cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Keramische Mikrofiltrationsmembranen mit elektrochemisch erzeugter nano-TiO2 Beschichtung zur Wasseraufbereitung
Creators: name: Kutzer-Schulze, Claudia
name: Trepte, Sarah
name: Langklotz, Ulrike
name: Krug, Mario
name: :Unav
Publisher: name: Fraunhofer-Gesellschaft
Year: 2024
Subjects: Photokatalyse
Membran
Titandioxid
Wasseraufbereitung

description: Unlängst ist der vielfältige anthropogene Einfluss auf unsere Umwelt bekannt. Chemikalien- und Medikamentenrückstände gelangen bei Produktions- und Reinigungsprozessen sowie über den eigenen Haushalt in die Abwässer. Diese Schadstoffe lassen sich durch Photokatalyse beispielsweise mit Titandioxid (TiO2) abbauen. Der Einsatz eines pulverförmigen Katalysators wirkt sich jedoch negativ auf die Effizienz der Wasseraufbereitung aus. Durch die Fixierung des Katalysators auf einer festen Oberfläche bei zeitgleicher Nanostrukturierung wird dieser Effekt vermieden und gleichzeitig die photokatalytisch aktive Oberfläche vergrößert. Durch das Aufbringen auf eine Membran wird die Katalysatorschicht vollflächig durchströmt und gleichzeitig größere Partikel mechanisch abgetrennt.
Constraints on cosmic-ray boosted dark matter with realistic cross section
Creators: name: Guha, Atanu
name: Park, Jong-Chul
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Sub-MeV cold dark-matter particles are unable to produce electronic recoil in conventional dark-matter direct detection experiments such as XENONnT and LUX-ZEPLIN above the detector threshold. The mechanism of boosted dark matter comes into picture to constrain the parameter space of such low mass dark matter from direct detection experiments. We consider the effect of the leading components of cosmic rays to boost the cold dark matter, which results in significant improvements on the exclusion limits compared to the existing ones. To present concrete study results, we choose to work on models consisting of a dark-matter particle $χ$ with an additional $U(1)'$ gauge symmetry including the secluded dark photon, $U(1)_{B-L}$, and $U(1)_{L_e-L_μ}$. We find that the energy dependence of the scattering cross section plays a crucial role in improving the constraints. In addition, we systematically estimate the Earth shielding effect on boosted dark matter in losing energy while traveling to the underground detector through the Earth.
description: Accepted for Publication in JCAP
Avaliação do Impacto Social do Projeto Educação de Jovens e Adultos Profissionalizante – PROEJAFIC/EPT do Campus Maués -IFAM
Creators: name: Vasconcelos, Marlena Raquel dos Santos
name: Toda, Favio Akiyoshi
Publisher: name: Zenodo
Year: 2025

description: Este relatório técnico teve como objetivo apresentar os resultados obtidos na pesquisa de avaliação de impacto social do Programa Nacional de Integração da Educação Profissional com a Educação Básica na Modalidade de Educação de Jovens e Adultos (PROEJAFIC-EPT) ofertado pelo Instituto Federal do Amazonas (IFAM), Campus Maués. O estudo foi conduzido utilizando a metodologia de Social Return on Investment (SROI) com base na Teoria da Mudança, a fim de mensurar o retorno social gerado pelo programa. A pesquisa incluiu a coleta de dados qualitativos e quantitativos, entrevistas com stakeholders e a aplicação de questionários a ex-alunos.

2.    Objetivos

Objetivo Geral: Avaliar o impacto social do projeto PROEJAFIC-EPT no Campus Maués, utilizando a metodologia SROI para calcular o retorno social do investimento e entender a percepção dos stakeholders sobre o programa.Objetivos Específicos:

•    Realizar levantamento documental e bibliográfico sobre o PROEJAFIC/EPT no IFAM.•    Identificar e mapear indicadores de impacto social relevantes para o cálculo do SROI.•    Analisar as percepções de ex-alunos, familiares e coordenadores sobre os resultados do programa.•    Calcular o SROI e fornecer recomendações para a gestão pública sobre a continuidade e aperfeiçoamento do programa.

3.    Metodologia

A pesquisa seguiu uma abordagem quali-quanti, sendo dividida em três fases principais:

1.    Coleta de dados qualitativos: Foram realizadas entrevistas semiestruturadas com a coordenadora geral do PROEJAFIC/EPT, cinco ex-alunos e um familiar, com o intuito de capturar percepções sobre o impacto social do programa.2.    Coleta de dados quantitativos: Um questionário foi aplicado a uma amostra de 39 alunos certificados, dos quais 27 responderam, proporcionando uma confiabilidade de 90%.3.    Cálculo do SROI: Utilizou-se a Teoria da Mudança para mapear as etapas do programa e calcular o retorno social a partir de proxies financeiras. A taxa de desconto aplicada seguiu as diretrizes da Social Value UK e o Green Book do HM Treasury.4.    Resultados e DiscussõesA análise dos dados permitiu identificar os seguintes resultados:•    Impactos Sociais Positivos: O PROEJAFIC-EPT gerou impactos positivos significativos em termos de melhoria de competências técnicas e inclusão educacional dos participantes. Ex-alunos relataram aumentos nas oportunidades de emprego e maior autoestima após a conclusão do curso.•    Indicadores Quantitativos: O cálculo do SROI indicou que, para cada R$ 1,00 investido no programa, foi gerado um retorno social de R$ [valor calculado]. Este valor reflete os benefícios tangíveis e intangíveis percebidos pelos participantes e suas famílias.•    Desafios Identificados: Embora o programa tenha apresentado resultados positivos, a pesquisa identificou a necessidade de maior acompanhamento pós-curso e uma integração mais eficiente entre as etapas de formação e o mercado de trabalho.
The possible $K \bar{K}^*$ and $D \bar{D}^*$ bound and resonance states by solving Schrodinger equation
Creators: name: Sun, Bao-Xi
name: Cao, Qin-Qin
name: Sun, Ying-Tai
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Schrodinger equation with a Yukawa type of potential is solved analytically. When different boundary conditions are taken into account, a series of solutions are indicated as Bessel function, the first kind of Hankel function and the second kind of Hankel function, respectively. Subsequently, the scattering processes of $K \bar{K}^*$ and $D \bar{ D}^*$ are investigated. In the $K \bar{K}^*$ sector, the $f_1(1285)$ particle is treated as a $K \bar{K}^*$ bound state, therefore, the coupling constant in the $K \bar{K}^*$ Yukawa potential can be fixed according to the binding energy of the $f_1(1285)$ particle. Consequently, a $K \bar{K}^*$ resonance state is generated by solving the Schrodinger equation with the outgoing wave condition, which lie at $1417-i18$MeV on the complex energy plane. It is reasonable to assume that the $K \bar{K}^*$ resonance state at $1417-i18$MeV might correspond to the $f_1(1420)$ particle in the review of Particle Data Group(PDG).In the $D \bar{D}^*$ sector, since the $X(3872)$ particle is almost located at the $D \bar{ D}^*$ threshold, the binding energy of it equals to zero approximately. Therefore, the coupling constant in the $D \bar{ D}^*$ Yukawa potential is determined, which is related to the first zero point of the zero order Bessel function. Similarly to the $K \bar{K}^*$ case, four resonance states are produced as solutions of the Schrodinger equation with the outgoing wave condition. It is assumed that the resonance states at $3885-i1$MeV, $4029-i108$ MeV, $4328-i191$MeV and $4772-i267$MeV might be associated with the $Zc(3900)$, the $X(3940)$, the $χ_{c1}(4274)$ and $χ_{c1}(4685)$ particles, respectively. It is noted that all solutions are isospin degenerate.
description: 9 pages, 2 tables, 4 figures, to be published in Communications in Theoretical Physics
Synthesis report on the comparative analysis of SIE-fields and their SIE-initiatives in six countries: Encouraging the diversity, processes and contributions of SIE
Creators: name: Hielscher, Sabine
name: Wittmayer, Julia M.
name: Rogge, Karoline S.
name: Iskandarova, Marfuga
name: Parrish, Bryony
name: Vernay, Anne- Lorene
name: Buccolini, Benedetta
Publisher: name: Zenodo
Year: 2021

description: SONNET aims to co-create a rich inter- and transdisciplinary understanding of the diversity,processes (including enabling and impeding factors) and contributions of SIE (social innovation in the energy sector). In WP3, we make use of a multiple, embedded case study approach, using diverse units of analysis to build a better understanding of SIE-fields and the SIE-initiatives within them. The main unit of analysis is the SIE-field, while the subunits of analysis are the SIE, different SIE-field-actors (who work on the SIE) and their SIE-initiatives, and other field-actors (who enable and impede the SIE). The analysis also considers the context of wider socio-political, socio-economic and sociocultural issues linked to these actors and the SIE-field. The case studies are presented as a series of six country reports: France, Germany, Netherlands, Poland, Switzerland, and United Kingdom. Each country report presents three embedded case studies of SIE-fields within their national context. Overall, the country reports present 18 embedded case studies of SIE-fields, and 36 cases of SIE-initiatives nested within the SIE-field investigations and published in deliverable D3.2 This deliverable D3.3 has two overall aims. First, to dive into a comparative analysis of each SIE-field and their SIE-initiatives across three SONNET countries (for example, comparing framings against fossil fuel energy pathways in the United Kingdom, the Netherlands and Poland). This analysis draws on empirical phenomena surfacing in the different cases and specific concepts that help to further the understanding of SIE. Second, to derive key insights into specific aspects of the diversity, processes and contributions of SIE.
Updated Co-creation, Dissemination and Exploitation Strategy
Creators: name: Kotler, Adrienne
name: Mischkowski, Niklas
name: Krajewska, Olga
name: Sheridan, Louise
Publisher: name: Zenodo
Year: 2021

description: The co-creation, dissemination and exploitation strategy of SONNET describes how the knowledge and experience of consortium partners will be used for communicating about the project, disseminating its results to a wide range of audiences, and ensuring that the resulting ideas, methods and recommendations are taken up and continued to be used after the project ends (exploitation). Communication and dissemination activities (WP7) will be carried out from the very beginning (M1, June 2019) to the end of the project (M36, May 2022). As such, an initial draft of this strategy was already under development in June 2019; what follows is a mid-term update of the overall co-creation, dissemination and exploitation strategy (D7.2). This update considers changing landscapes, what has been achieved in this work package so far, and plans to enable SONNET to reach its co-creation, dissemination and exploitation targets moving forward. The development of the strategy is led by ICLEI Europe, with the help of all partners. It will be updated systematically to ensure its continued alignment with the evolving SONNET project.
BPS Wilson loops in mass-deformed ABJM theory: Fermi gas expansions and new defect CFT data
Creators: name: Armanini, Elisabetta
name: Griguolo, Luca
name: Guerrini, Luigi
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We compute the expectation values of BPS Wilson loops in the mass-deformed ABJM theory using the Fermi gas technique. We obtain explicit results in terms of Airy functions, effectively resumming the full 1/N expansion up to exponentially small terms. In the maximal supersymmetric case, these expressions enable us to derive multi-point correlation functions for topological operators belonging to the stress tensor multiplet, in the presence of a 1/2--BPS Wilson line. From the one-point correlator, we recover the ABJM Bremsstrahlung function, confirming nicely previous results obtained through latitude Wilson loops. Likewise, higher point correlators can be used to extract iteratively new defect CFT data for higher dimensional topological operators. We present a detailed example of the dimension-two operator appearing in the OPE of two stress tensor multiplets.
description: 45 pages, 1 figure, 2 appendices
Hybrid coffee roaster
Creators: name: Cooper, Jake
name: Gries, Jared
name: Nickens, Daniel
Publisher: name: Unknown
Year: 2018

description: Coffee beans are actually the seeds of coffee cherries that are inedible before roasting.
Coffee beans experience many chemical and physical changes during the roasting process to turn
green coffee beans into the dark brown beans seen in coffee shops across the world. The roaster
design outlined in the project is a hybrid of the two leading coffee roasting designs: drum and
fluid-bed. Drum roasters primarily transfer heat to the coffee beans by means of conduction
while fluid-bed roasters transfer heat by convection. The hybrid coffee roaster design
incorporates both heat transfer methods to create more uniform roast across the batch. The
hybrid design was modeled in SOLIDWORXS and then constructed to be used for small-scale
roasting and academic purposes at the University of Southern Indiana (USI). Although coffee
roasting is mainly seen in large-scale settings (industry), there are also applications for small scale
roasting of approximately 200g batch sizes. This hybrid roaster combines elements from
control theory and heat transfer theory to serve as a valid model to be expanded upon in the
Linear Control Systems (ECE 443) course at USI.
Infrastructure condition assessment based on low-cost hyper-spatial resolution multispectral digital aerial photography
Creators: name: Zhang, Su
name: Bogus, Susan M.
name: Lippitt, Christopher D.
Publisher: name: The University of British Columbia
Year: 2015

description: Infrastructure condition information is critical for effective asset management. Infrastructure managers are tasked with regularly assessing asset conditions to make effective maintenance, repair, and rehabilitation decisions. Currently there are two types of methods broadly adopted for infrastructure condition assessment: on-site evaluation methods and airplane-based observation methods. On-site evaluation methods are expensive, labor-intensive, time-consuming, potentially dangerous to inspectors, inconsistent, and requiring specialized staff on a regular basis. Airplane-based observation methods can provide reliable overall condition information for ground infrastructure assets such as roadways, bridges, dams, or buildings, but the spatial resolutions of 0.075-meter (3-inch) to 1-meter are insufficient to examine detailed asset conditions such as individual cracks on a pavement surface or on a bridge. Using roadway pavement assets as an example, this research explored the utility of hyper-spatial resolution (3-millimeter) multispectral digital aerial photography acquired from a low-altitude unmanned remote sensing system to permit characterization of detailed surface distress conditions. With the help of orthogonal regression analysis, detailed pavement surface distress rates manually estimated from hyper-spatial resolution multispectral digital aerial photography were compared to reference pavement distress rates manually collected on the ground. The results show that the hyper-high spatial resolution imaging techniques provide detailed and reliable data suitable for informing infrastructure system management decisions. These results open the way for the future application of low-cost hyper-spatial resolution digital aerial photography for automated assessment of detailed infrastructure system condition.
Enhancing Weak magnetic field sensing of cavity-magnon system with dual frequency modulation
Creators: name: Liu, Zheng
name: Liu, Yu-qiang
name: Mai, Zi-yi
name: Yang, Yi-jia
name: Zhou, Nan-nan
name: Yu, Chang-shui
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The crucial limitation of improving the sensitivity of the detection of weak magnetic fields is the unavoidable measurement noise. In this paper, we propose a scheme to achieve precise sensing robust against additional noise by employing a dual-frequency bias field modulation within a cavity magnon system. We find that the anti-rotating wave term can amplify the signal of the detected magnetic field, but this amplification effect must coexist with the rotating wave term. In particular, by the bias field modulation, we find the robustness against cavity field thermal noise is substantially enhanced, quantum noise and cavity field thermal noise is greatly reduced, and the external magnetic field signal is amplified, thereby improving the weak magnetic field sensing system's sensitivity. Compared with the previous scheme, our scheme requires neither an ultra- or deep-strong coupling mechanism nor the suppression of the additional noise by increasing the electromagnetic cooperativity. Our scheme could provide a valuable candidate for weak magnetic field sensing.
Experimental study of the convection in a thin cylindrical gas layer with imposed bottom and top fluxes and imposed side temperature
Creators: name: Rein, Florian
name: Carénini, Laure
name: Fichot, Florian
name: Favier, Benjamin
name: Bars, Michael Le
Publisher: name: arXiv
Year: 2025
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We investigate convection in a thin cylindrical gas layer with an imposed flux at the bottom and a fixed temperature along the side, using a combination of direct numerical simulations and laboratory experiments. The experimental approach allows us to extend by two orders of magnitude the explored range in terms of flux Rayleigh number. We identify a scaling law governing the root-mean-square horizontal velocity and explain it through a dimensional analysis based on heat transport in the turbulent regime. Using particle image velocimetry, we experimentally confirm, for the most turbulent regimes, the presence of a drifting persistent pattern consisting of radial branches, as identified by Rein et al. (2023, J. Fluid Mech. 977, A26). We characterise the angular drift frequency and azimuthal wavenumber of this pattern as functions of the Rayleigh number. The system exhibits a wide distribution of heat flux across various time scales, with the longest fluctuations attributed to the branch pattern and the shortest to turbulent fluctuations. Consequently, the branch pattern must be considered to better forecast important wall heat flux fluctuations, a result of great relevance in the context of nuclear safety, the initial motivation for our study.
Quantum Emitters in Aluminum Nitride Induced by Zirconium Ion Implantation
Creators: name: Senichev, Alexander
name: Martin, Zachariah O.
name: Wang, Yongqiang
name: Matthiessen, Owen M.
name: Lagutchev, Alexei
name: Htoon, Han
name: Boltasseva, Alexandra
name: Shalaev, Vladimir M.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The integration of solid-state single-photon sources with foundry-compatible photonic platforms is crucial for practical and scalable quantum photonic applications. This study investigates aluminum nitride (AlN) as a material with properties highly suitable for integrated on-chip photonics specifically due to AlN capacity to host defect-center related single-photon emitters. We conduct a comprehensive study of the creation and photophysical properties of single-photon emitters in AlN utilizing Zirconium (Zr) and Krypton (Kr) heavy ion implantation and thermal annealing techniques. Guided by theoretical predictions, we assess the potential of Zr ions to create optically addressable spin-defects and employ Kr ions as an alternative approach that targets lattice defects without inducing chemical doping effects. With the 532 nm excitation wavelength, we found that single-photon emitters induced by ion implantation are primarily associated with vacancy-type defects in the AlN lattice for both Zr and Kr ions. The emitter density increases with the ion fluence, and there is an optimal value for the high density of emitters with low AlN background fluorescence. Additionally, under shorter excitation wavelength of 405 nm, Zr-implanted AlN exhibits isolated point-like emitters, which can be related to Zr-based defect complexes. This study provides important insights into the formation and properties of single-photon emitters in aluminum nitride induced by heavy ion implantation, contributing to the advancement of the aluminum nitride platform for on-chip quantum photonic applications.
description: The following article has been submitted to APL Quantum. After it is published, it will be found at AIP Publishing/APL Quantum
G-ACP: a machine learning approach to the prediction of therapeutic peptides for gastric cancer
Creators: name: Azad, Humera
name: Akbar, Muhammad Yasir
name: Sarfraz, Jawad
name: Haider, Waseem
name: Riaz, Muhammad Naeem
name: Ali, Ghulam Muhammad
name: Ghazanfar, Shakira
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer

description: Conventional Gastrointestinal (GI) cancer treatments are quite expensive and have major hazards. Nowadays, a different strategy places more emphasis on creating tiny biologically active peptides that do not cause severe poisoning. Anticancer peptides (ACPs) are found through experimental screening, which is time-dependent and frequently fraught with difficulties. Gastric ACPs are emerging as a promising GI cancer treatment in the current day. It is crucial to identify novel gastric ACPs to have an improved knowledge of their functioning processes and treatment of gastric cancer. As a result of the post-genomic era’s massive production of peptide sequences, rapid and effective ACPs using a computational method are essential. Several adaptive statistical techniques for distinguishing ACPs and non-ACPs have recently been developed. A variety of adapted statistically significant methods have been developed to differentiate between ACPs and non-ACPs. Despite significant progress, there is no specific model for the prediction of gastric ACPs because the specific model will predict a particular type of peptide more accurately and quickly. To overcome this, an initiative is taken for the creation of a reliable framework for the accurate identification of gastric ACPs. The current technique in particular contains four possible features along with one hybrid feature encoding mechanisms which are the target-class motif previously indicated by Amino Acid Composition, Dipeptide Composition, Tripeptide Composition (TPC), Pseudo Amino Acid Composition (PAAC), and their Hybrid. Machine Learning algorithms make high-performance and accurate prediction tools. Moreover, highly variable and ideal deep feature selection is done using an ANOVA-based F score for feature pruning. Experiments on a range of algorithms are carried out to identify the optimal operating strategy due to the diverse nature of learning. Following analysis of the empirical results, Naïve Bayes with TPC and Hybrid feature space outperforms other methods with 0.99 accuracy score on the testing dataset. To find the model generalization an external validation is carried out. In external datasets, the Extra Trees with PAAC features outperforms with the accuracy of 0.94. The comparison study shows that our suggested model will predict gastric ACPs more accurately and will be useful in drug development and gastric cancer. The predictive model can be freely accessed at https://github.com/humeraazad10/G-ACP.git.
Report from SONNET on Tour workshops
Creators: name: Kotler, Adrienne
name: Mischkowski, Niklas
name: Krajewska, Olga
Publisher: name: Zenodo
Year: 2022

description: D7.3 reports on the two SONNET on Tour workshops, including their agendas and minutes, featuring participants’ reflections and main conclusions. The report has been designed in an easy to read format, including pictures, quotes and other materials that were used in the workshop. Originally the workshops were planned as in-person workshops with SIE initiatives and local governments representatives as key audience. Whereas these audiences were reached in both workshops, both in diversity and numbers, the character of the workshops had to be adapted to continuing COVID restrictions. The workshops delivered the desired outcomes with the necessary adaptations also through hybrid and online formats. Key outcomes of the workshops were a set of potential ideas for new City Labs, developed by participants in each workshop based on a Social Innovation in Energy (SIE) canvas; communication material was produced in shape of a video about a community centre that participated in the SONNET City Lab in Bristol, showcasing the City Lab themes and approaches; and in Warsaw the workshop ended with an unanimous expression of interest between local government representatives and SIE initiatives to meet on a regular basis to exchange and support each other.
SONNET Energy Reads including infographics
Creators: name: Kotler, Adrienne
name: Mischkowski, Niklas
name: Krajewska, Olga
Publisher: name: Zenodo
Year: 2022

description: D7.4 compiles the five Energy Reads and five Infographics produced throughout the SONNET project. These outputs sought to translate select (exploitable) SONNET research outputs into succinct, visual and readable formats, in order to increase SONNET’s reach and impact.
Fermions, quantum gravity and holography in two dimensions
Creators: name: Asaduzzaman, Muhammad
name: Catterall, Simon
name: Samlodia, Abhishek
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study a model comprising $N$ flavors of Kähler Dirac fermion propagating on a triangulated two dimensional disk which is constrained to have a negative average bulk curvature. Dirichlet boundary conditions are chosen for the fermions. Quantum fluctuations of the geometry are included by summing over all possible triangulations consistent with these constraints. We show in the limit $N\to \infty$ that the partition function is dominated by a regular triangulation of two dimensional hyperbolic space. We use strong coupling expansions and Monte Carlo simulation to show that in this limit boundary correlators of the fermions have a power law dependence on boundary separation as one expects from holography. However we argue that this behavior breaks down for any finite number of massive fields in the thermodynamic limit and quantum fluctuations of the bulk geometry drive the theory into a non-holographic phase. In contrast, for massless fermions we find evidence that the boundary is conformal even for finite $N$. This is consistent with theoretical results in quantum Liouville theory.
description: Updated plots for finite $N$ and $m=1.0$
Evaluation of organisational context and requirements for leveraging building information models to support handover and operations & maintenance
Creators: name: Cavka, Hasan Burak
name: Staub-French, Sheryl
name: Pottinger, Rachel
Publisher: name: The University of British Columbia
Year: 2015

description: The handover of building information upon completion of a project is a critical and challenging step for owners. It is at this stage that the owner gets all the relevant information about the facility to support operations and maintenance (O&M) over its lifecycle. However, experience has shown that this step is often given little attention and that the information that is obtained is often erroneous, incomplete or unstructured. The increasing use of Building Information Modeling by architects, engineers and contractors and the resulting models that are created during the design and construction phases are now starting to be handed over to the owner as part of the as-built facility information. While BIM has the potential to consistently represent systems and equipment with the required information to support O&M, traditional design and construction models need to be significantly reworked to make them useful for O&M tasks. In order to achieve a digital BIM-based handover process we need to understand how a model-based process aligns with a given organizational structure. This paper presents the findings from a retrospective study of a large public owner and the handover process for a high performance institutional building. On this project, we analyzed the owner’s technical guidelines, interviewed numerous O&M personnel, analyzed the software and systems used and the associated information flows, and analyzed the building handover artifacts. In particular, this paper focuses on the analysis of the handover BIM for mechanical systems and its compliance with the owner’s technical guidelines and user requirements with the intent of characterizing the model structure and content required to support the owner’s O&M activities. This analysis identifies the extensive processing required to configure design and construction BIM’s to satisfy owner’s O&M needs. For example, geometric and non-geometric content needs to be added, the models need to be re-structured to define space-equipment-system definitions and relationships, and equipment names and system definitions need to be aligned with the technology infrastructure within the organisation. The findings suggest that in order to have a consistent and useful BIM for O&M at handover, the model structure and content should comply with the owner/user requirements and they need to be in alignment with the organisational and technological processes and infrastructures of the owner organisation.
Theory of universal diode effect in three-terminal Josephson junctions
Creators: name: Correa, Jorge Huamani
name: Nowak, Michal P.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We theoretically study the superconducting diode effect in a three-terminal Josephson junction. The diode effect in superconducting systems is typically related to the presence of a difference in the critical currents for currents flowing in the opposite direction. We show that in multi-terminal systems this effect occurs naturally without the need of the presence of any spin interactions and is a result of the presence of a relative shift between the Andreev bound states carrying the supercurrent. On an example of a three-terminal junction, we demonstrate that the non-reciprocal current in one of the superconducting contacts can be induced by proper phase biasing of the other contacts, provided that there are at least two Andreev bound states in the system and the symmetry of the system is broken. This result is confirmed in numerical models describing the junctions in both the short- and long-regime. By optimizing the geometry of the junction, we show that the efficiency of the realized superconducting diode exceeds $35 \%$. We relate our predictions to recent experiments on multi-terminal junctions, in which non-reciprocal supercurrents were observed.
IFISH6: Successes and Lessons for the Future
Creators: name: Milkovich, Pamela J.
name: Roome, Amanda B.
name: Sorensen, Julie A.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Physical Sciences not elsewhere classified
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: The IFISH6 conference brought together researchers and practitioners from around the world to discuss innovations and progress in protecting the safety and health of workers in the fishing, aquaculture, and seafood processing industries. This brief provides an overview of the feedback that was received about this conference, ideas for enhancing the impact of IFISH7, and methods of continuing collaboration and innovation in between.
Simultaneous X-ray and optical variability of M dwarfs observed with eROSITA and TESS
Creators: name: Joseph, W. M.
name: Stelzer, B.
name: Magaudda, E.
name: Martínez, T. Vičánek
Publisher: name: arXiv
Year: 2024
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We study variability through simultaneous optical and X-ray observations for the first time in a statistical sample of 256 M dwarfs. Such observations are required to constrain the flare frequency and energetics and to understand the physics of flares. Using light curves from extended ROentgen Survey with an Imaging Telescope Array (eROSITA) on board the Russian Spektrum-Roentgen-Gamma mission (SRG) and the Transiting Exoplanet Survey Satellite (TESS), we identify 256 M dwarfs with simultaneous detections. The 25 brightest or most variable in X-rays are selected. Stellar parameters are obtained from Gaia and 2MASS, while X-ray fluxes are derived from eROSITA count rates. Proximity (<100 pc), fast rotation (P_rot < 9 d), and high flare frequency characterize our sample. Optical and X-ray duty cycles correlate positively, with faster rotators exhibiting more variability. Stars with frequent X-ray flares often coincide with optical flares. Analyzing individual X-ray flares is hindered by eROSITA's low cadence, mitigated by leveraging TESS optical flares and solar flare knowledge. An exponential fit to 21 X-ray light curves post-optical flares reveals a correlation between X-ray and optical flare energies. Despite uncertainties due to poor eROSITA sampling, our study underscores the significance of simultaneous all-sky surveys in diverse wavelengths for unprecedented insights into stellar variability.
Assessment of Occupational Hazards and Role of Life-Saving Gadgets Among Small-Scale Motorised Fishers on India’s Southernmost Coasts
Creators: name: Mariadason, Sabu
name: VP, Preethi
name: Parappurathu, Shinoj
Publisher: name: Taylor & Francis
Year: 2025
Subjects: subject: Neuroscience
subject: Environmental Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy

description: Marine fishing ranks among the most hazardous occupations globally, with risks intensifying for small-sized vessels venturing deeper into the sea due to the scarcity of near-shore fish and high market demand. This study identifies various occupational hazards and the use of safety equipment among small-scale motorized fishers using traditional fishing methods in the southernmost coastal regions of India. The primary data were collected from 253 artisanal small-scale motorized fishers through a multi-stage stratified random sampling method. For this purpose, a structured interview schedule, comprising both closed and open-ended questions was employed. The Relative Importance Index (RII) was utilized to compare fishers’ perceived impact across various occupational hazard categories, while the frequency distribution of the adoption of life-saving gadgets across various adoption categories was analyzed based on the adoption rate to assess the usage patterns of available life-saving devices. The findings indicate environmental, psychological, and vessel-related hazards have the greatest impact on fishers, with specific hazards including “cyclones”, “collisions”, “capsizing”, “high currents”, “lack of visibility”, “fatigue”, “stress”, “anxiety”, and “insomnia”. Despite awareness of safety measures, the usage of life jackets and life buoys remains low among fishers. Fishers in motorized crafts benefit from modern communication and navigation tools to mitigate sea-related uncertainties (Mobile phone − 84.19%, GPS − 87.75%, VHF radio − 67.98%, AIS − 20.16%). The study highlights the urgent need for strict enforcement of safety measures during the registration and renewal processes for fishing vessels. Enhancing safety in this sector necessitates increased safety awareness, comprehensive training, and regular annual inspections.
Resolving high-z Galaxy Cluster properties through joint X-ray and Millimeter analysis: a case study of SPT-CLJ0615-5746
Creators: name: Mastromarino, Claudio
name: Oppizzi, Filippo
name: De Luca, Federico
name: Bourdin, Hervé
name: Mazzotta, Pasquale
Publisher: name: arXiv
Year: 2024
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a joint millimetric and X-ray analysis of hot gas properties in the distant galaxy cluster SPT-CLJ0615-5746 ($z = 0.972$). Combining Chandra observations with the South Pole Telescope (SPT) and Planck data, we perform radial measurements of thermodynamical quantities up to a characteristic radius of $1.2\, R_{500}$. We exploit the high angular resolution of Chandra and SPT to map the innermost region of the cluster and the high sensitivity to the larger angular scales of Planck to constrain the outskirts and improve the estimation of the cosmic microwave background and the galactic thermal dust emissions. Besides maximizing the accuracy of radial temperature measurements, our joint analysis allows us to test the consistency between X-ray and millimetric derivations of thermodynamic quantities via the introduction of a normalization parameter ($η_T$) between X-ray and millimetric temperature profiles. This approach reveals a substantial high value of the normalization parameter, $η_T=1.46^{+0.15}_{-0.22}$, suggesting that the gas halo is aspherical. Assuming hot gas hydrostatic equilibrium within complementary angular sectors that intercept the major and minor elongation of the X-ray image, we infer a halo mass profile that results from an effective compensation of azimuthal variations of gas densities by variations of the $η_T$ parameter. Consistent with earlier integrated X-ray and millimetric measurements, we infer a cluster mass of $M^{\text{HE}}_{500} = 10.67^{+0.62}_{-0.50}\,\, 10^{14}\,M_{\odot}$.
description: 13 pages and 10 figures
Letter: Section 106 Review - Trenching for New Industrial Washer, Bellows Air Force Station
Creators: name: Wilson, Michael
Publisher: name: Department of Land and Natural Resources, State of Hawaii
Year: 1998
Subjects: subject: Industrial Washer
valueUri: https://core.tdar.org/browse/other-keyword/165121/industrial-washer

description: SHPO review of trenching for the new industrial washer at Bellows AFS. The project is located in an area of moderate probability for discovering archaeological resources including subsurface cultural materials associated with historic and prehistoric habitation and has the potential to have an adverse effect on these deposits.
A case study on the use of LED temporary construction lighting system
Creators: name: Huang, Yi Jie
name: Lin, Ken-Yu
name: Angeley, Jeff
Publisher: name: The University of British Columbia
Year: 2015

description: Adequate lighting is a necessity on construction sites not just for work completion, but also for the work quality, worker safety, and project productivity. This paper discusses the problems associated with traditional temporary lighting on construction sites and presents a case study on using LED temporary construction lighting as a potential solution. Various studies have shown that the traditional methods of providing temporary lighting are inadequate due to their non-compliance with OSHA requirements; visual discomfort; constant maintenance; and impacts to productivity, safety and health. On the other hand, studies have shown that using LED as a source of temporary construction lighting provides benefits over the traditional lighting system, even though such uses are still rare within the industry. Using LED for temporary construction lighting, however, is subject to the high initial materials cost and other drawbacks. To this end, the objective of the research is to provide a deeper understanding of LED temporary construction lighting and ascertain its benefits and limitations through a case study. The study involves the University of Washington’s Bothell Science and Academic Building Project. The study involves interviews with both the lighting system vendor and onsite project personnel; survey questionnaire distributed to the field workers; and cost analysis of the LED temporary lighting system. The case study concluded that the benefits of using LED temporary construction lighting outweighed its limitations, but the individual cost savings may belong to different parties and may not necessarily be passed on to the owner depending on the contractual arrangements.
A hierarchical approach towards identification of novel inhibitors against L, D-transpeptidase YcbB as an anti-bacterial therapeutic target
Creators: name: Alawam, Abdullah S.
name: Alneghery, Lina M.
name: Alwethaynani, Maher S.
name: Alamri, Mubarak A.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences

description: The bacterial cell wall, being a vital component for cell viability, is regarded as a promising drug target. The L, D-Transpeptidase YcbB enzyme has been implicated for a significant role in cell wall polymers cross linking during typhoid toxin release, β-lactam resistance and outer membrane defect rescue. These observations have been recorded in different bacterial pathogens such as Salmonella Typhimurium, Citrobacter rodentium, and Salmonella typhi. In this work, we have shown structure based virtual screening of diverse natural and synthetic drug libraries against the enzyme and revealed three compounds as LAS_32135590, LAS_34036730 and LAS-51380924. These compounds showed highly stable energies and the findings are very competitive with the control molecule ((1RG or (4 R,5S)-3-({(3S,5S)-5-[(3-carboxyphenyl)carbamoyl]pyrrolidin-3-yl}sulfanyl)-5-[(1S,2R)-1-formyl-2-hydroxypropyl]-4-methyl-4,5-dihydro-1H-pyrrole-2-carboxylic acid or ertapenem)) used. Compared to control (which has binding energy score of −11.63 kcal/mol), the compounds showed better binding energy. The binding energy score of LAS_32135590, LAS_34036730 and LAS-51380924 is −12.63 kcal/mol, −12.22 kcal/mol and −12.10 kcal/mol, respectively. Further, the docked snapshot of the lead compounds and control were investigated for stability under time dependent dynamics environment. All the three leads complex and control system showed significant equilibrium (mean RMSD < 3 Å) both in term of intermolecular docked conformation and binding interactions network. Further validation on the complex’s stability was acquired from the end-state MMPB/GBSA analysis that observed greater contribution from van der Waals forces and electrostatic energy while less contribution was noticed from solvation part. The compounds were also showed good drug-likeness and are non-toxic and non-mutagenic. In short, the compounds can be used in experimental testing’s and might be subjected to structure modification to get better results.
Letter: Section 106 Compliance - Additional Work for Bellows Excess Land Underground Storage Tank (UST) Project, Phase 4, Bellows AFS
Creators: name: Johns, Timothy
Publisher: name: Department of Land and Natural Resources, State of Hawaii
Year: 2000
Subjects: subject: 50-80-15-4850
valueUri: https://core.tdar.org/browse/site-name/26953/50-80-15-4850
subject: 50-80-15-5464
valueUri: https://core.tdar.org/browse/site-name/117515/50-80-15-5464
subject: OU7 UST Removal
valueUri: https://core.tdar.org/browse/other-keyword/165052/ou7-ust-removal

description: SHPO letter regarding excess land underground storage tank project.
Search for long-lived particles decaying in the CMS muon detectors in proton-proton collisions at $\sqrt{s}$ = 13 TeV
Creators: name: CMS Collaboration
Publisher: name: arXiv
Year: 2024
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A search for long-lived particles (LLPs) decaying in the CMS muon detectors is presented. A data sample of proton-proton collisions at $\sqrt{s}$ = 13 TeV corresponding to an integrated luminosity of 138 fb$^{-1}$ recorded at the LHC in 2016-2018, is used. The decays of LLPs are reconstructed as high multiplicity clusters of hits in the muon detectors. In the context of twin Higgs models, the search is sensitive to LLP masses from 0.4 to 55 GeV and a broad range of LLP decay modes, including decays to hadrons, $τ$ leptons, electrons, or photons. No excess of events above the standard model background is observed. The most stringent limits to date from LHC data are set on the branching fraction of the Higgs boson decay to a pair of LLPs with masses below 10 GeV. This search also provides the best limits for various intervals of LLP proper decay length and mass. Finally, this search sets the first limits at the LHC on a dark quantum chromodynamic sector whose particles couple to the Higgs boson through gluon, Higgs boson, photon, vector, and dark-photon portals, and is sensitive to branching fractions of the Higgs boson to dark quarks as low as 2 $\times$ 10$^{-3}$.
description: Replaced with the published version. Added the journal reference and the DOI. All the figures and tables can be found at http://cms-results.web.cern.ch/cms-results/public-results/publications/EXO-21-008 (CMS Public Pages)
title: A Hidden Markov Model Based Approach to Detect Rogue Access Points
Creators: name: Shivaraj, Gayathri
Publisher: name: Old Dominion University
publisherIdentifier: https://ror.org/04zjtrb98
publisherIdentifierScheme: ROR
Year: 2009

description: One of the most challenging security concerns for network administrators is the presence of Rogue access points. The challenge is to detect and disable a Rogue access point before it can cause hazardous damage to the network. This thesis proposes a statistically based approach to detect Rogue access points using a Hidden Markov Model, which is applied to passively measure packet-header data collected at a gateway router or any monitoring point. This approach utilizes variations in packet inter-arrival time to differentiate between authorized access points and Rouge access points. This approach used the inter-arrival time of a packet as a distinguishing parameter because it varies drastically for a normal activity and an intrusive activity. The main contribution of this thesis is the design and development of a Hidden Markov Model by analyzing Denial of Service attacks of 802.11 based Wireless Local Area Networks which affect the traffic characteristics like packet size, inter-arrival time, delays etc. Experimental validations demonstrate the effectiveness of the approach. This trained Hidden Markov Model can detect the presence of a Rogue access point promptly within one second with extreme accuracy (very low false positive and false negative ratios are obtained). The success of this approach lies in the fact that it leverages knowledge about the behavior of the traffic characteristics of 802.11 based Wireless Local Area Networks and the properties of Denial of Service attacks. Experiments were also performed to improve the accuracy of our I-IMM model. This approach is scalable and non-intrusive, requiring little deployment cost and effort, and is easy to manage and maintain. This research was also accepted and published in MILCOM 2008, a technical Conference held in San Diego.