bluuebunny/crossref_metadata_2025 huggingface dataset:
Framework for Digital Development in Industrialized Housebuilding
Authors: Lennartsson Martin , Yitmen Ibrahim , Movaffaghi Hamid , Linderoth Henrik
Published: December 2020

Building Information Modelling (BIM) is claimed to transform the Architecture, Engineering and Construction (AEC) industry, whereas current research has argued that diffusion of BIM use proceeds at a slower rate than the optimistic predictions. Despite that potential of BIM is higher in industrialized housebuilding, the trade express similar characteristics as traditional construction both in terms of BIM sue but also organization of assets. The aim of this paper is to present a conceptual framework for digital development in industrialized timber housing. Data were gathered from eight industrialized housebuilding companies in a mixed approach with interviews, focus groups and a survey. The analysis presents the current use of BIM and digital tools and prioritized development areas within this domain. By adding a theoretical overview of current research for industrialized housebuilding with focus on platform strategies and digital development a framework is drawn. Problems with transfer in the interfaces between software were emphasized. Current research on developing a system for Product Lifecycle Management (PLM) in industrialized housebuilding indicate a path forward. A PLM system facilitates the development of digital developments such as digital twins and smart products, which possess the potentials to generate crucial feedback, which is crucial for the competitiveness and efficiency of industrialized housebuilding. Thus, for a trade with high levels of complexity, a move towards a fully functional PLM system might not only be desirable but decisive.
Towards Improving Process Control in Sheet Metal Forming: A Hybrid Data- and Model-Based Approach
Authors: Tatipala Sravan , Wall Johan , Larsson Tobias , Johansson Christian , Sigvant Mats
Published: December 2020

Ability to predict and control involved parameters and hence the outcome of sheet metal forming processes demand holistic knowledge of the product/-process parameter influences and their contribution in shaping the output product quality. Recent improvements in the ability to harvest inline production data and the capability to understand complex process behaviour through computer simulations opens up the possibility for new monitoring and control approaches for improving production process performance and output product quality. Current work presents a framework for monitoring and control of sheet metal forming processes which incorporates a hybrid dataï£¡and modelï£¡based approach. An initial attempt to evaluate the proposed frameworks’ ability to support output product quality and process performance enhancements is made by implementing the proposed approach via an in-house built wire-bending machine prototype. Initial experiments conducted using the built prototype indicate that the proposed framework has the potential to support such enhancements and further work is needed to validate the overall framework.
Production Logistics Visibility – Perspectives, Principles and Prospects
Authors: Kalaiarasan Ravi , Olhager Jan , Wiktorsson Magnus , Jeong Yongkuk
Published: December 2020

Globalisation, competitive markets and increasing sustainability requirements are demanding companies to focus on visibility to improve their supply chains and ultimately their businesses. This paper aims to identify perspectives, principles and prospects of production logistics visibility (PLV). The study is based on a literature review of articles presenting definitions, development trends and the future role of PLV. It is concluded that visibility is generally defined by availability, quality, accessibility and usefulness of information. PLV could refer to the extent to which actors within the production systems have access to timely and accurate information considered useful to their operations. According to the findings, antecedents of PLV include digitalisation, IoT and connectivity. These steps are required to turn data into meaningful information that can be used for decision making in production and logistics setting to improve operational and business performance. Furthermore, to fully benefit from PLV, there has to be an integration of external and internal perspectives. Concluding, the paper defines future research efforts including four lines of exploration and development: (1) Intra-site visibility for material management including dynamic synchronisation, takt and resource planning. (2) Supply-oriented visibility for dynamic status and prediction of supply network status. These two initial lines of enquiry should include the perspectives of stakeholders, parameter, enabling technologies and potential impact. (3) A synthesised framework for Production Logistics Visibility, relying on utilizing antecedents and enabling multi-criteria decision in production logistics based on visibility, where performance in terms of efficiency, sustainability and flexibility is ensured. (4) To specifically detail and exploit the potential in production logistics visibility in the aspect of environmental sustainability and closed material and product loops.
Evaluation of Reconfigurability in Brownfield Manufacturing Development
Authors: Boldt Simon , Rösiö Carin
Published: December 2020

To enable manufacturing firms adapting their manufacturing capabilities to meet the market demands in a cost-efficient way the concept of reconfigurable manufacturing was initiated. A majority of the research within this field targeting production development has been focused on greenfield development methods, enabling the developers to ignore context and constraints that brownfield development methods cannot. The greenfield focus in reconfigurability research has resulted in how to find optimal solutions to reconfiguration problems. Taking a brownfield focus on reconfigurable manufacturing development would enable to move step-by-step towards a reconfigurable manufacturing strategy instead of the all-or-nothing approach of greenfield development methods. This study investigates through a literature review what assessment tools and methods that exists in literature, and classifies them into four categories, i.e. Configuration evaluation, Element of evaluation, Pre-design evaluation, and Potential evaluation. It is found that there only exist two assessment tools for potential evaluation. Through a multiple case study, the potential evaluation process is evaluated, and three gaps is identified, i.e. lack of connection to strategy, lack of predefined goals for reconfigurability, and the difficulty in interpreting the result of the analysis. These gaps are then address in a new conceptual assessment process for assessing the potential of reconfigurability. The conceptual assessment process links the six reconfigurability characteristics throughout the whole assessment process to link manufacturing strategy to the improvement suggestions.
Interconnecting Product and Manufacturing Domains: A Literature Review
Authors: Wlazlak Paraskeva , Andersen Ann-Louise , Raudberget Dag
Published: December 2020

Research on product-process modelling has been significant over the last decade. In this paper, we present a literature review of 13 papers published in journals and conference proceedings between 2012–2019. The purpose of this paper is to review and classify the literature on integrated product-process modelling utilizing ontologies. Specifically, the objectives of the paper are; (1) to develop a classification framework that is based on the existing research on integrated product-process modelling; (2) to use the classification framework to synthesize what is known in this research area (qualitative issues that have been raised that are useful for both researchers and practitioners); (3) to use the classification framework to propose future avenues in this research area. The classification framework consists of three major categories; namely, (1) integrated product-process model’s application; (2) approaches to modelling; and (3) practical challenges for implementation of integrated product-process models. The classification of the published literature and the analysis provides insights for practitioners and researchers on the creation and accumulation of knowledge in the product-process modelling area and interconnecting of product and manufacturing domains. This paper is intended to highlight the importance of integrated product-process models utilizing ontologies and identify areas for future research areas.
Maturity Framework Enabling Organizational Digital Readiness
Authors: Machado Carla G. , Almström Peter , Öberg Anna E. , Kurdve Martin , Almashalah Sultan Y.
Published: December 2020

Digitalization and the use of advanced technologies for more flexible and resource efficient production processes are changing the industrial competitive environment. However, new technologies are not seldom implemented without the whole organization being ready to fully utilize its benefits. This readiness can be expressed as organizational digital maturity. Previous studies identified that the level of digitalization is increasing, but, in many cases, due to lack of foundation, it is not aligned with the business strategy and/or supported by the organizational and technological infrastructures. There is a gap in existing models to provide practical starting-up steps to support the organizational digital readiness. A conceptual readiness framework for organizational digital readiness was tested through the analysis and reflection of four cases implemented by a Swedish manufacturing company. Findings point out that it is important to create a proper organizational foundation, a readiness, to ensure a company to evolve in digital maturity. That can be developed based on three main stages of change management practices. The tool can be used to identify the organizational readiness and thereby the gaps and thresholds necessary to overcome. This will enable companies to utilize the technology level necessary to increase cost and resource efficiency, and hence competitiveness. In addition, dimensions and a roadmap for organizational, digital, and smart readiness is presented.
Lead-Time Effect Comparison of Additive Manufacturing with Conventional Alternatives
Authors: Kurdve Martin , Persson Karl-Eric , Widfeldt Magnus , Berglund Johan , Drott Alexander
Published: December 2020

This single case study used value stream mapping as input data to analyse alternatives for production of quenching tools in an on-site tool department of an automotive manufacturer. The existing manufacturing organised as a functional workshop was compared to the alternatives, adding an additive manufacturing cell or a conventional automated cell, with regards to lead-time and needed process changes. The results indicate that lead-time savings should not be the only reason for considering additive manufacturing. When it is beneficial for design and product functionality improvements, however, lead time improvements may give a contribution to the business case.
Upregulation lnc-NEAT1 contributes to colorectal cancer progression through sponging miR-486-5p and activating NR4A1/Wnt/β-catenin pathway
Authors: Liu Zhining , Gu Yimei , Cheng Xiaohu , Jiang Heng , Huang Yang , Zhang Yingfeng , Yu Gang , Cheng Yunsheng , Zhou Lianbang
Published: December 2020

Colorectal cancer is a major public health problem and fourth guiding cause of cancer-induced mortality worldwide. The five-year survival rate for patients with colorectal cancer remains poor, and almost half of colorectal cancer patients present recurrence and die within five years. The increasing studies showed that long non-coding RNA (lncRNA) was involved in colorectal cancer. Therefore, this study was used to explore molecular mechanisms of nuclear paraspeckle assembly transcript 1 (NEAT1) in colorectal cancer. The real-time quantitative polymerase chain reaction (RT-qPCR) was employed to estimate the expression levels of NEAT1, Nuclear receptor 4 A1 (NR4A1), and miR-486-5p in colorectal cancer tissues and cells. Kaplan-Meier curve was conducted to analyze relationship between survival time of colorectal cancer patients and level of NEAT1. The protein levels of NR4A1, β-catenin, c-Myc, and cyclinD1 were assessed with western blot assay. 3-(4, 5-dimethylthiazol-2-yl)-2, 5-diphenyl-2H-tetrazol-3-ium bromide (MTT) and flow cytometry assays were performed to evaluate proliferation and apoptosis of colorectal cancer cells, respectively. The migration and invasion abilities of cells were examined by transwell assay. The relationship between miR-486-5p and NEAT1 or NR4A1 was confirmed by dual-luciferase reporter assay. We found NEAT1 and NR4A1 were highly expressed in colorectal cancer tissues and cell lines compared with controls. Loss-functional experiments revealed that knockdown of NEAT1 or NR4A1 repressed proliferation and motility, while inducing apoptosis of colorectal cancer cells. The gain of NR4A1 could abolish NEAT1 silencing-induced effects in colorectal cancer cells. In addition, NEAT1 contributed to colorectal cancer progression through mediating NR4A1/Wnt/β-catenin signaling pathway. In conclusion, NEAT1 stimulated colorectal cancer progression via acting as competing endogenous RNA to sponge miR-486-5p and regulate NR4A1/Wnt/β-catenin signaling pathway.
Detection of coronary artery disease in patients with chest pain: A machine learning model based on magnetocardiography parameters
Authors: Huang Xiao , Chen Pengfei , Tang Fakuan , Hua Ning
Published: December 2020

BACKGROUD: Patients with chest pain and suspected of coronary artery disease(CAD) need further test to confirm the diagnosis. Magnetocardiography (MCG) is a non-invasive and emission-free technology which can detect and measure the weak magnetic fields created by the electrical activity of the heart. OBJECTIVE: This study aimed to investigate the usefulness of the 10 MCG parameters to detect CAD in patients with chest pain by means of a machine learning method of multilayer perceptron(MLP) neural network. METHODS: 209 patients who were suffering from chest pain and suspected of CAD were enrolled in this cross-sectional study. In all patients, 12-lead electrocardiography(ECG) and MCG test were performed before percutaneous coronary angiography(PCA). 10 MCG parameters were analyzed by MLP neural networks. RESULTS: 11 diagnostic models(M1 to M11) were established after MLP analysis. The accuracies ranged from 71.2% to 90.5%. Two models(M10 and M11) were further analyzed. The accuracy, sensitivity, specificity, PPV, NPV, PLR and NLR were 89.5%, 89.8%, 88.9%, 92.7%, 84.7%, 11.10 and 0.11, of M10, and were 90.0%, 91.4%, 87.7%, 92.1%, 86.6%, 7.43 and 0.10, of M11. CONCLUSIONS: By a method of MLP neural network, MCG is applicable in identifying CAD in patients with chest pain, which seems beneficial for detection of CAD.
Role of contrast-enhanced ultrasound guidance in core-needle biopsy for diagnosis of cervical tuberculous lymphadenitis
Authors: Zhao Dan , Shao Ya-Qin , Hu Jun , Liu Dan , Tang Wei , He Ning
Published: December 2020

OBJECTIVE: To investigate the diagnostic value of core-needle biopsy (CNB) guided by contrast-enhanced ultrasound (CEUS) in cervical tuberculous lymphadenitis (CTL). METHODS: 178 patients with pathological confirmation of CTL were retrospectively enrolled. All of them had undergone CNB prior to the final surgery. According to the different ways of puncture guidance, they were divided into two groups: conventional ultrasound (US) group (n = 81) and CEUS group (n = 97). The comparison of diagnostic efficacy between two groups was compared and analyzed. RESULTS: Among the 178 patients, 146 were directly diagnosed as CTL by CNB, including 59 patients in CEUS group and 87 patients in US group. The diagnostic accuracy were 89.7% (87/97) and 72.8% (59/81), respectively (P < 0.01). For subgroup analyses, differences among diagnostic efficacy ascribed to the different guiding methods were significant in medium size group (>2.0 cm and ≤3.0 cm) and large size group (>3.0 cm), 91.7% for CEUS group vs. 69.0% for US group (P < 0.05) and 84.4% for CEUS group vs. 57.7% for US group (P < 0.05), respectively. CONCLUSIONS: In the diagnosis of CTL, compared with the US-guided CNB, CEUS-guided CNB have certain advantages, especially for larger lymph nodes.
The roles of miRNAs’ clinical efficiencies in the colorectal cancer pathobiology: A review article
Authors: Eshghifar Nahal , Badrlou Elham , Pouresmaeili Farkhondeh
Published: December 2020

MiRNAs (microRNAs) are defined as micro directors and regulators of gene expression. Since altered miRNA expression is signified in the pathobiology of diverse cancers such as colorectal cancers (CRCs), these molecules are described as therapeutic targets, either. Manipulation of miRNAs could lead to further therapy for chemo and radio-resistant CRCs. The usage of microRNAs has indicated prominent promise in the prognosis and diagnosis of CRC, because of their unique expression pattern associated with cancer types and malignancies. Nowadays, many researchers are analyzing the correlation between miRNA polymorphisms and cancer risk. With continuous incompatibility in colorectal cancer (CRC) miRNAs expression data, it is critical to move toward the content of a “pre-laboratory” analysis to speed up efficient accuracy medicine and translational study. Pathway study for the highest expressed miRNAs- regulated target genes resulted in the identification of a considerable number of genes associated with CRC pathway including PI3K, TGFβ, and APC. In this review, we aimed to collect fruitful information about miRNAs and their potential roles in CRC, and provide a meta-analysis of the most frequently studied miRNAs in association with the disease.
Rapid design of aircraft fuel quantity indication systems via multi-objective evolutionary algorithms
Authors: Judt David , Lawson Craig , van Heerden Albert S.J.
Published: December 2020

The design of electrical, mechanical and fluid systems on aircraft is becoming increasingly integrated with the aircraft structure definition process. An example is the aircraft fuel quantity indication (FQI) system, of which the design is strongly dependent on the tank geometry definition. Flexible FQI design methods are therefore desirable to swiftly assess system-level impact due to aircraft level changes. For this purpose, a genetic algorithm with a two-stage fitness assignment and FQI specific crossover procedure is proposed (FQI-GA). It can handle multiple measurement accuracy constraints, is coupled to a parametric definition of the wing tank geometry and is tested with two performance objectives. A range of crossover procedures of comparable node placement problems were tested for FQI-GA. Results show that the combinatorial nature of the probe architecture and accuracy constraints require a probe set selection mechanism before any crossover process. A case study, using approximated Airbus A320 requirements and tank geometry, is conducted and shows good agreement with the probe position results obtained with the FQI-GA. For the objectives of accessibility and probe mass, the Pareto front is linear, with little variation in mass. The case study confirms that the FQI-GA method can incorporate complex requirements and that designers can employ it to swiftly investigate FQI probe layouts and trade-offs.
Machine Learning-Supported Analyses Improve Quantitative Histological Assessments of Amyloid-β Deposits and Activated Microglia
Authors: Bascuñana Pablo , Brackhan Mirjam , Pahnke Jens
Published: December 2020

Background: Detailed pathology analysis and morphological quantification is tedious and prone to errors. Automatic image analysis can help to increase objectivity and reduce time. Here, we present the evaluation of the DeePathology STUDIO™ for automatic analysis of histological whole-slide images using machine learning/artificial intelligence. Objective: To evaluate and validate the use of DeePathology STUDIO for the analysis of histological slides at high resolution. Methods: We compared the DeePathology STUDIO and our current standard method using macros in AxioVision for the analysis of amyloid-β (Aβ) plaques and microglia in APP-transgenic mice at different ages. We analyzed density variables and total time invested with each approach. In addition, we correlated Aβ concentration in brain tissue measured by ELISA with the results of Aβ staining analysis. Results: DeePathology STUDIO showed a significant decrease of the time for establishing new analyses and the total analysis time by up to 90%. On the other hand, both approaches showed similar quantitative results in plaque and activated microglia density in the different experimental groups. DeePathology STUDIO showed higher sensitivity and accuracy for small-sized plaques. In addition, DeePathology STUDIO allowed the classification of plaques in diffuse- and dense-packed, which was not possible with our traditional analysis. Conclusion: DeePathology STUDIO substantially reduced the effort needed for a new analysis showing comparable quantitative results to the traditional approach. In addition, it allowed including different objects (categories) or cell types in a single analysis, which is not possible with conventional methods.
Motion induced eddy current based testing method for the detection of circumferential defects under circumferential magnetization
Authors: Wang Rongbiao , Tang Jian , Deng Zhiyang , Kang Yihua
Published: December 2020

Magnetic flux leakage (MFL) testing is widely applied in the online detection of steel pipes. Different magnetizing directions are required for the detection of defects in different directions. As the speed of online MFL testing increases, the motion induced eddy current (MIEC) effect becomes significant, and the direction of the MIEC is perpendicular to defects in the same direction as the magnetization. Therefore, the magnetic field signal generated by the MIEC perturbation is analyzed by simulation and compared with MFL signal. It is found that the amplitude of the magnetic field signal generated by the MIEC perturbation increases with the rise of the rotational speed and magnetization. In high rotational speed and strong magnetization, the amplitude of the magnetic field signal caused by MIEC perturbation is greater relative to the amplitude of the MFL signal, providing a possibility for detecting defects that are parallel to the direction of magnetization.
Experimental investigation of angle dependent torque properties of a particle rotary damper using a magnetic elastomer particle assemblage
Authors: Kalaiselvan Kathir Kishan , Ido Yasushi , Iwamoto Yuhiro , Toyouchi Atsushi
Published: December 2020

Typical particle rotary dampers generate constant torque throughout the cycle of rotation. However, this research is focused on generating angle dependent torque i.e. different torque at different angles. The damper is designed to generate an elevated torque at a specific angle. This can be achieved by employing ferromagnetic particles and by introducing a permanent magnet in the damper. This study is carried out using two major parameters I) base torque which is the measure of damping capacity and II) percentage increase in torque which is the measure of angle dependency. From the experimental investigations, it has been found that I) base torque increases with packing fraction and rotational speed and decreases conditionally with the amount of carbonyl iron present in the particle while II) percentage increase in torque decreases with packing fraction, remains constant with rotational speed and increases conditionally with the amount of carbonyl iron present in the particle.
Measurement of frequency characteristics of disturbance torque in the process of satellite antenna rotation
Authors: Gao Bo , Xu Minglong
Published: December 2020

As an important equipment for satellite signal reception and transmission, the satellite antenna needs to be rotated in real time to achieve real-time tracking of the target and complete signal transmission during applications. Antenna driving mechanism is generally composed of motor and other components, which will cause some structural vibration during rotation. For high-stability satellite applications, the vibration disturbance torque is a major factor affecting the satellite stability. In order to study characteristics of the disturbance torque, the disturbance data from the antenna under different rotation conditions should be measured. In this paper, the frequency characteristics of disturbance torque of a rotating satellite antenna using stepper motor as driving motor is tested and discussed.
Financial performance of intelligent manufacturing enterprises based on fuzzy neural network and data twinning
Authors: Fucheng Tan
Published: December 2020

As we enter the 21st century, with the rapid development of information technology and advanced manufacturing technology and the rapid development of intelligent manufacturing in China, the national investment in intelligent manufacturing research has increased greatly. And in this field to establish research projects; our intelligent manufacturing has been in-depth development of the moment. Assessing the financial performance of a company is to assess the profitability, sustainability and growth ability of a listed company and plays an important role in reducing investment risk, safety and security. This document assesses the financial performance of intelligent manufacturing enterprises by studying and analyzing the improvement of financial management model in intelligent manufacturing model and the optimization of cost involved. Based on fuzzy neural network and data generation technology, this helps to improve the competitive advantage of enterprises and achieve sustainable development and change.
Application of virtual reality technology and digital twin in digital media communication
Authors: Li Ma , Wenjie Shao
Published: December 2020

Virtual reality emerged as an interactive, dynamic and dynamic technology in the early 1980 s. recently, with the introduction of advanced digital (DT) concept and its application in space, it has great advantages in information integration. virtual integration, real-time dynamic optimization decision-making and so on are helpful to solve these problems. means making full use of physical models and data (product design data, historical run data, service recovery data, etc.) to accomplish tasks. Replicating physical space in virtual space and applying virtual reality and digital mirror image to the production of digital media can help news integrate all content, display the whole process, avoid problems, close circuits, optimize repeated operations, Make dynamic decisions in real time. The goal is to realize the interaction and integration between the real world environment and the virtual space of the digital environment in order to realize the harmony between the virtual real space in the whole life cycle.
Analysis of computer teaching pattern based on outlier data mining and machine learning
Authors: Huafeng Li
Published: December 2020

Under the background of the development of the new era, with the arrival of the big data era and the development of computer technology, people are more and more inclined to use data to analyze all kinds of problems encountered in teaching. Different educational data models are constructed through data analysis. By statistics of different educational data and analysis using correlation models, the relationship between different variables and the intensity of interaction in these activities can be determined. Using computer to complete some teaching tasks and construct a certain teaching mode can improve the efficiency of teachers’ teaching and students’ learning to a certain extent. In the process of discussing the use of computer in classroom teaching, we should analyze how to use computer to carry out new forms of teaching activities and how to evaluate the teaching quality of computer teaching. On the one hand, this paper summarizes the current situation of the development of digital teaching mode in colleges and universities in China; on the other hand, it analyzes the research results of computer teaching by professionals in the new era; Finally, the knowledge of data mining is expounded.
Wireless body area network mutual trust analysis technique for fault detection using software defined network (SDN)
Authors: Manickavasagam B. , Amutha B. , Revathi M. , Karthick N. , Sree Kumar K. , Priyanka K.
Published: December 2020

Wireless Sensor Node (WSN) helps to track inpatient and remote patient (home/working) health information. Mishandling of the electronic system, patient behaviour and environmental changes which are all lead to incorrect data generation while using WSN for medical purposes. It leads to a false alarm being raised, network resource wastage, a false node priority level and low reliability. We have introduced the Mutual Trust Model (MTM) for Wireless Body Area Network (WBAN) with the help of Fog-Node (FN) to address these issues and to ensure the trustworthiness of the information acquired. In this, First-Hand Trust Method calculates the confidence value of the individual sensor node. Then, with neighbor node support, the Stigmercy Trust Method (STM) is implemented to reinforce the trust source node. Ultimately, the individual patient’s confidence value for the MTM model is determined. With the assistance of the wireless-mininet network emulator and the RYU controller, the network environment model implement, and the results have been obtained. MTM predicts the confidence level of the collected data significantly and produces an accuracy of 92.3 percentage to prevent the emergency band from being used dispensable.
Self-adaptive bacterial foraging algorithm based on estimation of distribution
Authors: Ni Na , Zhu Yuanguo
Published: December 2020

Bacteria foraging optimization (BFO) algorithm is easy to fall into the local optimal solution and slow in convergence. In this paper, we have come up with a self-adaptive bacterial foraging algorithm based on estimation of distribution to overcome the mentioned shortages. First, in the chemotactic operator, the swimming step size of bacterium is adaptively adjusted by its fitness value and bacteria move in a random direction. Second, the bacteria obtain the probability of replication based on the fitness value. We choose half of the population for replication by the roulette wheel method. Finally, the possibility of elimination-dispersal is adjusted by the fitness value. Selected bacteria are dispersed to the new locations produced by BOX-Muller formula. Compared with some relative heuristic algorithms on finding the optimal value of ten benchmark functions, the proposed algorithm shows higher convergence speed and accuracy.
Research on spatial planning evaluation of Beijing Shanghai high speed railway station based on node-place model
Authors: Gui Wangyang , Zhang Xu , Wang Ai
Published: December 2020

The construction of high-speed rails is regarded as a major opportunity for urban development by local governments in China, so various grand development plans are actively formulated to promote urban economic development. In this paper, the development of station space is evaluated empirically based on the calculated node and place values of 24 high-speed rail stations along the Beijing-Shanghai line and Bertolini’s “node-place” model. The results show that: (1) The 24 stations along the Beijing-Shanghai line have different development scale, which mostly act as sub-centers of the city, where the real estate industry, modern service industry and cultural industry are dominated in station space planning. Moreover, local governments are optimistic about the accelerant effect of high-speed rail stations whose functional configuration along the line is relatively repeated, because all 24 stations are basically set with business centers. (2) The size of cities along the Beijing-Shanghai line is related to the node value, the higher the urban function level, the greater the node value, with great differences among cities. The node value of big cities is far higher than that of small and medium-sized cities, hence there are node-oriented station areas in big cities and place-oriented ones in middle-sized and small cities. However, there is no direct relationship between the urban function level of stations along the line and the value of urban places. In some small and medium-sized cities, the planning and development intensity and scale of station areas even exceed that of big cities. (3) Only Wuxi station and Nanjing station are in a balanced development state in the space planning of railway stations along the Beijing-Shanghai line. Therefore, the risk of long-term development of station area should be considered in the planning, and reasonable measures should be formulated to promote the sustainable development of station area, so as to form the overall development of Station City.
Learning time-frequency mask for noisy speech enhancement using gaussian-bernoulli pre-trained deep neural networks
Authors: Saleem Nasir , Khattak Muhammad Irfan , Al-Hasan Mu’ath , Jan Atif
Published: December 2020

Speech enhancement is a very important problem in various speech processing applications. Recently, supervised speech enhancement using deep learning approaches to estimate a time-frequency mask have proved remarkable performance gain. In this paper, we have proposed time-frequency masking-based supervised speech enhancement method for improving intelligibility and quality of the noisy speech. We believe that a large performance gain can be achieved if deep neural networks (DNNs) are layer-wise pre-trained by stacking Gaussian-Bernoulli Restricted Boltzmann Machine (GB-RBM). The proposed DNN is called as Gaussian-Bernoulli Deep Belief Network (GB-DBN) and are optimized by minimizing errors between the estimated and pre-defined masks. Non-linear Mel-Scale weighted mean square error (LMW-MSE) loss function is used as training criterion. We have examined the performance of the proposed pre-training scheme using different DNNs which are established on three time-frequency masks comprised of the ideal amplitude mask (IAM), ideal ratio mask (IRM), and phase sensitive mask (PSM). The results in different noisy conditions demonstrated that when DNNs are pre-trained by the proposed scheme provided a persistent performance gain in terms of the perceived speech intelligibility and quality. Also, the proposed pre-training scheme is effective and robust in noisy training data.
A body-shaped lumbar-sacral support for improving car-seat comfort
Authors: Naddeo Alessandro , Di Brigida Liliana , Fontana Carlotta , Montese Jessica , Quartuccia Manuel , Nasti Mario , Pisani Matteo Maria , Turco Vito , De Stefano Marco , Fiorillo Iolanda , Califano Rosaria
Published: December 2020

BACKGROUND:

Nowadays, the ergonomic study of the driving position is a critical aspect of automotive design. Indeed, due to the rising needs on the market, one focus for car industries is to improve the perceived comfort related to the cars’ interior. Driving a car for a prolonged time could cause complaints in some body-regions, especially in the lumbar-sacral area. Thus, special lumbar-sacral supports for driver seat has been proposed for reducing this kind of complaints.

OBJECTIVE:

Development of two virtual and physical models of lumbar-sacral support for improving both the lumbar/sacral and overall perceived comfort while driving.

METHODS:

Two prototypes of lumbar/sacral support have been realized: the first one was integrated into the seat, and the second one was shaped as a removable pillow (removable support). Fifty participants were asked to rate the perceived comfort in lab tests performed on a seating-buck by comparing three configurations (5 min each): a standard seat, seat with the removable support, seat with integrated support. Subjective data (by questionnaires) and objective data (interface pressure between backrest and driver) have been acquired and statistically processed. In addition, real driving tests have been performed to test the actual performance of the removable support in term of perceived comfort comparing it with the standard seat.

RESULTS:

Statistical correlations between subjective and objective data showed interesting results in comfort improvement through the adopted solutions. Real driving tests showed an improvement in comfort perception with the lumbar-sacral support towards the standard seat.

CONCLUSIONS:

Thanks to the virtual prototyping and the application of previous knowledge, coming from literature and experience, a solution for improving the overall comfort and reduce the lumbar/sacral pain while driving has been developed, tested, and assessed.
A model-based approach for the analysis of aircraft seating comfort
Authors: Vanacore Amalia , Lanzotti Antonio , Percuoco Chiara , Capasso Agostino , Vitolo Bonaventura
Published: December 2020

BACKGROUND:

Aircraft seating comfort has a significant impact on passenger on-board experience. Its assessment requires the adoption of well-designed strategies for data collection as well as appropriate data analysis methods in order to obtain accurate and reliable results.

OBJECTIVES:

This paper focuses on the assessment of aircraft seating comfort based on subjective comfort responses collected during laboratory experiments and taking into account seat features and passenger characteristics.

METHODS:

The subjective comfort evaluations have been analyzed using a model-based approach to investigate the relationship between overall seating comfort and specific seat/user characteristics.

RESULTS:

The results show that the overall seating comfort perception is significantly influenced by the thickness of the seat pan, the backrest position (upright or reclined), the age of the passenger and the passenger perception of being comfortably supported at the lumbar region.

CONCLUSIONS:

The adopted model-based approach allows the analysis of subjective seating comfort data taking into account their ordinal nature as well as the dependency between evaluations provided by the same subject.
Ethno–medicobotany of Yavatmal District (M.S.) India
Authors: Chavan V N , Bhogaonkar P Y , Dhole P A , Kshirsagar P P
Published: December 2020

Yavatmal district is inhabited by about 14 tribal communities. First hand ethnomedicinal information was collected directly from field survey of tribal villages and forest areas of the district. Present paper deals with ethno medicinal uses of 78 plant species belonging to 47 families used locally for prevention and treatment of various diseases. Sixty two species are used in mono-herbal treatments, while 29 are used in poly-herbal formulations. Observations regarding exploitation of these species are also reported, which will help in conservation and restoration of the species.
SELF-REPORTED SUDDEN ONSET HYPOSMIA: AN EARLY PRESENTATION OF SARS COV-2 INFECTION
Authors: Khan Liaqat Ali
Published: December 2020

The present outbreak of COVID-19 started in December 2019 in Wuhan, a city in Hubei province in China. The World health organization labeled the disease a global pandemic on March 11, 2020. The disease is caused by a virus called severe acute respiratory coronavirus-2 (SARS CoV-2). The individuals may remain asymptomatic or present with symptoms of infection. The common presenting symptoms include but are not limited to fever, dry or productive cough, malaise. Contrary to the typical clinical presentation of COVID-19, the patients may present with non-specific symptoms of olfactory or gustatory origin. The olfactory symptoms include hyposmia or anosmia. Physicians may be vigilant to screen and isolate patients with sudden onset hyposmia or anosmia, an early indication of infection that will minimize person-to-person transmission and will contain the virus spread.
Keywords: COVID-19, SARS CoV-2, Hyposmia, Anosmia, Physician.
Raporty żydowskiego „informatora” z warszawskiego getta [oprac.Christopher R. Browning i Izrael Gutman]
Authors: Gutman Yisrael , Browning Christopher R.
Published: December 2020

W relacjach z życia gett pod okupacją nazistowską często mówi się o dużej liczbie żydowskich „informatorów” pracujących dla Niemców. Na przykład Emanuel Ringelblum odnotował w getcie warszawskim około czterystu „informatorów”, choć miał wrażenie, że to liczba zawyżona. Uważał bowiem, że nawet gdyby ta liczba odpowiadała prawdzie, trudno byłoby wytłumaczyć zakres prowadzonej w getcie pod nosami Niemców nielegalnej działalności. Dotychczas nie odnaleziono żadnych dokumentów niemieckich zawierających raporty „informatorów”, ale w Archiwum Yad Vashem znajdują się kopie dziewięciu „raportów tygodniowych” i jeden raport uzupełniający, dotyczący getta warszawskiego z okresu od 24 marca do 19 maja 1942 roku, łącznie 110 stron. Nie dziwi fakt, że ani autor raportów, ani osoba, dla której zostały one sporządzone, nie zostali wymienieni z nazwiska, jednak kontekst wyraźnie wskazuje, że raporty zostały napisane przez osobę mieszkającą w getcie warszawskim i były skierowane do niemieckiego czytelnika, który na przykład musiał być wprowadzony w zasady żydowskiej diety w trakcie Paschy, aby zrozumieć ich wpływ na ceny żywności. Dokumenty te dotarły do Yad Vashem z Polski przez Zentrale Stelle der Landesjustizverwaltungen w Ludwigsburgu, w Niemczech Zachodnich. Poniższa dokumentacja – w tym cały raport z 7 kwietnia oraz wyjątki z innych raportów tygodniowych – stanowi mniej niż jedną czwartą całości materiałów.
“That load of Jews is finally dead.” Extermination of Jews as presented in 1942 letters of German soldiers
Authors: Zaremba Marcin
Published: December 2020

The Home Army intelligence intercepted letters written by German officers and clerks to their families as well as those sent from Germany to friends and relatives on the front line. On the basis of that correspondence the Polish underground draftedspecial intelligence reports, which were sent to London. The selection of letters devoted to the Holocaust presented in this article can make it easier to describe and understand the stances and opinions of “ordinary Germans” regarding the “final solution.”
Filatelisty w getcie warszawskim przypadki. Historia Franza Konrada
Authors: Person Katarzyna
Published: December 2020

Franz Konrad, the head of the Werterfassung – and institution which seized and secured the property the deported Jews left behind in the Warsaw ghetto – was one of the key figures in the ghetto after the Great Deportation Action. Up to 4,000 ghetto inhabitants worked in the Werterfassung collecting, sorting and transporting looted property. Even though the institution was beieved to be a workplace theat offered relative security, almost all of its employees were deported in April 1943. The article, based on the ghetto inhabitants’ memoirs, stenographic records of Konrad’s trial and his testimonies given right after the war, shows the role he and the property confiscation played both in the everyday life of the ghetto as in the carrying out of Aktion Reinhardt.
Ebu Hanife’de Tekfirin Problematik Boyutu
Authors: Soyal Fikret
Published: December 2020

In the 2nd century of the Hijri calendar, when various believer groups emerged, the fact that Abu Hanifa, one of the first representatives of rational religious discourse, spoke about the subject of religious issues, means laying the foundations of the Sunni understanding of theology afterwards. Indeed, Selefîlik, Asaira and Maturidite maintained his views. During his lifetime, he drew attention with his different methodological approach to Islamic issues. The fact that Abu Hanifa is one of the prominent names in the rationale of religion and that he maintains his identity/stance in the face of ideas and opinions that can be evaluated as ‘taassup’ once again appears in the issue of “the takfir of the people of the Qiblah.” At this point, his position should be seen as standing in a rather moderate line as the name that first introduced the principle of “not declaring the people of the Qiblah,” which is a surrounding principle for believers. In the context of the debates on the Iman-Amel relationship, the examination of the issue of ‘takfir’ in the center of the ‘takfir of the people of the Qiblah’ obliges the researchers to evaluate it in a separate position. The main purpose of the article is to reveal the identity of the people of Qibla with reference to Abu Hanifa and to discuss who this refers to while focusing on the subject of “Takfir.”
Wykonywanie prawa do informacji publicznej przez media
Authors: Niziołek Magdalena
Published: December 2020

Autorka podejmuje zagadnienie realizacji przez media prawa do informacji publicznej. W artykule zostały omówione podstawy prawne realizacji prawa do informacji publicznej, która w polskim systemie prawnym poza podstawami konstytucyjnymi znajduje również swoje odzwierciedlenie w ustawodawstwie zwykłym. Podkreślona została rola, jaką spełniają wolne media w urzeczywistnianiu jawności życia publicznego. Jako że przepisy z zakresu informacji publicznej rodzą liczne wątpliwości, niezbędne było przedstawienie w artykule orzeczeń sądowych zawierających interpretację przepisów dotyczących dostępu do informacji publicznej.
Pomiędzy reklamą a reklamą ukrytą. Rzecz o prawnych aspektach artykułów sponsorowanych i lokowania produktów w polskiej prasie drukowanej i internetowej
Authors: Łoszewska-Ołowska Maria
Published: December 2020

Regulacje prawne dotyczące reklamy w radiu i telewizji są liczne i wyczerpujące. Odmienny stan rzeczy ma miejsce tam, gdzie chodzi o reklamę w prasie drukowanej i internetowej. Publikacja, przywołując normatywną definicję reklamy, zawiera rozważania dotyczące reklamy ukrytej. Choć jest ona zakazana, to walka z tym zjawiskiem jest trudna. W publikacji podjęto próbę spojrzenia na granicę między tym, co dozwolone, a tym, co zakazane przez pryzmat powszechnie stosowanych w prasie drukowanej i internetowej form promocji, jakimi są lokowanie produktów i artykuły sponsorowane.
Türk Kahvesinin Yanına Alman Çikolatasını Kim Koydu? Türkiye'deki Alman Gelinlerin Ulusaşırı Ekonomik Pratikleri
Authors: DENİZ Ayla
Published: December 2020

Dünya genelinde karma evliliklere bağlı göçler artmaktadır. Buna paralel olarak ulusaşırı ekonomik pratikler sürdüren göçmenler içinde evlilik göçmenleri de artmaya başlamıştır. Bu sürecin çeşitli mekânsal yansımaları görülmeye başlanmıştır. Bununla birlikte etnik kimliğin ve evlilik statüsünün gidilen ülkedeki anlamına göre evlilik göçmenlerinin bu pratikleri sürdürmelerinde büyük mekânsal farklılıklar görülmektedir. Bu çalışmada, etnik kimliğin ve evlilik statüsünün, yaygın karma evlilik göçü paterninin tipik bir örneği olmayan Türkiye'deki Alman evlilik göçmenlerinin ulusaşırı ekonomik pratiklerine etkisi ortaya konmaktadır. 7 ilde yaşayan 16 evlilik göçmeniyle yapılan derinlemesine görüşmelere dayanarak, etnik kimliğin ve evlilik statüsünün Türkiye'deki Alman evlilik göçmenlerinin ekonomik pratikler sürdürmelerini desteklemeye hizmet ettiği; bu pratikler yoluyla ulusaşırı ortaklıkların arttığı ve pek çok işin dijitalleşmesinin hızlandığı görülmüştür.