Miracle-dz/UniFAR-FTUs huggingface dataset:
GPU-accelerated Localization in Confined Spaces using Deep Geometric Features

Navigating within dark and confined spaces require robotic platforms to utilize accurate and reliable localization systems to operate safely and unattended. This paper presents an absolute localization system, for known confined spaces, using state of the art 3D pointcloud descriptors. Local geometric features are extracted from a known map and registered to matching features visible in the robots field of view. The 3D registrations are motion-filtered and fused with a visual inertial odometry estimate in an Extended Kalman filter, which return a fast and accurate absolute pose estimate. The proposed localization system is tested with different deep learning feature descriptors in a structured confined space, and our results indicate greater accuracy and lower processing time when compared to mainstream 3D registration approaches.
Veilingen: Wiskundig spel om veel knikkers

Users may download and print one copy of any publication from the public portal for the purpose of private study or research You may not further distribute the material or use it for any profit-making activity or commercial gain You may freely distribute the URL identifying the publication in the public portal Take down policy If you believe that this document breaches copyright, please contact us providing details, and we will remove access to the work immediately and investigate your claim.
Variation of Political Skill Dimensions Across Different Industries

The purpose of this study to ascertain if there is any variation in political skill dimensions ((a) social astuteness, (b) interpersonal influence, (c) networking ability and (d) apparent sincerity) exhibited by employees in India’s seven industry sectors. In this study, the Political Skill Inventory (PSI) is used to examine such variations. Five hundred fifty survey respondents are employed in seven sectors viz. automobile, education, finance, fast moving consumer goods, health, information technology and telecom. The results exemplify that statistically significant differences are exhibited in these political skill dimensions by the employees in different industry sectors chosen for this research. Since these differences are reflected on four dimensions of the political skill, this study makes a unique contribution by developing an understanding of individual dimensions of political skill, thus, enabling greater insight into skill enhancement at various levels. Further, this study contributes by furnishing insights on skills useful for practitioners to understand dominance and lack of industry-specific skills within PSI inventory. The implications of this study could be in the areas such as personnel selection, framing skill development tools and programmes, enhancing job performance, achieving organizational goals and improvising organizational culture.
A strategic framework for sustainable construction in developing countries

There is no doubt that large-scale development in the built environment and its physical infrastructure is needed in the so-called 'developing countries'. However, these problems need to be addressed in a way that is socially and ecologically responsible. There is great urgency to make sustainable interventions now, while these built environments are being created, rather than try and change things after the fact. However, there are a number of challenges to the introduction of sustainable construction technologies and practices, and certain enablers need to be developed to help these countries adopt a more sustainable path. The Agenda 21 for Sustainable Construction in Developing Countries suggested a strategy for addressing some of these challenges by developing a Research and Development Agenda, based on a matrix of immediate, medium-term and long-term technological, institutional and value enablers. This Agenda is supported by a Stakeholder Plan for Action. The challenge now is to find the means to implement these suggestions at a local level by developing regional and national action plans.
Low power fully differential frequency doubler

A novel fully differential frequency doubler is proposed based on CMOS technology, where a stacked push–push configuration is used to generate differential output. Compared to previously reported doublers, the proposed topology has advantages in power dissipation, fundamental frequency rejection, and simplicity. By utilising the proposed doubler, a low power direct-conversion up-mixer is designed for 900 MHz applications. The fabricated up-mixer shows 5.5 dB of power conversion gain and 7.5 dBm of output IP3, while dissipating total current of 4.5 mA from 1.25 V supply.
A Hexagonal Shape Microstrip Slot Antenna for Wideband and Multiband Applications.

Here in this paper a compact microstrip antenna having wide-slots of hexagon shape is fed by microstrip-line for wideband and multi band operations is proposed and studied. The proposed antenna resonates the 10-dB bandwidth from 0 to 6.0 GHz, and these frequency bands cover the standard IEEE 802.11b/g (2.4-2.485 GHz) and IEEE 802.11a (5.15-5.35 GHz) for WLAN applications and 2.5 GHz (2.5-2.69 GHz), 3.5 GHz (3.3-3.8 GHz) and 5 GHz (5.25-5.85 GHz) for Wi -MAX applications. Detailed design and experimental results are shown and discussed in this paper. The antenna is simulated using IE3D electromagnetic simulator. Here in this paper the improvement in multiband and wide band behavior is investigated & discussed with VSWR<2.
Teletraffic performance of microcellular personal communication networks

Teletraffic performance of a personal communication network (PCN) based on city street microcells catering for pedestrian mobile users is analysed. By opting for microcells, the network capacity dramatically increases as well as the spectrum efficiency, but the network must be able to accommodate substantial increases in the number and rate of call handovers. A teletraffic analysis is performed to determine the new and handover call rates as well as the channel holding time of the PCN. Next, a teletraffic model is established to determine the teletraffic performance parameters, such as the blocking probabilities of new and handover calls, the overall grade of service, the carried traffic, the channel utilisation, and the spectrum efficiency. Techniques to reduce the premature termination of calls in progress are proposed and modelled. These include reserving a set of channels exclusively for handovers at each microcell fixed station, and deploying a macrocell to overlay a microcellular cluster, where the macrocell base station is assigned channels for handover requests from mobiles who cannot be serviced by their microcell fixed stations. A large spectral efficiency of 1000 Erlang/MHz/km2 is achieved at nominal blocking probability of 2%, while the probability of premature termination is reduced to less than 10−4 in the presence of high call rates in excess of 0.06 calls/s/microcell. The results presented will assist network planners in predicting teletraffic performance.
Relationship between Skeletal Maturity, BMI Percentile and Dental Caries Experience among Taster and Non-taster Children

Introduction: Ability of an individual to taste phenylthiocarbamide (PTC) substance divides the population in tasters and non-tasters. The objective of this study was to investigate the relationship between the taste ability for PTC substance with BMI percentile, skeletal maturity and dental caries experience within taster and non-taster children of age 8-12 years. Hypotheses: Tasting ability for PTC affects the BMI percentile, skeletal maturity and dental caries experience and emerge as a useful caries risk assessment tool. Evaluation of Hypotheses (Materials and Method): One hundred children of 8-12 years were randomly selected and their taste perception was assessed using PTC sensitivity test. Radiovisiography (RVG) of middle phalanx was obtained to determine the skeletal maturity by using Rajgopal and Kansal modification 2005. Anthropometric measurements were recorded to obtain BMI value and then BMI percentile was calculated using CDC Pediatric growth charts. For dental caries assessment, deft/DMFT scores were recorded. Results: The non-tasters had early skeletal maturation, higher caries experience and higher BMI percentile than the tasters. Conclusion and Clinical Relevance: PTC Sensitivity is a genetically controlled trait showing strong association with dental caries. From the results of this study we can conclude that the genetic ability of tasting PTC affects the BMI percentile, skeletal maturity and dental caries experience. Thus it can emerge as a useful caries risk assessment tool helping in planning the preventive measures and interceptive orthodontics in children.
Beamforming for Downlink Multiuser MIMO Time‐Varying Channels Based on Generalized Eigenvector Perturbation

A beam design method based on signal‐to‐leakage‐plus‐noise ratio (SLNR) has been recently proposed as an effective scheme for multiuser multiple‐input multiple‐output downlink channels. It is shown that its solution, which maximizes the SLNR at a transmitter, can be simply obtained by the generalized eigenvectors corresponding to the dominant generalized eigenvalues of a pair of covariance matrices of a desired signal and interference leakage plus noise. Under time‐varying channels, however, generalized eigendecomposition is required at each time step to design the optimal beam, and its level of complexity is too high to implement in practical systems. To overcome this problem, a predictive beam design method updating the beams according to channel variation is proposed. To this end, the perturbed generalized eigenvectors, which can be obtained by a perturbation theory without any iteration, are used. The performance of the method in terms of SLNR is analyzed and verified using numerical results.
Computational Modeling of Combination of Magnetic Hyperthermia and Temperature-Sensitive Liposome for Controlled Drug Release in Solid Tumor

Combination therapy, a treatment modality that combines two or more therapeutic methods, provides a novel pathway for cancer treatment, as it targets the region of interest (ROI) in a characteristically synergistic or additive manner. To date, liposomes are the only nano-drug delivery platforms that have been used in clinical trials. Here, we speculated that it could be promising to improve treatment efficacy and reduce side effects by intravenous administration of thermo-sensitive liposomes loaded with doxorubicin (TSL-Dox) during magnetic hyperthermia (MHT). A multi-scale computational model using the finite element method was developed to simulate both MHT and temperature-sensitive liposome (TSL) delivery to a solid tumor to obtain spatial drug concentration maps and temperature profiles. The results showed that the killing rate of MHT alone was about 15%, which increased to 50% using the suggested combination therapy. The results also revealed that this combination treatment increased the fraction of killed cells (FKCs) inside the tumor compared to conventional chemotherapy by 15% in addition to reducing side effects. Furthermore, the impacts of vessel wall pore size, the time interval between TSL delivery and MHT, and the initial dose of TSLs were also investigated. A considerable reduction in drug accumulation was observed in the tumor by decreasing the vessel wall pore size of the tumor. The results also revealed that the treatment procedure plays an essential role in the therapeutic potential of anti-cancer drugs. The results suggest that the administration of MHT can be beneficial in the TSL delivery system and that it can be employed as a guideline for upcoming preclinical studies.
Location Abandonment in the New York State Banking Industry, 1994-2003

Past research has been relatively silent on factors contributing to an organization's decision to abandon its practices or strategies. To close this gap, we draw upon theories of interorganizational learning and multipoint competition to examine location abandonment by multiunit banks in New York State. Three themes emerge from our analysis. First, a multiunit bank was more likely to abandon branches near to the branches recently closed by other similar and large multiunit banks, but less likely to abandon branches near to the branches recently founded by other similar and large multiunit banks. Second, a multiunit bank was less likely to abandon a branch that engaged in a high level of multipoint contact with other multiunit banks. Finally, the level of multipoint contact of a focal branch increased the sensitivity of its abandonment probability to the location choices of other similar and large banks.
Comparative Assessment of SVC and TCSC Controllers on the Small Signal Stability Margin of a Power System Incorporating Intermittent Wind Power Generation

Wind power is highly variable due to the stochastic behavior of wind speeds. This intermittent nature could excite the electromechanical modes resulting in the small signal instability of a power system. In this study, the performance of static VAR compensation (SVC) and thyristor controlled series capacitor (TCSC) controllers in the damping of electromechanical modes is analyzed and compared. The study employs probabilistic modal analysis method using Monte Carlo simulation and Latin hypercube sampling techniques. Various scenarios are created to get insight into the study. The results obtained from the modal analysis are verified by using the time-domain simulation. Some of the key results show that SVC is more robust in the damping of electromechanical modes compared to TCSC. The result also reveals that allocation of power system stabilizer (PSS) using probabilistic method is more effective and robust compared to deterministic approach.
Should I Ask Over Zoom, Phone, Email, or In-Person? Communication Channel and Predicted Versus Actual Compliance

Research has found that people are much more likely to agree to help requests made in-person than those made via text-based media, but that help-seekers underestimate the relative advantage of asking for help face-to-face. It remains unknown what help-seekers’ intuitions about the effectiveness of richer media channels incorporating audio and video features might be, or how these intuitions would compare with the actual effectiveness of face-to-face or email versus rich media requests. In two behavioral and two supplemental vignette experiments, participants expected differences in the effectiveness of seeking help through various communication channels to be quite small, or nonexistent. However, when participants actually made requests, the differences were substantial. Ultimately, help-seekers underestimated the relative advantage of asking for help face-to-face compared with asking through any mediated channel. Help-seekers also underestimated the relative advantage of asking through richer media channels compared with email.
Accelerating STEM Capacity: A Complex Adaptive System Perspective

The traditional U.S. approach to learning—one focused primarily on formal education—is inadequately preparing the future workforce for competitiveness-critical occupations. A new approach—one that encourages formal education and practical application supports lifelong learning and offers potential to turn the tide. strength and versatility of labor force, its to are on an system capable pro-ducing a steady supply of young people well-prepared in science and math,” This draws attention to the endemic and pervasive weaknesses in models that fail to support a flourishing workforce competency. along the pipeline—from quality science in the early the performance of on the content and rigor of teacher education programs in the and of weakness and At the same time, analysts agree these same couple of the occupations are projected to be in areas of science, technology, and mathematics (STEM).
Compact CPW Fed Balloon Shaped Patch Antenna for UWB & Wi-Max Applications

This paper presents the design and performance of CPW fed balloon shaped patch antenna having rectangular stab of overall size 30mm × 26 mm × 1.59 mm. The proposed antenna is simulated by applying CST Microwave studio simulator. This antenna has wide impedance bandwidth of 5.19 GHz (2.81 GHz - 8.00 GHz) with flat gain (close to 3-4dBi) in the desired frequency range. This antenna may be a useful tool for Wi-MAX communication bands and lower and median UWB bands. Keywords—CPW fed; CST 2013; Wi-MAX communication systems; UWB communication Systems; WLAN communication systems.
Characterization of interconnections performances for high speed digital boards: a frequency/time domain approach

On the modern digital equipments, characterized by continually increasing bandwidth requirements, the electrical properties of the printed circuit board interconnections affect and limit the quality of the traveling digital signals. This impacts on the electro-magnetic compatibility (EMC) performances of the system, because corrupted signals can easily increase the emissions from the system. Specific dielectric materials with low dielectric losses must be used for board manufacturing, in order to transmit digital signals with a high frequency harmonic content on longer distances. Consequently it is important to characterize, as function of the bit rate and the rise/fall time of the transmitted signal, the attenuation and deterministic jitter due to the dielectric material building up the board. To do this, one must separate (de-embed) from the measurements the effects of the adapters, used to connect the test board at the measuring instrument. The proposed de-embedding method uses a vector network analyzer with time domain option and only two traces, laid-out on the test board, with different lengths. The technique is validated by comparing the measured values with those coming from simulations.
Research on River Channel Terrain Measurement Method Based on Binocular Vision

For the existed river channel terrain measurement method defects such as complex measurement process and high performance equipments requirement, in the paper a terrain measurement method based on binocular vision is proposed. Firstly, in proposed system binocular vision measurement parameters are calculated on the basis of monocular calibration; secondly, artificial signs are located in river channel and detected based on improved Harris corners detection algorithm; thirdly, the feature corners in binocular images are matched based on epipolar constraint and SIFT algorithm; finally, for corrected images feature corners location method is proposed, and the river channel terrain is measured. Experiments show that in the proposed method the river channel terrain can be measured accurately, and the method has good reference value to measure other irregular scenes.
An update on molar-incisor hypomineralization

The management of molar incisor hypomineralization (MIH) is considered challenging for patients, parents and the dentist; it has a systemic origin, it can occur in one or more permanent molars, incisors can be affected simultaneously. These enamel defects occur due to several risk factors during the pre-, peri- and postnatal period. Objective: To analyze the literature on molar-incisor hypomineralization and its relationship with prenatal risk factors, diagnosis, enamel remineralization techniques and treatment. Methodology: Using the keywords “molar incisor hypomineralization”, “etiology”, “diagnosis”, “oral manifestations”, “enamel remineralization” and “clinical management”, the Medline/PubMed and ScienceDirect databases were searched, with emphasis on the last 5 years. It was evaluated with the PRISMA and AMSTAR-2 guidelines. Results: Postnatal factors are based on childhood diseases and antibiotic intake in the developmental stages of the teeth. In the prenatal period, to diseases during pregnancy. Perinatal factors are related to low birth weight. MIH is evaluated depending on the severity based on defects, color, location and post-eruptive collapse and the extent of the affected surface. Techniques to remineralize the enamel are only efficient to avoid caries progression. Microabrasion is the most commonly used treatment technique. Conclusion: Most of the risk factors are attributed to the postnatal period during the first three years of life and HMD increases the prevalence of MIH.
Oil Film State between Friction Pair in Hydro-Viscous Drive

In the paper, we research the flow state and the pressure of the oil film between the parallel and the deformed friction pairs to reveal the oil film state between the friction pair in hydro-viscous drive. Firstly, 3D physical models of the oil film were established. Then, the models were solved based on the principle of computational fluid dynamics. We found that the dynamic pressure goes up gradually along the radial direction; at zone with groove the dynamic pressure is higher, and the dynamic pressure between deformed interfaces is lower than that between parallel interfaces. The velocity of the oil film increases along the radial direction, and that between deformed interfaces is higher. The numerical results can provide some theoretic basis for the study of the HVD technology.
IMPROVEMENT OF THE CONTAINER TERMINAL STATION IN KHARKOV-LISKY CALCULATION AND ITS ABILITY PROCESSING

The article describes and analyzes technology issues Container Terminal, payment processing abilitywas done by means of mechanization for local container and payment processing ability by means ofmechanization for transit containers empirical method. Set targets for improvements in technologyContainer Terminal. Implemented by the old methods of calculations showed that existing stream processing platform container parameters (size,technical equipment) are sufficient , with a significant margin. That existing technical equipment should be sufficient in the short term . And to optimize container item should beone tapremoved, which will enable to save operating costscontainer yards. But due to the existence ofcustoms control,Terminal operation , technical and technological obsolescence cargohandling mechanismsin the most intense months of processingcapacity is not provided in full.If all parts of the production will runsmoothly, namelycontainer item handling equipment , the current workflow Station Kharkov - Liska willprovidefour basic principles: continuity , rhythm , parallelism andpotochnist all operations of the maximumcombination with high quality unconditional use.
Transient Signal Feature Extraction Based on Box Dimension and the Largest Lyapunov Dimension

Cognitive radio is one kind of wireless communication technology, which is to effectively improve the spectrum efficiency by the way of wireless spectrum sensing. Besides of varieties of security issues of the traditional wireless communication, it also has some new problems, such as Primary User Emulation (PUE) attack. This essay presents that based on the fractal dimension of the transient signal characteristics extraction to protect the PUE attack from the cognitive wireless networks, and then extract the fractal dimension of wireless transmitter through experiments to provide reliable characteristic parameters for the next signal recognition, finally to prevent PUEs attack.