bluuebunny/crossref_metadata_2025_split huggingface dataset:
Decentralized dynamic event‐triggered control for networked control systems under unreliable communication network and actuator saturation
Authors: Yang Fan , Shen Zhuan , Chen Jing , Hu Aihua , Zhang Jingxiang , Hu Manfeng 
Published: May 2022

AbstractIn this paper, the stochastic stability of networked control systems (NCSs) with nonlinear perturbation and parameter uncertainties is studied. A decentralized dynamic event triggering scheme (DDETS) is introduced to reduce energy consumption and network transmission burden. Each channel can decide whether to transmit signals sampled by corresponding sensors through this mechanism. Due to the unreliability of communication network, a new mathematical model of NCSs based on multi‐channel fading and hybrid cyber attacks is established, and the actuator is constrained by saturation. A sufficient condition for stochastic stability based on static controller is derived through Lyapunov stability theory, and two numerical examples are given to demonstrate the effectiveness of the method.
Multicriteria assessment of biomass gasification‐based hybrid energy systems in remote areas
Authors: Shakirov Vladislav , Kozlov Alexander 
Published: May 2022

AbstractThis study proposes an approach to multicriteria assessment of biomass gasification‐based hybrid energy systems in remote areas using the modified SMARTS method. This approach involves comparing two groups of hybrid energy systems: those based on biomass gasification and those based on diesel generation, which is already widely used in remote areas. The hybrid energy system configurations are developed using the HOMER software in terms of the maintenance schedule of biomass gasifiers. Alternatives are compared according to the criteria of economic, technical, environmental and social efficiency. The proposed modification of the SMARTS method uses both crisp and interval weights of criteria and criteria estimates for decision making under uncertainty of the preferences and input data, especially in terms of initial capital and operating costs, feedstock and diesel fuel prices. The final choice of a hybrid energy system is based on the relative dominance indicator. Two case studies of isolated rural settlements show that biomass gasifiers when supplemented with diesel generation and other renewable energy sources are the best sustainable solution as compared with other feasible alternatives. These conclusions are robust to sufficiently significant changes in preferences and input data. © 2022 Society of Chemical Industry and John Wiley & Sons, Ltd.
Engineering Pseudomonas putida for improved utilization of syringyl aromatics
Authors: Mueller Joshua , Willett Howard , Feist Adam M. , Niu Wei 
Published: May 2022

AbstractLignin is a largely untapped source for the bioproduction of value‐added chemicals. Pseudomonas putida KT2440 has emerged as a strong candidate for bioprocessing of lignin feedstocks due to its resistance to several industrial solvents, broad metabolic capabilities, and genetic amenability. Here we demonstrate the engineering of P. putida for the ability to metabolize syringic acid, one of the major products that comes from the breakdown of the syringyl component of lignin. The rational design was first applied for the construction of strain Sy‐1 by overexpressing a native vanillate demethylase. Subsequent adaptive laboratory evolution (ALE) led to the generation of mutations that achieved robust growth on syringic acid as a sole carbon source. The best mutant showed a 30% increase in the growth rate over the original engineered strain. Genomic sequencing revealed multiple mutations repeated in separate evolved replicates. Reverse engineering of mutations identified in agmR, gbdR, fleQ, and the intergenic region of gstB and yadG into the parental strain recaptured the improved growth of the evolved strains to varied extent. These findings thus reveal the ability of P. putida to utilize lignin more fully as a feedstock and make it a more economically viable chassis for chemical production.
Role of V and W Sites in V2O5−WO3/TiO2 Catalysts and Effect of Formaldehyde during NH3−SCR of NOx
Authors: Binh Ngo Anh , Huyen Vuong Thanh , Atia Hanan , Weiß Jana , Rabeah Jabor , Armbruster Udo , Brückner Angelika 
Published: May 2022

AbstractWO3/TiO2, V2O5/TiO2 and V2O5−WO3/TiO2 catalysts (1 wt % V, 6 wt % W) were tested in NH3‐SCR of NOx with/without formaldehyde and water and analyzed by in situ FTIR and operando EPR spectroscopy. Activity decreased in the order V−W−Ti>V−Ti≫W−Ti. Two VO3+/VO2+ sites with different redox behavior exist in V‐containing catalysts. Sites I were less active with restricted accessibility by reactants while activity is mainly driven by undercoordinated sites II exposed on the surface. In V−W−Ti, sites II can form W6+−O(H)−V5+ bridges, accelerating surface acidity and V reduction rate. HCHO lowers NOx conversion and N2 selectivity by reacting with NH3 to formamide that decomposes to HCN. Formation of formamide is promoted by high surface acidity and redox activity. Water lowers NH3 conversion by creating Brønsted sites that adsorb NH3 and suppress oxidation to N2O, thereby improving N2 selectivity.
Recent Developments on Cr‐Based Electrocatalysts for the Oxygen Evolution Reaction in Alkaline Media
Authors: Babu Sreejith P. , Falch Anzel 
Published: May 2022

AbstractAmong a plethora of transition‐metal catalysts explored for the oxygen evolution reaction (OER) in water electrolysis, the use of chromium (Cr) as a component, has only recently started to gain momentum. In this review, recent investigations where Cr has been utilised for alkaline OER has been summarised and evaluated. The Cr‐based electrocatalysts have been categorised and discussed according to their anion counterparts. From the majority of reviewed studies, Cr comes across as a beneficial co‐catalyst owing to its ability to act as either an electron acceptor or electron donor. This characteristic property stems from the many possible oxidation states of Cr, with Cr3+ and Cr6+ being the most pronounced states. This review emphasises on providing a holistic view of the role Cr plays in OER electrocatalysis, focussing mainly on the correlations of activity, structure, and electronic configuration.
Base‐free Oxidative Esterification of HMF over AuPd/nNiO‐TiO2. When Alloying Effects and Metal‐support Interactions Converge in Producing Effective and Stable Catalysts
Authors: Campisi Sebastiano , Bellomi Silvio , Chinchilla Lidia E. , Prati Laura , Villa Alberto 
Published: May 2022

AbstractFuran‐2,5‐dimethylcarboxylate (FDMC), along with ethylene glycol (EG), is the key monomer to produce (poly‐(ethylene‐furanoate) (PEF). Noble metal‐based catalysts can convert hydroxymethyl furfural (HMF) to FDMC in methanol through liquid phase catalytic oxidative esterification. In this work, the catalytic performance of Au, Pd and AuPd NPs supported on nanosized nickel oxide (nNiO) have been evaluated under base‐free conditions at 90 °C and 3 bar O2. Synergistic effects between Au and Pd imparted high activity and higher yield to FDMC compared to the monometallic counterparts. The role of support was also investigated by depositing AuPd NPs on TiO2 and nNiO‐TiO2. Remarkable yield to FDMC (85 % after 8 h) and high stability were observed over AuPd/ nNiO‐TiO2 catalyst. This peculiar catalytic behavior could be imputed to the formation of trimetallic AuPdNi particles offering highly active interfacial sites.
NiCo2S4 Nanocone Arrays/Phosphorus‐Doped Hollow Carbon Nanospheres for High‐Performance Supercapacitors
Authors: Ning Feng , Gao Xin , Yao Fei , Zhang Hengwei , Yu Yanfei , Xie Yanqiu , Yue Hongyan 
Published: May 2022

AbstractA soft template and hydrothermal method are used to prepare NiCo2S4 nanocone arrays/P‐doped hollow carbon nanospheres (NCS NCAs/PHCS). PHCS is loaded with a large number of vertically grown NCS NCAs on the surface due to phosphorus doping. PHCS is an excellent conductive base material and it can effectively alleviate the structural collapse of NCS NCAs during charging and discharging because of its hollow structure. NCS NCAs with lots of active sites provide fast diffusion channels and excellent electron transmission channels. The synergistic effect between NCS NCAs and PHCS causes the electrode material to show excellent electrochemical properties, such as high specific capacitance (761 C ⋅ g−1 at 1 A ⋅ g−1) and excellent cycle stability (the capacitance retention rate is 88.6 % after 10, 000 cycles at 20 A ⋅ g−1). The NCS NCAs/PHCS composite is also assembled with PHCS as an asymmetric supercapacitor. It shows a remarkable energy density of 46.5 Wh ⋅ kg−1 at the power density of 777.5 W ⋅ kg−1. These findings confirm that the NCS NCAs/PHCS composite is an excellent electrode material of supercapacitors.
Sensor Array Chip for Real‐Time Field Detection and Discrimination of Organophosphorus Neurotoxins
Authors: Kotagiri Yugender G. , Sandhu Samar S. , Morales Jose F. , Fernando P. U. Ashvin I. , Tostado Nicholas , Harvey Steven P. , Moores Lee C. , Wang Joseph 
Published: May 2022

AbstractRapid and reliable detection of organophosphorus (OP) threats is essential for facilitating efficient and timely countermeasures. This work describes the design and operation of a miniaturized electrochemical sensor array chip, based on strategic coupling of diverse MOF‐based biomimetic and biocatalytic reagent layers (offering tunable OP target specificities) with different potentiometric, voltametric, and amperometric transducers to generate information‐rich analytical data and robust discrimination power towards rapid field identification of key classes of OP threats. This uniquely integrated 4‐electrode sensor array yields rich analytical data that enables rapid and efficient discrimination of P−F‐ and P−Cl‐type OP nerve agents (NAs) and OP pesticides from coexisting environmental pollutants. The sensor array outputs lead to distinct binary codes for the target OP threats that enable their rapid digital identification. This sensor array chip thus presents a significant advance towards reliable OP threat‐sensing hand‐held devices that meet the urgent demands of different defense surveillance applications.
On the Mediated Electron Transfer of Immobilized Galactose Oxidase for Biotechnological Applications
Authors: Zhao Fangyuan , Brix Ann Cathrin , Lielpetere Anna , Schuhmann Wolfgang , Conzuelo Felipe 
Published: May 2022

AbstractInvited for the cover of this issue are Felipe Conzuelo, Wolfgang Schuhmann, and co‐workers at the Ruhr University Bochum. The image depicts the electrochemical conversion of glycerol and 5‐(hydroxymethyl)furfural with an electrode made up of galactose oxidase electrically wired with a redox polymer. Read the full text of the article at 10.1002/chem.202200868.
ThioCORMates: Tunable and Cost‐Effective Carbon Monoxide‐Releasing Molecules
Authors: DeSimone Catherine A. , Naqvi S. Lyla , Tasker Sarah Z. 
Published: May 2022

AbstractCarbon monoxide‐releasing molecules (CORMs) can offer a safer alternative to CO delivery than the use of CO gas cylinders. Upon treatment with an amine base, S‐aryl thioformates (“thioCORMates”) release CO nearly quantitatively at room temperature, a gas which can then be harnessed for carbonylative cross‐coupling, biological study, or inorganic synthesis. These bench‐stable molecules are easily synthesized from the corresponding thiophenol and can be electronically tuned to release CO at different rates‐from less than 1 min to greater than 1 h‐offering a practical alternative to existing CORM technology. Finally, isotopically labeled 13CO can be conveniently generated and used, with the thioCORMate synthesized from 13C‐formic acid.
Direct preparation of battery‐grade lithium carbonate via a nucleation–crystallization isolating process intensified by a micro‐liquid film reactor
Authors: Tan Jianghao , Wang Qi , Lin Yanjun , Xiang Xu 
Published: May 2022

AbstractWith the lithium‐ion battery industry booming, the demand for battery‐grade lithium carbonate is sharply increasing. However, it is difficult to simultaneously meet the requirements for the particle size and the purity of battery‐grade lithium carbonate. Herein, the nucleation–crystallization isolating process (NCIP) is applied to prepare battery‐grade lithium carbonate without any post‐treatment procedure. The nucleation process is intensified by a micro‐liquid film reactor (MLFR), where the feedstock solution is subject to intensive shear force and centrifugal force. The feedstock solutions are mixed rapidly and a large number of nuclei form instantly in the MLFR. After nucleation, the crystallization process is achieved in another reactor. A few new nuclei form in the crystallization process. The nucleation intensification in the MLFR is verified by computational fluid dynamics (CFD) simulations and experimental results. The particle size distribution is narrower and the impurity residue in the products is far lower than that prepared by a traditional precipitation method. The effects of nucleation and crystallization on the particle size distribution and purity were investigated. In the optimized operation parameters, the particle size distribution of the Li2CO3 product is D10 = 2.856 μm, D50 = 5.976 μm, and D90 = 11.197 μm, and the purity is 99.73%, both of which meet the requirements of battery‐grade Li2CO3. Moreover, the lithium recovery rate is increased to 88.21% compared to that prepared by a traditional precipitation method (79.0%). This work provides an alternative way for the preparation of high‐purity chemicals by process intensification.
Morphological Mapping of Hydrothermally Synthesised Nanoceria at High Ce Concentrations
Authors: Xu Yuwen , Koshy Pramod , Mofarah Sajjad S. , Sorrell Charles C. 
Published: May 2022

AbstractSynthesis methods for different nanoparticulate morphologies are of increasing importance since the morphological features determine the redox performance in many applications. However, the effects of synthesis variables on the formation of these morphologies are not well understood and previous work has been limited to relatively low [Ce] and [NaOH]. The present work reports an investigation of the morphological development of nanoceria through the examination of the key processing variables for precipitation and hydrothermal synthesis at high [Ce] and [NaOH]. Characterisation included XRD, Raman, TEM, HRTEM, SAED, XPS, and BET. The resultant refined morphological map delineates the effects of [NaOH] and temperature on the morphological evolution of ceria nanoparticles synthesised from Ce(NO3)3 aqueous solutions in terms of morphology and grain size. The data show that temperature dominates the morphology but elevated [NaOH] and temperature both increase the nanoparticle size. Compared to synthesis at low concentrations, high [Ce] also promotes grain growth, although this is secondary to the effect of [NaOH]. Significantly, the increased grain sizes also enhance the concentrations of catalytically active sites (Ce3+ and charge‐compensating oxygen vacancies). The present work provides a platform of fundamental concepts for the control of experimental variables to synthesise predictable nanoparticulate characteristics.
Amphiphilic and Zwitterionic Multi Arylpyrroles with Near‐Infrared Aggregation‐Induced Emission for Cell Membrane Imaging
Authors: Li Ziting , Cui Shisheng , Yu Jiayu , Qu Jiamin , Shi Jianbing , Tong Bin , Cai Zhengxu , Dong Yuping 
Published: May 2022

AbstractThe cell membrane protects the cell stability and balance and participates in various physiological activities as an exchange channel. Therefore, the real‐time monitoring of cell membrane biological dynamics can help us understand the physiological state of the current cell. Herein, a type of amphiphilic near infrared (NIR) aggregation‐induced emission (AIE) molecules was designed and synthesized. Multiarylpyrroles (MAPs) with a dodecyl chain at the 1‐position of the pyrrole ring, charged pyridinium sulfonate at the 2,5‐position of the pyrrole ring and free rotating aryls at the 3‐position of the pyrrole ring can target cell membranes. One of the MAPs,MAP22, had a maximum emission wavelength in the aggregation state of up to 721 nm with a large Stokes shift (∼280 nm). In addition,MAP22nanoparticles can produce reactive oxygen species (ROS) with a quantum yield of 224%. Therefore, these AIE MAPs are promising candidates for theranostic nanoagents, including NIR fluorescence imaging to target cell membranes and ablate cancer cells by producing ROS.
SPPGKM: A secure polynomial function powered group key management scheme for dynamic user environments in cloud
Authors: Manikandan S. Periasamy , Milton Ganesh Shanmugam 
Published: May 2022

AbstractIn this modern era of smart cities supported by digital locker facilities, e‐governance, e‐healthcare, e‐banking, e‐learning systems, and other digital systems, People use mobile phones to upload and share sensitive documents with others. Previous group key management schemes suffer from problems such as expensive double encryptions, the need for re‐encryption during every user leave operation and becoming vulnerable to attacks. Hence, to address these three issues, this manuscript introduces a pairing based cryptography based computationally efficient protocol powered by polynomial equations. First, to reduce computational overhead during group communication, the document is encrypted only once with minimal complexity before uploaded to cloud. Second, during a user leave or join operation, the re‐encryption of documents in cloud is avoided in the group manager side by tactically relieving the group key parameters from the polynomial parameters. Finally, the security analysis shows that the careful handling of secure parameters of users averts the collusion attack, man‐in‐the‐middle attack, message modification attacks, and all other possible attacks. The implementation results portray the capacity of this work to handle secure group communications in cloud storage.
Halo‐seq: An RNA Proximity Labeling Method for the Isolation and Analysis of Subcellular RNA Populations
Authors: Lo Hei‐Yong G. , Engel Krysta L. , Goering Raeann , Li Ying , Spitale Robert C. , Taliaferro J. Matthew 
Published: May 2022

AbstractThe subcellular localization of specific RNA molecules promotes localized cellular activity across a variety of species and cell types. The misregulation of this RNA targeting can result in developmental defects, and mutations in proteins that regulate this process are associated with multiple diseases. For the vast majority of localized RNAs, however, the mechanisms that underlie their subcellular targeting are unknown, partly due to the difficulty associated with profiling and quantifying subcellular RNA populations. To address this challenge, we developed Halo‐seq, a proximity labeling technique that can label and profile local RNA content at virtually any subcellular location. Halo‐seq relies on a HaloTag fusion protein localized to a subcellular space of interest. Through the use of a radical‐producing Halo ligand, RNAs that are near the HaloTag fusion are specifically labeled with spatial and temporal control. Labeled RNA is then specifically biotinylated in vitro via a click reaction, facilitating its purification from a bulk RNA sample using streptavidin beads. The content of the biotinylated RNA is then profiled using high‐throughput sequencing. In this article, we describe the experimental and computational procedures for Halo‐seq, including important benchmark and quality control steps. By allowing the flexible profiling of a variety of subcellular RNA populations, we envision Halo‐seq facilitating the discovery and further study of RNA localization regulatory mechanisms. © 2022 Wiley Periodicals LLC.Basic Protocol 1: Visualization of HaloTag fusion protein localizationBasic Protocol 2: In situ copper‐catalyzed cycloaddition of fluorophore via click reactionBasic Protocol 3: In vivo RNA alkynylation and extraction of total RNABasic Protocol 4: In vitro copper‐catalyzed cycloaddition of biotin via click reactionBasic Protocol 5: Assessment of RNA biotinylation by RNA dot blotBasic Protocol 6: Enrichment of biotinylated RNA using streptavidin beads and preparation of RNA‐seq libraryBasic Protocol 7: Computational analysis of Halo‐seq data
Prevalence of diagnosed eating disorders in US transgender adults and youth in insurance claims
Authors: Ferrucci Katarina A. , Lapane Kate L. , Jesdale Bill M. 
Published: May 2022

AbstractObjectiveWe estimated the prevalence of diagnosed eating disorders, overall and by select demographics, among commercially insured individuals identified as transgender in a national claims database.MethodsFrom the 2018 IBM® MarketScan® Commercial Database, there were 10,415 people identifiable as transgender based on International Classification of Disease (ICD‐10) codes and procedure codes, specific to gender‐affirming care, from inpatient and outpatient claims. Eating disorders were identified from ICD‐10 codes and included anorexia nervosa, bulimia nervosa, binge eating disorder, eating disorder not otherwise specified, avoidant restrictive feeding and intake disorder, and other specified feeding and eating disorders. We estimated the prevalence of specific eating disorders diagnoses by selecting patient characteristics.ResultsOf individuals receiving some form of gender‐affirming care, 2.43% (95% confidence interval: 2.14%–2.74%) were diagnosed with an eating disorder: 0.84% anorexia nervosa, 0.36% bulimia nervosa, 0.36% binge eating disorder, 0.15% avoidant restrictive feeding and intake disorder, 0.41% other specified feeding and eating disorders, and 1.37% with an unspecified eating disorder. Among transgender‐identifiable patients aged 12–15 years, 5.60% had an eating disorder diagnosis, whereas 0.52% had an eating disorder diagnosis in patients aged 45–64 years.DiscussionIn patients identifiable as transgender, with receipt of gender‐affirming care, the prevalence of diagnosed eating disorders was low compared to extant self‐reported data for eating disorder diagnosis in transgender individuals. Among this population, eating disorders were highest in adolescents and young adults. Clinically verified prevalence estimates for eating disorder diagnosis in transgender people with a history of gender‐affirming care warrant further investigation.Public SignificanceThe present study aims to provide clinically validated, contemporary prevalence estimates for diagnosed eating disorders among a medically affirmed population of transgender adults and children in the United States. We report low prevalence of having any eating disorder relative to prevalence estimates reported in prior literature without clinical validation. These findings may be explained by access to affirming care and medical care generally.