Synergetic System Research Articles

Системно-синергетический анализ и синтез управляемого процесса резания

Currently, good progress has been produced in the creation of machine tools with CNC computer systems. They are able to ensure the coincidence of program and the trajectories of the actuators with high accuracy. But when manufacturing parts with the same accuracy it becomes possible in rare circumstances. This is because of the necessity to take into account the entire controlled dynamic cutting system when manufacturing parts, while the quality of the part depends on various physical interactions under process work. In contrast to the well-known research and development, the paper focuses on the fact that the modeling level is based on a system-synergetic representation, which includes the procedure of expansion – compression of the state space. The system takes into account elastic deformations of its elements, evolutionary changes in their properties, uncontrollable disturbances, revealing physical interactions. This is a complex system, where its individual coordinates of the state depend on programmable trajectories first of all, secondly, they are characterized by internal connections and self-organization, and finally, they affect the output properties of cutting. The output properties include parts quality parameters and specified costs for parts manufacture. The article describes the main provisions of the synergetic system analysis and synthesis of a dynamic cutting system control, provides its mathematical modeling, views a simple procedure for analyzing and synthesizing a model. The example of practical application has been also observed.

A Sustainable Recycling Route from Spent Sulfuric Acid Catalysts to Vanadium Pentoxide Precursor for the Production of Low‐Cost Na3V2(PO4)3@C Na‐Ion Batteries

AbstractThe extraction of vanadium from spent industrial catalysts is a widely practiced process globally due to the large quantities of material available with appreciable vanadium content. However, some of these spent catalysts are unresponsive to established extraction methods because they have different properties. Therefore, separate studies are necessary to deal with specific cases. This work demonstrates how the leaching step can limit the recovery of vanadium to the solution before the coprecipitation step. The NH4Cl‐H2SO4 synergetic system achieved a high vanadium leaching rate of up to 95 %, resulting in the preparation of high‐purity NH4VO3 with 75.45 % V2O5 content. This demonstrates the potential of the prepared V2O5 as a precursor for vanadium materials used in sodium‐ion batteries, allowing for the adjustment of the valence of vanadium. The Na3V2(PO4)3@C particles exhibit a discharge capacity of 110 mAh g−1 at a current density of 0.1 C and 90 mAh g−1 at 1 C. The synergistic leaching system provides a sustainable method for the recovery and reuse of vanadium from spent vanadium catalysts. This contributes to recycling efforts and the development of sodium‐ion batteries.

Experimental investigation on heating performance of long- and short-term PCM storage in Chinese solar greenhouse

Phase change material (PCM) board on north wall of the greenhouses can absorb and store solar heat during the daytime, then releases it at night to provide the thermal environment for crop growth. However, its capability to regulate the greenhouse temperatures in severe winter is limited, necessitating an additional heat source. The heat gap within the greenhouse can be replenished flexibly and promptly by controllable triggering of supercooled salt hydrate for long-term heat storage. This study proposed a synergetic energy storage and release system, combining the short-term storage and passive release of the PCM wallboard with the long-term storage and active triggering solidification of the supercooled salt hydrate in separate storage unit. The temperature regulation effect of this synergetic system was experimentally investigated in a test Chinese greenhouse. The results showed that the combination of the PCM north wallboard with the supercooled salt hydrate storage unit reduced the daytime average temperature by 2.0 °C ~ 3.8 °C compared with the control greenhouse. In sunny days, the PCM north wallboard could meet the nighttime heat demand of the greenhouse with the average temperature rise of 5.2 °C ~ 6.7 °C. In severe weather, by triggering supercooled sodium acetate trihydrate (SAT, CH3COONa·3H2O, Tm = 58.0 °C) at late night, the temperature rose by 5.3 °C in 1 h, effectively heating for 5 h. While supercooled sodium thiosulfate pentahydrate (STP, Na2S2O3·5H2O, Tm = 48.5 °C) was triggered, the temperature rose by 3.3 °C in 1 h, effectively heating for 4 h. Furthermore, the synergetic system was still effective for greenhouses under ventilation and irrigation conditions during the day. This study provides guidance for the development of synergetic PCM systems with long- and short-term solar thermal storage and release for greenhouse heating.

Gold nanoparticles decorated hydrogen-bonded organic frameworks (HOFs) as self-cleaning SERS substrates

The development of efficient trace sensing and green photodegradation synergetic system for antibiotics has become increasingly significant in ecological environmental risk prevention. Herein, a recyclable self-cleaning surface-enhanced Raman scattering (SERS) hybrid system was developed by in-situ deposition of gold nanoparticles (Au NPs) on hydrogen-bonded organic framework (HOF) nanorods. The hybrid system possessed excellent trace SERS detection performance (10−13 M for rhodamine 6G), attributed to the considerable molecular enrichment capacity of HOFs and the intense local surface plasmon resonance (LSPR) effect of Au NPs. The hot-electron transfer pathway activated by the deposition of Au NPs extremely inhibited the hot carrier recombination and therefore induced a self-cleaning capacity of the hybrid system. Notably, the Au NPs decorated HOFs accomplished trace SERS sensing (10−10 M) for ciprofloxacin with good self-cleaning and reusable capabilities. This work provides a new material construction strategy for the reusable trace monitoring and green removal of antibiotics, possessed with an enormous application potential in ecological environmental risk prevention.

Enhanced Cr(VI) removal and stabilization from bioleached wastewater by zero-valent iron coupled with hetero and autotrophic bacteria

Zero-valent iron (Fe0) usually suffers from organic acid complexation and ferrochrome layer passivation in Cr(VI) removal from bioleached wastewater of Cr slag. In this work, a synergetic system combined Fe0 and mixed hetero/autotrophic bacteria was established to reduce and stabilize Cr(VI) from bioleached wastewater. Due to bacterial consumption of organic acid and hydrogen, severe iron corrosion and structured-Fe(II) mineral generation (e.g., magnetite and green rust) occurred on biotic Fe0 surface in terms of solid-phase characterization, which was crucial for Cr(VI) adsorption and reduction. Therefore, compared with the abiotic Fe0 system, this integrated system exhibited a 6.1-fold increase in Cr(VI) removal, with heterotrophic reduction contributing 3.4-fold and abiotic part promoted by hydrogen-autotrophic bacteria enhancing 2.7-fold. After reaction, the Cr valence distribution and X-ray photoelectron spectroscopy indicated that most Cr(VI) was converted into immobilized products such as FexCr1-x(OH)3, Cr2O3, and FeCr2O4 by biotic Fe0. Reoxidation experiment revealed that these products exhibited superior stability to the immobilized products generated by Fe0 or bacteria. Additionally, organic acid concentration and Fe0 dosage showed significantly positive correlation with Cr(VI) removal within the range of biological adaptation, which emphasized that heterotrophic and autotrophic bacteria acted essential roles in Cr(VI) removal. This work highlighted the enhanced effect of heterotrophic and autotrophic activities on Cr(VI) reduction and stabilization by Fe0 and offered a promising approach for bioleached wastewater treatment.

Gender and Education: Their Role in the Zipfian Distribution of Speech Acts

ABSTRACT Speech acts, as basic communication units in pragmatics, are highly correlated to speakers’ communicative intentions. It is a worthwhile goal to explore whether they obey some linguistic laws that reflect people’s cognitive mechanisms, e.g. Zipf’s Law. However, few studies have examined whether the Zipf distribution can capture the frequencies of speech acts, and whether the parameters of it can show how speakers’ attributes (e.g. gender and education level) relate to the use of speech acts. As a preliminary attempt to bridge this gap, the current study finds from the data sample of the Switchboard Dialog Act Corpus that: (1) the Zipf distribution well captures the distribution of speech acts; (2) the parameter a can distinguish the dialogs between speakers of different genders, and it shows a regularity of the highest frequency of an SA in a dialigue to some degree; (3) the parameter b can differentiate speakers of different education levels – people with college-level education may have higher expressivity of SAs compared with those with higher-than-college-level education. This study shows that Zipf’s Law can be extended to the analysis of pragmatic phenomena, which may become part of the synergetic system of language through the approach of Quantitative Linguistics.

Multifunctional baicalin nanoparticles inhibit tumor cell growth and activate RAW264.7 macrophages

Materpaials-based drug delivery systems can enhance the effect of cancer treatment by improving chemotherapy and immunomodulation. Recent research revealed that Baicalin（BA）have good immunomodulatory activity and anti-tumor effect. Here, a pH-sensitive tumor-targeting delivery system for Baicalin (BA-LP-PEOz) was constructed using DSPE-PEOz for pH sensitization. This preparation method was conducted using three single-factor experiments. Response surface Box-Behnken (BBD) design was used to optimize the factor levels. Our results showed that BA-LP-PEOz had synergistic capacity of inhibiting tumor cell (HepG2，4T1 and A549) growth and activating macrophages (RAW264.7). Further mechanistic studies revealed that BA-LP-PEOz can activate RAW264.7 by affecting the NF-κB signaling pathway. We expect that the improved efficacy of the synergetic system provides a prospective strategy for cancer therapy.

Computational model of the spatiotemporal synergetic system dynamics of calcium, IP3 and dopamine in neuron cells

Computational model of the spatiotemporal synergetic system dynamics of calcium, IP3 and dopamine in neuron cells

3D-TNAs/N-TiO2 photoanode assisted heterogeneous electro-Fenton with a novel Fe-MOFs@CF cathode for efficient synergetic oxidation of organic contaminants

Photoelectro-catalysis (PEC) and heterogeneous electro-Fenton (HEF) reactions are two frontier research fields for real effluent treatments. In the present work, a synergetic system with integration of both PEC and HEF has been developed for pollutant removal. PEC process with lower external bias results in the efficient separation of photogenerated hole and electrons, which can also modulate the HEF catalytic performance at the counter electrode, and in other cases the active HEF reaction can in turn affect the intrinsic activity of PEC. In this system, three dimensional TiO2 nanotube arrays coupled with nitrogen doped TiO2 nanoparticles (3D-TNAs/N-TiO2) was prepared as photoanode for solar light-driven PEC process while NH2-MIL-101 loaded on carbon felt (Fe-MOFs@CF) have been used as the cathode for HEF reaction. The performances of the synergetic system showed much higher degradation efficiency, which were evaluated by degrading typical organic containments in water (with the best of∼95 % in 5 min with 2*3 cm2 electrode area). The reaction rate in the coupling system were ∼7.25 and 1.18 times higher than single PEC or HEF with a wide pH applied range, well recycled and good stability for further application in water purification.

Remediation of water contamination using a synergetic system of biochar and photocatalyst: Complete mineralization in simulated real condition

Remediation of water contamination using a synergetic system of biochar and photocatalyst: Complete mineralization in simulated real condition

Intestinal-specific oral delivery of lactoferrin with alginate-based composite and hybrid CaCO3-hydrogel beads

Sodium alginate hydrogel beads and sodium alginate/gellan gum composite hydrogel beads crosslinked by calcium chloride were prepared with different alginate concentrations (3–20 mg·mL−1). Additionally, a simple method for growing CaCO3in situ on the hydrogel to create novel inorganic-organic hybrid hydrogel beads was presented. FT-IR analysis revealed the involvement of hydrogen bonding and electrostatic interactions in bead formation. Swelling behavior in acidic conditions showed a maximum of 13 g/g for composite hydrogels and CaCO3-incorporated hybrid hydrogels. Lactoferrin encapsulation efficiency within these hydrogels ranged from 44.9 to 56.6%. In vitro release experiments demonstrated that these hydrogel beads withstand harsh gastric environments with <16% cumulative release of lactoferrin, achieving controlled release in intestinal surroundings. While composite sodium alginate/gellan gum beads exhibited slower gastrointestinal lactoferrin digestion, facile synthesis and pH responsiveness of CaCO3-incorporated hybrid hydrogel also provide new possibilities for future studies to construct a novel inorganic-organic synergetic system for intestinal-specific oral delivery.

Zipf’s Law for Speech Acts in Spoken English

ABSTRACT We, the Editors and Publisher of the Journal of Quantitative Linguistics, have retracted the following article: Zipf’s Law for Speech Acts in Spoken English by Da Qi and Hua Wang (DOI: 10.1080/09296174.2023.2202470). Since publication, concerns have been raised about the fact there is significant overlap in the discussion section and references of this article with the following article, published in Springer’s Psychonomic Bulletin & Review: Zipf’s Law Revisited: Spoken Dialog, Linguistic Units, Parameters, and the Principle of Least Effort, by Guido M. Linders and Max M. Louwerse (DOI: 10.3758/s13423-022-02142-9). This overlap has been verified by the journal Editorial team and as this is a breach of our Editorial Policies, we are retracting the article from the journal. However, given the originality of the authors’ core research idea is not in doubt, we have given the authors the option to submit a revised version of their article. The authors have been informed of this and they have agreed to retract the article. We have been informed in our decision-making by our policy on publishing ethics and integrity and the COPE guidelines on retractions. The retracted article will remain online to maintain the scholarly record, but it will be digitally watermarked on each page as ‘Retracted’.

An ingestible near-infrared fluorescence capsule endoscopy for specific gastrointestinal diagnoses

Early diagnosis of gastrointestinal (GI) diseases is important to effectively prevent carcinogenesis. Capsule endoscopy (CE) can address the pain caused by wired endoscopy in GI diagnosis. However, existing CE approaches have difficulty effectively diagnosing lesions that do not exhibit obvious morphological changes. In addition, the current CE cannot achieve wireless energy supply and attitude control at the same time. Here, we successfully developed a novel near-infrared fluorescence capsule endoscopy (NIFCE) that can stimulate and capture near-infrared (NIR) fluorescence images to specifically identify subtle mucosal microlesions and submucosal lesions while capturing conventional white light (WL) images to detect lesions with significant morphological changes. Furthermore, we constructed the first synergetic system that simultaneously enables multi-attitude control in NIFCE and supplies long-term power, thus addressing the issue of excessive power consumption caused by the NIFCE emitting near-infrared light (NIRL). We performed in vivo experiments to verify that the NIFCE can specifically "light up" tumors while sparing normal tissues by synergizing with probes actively aggregated in tumors, thus realizing specific detection and penetration. The prototype NIFCE system represents a significant step forward in the field of CE and shows great potential in efficiently achieving early targeted diagnosis of various GI diseases.

SYNERGISTIC POSSIBILITIES OF LANGUAGE RESEARCH

As it is known, in accordance with the paradigmatic prism, the formation and development of linguistics as a science for a number of years have traditionally been correlated with comparative-historical, system-structural directions. It should be noted that in recent years, language and speech have been considered in aspects of anthropocentrism. The transition of general scientific evolution to a synergetic platform requires a different methodology for studying linguistic objects. In world linguistics, the methodological possibilities of synergetics are actively used for linguistic research, attempts are being made to interpret language and its sublevels (phonetics, word formation, lexicology, syntax, text, discourse, translation studies, etc.) as a synergetic, self-organizing, complex system in which it is constantly in dynamics. As a result of scientific research, a new direction of linguistics was formed – language synergetics / linguosynergetics. Language synergetics / linguosynergetics is a methodological platform for analyzing and modeling the evolution, development, open nature of the national language, and dynamic processes in it. As a new scientific direction, the synergetics of language allows Kazakh linguistics to develop in accordance with the scientific trends of world linguistics. The article analyzes the formation of a synergetic trend in world linguistics, the first searches and results in order to substantiate the concept of "language is a synergetic system".

THE STYLE OF THE MODERN GERMAN FABLE ON THE EXAMPLE OF THE FABLE TEXTS AND THE FABLE CONCEPT BY V. LIEBHEN (IN THE LINGUISTIC SYNERGETIC ASPECT)

The article carries out a systematic analysis of the fable texts and the theoretical concepts of the fable, which belong to the famous German fabulist and theoretician of the fable, parable, and joke, Wilfried Liebchen. It was been proven that his fables and concepts are included in the general evolutionary-synergistic model of the development of the fiction genre, which was developed by the Ukrainian school of linguistic synergetics. The article presents and explains the main principles that, according to V. Liebhen, determine the existence and productivity of the fable genre. These are the principles of cognition, purpose and goal. The specifics of the components of the cognition principle are described in the fable, although, of course, every other literary genre is formed according to this principle in its own way. It is also noted that the principle of purpose in the specifics of the fable genre is the requirement of a visual illustration of a complex social phenomenon, a sociocultural factor that is easily generalizable. V. Liebhen opposes the limitations of the stylistic possibilities of the fable. Contrary to Lessing, V. Liebhen recognizes the productivity of not only the Aesopian (rhetorical) fable, but also the epic one. An analysis and evaluation of V. Liebhen fables and their role in the fable evolution of the 20th and early 21st centuries is provided. The stylistics and composition of fables of this period and ways of expressing meaning are analyzed; at the same time, it is noted that the modern fable achieves the fulfillment of the principles of its existence by other means than the fables of previous eras. In particular, in the fables of the 20th and 21st centuries, an unfinished image-symbol, a hierarchical plot appears. This creates prerequisites for a comprehensive perception of the idea of a fable by the reader. According to our observations, the modern fable reflects the realities due to its deep synergetic nature. Namely, it contains deep contradictions in its structure and meaning, which it creatively resolves, and also depends during its formation on attractors, which can be classified into separate groups (social, thematic, stylistic). So, the modern fable is a synergetic system. The conducted research is a contribution to the general synergetic theory of fiction style and to stylistic synergetics.

Comparative Analysis of Volatile Organic Compound Purification Techniques in Complex Cooking Emissions: Adsorption, Photocatalysis and Combined Systems.

Volatile organic compounds (VOCs) are molecules present in our everyday life, and they can be positive, such as in the formation of odour and food flavour, or harmful to the environment and humans, and research is focusing on limiting their emissions. Various methods have been used to achieve this purpose. Firstly, we review three main degradation methods: activated carbon, photocatalysis and a synergetic system. We provide a general overview of the operative conditions and report the possibility of VOC abatement during cooking. Within the literature, none of these systems has ever been tested in the presence of complex matrices, such as during cooking processes. The aim of this study is to compare the three methods in order to understand the behaviour of filter systems in the case of realistically complex gas mixtures. Proton transfer reaction-mass spectrometry (PTR-MS) has been used in the real-time monitoring of volatilome. Due to the fact that VOC emissions are highly dependent on the composition of the food cooked, we evaluated the degradation capacity of the three systems for different burger types (meat, greens, and fish). We demonstrate the pros and cons of photocatalysis and adsorption and how a combined approach can mitigate the drawbacks of photocatalysis.

Light-Driven Photocatalytic-Photothermal Synergetic System for Portable and Sensitive Nucleic Acid Quantification.

Photosensitizers and photothermal agents have attracted increasing attention for in vitro diagnosis, but the combination remains challenging. Herein, a light-driven photocatalytic-photothermal synergetic system integrated microfluidic distance-based analytical device (PCPT-μDAD) for visual, portable, sensitive, and quantitative detection of targets was developed. Target DNA was recognized and initiated the hybridization chain reaction to form a double-stranded DNA/SYBR Green I (dsDNA/SG-I) complex. By applying the photosensitization of the dsDNA/SG-I complex and the photothermal effect of oxidized 3,3',5,5'-tetramethylbenzidine, the target concentration can effectively translate into a visual distance signal readout. Importantly, the light-driven PCPT-μDAD greatly improves the controllability of catalytic reactions and signal amplification efficiency. The light-driven PCPT-μDAD shows a low limit of detection (fM level), good stability, and high reproducibility for nucleic acid detection.

High-efficient degradation of ibuprofen as typical PPCP through a novel electrochemical approach of traditional peroxone method

An electrogenerated peroxone process was innovatively structured to effectively degrade the antiphlogistic ibuprofen (IBU) representing typical refractory pharmaceutical. The process involved electrogenerated O3 from H2O oxidation using a Ti mesh/SnO2-F anode in membrane electrode assembly (MEA) and electrogenerated H2O2 from O2 reduction using a carbon-polytetrafluoroethylene (C/PTFE) cathode. The synergetic system of H2O2 and O3 formed in situ could generate hydroxyl radical (OH) to achieve IBU degradation and total organic carbon (TOC) removal. The effects of current density, aqueous initial pH, and coexisting anions on IBU removal efficiencies were investigated and then optimized as 30 mA/cm2 and neutral condition. As a result, IBU decomposition and TOC mineralization could be finished after 10 min and 120 min electrolysis, respectively. The stability of the synergetic system combining MEA with C/PTFE-O2 was also evaluated and confirmed through multiple cycles of electrogenerated peroxone based on TOC removal efficiency. In addition, IBU degradation pathways were proposed according to the identification of intermediates (e.g. hydroxylated IBU, phenolics, and carboxylic acids) by HPLC-MS/MS. These results manifested that this synergetic system is a promising technology to remove aqueous recalcitrant pharmaceuticals.

Tungsten disulfide particles driving ferric ions reduction for the enhancement of calcium peroxide fenton-like reaction

The conventional Fenton method is confined to the inefficient Fe3+/Fe2+ cycle in narrow pH range and disproportionation of H2O2. Herein, we utilized powder tungsten disulfide (WS2) as an assistant catalyst to improve high-low valent iron circulation, and calcium peroxide (CaO2) was used to replace H2O2, thus enhanced the oxidization of typical antibiotic metronidazole (MTZ) in water. The degradation ratio of MTZ achieved 94.3 % after 10 min in the system of WS2/Fe3+/CaO2 with optimum conditions (2 mmol/L CaO2, 1.5 mmol/L Fe3+, 1.5 g/L WS2 and initial pH 7), and the reaction rate constants of two stages (quick and slow) were both higher than that of Fe3+/CaO2. Even after five cycles, more than 80 % of MTZ was still degraded, indicating a benign stability of WS2. And the synergetic system could perform quite well within the wide pH range (3–11). X-ray photoelectron spectroscopy analysis suggested that unsaturated S on the exterior of WS2 exposed reductive W4+, thereby promoting the reduction of Fe3+ and H2O2 decomposition. Hydroxyl radicals (⋅OH) was confirmed as the predominant reactive oxygen species (ROS) through electron paramagnetic resonance and quenching tests, which also certified that the addition of WS2 could accelerate ROS production. The degradation intermediates of MTZ were identified by mass spectrometry, and their biotoxicities were evaluated through computational toxicology software. The proposed WS2/Fe3+/CaO2 process exhibited good performance in different water matrix and real waterbodies, proving a promising potential for improved Fenton technology.

Synergetic performance of gas turbine combined cycle unit with inlet cooled by quasi-isobaric ACAES exhaust

Gas power generation units are challenged with peak regulation in the new power system characterized by high proportion of renewables. In aim to enhance the part-load performance and the peak-regulation capacity of gas turbine combined cycle (GTCC) power units, a synergetic power system of GTCC integrated by an isobaric and adiabatic compressed air energy storage (IACAES) was proposed, where the compressor inlet air in the gas turbine was directly mixed and cooled by the ACAES exhaust. Based on the demand load distribution of a GTCC unit and the off-design performance, the parameters of the IACAES were designed for the proposed synergetic system (SS), and comparatively for the benchmark integrated system (BS) without compressor inlet cooling. The peak-regulation performances of the proposed synergetic system were investigated and compared with those of the standalone GTCC as well as the benchmark system. The case study in a 67.3 MW GTCC indicates that, in the range of the ambient temperature from 283.15 to 308.15 K, the GTCC operative efficiency considerably enhances by averagely 0.943% resulting from the power shifting. The IACAES discharging power and roundtrip efficiency in SS are 10.5% lower than those in BS. An average negative gap of system efficiency in SS reaches 0.199% versus BS. However, GTCC inlet cooling by IACAES exhaust enhances the power capacity of the unit averagely by 1330.88 kW, and the peak-regulation capacity increases averagely by 10.59% compared to that in the standalone GTCC. The peak-regulation capacity enhances by 1.98% versus BS. The synergetic cooling effect weakens with the reduction in the ambient temperature and the charging air pressure.