bluuebunny/crossref_metadata_2025_split huggingface dataset:
Optimal state filters for networked iterative learning control systems with data losses and noises
Authors: Guo Xinyang , Huang Lixun , Sun Lijun , Liu Weihua , Zhang Zhe , Zhang Qiuwen 
Published: February 2024

SummaryData losses and noises in both forward and feedback channels significantly impact the convergence of networked iterative learning control (ILC) systems. To address this issue, this article considers a class of linear time‐invariant objects controlled by proportional ILC controllers, an optimal state filter is then designed at the ILC controller side that aims to guarantee the convergence of the input transmitted by ILC controllers. First, two data transmission processes are introduced to account for the effects of data losses and noises. Second, a filtering model is established utilizing only the object information and the aforementioned data transmission processes. Third, the optimal state filter is designed on the basis of the orthogonal projection principle. This filtered state facilitates the acquisition of actual output errors, thus improving the convergence of the input transmitted by ILC controllers. Simulation results demonstrate the effectiveness of the proposed state filters.
Recent Progress of Ru Single‐Atom Catalyst: Synthesis, Modification, and Energetic Applications
Authors: Chen Wenhua , Yu Min , Liu Suli , Zhang Chunmei , Jiang Shaohua , Duan Gaigai 
Published: February 2024

AbstractIn recent years, single‐atom catalysts (SACs) have become the most active part of the catalytic field due to their excellent catalytic activity. Among them, Ru SACs exhibit excellent performance in many catalytic applications due to their high atomic utilization efficiency, catalytic activity and selectivity, and relatively low cost. In order to understand the structure–performance relationship and potential catalytic mechanism of Ru SACs, this review summarizes the research progress of Ru SACs in the fields of electrocatalytic water splitting, fuel cells, nitrogen reduction, and nitrate reduction in recent years. The catalytic process of Ru single atom in different synthesis methods and modification strategies is summarized. Finally, some opportunities and challenges for the future development of Ru SACs are prospected.
Stackable and Deployable Laser‐Induced Graphene Layers Toward the Flexible Manufacturing of Smart 3D Honeycombs with Multifunctional Performance
Authors: Gao Yan , Cao Yujie , Luo Yifan , Wang Guantao , Zhao Wei , Ding Xilun , Luo Sida 
Published: February 2024

AbstractSmart honeycombs are becoming the novel structural strategy for next‐generation devices and equipments. Unfortunately, traditional surface‐coating, structural immersing, and 3D printing approaches still face significant challenges in combining structural customization and performance multifunctionality. Herein, a brand‐new processing strategy is developed to construct graphene‐based smart honeycombs by stacking and deploying laser‐induced graphene (LIG) layers with alternatively inserted adhesives. Through tuning key parameters, various LIG‐enabled smart honeycombs (LIG‐HC) can be assembled with scalable areal dimension and thickness, variable cell sizes and shapes, as well as patternable graphene clusters. By further understanding the process‐dependent structural stability and electrical conductivity, multifunctional characteristics are systematically explored, including anisotropic mechanical, electrical, piezoresistive, and electromagnetic performance. To finally demonstrate the unique honeycomb multifunctionally applied in fields of aviation, an intelligent LIG‐HC enabled aircraft‐wing model is representatively constructed for performing anti‐/de‐icing, high‐temperature warning, flame retardancy, pressure and vibration monitoring, as well as electromagnetic shielding and stealth.
Donor‐Acceptor Truxene‐Based Porous Polymers: Synthesis, Optoelectronic Characterization and Defense‐Related Applications
Authors: Méndez‐Gil Nayara , Gámez‐Valenzuela Sergio , Echeverri Marcelo , Suyo Gary H. , Iglesias Marta , Delgado M. Carmen Ruiz , Gómez‐Lor Berta 
Published: February 2024

AbstractFour donor‐acceptor (D‐A) polymers are synthesized by combining two different electron donors (truxene and its more electron rich triaza analogue, triindole) with an electron‐deficient monomer (benzothiadiazole) through two different positions (2,7,13 or 3,8,13) and their optoelectronic properties are studied by theoretical and experimental methods. One of the polymers exhibits remarkable sensing capabilities for explosive nitraoaromatics while another demonstrated efficient photocatalytic activity in the aerobic sulfoxidation of the sulfur mustard simulant 2‐chloro‐ethyl ethyl sulfide (MGS) sulfoxidation. These results highlight their potential applications in defense‐related areas. Moreover, the structure‐performance relationships observed among the four polymers have enabled us to deepen the understanding of the mechanisms underlying the performance of these polymers in the aforementioned applications, thereby providing valuable insights to further improve their properties.
Time and Space Dual‐Blockade Strategy for Highly Invasive Nature of Triple‐Negative Breast Cancer in Enhanced Sonodynamic Therapy Based on Fe‐MOF Nanoplatforms
Authors: Cao Cheng , Lu Yi , Pan Xinni , Lin Yuwan , Fan Shanshan , Niu Jiaqi , Lin Shujing , Tan Haisong , Wang You , Cui Shengsheng , Liu Yanlei 
Published: February 2024

AbstractTriple‐negative breast cancer (TNBC), due to its high malignant degree and strong invasion ability, leads to poor prognosis and easy recurrence, so effectively curbing the invasion of TNBC is the key to obtaining the ideal therapeutic effect. Herein, a therapeutic strategy is developed that curbs high invasions of TNBC by inhibiting cell physiological activity and disrupting tumor cell structural function to achieve the time and space dual‐blockade. The time blockade is caused by the breakthrough of the tumor‐reducing blockade based on the ferroptosis process and the oxidation‐toxic free radicals generated by enhanced sonodynamic therapy (SDT). Meanwhile, alkyl radicals from 2,2′‐azobis[2‐(2‐imidazolin‐2‐yl)propane] dihydrochloride (AIPH) and 1O2 attacked the organelles of tumor cells under ultrasound (US), reducing the physiological activity of the cells. The attack of free radicals on the cytoskeleton, especially on the proteins of F‐actin and its assembly pathway, achieves precise space blockade of TNBC. The damage to the cytoskeleton and the suppression of the repair process leads to a significant decline in the ability of tumor cells to metastasize and invade other organs. In summary, the FTM@AM nanoplatforms have a highly effective killing and invasion inhibition effect on invasive TNBC mediated by ultrasound, showcasing promising clinical transformation potential.
Observation of High‐Capacity Monoclinic B‐Nb2O5 with Ultrafast Lithium Storage
Authors: Dong Wujie , Liu Zichao , Xie Miao , Chen Yongjin , Ma Wenqin , Liang Song , Bai Yuzhou , Huang Fuqiang 
Published: February 2024

AbstractApart from Li4Ti5O12, there are few anode substitutes that can be used in commercial high‐power lithium‐ion batteries. Orthorhombic T‐Nb2O5 has recently been proven to be another substitute anode. However, monoclinic B‐Nb2O5 of same chemistry is essentially inert for lithium storage, but the underlying reasons are unclear. In order to activate the “inert” B‐Nb2O5, herein, nanoporous pseudocrystals to achieve a larger specific capacity of 243 mAh g−1 than Li4Ti5O12 (theoretical capacity: 175 mAh g−1) are proposed. These pseudocrystals are rationally synthesized via a “shape‐keep” topological microcorrosion process from LiNbO3 precursor. Compared to pristine B‐Nb2O5, experimental investigations reveal that B‐Nb2O5−x delivers ≈3000 times higher electronic conductivity and tenfold enhanced Li+ diffusion coefficient. An ≈30% reduction of energy barrier for Li‐ion migration is also confirmed by the theoretical calculations. The nanoporous B‐Nb2O5−x delivers unique ion/electron transport channels to proliferate the reversible and deeper lithiation, which activate the “inert” B‐Nb2O5. The capacitive‐like behavior is observed to endow B‐Nb2O5−x ultrafast lithium storage ability, harvesting 136 mAh g−1 at 100 C and 72 mAh g−1 even at 250 C, superior to Li4Ti5O12. Pouch‐type full cells exhibit the energy density of ≈251 Wh kg−1 and ultrahigh power density up to ≈35 kW kg−1.
Linearly Interlinked Fe‐Nx‐Fe Single Atoms Catalyze High‐Rate Sodium‐Sulfur Batteries
Authors: Ruan Jiufeng , Lei Yao‐Jie , Fan Yameng , Borras Marcela Chaki , Luo Zhouxin , Yan Zichao , Johannessen Bernt , Gu Qinfen , Konstantinov Konstantin , Pang Wei Kong , Sun Wenping , Wang Jia‐Zhao , Liu Hua‐Kun , Lai Wei‐Hong , Wang Yun‐Xiao , Dou Shi‐Xue 
Published: February 2024

AbstractLinearly interlinked single atoms offer unprecedented physiochemical properties, but their synthesis for practical applications still poses significant challenges. Herein, linearly interlinked iron single‐atom catalysts that are loaded onto interconnected carbon channels as cathodic sulfur hosts for room‐temperature sodium‐sulfur batteries are presented. The interlinked iron single‐atom exhibits unique metallic iron bonds that facilitate the transfer of electrons to the sulfur cathode, thereby accelerating the reaction kinetics. Additionally, the columnated and interlinked carbon channels ensure rapid Na+ diffusion kinetics to support high‐rate battery reactions. By combining the iron atomic chains and the topological carbon channels, the resulting sulfur cathodes demonstrate effective high‐rate conversion performance while maintaining excellent stability. Remarkably, even after 5000 cycles at a current density of 10 A g−1, the Na‐S battery retains a capacity of 325 mAh g−1. This work can open a new avenue in the design of catalysts and carbon ionic channels, paving the way to achieve sustainable and high‐performance energy devices.
Near‐Zero Energy Consumption Capacitors by Controlling Inhomogeneous Polarization Configuration
Authors: Chen Liang , Hu Tengfei , Shi Xiaoming , Yu Huifen , Zhang Hao , Wu Jie , Fu Zhengqian , Qi He , Chen Jun 
Published: February 2024

AbstractTaking into account the need for energy conservation, achieving near‐zero energy loss, namely ultrahigh efficiency (η), in energy storage capacitors with large recoverable energy storage density (Wrec) plays an important role in applications, which is one of the major challenges in dielectric energy storage field. Here, guided by phase‐field simulation, inhomogeneous polarization configuration with multiple symmetries and polarization magnitudes is controlled through aliovalent strongly polar double ion design to establish a strongly disordered state. A record‐high η of ≈97.4% is realized in lead‐free relaxors with a large Wrec of ≈8.6 J cm−3, which also give a giant Wrec of ≈11.6 J cm−3 with an ultrahigh η of ≈96.1% through high‐energy ball milling, showing a breakthrough progress in ceramic capacitors with a maximum figure of merit of 330. This work demonstrates that controlling inhomogeneous polarization configuration is an effective avenue to develop new high‐performance near‐zero energy loss energy storage capacitors.
Application of Bertagnini's Salts in a Mechanochemical Approach Toward Aza‐Heterocycles and Reductive Aminations via Imine Formation
Authors: Behera Sourav , Kanti Bera Shyamal , Basoccu Francesco , Cuccu Federico , Caboni Pietro , De Luca Lidia , Porcheddu Andrea 
Published: February 2024

AbstractOur research has demonstrated that mechanochemical activation is more effective with solid reagents. We have showcased the practicality of Bertagnini's salts, also called aldehyde‐bisulfite adducts, which are crystalline, simplifying preparation and storage. These salts are stable substitutes for liquid aldehydes and ketones that have been employed in reductive amination, synthesizing aza‐heterocycles and hydrazones within mechanochemistry. The technique‘s effectiveness broadens the substrate scopes, simplifies purification, reduces reaction times, and yields the desired products ranging from 38–91%. Additionally, the thermal stability of the bisulfite adducts has been confirmed through TGA (Thermogravimetric analysis) analysis.
Advancing Breath‐Based Diagnostics: 3D Mesh SERS Sensor Via Dielectrophoretic Alignment of Solution‐Processed Au Nanoparticle‐Decorated TiO2 Nanowires
Authors: Constantinou Marios , Panteli Christoforos , Potamiti Louiza , Panayiotidis Mihalis I. , Agapiou Agapios , Christodoulou Sotirios , Andreou Chrysafis 
Published: February 2024

AbstractSurface enhanced Raman spectroscopy (SERS) is becoming an attractive analytical technique for the next generation of breath diagnostics. However, current SERS substrates present challenges related to fabrication cost, complexity, signal uniformity, and reproducibility. Here, a low‐cost, label‐free SERS sensor based on fully solution‐processed decoration of TiO2 nanowires is demonstrated (NW) with plasmonic Au nanoparticles (NP) followed by the dielectrophoretic self‐assembly into a 3D mesh with high signal to noise ratio. The sensor performance is tested using 4‐aminothiophenol (4‐ATP) as a model analyte in gas phase, at concentrations down to 10 ppbv, and in solution, with limit of detection ≈2.4 pM. Finally, to explore the sensor capability for breath‐based diagnostics, a proof‐of‐concept experiment is performed with exhaled breath condensates (EBCs). The possibility to discriminate EBCs of individuals with upper respiratory tract infection (URTI) from healthy ones is demonstrated. Multiple SERS spectra (n≈50) from each sample are analyzed using orthogonal partial least squares discriminant analysis (OPLS‐DA), which identifies spectral features representative of URTI in up to 80% of the infection‐related spectra. These results demonstrate the applicability and potential of 1D nanomaterials together with state‐of‐the‐art solution‐processed techniques for the development of low‐cost and compact SERS breath‐based diagnostic platforms for clinical point‐of‐care applications.
Hierarchically Assembled Nanofiber Scaffolds with Dual Growth Factor Gradients Promote Skin Wound Healing Through Rapid Cell Recruitment
Authors: Fan Ruyi , Zhang Chuwei , Li Fei , Li Bo , McCarthy Alec , Zhang Yi , Chen Shixuan , Zhang Lin 
Published: February 2024

AbstractTo address current challenges in effectively treating large skin defects caused by trauma in clinical medicine, the fabrication, and evaluation of a novel radially aligned nanofiber scaffold (RAS) with dual growth factor gradients is presented. These aligned nanofibers and the scaffold's spatial design provide many all‐around “highways” for cell migration from the edge of the wound to the center area. Besides, the chemotaxis induced by two growth factor gradients further promotes cell migration. Incorporating epidermal growth factor (EGF) aids in the proliferation and differentiation of basal layer cells in the epidermis, augmenting the scaffold's ability to promote epidermal regeneration. Concurrently, the scaffold‐bound vascular endothelial growth factor (VEGF) recruits vascular endothelial cells at the wound's center, resulting in angiogenesis and improving blood supply and nutrient delivery, which is critical for granulation tissue regeneration. The RAS+EGF+VEGF group demonstrates superior performance in wound immune regulation, wound closure, hair follicle regeneration, and ECM deposition and remodeling compared to other groups. This study highlights the promising potential of hierarchically assembled nanofiber scaffolds with dual growth factor gradients for wound repair and tissue regeneration applications.
Perovskite Stannate Heterojunctions for Self‐Powered Ultraviolet Photodiodes Operated in Extreme Environments
Authors: Yoon Daseob , Lee Yujeong , Kang Youngho , Son Junwoo 
Published: February 2024

AbstractHigh‐performance UV photodetectors call for sensitive and energy‐efficient signal detection in extreme environments. To satisfy the requirement of a UV detection without an external power consumption, self‐powered UV photodetectors must be realized by an optimal combination of heterostructure with maximum built‐in potential using novel wide‐bandgap materials. Here, self‐powered UV photodiodes are designed via the band engineering of a wide‐bandgap Sr(Sn,Ni)O3/BaSnO3 heterojunction for the first time. Based on the theoretical concept of acceptor doping by Ni substitution in SrSnO3, remarkably, this heterojunction with a conduction band offset of 0.94 eV shows strong nonlinear electrical characteristics with extremely low Idark (≈100 fA) owing to the spatial gradient of the potential barrier across the interfaces, outstanding photo‐to‐dark current ratio (>107 at 25 °C and > 104 at 300 °C), and high stability under various extreme conditions upon UV illumination even without external bias (V = 0 V). This study suggests a novel strategy that utilizes band engineering to maximize sensitivity and minimize energy consumption in harsh environments for UV imaging using the newly discovered wide‐bandgap semiconductors.
Are food manufacturers reducing sugar content? Evidence from scanner data
Authors: Cengiz Ezgi , Rojas Christian 
Published: February 2024

AbstractReductions in sugar intake are at the center of policy discussions to improve health. In this article, we use barcode‐level nutrition and sales data on the near‐universe of all packaged food products in the United States over 2007–2015 to investigate whether food manufacturers have reduced added sugar in their product offerings and whether these reformulations have played a role on consumers' sugar intake. We find that reformulation efforts would have reduced sugar intake by 52.8% between 2007 and 2015 had households' shopping baskets in 2015 remained the same as in 2007. However, consumers' purchases have gravitated toward more sugary products over time, thereby negating more than twothirds of the reduction in sugar intake that reformulation could have brought about. As a result, sugar intake has only decreased by 15.6%. Evidence shows that the largest reformulation effects come from product groups that have received the greatest scrutiny. Sweetened beverages, desserts, and sweets together represent 89% of pure reformulation, where sweetened beverages alone represent 43%. We also analyze the change in added sugar intake across income and find larger reductions in higher‐income households; this finding suggests that existing disparities in diet quality have become more pronounced over time [EconLit Citations: D22, I12, I18, L66].
Using Two Predictive Models to Capture Two Types of Poor Outcomes in Knee Arthroplasty: A Multisite Longitudinal Cohort Study
Authors: Riddle Daniel L. , Dumenci Levent 
Published: February 2024

ObjectivePoor outcome after knee arthroplasty (KA), a common major surgery worldwide, reportedly occurs in approximately 20% of patients. These patients demonstrate minimal improvement, at least moderate knee pain, and difficulty performing many routine daily activities. The purposes of our study were to comprehensively determine poor outcome risk after KA and to identify predictors of poor outcome.MethodsData from 565 participants with KA in the Osteoarthritis Initiative and the Multicenter Osteoarthritis studies were used. Previously validated latent class analyses (LCAs) of good versus poor outcome trajectories of Western Ontario and McMaster Universities Arthritis Index (WOMAC) Pain and Disability were generated to describe minimal improvement and poor final outcome. The modified Escobar RAND appropriateness system was used to generate classifications of appropriate, inconclusive, and rarely appropriate. Multivariable prediction models included LCA‐based good versus poor outcome, modified Escobar classifications, and evidence‐driven preoperative prognostic variables.ResultsModified Escobar appropriateness classifications were nonsignificant predictors of WOMAC Pain good versus poor outcomes, indicating the methods provide independent outcome estimates. For WOMAC Pain and WOMAC Disability, approximately 34% and 45% of participants, respectively, had a high probability of either minimal improvement via “rarely appropriate” classifications or poor outcome via LCA. In multivariable prediction models, greater contralateral knee pain consistently predicted poor outcome (eg, odds ratio 1.21, 95% confidence interval 1.10–1.33).ConclusionAppropriateness criteria and LCA estimates provided combined poor outcome estimates that were approximately double the commonly reported poor outcome of 20%. Rates of poor outcome could be reduced if clinicians screened patients using appropriateness criteria and LCA predictors before surgery to optimize outcome.image
A control scheme for interval type‐2 T‐S fuzzy systems at constrained bit rates: A coding and decoding scheme
Authors: Yan Tingli , Zhang Sunjie , Yu Ying 
Published: February 2024

SummaryThis study focuses on a class of interval type‐2 T‐S fuzzy systems under bit rate constraint(BRC), which can adapt to complex systems more flexibly than the traditional interval type‐1 T‐S fuzzy model. In order to guarantee the security of data transmission, and considering that the channel is affected by the bit rate during transmission, this study introduces a codec scheme in the interval type‐2 T‐S fuzzy system and applies it to the channel from the sensor to the controller. With the support of the codec scheme, this study explores the sufficient conditions to satisfy the data recoverability, and based on the satisfaction of these conditions, the system is proposed to satisfy the sufficient conditions for input‐to‐state stability (ISS) and the controller gain. Through the in‐depth analysis in this paper, this study proposes a control scheme that can fit complex systems more accurately and also confirms the importance of considering bit rate constraints in communication systems. Finally, the paper is validated by simulation with two specific examples, which fully demonstrate the superiority and effectiveness of the proposed control scheme.
Demonstration of a robust high cell density transient CHO platform yielding mAb titers of up to 2 g/L without medium exchange
Authors: Wu Rigumula , Kahl Danielle M. , Kloberdanz Ronald , Rohilla Kushal J. , Balasubramanian Sowmya 
Published: February 2024

AbstractBiopharmaceuticals like therapeutic monoclonal antibodies (mAbs) and other derived proteins are popular for treating various diseases. Transient gene expression (TGE) is typically used as a fast yet efficient method to generate moderate amounts of material. It has been used to support early stage research and discovery processes. Introduction of a robust high yielding and predictive TGE platform in Chinese hamster ovary (CHO) is crucial. It maintains the consistency in cell lines and processes throughout the early drug discovery and downstream manufacturing processes. This helps researchers to identify the issues at an early stage for timely resolution. In this study, we have demonstrated a simple high‐titer platform for TGE in CHO based on a dilution process of seeding cells. We achieved titers ranging from 0.8 to 1.9 g/L for eight model mAbs at three scales (1, 30, 100 mL) in 10 days using our new platform. The ability to seed by dilution significantly streamlined the process and dramatically enhanced platform throughput. We observed a modest reduction in titer ranging from 11% to 28% when cells were seeded using dilution compared to when cells were seeded using medium exchange. Further studies revealed that carry over of spent medium into transfection negatively affected the DNA uptake and transcription processes, while the translation and secretion was minimally impacted. In summary, our transient CHO platform using cells prepared by dilution at high densities can achieve high titers of up to 1.9 g/L, which can be further improved by targeting the bottlenecks of transfection and transcription.