bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of the Different Schemas of Regenerative Power-Hydrogen System
Authors: Wang Xinyu , Zhou Linggang , Zhong Lei , Gao Qiang , Lin Ruixiao 
Published: June 2023

Abstract
In the process of rapid development of renewable energy, the hydrogen system will have a strong coupling relationship with the power system through the electrolysis of water and other links. To study the coupling modes of these two systems and the role of different links in the system is of great significance for the future planning and development of the power-hydrogen system. The research applied the regional power-hydrogen system collaborative optimization planning model to a net energy-importing province and obtained the capacity configuration and operation mode optimization results of five regenerative power-hydrogen system schemas. The impacts of hydrogen import, electrolysis of water, and power generation using hydrogen in the system were analyzed by comparing the optimization results of the five system schemas. The research results show that the above three links are all necessary to achieve the lowest total system cost. Among them, appropriate hydrogen import can avoid the rapid increase of hydrogen storage costs after hydrogen production from water electrolysis exceeds a certain amount. The appropriate amount of hydrogen from water electrolysis by utilizing surplus renewable electricity can replace part of hydrogen import at a lower marginal cost. Proper power generation using hydrogen can reduce the cost of power sources and energy storage.
Design and implementation of integrated high-speed wireless EEG/ECoG acquisition system
Authors: Li Ruikai , Zhang Yixing , Fan Guangwei , Li Ziteng , Lou Cunguang , Liu Xiuling 
Published: June 2023

Abstract
With the development and application of Brain-Computer
Interface (BCI), the demand for the portability, transmission
performance, sampling rate, and number of channels of
electroencephalogram (EEG) acquisition devices is increasing. The
high-performance acquisition devices used in current research are
generally large in size which limit its application scenarios, while
portable high-performance acquisition devices have a limited
wireless transmission bandwidth. To tackle these issues, a
high-performance multichannel wireless EEG acquisition system was
designed, the acquisition device is powered independently by a
battery, controls the bioelectric acquisition chip through FPGA
(filed-programmable gate array) to achieve high-speed and stable
processing of EEG data, and transmits it in real-time via Wi-Fi to
the host computer for display and recording. Standard signal source
tests and Electrocorticography (ECoG) acquisition experiments
demonstrate that the system performed well with 64 channels and a
maximum sampling rate of 30 kHz within a distance of
10 meters. This design provides a new solution for neuroscience
research scenarios.
A lionfish-inspired predation strategy in planar structured environments
*
Authors: Thompson Anthony A , Peterson Ashley N , McHenry Matthew J , Paley Derek A 
Published: June 2023

Abstract
This paper investigates a pursuit-evasion game with a single pursuer and evader in a bounded environment, inspired by observations of predation attempts by lionfish (Pterois sp.). The pursuer tracks the evader with a pure pursuit strategy while using an additional bioinspired tactic to trap the evader, i.e. minimize the evader’s escape routes. Specifically, the pursuer employs symmetric appendages inspired by the large pectoral fins of lionfish, but this expansion increases its drag and therefore its work to capture the evader. The evader employs a bioinspired randomly-directed escape strategy to avoid capture and collisions with the boundary. Here we investigate the trade-off between minimizing the work to capture the evader and minimizing the evader’s escape routes. By using the pursuer’s expected work to capture as a cost function, we determine when the pursuer should expand its appendages as a function of the relative distance to the evader and the evader’s proximity to the boundary. Visualizing the pursuer’s expected work to capture everywhere in the bounded domain, yields additional insights about optimal pursuit trajectories and illustrates the role of the boundary in predator-prey interactions.
Central pattern generators evolved for real-time adaptation to rhythmic stimuli
Authors: Szorkovszky Alex , Veenstra Frank , Glette Kyrre 
Published: June 2023

Abstract
For a robot to be both autonomous and collaborative requires the ability to adapt its movement to a variety of external stimuli, whether these come from humans or other robots. Typically, legged robots have oscillation periods explicitly defined as a control parameter, limiting the adaptability of walking gaits. Here we demonstrate a virtual quadruped robot employing a bio-inspired central pattern generator (CPG) that can spontaneously synchronize its movement to a range of rhythmic stimuli. Multi-objective evolutionary algorithms were used to optimize the variation of movement speed and direction as a function of the brain stem drive and the centre of mass control respectively. This was followed by optimization of an additional layer of neurons that filters fluctuating inputs. As a result, a range of CPGs were able to adjust their gait pattern and/or frequency to match the input period. We show how this can be used to facilitate coordinated movement despite differences in morphology, as well as to learn new movement patterns.
Integrated assessment of the net carbon footprint of small hydropower plants
Authors: Gómez-Gener Lluís , Gubau Marina , von Schiller Daniel , Marcé Rafael , Obrador Biel 
Published: June 2023

Abstract
Global assessments evaluating greenhouse gas emissions and climate benefits of hydropower rely on life cycle assessments (LCAs). However, small hydropower plants (i.e. installations with less than 10 MW; SHPs), are largely underrepresented in such schemes, despite their widespread proliferation and well-known ecological concerns. Here we quantified, partitioned, and compared the net carbon (C) footprint of four temperate SHPs with different operation designs over a 100 year time horizon. In contrast with previous hydropower LCAs studies, we followed an integrative net C footprint approach accounting for all potential sources and sinks of C within the life cycle of the studied SHPs, including both biogenic and non-biogenic sources, as well as for the pre- and post-impoundment stages involved in the flooding of the reservoir. We found that the areal and system-level C emissions were mostly driven by the residence time of the impounded water, which in turn was linked to the SHP operation type. The power installed in the SHPs did not have a relevant role on the net C fluxes. Accordingly, SHPs with smaller water storage capacity were almost neutral in terms of the C footprint. In contrast, SHPs with water storage facilities prolonged the water residence time in the reservoir and either acted as a source or sink of C. The long water residence time in these SHPs promoted either emission of biogenic gases from the surface or C storage in the sediments. Our work shows that integrative net C footprint assessments accounting for different operation designs are necessary to improve our understanding of the environmental effects of SHPs.
Eroding resilience of deforestation interventions—evidence from Brazil’s lost decade
Authors: Kuschnig Nikolas , Vashold Lukas , C Soterroni Aline , Obersteiner Michael 
Published: June 2023

Abstract
Brazil once set the example for curtailing deforestation with command and control policies, but, in the last decade, these interventions have gone astray. Environmental research and policy today are largely informed by the earlier successes of deforestation interventions, but not their recent failures. Here, we investigate the resilience of deforestation interventions. We discuss how the recent trend reversal in Brazil came to be, and what its implications for the design of future policies are. We use newly compiled information on environmental fines in an econometric model to show that the enforcement of environmental policy has become ineffective in recent years. Our results add empirical evidence to earlier studies documenting the erosion of the institutions responsible for forest protection, and highlight the considerable deforestation impacts of this erosion. Future efforts for sustainable forest protection should be aimed at strengthening institutions, spreading responsibilities, and redistributing the common value of forests via incentive-based systems.
Changes in the SST-precipitation relationship over the Indo-Pacific warm pool under a warming climate
Authors: Kim Hye-Ryeom , Ha Kyung-Ja , Lau William K-M 
Published: June 2023

Abstract
The Indo-Pacific warm pool (IPWP) is a region known for its strong atmospheric convection, which plays a key role in global climate. However, in recent decades, the IPWP has experienced human-induced warming, and it has been observed to have a non-linear relationship between sea surface temperature (SST) and precipitation. Despite the rising SSTs, the increase in precipitation is limited until a specific SST, which is defined as saturation threshold SST (STT). The STT indicates a distinct transition before and after the STT, highlighting the non-linear response of precipitation to SST. Nevertheless, the impact of warmer climates on the SST-precipitation relationship and STT remains uncertain. To investigate future changes in this relationship, we analyzed a joint distribution of SST and precipitation using the historical data and three different Shared Socioeconomic Pathway (SSP) scenarios (SSP2-4.5, SSP3-7.0, and SSP5-8.5). We examined the near future (2041–2060), and far future (2081–2100). Our findings reveal that the STT increases with the shift in mean state due to the involvement of atmospheric stratification. This increase is observed across all three scenarios in both future periods, with the SSP5-8.5 scenario exhibiting the most substantial rise during the far future. The warming climate leads to a more pronounced warming in the upper troposphere than the surface, resulting in tropospheric stabilization. This process contributes to the increase in STT through moist-adiabatic lapse rate adjustment. Additionally, the weakening of vertical motion constrains the increase in precipitation, despite the availability of abundant moisture. This study sheds light on the changing SST-precipitation relationship and provides a possible mechanism for the limited increase in precipitation. Therefore, this study offers a background for a better understanding of the non-monotonic response of precipitation to SST in the context of climate change.
Quenched complexity of equilibria for asymmetric generalized Lotka–Volterra equations
Authors: Ros Valentina , Roy Felix , Biroli Giulio , Bunin Guy 
Published: June 2023

Abstract
We consider the generalized Lotka–Volterra system of equations with all-to-all, random asymmetric interactions describing high-dimensional, very diverse and well-mixed ecosystems. We analyse the multiple equilibria phase of the model and compute its quenched complexity, i.e. the expected value of the logarithm of the number of equilibria of the dynamical equations. We discuss the resulting distribution of equilibria as a function of their diversity, stability and average abundance. We obtain the quenched complexity by means of the replicated Kac–Rice formalism, and compare the results with the same quantity obtained within the annealed approximation, as well as with the results of the cavity calculation and, in the limit of symmetric interactions, of standard methods to compute the complexity developed in the context of glasses.
2D Fluid Modeling of Light Pumped Na Containing Plasma to Develop a Prototype of a Photo Electromotive Force Converter
Authors: Mandour M M , Astashkevich S A , Kudryavtsev A A 
Published: June 2023

Abstract
The development of innovative technologies for direct solar energy conversion is one of the main trends of modernity. The use of solar semiconductor panels is well-known in solar photovoltaics. As an alternative to this, the use of gas photoplasma can be promising. However, research in this direction is still very fragmentary so far. This paper shows the results of a systematic study of photoplasma in mixtures of sodium and inert gases to obtain photo-EMF in a gas cell. A fluid modeling considering detailed plasma chemistry, radiation transfer, and charge diffusion processes and 2D simulation were fulfilled and main plasma parameters were obtained and analyzed. In particular, non-trivial dependence of EMF in a two-chamber gas cell containing sodium and argon on the pressure of the inert gas was obtained, reaching up to 1.3 eV by absolute value at 100 Torr of Ar and changing its sign near 5 Torr at the decrease of the pressure.
Practice of ecological remediation and restoration in plain river network -- a Case Study of Gehu Lake in Changzhou, China
Authors: Yu H L , Wang S Y , Cheng K Y , Huang S J , Lou Y F , Shentu H B , Wei J 
Published: June 2023

Abstract
This study provides a design diagram which involves a series of pragmatic strategies for ecological remediation and restoration of plain river networks in the Yangtze River Delta. The design diagram is composed of two stages: the first concerns the reduction of pollutants, including those from non-point sources, point sources, and river sediments; the second, the restoration of the biological habitat, including the riparian zone and aquatic habitat. A case study of Gehu Lake was used as an example for the implementation of the suggested design diagram, and further suggestions were provided for the improvement of remediation work in plain river network areas. This research provides valuable insights into the methods of ecological restoration, and demonstrates the potential for multidisciplinary collaboration to help improve the environmental health of plain river networks.
Scaffold-free human vascular calcification model using a bio-three-dimensional printer
Authors: Nagaishi Yukiko , Murata Daiki , Yoshizato Hiromu , Nonaka Toshihiro , Itoh Manabu , Hara Hideo , Nakayama Koichi 
Published: June 2023

Abstract
Morbidity and mortality rates associated with atherosclerosis-related diseases are increasing. Therefore, developing new research models is important in furthering our understanding of atherosclerosis and investigate novel treatments. Here, we designed novel vascular-like tubular tissues from multicellular spheroids composed of human aortic smooth muscle cells, endothelial cells, and fibroblasts using a bio-3D printer. We also evaluated their potential as a research model for Mönckeberg’s medial calcific sclerosis. The tubular tissues were sufficiently strong to be handled 1 week after printing and could still be cultured for 3 weeks. Histological assessment showed that calcified areas appeared in the tubular tissues within 1 week after culture in a medium containing inorganic phosphate (Pi) or calcium chloride as the calcification-stimulating factors. Calcium deposition was confirmed using micro-computed tomography imaging. Real-time quantitative reverse transcription polymerase chain reaction analysis revealed that the expression of osteogenic transcription factors increased in calcified tubular tissues. Furthermore, the administration of Pi and rosuvastatin enhanced tissue calcification. The bio-3D printed vascular-like tubular structures, which are composed of human-derived cells, can serve as a novel research model for Mönckeberg’s medial calcific sclerosis.
SOLPS-ITER drift modeling of neon impurity seeded plasmas in EAST with favorable and unfavorable toroidal magnetic field direction
Authors: WANG Fuqiong , LIANG Yunfeng , XU Yingfeng , ZHA Xuejun , ZHONG Fangchuan , MAO Songtao , DUAN Yanmin , HU Liqun 
Published: June 2023

Abstract
To better understand divertor detachment and asymmetry in the Experimental Advanced Superconducting Tokamak (EAST), drift modeling via the comprehensive edge plasma code SOLPS-ITER of neon impurity seeded plasmas in favorable/unfavorable toroidal magnetic field (B
T) has been performed. Firstly, electrostatic potential/field (

ϕ

/E) distribution has been analyzed, to make sure that

ϕ

and E are correctly described and to better understand drift-driven processes. After that, drift effects on divertor detachment and asymmetry have been focused on. In accordance with the corresponding experimental observations, simulation results demonstrate that in favorable B
T the onset of detachment is highly asymmetric between the inner and outer divertors; and reversing B
T can significantly decrease the magnitude of in-out asymmetry in the onset of detachment, physics reasons for which have been explored. It is found that, apart from the well-known
E
×
B
drift particle flow from one divertor to the other through the private flux region, scrape-off layer (SOL) heat flow, which is much more asymmetrically distributed between the high field side and low field side for favorable B
T than that for unfavorable B
T, is also a critical parameter affecting divertor detachment and asymmetry. During detachment, upstream pressure (P
u) reduction occurs and tends to be more dramatical in the colder side than that in the hotter side. The convective SOL heat flow, emerging due to in-out asymmetry in P
u reduction, is found to be critical for understanding divertor detachment and asymmetry observed in EAST. To better understand the calculated drastic power radiation in the core and upstream SOL, drift effects on divertor leakage/retention of neon in EAST with both B
T directions have been addressed for the first time, by analyzing profile of poloidal neon velocity and that of neon ionization source from atoms. This work can be a reference for future numeric simulations performed more closely related to experimental regimes.
Estimating aging sensitivity of bitumen using FTIR spectroscopy and multivariate evaluation
Authors: Weigel Sandra 
Published: June 2023

Abstract
In this work, a methodology based on Fourier transform infrared (FTIR) spectroscopy and multivariate evaluation is presented to estimate the aging sensitivity of bitumen based on the unaged samples and thus without the need for time- and material-consuming aging simulations. For this purpose, factor analysis and linear discriminant analysis are used to develop a statistical model based on the FTIR spectra of unaged bitumen samples, which can be used fast and simple in everyday laboratory work and allows to assign the bitumen to a low, moderate, or strong aging sensitivity. The evaluation of the aging sensitivity is based on the complex shear modulus |G*| and the phase angle δ from the measurement with a dynamic shear rheometer (DSR), whose aging-related changes were captured as the slope in the Black diagram. A relevant influence on the classification concerning the aging sensitivity has the oxygen-containing compounds (sulfoxide, hydroxyl and partly carbonyl compounds), whereby lower contents and thus less preaged bitumen tend to have a stronger aging sensitivity. However, in addition to the oxygen-containing compounds, the structure of the aliphatic and aromatic compounds and, in particular, the interaction of the different structures are decisive for the aging sensitivity.
Advanced Preservation Rhinoplasty in the Era of Osteoplasty and Chondroplasty: How Have We Moved Beyond the Cottle Technique?
Authors: Ferreira Miguel Gonçalves , Toriumi Dean M , Stubenitsky Bart , Kosins Aaron M 
Published: June 2023

Abstract

Background
Over the last 10 years, many new papers on innovative strategies from different surgeons worldwide have elevated the philosophy of preservation rhinoplasty (PR) to a different level: advanced preservation rhinoplasty.

Objectives
The goal of this article was to illustrate how 4 experienced surgeons approach important anatomical and functional issues related to PR.

Methods
M.G.F., A.M.K., B.S., and D.M.T. were asked about how they approach classical problems and relative contraindications for dorsal PR with different modern advanced preservation rhinoplasty techniques.

Results
The answers of each surgeon make clear a new reality in dorsal PR that did not exist in the recent past. These advances in dorsal PR techniques are due to many surgeons’ contributions, leading this practice to a different level: advanced preservation rhinoplasty.

Conclusions
Dorsal preservation is making a dramatic resurgence and is fueled by the many very talented surgeons who are demonstrating outstanding outcomes with preservation techniques. The authors believe that this trend will continue, and a mutual collaboration between structuralists and preservationists going forward will continue to advance rhinoplasty as a specialty.
Single fathers sacrifice their broods and re-mate quickly in a socially monogamous cichlid
Authors: Zimmermann Holger , Sefc Kristina M , Bose Aneesh P H 
Published: June 2023

Abstract
When one of two parents disappears in the midst of caring for offspring, the remaining parent is left with several options. They can either (1) desert the brood, (2) continue caring on their own and reject propositions from new potential partners, or (3) continue caring but remain receptive to re-mating opportunities. The presence of a brood may increase re-mating success of single parents, either because brood care is perceived as a signal of partner quality, or because prospective mates perceive the brood as potential energy source. In this field experiment, we used the socially monogamous, biparental cichlid fish Variabilichromis moorii to examine the re-mating strategy of males with or without dependent offspring after the loss of their female partner. Partner vacancies were filled quickly by new females, and these females engaged in high levels of affiliative behavior with the males. The new females engaged in territorial defense, but focused primarily against intruding conspecifics, likely as a means to repel rivals. The males, in turn, took over the majority of territorial defense against intruding heterospecifics. Interestingly, males that still had offspring from their previous partnerships did not show aggression toward their new female partners, even when those females were infanticidal and cannibalizing the males’ current offspring. Overall, our experiment shows that single fathers of a biparental species will re-mate quickly even at the detriment to their current offspring.