19 Knowledges and Behavior Questionnaire in a French Population (CoVQuest-CC)

Background: The SARS-CoV-2 pandemic has led most countries to take restrictive measures affecting social activities and individual freedoms to limit viral transmission. It was shown that practical, motivational and social barriers impact on adherence to the isolation and social distancing measures advocated by the health authorities. The purpose of this study was to develop and validate a COVID-19 Knowledges and Behavior Questionnaire adapted to a teenager and adult French population. Methods: CoVQuest-CC was developed by a multidisciplinary team made of infectious diseases physicians, medical virologist, specialists of infectious control, experts of the questionnaires methodology, experts in public health and prevention, and statisticians. CoVQuest-CC was responded to by a big cohort from the general population during their participation in a massive SARS-CoV-2 screening campaign in 2021 in Saint-Etienne, France. Results: The confirmatory factorial analysis yielded good results (CFI = 0.94, TLI = 0.94, RMSEA = 0.04), and confirmed the five-dimensional structure of the questionnaire. Each dimension had a satisfying internal consistency, with Cronbach alphas of 0.83, 0.71, 0.65, 0.72 and 0.83 for transmission knowledge, barrier gesture respect, tests acceptability, home isolation possibility and test practicability, respectively. Conclusions: According to our knowledge, CoVQuest-CC is the first validated, consistent and reliable self-administrated French-specific questionnaire investigating the general population’s knowledge and attitudes towards COVID-19. It shows acceptable psychometric properties and can be use by Public Health teams or caregivers for public health and research purposes. Trial Registration: The study protocol was approved by the IRB ILE-DE-FRANCE 1 (No. IRB: I ORG0009918). All participants were given written and verbal information about the study and gave informed consent to participate. ClinicalTrials.gov identifier (NCT number): NCT04859023.
Fuzzy-PID controller of hydro-turbine regulating system and its simulation model

In the paper ,the construction, control ideal and control arithmetic of Fuzzy-PID controller of Hydro-turbine regulating system are introduced. The switch of the two controller (Fuzzy controller and PID controller) are also discussed. The simulation model of the Fuzzy-PID controller of Hydro-turbine Regulating system is established by the means of using MATLAB. In the end, the simulation result of the Fuzzy-PID control is compared with that of the traditional PID control.
What makes economic globalisation work for sub-Saharan Africa?

ABSTRACT That economic globalisation is theoretically beneficial to developing countries’ growth and development is without doubt; that empirical literature has failed to ascertain the economic benefits of economic globalisation, particularly for developing countries, is again incontestable, but what has not been fully explored are the threshold conditions without which developing countries can make the most out of economic globalisation. This study analyses the preconditions that enhance the growth promoting effects of economic globalisation for sub-Saharan African countries over the period 2005–2020. Robust to alternative measures of economic globalisation, our results show that economic globalisation is desirable as a viable engine for growth in sub-Saharan Africa conditional on addressing country-specific structural weaknesses. A viable policy option is for Sub-Saharan African countries to seriously consider implementing a range of well-thought-out policies – both economic and social – so that the region can reap the full benefits of economic globalisation.
Recovery Strategy for Bipolar Cascading Line Fault of Ultra-high Voltage Direct Current Project

The DC line fault recovery function is of great importance to ultra-high voltage direct current(UHVDC)projects in enhancing operational reliability.First,the impact of UHVDC recovery for the line fault on the security and stability of AC system is analyzed and described in detail by taking UHVDC projects in operation presently as examples.Secondly,both the time sequence of UHVDC bipolar cascading line fault and the system stability characteristics are analyzed,and a three-stage cascading fault recovery strategy is proposed based on the analysis results.The proposed strategy will provide a theoretical guidance for all DC projects to draw up their cascading fault recovery schemes.In the end,an UHVDC project in Southwestern China is taken as an example to verify the efficiency of the proposed strategy.
“We wonder if white peers even want to understand”: Social Work Students’ Experiences of the Culture of Human Interchange

ABSTRACT Diversity curriculum supports students in becoming critically reflexive social workers and advancing their multicultural practice. Often unexamined is how students perceive the explicit curriculum about race and racism and experience the implicit curriculum through the culture of human interchange. Ninty-three social work students completed a survey about their experiences in diversity classes. Using qualitative methods, we examine how students experienced the culture of human interchange in discussions of race and racism. Two themes influence the culture of human interchange: are to the disconnect in instructional praxis, and the contested terrain between marginalized and privileged identities. Implications for instructors have knowledge about U.S. history of race and racism and the systemic barriers for people of color, and to engage in self-reflection.
Numerical simulation on interaction process between impact penetrator and lunar soil particles for lunar subsurface exploration

Unmanned in-situ exploration is an important technique to study the physical and mechanical parameters of lunar composition and evolution. The impact penetrator is an effective device for in-situ detection of the lunar soil profile at predetermined depth. Because of the lack of real lunar soil samples, it is very difficult to study and evaluate the performance of the impact penetrator. In order to truly reflect the interaction between the impact penetrator and lunar soil particles, a simulation model of the lunar soil body was established by means of discrete-element analysis, and the model parameters were matched and verified by the experimental method. Based on this model, the interaction behaviors between the penetrators with different head configurations and the lunar soil body were simulated. The stress field distribution in the lunar soil body and particle movement patterns during the penetrating process were revealed, which reflects the working principle and performance of the penetrator. The numerical simulation on the interaction process between the impact penetrator and lunar soil particles provides a feasible and effective method for the design and optimization of the penetrator, which will contribute to the development of lunar subsurface in-situ exploration technologies.
Machine Learning-Based Classification of Human Behaviors and Falls in Restroom via Dual Doppler Radar Measurements

This study presents a radar-based remote measurement system for classification of human behaviors and falls in restrooms without privacy invasion. Our system uses a dual Doppler radar mounted onto a restroom ceiling and wall. Machine learning methods, including the convolutional neural network (CNN), long short-term memory, support vector machine, and random forest methods, are applied to the Doppler radar data to verify the model’s efficiency and features. Experimental results from 21 participants demonstrated the accurate classification of eight realistic behaviors, including falling. Using the Doppler spectrograms (time–velocity distribution) as the inputs, CNN showed the best results with an overall classification accuracy of 95.6% and 100% fall classification accuracy. We confirmed that these accuracies were better than those achieved by conventional restroom monitoring techniques using thermal sensors and radars. Furthermore, the comparison results of various machine learning methods and cases using each radar’s data show that the higher-order derivative parameters of acceleration and jerk, and the motion information in the horizontal direction are the efficient features for behavior classification in a restroom. These findings indicate that daily restroom monitoring using the proposed radar system accurately recognizes human behaviors and allows early detection of fall accidents.
3D modeling for coal stocktaking of coal yards

Coal stocktaking of coal yards is an important part of power plant fuel management.As a tool in common use at present,the laser computer-based coal stocktaking system adopts triangulation algorithm to fit the 3D data acquired from the surface of the coal pile,so that the surface obtained can approach the surface of the coal pile better.The graph plotted is made more realistic through lighting and blanking.In view of the error of the laser computer-based coal stocktaking system applied in Zhanjiang Power Plant,an improvement was made on the software of the system;the algorithm was optimized by removing closing points and designing independent side growing algorithm as independent subprogram.The improved laser computer-based coal stocktaking system works well in practical measurement.
Effect of Lateral Brace on the Stability of Cable-stayed Concrete Filled Steel Tube Arch Bridge

Using the finite element method,this paper computed and analyzed the stability of cable-stayed concrete filled steel tube arch bridge.Citing the Fourth Bridge over Xiangjiang River in Xiangtan City as an example and adopting the linear elastic characteristic value stable analysis method,the effect of the arrangement position,the arrangement form and the rigidity of the lateral brace on the stability of the bridge were discussed.The result indicated that the arrangement position of the lateral brace played the decisive role in the stability of the cable-stayed concrete filled steel tube arch bridge.The lateral brace lying 3/8 above the deck exerted the greatest impact on the structural stability. The number,rather than the rigidity of the lateral brace,was more likely to increase the stability,so the increase of the lateral brace rigidity played a greater role in the case of equal number of lateral brace.The greater the rigidity of the lateral braces,the higher the stability,and vice versa.Therefore,enlarging the lateral brace tube or changing the characteristics of materials was not an effective way to increase the stability of lateral brace.
Error in Image Processing using Fourier Transform and Fast Fourier Transform

This manuscript aims to find out the error in the operations of Fourier Transform (FT) and Fast Fourier Transform (FFT) in digital image processing. We apply FT to transform the time-domain signal to the frequency domain signal. FT is a basic technique in the field of Mathematical and Engineering works. We use Fourier analysis in digital image processing. The Fourier analysis represents a lot of things such as filters, transformation, representation, encoding, data processing, and valid more fields. The FFT development in recent times is very important for the case of image processing. FFT is very exquisite and ubiquitous work in Enfield of digital image processing. In this paper, we study FT and FFT to demonstrate how it solves relative technology problems in the field of security of images. Also, we analyzed the error when changing the fraction order inside FFT, what changes in the mean square error, and on which fraction order our mean square error is obtained the least.
Economic aspects of weight saving in the design of braced steel frames using BS5950 and EC3

Eurocode 3 and BS 5950 code are usually been used to design braced steel frame. The design concept usually based on connections, where simple method associated with pinned-jointed, semi-continuous method associated with semi-rigid joints or partial strength, and continuous construction associated with rigid-joint. Partial strength joints are considered using moment resistance of connections in plastic hinge analysis of the frame. Semi-continuous design method is used instead of simple design method. This makes it achieve many benefits, for example, shallow and lighter beams, and the connections are geometrically simple, thereby producing more robust frames. The method is expected to save frame weight. This study introduces the design of multi-storey steel frame of a series of two-storey, four-storey, six-storey and eight-storey with three-bays for each case. A comparison is made between simple design and semi-continuous design using (BS 5950:2000 Part1) and (BS EN 1993-1-1:2005). This is intended to show the economic benefits of multi-storey braced steel frame design, based on weight saving in the choice of beams and columns. It is assumed that they have slight influence on the total weight of frame. Their weight is identical for all frames. I and H Rolled cross-sections are adopted for beam and column respectively. Flexible end-plate connections are used as pinned connections for simple constructions, while flush end plate and extended end plate with different geometric sizes are used as partial connection. All connections are governed by standardised tables presented by Steel Construction Institute. The results of the percentage weight savings analysed and evaluated based on the effect of changing connection types, and the steel grade from S275 to S355. The results show that semi-continuous design is more beneficial than simple design method for multi-storey braced steel frames with a steel weight saving is in the range of 6.35-18.85% by BS 5950 and 9.37-15.36% by Eurocode 3 according to design variables
BP neural network-based ship track real-time prediction

The paper proposed the thought of predicting differences of co-ordinates to realize the ship track prediction,and the ship track prediction model based on three-layer BP network was developed.Course and speed as well as difference in longitude and latitude were regarded as the input and output parameters, respectively.Results indicate that it costs less with high accuracy and less parameters,which meets requirements of accuracy,real-time performance,universality for VTS.It shows that the method is effective and feasible.
Analysis and Characterization of the Spread of COVID-19 in Mexico through Complex Networks and Optimization Approaches

This work analyzes and characterizes the spread of the COVID-19 disease in Mexico, using complex networks and optimization approaches. Specifically, we present two methodologies based on the principle of the rupture for the GC and Newton's law of motion to quantify the robustness and identify the Mexican municipalities whose population causes a fast spread of the SARS-CoV-2 virus. Specifically, the first methodology is based on several characteristics of the original version of the Vertex Separator Problem (VSP), and the second is based on a new mathematical model (NLM). By solving VSP, we can find nodes that cause the rupture of the giant component (GC). On the other hand, solving the NLM can find more influential nodes for the entire system’s development. Specifically, we present an analysis using a coupled social network model with information about the main characteristics of the contagion and deaths caused by COVID-19 in Mexico for 19 months (January 2020–July 2021). This work aims to show through the approach of complex networks how the spread of the disease behaves, and, thus, researchers from other areas can delve into the characteristics that cause this behavior.