bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cementitious Composites for Supercritical Geothermal Well Applications
Authors: Skorpa Ragnhild , Feneuil Blandine , Sugama Toshi , Pyatina Tatiana 
Published: September 2023

Abstract
In the transition from fossil fuels to sustainable, renewable energy sources, development of geothermal energies sources provides an important contribution to ensure the green shift. Per today, most geothermal wells operate at a temperature range of 150–300 °C, but in order to increase power production, a transition to more supercritical conditions (∼500 °C) is needed. It is generally accepted that Ordinary Portland Cement (OPC) is not suitable for supercritical wells.
In this paper we report mechanical properties and pressure cycling-test (function tests) results of two alternative Calcium-Aluminate-Cement (CAC)-based systems at 300°C and 400°C hydrothermal conditions.
Down-scaled simplified functional tests to mimic well-start up have been performed to evaluate cement sheath integrity under cycling pressure and constant temperature. The setup consists of a downscaled section of a wellbore with casing-cement-rock, and with the use of a pressure shaft inside the casing pressure cycling experiments are performed to investigate the cement sheath integrity and degradation under the increasing pressure loadings. Lower strength and Young’s modulus CAC/silica flour blend failure pressure was higher than that for CAC/silica/phosphate blend. Both CAC formulations outperformed OPC/Silica HT blend.
A Fully Nonlinear Potential Flow Based 2D Numerical Wave Tank Using Multiple Flux Boundary Element Method
Authors: Babu Nitin , Rajendran Suresh 
Published: September 2023

Abstract
Numerical wave tanks are the cutting-edge tool for modeling a fully nonlinear free surface wave. Potential flow modeling based Numerical Wave Tank (NWT) is a powerful approach when a robust solver is needed for nonlinear wave structure interaction problems of practical significance. In this paper, a Mixed Euler Lagrange (MEL) solution based on Higher Order Boundary Element Method (HOBEM) is used for modeling the NWT. Free surface velocities are calculated by solving the boundary value problem using HOBEM in the Eulerian frame of reference while the time integration happens in the Lagrangian frame. However, the traditional HOBEM suffers from the so called ‘corner problem’, where the normal vector at the physical corner of a wave tank model becomes ill defined, leading to errors. This paper presents the multiple flux technique which is used to solve the corner problem in a HOBEM based numerical wave tank. The comparison of the multiple flux technique is made with a traditional HOBEM based boundary value problem while discussing its implementation in detail. A two-dimensional NWT based on multiple flux boundary element method and Mixed Euler Lagrange (MEL) technique with fully nonlinear free surface boundary is used for generating nonlinear waves.
Maritime Navigation Simulations to Measure Captain’s Perceived Operational Limits for Wind Turbine Feeder Barges
Authors: Mohtat Ali , Hertel Melissa , Hooper Christopher , Jors Charles , Van Gundy Coulston , Souquet Benjamin 
Published: September 2023

Abstract
A paradigm shift from conventional fossil fuels to alternative resources is underway in the United States. Offshore wind energy has gained increasing attention in the past few years due to the energy content of wind; however, installation is challenging due to environmental conditions. There has been research on overcoming the supply chain issues introduced by the U.S. setting a national target of 30 G.W. of installed offshore wind capacity by 2030, especially due to limited Jones Act Compliant installation vessels. One of the most accepted solutions is a Jones Act Compliant feeder barge.
The concept of using feeder barges to supply Wind Turbine Installation Vessels (WTIVs) is relatively new. This presentation describes the technical analysis of data collected from a series of maritime navigation mission simulations in a Full Mission Ship Simulator of the type used to train tug operators. The maneuvers analyzed were planned and revised by experienced tug operators, and the performance and limitations were judged by experienced captains after performing each maneuver. The significant wave height (Hs), wave period (Tp), and wave field directionality selected for the study are based on analysis of measured environmental conditions at the project site. The weather conditions used in the simulation were actual wave spectrum data modeling the wave energy from the most active direction and frequency bins.
Transient Temperature and Machine Learning Modeling for Wellbore Drilling
Authors: Gonzalez Angarita Juan Camilo , Belayneh Mesfin , Aadnøy Bernt 
Published: September 2023

Abstract
During drilling, several factors affect the drilling fluid’s well-flowing temperature such as the wellbore geometry, depth, penetration rate, flow rate, shut-in and circulation durations, pump and rotary inputs, fluid, and thermo- and petrophysical formation properties. Both pressure and the well temperature affect the physical and rheological properties of the drilling fluid, which controls the hydraulics and equivalent circulation pressures. The temperature impact on the density of the drilling fluid influences the buoyancy factor, which is one of the input parameters for drill string mechanics designs. Therefore, accurately predicting the wellbore temperature is important to control the well pressure. This paper presents mathematical and machine learning modeling.
The transient temperature model is developed based on energy balance that describes the heat transfer phenomenon in the wellbore and the formation. The modeling couples the pipe and annular energy sources as well. The fluid properties (density and viscosity) are updated with calculated temperature, which is then used as input for further temperature prediction. The equations are solved numerically with the Crank-Nicholson finite differences method.
Moreover, the machine learning (ML) model is developed based on the data generated from the transient temperature model. The result shows that the ML model builds the temperature profile much faster than the mathematical model, with a high degree of accuracy.
Numerical Estimation of Hydrodynamic Derivatives of a Biomimetic Autonomous Underwater Vehicle by Captive Model Tests
Authors: D. Vignesh , Jadhav Pramod Suresh , Thondiyath Asokan , Vijayakumar Rajagopalan , Krishnankutty Parameswaran 
Published: September 2023

Abstract
Autonomous Underwater Vehicles are used to perform underwater inspection, survey, and surveillance tasks and biomimetic AUVs are finding wide applications due to their inherent advantages like a stealth operation, power efficiency, etc. Since AUVs run on batteries, they should be well-maneuvrable and controllable for the desired operation, and provide longer endurance. So, the accurate prediction of the hydrodynamic coefficients of an AUV is crucial throughout the design phase. In the present study, a suitable 6 DOF mathematical model is selected and the captive model tests are performed in the numerical environment for the designed bio-inspired AUV. The steady and unsteady simulations are carried out in horizontal and vertical planes to arrive at the trajectories of forces and moments. The hydrodynamic derivatives are then obtained by solving these trajectories using the Fourier analysis. Finally, the vehicle’s straight-line stability is assessed in horizontal and vertical planes.
Tidal Energy in Indonesia: Opportunities and Challenges
Authors: Firdaus Ahmad M. 
Published: September 2023

Abstract
The transition to renewable energy is a vision shared by many countries, including Indonesia. Utilising renewable energy is expected to address energy deficits and improve environmental conditions in the future. As the world’s largest archipelagic country, Indonesia has vast potential to harness energy from the ocean, including tidal streams. Many energy converter technology developers and energy business entities have shown interest in deploying their technologies in Indonesia. However, investing in the electricity sector in this country, as well as in other countries, is complex and requires comprehensive information before committing to energy provision projects. Since generating electricity from the tidal stream is relatively new, and there is limited implementation of tidal turbine generators worldwide, understanding the engineering aspects and business issues is essential. For instance, the available resource is not the only essential information for turbine developers; understanding the regulation and government policies in energy sector related, as well as understanding the local demand, are also crucial for the future development of the industry. This paper discusses the opportunity and challenges of implementing tidal energy conversion in Indonesia, from the technical, regulatory, and business aspects of ocean energy provision. The resources from recent studies, the characteristics of the ocean-related to energy conversion, and other technical aspects are also discussed in this paper.
Hydrodynamic Performance of Three Different Oscillating Water Column Devices in Regular Waves
Authors: Socrates S. Sandana , Venkatachalam Sriram , V. Sundar 
Published: September 2023

Abstract
The concept of oscillating water column (OWC) integrating with coastal structures is popular in marine engineering to extract energy from the ocean. The objective of the study is to numerically examine the newly proposed three different fixed oscillating water columns with a forward duct at the bottom of OWC named Forward Duct OWC (FD-OWC), a curved wall at the front side of OWC with a radius equal to the height of OWC called as Curved Front Lip Wall OWC (CFLW-OWC), and hybridization of the curved and vertical wall at the front portion of OWC named as Curved Vertical Front Lip Wall (CVFLW-OWC). This paper used a three-dimensional numerical model to investigate the hydrodynamic performance of three OWC devices under regular waves for constant wave steepness. The numerical model is based on the open-source computational fluid dynamics package OpenFOAM. The numerical results are validated with the available experimental results. The influence of the wave amplification factor, wave power absorption coefficient, the air pressure inside the three OWC chambers, hydrodynamic efficiency, and dynamic water pressure inside and outside the three OWC chambers are evaluated. The results show that the CVFLW-OWC exhibits better hydrodynamic efficiency.
Validation of a Time Domain Panel Code for Prediction of Impulsive Wave Loads on Naval Ships
Authors: van Walree Frans , Sgarioto Daniel , Graham Peter 
Published: September 2023

Abstract
The focus of the present paper is on the prediction of wave loads experienced by a patrol boat and frigate at high speed. The basic principles of a potential flow panel method to predict motions and loads are discussed. Next the coupling to a finite element method representing the ship structure is described. A description of scale model tests performed for both hull forms is given. A number of validation cases for a generic patrol boat and frigate hull form are discussed, whereby experimental and simulated responses and time traces of motions, accelerations, pressures and bending moments in regular and irregular waves are compared.
A Hybrid Approach to Detect Bad Hole Cleaning
Authors: Tabib Mandar V. , Nivlet Philippe , Skogestad Jan Ole , Nybø Roar , Rasheed Adil 
Published: September 2023

Abstract
Bad hole cleaning can lead to severe drilling incidents such as stuck pipes, pack-offs, losses, well instabilities, and gas kicks. This paper presents a non-intrusive hybrid approach to detecting bad hole cleaning. In the hybrid approach, we combine a physics-based model solving multi-phase flow equations for cuttings transport with advanced data-driven and machine learning models in a non-intrusive way. We also demonstrate how data-driven modeling can enhance the accuracy of a physic-based model and vice versa in the context of drilling operations with actual data. We also demonstrate how the hybrid approach can be employed to integrate new data sources from the drilling process, which the pure physics-based models were not designed to incorporate. In particular, we studied the use of pressure sensors in the annulus along the drill string. These sensors are uniquely well suited to detect drilling problems such as bad hole cleaning, as they provide continuous data along a spatial dimension. This is a significant advantage over the sensors on the topside or the bottom-hole assembly. However, bad hole cleaning has a complicated and noisy signature with significant spatio-temporal variations. It is therefore, necessary to integrate the best of data analysis, machine learning and traditional modelling, to deliver a hybrid modelling framework (in this case — a non intrusive hybrid method) that can simulate the real-world hole cleaning drilling operations more accurately and enable better decision making. The results of the hybrid method application on two challenging drilling operation cases are presented here that demonstrates its potential, and conclusions are drawn for further improvement of this hybrid methodology.
Dissociation Pressures of CO2 Hydrate in Sulfate Solutions
Authors: Zhou Ying , Maeda Nobuo , Li Huazhou 
Published: September 2023

Abstract
Carbon capture and storage (CCS) has been a popular strategy to mitigate climate change and has attracted significant attention from both industry and academia. CO2 can be stored in the form of CO2 hydrate in deeper locations in an ocean, which makes it a potential option for CO2 sequestration. Dissolved salts in the ocean brine can significantly affect the dissociation pressure of CO2 hydrate. Although various experimental studies have been conducted to investigate the phase behavior of CO2 hydrate in brine, there are few studies focusing on the effect of sulfate salts on the dissociation pressure of CO2 hydrate. In this study, we built an in-house experimental setup to investigate the effect of monovalent sulfate salts and divalent sulfate salts on the dissociation pressure of CO2 hydrate. The dissociation pressures of CO2 hydrate in Na2SO4, MgSO4, and CuSO4 aqueous solutions were measured using the isochoric pressure search method at two different concentrations (6.24 wt% and 12.48 wt%) over the temperature range of 274.44–282.15 K and the pressure range of 1.63–4.03 MPa. The experimental results show that the dissociation pressures of CO2 hydrate in Na2SO4 and MgSO4 solutions increase compared to that in pure water, and the dissociation pressure of CO2 hydrate in sulfate solutions increases with an increasing salt concentration. But CuSO4 barely affects the dissociation pressure of CO2 hydrate. These findings help clarify how the sulfate salts affect the dissociation pressure of CO2 hydrate.
Novel parvovirus in an outbreak of fatal enteritis in European hedgehogs (
Erinaceus europaeus
), Italy, 2022
Authors: Lanave Gianvito , Diakoudi Georgia , Pellegrini Francesco , Lombardi Roberto , Prioletti Michela , Circella Elena , Camarda Antonio , Di Martino Barbara , Camero Michele , Decaro Nicola , Bányai Krisztián , Lavazza Antonio , Buonavoglia Canio , Martella Vito 
Published: September 2023

ABSTRACT

Starting from June 2022, increased mortality associated with enteric signs was reported in European hedgehogs (
Erinaceus europaeus
) recovered at a regional wildlife rescue center, in Apulia, Italy. Cases of enteric disease were observed until the end of the breeding season, despite increased biosafety measures. A novel parvovirus was identified using metaviromic, and parvovirus-like particles were observed in the stools on electron microscopy observation. The virus was detected in the fecal samples of all the animals tested (
n
= 9) and in the internal organs (liver, spleen, and kidney) of three out of nine animals using a specific quantitative assay. In the full-length genome, the parvovirus was closely related (90.4% nt) to a chaphamaparvovirus identified in an Amur hedgehog (
Erinaceus amurensis
) in Asia and to chaphamaparvoviruses (≤ 70% nt) detected in bats and rodents. Since chaphamaparvoviruses are considered as pathogen in rodents, it will be important to investigate the pathogenic role, if any, of these parvoviruses in hedgehogs.

IMPORTANCE

European hedgehogs (
Erinaceus europaeus
) are common in Europe. This species has been shown to harbor occasionally zoonotic pathogens, including bacteria, fungi, and viruses. Exploring the virome of wildlife animals is important for animal conservation and also to assess zoonotic risks. Our metaviromic investigation identified a novel parvovirus from an outbreak of enteritis in European hedgehogs housed in a wildlife rescue center, extending the spectrum of potential viral pathogens in this species.
An Equation for the Calculation of Saturated Water Contents in Silicate Melts: A New Version
Authors: Gnuchev Ya. Yu. , Bychkov D. A. , Koptev-Dvornikov E. V. 
Published: September 2023

Abstract—A set of experimental data compiled from the literature comprises results of 394 quenching experiments that characterize the saturated water content within wide ranges of intensive parameters of silicate systems. Analysis of the main types of published models of water solubility in silicate melt showed that the equation by G. Moore et al. (1998) best describes experimental results. The Moore equation, converted to an exponential form, was recalibrated on an extended set of experimental data, and the new coefficients for this equation are:a= 918;bAl2O3 = – 0.712;bFeO = – 0.749;bNa2O = 0.806;c= 1.087; andd= –11.45. The Moore equation with new coefficients makes it possible to predict the saturated water content in silicate melts accurate to ±1 to ±2 relative % in the range of melt compositions from basalt to rhyolite, pressures from atmospheric to 15 kbar, and temperatures from 550 to 1300°C.
Kleefstra Syndrome—Dental Manifestations and Needs: A Case Report with a Literature Review
Authors: Karlak Victoria , Jankowski Jakub , Kolasińska Julia , Nijakowski Kacper 
Published: September 2023

Kleefstra syndrome (KS) is a rare genetic disorder (

prevalence
<
1
/
1

000

000

) characterised by autistic spectrum disorder (ASD), childhood hypotonia, and seizures. A typical facial appearance includes microcephaly, arched eyebrows, synophrism, hypertelorism, a short nose, midface hypoplasia, prognathism, and tongue protrusion. This case report presents a 19-year-old female with KS from a dentist’s perspective. The patient demonstrates limited mouth opening with a slight deviation of the mandible on the left side. The mandibular prognathism and anterior open bite are visible. A generalised inflammatory gingival enlargement is most likely a response to local irritants like plaque and calculus but is enhanced by the patient’s mouth breathing habit. Also, the tongue is unusually large—macroglossia. Dental anomalies were diagnosed by digital panoramic radiograph, including dilaceration of the maxillary left second premolar and taurodontism. The patient was qualified to be treated under general anaesthesia with multiple extractions, restorations, hygienisation procedures, and tooth remineralisation. This individual should also be considered for orthodontic treatment and an eventual tongue reduction procedure. In the case of KS, multidisciplinary cooperation as well as frequent dental check-ups with fluoride prophylaxis are recommended. Unfortunately, dental treatment is still not an integral part of taking care of disabled children and youth with rare diseases.
Combinatorial Treatment with PARP and MAPK Inhibitors Overcomes Phenotype Switch-Driven Drug Resistance in Advanced Melanoma
Authors: Ferretti Lorenza P. , Böhi Flurina , Leslie Pedrioli Deena M. , Cheng Phil F. , Ferrari Elena , Baumgaertner Petra , Alvarado-Diaz Abdiel , Sella Federica , Cereghetti Alessandra , Turko Patrick , Wright Roni H. , De Bock Katrien , Speiser Daniel E. , Ferrari Roberto , Levesque Mitchell P. , Hottiger Michael O. 
Published: September 2023

Abstract

Metastatic melanoma is either intrinsically resistant or rapidly acquires resistance to targeted therapy treatments, such as MAPK inhibitors (MAPKi). A leading cause of resistance to targeted therapy is a dynamic transition of melanoma cells from a proliferative to a highly invasive state, a phenomenon called phenotype switching. Mechanisms regulating phenotype switching represent potential targets for improving treatment of patients with melanoma. Using a drug screen targeting chromatin regulators in patient-derived three-dimensional MAPKi-resistant melanoma cell cultures, we discovered that PARP inhibitors (PARPi) restore sensitivity to MAPKis, independent of DNA damage repair pathways. Integrated transcriptomic, proteomic, and epigenomic analyses demonstrated that PARPis induce lysosomal autophagic cell death, accompanied by enhanced mitochondrial lipid metabolism that ultimately increases antigen presentation and sensitivity to T-cell cytotoxicity. Moreover, transcriptomic and epigenetic rearrangements induced by PARP inhibition reversed epithelial–mesenchymal transition-like phenotype switching, which redirected melanoma cells toward a proliferative and MAPKi-sensitive state. The combination of PARP and MAPKis synergistically induced cancer cell death both in vitro and in vivo in patient-derived xenograft models. Therefore, this study provides a scientific rationale for treating patients with melanoma with PARPis in combination with MAPKis to abrogate acquired therapy resistance.

Significance:
PARP inhibitors can overcome resistance to MAPK inhibitors by activating autophagic cell death and reversing phenotype switching, suggesting that this synergistic combination could help improve the prognosis of patients with melanoma.
Universal Prostitution: Francis Picabia's Diagrams of Proletarianization
Authors: Mansoor Jaleh 
Published: September 2023

Abstract
This essay argues that the diagram and mechanomorph, those idioms for which Francis Picabia is most known in the history of the avant-garde, pushed past representation on the one hand and aesthetic abstraction on the other to access and articulate the historical specificity of the emergent proletarian subject position. Split between human labor bearer and source of abstract labor, the worker becomes both appendage and analog to productive technology as a node in the circulation of value. Borrowing language from Marx, who used the term “universal prostitution” to describe surplus-value-productive, or modern, labor that not only internally divides but also pits the worker against her or his own interests, Picabia's work investigates the advent of the post-human as a function of value. In this sense, his work is indicative of “real,” or concrete, abstraction.
Ahlam Shibli's Death and Photography in
Arabic: A Letter from a Pillar of Salt
Authors: Feldman Hannah 
Published: September 2023

Abstract
This letter turns to late-nineteenth-century understandings of photography in Arabic as al-taswir al-shamsi—which translates roughly as “solar imaging”—to read a suite of photographs by Ahlam Shibli that depicts the ways in which martyrs of the second intifada are remembered in Nablus. Drawing on connotations embedded in the Arabic term taswir and in a careful study of the way light works in Shibli's photographs, the letter—addressed to you from a person who identifies as a pillar of salt, stuck, looking back but wanting to move forward—makes the argument that, far from indexing a past built on death and displacement, the photographs give light to an alternate social reality in which the Palestinian lives free from the constraints of life as the Israeli's have allowed it, which is to say life as a condition of death.