Miracle-dz/UniFAR-FTUs huggingface dataset:
Digital Surface Curvature

In recent years, the 3D digitization of cultural artefacts, such as buildings and statues, has become an important tool in archaeological preservation and research. The advantages of a digital version of an artefact include archival permanence and wide accessibility for analysis and study. This book explores and develops surface curvature based methods for analysing and visualizing such 3D digital data. The theoretical foundations of surface curvature, along with some new developments, are covered in the first part of the book. The second part of the book reports a range of practical results obtained working with a digitization of Michelangelo's David statue. This work should be of interest to both the archaeological community as well as computer scientists who have an interest in 3D digitization.
Sub-Nanosecond Infrared Optical Parametric Pulse Generation in Periodically Poled Lithium Niobate Pumped by a Seeded Fiber Amplifier

Abstract : A ytterbium-doped, polarization maintaining PM double-clad fiber was seeded at one end and pumped at the other end, using dichroic filters to protect the pump and seed lasers, creating a fiber amplifier. The seed laser was a passively Q-switched Nd:YAG microchip laser operating at 1064 nm, polarized 99:1, 7.14 kHz repetition rare, 0.5 nsec pulse width, average power of 38 mW, and 5.3 microjoule pulse energy. The pump laser was a 915 nm diode laser coupled to a fiber pigtail, operating at a maximum of 6 W with 7 A of operating current. The 3.56-m-long FC connectorized fiber was the active element and had a 25 micron core diameter and a 248 micron inner cladding diameter with 400- micron-diameter spliced silica end-caps to prevent damage polished at 8 to prevent back reflections. The PPLN crystal was an uncoated 1 x 14 x 49-mm-long multigrating crystal with approximate parallelism of the front and back surfaces. The domain grating period used was 29.5 micron, converting the 720 mW (over 100 microjoule pulse energy) fiber amplifier beam to a 1.507 micron signal beam and a 3.619 m idler beam, with 24% of the pump energy going to the signal and idler outputs.
Scale-invariant histogram of oriented gradients: novel approach for pedestrian detection in multiresolution image dataset

: This paper proposes a scale-invariant histogram of oriented gradients (SI-HOG) for pedestrian detection. Most of the algorithms for pedestrian detection use the HOG as the basic feature and combine other features with the HOG to form the feature set, which is usually applied with a support vector machine (SVM). Hence, the HOG feature is the most eﬀicient and fundamental feature for pedestrian detection. However, the HOG feature produces feature vectors of different lengths for different image resolutions; thus, the feature vectors are incomparable for the SVM. The proposed method forms a scale-space pyramid wherein the histogram bin is calculated. Thus, the gradient information from all the scales is encapsulated in a single fixed-length feature vector. The proposed method is also combined with color and texture features. The proposed approach is tested on three established benchmark pedestrian datasets: INRIA, NICTA, and Daimler. An improvement of ≥ 4.5% in the miss rate is achieved for all the three datasets considered. We also show that the SI-HOG can be applied to multiresolution datasets for which the HOG feature cannot be applied. Additionally, the MapReduce model is used to obtain the same outcome. The results indicate that the proposed approach outperforms the pedestrian-detection methods considered in this work.
Risk factors for mechanical failure of proximal femoral nail anti-rotation (PFNA–II) in the treatment of intertrochanteric fractures (AO/OTA 31-A1, A2)

Background: Intertrochanteric fracture is associated with severe morbidity and mortality. The results of postoperative implant failure are catastrophic. The aim of this study was to determine risk factors for implant failure in intertrochanteric fractures treated with proximal femoral nail anti-rotation (PFNA–II) through the assessment of early therapeutic effects.Methods: A single-center retrospective study was conducted on a continuous series of 123 intertrochanteric fracture patients treated with PFNA-II between Dec 2018 and Oct 2019. Perioperative medical and imaging data were collected. The patients were divided into two groups according to whether implant failure of not. The differences in reduction quality, nail length and tip apex distance (TAD) were analyzed to determine the risk factors of implant failure.Results: A total of 80 patients were enrolled, with an average age of 80.2 years old. There were 6 patients with implant failure. There was no significant difference in demographic index between the two groups. The reduction quality of failure group was good, accept and poor with each 2 patients, and that of the non-failure group was 35, 35 and 4 patients respectively. The difference of reduction quality between the two groups was statistically significant. The risk of postoperative implant failure in patients with poor reduction quality was 8.75 times that of patients with good and acceptable reduction from the Logistic regression analysis（OR=8.75，95%CI 1.215-62.99）. The differences in nail length, ASA and bone quality were not statistically significant. Conclusion: Reduction quality is a risk factor of implant failure in intertrochanteric fractures treated with PFNA-II. Even if the medial femoral cortex is anatomically reduced, there will be a triangular void area between the nail and the medial femur, which are prone to coxa vara and implant failure. Therefore, good reduction is the key to treat intertrochanteric fracture.
New Mechanisms of Gastrointestinal Mucosal Injury and Bleeding Induced by Acute Unpleasant Exercise

It remains unclear whether acute unpleasant exercise (AUE) caused by foot shocks leads to gastrointestinal (GI) mucosal injury and bleeding. In this study, we investigated the involvement of inflammatory cytokines in AUE-induced GI mucosal injury/bleeding and oxidative stress by analyzing the expressions of pro-inflammatory (IL-1β, IL-6, TNF-α, and iNOS) and anti-inflammatory (IL-10) cytokines in the hypothalamus and duodenum after foot shocks using PCR. Results showed that the expressions of IL-1β, IL-6, TNF-α, and iNOS were significantly increased following the process, while IL-10 was not activated. These findings suggest that the activation of inflammatory response system (IRS) is closely related to GI mucosal injury/bleeding and oxidative stress induced by AUE caused by foot shocks.
Design and implementation of real-time fuzzy control for thermodynamic plant

The paper presents the implementation of tuning techniques of single-input fuzzy logic controller (SIFLC) used for the control of a physical prototype of a thermodynamic plant. The idea behind such attempt is to analyze the practical consideration of the developed in MATLAB fuzzy control algorithms and to study their effectiveness in real time applications by a low-cost and time-saving manner. In the ground of such analysis is the estimation of the impact that the real environment may have on the designed by simulations control systems. The MATLAB based control algorithms which are implemented in this study are applied to the physical plant by data acquisition board (DAQ). Two basic tasks are fulfilled: 1) implementation of a SIFLC tuning algorithm based on a robust stability criterion in real-time control system; 2) analysis of the system performance and comparison of the results to ordinary PI control system and ordinary FLC system.
Finite element models of a transmission line for a plane electromagnetic wave in a shielding material

In this paper two models of a transmission line are considered. They are coaxial cables with conductive or dielectric medium (σ, ϵr). For each model, the distributions of the electric field and the attenuation where computed and compared. Also the S11 and S21 parameters (absolute values and dB) for different values of the relative electric permittivity ϵr and of electric conductivity σ were evaluated. For both models the RF Comsol module has been used, harmonic sub mode.
Integrated Assessment of Natural Hazards and Climate Change Adaptation: I - The KULTURisk Methodological Framework

A conceptual framework integrating different disciplines has been developed to comprehensively evaluate the benefits of risk prevention. Three main innovations are proposed with regards to the state of the art: (1) to include the social capacities of reducing risk, (2) to go beyond the estimation of direct tangible costs, and (3) to provide an operational solution to assess risks, impacts and the benefits of plausible risk reduction measures. The traditional risk metric in the physical sciences is the expected damage (direct tangible costs), which is defined as a function of hazard, vulnerability (physical) and exposure. The last element, exposure, provides the information to convert results into monetary terms. In the development of the KULTURisk Framework (KR-FWK), we considered several different pre-existing proposals, and we designed a new one as a conceptual model and also a flow-chart for the elaboration of information. The proposed KR-FWK is thus expected to provide: 1) an operational basis for multidisciplinary integration; 2) a flexible reference to deal with heterogeneous case studies and potentially various types of hazards; and 3) a means to support the assessment of alternative risk prevention measures including consideration of social and cultural dimensions. The project case studies of the process are expected to provide a quite diversified set of situations, allowing to consolidate the framework itself and to develop ad hoc tailored solutions for most common implementation cases.
Peak Power Control with an Energy Management System

Abstract : The Department of Defense (DoD) is researching methods to enhance energy security and reduce energy costs. The energy security of DoD installations relies on the commercial electricity grid. One method being considered to improve energy security and reduce energy costs is microgrids that include combinations of energy storage, energy sources, critical loads, and non-critical loads. A microgrid s power demand and the benefits of a microgrid integrated with a power electronics enabled Energy Management System (EMS) is investigated in this thesis. The power demand of a single family household is analyzed. The peak power demand of the single family household displays the drawbacks of peak power demand on the commercial electricity grid and the installations receiving power from it. Drawbacks include reduced energy security due to blackouts and increased cost as a result of meeting the peak demand. One benefit of an EMS is its ability to island or continue supplying power to critical loads when the commercial electricity grid is lost. A second benefit is reduced power demand on the commercial electricity grid during peak power demand or on distributed resources (DR) while islanded by performing peak power control. The performance of peak power control by an EMS is demonstrated using a Simulink model and an experimental laboratory setup. The Simulink model and EMS functionality are validated with the laboratory experiments. The Simulink model is then used to demonstrate the reduction in peak power demand on the commercial electricity grid using an EMS on more complex loads such as motors and diode rectifiers. The Simulink model is also used to compare the power demand on the commercial electricity grid with and without the EMS.
Complexity approach to joint value discovery in service innovation management

The paper describes how complexity notions can be useful to model Servitization dynamics in industrial companies moving from product based to service oriented configuration. It is a movement towards joint value discovery in industrial service innovation management increasing potentials for radical or architectural innovation. Based on process oriented research on global industrial companies identifying transition phases of Servitization, a complexity model is developed to understand, predict and guide the process, mechanisms, and outcomes of increased capacity for joint value discovery. The model synthesizes and extends to service innovation management a complexity approach originally introduced by Goldstein, Hazy and Lichtenstein (2010) and called the Cusp of Change Model. The theoretical developments are particularly useful in guiding leadership of innovation in broader organizational and networked settings, contributing to development of service innovation strategies as well as systemic leadership of innovation activity in services in global industrial companies.
Moving the mind

Traditionally, undergraduates in visual and performing art courses have been grounded with a significant allocation of technical skills though formal teaching in studios, with a lesser emphasis on art history/theory and professional business studies. Following a significant course review in 2004, James Cook University has renegotiated its five named degrees from the College of Music, Visual Arts and Theatre and condensed them into a Bachelor of New Media Arts. At the core of our new curriculum was the necessity to develop more practical theory in our undergraduate programs. The staff, in collaboration with Professor Des Crawley, agreed that it was impractical to create 'great practitioners' in a diverse range of disciplines in the current economic climate. With this in mind a new matrix was conceived to enable students to negotiate their degree with a range of core, majors and electives that integrated our college into other sections of the University. Central to our new program is a suite of core units that position our students into contemporary art in a global sense; integrating aesthetics, technology, philosophy, community, culture and the economy. The anticipated outcome of our new programs will be graduates who comprehend their audience and give meaning to their work, enabling public discourse as well as rigorous cultural analysis. Their art production will embrace a new range of media and be accompanied with sound theory that will position their work in the broader community. In this paper I wish to outline the motivation behind our new course structure, its pedagogical premise, the matrix, the rationale behind the Core units and the interdisciplinary Creative Exchange that is central to the degree structure.
Fuzzy logic controller for controlling DC motor speed using MATLAB applications

The purpose of this project is to control the speed of DC motor by using fuzzy logic controller with MATLAB applications. The scopes includes the simulation and modeling of DC motor, implementation of fuzzy logic controller to actual DC motor and comparison between MATLAB simulation and experimental result. This research was about to introduce the new ability of estimating speed and control the DC motor. By using the controller, the speed can be tuned until it get similar to the desired output that user need. Data will be transferred from the controller to the DC motor using the DAQ card. Encoder will be used to detect speed error between the desired output and the measured output.
Signal strength assisted robot navigation in a sensor network field

Robot Navigation in unknown environments faces fundamental challenges in: (i) identification of goal locations, (ii) trajectory planning, and (iii) trajectory execution. Several research studies have explored solutions to this problem, either with technology, such as global positioning systems, or with sophisticated planning algorithms with high computational complexity. This dissertation proposes a distributed three-tiered approach to solving the problem, involving: (i) a Novel scheme for identifying goal locations using a deployed static wireless sensor network (WSN), (ii) a Probabilistic mechanism for the autonomous mobile robots (AMRs) to obtain navigation information from the WSN, and (iii) a Neighborhood way-point computation scheme for improved AMR navigation. The goal is to have AMRs navigate from any point within a WSN-covered region to an identified target via interaction with the WSN only. The constraint is that neither the AMR, nor the WSN possess global positioning information. Identification of goal locations is achieved by generating a Pseudo-Gradient in the WSN field, that has its peak closest to the target in the region. The pseudo-gradient utilizes the important artifact of WSNs, that is, Received Signal Strength (RSS). RSS displays a natural gradient with respect to distance in its distribution. The pseudo-gradient therefore mimics a gradient from any natural occurring phenomenon such as chemical leaks or heat dissipation. The trajectory planning problem is solved by having the AMR follow the pseudo-gradient in one of two ways: (i) the WSN nodes guide the AMR to the goal location through simple WSN node-to-AMR interaction, or (ii) the AMR computes the way-points by estimating the topographical distribution of the pseudo-gradient in its neighborhood. Implicit Surface Interpolation and Artificial Potential Field mechanisms are used to estimate the distribution. In this method, there is no global coordinate reference available for the region, i.e., the AMR only utilizes the relative neighborhood information and the topology of the network to reach the goal location. The challenge of trajectory execution is met by the AMR applying probabilistic mechanisms to the data gathered from the WSN. By applying a particle filtering based bearing estimation approach, the AMR recursively improves the bearing estimates of its WSN neighbor nodes. The AMR then utilizes this information, along with data from the trajectory planning tier, to execute the trajectory way-points. The performance of the proposed three-tier approach is borne out through simulation and hardware experiments. Thus, the novel contributions of this dissertation are the development of: (i) A distributed WSN-based Pseudo-Gradient algorithm, (ii) Novel neighborhood way-point computation mechanisms, and (iii) A Particle Filtering setup for probabilistic WSN neighbor-node bearing estimation.
Characterization of the ChemCam (MSL) Imaging Capability

J. Dalmau, M. Berthé, Y. Langevin, K. Herkenhoff, N. Bridges, M. Saccoccio and the ChemCam team, Centre d’Etude Spatiale des Rayonnements – CNRS (31400 Toulouse, France; sylvestre.maurice@cesr.fr); Los Alamos National Laboratory, New Mexico; Laboratoire d’Astrophysique de Toulouse, France; Centre National d’Etudes Spatiales, Toulouse; Institut d’Astrophysique Spatiale, Orsay, France; U.S. Geological Survey, Flagstaff, AZ; Jet Propulsion Laboratory, Pasadena, CA.
Investigation of metered data analysis methods for commercial and related buildings

This study presents a review and evaluation of techniques for analyzing metered energy use data to determine baseline energy use and potential energy efficiency improvements in commercial and related buildings. A description of new methods that should be considered in such work is also presented. Development of relationships between energy characteristics and building physical characteristics is seen as an important area for improvement of analysis methods. Knowledge of the causes of variations in energy use and the expected relative impacts of different schedules, functional uses, and energy systems should be upgrades to allow adequate understanding of efficiency changes and better exchanges of efficiency improvement results. Significant advancements in analysis approaches for metered data from commercial buildings are being tested, and further improvements are needed. The improvements should include continued development of multiple parameter methods, development of methods for analyzing more detailed data, use of macrodynamic methods to generate models with physical significance, and simplification of the methods. The recommendations of this study are to begin research on advanced analysis methods, to develop a coordinated research program on analysis methods, to develop a classification method to define analysis approaches and promote the use of the method for reporting energy analyses, tomore » extend analyses of energy efficiency improvements to characterize building types, and to classify packages of common efficiency improvements technologies or approaches appropriate to the different building types. 48 refs., 7 figs.« less
INTEGRATION OF SAFETY, HEALTH, ENVIRONMENT AND QUALITY (SHEQ) MANAGEMENT SYSTEM IN CONSTRUCTION: A REVIEW

There are several standard of management systems such as ISO 9001 for Quality Management System, ISO 14001 for Environmental Management System, and OHSAS 18001 for Safety and Health Management System. These management systems are often treated as independent functions within organizations. However, many professionals belief that it is possible to harmonise ISO 9001 QMS, ISO 14001 EMS and OHSAS 18001 OHSMS. The objectives of this study are to review the existing management standards on health and safety, environmental and quality; to study the correspondences data between these three management systems; to develop guidelines of SHEQ Integrated Management System; and to study the advantages and disadvantages of the proposed guidelines. The corresponding elements between those three management systems seem to be compatible and the possibility of integrating them is feasible. Finally, the proposed integrated Safety, Health, Environmental and Quality (SHEQ) Management System's guidelines have been developed.
Development of a Wideband Acoustic Recording Tag to Assess the Acoustic Behavior of Marine Wildlife

Abstract : Instrumentation capable of monitoring free-ranging marine animals is an essential foundation for research on sound and marine wildlife. Acoustic recording tags, in particular, offer the capability to record a subject's acoustic exposure as well as its vocalizations and kinematics, providing a complete picture of a wild animal's acoustically-related behavior. In 2006, the Office of Naval Research (ONR) initiated support to Greeneridge Sciences to expand the capability of the first and only commercially-available broadband acoustic recording tag, the Bioacoustic Probe, to record high-frequency echolocation vocalizations of beaked whales and other odontocete species. The resulting effort increased the design's maximum sampling rate from 20 kHz to 232 kHz and its maximum storage capacity from 1 GB to 8 GB (64 GB if battery limitations are neglected). USB flash-drive technology replaced infrared transfers for data offloading, speeding offload by a factor of 60 from 17 MB/hour to 1 GB/hour. Other improvements included 3D tilt and 3D compass to support more detailed study of kinematic behavior. The new wideband recorder was announced for commercial sale in January 2009 as the Acousonde(trademark) 3A. Finally, a thorough redesign of the Bioacoustic Probe's shape prepared the way for a future cetacean tag that integrates attachment, flotation, and retrieval systems in a single hydrodynamic package. Tests of a mechanical sample of this integrated tag indicated the need to further reduce its size. The integrated tag, to be called the Acousonde(trademark) 3B, is being revised for planned release in 2010.