bluuebunny/crossref_metadata_2025_split huggingface dataset:
CPT-Based Geotechnical Characterization of Foundation Zone Sediments at Atlantic Shores Offshore Wind Farm Development
Authors: Trandafir Aurelian C. , Adhikari Sudarshan , Peralta Proserpine , Broughton Aaron , (Dow) Fraser Jack , Hargrave Deanne 
Published: April 2023

AbstractThis study presents site-specific CPT-based correlation relationships for preconsolidation pressure, undrained shear strength, relative density and effective friction angle, developed for geotechnical characterization of foundation zone sediments at the Atlantic Shores offshore wind farm development. Results of laboratory geotechnical tests on samples from 49 soil borings performed at the Lease Area were correlated with corresponding measured cone resistance values from companion seabed or downhole CPTs. Ranges of overconsolidation ratios estimated using CPT-derived preconsolidation pressures from site-specific correlation relationships are in good agreement with overconsolidation ratios derived from laboratory measured preconsolidation pressures for various cohesive soil units. Interpreted ranges of cone resistance factors (i.e., Nkt) required in CPT-based undrained shear strength evaluation for cohesive soil units are significantly wider compared to the typical range of 15 to 20 representative for Gulf of Mexico clay sediments, as a result of large variability in soil plasticity as well as intermixed nature of the soils. Representative ranges of relative density and effective friction angle obtained from CPT data using site-specific correlation relationships, developed for the cohesionless soils at the Lease Area, are consistent with ranges of laboratory measured values.
Using Geophysics and Geotechnics to Maximize the Building of a Paleolandscape Reconstruction for Both an Archaeological and Geological History
Authors: Swanson Eric , Scherschel Craig , Fraser Jack , Puckett Neil , Joy Shawn , Blacker Kieran 
Published: April 2023

AbstractThe purpose of this paper is to present the refined and novel components that comprise a methodological proposal of the best practice for the larger paleolandscape reconstruction process in offshore wind development during Site Characterization. To accomplish this goal, several methods were used to bring subject matter experts together to discuss the needs and objectives relative to regulatory compliance, cultural interest, and engineering design in a multi-phase programmatic and survey process.The expansive results from this modeling approach have allowed Qualified Marine Archaeologists (QMAs) to develop, in collaboration with geologists and engineers, the paleolandscape ground model ahead of typical developments by several months. The produced data innovatively multiplied available metrics, allowing adjustment of the regional geologic timeline to date marine Transgressive Channel Groups (TCGs) in the area and allowed better sequencing of the late Pleistocene and corrected some gaps in the region's depositional sequence model. With the resulting ground model, archaeologists, geologists, and engineers improved comprehensive qualitative analyses that can assist with understanding the impacts that anthropogenic activities have in the region.The novel and additive information that this research offers is multi-fold. The methods employed here can aid in reducing challenges and delays associated with traditional non-multi-phase approaches when adopted by other developers or researchers in the offshore space. The efficiency-oriented outcome of adopting this method can reduce larger systematic problems caused by a lack of industry coordination practices in reporting to various engineering and regulatory bodies. They also isolate key features and processes that happen very early on in the process and maximize efficiency by gathering data needed many months to years later in the process. Another additive benefit was the approach of gathering data in the least intrusive and destructive way possible to maximize the knowledge that development and archaeological groups bring to the table when having conversations with consulting parties and government stakeholders. The novelty of this process has expanded synthesis in a way that starts the process early enough that the subject matter experts (SMEs) can develop a robust working ground model while considering multiple components at the same time, rather than teams working in a silo, uninformed of each other's work. The use of this process can grow the project methodology and industry best practice for multiple developers and government entities into the future.
Assessing Small-Strain Shear Modulus Based On In Situ Seismic Measurements in Bay of Campeche Sand
Authors: Taboada Victor Manuel , Cao Shuang Cindy , Cruz roque Diego , Barrera Nabor Procoro 
Published: April 2023

Abstract
A database with in situ measurements of shear wave velocity (VS), cone tip resistance (qc), and basic soil properties of sand has been established from fifteen offshore geotechnical investigations performed in the Bay of Campeche. VS values were obtained from P-S logging. The database was tailored to develop empirical correlations for small-strain shear modulus (Gmax) based on qc (or relative density), void ratio, and effective stress. Three empirical correlations were developed to determine Gmax based on: 1) void ratio, effective vertical stress, and coefficient of lateral earth pressure at rest; 2) effective vertical stress and relative density determined from CPT data; and 3) effective vertical stress and cone tip resistance. To evaluate the accuracy of the correlations, a comparison was made between VS computed from the three empirical correlations and in situ VS measurements at an independent site. The predictions of VS fall in a rather narrow band, 15 % lower and higher than the in situ VS measurement, which supports the conclusion that these equations provide a useful approach to estimating VS or Gmax for use in ground response analyses or offshore wind farm foundation design at sites where time constraints and finite resources prevent the feasibility of making in situ VS measurements.
Quantitative Risk Assessment of CO2 & H2 Offshore Pipelines - Advancing On Modelling Subsea Accidental Releases
Authors: Mercuri Andrea , Blasioli Giuseppe , Mauge Rudy , Busini Valentina , Fehervari Mauro , Aloigi Elvira , Arcangeletti Giorgio , Branduardi Luca 
Published: April 2023

Abstract
The assessment of risks for human health and environment is a crucial step of the design of subsea pipeline systems. Well-recognized standards, such as DNV-RP-F107, recommend carrying out periodic risk assessment throughout the whole life cycle of a subsea pipeline system. The purpose of this paper is to present the upgrade of a lean and proprietary tool to assess the consequences of CO2 and H2 releases from subsea pipelines whenever a Quantitative Risk Assessment (QRA) is required.
To quantify the risk for people and the environment involved in an accidental loss of containment of CO2 or H2 sealines, the physical effects of subsea releases need to be evaluated. The mathematical model described in this paper is based on state-of-the-art integral models developed for subsea releases. It models subsea plumes or subsea gas blowout considering the effects of sea current, sea salinity, sea temperature as well as the effects of impurities in the released stream. The model was validated through a comparison with a detailed Computational Fluid Dynamic (CFD) simulation and case studies available in literature.
At present, the assessment of subsea CO2 and H2 releases, for QRA purposes, is performed either by very simplified and not validated approaches, which can lead to an overestimation of the consequences, or by complex CFD tools which require specific skills, high computational costs, and long duration of analysis often not in compliance with tight project schedules. The results of this paper show a sufficient level of accuracy of the in-house integral model with respect to other well-recognized integral models in the estimation of underwater plume behaviour, bubble zone extension at the sea surface, void fraction, and mean plume speed. Therefore, it can provide a suitable set of input data for simulation of atmospheric dispersion of CO2 and H2. The comparison of the results, carried out by means of a CFD tool on a set of case studies, shows a good agreement of the main predictive parameters.
The model described is a suitable tool for consequences assessment in QRA studies for CO2 and H2 offshore pipeline projects concurring at the Net Zero objective, contributing to understand release impacts on safety and environment.
A Grand Banks Gas Pipeline; Opportunities and Challenges
Authors: Abdi Majid , Paulin Mike , King Tony , Fowlow Chad , Robbins David 
Published: April 2023

AbstractThis paper presents opportunities and challenges associated with a natural gas pipeline from offshore to a proposed LNG facility onshore/nearshore Newfoundland. Pipelines offshore Newfoundland to landfall have been studied for almost four decades but none have been constructed to date. Challenges include design methodology, protection from icebergs and trenching technology to afford that protection.Evaluation of icebergs gouging the seabed and the impact on such a pipeline are presented and evaluated. Potential pipeline routing has been assessed to minimize risk of direct contact from a gouging iceberg keel. Risks to the pipeline may come from direct contact or through subgouge deformation beneath the keel. Risk was evaluated using an iceberg subsea contact model, updated to reflect the current iceberg regime, developed as part of an ongoing project titled "Subsea Ice Interaction Barrier to Energy Development (SIIBED)".The paper also touches on aspects of a gas gathering system and regulatory considerations.
Development Plan Optimization and Uncertainty Study in a Major Deepwater Field in the US Gulf of Mexico
Authors: Rezaveisi Mohsen , Campbell Jennifer L , Wigley Paula L , Foster Tyler M , Peck Doug G 
Published: April 2023

Abstract
This paper describes the development plan optimization and probabilistic uncertainty study using Latin Hypercube Experimental design constrained to production performance in Lower Miocene (LM) reservoirs of the Shenzi Field in deepwater Gulf of Mexico (DW GOM). The purpose of the development plan optimization was to identify, rank, and characterize future development opportunities i.e. infills and injectors in the LM reservoirs to arrest the field decline. The study uses history matched dynamic simulation models.
Uncertainty parameters were identified and ranked through single variate sensitivity analysis with consideration of impact on history match quality. Top ranking uncertainty parameters were then characterized using probability distribution functions. Latin Hypercube Experimental design was then used to generate vectors of uncertainty parameters to be used in running many simulation cases. The simulation results from experimental design were filtered based on history match quality to 200 cases, a more manageable number for visualization and further simulation study. The 200 cases were then used to identify development opportunities and characterize their resource range.
Identification and proper characterization of uncertainty parameters were essential to attain reliable estimates of resource range and opportunity ranking, and for gaining insights into the downside risks of each development opportunity. This is especially the case for scenario-based uncertainty parameters with discrete distributions e.g., geologic scenarios. Application of simple data analytics techniques and powerful visualization tools was important in thoroughly analyzing the results of many simulation cases, understanding key uncertainty parameters and interdependencies for each development opportunity.
For most opportunities the incremental Estimated Ultimate Recoveries (EURs) calculated from the reference case model were optimistic compared to the P50 incremental EUR from the uncertainty study, highlighting the risks involved in making development decisions based on only reference case model results. A two well development concept with the minimum downside resource risk was identified. This was the case because the incremental EUR from the two wells was strongly correlated to a key uncertainty parameter but with opposite signs, thus reducing the downside resource risk.
Development plan optimization and ranking of development opportunities were performed using hundreds of history-matched simulation cases to properly capture the subsurface uncertainties in the estimated resource range for each opportunity. This methodology resulted in identifying development concepts with minimum low case resource risk and largest mid case resource.
Evaluation of Loop Current/Loop Current Eddy Fronts to Guide Offshore Oil & Gas Operations
Authors: Storie Jill , Ramos Rafael , Leber Michael , Nowak Heather , Young Michelle , Magnell Bruce 
Published: April 2023

Abstract
The unique circulation characteristics of the Gulf of Mexico (GOM) pose a significant threat to the safety of offshore oil and gas operations pertaining to installation of new production systems, drilling, and maintenance of existing offshore infrastructure. Operators in the area rely on realistic estimates of the location of the sharp fronts (regions of high horizontal shear) characteristic of the warm-core Loop Current (LC) and Loop Current Eddies (LCEs) and smaller cold core cyclonic eddies (CEs) to estimate working windows. However, locating these features is not a trivial undertaking because it requires review and analysis of multiple observational and model data sources. In this paper, we describe the frontal analysis (FA) methodology used to define such features. This technique has been accepted by industry as the best representation of the continuous front that delineates the most distinct current gradients defining the sharp outside edge of the LC/LCEs.
Definition of LC/LCE features is accomplished by defining the position and extent of the associated front, defined as the 1.5 knot current threshold. This involves performing an analysis of satellite imagery (snapshots and composites) and satellite-derived products (altimetry and geostrophic velocities), in-situ measurements (i.e., public and proprietary drifting buoys, rig-mounted ADCPs, vessel-mounted ADCP transects, etc.), and previous feature location/progression analyses, all weighted appropriately. The resulting front is then used to map these features and provide actionable information regarding their surface current velocities, migration speed and direction, angular rotation, and axis orientation.
Systematic analysis of the behavior of the LC system since 1984 has resulted in a unique oceanographic dataset comprising the location and evolution of LCEs. By incorporating frequent deployment of aircraft-deployed, satellite-tracked, drogued drifting buoys and the analysis of their track data, the FA provides the most accurate and extensive near-real-time information available regarding the location and intensity of currents affecting offshore operations. WHG’s FA product is commonly accepted throughout the industry and within the scientific community as the closest to ground truth for the placement of the major oceanographic features in the region. Understanding the details of this methodology will provide the basis for comparison of observations with new numerical modeling efforts (under development as part of the NASEM UGOS program) to effectively assess the accuracy of nowcast results and will eventually lead to better model forecasts for the benefit of various stakeholders.
All-Optical Subsea Sensing and Communications
Authors: Wilson Glenn , Uribe Mauricio , Moe Sigurd , Ellmauthaler Andreas , Suh Kwang , Jaaskelainen Mikko , Bush Jeff , Dupree James 
Published: April 2023

Abstract
Subsea control systems utilize electric and/or optical communication channels within subsea optical distribution systems for redundant, duplex telemetry between topside facilities and subsea control systems. Downhole fiber optic sensing (DFOS) systems utilize the same subsea optical distribution systems for establishing transmission paths between the same topside facilities and downhole sensing fibers. To date, subsea fiber optic control and sensing systems have been operated on independent subsea optical distribution systems. This redundancy introduces complexity and cost into the overall subsea optical distribution system required for subsea developments. We describe the systems that combine fiber optic communications for subsea control systems and downhole fiber optic sensing systems into the same subsea optical distribution system. This enables simultaneous operation of communications between the topsides and subsea control module, and the topside interrogation of multiple downhole fiber optic sensors while preserving dry-tree equivalent sensing performance.
DESIGN AND MANUFACTURING OF A TWO-STAGE REDUCTION GEARBOX WITH 3D PRINTERS
Authors: KARAKUŞ Serpil 
Published: April 2023

ABSTRACT
3D printers, which have been used in recent years, enable the conversion of a digital model into a physical 3D object by placing the filament material layer by layer and can help a wide variety of industries. Digital models can be created using software such as Solidworks and Catia or data created by a 3D scanner.
This study designed all parts of a two-stage reducer gearbox consisting of spur and helical gear pairs. The torques are calculated according to the input power. Shafts that can transmit torques are designed.
On the other hand, gear wheels were calculated according to the total reduction ratio and were designed to transmit torques. CAD software (Solidworks) designed the gearbox parts, assembled them, and simulated them. Thus a digital model has been created. CAD models were transferred to the 3D printer. The slicing was done precisely using Cura software,
On the other hand, the Marlin software reads the G codes created with Cura software sent from the computer. PLA (Polylactic Acid) was used as the filament material. The manufactured gearbox worked adequately, and the number of revolutions was reduced to 40 rpm from 800 rpm.

Keywords: Gearbox, Gears, 3D printing, CAD, Additive manufacturing
La vivencialidad del mundo globalizado como objeto de la pedagogía geográfica en su práctica escolar cotidiana
Authors: Santiago Rivera José Armando 
Published: April 2023

El propósito es explicar la vivencialidad del mundo globalizado como objeto de la pedagogía geográfica en su práctica escolar cotidiana. Se trata de una opción cuestionadora de la vigencia de la transmisividad conceptual, con los fundamentos de los cambios paradigmáticos y epistemológicos que promueven la elaboración del conocimiento y asumen la explicación de la realidad geográfica, con los testimonios de la subjetividad de los actores de los objetos de estudio. Eso determinó realizar una investigación documental para reflexionar sobre las condiciones del momento histórico, la complejidad de la realidad geográfica cotidiana y la pedagógica geográfica en el tratamiento de la vivencialidad comunitaria. Al concluir se promueve el análisis de la cotidianidad de los temas y problemáticas geográficas, por incentivar el proceso formativo en valores y favorecer en los ciudadanos la conciencia crítica. Además aporta el apremio de humanizar el tratamiento investigativo del territorio de la localidad habitada.
Palabras clave
Vivencialidad, Mundo Globalizado, Pedagogía Geográfica, Práctica Escolar.

A experiência do mundo globalizado como objeto da educação geográfica em seu cotidiano escolar
Resumo
O objetivo é explicar a experiencialidade do mundo globalizado como objeto da educação geográfica em sua prática escolar cotidiana. É uma opção que questiona a validade da transmissividade conceitual, com fundamento nas mudanças paradigmáticas e epistemológicas que promovem a elaboração do conhecimento e assumem a explicação da realidade geográfica, com os testemunhos da subjetividade dos atores dos objetos de estudo. Isso determinou realizar uma investigação documental para refletir sobre as condições do momento histórico, a complexidade da realidade geográfica cotidiana e a pedagogia geográfica no tratamento da experiencialidade comunitária. No final, promove-se a análise do cotidiano das questões e problemas geográficos, incentivando o processo formativo em valores e favorecendo a consciência crítica nos cidadãos. Contribui também a urgência em humanizar o tratamento investigativo do território da localidade habitada.
Palavras-chave
Experiencialidade, Mundo Globalizado, Pedagogia Geográfica, Prática Escolar.
SUJEITO: UMA INVESTIDA DIDÁTICA
Authors: Silva Marcelo Medeiros da , Agra Marcos Wagner da Costa 
Published: April 2023

RESUMO: O presente texto objetiva revisitar a noção de sujeito oracional a partir da perspectiva da Gramática Tradicional (GT), evidenciando as suas contradições e caráter pouco operatório. Além disso, como contraponto às definições encontradas em nossa tradição gramatical, ensejamos apresentar uma abordagem mais operatória e operacional que permita a identificação do sujeito ao nível da oração e que poderá auxiliar o ensino desse tópico gramatical, especialmente, na Educação Básica.
Palavras-chave: Sujeito. Gramática Tradicional. Ensino de Gramática.
ESTÁGIO SUPERVISIONADO REMOTO DE LÍNGUA ESPANHOLA EM TEMPOS DE PANDEMIA:
Authors: Lima Luciane Pereira de , Silva Rickison Cristiano de Araújo , Souza Fábio Marques de 
Published: April 2023

Diante do cenário pandêmico da COVID-19, o processo de ensino-aprendizagem passou por (re)adaptações, e os estágios supervisionados que anteriormente eram realizados na modalidade presencial foram substituídos por aulas remotas, mediadas com o apoio das TDICs. Neste contexto, os professores em formação inicial do curso de Letras – Espanhol, da Universidade Estadual da Paraíba, realizaram seus estágios através do Ensino Remoto de Emergência (ERE), utilizando as mais variadas ferramentas digitais, incluindo plataformas educacionais e redes sociais utilizadas na vida cotidiana. Nesta perspectiva, este estudo teve como objetivo refletir sobre a experiência dos professores de espanhol em formação inicial ao longo dos estágios supervisionados remotos durante a pandemia, evidenciamos as contribuições para sua formação e as dificuldades experimentadas durante este período. Assim, verificamos que os estágios supervisionados durante a pandemia, permitiram aos futuros professores conhecer um novo contexto de prática docente, refletindo sobre as dificuldades pedagógicas e tecnológicas vividas por eles durante o ERE. Desse modo, se destacou a necessidade de estar sempre buscando uma formação para seu uso de forma reflexiva e crítica.
Абу Наср Форобийнинг давлатнинг хайр-саховати хақидаги қарашлари
Authors: Юсубов Жалолиддин 
Published: April 2023

Мазкур мақолада Абу Наср Форобийнинг хайр-саховат ҳақидаги фикрлари фалсафий таҳлил қилинган. Ал-Форобий икки давр, икки минтақа, ўрта асрлар ва янги давр, Шарқ ва Ғарб маданиятларининг ўзига хос хусусиятлари ва таълимотларини чуқур ўрганиб, инсоният цивилизацияси келажагини чуқур англай олган мутафаккир эди. У инсониятга ўзи улғайган муҳитдан, саёҳат қилган жойлардан тўплаган билимларини, дин таълимотларидан ўрганган илмларини тақдим этди.