bluuebunny/crossref_metadata_2025 huggingface dataset:
MOF/COF hybrids as next generation materials for energy and biomedical applications
Authors: Altintas Cigdem , Erucar Ilknur , Keskin Seda
Published: October 2022

MOF/COF hybrids combine the outstanding features of MOF and COF structures, such as high crystallinities, large surface areas, high porosities, and improved chemical and mechanical stabilities.
An atomistic explanation of the ethanol–water azeotrope
Authors: Carravetta Vincenzo , Gomes Anderson Herbert de Abreu , Marinho Ricardo dos Reis Teixeira , Öhrwall Gunnar , Ågren Hans , Björneholm Olle , de Brito Arnaldo Naves
Published: October 2022

Above ethanol–water azeotrope water molecules (red) migrate toward the surface and ethanol surface concentration never comes to a complete saturation.
Rational design of efficient deep eutectic solvents for HCl absorption through their competitive H-bonding interactions
Authors: Feng Lin , Li Shuyi , Li Chunxi , Meng Hong , Lu Yingzhou , Fan Hongwei
Published: October 2022

The high reversible solubility of HCl in BmimCl-TAA depends on its competitive hydrogen bond interactions and dynamic structural changes.
Mechanically interlocked derivatives of carbon nanotubes: synthesis and potential applications
Authors: López-Moreno Alejandro , Villalva Julia , Pérez Emilio M.
Published: October 2022

An introduction to mechanically interlocked derivatives of single-walled carbon nanotubes: their main structural features, their potential advantages compared to covalent and supramolecular derivatives, how to synthesize them, and their most promising fields for application.
Efficient methanol steam reforming over ZnCeZrOx: the unique role of cerium
Authors: Chen Xuelian , Feng Zhaochi , Zhao Dongyuan , Yang Qihua , Li Can
Published: October 2022

Zn1Ce1Zr9Oxis a ternary solid solution with Zn and Ce doped into the lattice of ZrO2, which is more active and stable than the counterpart without cerium doping in steam reforming of methanol.
Promoting practical photodegradation application potential of a Bi2WO6-based step-scheme heterojunction under outdoor natural sunlight irradiation
Authors: Zhang Yuanyuan , Shi Linxing , Sun Xianggang , Duan Liangsheng , Li Qile , Huang Zengguang , Ding Ruiqiang , Ban Xinxin , Zhang DongEn
Published: October 2022

The majority of current photodegradation experiments utilize high-energy xenon lamps as simulated sunlight, which ignores the changeable weather in nature.
Precursor film formation on catalyst–electrolyte–gas boundaries during CO2 electroreduction with gas diffusion electrodes
Authors: Erbil H. Yildirim
Published: October 2022

Thin and long layers of catholyte precursor films spread near triple-phase boundaries on composite catalysts containing hydrophobic materials. Dissolved CO2 molecules in the precursor films reduce on the composite catalyst surface without depletion.
Water-induced gaseous formaldehyde decomposition using ruthenium organic crystalline particles
Authors: Shen Yangbin , Xu Ying , Zhang Ting , Zhan Yulu , Guo Chunxian
Published: October 2022

Novel ruthenium organic crystalline particles are prepared for providing two distinctive approaches for formaldehyde decomposition: catalytic oxidation or water-induced formaldehyde decomposition.
Improving the luminescence property of the novel yellow-emitting phosphor SrLa2Sc2O7:Bi3+ with charge compensators (Li+, Na+, K+) and its application in NUV-based white LEDs
Authors: Yang Huifang , Li Panlai , Ye Zejun , Huo Xiaoxue , Wang Yu , Wu Qian , Wang Zhijun
Published: October 2022

In this work, a novel yellow-emitting phosphor SrLa2Sc2O7:Bi3+ was synthesized by high temperature solid-state method, ranging from 400 nm to 800 nm under near-ultraviolet (NUV) excitation and the full width at half maximum (FWHM) of up to 180 nm.
Highland barley β-glucan alleviated western diet-induced non-alcoholic fatty liver disease via increasing energy expenditure and regulating bile acid metabolism in mice
Authors: Liu Huicui , Sun Yanli , Nie Chenxi , Xie Xiaoqing , Yuan Xiaojin , Ma Qingyu , Zhang Min , Chen Zhifei , Hu Xinzhong , Li Juxiu
Published: October 2022

Non-alcoholic fatty liver disease (NAFLD) has become a public health burden.
Evening primrose seed extract rich in polyphenols modulates the invasiveness of colon cancer cells by regulating the TYMS expression
Authors: Ciszewski Wojciech M. , Włodarczyk Jakub , Chmielewska-Kassassir Małgorzata , Fichna Jakub , Wozniak Lucyna A. , Sobierajska Katarzyna
Published: October 2022

Natural polyphenols are plant metabolites exhibiting a broad range of biological activities.
Decision making with the deterministic judgment of urea production with various hydrogen sources: technical, economic, and environmental aspects
Authors: Kim Heehyang , Lee Aejin , Lim Hankwon
Published: October 2022

Decision making analysis of renewable urea production with various hydrogen sources (grey, blue, brown, green, pink, and turquoise hydrogen) was investigated in terms of technical, economic, and environmental asepcts.
Precise/small sample size determination of stable Cd isotope ratios of geological samples with double spike MC-ICP-MS
Authors: Guo Chao , Li Tao , Li Gaojun , Chen Tianyu , Li Le , Zhao Liang , Ji Junfeng
Published: October 2022

The modified chemical purification protocol and double spike Cd isotope method avoid using the toxic HBr to isolate Cd from Zn and show very high tolerance to the presence of Zn in the sample solutions.
Security labeling and optical information encryption enabled by laser-printed silicon Mie resonators
Authors: Syubaev Sergey , Gordeev Ilya , Modin Evgeny , Terentyev Vadim , Storozhenko Dmitriy , Starikov Sergei , Kuchmizhak Aleksandr A.
Published: October 2022

Direct femtosecond-laser patterning of thin amorphous Si films is proposed for optical information encryption and highly reproducible fabrication of security labels composed of Raman-active hemispherical Si nanoparticles.
Synthesis of bottlebrush polymers based on poly(N-sulfonyl aziridine) macromonomers
Authors: Archer William R. , Dinges Grace E. , MacNicol Piper L. , Schulz Michael D.
Published: October 2022

We synthesized bottlebrush polymers with polyaziridine brushes and a polynorbornene backbone by a grafting-through approach. The polyaziridine macromonomer aggregates in solution, but these aggregates disperse over the course of the polymerization.
Dual cross-linking strategy to prepare fluorine-containing poly(arylene ether nitrile) films with a low dielectric constant and ultra-low water uptake
Authors: Cao Tong , Shi Yifei , Li Xiaoyu , Peng Jun , Liu Xiaobo , Huang Yumin
Published: October 2022

Dual cross-linked networks based on fluorine-containing poly(arylene ether nitrile) were constructed by a simple thermal treatment for obtaining flexible low-dielectric materials with excellent comprehensive performance.
Fabricating BiVO4/FeOOH/ZnFe-LDH hierarchical core–shell nanorod arrays for visible-light-driven photoelectrochemical water oxidation
Authors: Liu Changhai , Zhang Yue , Yin Ge , Shi Tiantian , Zhang Yue , Chen Zhidong
Published: October 2022

In this paper, porous BiVO4 nanorod arrays were encapsulated with FeOOH and ZnFe layered double hydroxide (ZnFe LDH) for the construction of hierarchical structures to achieve excellent transfer and separation of photogenerated electron–hole pairs.
Enzyme-linked aptamer-based sandwich assay (ELASA) for detecting Plasmodium falciparum lactate dehydrogenase, a malarial biomarker
Authors: Kim Yeon-Jun , Choi Jae-Won
Published: October 2022

We report a sensitive and selective enzyme-linked aptamer-based sandwich assay (ELASA) to detect Plasmodium falciparum lactate dehydrogenase (PfLDH), which is an attractive biomarker for malaria diagnosis.
Sensitive electrochemical sensor based on nickel/PDDA/reduced graphene oxide modified screen-printed carbon electrode for nitrite detection
Authors: Paisanpisuttisin Aunyarut , Poonwattanapong Praewpitcha , Rakthabut Punnada , Ariyasantichai Paranee , Prasittichai Chaiya , Siriwatcharapiboon Wilai
Published: October 2022

A highly sensitive electrochemical sensor for detection of nitrite based on nickel, poly(diallyldimethylammonium chloride) (PDDA), reduced graphene oxide (rGO) and a disposable screen-printed carbon electrode (SPCE).
Uniquely sized nanogels via crosslinking polymerization
Authors: Kusmus Disraëli N. M. , van Veldhuisen Thijs W. , Khan Anzar , Cornelissen Jeroen J. L. M. , Paulusse Jos M. J.
Published: October 2022

Epoxide-containing nanogels were synthesized in one step, achieving size control through monomer conversion, these were subsequently subjected to a variety of post-synthesis modifications proving sustained accessibility of the epoxide moiety.
New bio-based polyester with excellent spinning performance: poly(tetrahydrofuran dimethanol-co-ethylene terephthalate)
Authors: Chen Yu-long , Mu Yue-song , He Ze-jian , Pu Xin-ming , Wang Dong-qi , Zhou Mi , Yang Li-ping
Published: October 2022

PEFTs have excellent classical spinning properties as compared to PET and have potential applications in hydrophobic nanofibrous films.
Graph–sequence attention and transformer for predicting drug–target affinity
Authors: Yan Xiangfeng , Liu Yong
Published: October 2022

We proposed a novel model based on self-attention, called GSATDTA, to predict the binding affinity between drugs and targets. Experimental results show that our model outperforms the state-of-the-art methods on two independent datasets.
An efficient photocatalyst based on H5PMo10V2O40/UiO-66-NH2 for direct hydroxylation of benzene to phenol by H2O2
Authors: Jia Xu , Wang Fuying , Wen Hao , Zhang Liuxue , Jiao Shuyan , Wang Xiulian , Pei Xinyi , Xing Shuzhou
Published: October 2022

To realize the direct hydroxylation of benzene to phenol by hydrogen peroxide, an efficient photoactive catalyst system was prepared by the recombination of H5PMo10V2O40 and UiO-66-NH2.
Performance evaluation of Zr(CUR)/NiCo2S4/CuCo2S4 and Zr(CUR)/CuCo2S4/Ag2S composites for photocatalytic degradation of the methyl parathion pesticide using a spiral-shaped photocatalytic reactor
Authors: Zolfaghari Hamideh , Yousefi Fakhri , Ghaedi Mehrorang , Mosleh Soleiman
Published: October 2022

Fabrication of Zr(CUR)/NiCo2S4/CuCo2S4 and Zr(CUR)/CuCo2S4/Ag2S composites as an efficient photocatalyst. Examination of the potential of a spiral-shaped photocatalytic reactor for degradation of the methyl parathion pesticide.
Insights into the catalytic potential of a rationally designed magnetic boron nitride nanosheet supported nickel catalyst for the efficient synthesis of 1,4-dihydropyridines
Authors: Rana Pooja , Dixit Ranjana , Sharma Shivani , Dutta Sriparna , Yadav Sneha , Arora Bhavya , Priyanka  , Kaushik Bhawna , Gawande Manoj B. , Sharma Rakesh K.
Published: October 2022

Magnetically integrated ultrathin h-BN nanosheets based nickel catalyst for the one-pot multicomponent reaction to access 1,4-dihydropyridines.
Reassessment of N2 activation by low-valent Ti-amide complexes: a remarkable side-on bridged bis-N2 adduct is actually an arene adduct
Authors: Huh Daniel N. , Koby Ross F. , Stuart Zoe E. , Dunscomb Rachel J. , Schley Nathan D. , Tonks Ian A.
Published: October 2022

The complex {(TMEDA)2Li}{[Ti(N(TMS)2)2]2(μ-η2:η2-N2)2} (5-Li) was the only transition metal N2 complex ever reported with two side-on N2 adducts. Reanalysis of 5-Li has revealed that it is an inverse-sandwich toluene adduct, not an N2 adduct.
Synthesis of complex bicyclic scaffolds by intermolecular photosensitized dearomative cycloadditions of activated alkenes and naphthalenes
Authors: Wang Wang , Cai Yanyao , Guo Renyu , Brown M. Kevin
Published: October 2022

An intermolecular dearomative cycloaddition of activated alkenes and naphthalenes is presented. The reaction provides access to complex 3D scaffolds from simple 2D arenes.
Synthesis of phosphiranes via organoiron-catalyzed phosphinidene transfer to electron-deficient olefins
Authors: Xin Tiansi , Geeson Michael B. , Zhu Hui , Qu Zheng-Wang , Grimme Stefan , Cummins Christopher C.
Published: October 2022

The iconic cyclopentadienyliron dicarbonyl dimer ([CpFe(CO)2]2 or Fp2) catalyzes phosphinidene group transfer from anthracene to activated alkenes, forming new phosphiranes diastereoselectively and with good isolated yields.
Ten-step asymmetric total syntheses of potent antibiotics anthracimycin and anthracimycin B
Authors: Tian Peilin , Ye Wenkang , Zhang Xiayan , Tong Yi , Qian Pei-Yuan , Tong Rongbiao
Published: October 2022

A convergent protecting-group free 10-step total synthesis of anthracimycin and anthracimycin B (first) was achieved, featuring cascade vinylogous Mukaiyama Aldol and intramolelucular Diels–Alder reaction and Z-selective ring-closing metathesis.
Enhanced interaction between Ru nanoparticles and N, C-modified mesoporous TiO2for efficient electrocatalytic hydrogen evolution at all pH values
Authors: Xu Wei , Xie Huijie , Cao Fuyuan , Ran Saisai , Duan Yuhao , Li Bin , Wang Lei
Published: October 2022

Tailoring the interaction between metal nanoparticles and the support is of great significance in the development of efficient and economical non-platinum catalysts for the electrocatalytic hydrogen evolution reaction (HER).
V2CTx-MXene partially derived hybrid VS2/V2CTx electrode for capacitive deionization with exceptional rate and capacity
Authors: Yu Fei , Yang Zhengqu , Zhang Xiaochen , Yang Peiyu , Li Liqing , Ma Jie
Published: October 2022

The hybrid VS2/V2CTx electrode based on partial derivation of V2CTx-MXene and model regulation showed excellent desalination capacity and rate.
Optimized thermal design for excellent wearable thermoelectric generator
Authors: Hu Kai , Yang Dongwang , Hui Yueyue , Zhang Huazhang , Song Rongguo , Liu Yutian , Wang Jiang , Wen Pin , He Daping , Liu Xiaopan , Yan Yonggao , Tang Xinfeng
Published: October 2022

Increasing the thermal conductivity of the substrates for heat collection and dissipation is conducive to the realization of wearable thermoelectric generators with light weight, low cost and high power density.
Greatly enhanced stability of CsPbBr3@PbBrOH through water induction
Authors: Li Jinkai , Liu Guiyuan , Lu Yizhong , Liu Zongming
Published: October 2022

CsPbBr3@PbBrOH with superior luminescence properties and stability was successfully synthesized by a water induction technique.
Organic memory devices and synaptic simulation based on indacenodithienothiophene (IDTT) copolymers with improved planarity
Authors: Feng Zihao , Comí Marc , Ren Yi , Sredojević Dušan , Attar Salahuddin , Yang Jiaqin , Wang Zhanpeng , Chen Ruo-Si , Han Su-Ting , Al-Hashimi Mohammed , Zhou Ye
Published: October 2022

Memory and synaptic devices based on three IDTT-based copolymers were investigated.
Mechanisms of TNF-independent RIPK3-mediated cell death
Authors: Tummers Bart , Green Douglas R.
Published: October 2022

Apoptosis and necroptosis regulate many aspects of organismal biology and are involved in various human diseases. TNF is well known to induce both of these forms of cell death and the underlying mechanisms have been elaborately described. However, cells can also engage apoptosis and necroptosis through TNF-independent mechanisms, involving, for example, activation of the pattern recognition receptors Toll-like receptor (TLR)-3 and -4, or zDNA-binding protein 1 (ZBP1). In this context, cell death signaling depends on the presence of receptor-interacting serine/threonine protein kinase 3 (RIPK3). Whereas RIPK3 is required for TNF-induced necroptosis, it mediates both apoptosis and necroptosis upon TLR3/4 and ZBP1 engagement. Here, we review the intricate mechanisms by which TNF-independent cell death is regulated by RIPK3.
Filamin A regulates caspase-3 cleavage in platelets in a protein kinase C (PKC)-dependent manner
Authors: De Silva Enoli , Devine Dana V. , Jan Eric , Roskelley Calvin D. , Kim Hugh
Published: October 2022

Apoptosis is a critical process for the maintenance of cell populations, and involves mitochondrial depolarization, the sequential cleavage of caspase-9 and -3, followed by the externalization of phosphatidylserine (PS) on the plasma membrane. The actin cytoskeleton and its accessory proteins are known regulators of apoptotic signaling in nucleated cells but their roles in platelet apoptosis are undefined. Filamin A (FLNA) is a ubiquitously expressed actin-crosslinking protein that also serves as an intracellular signaling scaffold. Here we used platelets from mice with a platelet-specific FLNA deficiency (Flnafl/Y, Pf4-cre/+, termed platelet-specific knockout) to test the role of FLNA in platelet apoptosis. Treatment with the BH3-mimetic drug ABT-737 induced caspase-3 cleavage and PS exposure in platelets from floxed mice (Flnafl/Y, termed control) but these effects were essentially abrogated in FLNA-null platelets (platelet-specific knockout). Protein kinase C (PKC), a known FLNA ligand, was also activated by ABT-737, and PKC's phosphorylation of its downstream substrates was attenuated in FLNA-null platelets. The PKC inhibitor bisindolylmaleimide (BIM) also reduced caspase-3 cleavage, thus essentially phenocopying the FLNA-null platelets. Notably, the caspase-3 cleavage defect in FLNA-null platelets was rescued by the PKC-activating phorbol ester PMA, suggesting that FLNA and PKC share a common pathway in regulating platelet apoptosis. Mitochondrial depolarization and caspase-9 cleavage were unaffected by BIM treatment, suggesting that PKC specifically controls the downstream caspase-3 point of the pro-apoptotic signaling pathway. These data point to a novel role for FLNA in the regulation of platelet apoptosis, thus providing an improved understanding of how circulating platelet counts are maintained.
Feasibility of a Proactive Parent-Implemented Communication Intervention Delivered via Telepractice for Children With Classic Galactosemia
Authors: Finestack Lizbeth H. , Potter Nancy , VanDam Mark , Davis Jennifer , Bruce Laurel , Scherer Nancy , Eng Linda , Peter Beate
Published: October 2022

Purpose:

This study evaluated the feasibility of Babble Boot Camp (BBC) for use with infants with classic galactosemia (CG) starting at less than 6 months of age. BBC is a parent-implemented intervention delivered by speech-language pathologists (SLPs) entirely via telepractice with the potential to increase access to early preventative interventions. We evaluated BBC feasibility based on acceptability, implementation, and practicality.

Method:

We obtained data from 16 parents of infants with CG (mean age at enrollment = 3.38 months) involved in a large randomized clinical trial of BBC. BBC uses a teach–model–coach–review approach to provide parents with strategies to support their child's communication development. Families completed, on average, eighty-one 15-min sessions over a 20-month intervention period. We drew data from surveys completed by parents at the end of the intervention period, intervention logs maintained by the SLPs, and intervention fidelity checks completed by research assistants.

Results:

Data drawn from parent surveys, intervention logs, and intervention fidelity checks revealed high parent acceptability, high rates of completion and compliance, and low costs in terms of parent and clinician time.

Conclusion:

Results suggest that BBC is feasible for families of infants with CG, warranting further examination of BBC across a broader range of children with CG as well as other infants who are at predictable risk for speech and language impairment.
The effect of temperature on the wear behaviour of dental composites
Authors: Arsecularatne Joseph A. , Tran Serena , Hoffman Mark J.
Published: October 2022

Despite numerous published studies on the wear of dental composites, few have considered the influence of temperature on the two‐body wear process. Additionally, no previous work has considered the influence of temperature on dominant wear mechanisms during the consumption of hot substances, hence the focus of this study. Reciprocating wear tests were carried out at varying artificial saliva lubricant temperatures (37 and 57°C) and material loss was quantified using profilometry. The wear tracks were analysed using FIB/SEM/TEM. Results reveal that the wear rate of a dental composite can significantly increase with temperature, with fatigue/delamination and ploughing acting as dominant mechanisms.
Robust fuzzy observer‐based fault‐tolerant control: A homogeneous polynomial Lyapunov function approach
Authors: Sabbaghian‐Bidgoli Farzaneh , Farrokhi Mohammad
Published: October 2022

In this paper, a homogeneous polynomial Lyapunov function (HPLF) is employed in robust observer‐based Integrated Fault‐Tolerant Control (IFTC) of nonlinear systems modelled by the polynomial fuzzy model (PFM). This makes the design problem benefit from the conservative reduction property of polynomial Lyapunov functions (PLFs) and simultaneously avoid the emergence of non‐convex terms due to differentiation of the polynomial Lyapunov matrix. As a result, the less conservative sum of square (SOS) conditions are obtained in the form of polynomial matrix inequalities (PMI), which are solved via SOSTOOLS. For the first time, a non‐quadratic Lyapunov function is used to design a polynomial fuzzy unknown‐input observer that estimates the system's states and actuator faults in the presence of model uncertainties and external disturbances. The effectiveness of the proposed approach in providing more relaxed and less conservative results along with the better fault tolerance is illustrated through three simulating examples and compared with the quadratic Lyapunov function (QLF) approach.
Deterministic submanifolds for the backward‐evolving quantum state concerning a monitored qubit
Authors: Miao Zibo , Zhang Zigui , Li Kai , Pan Yu , Sarlette Alain
Published: October 2022

The evolution of a quantum system subject to continuous weak measurement is described by a stochastic differential equation (SDE). It has been shown that the conventional density matrix characterized by such SDE, under experimentally relevant settings, remains within a deterministically evolving manifold of low dimension, whose associated equations can be computed explicitly. In this paper, as a complement, it is demonstrated that the effect matrix , associated to a quantum system at the time t to express its measurement during the interval , also remains confined to a deterministically evolving manifold. In particular, by using the Bloch sphere representation together with the properties of Pauli matrices (as the quantum representation of quaternions), deterministic submanifolds for the effect matrix concerning a monitored qubit are given explicitly. The qubit stays on a deterministically evolving curve in the homodyne amplitude detection scenario, and on a deterministically moving surface under heterodyne amplitude detection. This deterministic characterization should be of interest for parameter estimation and towards obtaining computationally efficient quantum filters for real‐time quantum control.
False‐alarm suppression with random forest by exploiting ambiguity features of targets
Authors: Wang Zhifei , Yu Junpeng , Yang Yuhao
Published: October 2022

Suppressing false alarms without impacting detection rate is an essential issue for search radars. Traditional threshold detection methods identify true targets by simply comparing the energy of target candidates with a threshold. In this work, a new data‐driven false‐alarm suppression approach is proposed based on a random forest model. It discriminates true targets and false alarms in the developed multi‐dimensional ambiguity feature spaces, instead of the time‐frequency features used in previous works, to fulfill short dwell‐time requirement of search radars. Evaluations through field experiments demonstrate that the proposed method can achieve as high as 98% validation accuracy and a significant improvement of detection performance compared to the conventional threshold detection.
Fast intra partition and mode prediction for equirectangular projection 360‐degree video coding
Authors: Zheng‐Jie Shu , Zong‐Ju Peng , Gang‐Yi Jiang , Fen Chen , Bo‐Sen Yuan
Published: October 2022

360‐degree videos have drawn great attention from both the academia and the industry. For transmission and storage of 360‐degree video, the joint video exploration team proposed the Versatile Video Coding (VVC) standard. VVC can significantly reduce the bitrate while maintaining the same subjective visual quality compared to the preceding high efficiency video coding. However, the computational complexity of VVC is extremely high which hinders the interactive applications. This paper proposes a fast intra partition method and mode prediction algorithm for equirectangular projection 360‐degree video coding. First, a latitude‐based preprocessing is introduced to early terminate the Coding Unit (CU) partition in the polar region. Second, the support vector machine is used to predict the CU partition type. Third, the fast intra mode search method accelerates the intra mode prediction. Experimental results show that the proposed algorithm can significantly obtain an average time reduction rate of 60.40% and a Bjontegaard delta rate increase of 1.96%.
Real‐time resilient microgrid power management based on multi‐agent systems with price forecast
Authors: Cruz Victorio Marcos Eduardo , Kazemtabrizi Behzad , Shahbazi Mahmoud
Published: October 2022

Microgrids have emerged to diversify conventional electric generation using small‐scale distributed generation. Large efforts have been put into designing control strategies to optimise the power schedules of microgrids, however, verification that such control systems also are reliable in terms of stability during normal operation and fault conditions is needed. This study presents a hierarchical distributed control system that fulfils these conditions for an AC microgrid. The stability maintained by proposed controller, considering the large signal model, is analysed with the use of Lyapunov's direct method. Resilient control distribution is achieved by the implementation of suitable forecast models and fault‐tolerance mechanisms to avoid single points of failure. The resilience of the control system is verified with the use of graph theory. The stable and resilient operation of the proposed control system is tested by a real‐time microgrid model implemented with an OPAL‐RT real‐time simulator, combined with a communication network built with Raspberry Pis, testing the control system presented under normal and faulty conditions. Simulation results show a stable operation in terms of voltage and frequency in both conditions, resilient operation is shown for the faulty condition case. Additionally, cost minimisation performance is included to validate optimal power management capabilities.
Comparison of wind speed forecasting models for power reserve scheduling in the congested transmission network
Authors: Zheng Yingying , Sang Yuanrui , Liu Chang , Zhu Jie , Cao Jinye , Zhao Yongning , Yang Dechang
Published: October 2022

Due to its stochastic nature, wind energy imposes unprecedented challenges on the power grid, and a properly scheduled reserve is essential to accommodate wind power's intermittency and volatility. Many power reserve scheduling studies have considered the uncertainties of the renewable energy integration but few address how different wind speed forecast techniques influence the scheduling of reserves in the congested transmission networks. Here, three forecasting techniques: Artificial neural network, autoregressive integrated moving average, and probability distribution function‐based model are adopted to forecast one day of wind speed at Taylor, Texas in 2012. To evaluate the impacts of the forecast techniques on power reserve scheduling, a stochastic reserve optimization model was developed to ensure the delivery of reserve in the event of transmission congestion and ramping constraints. A modified RTS‐96 test system was employed and the results claim that different forecast models significantly affect the amount of scheduled up and down reserves in a stochastic reserve optimization problem. The level of operating reserve that is induced by wind is not constant during all hours of the day. Dynamic up and down reserves will be needed with a large scale of wind farm integration.
X-ray emission from cosmic web filaments in SRG/eROSITA data
Authors: Tanimura H. , Aghanim N. , Douspis M. , Malavasi N.
Published: October 2022

Using the publicly available eROSITA Final Equatorial Depth Survey (eFEDS) data, we detected the stacked X-ray emissions at the position of 463 filaments at a significance of 3.8σbased on the combination of all energy bands. In parallel, we found that the probability of the measurement under the null hypothesis is ∼0.0017. The filaments were identified with galaxies in the Sloan Digital Sky Survey survey, ranging from 30 Mpc to 100 Mpc in length at 0.2 < z < 0.6. The stacking of the filaments was performed with the eFEDS X-ray count-rate maps in the energy range between 0.4 and 2.3 keV after masking the resolved galaxy groups and clusters and the identified X-ray point sources from the ROSAT,Chandra,XMM-Newton, and eROSITA observations. In addition, diffuse X-ray foreground and background emissions or any residual contribution were removed by subtracting the signal in the region between 10 and 20 Mpc from the filament spines. For the stacked signal, we performed an X-ray spectral analysis, which indicated that the signal is associated with a thermal emission. According to a model with the astrophysical plasma emission code for the plasma emission and with aβ-model gas distribution withβ = 2/3, the detected X-ray signal can be interpreted as emission from hot gas in the filaments with an average gas temperature of 1.0−0.2+0.3keV and a gas overdensity of 21 ± 5 at the center of the filaments.
Aeroacoustic formulations for confined flows based on incompressible flow data
Authors: Maurerlehner Paul , Schoder Stefan , Tieber Johannes , Freidhager Clemens , Steiner Helfried , Brenn Günter , Schäfer Karl-Heinz , Ennemoser Andreas , Kaltenbacher Manfred
Published: October 2022

The hybrid aeroacoustic approach is an efficient way to address the issue of the disparity of scales in Computational AeroAcoustics (CAA) at low Mach numbers. In the present paper, three wave equations governing propagation of flow-induced sound of low Mach number flows, namely the Perturbed Convective Wave Equation (PCWE), Ribner’s Dilatation (RIB) equation, and Lighthill’s wave equation, are applied using the Finite Element Method (FEM). An airflow through a circular pipe with a half-moon-shaped orifice at three operating flow speeds is considered, where validation data from measurements on a dedicated test rig is available. An extensive analysis of the flow field is provided based on the results of the incompressible flow simulation. The resulting acoustic source terms are investigated, and the relevant source term contributions are determined. The results of the acoustic propagation simulations revealed that the PCWE and RIB are best suited for the present task. The overall deviation of the predicted pressure spectra from the measured mean values amounted to 2.26 and 2.13 times the standard deviation of the measurement compared to 3.55 for Lighthill’s wave equation. Besides reliably predicting the flow-induced sound, the numerical procedure of source term computation is straightforward for PCWE and RIB, where the source term contributions, shown to be relevant, solely consist of time derivatives of the incompressible pressure. In contrast, the Lighthill source term involves spatial derivatives and, thus, is strongly dependent on the spatial resolution and the numerical method actually used for approximating these terms.
An attempt of reproduction of Sovacool et al.’s “Differences in carbon emissions reduction between countries pursuing renewable electricity versus nuclear power”
Authors: Perez Daniel
Published: October 2022

In this paper, we attempt to reproduce the results obtained by Sovacool et al. in their recent paper that focuses on the differences in carbon emissions reduction between countries pursuing renewable electricity versus nuclear power. We have found several flaws in the models and the statistical analysis performed theirein, notably the correlations performed between the fractions of renewable power and of nuclear power and greenhouse gas emissions per capita and the lack of consideration for natural bias between the variables examined.
Overview and loss analysis of III–V single-junction and multi-junction solar cells
Authors: Yamaguchi Masafumi , Dimroth Frank , Ekins-Daukes Nicholas J. , Kojima Nobuaki , Ohshita Yoshio
Published: October 2022

The development of high-performance solar cells offers a promising pathway toward achieving high power per unit cost for many applications. Because state-of-the-art efficiencies of single-junction solar cells are approaching the Shockley-Queisser limit, the multi-junction (MJ) solar cells are very attractive for high-efficiency solar cells. This paper reviews progress in III–V compound single-junction and MJ solar cells. In addition, analytical results for efficiency potential and non-radiative recombination and resistance losses in III–V compound single-junction and MJ solar cells are presented for further understanding and decreasing major losses in III–V compound materials and MJ solar cells. GaAs single-junction, III–V 2-junction and III–V 3-junction solar cells are shown to have potential efficiencies of 30%, 37% and 47%, respectively. Although in initial stage of developments, GaAs single-junction and III–V MJ solar cells have shown low ERE values, ERE values have been improved as a result of several technology development such as device structure and material quality developments. In the case of III–V MJ solar cells, improvements in ERE of sub-cells are shown to be necessary for further improvements in efficiencies of MJ solar cells.
The Innovation Research of the Network to the Ideological and Political Education of University Students in the Information Age
Authors: Li Miao
Published: October 2022

Under the environment of Information Age, the network carrier of ideological and political education meets the needs of college students’ ideological and political education by virtue of its individuality and multiple advantages. However, the network ideological and political platform is not professional, lack of coordination and uneven resources, which affects the quality of the network ideological and political education. In order to give full play to the advantages of the internet in the application of ideological and political education to college students, it is necessary to strengthen the carrier of ideological and political education on the Internet, break down the barriers of integration, and construct a multi-coordinated and all-round intelligent ideological and political system, drive ideological and political education to innovate in an all-round way. Based on the environment of the Information Age, this paper systematically analyzes the innovative influence of the network on the ideological and political education of college students, and puts forward some concrete strategies.
Impact of dust erosion on the reduction of axial compressor efficiency of a turboshaft engine and on the stability of its operation
Authors: Hocko Marián , Al-Rabeei Samer
Published: October 2022

This paper aimed to solve the impact of operational abrasive wear on the rotor blades of the axial compressor of the turboshaft engine on the decrease in its total compression efficiency ηCt and its transition into unstable work mode (surge). This process is analyzed based on the obtained data by operating TV3-117 helicopter turboshaft engines in high dust atmosphere conditions. Abrasive wear of the rotor blades of axial compressors causes mechanical damage to the blades, reducing their strength, changing their geometry, and aerodynamic properties, reducing the life of the whole compressor and thus the entire engine. Destruction of the compressor of a turboshaft engine may occur suddenly as a result of unstable compressor operation caused by damaged axial compressor blades due to their damage by the abrasive effect of dust.
Air Drying in an Industrial Compressor
Authors: Jeřábek Matěj , Volf Michal , Richter Lukáš
Published: October 2022

In many industrial applications where compressed air is used it is necessary to increase the quality of the air by decreasing its humidity. This is done by either a condensation or adsorption dryer in the compressor circuit. In this article, the focus is on an industrial adsorption air dryer. The dryer is briefly described together with its function and a selected range of adsorbents suitable for air drying. The paper further deals with the development of a mathematical model of air humidity adsorption which is based on the Pseudo Gas-side Controlled (PGC) model. This paper contains a detailed description of the model and describes its implementation in MATLAB. Finally, the results of the simulations are discussed.
Experimental indirect evaporative air conditioning system - a possible implementation
Authors: Szaszák Norbert , Juhász Attila
Published: October 2022

This article presents the principle of operation of an experimental indirect evaporative cooling system which applies liquid desiccant solution as a drying agent. This mobile system is going to be built for the investigation of the effects of different working parameters (e.g. regenerating temperature of the desiccant salt-solution, air flow rates, solution flow rates, droplet size and mixing path length, etc.) on the produced cooled and dehumidified air, as well as the effects of the initial hot-air parameters (temperature and humidity) on the effectiveness (cooling and dehumidification rate) of the system. In this paper the basic mechanisms of both the direct and indirect evaporative cooling systems are presented with their advantages and disadvantages. It is shown how the solar energy by means of solar collector(s) can be utilized as an energy source of the regeneration of the diluted desiccant solution. Besides the 3D drawing and the parts of the experimental cooler and air dryer system will be presented and explained.
Metabolism-epigenetic interactions on
Authors: Milazzotto Marcella Pecora , Ispada Jessica , de Lima Camila Bruna
Published: October 2022

Metabolism and epigenetics, which reciprocally regulate each other in different cell types, are fundamental aspects of cellular adaptation to the environment. Evidence in cancer and stem cells has shown that the metabolic status modifies the epigenome while epigenetic mechanisms regulate the expression of genes involved in metabolic processes, thereby altering the metabolome. This crosstalk occurs as many metabolites serve as substrates or cofactors of chromatin-modifying enzymes. If we consider the intense metabolic dynamic and the epigenetic remodelling of the embryo, the comprehension of these regulatory networks will be important not only for understanding early embryonic development, but also to determine in vitro culture conditions that support embryo development and may insert positive regulatory marks that may persist until adult life. In this review, we focus on how metabolism may affect epigenetic reprogramming of the early stages of development, in particular acetylation and methylation of histone and DNA. We also present other metabolic modifications in bovine embryos, such as lactylation, highlighting the promising epigenetic and metabolic targets to improve conditions for in vitro embryo development.
Environmental drivers of above-ground biomass in semi-arid rangelands
Authors: Kaveh Neda , Ebrahimi Ataollah , Asadi Esmaeil
Published: October 2022

Above-ground biomass (AGB), as a key biophysical and functional parameter of rangeland ecosystems, plays an important role in ecosystem carbon (C) stocks. The aim of this study was to explore the important environmental drivers of AGB in an arid rangeland by using structural equation modelling (SEM). Vegetation and soil (physical and chemical properties) were sampled using randomised-systematic methods within sampling plots. The topographic (elevation, slope, aspect, hillshade (i.e. a technique for showing the topographical shape of hills and mountains to indicate relative slopes and mountain ridges)) and climatic (mean temperature (MT), mean precipitation (MP), actual evapo-transpiration (AET) and land-surface temperature (LST)) properties were extrapolated using a raster-based digital elevation-model (DEM) map, and their values extracted at each sampling plot. SEM was then applied to assess the direct and indirect impacts of environmental factors on AGB. The AGB was directly affected by soil (41%, P < 0.05) and climatic properties (34%, P < 0.05). The effect of topographical factors on AGB was non-significant (P > 0.05). However, climatic properties were directly affected by topographical properties, with a path coefficient of 34%. Among soil properties, nitrogen, phosphorus and potassium concentrations, silt content and soil pH were the key factors affecting AGB. Climatic variables (MT, MP) were equally effective in explaining the climate latent variable (with loading factors of −0.97 and 0.99 respectively) and AGB changes. This study highlighted the importance of soil and climatic properties in AGB variation. SEM simplified and revealed the complex relationships among ecosystem components affecting AGB, which could assist proper management of rangelands.
Ratiometric thermometry using single Er3+-doped CaWO4 phosphors
Authors: Kolesnikov Ilya E , Mamonova Daria V , Kurochkin Mikhail A , Medvedev Vassily A , Bai Gongxun , Kolesnikov Evgenii Yu
Published: October 2022

Single doped CaWO4:Er3+ phosphors were synthesized and studied for application of optical thermal sensing within a wide range of 98–773 K. Ratiometric strategy utilizing two luminescence intensity ratios, one between host and Er3+ band (LIR1) and second between different Er3+ transitions (LIR2), results in self-referencing temperature readouts. The presence of two temperature-dependent parameters could improve thermometric characteristics and broaden the working temperature range compared to a usual single-parameter thermometer. Thermometric performances of prepared samples were evaluated in terms of thermal sensitivities, temperature resolution and repeatability. The highest sensitivity of 2.09% K−1@300 K was found for LIR1, whereas LIR2 provided more accurate thermal sensing with a temperature resolution of 0.06–0.1 K. Effect of Er3+ doping concentration on sensing properties were studied. The presented findings indicate that CaWO4:Er3+ phosphors are perspective in dual-mode thermal sensing with high sensitivity and sub-degree resolution.
Surface ionization waves propagating over non-planar substrates: wavy surfaces, cut-pores and droplets
Authors: Konina Kseniia , Kruszelnicki Juliusz , Meyer Mackenzie E , Kushner Mark J
Published: October 2022

Atmospheric pressure plasmas intersecting with dielectric surfaces will often transition into surface ionization waves (SIWs). Several applications of these discharges are purposely configured to be SIWs. During propagation of an SIW over a dielectric surface, the plasma charges the surface while responding to changes in geometrical and electrical material properties. This is particularly important for non-planar surfaces where polarization of the dielectric results in local electric field enhancement. In this paper, we discuss results from computational investigations of negative and positive SIWs propagating over nonplanar dielectrics in three configurations—wavy surfaces, cuts through porous materials and water droplets on flat surfaces. We found that negative SIWs are particularly sensitive to the electric field enhancement that occurs at the crests of non-planar surfaces. The local increase in ionization rates by the electric field enhancement can result in the SIW detaching from the surface, which produces non-uniform plasma exposure of the surface. Positive SIWs tend to adhere to the surface to a greater degree. These trends indicate that treatment of pathogen containing droplets on surfaces may be best performed by positive SIWs. The same principles apply to the surfaces cut through pores. Buried pores with small openings to the SIW may be filled by plasma by either flow of plasma into the pore (large opening) or initiated by photoionization (small opening), depending on the size of the opening compared to the Debye length.
Improved breakdown characteristic of AlGaN/GaN HEMTs with a width gradient recessed dual-gate structure
Authors: Zhang Sheng , Wei Ke , Zhang Yi-chuan , Chen Xiao-juan , Liu Xin-Yu , Niu Jie-bin
Published: October 2022

A dual-gate (DG) structure utilizing an integrated width gradient DC gate to balance the high-voltage and output current drop was performed for the fabrication of AlGaN/GaN high-electron-mobility transistor (HEMT). In comparison to the traditional single-gate devices, the DG HEMTs combine significantly allowable breakdown voltage behaviour with low gate leakage current and a positive shift threshold voltage, delivering one order of magnitude reduction in leakage current and a 36% improvement in maximum drain bias. The evaluated S parameters substantially exhibit a high power gain potential for DG devices due to the presence of DC gate.
Thermally-induced qubit coherence in quantum electromechanics
Authors: Abari N Etehadi , Rakhubovsky A A , Filip R
Published: October 2022

Quantum coherence, the ability of a quantum system to be in a superposition of orthogonal quantum states, is a distinct feature of the quantum mechanics, thus marking a deviation from classical physics. Coherence finds its applications in quantum sensing and metrology, quantum thermodynamics and computation. A particularly interesting is the possibility to observe coherence arising in counter-intuitive way from thermal energy that is without implementation of intricate protocols involving coherent driving sequences. In this manuscript, we investigate quantum coherence emerging in a hybrid system composed of a two-level system (qubit) and a thermal quantum harmonic oscillator (a material mechanical oscillator), inspired by recent experimental progress in fabrication of such systems. We show that quantum coherence is created in such a composite system solely from the interaction of the parts and persists under relevant damping. Implementation of such scheme will demonstrate previously unobserved mechanisms of coherence generation and can be beneficial for hybrid quantum technologies with mechanical oscillators and qubits.
Special exceptional point acting as Dirac point in one dimensional

PT

-symmetric photonic crystal
Authors: Wang Tiecheng
Published: October 2022

We reveal that a special exceptional point (EP) can act as a Dirac point in a one-dimensional

P
T

-symmetric photonic crystal and prove it in detail using our extended first-principle theory. This theory was developed by applying biorthogonal bases of the non-Hermitian Hamiltonian to the

k

→

⋅

p

→

method to study the dispersion relations of non-Hermitian systems. By using this theory, we demonstrate that two linear dispersions can cross at a critical touching point, which is a special EP, and the corresponding effective Hamiltonian can be cast into a massless Dirac Hamiltonian under the biorthogonal bases of the non-Hermitian Hamiltonian; therefore, this point can be called the Dirac point, and the linear slope can also be predicted. In contrast to the Dirac point in a Hermitian system, which is induced by the degeneracy of two different eigenstates, the Dirac point here is induced by the degeneracy of parallel eigenstates in a non-Hermitian system. In addition, after increasing the non-Hermiticity, the Dirac point evolves into a pair of EPs, and their positions in the band structure can be predicted well by our theory. Our findings and theory are important for further understanding the physics of the Dirac point in non-Hermitian wave systems.