bluuebunny/crossref_metadata_2025 huggingface dataset:
An Enhanced Pedestrian Visual-Inertial SLAM System Aided with Vanishing Point in Indoor Environments
Authors: Chai Wennan , Li Chao , Zhang Mingyue , Sun Zhen , Yuan Hao , Lin Fanyu , Li Qingdang
Published: November 2021

The visual-inertial simultaneous localization and mapping (SLAM) is a feasible indoor positioning system that combines the visual SLAM with inertial navigation. There are accumulated drift errors in inertial navigation due to the state propagation and the bias of the inertial measurement unit (IMU) sensor. The visual-inertial SLAM can correct the drift errors via loop detection and local pose optimization. However, if the trajectory is not a closed loop, the drift error might not be significantly reduced. This paper presents a novel pedestrian dead reckoning (PDR)-aided visual-inertial SLAM, taking advantage of the enhanced vanishing point (VP) observation. The VP is integrated into the visual-inertial SLAM as an external observation without drift error to correct the system drift error. Additionally, the estimated trajectory’s scale is affected by the IMU measurement errors in visual-inertial SLAM. Pedestrian dead reckoning (PDR) velocity is employed to constrain the double integration result of acceleration measurement from the IMU. Furthermore, to enhance the proposed system’s robustness and the positioning accuracy, the local optimization based on the sliding window and the global optimization based on the segmentation window are proposed. A series of experiments are conducted using the public ADVIO dataset and a self-collected dataset to compare the proposed system with the visual-inertial SLAM. Finally, the results demonstrate that the proposed optimization method can effectively correct the accumulated drift error in the proposed visual-inertial SLAM system.
Applications of Biosensors for Meat Quality Evaluations
Authors: Sionek Barbara , Przybylski Wiesław , Bańska Anita , Florowski Tomasz
Published: November 2021

The aim of this study was to apply biosensors in the assessment of meat quality. The research was carried out on 20 samples of the Longissimus muscle obtained from pork of Polish Landrace and Polish Large White hybrids of fattening pigs. In the samples, 48 h after slaughter pH values, color parameters in the CIE system (L* a* b*), the volume of natural drip loss and intramuscular fat content were measured. The commercially available biosensor Accutrend Plus was used to measure glucose, triglycerides and lactic acid in meat juice. Significant (p ≤ 0.05) relationships between glucose, triglycerides, lactic acid levels and pork quality characteristics, i.e., pH (r = −0.62; r = −0.78; r = −0.68 respectively), natural drip loss and (r = 0.57; r = 0.58; r = 0.49), color parameters as L*, a* and b* (r = from 0.47 to 0.79) were demonstrated. The study showed a negative correlation between the intramuscular fat content and acidification of muscle tissue (r = −0.49), and a positive one with the brightness of color (r = 0.46). The results of the canonical analysis show that the measurement of all three metabolites in muscle juice allows the evaluation of the technological quality of meat with an accuracy of 86.54% (Rc = 0.93, p < 0.01).
Low-Dimensional Dynamics of Brain Activity Associated with Manual Acupuncture in Healthy Subjects
Authors: Guo Xinmeng , Wang Jiang
Published: November 2021

Acupuncture is one of the oldest traditional medical treatments in Asian countries. However, the scientific explanation regarding the therapeutic effect of acupuncture is still unknown. The much-discussed hypothesis it that acupuncture’s effects are mediated via autonomic neural networks; nevertheless, dynamic brain activity involved in the acupuncture response has still not been elicited. In this work, we hypothesized that there exists a lower-dimensional subspace of dynamic brain activity across subjects, underpinning the brain’s response to manual acupuncture stimulation. To this end, we employed a variational auto-encoder to probe the latent variables from multichannel EEG signals associated with acupuncture stimulation at the ST36 acupoint. The experimental results demonstrate that manual acupuncture stimuli can reduce the dimensionality of brain activity, which results from the enhancement of oscillatory activity in the delta and alpha frequency bands induced by acupuncture. Moreover, it was found that large-scale brain activity could be constrained within a low-dimensional neural subspace, which is spanned by the “acupuncture mode”. In each neural subspace, the steady dynamics of the brain in response to acupuncture stimuli converge to topologically similar elliptic-shaped attractors across different subjects. The attractor morphology is closely related to the frequency of the acupuncture stimulation. These results shed light on probing the large-scale brain response to manual acupuncture stimuli.
The Smart Meter Challenge: Feasibility of Autonomous Indoor IoT Devices Depending on Its Energy Harvesting Source and IoT Wireless Technology
Authors: Saavedra Edgar , Mascaraque Laura , Calderon Gonzalo , del Campo Guillermo , Santamaria Asuncion
Published: November 2021

Most smart meters are connected and powered by the electric mains, requiring the service interruption and qualified personnel for their installation. Wireless technologies and energy harvesting techniques have been proved as alternatives for communications and power supply, respectively. In this work, we analyse the energy consumption of the most used IoT wireless technologies nowadays: Sigfox, LoRaWAN, NB-IoT, Wi-Fi, BLE. Smart meters’ energy consumption accounts for metering, standby and communication processes. Experimental measurements show that communication consumption may vary upon the specific characteristics of each wireless communication technology—payload, connection establishment, transmission time. Results show that the selection of a specific technology will depend on the application requirements (message payload, metering period) and location constraints (communication range, infrastructure availability). Besides, we compare the performance of the most suitable energy harvesting (EH) techniques for smart meters: photovoltaic (PV), radiofrequency (RF) and magnetic induction (MIEH). Thus, EH technique selection will depend on the availability of each source at the smart meter’s location. The most appropriate combination of IoT wireless technology and EH technique must be selected accordingly to the very use case requirements and constraints.
Computational Identification and 3D Morphological Characterization of Renal Glomeruli in Optically Cleared Murine Kidneys
Authors: Nicolas Nabil , Nicolas Nour , Roux Etienne
Published: November 2021

The aim of this study was to establish an accessible methodology for the objective identification and 3D morphological characterization of renal glomeruli in mice. 3D imaging of the renal cortex was performed by light sheet microscopy on iDISCO+ optical cleared kidneys of six C57BL/6J mice after labelling of the capillary endothelium by lectin injection. 3D images were processed with the open source software ImageJ, and statistical analysis done with GraphPad Prism. Non-visual delimitation of the external surface of the glomeruli was ensured by greyscale-based thresholding, the value of which was determined from the statistical analysis of the voxel frequency distribution. Exclusion of false-positive identification was done by successive volume- and shape-based segmentation. Renal glomeruli were characterized by their number, surface area, volume, and compactness. Average data were expressed as mean ± SD. The number of glomeruli was equal to 283 ± 35 per mm3 of renal tissue, representing 1.78 ± 0.49% of the tissue volume. The surface area, volume and compactness were equal to 20,830 ± 6200 µm², 62,280 ± 14,000 µm3 and 0.068 ± 0.026, respectively. The proposed standardized methodology allows the identification of the renal glomeruli and their 3D morphological characterization, and is easily accessible for biologists.
Adaptive Neural Network Control of Time Delay Teleoperation System Based on Model Approximation
Authors: Wang Yaxiang , Tian Jiawei , Liu Yan , Yang Bo , Liu Shan , Yin Lirong , Zheng Wenfeng
Published: November 2021

A bilateral neural network adaptive controller is designed for a class of teleoperation systems with constant time delay, external disturbance and internal friction. The stability of the teleoperation force feedback system with constant communication channel delay and nonlinear, complex, and uncertain constant time delay is guaranteed, and its tracking performance is improved. In the controller design process, the neural network method is used to approximate the system model, and the unknown internal friction and external disturbance of the system are estimated by the adaptive method, so as to avoid the influence of nonlinear uncertainties on the system.
Pass/Fail Quality Assessment in Last Mile Smart Metering Networks Based on PRIME Interface
Authors: Kiedrowski Piotr , Marciniak Beata
Published: November 2021

The pass/fail form is one of the presentation methods of quality assessment results. The authors, as part of a research team, participated in the process of creating the PRIME interface analyzer. The PRIME interface is a standardized interface—considered as communication technology for smart metering wired networks, which are specific kinds of sensor networks. The frame error ratio (FER) assessment and its presentation in the pass/fail form was one of the problems that needed to be solves in the PRIME analyzer project. In this paper, the authors present their method of a unified FER assessment, which was implemented in the PRIME analyzer, as one of its many functionalities. The need for FER unification is the result of using different modulation types and an optional forward error correction mechanism in the PRIME interface. Having one unified FER and a threshold value makes it possible to present measurement results in the pass/fail form. For FER unification, the characteristics of FER vs. signal-to-noise ratio, for all modulations implemented in PRIME, were used in the proposed algorithm (and some are presented in this paper). In communication systems, the FER value is used to forecast the quality of a link or service, but using PLC technology, forecasting is highly uncertain due to the main noise. The presentation of the measurement results in the pass/fail form is important because it allows unskilled staff to make many laborious measurements in last mile smart metering networks.
VerificationTalk: A Verification and Security Mechanism for IoT Applications
Authors: Shieh Min-Zheng , Lin Yi-Bing , Hsu Yin-Jui
Published: November 2021

An Internet of Things (IoT) application typically involves implementations in both the device domain and the network domain. In this two-domain environment, it is possible that application developers implement the wrong network functions and/or connect some IoT devices that should never be linked, which result in the execution of wrong operations on network functions. To resolve these issues, we propose the VerificationTalk mechanism to prevent inappropriate IoT application deployment. VerificationTalk consists of two subsystems: the BigraphTalk subsystem which verifies IoT device configuration; and AFLtalk which validates the network functions. VerificationTalk provides mechanisms to conduct online anomaly detection by using a runtime monitor and offline by using American Fuzzy Lop (AFL). The runtime monitor is capable of intercepting potentially harmful data targeting IoT devices. When VerificationTalk detects errors, it provides feedback for debugging. VerificationTalk also assists in building secure IoT applications by identifying security loopholes in network applications. By the appropriate design of the IoTtalk execution engine, the testing capacity of AFLtalk is three times that of traditional AFL approaches.
Layer-Resolving Terahertz Light-Field Imaging Based on Angular Intensity Filtering Method
Authors: Lyu Nanfang , Zuo Jian , Zhao Yuanmeng , Zhang Cunlin
Published: November 2021

Terahertz focal plane array imaging methods, direct camera imaging and conventional light field imaging methods are incapable of resolving and separating layers of multilayer objects. In this paper, for the purpose of fast, high-resolution and layer-resolving imaging of multilayer structures with different reflection characteristics, a novel angular intensity filtering (AIF) method based on terahertz light-field imaging is purposed. The method utilizes the extra dimensional information from the 4D light field and the reflection characteristics of the imaging object, and the method is capable to resolve and reconstruct layers individually. The feasibility of the method is validated by experiment on both “idealized” and “practical” multilayer samples, and the advantages in performance of the method are proven by quantitative comparison with conventional methods.
Legume Nitrogen Fixation and Symbioses in Low-Inputs Rainfed Rice Rotations
Authors: Razafintsalama Harimenja , Sauvadet Marie , Trap Jean , Autfray Patrice , Ripoche Aude , Becquer Thierry
Published: November 2021

Cropping systems with legumes play key roles in farming systems in sub-Saharan Africa. However, how commonly legume associations perform in low input-systems is not well-known. Here, we studied four legume species used in three systems in rotation with upland rice, i.e., groundnut monocropping, sorghum–cowpea intercropping, and velvet bean–crotalaria intercropping, in two fertilization managements on the previous rice, i.e., manure alone or complemented with mineral fertilization. Legume suitability was assessed using rhizobial and mycorrhizal colonization rates, plant biomass production, shoot N and P content, and biological N2 fixation based on their δ15N natural abundance. Shoot and root biomasses varied significantly between legume species and were positively correlated with nodule number (r = 0.49 and 0.74, p-value < 0.05 and <0.001, respectively) and the amount of fixed N (r = 0.73 and 0.50, p-value < 0.001 and <0.05, respectively). The proportion of plant N derived from N2 fixation also varied significantly between species, with a higher percentage for velvet bean (66%), compared to the other three species (50 to 60%). Legume roots were weakly colonized by AM fungi, with similar levels between species. Overall, fertilization management did not significantly impact legume biomass, symbioses, or N2 fixation, yet the organo-mineral fertilization significantly increased legume shoot P content. The lack of effect of mineral fertilization on N2 fixation and biomass could be due to other nutrient deficiencies (Ca, Mg, micronutrients), which can hamper symbioses with rhizobia and mycorrhizae.
What Drives Sustainable Organizational Performance? The Roles of Perceived Organizational Support and Sustainable Organizational Reputation
Authors: Hossin Md Altab , Hosain Md Sajjad , Frempong Michelle Frempomaa , Adu-Yeboah Stephen Sarfo , Mustafi Mohitul Ameen Ahmed
Published: November 2021

Sustainable organizational performance (SOP) can differentiate an organization from its rivals. Thus, understanding the antecedents and driving factors of SOP has received wide attention from both the academicians and practitioners in recent years. In line with such attention, this empirical paper endeavored to investigate and identify the relationship between perceived organizational support (POS) and SOP with the mediating effect of sustainable organizational reputation (SOR). Based on 384 survey responses from mid-level managers using a cross-sectional survey design, we followed a deductive approach to test the hypotheses using covariance-based structural equation modeling. Our empirical investigation revealed that POS has a significant positive relationship with SOP as well as with SOR while SOR has a significant positive relationship with SOP. Regarding the mediating effect, we found that SOR can partially mediate the positive relationship between POS and SOP. We strongly believe that the findings revealed from this empirical study may aid interested future researchers in their quest of understanding the inherent relationship between perceived organizational support and sustainable organizational performance in the presence of sustainable organizational reputation. Further, such results may provide a platform for the top-level managers and other policymakers in their efforts to improve and sustain organizational reputation that will ultimately lead to sustainable organizational performance through proper organizational support.
Multi-Stakeholder Impact Environmental Indexes: The Case of NeXt
Authors: Becchetti Leonardo , Cacciapaglia Maristella , Morone Piergiuseppe , Raffaele Luca , Semplici Lorenzo
Published: November 2021

The design of proper environmental and social indicators is one of the most critical challenges when monitoring and implementing corporate and government policy measures toward ecological transitions and sustainable development. In our paper we outline and discuss the characteristics of a new vintage of “living” multi-stakeholder community-based indicators based on the principles of self-evaluation, dialogue and simplification with a specific focus on the NeXt index. We explain the main differences between them and the opposite extreme of static expert-based indicators, how they integrate firm-level scores with compliance with macro multidimensional wellbeing indicators (such as the UN Sustainable Development Goals) and how they complement with ongoing regulatory standards currently under development. As well, we discuss caveats, policy implications and impact in terms of subjective wellbeing.
The Time-Varying Effect of Asset Prices on Turkey’s Circular Economy
Authors: Balcilar Mehmet , Toren Evrim
Published: November 2021

The study aims to examine the effects of spillovers from stock prices on consumption and interest rates in Turkey. From the circular economy viewpoint, there should be sustainable consumption to achieve sustainable development with the help of consumers and other stakeholders. A time-varying vector autoregressive (TVP-VAR) model with stochastic volatility is used in the study. The aim is to obtain dynamics that stimulate growth, development, recession or change within the Turkish economy according to the emphases on circular economy. In order to analyze the relationship between real consumption, nominal interest rate and real stock prices, the TVP-VAR model is specified as a three-variable, time-varying model. The sample data that have been gathered from the Central Bank of the Republic of Turkey cover the period between Q1 1987 and Q3 2013. Overall, this study provides significant evidence of spillovers on consumption and interest rate during financial crises in Turkey, and the implications of monetary policy. In addition, the TVP model with stochastic volatility offers remarkable results regarding the influence of price shock on consumption in Turkey. However, we do not find any significant effect from interest rate to real consumption.
Computational Insight into the Rope-Skipping Isomerization of Diarylether Cyclophanes
Authors: Summers Thomas J. , Tupkar Hrishikesh , Ozvat Tyler M. , Tregillus Zoë , Miller Kenneth A. , DeYonker Nathan J.
Published: November 2021

The restricted rotation of chemical bonds may lead to the formation of stable, conformationally chiral molecules. While the asymmetry in chiral molecules is generally observed in the presence of one or more stereocenters, asymmetry exhibited by conformational chirality in compounds lacking stereocenters, called atropisomerism, depends on structural and temperature factors that are still not fully understood. This atropisomerism is observed in natural diarylether heptanoids where the length of the intramolecular tether constrains the compounds to isolable enantiomers at room temperature. In this work, we examine the impact tether length has on the activation free energies to isomerization of a diarylether cyclophane substructure with a tether ranging from 6 to 14 carbons. Racemization activation energies are observed to decay from 48 kcal/mol for a 7-carbon tether to 9.2 kcal/mol for a 14-carbon tether. Synthetic efforts to experimentally test these constraints are also presented. This work will likely guide the design and synthesis of novel asymmetric cyclophanes that will be of interest in the catalysis community given the importance of atropisomeric ligands in the field of asymmetric catalysis.
A Comparison of Structure Determination of Small Organic Molecules by 3D Electron Diffraction at Cryogenic and Room Temperature
Authors: Yang Taimin , Waitschat Steve , Inge Andrew Kentaro , Stock Norbert , Zou Xiaodong , Xu Hongyi
Published: November 2021

3D electron diffraction (3D ED), also known as micro-crystal electron diffraction (MicroED), is a rapid, accurate, and robust method for structure determination of submicron-sized crystals. 3D ED has mainly been applied in material science until 2013, when MicroED was developed for studying macromolecular crystals. MicroED was considered as a cryo-electron microscopy method, as MicroED data collection is usually carried out in cryogenic conditions. As a result, some researchers may consider that 3D ED/MicroED data collection on crystals of small organic molecules can only be performed in cryogenic conditions. In this work, we determined the structure for sucrose and azobenzene tetracarboxylic acid (H4ABTC). The structure of H4ABTC is the first crystal structure ever reported for this molecule. We compared data quality and structure accuracy among datasets collected under cryogenic conditions and room temperature. With the improvement in data quality by data merging, it is possible to reveal hydrogen atom positions in small organic molecule structures under both temperature conditions. The experimental results showed that, if the sample is stable in the vacuum environment of a transmission electron microscope (TEM), the data quality of datasets collected under room temperature is at least as good as data collected under cryogenic conditions according to various indicators (resolution, I/σ(I), CC1/2 (%), R1, Rint, ADRA).
Urological Manifestations of the Systemic Vasculitides—A Scoping Review
Authors: Nowak Łukasz , Krajewski Wojciech , Krajewska Joanna , Chorbińska Joanna , Kiełb Paweł , Małkiewicz Bartosz , Szydełko Tomasz
Published: November 2021

Background: Vasculitides are specific inflammations of the blood vessel wall that can take place in any organ system of the human body. They may occur as a primary process (primary systemic vasculitides, PSV) or may be secondary to another underlying disease. In general, in association with the specific type of vasculitis, affected vessels vary in size, type, and location. In the following scoping review, we present clinical characteristics and manifestations of PSV with reference to the genitourinary system. Materials and methods: A non-systematic search of the relevant literature was conducted using three electronic databases (PubMed, Embase, and Web of Science) up to 29 October 2021. Results: Urogenital manifestations of PSV are infrequent, with the most commonly reported findings as prostatic or testicular involvements. However, almost all other organs of the genitourinary system can be affected. Conclusions: Because of the clinical heterogeneity and non-specific symptoms, the proper diagnosis of PSV is often delayed and constricted. Fast identification of urological manifestations of vasculitides is essential in implementing appropriate therapy and avoiding unnecessary, harmful, and invasive surgery.
Influenza A Viruses and Zoonotic Events—Are We Creating Our Own Reservoirs?
Authors: Kessler Susanne , Harder Timm , Schwemmle Martin , Ciminski Kevin
Published: November 2021

Zoonotic infections of humans with influenza A viruses (IAVs) from animal reservoirs can result in severe disease in individuals and, in rare cases, lead to pandemic outbreaks; this is exemplified by numerous cases of human infection with avian IAVs (AIVs) and the 2009 swine influenza pandemic. In fact, zoonotic transmissions are strongly facilitated by manmade reservoirs that were created through the intensification and industrialization of livestock farming. This can be witnessed by the repeated introduction of IAVs from natural reservoirs of aquatic wild bird metapopulations into swine and poultry, and the accompanied emergence of partially- or fully-adapted human pathogenic viruses. On the other side, human adapted IAV have been (and still are) introduced into livestock by reverse zoonotic transmission. This link to manmade reservoirs was also observed before the 20th century, when horses seemed to have been an important reservoir for IAVs but lost relevance when the populations declined due to increasing industrialization. Therefore, to reduce zoonotic events, it is important to control the spread of IAV within these animal reservoirs, for example with efficient vaccination strategies, but also to critically surveil the different manmade reservoirs to evaluate the emergence of new IAV strains with pandemic potential.
The Persistence and Increase in Sexually Transmitted Diseases (STDs) to Pandemic Levels
Authors: Santacroce Luigi , Colella Marica , Charitos Ioannis Alexandros
Published: November 2021

Sexually transmitted diseases (STDs) have been known about since ancient times. Today, however, STDs are on the rise in young people around the world. Interventions and sex education are being utilized in attempt to prevent STD spread in individuals who are the greatest risk of infection. Young people should be provided with easy and accessible health services. There should be anonymity as well as investigations into the reasoning behind unsafe behavior.
Temporal and Spatial Variation of NDVI and Its Driving Factors in Qinling Mountain
Authors: Huang Chenlu , Yang Qinke , Zhang Hui
Published: November 2021

Qinling Mountains is the north–south boundary of China’s geography; the vegetation changes are of great significance to the survival of wildlife and the protection of species habitats. Based on Landsat products in the Google Earth Engine (GEE) platform, Pearson’s correlation coefficient method, and classification and regression models, this study analyzed the changes in NDVI (Normalized Difference Vegetation Index) in the Qinling Mountains in the past 38 years and the sensitivity of its driving factors. Finally, residual analysis method and accumulate slope change rate are used to identify the impact of human activities and climate change on NDVI. The research results show the following: (1) The NDVI value in most areas of Qinling Mountains is at a medium-to-high level, and 99.76% of the areas correspond to an increasing trend of NDVI, and the significantly increased area accounts for more than 20%. (2) From 1981 to 2019, the NDVI of the Qinling Mountains increased from 0.63 to 0.78, showing an overall upward trend, and it increased significantly after 2006. (3) Sensitivity analysis results show that the western high-altitude area of Qinling Mountain area dominated by grassland is mainly affected by precipitation. The central and southeastern parts of the Qinling Mountains are significantly affected by temperature, and they are mainly distributed in areas dominated by forest. (4) The contribution rates of climate change and human activities to NDVI are 36.04% and 63.96%, respectively. Among them, the positive impact of human activities on the NDVI of the Qinling Mountains accounted for 99.85% of the area. The area with significant positive effect accounted for 36.49%. The significant negative effect area accounts for only 0.006%, mainly distributed in urban areas and coal mining areas.
The Relationship between the Community Structure and Function of Bacterioplankton and the Environmental Response in Qingcaosha Reservoir
Authors: Liu Shumin , Zhao Fengbin , Fang Xin
Published: November 2021

Phytoplankton and bacterioplankton play a vital role in the structure and function of aquatic ecosystems, and their activity is closely linked to water eutrophication. However, few researchers have considered the temporal and spatial succession of phytoplankton and bacterioplankton, and their responses to environmental factors. The temporal and spatial succession of bacterioplankton and their ecological interaction with phytoplankton and water quality were analyzed using 16S rDNA high-throughput sequencing for their identification, and the functions of bacterioplankton were predicted. The results showed that the dominant classes of bacterioplankton in the Qingcaosha Reservoir were Gammaproteobacteria, Alphaproteobacteria, Actinomycetes, Acidimicrobiia, and Cyanobacteria. In addition, the Shannon diversity indexes were compared, and the results showed significant temporal differences based on monthly averaged value, although no significant spatial difference. The community structure was found to be mainly influenced by phytoplankton density and biomass, dissolved oxygen, and electrical conductivity. The presence of Pseudomonas and Legionella was positively correlated with that of Pseudanabaena sp., and Sphingomonas and Paragonimus with Melosira granulata. On the contrary, the presence of Planctomycetes was negatively correlated with Melosira granulata, as was Deinococcus-Thermus with Cyclotella sp. The relative abundance of denitrifying bacteria decreased from April to December, while the abundance of nitrogen-fixing bacteria increased. This study provides a scientific basis for understanding the ecological interactions between bacteria, algae, and water quality in reservoir ecosystems.
Battery Capacity Estimation Based on Incremental Capacity Analysis Considering Charging Current Rate
Authors: Lin Yiran , Jiang Bo , Dai Haifeng
Published: November 2021

Incremental capacity analysis (ICA) is widely used in the battery decay mechanism analysis since the features of battery incremental capacity (IC) curves are closely related to battery aging and maximum available capacity. However, the traditional ICA method to estimate battery capacity mainly focuses on a single charging condition, and the influence of charging current on IC curves is ignored. In this paper, an adaptive capacity estimation method based on ICA considering the charging current is established. First, the charging experiments using different charging current rates under different battery aging statuses are designed and conducted. Then, the relationship between battery maximum available capacity, IC curve features, and charging current is investigated. Furthermore, the fitting method and data-driven method considering charging current are proposed and compared. Finally, the capacity estimation results prove the accuracy and adaptability of the proposed method.
Magnetic Coupling Common Mode Conducted EMI Analysis and Improvement in a Boost Converter
Authors: He Junping , Liu Yujin , Wang Cong , Cao Lingling
Published: November 2021

Common mode (CM) electromagnetic interference (EMI) has been a difficult subject in electromagnetic compatibility (EMC) analysis and design of power converters for electric vehicles (EV) because of its complex formation mechanism and hidden propagation path. This paper studies a new mechanism of CM conducted emission caused by the leakage flux of a toroidal inductor in the main circuit of a boost DC/DC converter. The stray magnetic source and the CM inducted loops are firstly identified out by simulation analysis and experiments. Then a comprehensive conducted emission circuit model including magnetic coupling parameters is built to explain this CM EMI formation mechanism. Finally, several effective magnetic coupling suppression methods are proposed and verified, such as changing the installation angle of the inductor and the shape of the magnetic core. The research results are helpful to the EMC understanding and design of power electronic converters.
Parity–Time Symmetric Model and Analysis for Stable Multi-Load Wireless Power Transfer
Authors: Zhu Zhenghao , Yuan Huan , Zhang Renjie , Yang Aijun , Wang Xiaohua , Rong Mingzhe
Published: November 2021

A noticeable challenge for a multi-load wireless power transfer system is to achieve stable power transfer under a dynamic change in coupling conditions. It was proposed that the parity–time symmetric wireless power transfer (PT-WPT) system can achieve stable output efficiency for a single receiver when tuned at the purely real eigenfrequency. However, in the case of higher order, PT symmetric systems usually cannot maintain the real eigenfrequency. To address the issue, a high-order PT-WPT model was established using coupled mode theory (CMT) theory in this paper, and the eigenfrequency of the multi-load PT-WPT system was analyzed. Here, we propose that, theoretically, the system can work at the purely real eigenfrequency by impedance matching. The transfer efficiency of the multi-load PT-WPT system when the system works at the real eigenfrequency was analyzed. The results of the numerical simulation show that the multi load PT-WPT system can maintain stable output efficiency under a dynamic change in coupling conditions. In the long run, our work provides a new possibility for the stable transmission of the multi-load wireless power transfer system.
PERLIDUNGAN JUSTICE COLLABORATOR TINDAK PIDANA KORUPSI
Authors: Jupri Jupri
Published: November 2021

ABSTRACT                The guaranted of protection to a Justice Collaborator is stipulated in Article 32 of the United Nations Convention Against Corruption, 2003) as ratified as Law Number 7 Year 2006 stipulates that each State Party is obliged to provide physical and psychological protection against witnesses and experts in the disclosure of criminal acts of corruption. As the development progresses of corruption disclosure in Indonesia, the arrangement of Justice Collaborator is then started to be regulated explicitly in Law Number 31 Year 2014 on Protection of Witness and Victim.               Although physical, legal and special protection guarantees against the Justice Collaborator already exist. In fact, in the disclosure of a crime of corruption committed crime, a witness of the perpetrator who cooperates with law enforcement gets bullied until threats are killed. For example in the disclosure of corruption cases involving a number of politicians Political Parties in Indonesia. Keywords: Justice Collaborator, Protection, Corruption
Interacción de agua con películas delgadas de cobre
Authors:   , Asensio María Carmen
Published: November 2021

La adsorción de gases en superficies metálicas abarca una amplia variedad de disciplinas. Procesos como los de oxidación, corrosión, actividad catalítica y reactividad dependen críticamente del estudio de los fenómenos de superficie. Si bien con el advenimiento de nuevas técnicas de ultra alto vacío (UAV) y sensibles métodos de análisis se han resuelto graves inconvenientes en diversas áreas de aplicación, muchos procesos industriales se basan aún en conocimientos empíricos. Los estudios de superficie, en su mayoría, enfocan su atención en mecanismos que tienen lugar en superficies "modelos", las cuales difieren notablemente de las superficies :"reales" de gran interés tecnológico. En tal sentido, el estudio de reacciones heterogéneas catalizadas por películas metálicas delgadas, son el nexo imprescindible entre la fisicoquímica de superficies y las distintas áreas de la ciencia aplicada. En especial, la interacción de agua con superficies metálicas tanto desde el punto de vista de la catálisis heterogénea como de los fenómenos electroquímicos de corrosión es uno de los tópicos que más ha centrado la atención en estos últimos años. Además de sus múltiples aplicaciones prácticas, la particularidad que presenta el agua de formar fuertes uniones intermoleculares, comparables a la unión metal-adsorbato y la tendencia a la disociación registrada en numerosos metales , contribuyen a considerar el sistema agua-metal especialmente apto para el estudio de interacciones entre partículas adsorbidas y su relación con superficies metálicas. Por lo tanto, reviste notable interés un estudio extensivo de la interacción de agua con películas delgadas de cobre. En el presente trabajo (PT), junto con la caracterización detallada de las etapas elementales tales como: adsorción, desorción, migración superficial y reactividad, se investiga la influencia de la estructura del sustrato y de la presencia de especies coadsorbidas (oxígeno) en la actividad catalítica. De esta forma ha sido posible establecer las pautas generales para una variación sistemática de diferentes parámetros que modifican la actividad de las superficies de cobre frente al agua.
Has the introduction of the possibility to build a single-family house on the basis of notification really improved the development process? The analysis based on the example of the Capital City of Warsaw (Poland)
Authors: Kołacińska Sylwia , Zaborowski Tomasz
Published: November 2021

On 28 June 2015 an amendment of the Polish Building Code that abolished a requirement to get a building permission to construct or reconstruct a free standing one-family house, which impact area is limited to the plot on that it is planned, came into force. Since then an erection of such houses has been possible on a basis of notification instead. The goal of this amendment was to simplify the development process in the case of one-family houses. This article is a contribution to the verification of this assumption. Therefore data on notifications that were submitted to respective capital city of Warsaw districts’ offices  have been analysed. Detailed research has been limited to the districts of Bielany and Białołęka.
Information on the Prevalence and Extent of Alcohol Abuse Among Commercial Tricycle Operators in Calabar
Authors: Angioha Pius U. , Akintola Abayomi , Ogunnubi Olusola , Butum Bassey Eyong
Published: November 2021

This study examines the prevalence and extent of Alcohol abuse among commercial tricycle operators in Calabar, Cross River State, Nigeria. Adopting a descriptive quantitative research method, data was collected from 385 participants from 6424 registered tricycle operators in Calabar using a questionnaire. The participants were selected using the convenience and random sampling technique. Data collected from the field were subjected to descriptive statistics. Out of the 385 distributed instruments, 383 were returned and used for data analysis. From the analyzed data, the result revealed that all the participants, 100.00 per cent, have taken alcohol before. 81.46 per cent taken alcohol before while working, Majority of the tricycle drivers, 38.90 per cent believes that alcohol makes them have clearer vision when driving, 31.59 per cent argued that it makes them work longer, 10.97 per cent maintain that it is because they are used to alcohol. 12.27 per cent of the participants take alcohol at every opportunity they get, 18.02 per cent reported drinking every day. Result also revealed that all the tricycle riders have had accidents before, 77.81 per cent were under the influence of Alcohol when the accidents happened. Based on this result, the study concludes that there was a high prevalence of alcohol abuse among tricycle riders in Calabar. Hence there is a need for the enactment of proper laws that determines the legal limit of alcohol among drivers to checkmate the issue of driving under the influence and its attendant consequences.
The development of digital teaching materials using Macromedia flash for Junior High School class VII
Authors: Fanzeka Daniel , Rusli R. , Hastuty H. , Nasrullah N.
Published: November 2021

This research aims to develop and produce digital teaching materials products using Macromedia flash application that are valid, practical and effective. This research method refers to a 4D development, and disseminate. Research instruments in the form of validation sheets by material expert and media expert to measure validity; questionnaires of learners; responses to measure practicality; and test of learning outcomes to measure effectiveness. The trial of teaching materials was conducted to class VII learners at SMPN 6 Makassar. The result showed that digital teaching materials developed using Macromedia flash applications in class VII junior high school comparison materials had valid criteria with validity score of 3.70 for the material and 3.50 for media, practically score of 3.60 for small groups and 3.51 for large groups, and effective with an effectiveness score of 90% for small groups and 86%.
Pemanfaatan probiotik dalam cookies labu kuning sebagai strategi pengembangan produk biskuit fungsional
Authors: Wardani Monica Ageng , Dewi Lusiawati
Published: November 2021

Background: Pumpkin (Curcubita moschata Durch) is a type of vegetable that can be easily damaged like cracked or scratched as the harvesting or post-harvesting time. Those imperfect pumpkins will be rotten in a short time so that they cannot be sold in the market. Therefore, they need to be processed into a durable functional food in the form of cookie; the pumpkin is as the main ingredient for the dough and Lactobacillus sp, the probiotics bacteria is added into it. Research purposes: The aim is to find out the exact concentration of the coating materials’ combination and find out the viability of probiotics which is encapsulated in the maltosedextrin. Method: The coating materials’ combination is examined through encapsulation process using 10 % skimmed milk with three different precentage of maltodextrin i.e. 10%, 15% and 20%. The viability test was carried out using the spread plate method and then analyzed using the Colony Forming Unit and Viability (%) calculation method. Results and Discussion: The coating materials’ combination at concentration of 10% skimmed milk + 10%, 15% and 20% maltodextrin produce 84%, 90% and 98% cells’ viability. This shows that the use of those combinations can maintain the viability of the bacteria from the heat during the baking process at 180°C for 13 minutes. Conclusion: The microencapsulation of Lactobacillus achidopilus and Bifidobacterium logum with 10% skimmed milk + 20% maltodextrin resulted in the best viability as much as 98% viability cells. The higher the maltodextrin amount, the greater the bacterial’s viability is.
European-Russian Energy Relations: from Dependence to Interdependence
Authors: Galytska Karina
Published: November 2021

Due to the exploitation of international reservoirs, natural energy sources have become rare, disputed among States and therefore strategic. The reliance on these resources is linked to energy security and dependence in both terms of energy imports or exports. Furthermore, the access and reallocation of energy flows entail an alteration of the balance of power among States as well as the raise of national energy security strategies and debates. The aim of this volume is to analyze the evolution of energy relations between the European Union and the Russian Federation from a state of pure Dependence to the establishment of a balanced Interdependence, underling also the challenges facing the EU in terms of dependence and diversifications in the framework or the EU-Russian energy cooperation.
The Integration of the Evidence-Based Framework and Military Judgment and Decision-Making
Authors: McCullin David E.
Published: November 2021

This article is the second in a four-part series that discusses the integration of evidence-based framework and military judgment and decision-making (MJDM). The series is written as a conceptualization and implementation of the presidential memorandum on restoring faith in government dated 27 January 2021. The focus of the series is on integrating the evidence-based framework into defense planning and decision-making as an operational art. The series frames this integration in terms of basing decisions on the best evidence in four categories: subject matter expertise, stakeholder input, organizational data, and scholarship. It also recognizes that scholarship is the single component within the evidence-based framework not currently integrated into military planning.
MATURASI IKAN LELE MUTIARA Clarias gariepinus BETINA DENGAN ESTRADIOL-17? MELALUI PAKAN
Authors: Febriyanti Risa , Utomo Deny Sapto Chondro , Sarida Munti
Published: November 2021

Some problems in catfish culture are the spawning circle, female catfish begin to mature gonad at 10 months, and after 1,5 months can spawn again. The purpose of this study was to evaluate the process of accelerating maturation female mutiara catfish with the addition Estradiol-17? by oral treatments. The study was design used 3 treatments : 0 ml/kg feed, 0,4 ml/kg feed, 0,6 ml/kg feed with three individual replications. The result showed that the addition of Estradiol-17? significantly affected on reproductive performance : Gonado Somatic Index (GSI) 102,3% and eggs diameter 16,4% in female mutiara catfish compared with 0 ml/kg feed. Key words : Clarias gariepinus, Eggs Diameter, Estradiol-17ß, Gonadosomatic Index (GSI), Reproductive Performance.
MENINGKATKAN KEMAMPUAN SISWA KELAS XII TKJ 1 TENTANG KONSEP FUNGSI LIMIT MELALUI PEMBELAJARAN DENGAN GOOGLE CLASSROOM DI SMK NEGERI 1 KAYUAGUNG
Authors: Erni Erni
Published: November 2021

Penelitian  ini  bertujuan  untuk  mengetahui  peningkatan  kemampuan belajar  siswadalampembelajarandaring dengan model Google Classroom.Penelitian ini merupakan penelitian tindakan kelas dengan subjek penelitiansiswakelas XII TKJ 1 SMK Negeri 1 Kayuagung banyak 32 siswa terdiri 23 laki-laki dan 9 orang perempuan.. Penelitian                ini dilaksanakan 2 siklus, masing-masing siklus 2 kali pertemuan. Setiap pertemuan terdiri  dari  4  tahap  yaitu  perencanaan,  pelaksanaan,  observasi  dan  refleksi.Pelaksanaan  tahap-tahap  penelitian  sedikit  berbeda  dari  pembelajaran  dalamkelas karena pembelajara dilakukan secara terpisah atau siswa berada dirumah masing-masing.Hasil belajar menunjukkan bahwa hasil belajar matematika siswa senantiasa meningkat pada setiap siklusnya.  Pada siklus I ketuntasan belajar individual29 orang, secara klasikal 80,60 % dan nilai rata-rata kelas 72,42.  Siklus II ketuntasan belajar individual 34 orang, secara klasikal 94,4 % dan rata-rata kelas 79,61.  Dengan demikian dapat disimpulkan bahwa penerapan pembelajaran yang menggunakan model Google Classroom tentang konsep  Fungsi  Limit terbukti efektif dalam meningkatkan hasil belajar siswa pada pelajaran matematika.
MODEL PEMBELAJARAN SEUMUR HIDUP BERBASIS TEKNOLOGI INFORMASI DAN KOMUNIKASI (TIK) UNTUK PEMBERDAYAAN PEREMPUAN PEDESAAN PADA PKBM
Authors: Sutisna Anan
Published: November 2021

Lifelong learning (life long education) has a large role in improving the quality of the human development index. The quality of education in rural communities is far behind and powerless, especially women. Development of the quality of women's education in rural areas needs to be done comprehensively by combining formal, non-formal and informal education. The learning approach used combines andragodi and heutagogi so that lifelong education can be successful. To accelerate the goal of educational development for rural women can be done by forming learning communities through Community Learning Centers (PKBM).Learning for rural women in PKBM needs to be integrated using information and communication technology (ICT) because the community lives in far-off places while learning needs to be done in stages and continuously (life long learning). The use of ICTs in learning for rural women will facilitate the process and interaction in learning. Providing skills and economic empowerment become the main material in learning for rural women. Through education and ICT the empowerment of rural women will be more effective and can improve the quality of life of women socially and economically.