bluuebunny/crossref_metadata_2025_split huggingface dataset:
Differentiating Hodgkin Lymphoma and Sarcoid Reaction in Subsequent FDG-PET/CT: A Case Report and Literature Review
Authors: Rabei Obayda , Al-Rasheed Ula , Alrammahi Mohammed , Al-Ibraheem Akram 
Published: December 2023

AbstractSarcoidosis is frequently associated with various hematological and solid tumors; it can be discovered by chance during tumor evaluations. Sarcoidosis can occur before some cancers, coexist with others, or be diagnosed 1 to 2 years later. Sarcoid reaction affecting hilar and mediastinal lymph nodes can pose a diagnostic challenge in patients with histopathological confirmation of Hodgkin lymphoma who are being evaluated using fluorodeoxyglucose-positron emission tomography computed tomography (FDG-PET/CT) scan because it cannot be easily distinguished from lymphoma infiltration. The presence of an increase or persistence of a prominent activity on a follow-up FDG-PET/CT scan after chemotherapy treatment for lymphoma that is associated with a complete metabolic response in the site of the primarily diagnosed lymphomatous disease is highly suggestive of concurrent sarcoidosis and necessitates careful assessment to avoid unnecessary therapy.
Condrosarcoma de mano: Reporte de Caso Clínico
Authors: Ramírez María Teresa , Molina Gustavo , Di Carlo Cinzia , Von Unger Sebastián , Morgan Gonzalo , Tuhmm Nicolás , Andwandter Philipp 
Published: December 2023

ResumenEl condrosarcoma es un tumor cartilaginoso maligno localizado usualmente en pelvis, columna y huesos largos, encontrándose solo 1,5% en la mano, frecuentemente falanges. Este puede ser primario o secundario, según su origen sea un hueso normal o lesión cartilaginosa preexistente, esta última más frecuente en mano. Se presenta a una paciente de 70 años, pintora y pianista, que consultó por aumento de volumen y dolor de 5 meses de evolución en relación a un tumor de meñique antiguo. Al examen físico destacó aumento de volumen de consistencia pétrea que afectaba base y tercio proximal de falange proximal, sin alteración de movilidad ni neurovascular. Se realizaron estudios radiológicos que evidenciaron una lesión insuflante con adelgazamiento cortical y calcificaciones en partes blandas, complementados con resonancia magnética. Se presentó al Comité de Oncología, realizó estudio de diseminación y excisión amplia cuyo estudio anatomopatológico evidenció condrosarcoma, con márgenes libres. A los 3 meses postoperatorios la paciente retoma la actividad musical, sin evidencia de recidiva ni metástasis a la fecha. Determinar si un tumor condroideo es benigno o maligno es primordial para el pronóstico y tratamiento, siendo fundamental para ello conjugar la clínica, imagenología e histología. Como este tumor no es radio ni quimiosensible, la escisión amplia con márgenes negativos es una opción de tratamiento, buscando preservar la vida por sobre la función y estética. La tasa de recurrencia es variable, alcanzando hasta el 60%, por lo cual, pese al bajo riesgo de malignización, es recomendable seguir tanto clínica como radiológicamente estas lesiones.
Assessing the Impact of Covid-19 in Mozambique in 2020
Authors: Salvucci Vincenzo , Tarp Finn 
Published: December 2023

AbstractTaking advantage of the 2019/2020 Mozambican household budget survey, in the field both before and during the first phases of the Covid-19 pandemic, we assess the impact of Covid-19 on welfare in 2020, aiming to disentangle this impact from the effect of other shocks. Comparing a number of welfare metrics, and applying propensity score matching and inverse probability weighted regression adjustment approaches, we find that consumption levels are significantly lower and poverty rates substantially higher during the first phases of Covid-19 than in the pre-Covid-19 period. Moreover, the impact was greater in urban areas and accordingly in the more urbanised southern region. Non-food expenditures suffered relatively more than food expenditures, likely a coping strategy, while the impact on consumption levels was greater for people working in the secondary and tertiary sectors than for workers in the primary sector, mainly agriculture. Stunting among under-5 children also suffered. Only a limited number of countries have actual, collected in-person, survey data that span across the initial phases of the Covid-19 pandemic. Thus, the present analysis adds value to our understanding of the welfare consequences of Covid-19 in a low-income context, where automatic social safety nets were not in place during the early phases of the pandemic. More specifically, it helps in assessing the results of previous welfare impact simulations, compared to real data. Even though our main findings are broadly in line with existing estimates based on simulations or phone surveys, important differences between the predictions and the actual results emerge. We conclude that it is critically important for Mozambique and its development partners to develop stronger and more targeted policies and tools to respond to temporary shocks.
Assessment of the energy consumption of indoor farming for different climates and lighting system intensity
Authors: Arcasi A , Mastrullo R , Mauro A W , Napoli G , Pantaleo A M , Tariello F 
Published: December 2023

Abstract
Nowadays, due to the energy, water, and arable land crises, as well as the constant global population growth and urbanization, water, energy, and food sources are strongly linked to each other, and a comprehensive analysis including all the influencing factors has to be carried out. In this context, the need to improve the energy performance of traditional cultivation systems, as well as to develop alternative and innovative ones, is causing a shift in interest from greenhouses to indoor farming methods (such as vertical farms) in the agricultural sector. In fact, they allow for completely controlled crop production without the use of chemical pesticides. Moreover, their productivity is independent of external conditions and improved compared to traditional systems. However, their energy consumption is larger than that of greenhouses. To evaluate the techno-economic feasibility of such systems, a comprehensive model of a vertical farm, including air conditioning, lighting systems, and plant evapotranspiration, has been developed to quantify the energy share for the different elements of the system (air conditioning and lighting) and to relate the energy consumption to the kilogram of produced crop, analysing exclusively the growth phase. The analysis is carried out for different cities and considers different scenarios in terms of lighting and electricity costs.
The potential of energy planning at Municipality scale: Sustainable Energy and Climate Action Plans (SECAP) and local Energy Communities to meet the energy demand variability
Authors: Di Paolo Luca , Di Martino Alessandra , Di Battista Davide , Carapellucci Roberto , Cipollone Roberto 
Published: December 2023

Abstract
Energy planning tools play a key role in achieving sustainable development goals and in the energy transition toward a zero-carbon future. Energy security and decentralization are, as well, additional benefits from a rational energy planning applied to a territory. In particular, the relevance of territorial energy planning grows at the local scale, the peculiarities of a territory being a key point. This is especially true for Municipalities, which represent the smallest units with political responsibility. Cities are often the most unsustainable environments, being responsible for 75% of global energy use, 70% of global CO2 emissions, and considering that the percentage of the global population living in cities is expanding from 50% in 2022 to 70% in 2050. In this regard, the European Community has already designed a specific energy planning tool, called SECAPs (Sustainable Energy and Climate Action Plans), an evolution of SEAPs (Sustainable Environmental Action Plans) that allows the quantification of energy flowing throughout the territory to support the local economy. The greenhouse gases emission commitments are, as well, considered and could be fulfilled being the cornerstone of the European deal on climate change. Waiting for a zero Carbon economy, the intention of the cited plans is to propose mitigation and adaptation actions to delay or to react to climate change manifestations. A formidable new planning tool is certainly “Energy Communities”, where cities, public and private companies, citizens, energy producers and consumers (so called prosumers) can share renewable energy in whatever form is locally available, improving energy security and partial independence from the grid. The paper presents, for a small/medium size Italian city located in the Apennine Mountain hinterland some criteria to design energy communities demonstrating how the potential energy generation based on renewable sources can fulfil energy demand when an Energy Community is organized. The starting point is the knowledge of thermal and electricity consumptions available from SEAPs. Hourly load profiles for them were reconstructed and coupled to renewable energy production availability which is a peculiarity of a territory. Thanks to a suitable diversification of energy production, the fulfilment of the energy needs can be achieved with only a residual grid assistance. Consistency is given to the concept of energy resilience.
The role of biomass in energy transition to net zero carbon emissions due to climate change: the Apulia case
Authors: Zagaria Lazzaro , Caramia Giovanni , Amirante Riccardo 
Published: December 2023

Abstract
Biomass is a net zero carbon source of energy. On the way to reduce carbon emissions, although a few part of biomass is already used and energetically valorised, a large untapped potential remains. If high energy production comes from intermittent sources like solar panels and wind turbines, it becomes challenging to balance energy supply and demand. Therefore, the role of biomass is important for two main aspects: the full valorisation of this source of energy itself, and its stabilization role in new renewable energy scenario. The path towards a net zero carbon scenario cannot overlook the following three key factors. The first factor is the realization that energy demand is continuously rising. The second factor is the urgent need for immediate CO2 reduction. The third factor is the importance of maintaining the electric grid stable. Guided by these fundamental principles, this paper aims to analyse the role of full biomass valorisation in stabilizing the energy system and reducing CO2 emissions. As a part of a much wider work, this analysis encompasses the role of biomass in both a more ambitious scenario with a great amount of photovoltaics, as well as the current energy landscape. The methodology used is numerical simulation of the Apulia case through EnergyPLAN software, and the main findings reveal a significant reduction in CO2 emissions while keeping energy systems stable.
Detailed performance analysis of a novel small-scale biomethane liquefaction plant
Authors: Domenico Vincenzo Di , Tamburrano Paolo , Distaso Elia , Sciatti Francesco , Amirante Riccardo 
Published: December 2023

Abstract
In the current global energy scenario, an important role is played by the increasing production of biomethane, which is carbon-neutral when burned. In addition to production processes, it is paramount to increase the construction of liquefaction plants, in order to simplify the transportation and use of biomethane. However, biomethane liquefaction plants have limited diffusion because of the complexity of current biomethane liquefaction technologies, which have been adapted from natural gas liquefaction plants. Therefore, novel biomethane liquefaction plants are needed to assist the increasing demand of biomethane in the global market. In previous papers, an innovative biomethane liquefaction plant was proposed and studied; compared to current liquefaction technologies, the main advantage is given by the use of simplified heat exchangers. In this paper, the plant performance is explored in more detail by changing some operating parameters to study the efficiency of the whole process by means of a parametric analysis. The results confirm a high potential of the proposed plant, in terms of coefficient of performance and compactness of the heat exchangers.
Experimental investigation of chestnut shells gasification
Authors: Puglia M , Giuliani M , Morselli N , Ottani F , Allesina G , Pedrazzi S , Tartarini P 
Published: December 2023

Abstract
Fossil fuels substitution with renewable energy sources is necessary for an effective decarbonization. Biomass can represent a valid alternative to fossil fuels, reducing greenhouse gas emissions. Furthermore, bioenergy generation avoids costs and problems related to biomass disposal. This study presents the energetic valorisation of chestnut shells, a byproduct of the chestnut transformation processes. Through a thermo-conversion system based on gasification, this material was considered not as a waste, but as a resource to be exploited to produce bioenergy and biochar. The fuel gas produced through the gasification process can partially replace the LPG currently used to meet the energy required for the brulage and steam peeling processes. Experimental gasification tests were carried out to evaluate this biomass by means of a laboratory scale micro-gasifier (Imbert downdraft type). Chestnut shells were pelletized with a pelletizer machine to avoid the bridging effect inside the gasifier and increase its energy density. The fuel gas obtained was sampled and analyzed to measure its composition and HHV. In addition, the gasification efficiency was calculated obtaining a value of 70%, a result in line with the ones obtained with higher quality biomasses.
Multi-obective performance analysis of a wind power plant equipped with a PAT system
Authors: Dambrosio Lorenzo 
Published: December 2023

Abstract
In conventional wind power plants, the wind turbine drives an electrical generator equipped with an AC/DC converter for battery charging purposes and with an inverter inverter to supply power to the grid / AC load. This approach exhibits some drawbacks like the energy losses associated to the power electronics and the cost and the waste management of the battery storage systems.
To overcome such drawbacks, this work proposes a new plant scheme, where the battery system has been removed (or strongly reduced) and the storage task is accomplished by a pumping system equipped with a reversible hydraulic machinery which can operate both as centrifugal pump and a hydraulic turbine (called Pump as Turbine). In this scenario, when the wind velocity is quite high, the reversible hydraulic machinery, working as centrifugal pump, will store energy in the form of potential energy pumping fluid to an elevated water reservoir. On the contrary, in low wind conditions, the Pump as Turbine will operate as a hydraulic turbine, helping the wind turbine to overcome the external mechanical load. This solution results in a number of advantages: lower plant costs, longer Pump as Turbine life with lesser maintenance and reduced waste costs.
The present work focuses on a multi-objective performance analysis of the proposed wind system power scheme. Specifically, this multi-objective sensitivity analysis will be addressed to the net potential energy stored by the reversible hydraulic machinery, the extracted wind energy and the torque supplied by the Pump as Turbine in hydraulic turbine mode. Such an analysis will considered as design variables the Pump as Turbine (centrifugal pump mode) specific speed (pump geometry), the gear box transmission ratio between the centrifugal pump and the wind turbine and the pump head. The aim of this analysis is to evaluate the design variables range which could lead to determine the set of the multi-objective wind systems optimal design.
Experimental investigation on the performance of a micro-ORC system for different operating conditions
Authors: Falbo Luigi , Algieri Angelo 
Published: December 2023

Abstract
The micro-ORC systems are widely considered a reliable solution for domestic power production from renewable sources. The investigation of the optimal operating conditions to maximize system efficiency is an interesting challenge. In this study, a preliminary experimental campaign has been carried out on a biomass-fired micro-ORC system. The system is designed for stationary applications for domestic users, with a gear pump, a scroll expander and R245fa as the working fluid. The performance characterization of the micro-ORC under steady-state conditions has been obtained varying the water flow rate in the condenser at constant pump and expander speeds. The temperature of the hot source (thermal oil) is the maximum achievable in each operating condition. The temperature at the expander inlet and the condenser and evaporator pressure strongly influence the system performance. The increase in water flow leads to a decrease in the condenser pressure and a reduction of the superheating degree of the organic fluid. The system reaches the maximum electric power output of approximately 2565 W with a water flow rate of about 20 l/min. The highest electrical efficiency increases as the refrigerant flow rate decreases and reaches the highest value of 8.1% for the minimum investigated water flow rate.
Energetic analysis of a magnetic gearbox for small wind turbine
Authors: Amoresano A. , Rizzo R. , Di Noia L. P. , Roscioli S. 
Published: December 2023

Abstract
In this paper an energetic analysis for the application of a concentric magnetic gearbox (MG) have been carried out. MGs are able to work without contact to minimize acoustic noise and frictions with the advantage of reducing maintenance and increasing the global efficiency of the system. Concentric MGs are useful to a wide range of industrial applications, including renewable energetic systems and electric vehicles. Preliminary studies about this kind of device have been performed by using Finite Element Method (FEM) 3-D and the resulting data have been applied to build a laboratory prototype able to give the first data in terms of power and torque transmitted. Experimental tests have been carried varying the rpm and obtaining the trend of the efficiency, power and torque transmitted. Moreover, the acquired data have been carried out to analyse the energetic and mechanical behaviour of the magnetic transmission.
Performance evaluation of transcritical CO2 desiccant heat pumps for electric vehicles
Authors: Wang H , Song Y , Cao F , Rossi di Schio E , Valdiserri P 
Published: December 2023

Abstract
Transcritical CO2 heat pump systems are eco-friendly and have excellent heating performance, which makes them suitable for electric vehicles. The recirculation mode can save energy but requires a dehumidification function to ensure driving safety. Therefore, this paper proposes a transcritical CO2 desiccant heat pump, which differs from the typical transcritical CO2 heat pump system by incorporating an indoor evaporator and a full-pass throttle valve. The flow area of the full-pass throttle valve can be adjusted to obtain the appropriate dehumidification rate. In addition, this study suggested using the desiccant heat pump coefficient of performance (DHCOP) to evaluate the overall energy efficiency of the heat pump system. We have investigated the dehumidification rate and optimal discharge pressure under different operating conditions. The results show that even under the harsh operating conditions at -10 °C, the HDCOP of the transcritical CO2 desiccant heat pump can still exceed 2.1, and reach 3.12 at a moderate condition of Ta=5 °C. The transcritical CO2 heat pump desiccant system demonstrates significant energy-saving potential.
Monitoring of public buildings via energy-efficient Z-Wave wireless sensors
Authors: Franco Alessandro , Crisostomi Emanuele , Hammoud Matilde 
Published: December 2023

Abstract
Simultaneously managing energy consumption and ensuring a health environment in public shared buildings presents significant challenges. This study explores the use of advanced monitoring techniques and specific Z-Wave sensors to optimize building management systems. The focus is on maintaining air quality, minimizing energy usage, and achieving significant energy savings. Various sensor types are employed, and data collection and processing are performed through a central gateway. The methodology is tested in university buildings, demonstrating the potential for energy savings by dynamically interacting with HVAC systems based on occupancy levels. Effective monitoring and control strategies can contribute to improved energy efficiency and occupant well-being. In specific cases, most notably when the occupancy of rooms is low, energy consumption can be reduced by up to 70%.
Assessment of the Capabilities of a Simplification Algorithm for Building Energy Modelling for the Evaluation of Control Strategies: a Case Study in Bolzano, Italy
Authors: El Hokayem A , Battini F , Pernigotto G , Gasparella A 
Published: December 2023

Abstract
The increase of the energy efficiency of the building stock is a national priority, especially in consideration of the recent energy crisis and of the 2050 decarbonisation goals of the European Union. Public buildings, in particular, are expected to lead the way and give examples of best practices and solutions for energy savings, some of them related to optimized controls of the building systems. In this context, however, many public administrations lack detailed technical competences, time, and resources to define and implement the best energy efficiency measures and controls for public buildings. To address these needs, fast and accurate simplified models for buildings energy simulation appear to be a promising solution. In this context, this research aims at evaluating the applicability and reliability of an approach previously proposed by the authors, i.e., the shoeboxing algorithm, for the study of operation control strategies. The analysis has been conducted on a public kindergarten, in Bolzano, Italy, comparing simplified and detailed building energy models. Results have shown a fairly good level of accuracy of the algorithm and consistency of energy savings, with a remarkably high simulation speedup.
Development of an Energy Community through semi-dynamic simulation of a urban social housing
Authors: Vallati A , Muzi F , Fiorini C V , di Matteo M , Sundararajan M. 
Published: December 2023

Abstract
Energy communities (ECs) are instrumental in driving the transition to renewable energy in urban areas. This study focuses on implementing ECs in Rome’s Tor Bella Monaca district, with a particular focus on linear mass housing. Using the Urban Modeling Interface (UMI) and Simulink, four energy community scenarios were simulated to evaluate their potential outcomes. The scenarios involved integrating photovoltaics and heat pumps into the community’s infrastructure to assess their impact on renewable energy production and CO2 reduction. The results demonstrate that higher electrification within an energy community leads to increased self-consumption of renewable energy and reduced reliance on the grid. Furthermore, the integration of heat pumps enhances energy consumption efficiency. This research highlights the significant potential of energy communities and innovative technologies in managing local renewable energy resources effectively. It provides valuable insights for developing sustainable energy models in urban areas. It emphasizes the importance of carefully evaluating technology sizing, integration, and the inclusion of thermal and electrical storage to maximize self-consumption while minimizing CO2 emissions. The study’s findings offer practical guidance for policymakers, urban planners, and stakeholders involved in sustainable energy management. They underscore the need for a holistic approach that combines technological advancements, community engagement, and thoughtful integration of renewable energy systems. Ultimately, this research contributes to the adoption of energy communities as crucial elements of a resilient and environmentally-friendly future.