bluuebunny/crossref_metadata_2025_split huggingface dataset:
Numerical Analysis of Out-of-Plane Crushing of Reinforced Honeycomb Core and Effect of Cell Parameters on its Properties
Authors: Mohan Sumit , Gautam Anupam , dabral Atulesh , Bahuguna Anurag , Jain Ankit , Ram S.C. 
Published: January 2024

Abstract
The non-linear finite element code LS-DYNA has been used in this work to conduct the crushing examination of both normal and reinforced honeycomb cores. The honeycomb-like cores are provided with out-of-plane quasi-static conditions of stress via an explicit dynamic approach. We have parametrically investigated the effects of cell properties on crushed behaviour as well as the absorption of energy, including the size of the cell, wall thickness, height, along with cell wall tilted position. Regular honeycomb (R0-HC), reinforced every other ribbon (R1-HC), and reinforced every ribbon (R2-HC) are three different varieties of honeycomb. The findings of the numerical analysis of these three types of honeycomb are compared to understand how reinforcing affects energy absorption and crushing parameters. The sheet material AA3003-H18 was chosen to make the honeycomb core. In comparison to ordinary honeycombs, the reinforced honeycombs demonstrated superior crushing behavior and energy absorption. In comparison to the others, reinforced every ribbon (R2-HC) type honeycombs exhibited the greatest values for crushing characteristics and energy absorption. The crushing characteristics and energy absorption of reinforced every other ribbon (R1-HC) honeycombs were higher than those of ordinary honeycombs (R0-HCThe crushing force, average plateau force, and energy absorption values decrease as the cell size, height, and wall angle are increased, however, all these crushing characteristics increase as the cell wall thickness is increased.
Effect of Anti-Reflective and Dust Spreading on Performance of Solar PV Panels
Authors: Dabral Atulesh , Kumar Rahul , Ram S.C. , Morey Amit , Mohan Sumit , Sharma Devesh 
Published: January 2024

Abstract
This study intends to better solar photovoltaic (PV) panel performance by employing anti-reflective coating and explore how dust affects solar panel effectiveness. Three equivalent solar PV panels were compared, having one of them being uncoated, the next one having a TiO2 nanomaterial coating, and the very last one having a SiO2 nanomaterial coating. PV panel surfaces are coated with superhydrophilicity TiO2 as well as superhydrophobic SiO2 nanomaterials using a cloth made of microfibers. With the aid of a photovoltaic (PV) analyser, the power output of each and every PV panel has been monitored during the month of November 2021. After one month of being exposed to the environment, the percentage improvement in efficiency for TiO2-coated panels was 7.66% and for SiO2 coated panels was 19.73% as compared to uncoated PV panels. Results demonstrate that SiO2 covered PV panels outperform the other two scenarios in terms of efficiency and power output. The frequency of photovoltaic panel washing is reduced by the application of coating. Different amounts of dust are evenly scattered on the surface of the PV panel in order to observe the effect of the dust. Additionally, as the amount of dust increases, the effectiveness of PV panels declines considerably. When 20g of dust is dispersed across the surface of a PV panel, its efficiency falls by 34.6 percent.
Optimal Energy Sharing in Hybrid Microgrid System Using Battery Energy Storage
Authors: Rawat Arun Kumar , Chandra Subhash , Deolia Vinay Kumar 
Published: January 2024

Abstract
A smart micro grid technology application facilitates the integration of renewable energy and increase its penetration. A smart grid is an electrical network which is built on advanced technology that uses dual-way digital communication to transmit electricity to buyers. The smart grid was created with the aim of using smart meters to overcome the problems faced by traditional grids. Microgrids allow for the integration of multiple renewable energy sources at different levels, improving the power system’s reliability, sustainability and efficiency. Remote places, spacecraft and maritime applications all use DC microgrids. Solar photovoltaic (PV) systems, wind energy, fuel cells, battery management systems, supercapacitors, and loads make up a DC microgrid. In this paper, some of the interesting approaches for optimal energy sharing in the hybrid microgrid are discussed.
Geochemistry of Cold Springs in Geothermal Exploration Stage – Case Study of Candi Umbul Telomoyo, Central Java
Authors: Abdillah Yuniar Z. , Sidik Ridwan P. , Putra Zefanya M.D.C.W. , Wibowo Djoko A. , Darmawan Arif , Mulyana Reza S. , Kristianto Budi A. 
Published: January 2024

Abstract
Cold springs in geothermal fields are often overlooked during the exploration stage. The best practice of geothermal exploration suggests thermal manifestation as an indicator of a geothermal system in the subsurface. This common practice neglects cold springs as valuable information points related to the system. Thermal-contaminated cold springs can be helpful to indicate the presence of inferred geothermal activity below the surface during the exploration stage. It becomes important where thermal features are absent or limited, as in Candi Umbul Telomoyo. Candi Dukuh, Candi Umbul, and Pakis Dadu thermal springs are located at the periphery of the Telomoyo Volcanic Complex, at relatively low altitude. Those thermal springs are used to construct the existing conceptual models of the geothermal system. In this study, the authors tried to consider the presence of slightly acidic cold springs (pH 5.24-5.61). Located within the Suropati Depression in the North, and the flank of Mt. Telomoyo in the South, both Keningar and Sendang Ari Wulan cold springs are located at higher altitude with higher TDS and are enriched in Cl and SO4 compared to the others. These cold springs are associated with the argillic alteration zone and observed to have iron oxide deposition at the discharge area. Sendang Ari Wulan fluid is plotted at the same zone as the thermal springs on Na-Cl•SO4 facies of the Piper diagram, while Keningar fluid is plotted on HCO3-Ca•Mg facies are similar to other cold springs. Although Sendang Ari Wulan shows a better correlation to the thermal springs, based on Piper diagram, both Keningar and Sendang Ari Wulan cold springs are classified as HCO3-SO4 and SO4-HCO3-Cl. These observations show the possibility of contamination of the geothermal system occurring below the Keningar and Sendang Ari Wulan cold springs, which is higher than the thermal springs. This interpretation is supported by the anomaly of high Hg and CO2 surrounding the acidic Keningar and Sendang Ari Wulan cold springs, three temperature gradient wells that prove the presence of three times higher-than-normal geothermal gradient. The research concludes that cold springs data are indeed useful in aiding the interpretation, especially during the exploration stage.
Ground displacement analysis in the Sarulla geothermal field using Persistent Scatterer Interferometric Synthetic Aperture Radar (PS-InSAR) method
Authors: Maulana Yahya , Saepuloh Asep , Fattah Erlangga Ibrahim 
Published: January 2024

Abstract
The Sarulla geothermal field is aggressively developed in Indonesia, reaching 330 MW in two consecutive years. Furthermore, the field is situated along the active Great Sumatra Fault. This condition has the potential to induce surface deformation phenomena attributed to exploitation activities, tectonic activities, or a combination of both. The Persistent Scatterer-Interferometric Synthetic Aperture Radar (PS-InSAR) method is a multi-temporal Synthetic Aperture Radar (SAR) image processing technique employed to detect surface deformations with millimeter-level accuracy. PS-InSAR has been applied in this paper over the Sarulla geothermal field, which comprises two exploited prospects (Silangkitang and Namora-I-Langit) and two unexploited prospects (Donotasik and Sibualbuali). The objective of this paper is to analyze the characteristics of ground displacement over the exploited and unexploited geothermal areas. Multi-temporal images of SENTINEL-1A with ascending and descending orbital modes from 2017 to 2021 were processed using PS-InSAR method. A series of interferograms from the selected primary image were paired with secondary images using SNAP program and Python-based program snap2stamps. The generated interferograms were used as input for the StaMPS program to obtain the persistent scatterers as the best coherent points. Ground displacement towards the satellite line of sight was observed within those two exploited geothermal areas adjacent to the production and injection zones. The descending images resulted in more significant PS points than ascending images. The exploited geothermal area shows a clustered pattern of PS points with a significant rate of ground displacement, whereas the unexploited area suggests a wide dispersion of PS points with a slight amount of displacement rate. Additionally, the detected ground displacement that occurred adjacent to the Great Sumatran Fault may indicate the active movement of the fault.
Technical and Business Evaluation of Geothermal Dryhouse for Coffee in Kamojang, West Java, Indonesia
Authors: Farouq Cecep U. , Brilian Vincentius A. , Fathurrodin Ahmad N. , Pradipta Muhammad I. , Dewi Primatika P. , Rahmadi Adi , Fauzan Muhammad N. 
Published: January 2024

Abstract
The coffee farmers in Kamojang still currently rely on conventional drying method using direct sun radiation. However, the cold ambient temperature and fluctuative weather in Kamojang brings challenges to this method. Therefore, PT PGE Area Kamojang built a trial geothermal dryhouse with a heating pipe connected to a blowdown on the existing geothermal steam pipeline as the heat source. In this study, the existing geothermal dryhouse is evaluated from the technical and business aspects. The technical evaluation studies the thermal performance of the heating pipe to calculate the dryhouse heating load, the required heating pipe length, the effect of heating pipe operation on the dryhouse temperature, and the suggested technical improvements. Meanwhile, the business evaluation studies qualitatively about the relationship between the potential farmer profit enhancement and the possible coffee-drying duration reduction from previously 2-3 weeks to 1-2 weeks by substituting conventional drying method with the use of geothermal dryhouse. Aside from that, it was expected to retain the coffee’s pleasant flavor and not have any sulfur odor problems. The technical evaluation is performed using analytical and experimental methods. The analytical results show that the required heating load is 10.94 kW and the heat transfer rate per unit length of the heating pipe is 0.2618 kW/m. Hence, the required heating pipe length is 41.79 m. The Subsequently, the heating pipe was tested operational three times on 16 – 18 January, 27 April – 4 May, and 31 May – 5 June 2023. On Trial 1, the heating pipe performance was not optimal due to condensate built-up inside the heating pipe. Therefore, steam traps were installed to reduce the condensate built-up. On Trial 2, the heating pipe performance was better, which was indicated by the higher and stable dryhouse temperature during the night. Hence on Trial 3, the technical improvement involving rearrangement of steam trap and bypass valve considerably improved the heating pipe performance. It reaches the design temperature and being maintained above 40°C for a maximum of 50°C longer than it did previously. The business evaluation expects a significant profit enhancement for the farmers if the drying duration could be cut into 1-2 weeks using the geothermal dryhouse.
Surgical management of abdominal aortic graft infection: network meta-analysis
Authors: Shu Hongxin , Wang Xuhui , Wang Menghui , Ding Yongqi , Cheng Hui , Wang Ruihua , Huang Qun , Zhang Rong 
Published: January 2024

Abstract

Background
A paucity of evidence exists regarding the optimal management for abdominal aortic graft infection. The aim of this paper was to assess short- and long-term outcomes following different surgical options in aortic graft infection patients.

Methods
Medline, Embase and the Cochrane Library were searched from inception to February 2023. Network meta-analysis was performed using a frequentist method. Patients were divided into four treatment groups: complete graft removal with in situ repair, complete graft removal with extra-anatomic repair, partial graft removal with in situ repair and partial graft removal with extra-anatomic repair. The mortality rate at 30-days and 1-year was the primary outcome. Secondary outcomes were longer-term mortality rate, primary patency and reinfections. For included RCTs, the Cochrane risk-of-bias tool was utilized to assess the risk of bias. The methodological quality of cohort studies was evaluated using the Newcastle–Ottawa scale.

Results
Among 4559 retrieved studies, 22 studies with 1118 patients (11 multi-arm and 11 single-arm studies) were included. Patients received complete graft removal with in situ repair (N = 852), partial graft removal with in situ repair (N = 36), complete graft removal with extra-anatomic repair (N = 228) and partial graft removal with extra-anatomic repair (N = 2). Both network meta-analysis results and pooled results of multi- and single-arm cohorts indicated that partial graft removal with in situ repair has the lowest 30-day and 1-year mortality rates (0% and 6.1% respectively), followed by complete graft removal with in situ repair (11.9% and 23.8% respectively) and complete graft removal with extra-anatomic repair (16.6% and 41.4% respectively). In addition, complete graft removal with in situ repair had a lower 3-year (complete graft removal with in situ repair versus complete graft removal with extra-anatomic repair: 32.1% versus 90%) and 5-year (complete graft removal with in situ repair versus complete graft removal with extra-anatomic repair: 45.6% versus 67.9%) mortality rate when compared with complete graft removal with extra-anatomic repair. Patients in the complete graft removal with in situ repair group had the lowest reinfections (8%), followed by partial graft removal with in situ repair (9.3%) and complete graft removal with extra-anatomic repair (22.4%).

Conclusion
Partial graft removal with in situ repair was associated with lower 30-day and 1-year mortality rates when compared with complete graft removal with in situ repair and complete graft removal with extra-anatomic repair. Partial graft removal with in situ repair might be a feasible treatment for specific aortic graft infection patients.
Synergy in the copolymerization of non-ionic and anionic biphenyl tetracarboxamides: mix and match
Authors: Iseki Tomokazu , Schoenmakers Sandra M C , Morgese Giulia , Meijer E W 
Published: January 2024

Abstract
Multi-component supramolecular polymerization, which requires control over hydrophobic effects, hydrogen bonding, coordination interactions, and π–π stacking of the monomers, enables the preparation of functional materials at the molecular level. Here, we report the synthesis of two monomers of biphenyl-3,3',5,5'-tetracarboxamide derivatives with tetraethylene glycol and tetraethylene glycol sulfate at the tails. By themselves, they are poor monomers for aqueous supramolecular homopolymerization, but the presence of tetrahydrofuran as cosolvent or sodium chloride as additive leads to the self-assembly of the monomers. In the copolymerization experiments, we show that the coexistence of these non-ionic and anionic biphenyl tetracarboxamide-based monomers leads to synergetic supramolecular copolymerization.
Stress cardiomyopathy in the paediatric population: a case series
Authors: Annino Nadine , Cantais Aymeric , Javouhey Etienne , Baudin Florent 
Published: January 2024

Abstract

Background
Stress cardiomyopathy (Takotsubo syndrome) defined as Takotsubo syndrome is defined as a reversible acute myocardial syndrome with myocardial injury with regional wall motion abnormality and no coronary explanations in the context of stress. The pathophysiology remains partially unknown, and these cases are probably underestimated in paediatrics. We report six cases of Takotsubo probably secondary to neurological damage.

Case summary
Six patients (10, 13, 16, 10, and 9 years and 5 months) presented with haemodynamic lability with echocardiography data leading to suspicion of Takotsubo syndrome. These cases were secondary to neurological involvement (cerebral haemorrhage, intraventricular haemorrhage, brain damage due to bifrontal oedema, posterior fossa tumour, pneumococcal meningitis, high-grade glioma). All patients were rapidly started on amine. Reversibility of the acute myocardial syndrome was complete in all but one child, who rapidly progressed to encephalic death.

Discussion
Neurological distress has been suggested as a potential cause of Takotsubo syndrome. The pathophysiology is possibly related to excessive stimulation of the sympathetic system. This syndrome should probably be considered in the setting of left heart failure with neurological distress so as not to delay the use of amines especially since in the paediatric population the probability of a coronary origin is low.
Case report of pregnancy complicated by severe pulmonary hypertension from mitral stenosis and placenta accreta spectrum disorder: management of two life-threatening conditions
Authors: Batra Jaya , Mourad Mirella , Collado Fady Khoury , Takeda Koji , Greenwald Andrew , Ring Laurence , Chen Xuxin , Haythe Jennifer 
Published: January 2024

Abstract

Background
Antenatal cardiovascular disease is a major cause of maternal morbidity and mortality. Severe rheumatic mitral stenosis is especially poorly tolerated during pregnancy.

Case Summary
We present a young woman with severe pulmonary hypertension secondary to rheumatic mitral stenosis. She presented at 25 weeks 4 days gestation for evaluation of a pregnancy complicated by placenta accreta spectrum disorder. Invasive hemodynamic testing was carried out to delineate her hemodynamics, and a multidisciplinary cardio-obstetrics team collaborated closely with the patient and her partner to create a management plan. Ultimately, the patient was initiated on veno-arterial extracorporeal membrane oxygenation and underwent caesarean section delivery followed by hysterectomy and subsequent valve replacement surgery.

Discussion
This case describes the treatment options considered to balance the risk of decompensation in the setting of severe pulmonary hypertension with hemorrhage associated with placenta accreta spectrum disorder. It highlights the importance of a multidisciplinary, team-based approach to the management of high-risk cardiac conditions throughout pregnancy.
Comparing the effects of ground cultivation and protection against browsing upon the natural regeneration of Scots pine and birch in a Caledonian pinewood
Authors: Mason W L , Rao S , Agnew J , Stokes V , Painting A , Clarke T-K , Edwards C 
Published: January 2024

Abstract
The Caledonian pinewoods of northern Scotland represent the remnants of once extensive forests found at the western edge of the natural range of Scots pine (Pinus sylvestris L.). The surviving pinewoods are of international significance and are of high conservation and cultural value. However, for many decades, there has been concern about their long-term future because of a lack of regenerating seedlings and young trees. This problem is thought to be driven by high deer populations resulting in intensive browsing and severe damage to young trees, as well as a lack of favourable micro-sites for seedling germination. An experiment was established on the Mar Lodge estate in 2007–08 adjacent to native pinewood stands to test the effects of protection and site cultivation upon seedling numbers and growth. The experiment was located within a regeneration zone where intensive deer control had reduced numbers to &lt;5 animals km−2. Ten years after initiation, occurrence and numbers of both Scots pine and birch seedlings were substantially increased in cultivated treatments compared with uncultivated controls. There were no effects of protection upon seedling numbers. Protection improved height growth of Scots pine, but not of birch. Cultivation had no effect upon the growth of pine seedlings but did influence the height of birch seedlings due to the rapid growth of some pre-existing seedlings in the uncultivated control. Vegetation cover had increased from ~60%to at least 80% cover 6 years after cultivation. The results suggest that site cultivation may be desirable to boost seedling germination within a Caledonian pinewood, but sustained measures to control browsing pressure are a prerequisite for satisfactory establishment of these seedlings.
El rol de la Suprema Corte de Justicia ante la judicialización de la salud en Uruguay. Aportes para la descripción de la cultura jurídica uruguayaThe Role of the Supreme Court of Justice in the judicialization of healthcare in Uruguay. Contributions to the description of Uruguayan legal culture
Authors: Antía Florencia , Giudice Graña Lucía , Vairo Daniela 
Published: January 2024

Abstract
In the last 15 years, Uruguay has witnessed a process of judicialization of health care, carried out through litigation by hundreds of plaintiffs demanding access to high-cost medicines (HCMs) and challenging the constitutionality of laws regulating them. The case of Uruguay is interesting and informative because judicialization is occurring in a country with a comparatively robust health system and a traditionally deferential Supreme Court of Justice (SCJ). The study contributes to the literature on legal culture by examining a largely unexplored case, based on an analysis of the role played by the SCJ in reviewing the constitutionality of laws regulating access to HCMs. The systematic study of the Court’s conceptions reveals the existence of three stages in terms of the (un)constitutionality of the challenged regulation and the nature of the arguments invoked. These shifts coincide with the frequent changes in the composition of the Court and suggest the coexistence of different legal cultures.