bluuebunny/crossref_metadata_2025_split huggingface dataset:
Thin liquid films on a rotary bell atomizer in surface-following coordinates
Authors: Doerre Mark , Akafuah Nelson K. 
Published: January 2022

AbstractThis article analyzes a published formulation of the Navier–Stokes equations cast into surface-following coordinates and provides some additional mathematical background to follow the article. Ubiquitous in the paint shops of automotive plants around the world, a high-speed rotary bell is succinctly described as a rapidly spinning concave axisymmetric surface with liquid paint supplied from a port coinciding with the center of rotation. The spinning surface transfers momentum to the paint film causing it to flow outward. Upon reaching the bell periphery, it is flung off, subsequently forming an atomized spray transferred to an automotive body through advection and electrostatics. Common analytical frameworks of rotating films were spherical or cylindrical coordinate systems where the wetted surface profile of the bell was constrained to follow a coordinate axis. This led to solutions for films modeled with conical, disk-like, or partial hemispherical profiles. An alternative was a more general case using a surface-following orthogonal curvilinear coordinate system along with its derived vector operators. In the unique case of a thin film, these results validated a simpler pattern found in common coordinate systems.
Sodium-Glukose-Transporter 2(SGLT2)-Hemmer bei Herzinsuffizienz
Authors: Bauersachs Johann , Böhm Michael 
Published: January 2022

ZusammenfassungHintergrundDie European Society of Cardiology hat 2021 neue Leitlinien zur Behandlung der Herzinsuffizienz vorgelegt, die den Einsatz von Sodium-Glukose-Transporter 2(SGLT2)-Hemmern als Erstlinienbehandlung bei Herzinsuffizienz mit reduzierter Ejektionsfraktion (HFrEF) empfehlen.Ziel der ArbeitEs erfolgt eine Zusammenfassung der den neuen Leitlinien zugrunde liegenden Evidenz.Material und MethodenEine selektive Literaturrecherche wird durchgeführt.Ergebnisse und DiskussionNach positiven Ergebnissen zur Herzinsuffizienz in kardiovaskulären Sicherheitsstudien mit SGLT2-Hemmern wurden für Dapagliflozin und Empagliflozin placebokontrollierte, randomisierte Studien bei Patienten mit HFrEF mit und ohne Diabetes veröffentlicht (DAPA-HF und EMPEROR-Reduced). Der primäre, kombinierte Endpunkt beider Studien bestand aus Krankenhausaufnahmen (oder ungeplanten Vorstellungen, DAPA-HF) wegen Verschlechterung der Herzinsuffizienz und kardiovaskulärer Sterblichkeit. Beide Arzneimittel senkten das absolute Risiko für den kombinierten Endpunkt um ca. 5 %. Dieser Nutzen war unabhängig vom Vorliegen eines Diabetes, von der Nierenfunktion bei Studienbeginn, dem Geschlecht, dem Alter oder einer Adipositas. Eine Metaanalyse zeigt, dass beide Substanzen sich in der Wirksamkeit nicht unterschieden. Beide waren sicher und gut verträglich.SchlussfolgerungNeben Sacubitril/Valsartan, β‑Blockern und Mineralokortikoidrezeptorantagonisten gehören auch SGLT2-Hemmer zur modernen leitlinienempfohlenen Standardbehandlung einer HFrEF.
Performing low-altitude photogrammetric surveys, a comparative analysis of user-grade unmanned aircraft systems
Authors: Mugnai Francesco , Longinotti Pietro , Vezzosi Francesco , Tucci Grazia 
Published: January 2022

AbstractThis paper shows results of comparing performances of four unmanned aircraft systems (UAS) in terms of photogrammetric survey’s quality. This study aims to investigate what is the more suitable UAS for specific applications considering the required scale factor, such as for architectural, environmental, and restoration purposes. A series of photogrammetric surveys were conducted in a hilly area of about 5 ha using Phantom 4 Adv, Mavic 2 Pro, Mavic Air 2, and Mavic Mini 2. These unmanned aircrafts are commercial user–grade systems used mainly by private professionals. Several photogrammetric reconstructions were performed by varying essential parameters, such as flight altitude and cameras of remotely piloted aircraft systems (RPAS), applying structure-from-motion (SfM) algorithms to the images taken from the UAS. The surveys’ quality was analyzed by comparing the ground targets’ coordinates extrapolated from the point clouds to those measured on the field with indirect georeferencing through GNSS technology. Fifty targets were installed and arranged following a reasonably regular mesh. The boundary conditions were maintained the same for each flight mission, flight trajectories, and the ground control point distribution on the ground. For each survey made by each of the four UAS, altimetric and planimetric residuals were reported and compared. Average residuals from Phantom 4 Adv, about 15 mm, almost disappear compared to the other UASs; the discrepancy is one order of magnitude. With a regular grid geometry of ground targets, the Mavic Mini 2 led to an error average of about 5 cm. Remembering that the Mavic Mini 2 is an ultralight drone (does not require a pilot's license), it could significantly reduce cost compared to the other systems.
Valorization of undervalued aluminum-based waterworks sludge waste for the science of “The 5 Rs’ criteria”
Authors: Tony Maha A. 
Published: January 2022

AbstractAlum sludge (AS) is an underrated by-product waste resulted from treating raw water through conventional water treatment plants. Water is attained from various reservoirs such as rivers and aquifers, and it may contain a wide variety of contaminants as drinking water processing systems produce “waste” sludge as a residual material that causes significant environmental issues. Hence, numerous efforts aimed to sustainable reuses of such sludge. This article illustrates the beneficial reuses of the aluminum-based sludge to close the loop between the sludge waste generation and the sustainable environment with providing past, current and updated knowledge with the introduced uses with their advantages and challenges. Alum sludge as a resource not as a “waste” for reuse facilities is considered a value-added alternative for management achieving the legislation requirements and proposing “end-of-waste” concept. 5Rs, including “Reduce, Reprocess, Reuse, Recycle and Recover,” are providing sustainable solution to fulfill present and future aspects for green environment and safe sludge disposal. In this regard, now, it is essential to focus and adopt the 5Rs criteria for the concept of circular economy that replaces the “end-of-life” principal with restoration.
The Influence of Boundary Habitat Continuity on Spillover from a Mediterranean Marine Protected Area
Authors: Pinillos Fernando , Riera Rodrigo 
Published: January 2022

AbstractThe effectiveness of marine protected areas (MPAs) to restore populations of exploited species, both within and outside of their boundaries through net movement of individuals (“spillover”), can potentially be affected by continuity of habitats across the boundaries. Sandy seabeds may reduce movement of reef-associated species across MPA boundaries, thereby increasing the ‘reserve effect’ while decreasing spillover. Underwater visual censuses were undertaken inside the Cerbère-Banyuls Marine Reserve (CBMR) (France) and adjacent non-protected areas to assess the influence of habitat on spillover. Total fish biomass and mean fish size were significantly higher within the MPA, but rapidly declined across the reserve boundary. Nevertheless, there was no indication of a sharper decline in biomass at the northern boundary where a habitat discontinuity was present relative to the southern boundary with continuous habitat. This result may reflect a number of complicating factors that make assessment of spillover potential difficult, and which may also lead to the uncertainty about which situations and how much spillover may contribute to fished populations outside reserves. In particular, the home range area of the key exploited species relative to the scale of the habitat mosaic, and potentially different levels of fishing pressure at each boundary likely contribute to variability. While the CBMR appeared particularly well-suited to investigating this question, resolving these issues and identifying general principles for where and how much spillover occurs will likely be difficult without a series of specially designed MPAs. This highlights a conundrum facing MPA establishment in the face of pressures to be successful for both biodiversity conservation and to offer fisheries benefits—the latter are clearly not ubiquitous, but a shortage of suitable MPAs that can be used as scientific tools for better understanding how and when these benefits may occur is precluded by a general lack of MPAs designed and managed for this purpose. The results of this study do, however, clearly highlight the biodiversity conservation benefits of the CBMR.
Bio- and phytoremediation: plants and microbes to the rescue of heavy metal polluted soils
Authors: Arantza Sánchez-Jiménez , Hiram Medrano-Roldán , Erika Kothe , Chávez-Avilés Mauricio Nahuam , Valiente-Banuet Juan I. , Fierros-Romero Grisel 
Published: January 2022

AbstractBio- and phytoremediation, being encouraging terms implying the use of biological systems for cleansing purposes, have risen a worthy venture toward environmental restoration in discouraging scenarios, such as the augmentation of indestructible heavy metals. Hyperaccumulating plants and heavy metal resistant microbes own mechanisms embedded in their metabolism, proteins, and genes that confer them with “super characteristics” allowing them to assimilate heavy metals in order to amend polluted soils, and when combined in a symbiotic system, these super features could complement each other and be enhanced to overpower the exposure to toxic environments. Though xenobiotic pollution has been an object of concern for decades and physicochemical procedures are commonly carried out to offset this purpose, a “live” remediation is rather chosen and looked upon for promising results. A variety of benefits have been registered from symbiotic relationships, including plants teaming up with microbes to cope down with non-biodegradable elements such as heavy metals; but a carefully maneuvered interaction might signify a greater insight toward the application of bioremediation systems. These manipulations could consist of genetic engineering and/or additional supplementation of molecules and microbes. In the present study, a contemporary connection between plants and microbes involving their controlled management is summarized in a visionary display.
The use of augmented rotor inflow to predict rotorcraft responses in hover and low-speed manoeuvres
Authors: Agarwal Dheeraj , Lu Linghai , Padfield Gareth D. , White Mark D. , Cameron Neil 
Published: January 2022

AbstractThe rotorcraft is a complex dynamical system that demands specialist modelling skills, and a high level of understanding of the aeromechanics arising from the main rotor wake and aerodynamic couplings. One such example is the difficulty predicting off-axis responses, particularly in hover and low-speed flight, associated with induced velocity variation through the rotor disk resulting from the rotor wake distortions. Various approaches have been developed to deal with this phenomenon but usually demand prerequisites of high levels of expertise and profound aerodynamic knowledge. This paper presents a new and practical approach to capturing this wake distortion through an augmented rotor inflow model. The proposed model is coupled with a nonlinear simulation using the FLIGHTLAB environment, and comparisons are made between the simulation results and flight test data from the National Research Council of Canada’s Advanced System Research Aircraft in hover and low speed. Results show good predictability of the proposed nonlinear model structure, demonstrated by its capability to closely match the time responses to multi-step control inputs from flight test. The results reported are part of ongoing research at Liverpool and Cranfield University into rotorcraft simulation fidelity.
Multitarget allocation strategy based on adaptive SA-PSO algorithm
Authors: Liu S. , Liu W. , Huang F. , Yin Y. , Yan B. , Zhang T. 
Published: January 2022

AbstractWeapon target allocation (WTA) is an effective method to solve the battlefield fire optimisation problem, which plays an important role in intelligent automated decision-making. We researched the multitarget allocation problem to maximise the attack effectiveness when multiple interceptors cooperatively attack multiple ground targets. Firstly, an effective and reasonable fitness function is established, based on the situation between the interceptors and targets, by comprehensively considering the relative range, relative angle, speed, capture probability and radiation source matching performance and thoroughly evaluating them based on the advantage of the attack effectiveness. Secondly, the optimisation performance of the particle swarm optimisation (PSO) algorithm is adaptively improved. We propose an adaptive simulated annealing-particle swarm optimisation (SA-PSO) algorithm by introducing the simulated annealing algorithm into the adaptive PSO algorithm. The proposed algorithm can enhance the convergence speed and overcome the disadvantage of the PSO algorithm easily falling into a local extreme point. Finally, a simulation example is performed in a scenario where ten interceptors cooperate to attack eight ground targets; comparative experiments are conducted between the adaptive SA-PSO algorithm and PSO algorithm. The simulation results indicate that the proposed adaptive SA-PSO algorithm demonstrates great performance in convergence speed and global optimisation capabilities, and a maximised attack effectiveness can be guaranteed.
A high neutrophil to lymphocyte ratio is associated with poor nutritional status in chronic kidney disease patients
Authors: Han Qianqian , Lin Shumin , He Fengyi , Zhang Rui , Xie Xuefeng , Qing Fengchu , Huang Rong , Chen Chaogang , Yang Qiongqiong 
Published: January 2022

AbstractWe aimed to investigate the relationship between the neutrophil to lymphocyte ratio (NLR) and nutritional parameters in chronic kidney disease (CKD) patients. In this cross-sectional study, 187 non-dialysis CKD patients were enrolled. Daily dietary energy intake (DEI) and daily dietary protein intake (DPI) were assessed by 3-d dietary records. Protein-energy wasting (PEW) was defined as Subjective Global Assessment (SGA) class B and C. Spearman correlation analysis, logistic regression analysis and receiver operating characteristic (ROC) curve analysis were performed. The median NLR was 2·51 (1·83, 3·83). Patients with CKD stage 5 had the highest NLR level. A total of 19·3 % (n 36) of patients suffered from PEW. The NLR was positively correlated with SGA and serum P, and the NLR was negatively correlated with BMI, waist and hip circumference, triceps skinfold thickness, mid-arm muscle circumference, DPI and Hb. Multivariate logistic regression analysis adjusted for DPI, DEI, serum creatinine, blood urea nitrogen, uric acid and Hb showed that a high NLR was an independent risk factor for PEW (OR = 1·393, 95 % CI 1·078, 1·800, P = 0·011). ROC analysis showed that an NLR ≥ 2·62 had the ability to identify PEW among CKD patients, with a sensitivity of 77·8 %, a specificity of 62·3 % and an AUC of 0·71 (95 % CI 0·63, 0·81, P < 0·001). The NLR was closely associated with nutritional status. NLR may be an indicator of PEW in CKD patients.
The changing microbiology of neck abscesses in children: implications for antibiotic therapy
Authors: Kawar L , Deshpande A , Kubba H 
Published: January 2022

AbstractObjectivesTo provide an update on the microbiology, sensitivity rates and antibiotic prescribing patterns for superficial neck lymph node abscesses at Scotland's largest paediatric tertiary centre. Findings were compared to historical data from our institution.MethodsA retrospective case series was conducted of paediatric patients undergoing incision and drainage of a superficial neck lymph node abscess at the Royal Hospital for Children in Glasgow, from 2018 to 2021.ResultsThirty-nine abscesses were identified. Methicillin-susceptible Staphylococcus aureus was the commonest micro-organism (28 per cent), followed by Streptococcus pyogenes (13 per cent). Eighty-two per cent of patients were administered a drug regimen containing co-amoxiclav. Only three children required a change in their antibiotics.ConclusionThere was a significant change in causative micro-organisms, including a decrease in S aureus and an increase in the Streptococcus anginosus group. Empirical use of co-amoxiclav is recommended. In abscesses showing no clinical improvement, second-line options such as clindamycin, cefotaxime and vancomycin should be considered.
Processing of novel L2 compounds across repeated exposures during reading: A growth curve analysis
Authors: Yi Wei 
Published: January 2022

AbstractUsing eye tracking, this study examined L2 learners’ real-time processing of novel compounds across repeated exposures during reading. Sixty-one L2 speakers of Chinese read 12 stories over two days. Unbeknown to them, 12 novel compounds were embedded, each occurring six times. Growth curve analyses showed that semantic transparency, working memory capacity, and morphological awareness had no impact on fixation durations for the novel compounds. However, participants with a larger L2 vocabulary size processed novel opaque compounds significantly faster than those with a smaller L2 vocabulary size. For both transparent and opaque compounds, first fixation durations did not change across exposures, yet similar curvilinear decreasing patterns were found in gaze duration and total reading time, with the rates of decrease moderated by L2 vocabulary size and working memory capacity, respectively. Taken together, such findings provide converging evidence supporting the incidental nature of vocabulary learning through natural reading.
Levels of communication: The talking horse experiments
Authors: Gethmann Daniel 
Published: January 2022

ArgumentIn the early twentieth century, counting and speaking horses, like the famous Clever Hans or the “Horses of Elberfeld,” became widely debated subjects in experimental psychology. The idea was to determine whether their learning success was only a fraud, or if it might open up a new chapter in “animal psychology” - or even belong to the realm of parapsychology and telepathy. When their tricks were discovered, the teachers of the animals were marked as charlatans. Both the attempts to detect charlatans and the efforts to avoid this accusation during the talking horse experiments proceeded using the method of introducing new levels of communication into the human-animal interaction process in order to substantiate each respective standpoint. This paper argues that the scientific studies and debates on the talking horses are relevant not only from psychological, biological, and semiotic vantage points, but also from the perspective of communications theory, giving rise to the foundational issue of levels of communication.
Charlatan epistemology: As illustrated by a study of wonder-working in the late seventeenth-century Dutch Republic
Authors: Vermeir Koen 
Published: January 2022

ArgumentThis article highlights the epistemic concerns that have permeated the historical discourse around charlatanism. In it, I study the term “charlatan” as a multivalent actor’s category without a stable referent. Instead of defining or identifying “the charlatan,” I analyze how the concept of the charlatan was used to make epistemic interventions about what constituted credible knowledge in two interconnected controversies. Focusing on these controversies allows me to thematize how the concept of “the charlatan” expanded beyond medical contexts and to bring a history of knowledge perspective to the history of medicine.The title of the article, “Charlatan Epistemology,” indicates a historical epistemological approach to charlatanism as well as the existence of a charlatan’s embodied epistemology. On the one hand, I historicize the epistemic characteristics of charlatanism, focusing on virtues as well as vices, knowledge as well as ignorance, by addressing the historical and contextual specificities of two case studies and the larger epistemic concerns at play. On the other hand, I show how references to charlatanism implied the existence of specific embodied knowledges, special skills and techniques to manipulate either natural secrets or the human psyche, and I explore the similarities and differences between charlatan epistemology and artisanal epistemology.
A Bottom-Up Volume Reconstruction Method for Atom Probe Tomography
Authors: Ling Yu-Ting , Cools Siegfried , Bogdanowicz Janusz , Fleischmann Claudia , Beenhouwer Jan De , Sijbers Jan , Vandervorst Wilfried 
Published: January 2022

Abstract
This paper describes a reconstruction method for atom probe tomography based on a bottom-up approach accounting for (i) the final tip morphology (which is frequently induced by inhomogeneous evaporation probabilities across the tip surface due to laser absorption, heat diffusion effects, and inhomogeneous material properties), (ii) the limited (and changing) field of view, and (iii) the detector efficiency. The reconstruction starts from the final tip morphology and reverses the evaporation sequence through the pseudo-deposition of defined small reconstruction volumes, which are then stacked together to create the full three-dimensional (3D) tip. The subdivision in small reconstruction volumes allows the scheme to account for the changing tip shape and field of view as evaporation proceeds. Atoms within the same small reconstruction volume are reconstructed at once by placing atoms back onto their possible lattice sites through a trajectory-matching process involving simulated and experimental hit maps. As the ejected ion trajectories are simulated using detailed electrostatic modeling inside the chamber, no simplifications have been imposed on the shape of the trajectories, projection laws, or tip surface. We demonstrate the superior performance of our approach over the conventional reconstruction method (Bas) for an asymmetrical tip shape.
Finite Element Modeling of Diffusion in Fractured Porous Media by Using Hierarchical Material Properties
Authors: Beskardes G. D. , Weiss C. J. , Kuhlman K. L. , Chang K. W. 
Published: January 2022

AbstractFractured porous media challenge modeling approaches due to high computational costs and excessive mesh refinement imposed by the extreme scale variability of fractures and the heterogeneity of the surrounding porous rock. To overcome such difficulties, we utilize the hierarchical finite element method (Hi‐FEM) that has been developed previously to simulate the electrical potential distribution in complex geologic environments. The method employs the hierarchical basis functions in classical finite element analysis to enable representation of material properties on each dimensional component of a given 3D unstructured finite element, thereby inherently allowing for interactions at the boundary between fracture and a host rock. In this study, we extend its application to transient fluid flow and heat conduction in the Laplace domain. Time‐domain flow solutions are obtained by numerical inverse Laplace transform. We evaluate the accuracy of the method using different flow models and demonstrate its robustness for large‐scale, rock mass models featuring complex fracture networks. Moreover, for the computation of nodal Darcian velocity fields in fractured porous media where the fractures are represented as 2D features, a new approach that employs the Yeh's Galerkin model for both volume and facet elements is proposed. Results show that Hi‐FEM can produce accurate flow solutions for fractured porous media without any need of coupling or transfer mechanism while still being computationally economical and numerically robust, even for large‐scale simulations.