Principles Of Composition Research Articles

油莎豆联合收获机用脱粒清选装置设计与试验

In response to the challenges of difficult separation and incomplete cleaning during the mechanized harvesting of Cyperus esculentus L., a combined threshing and cleaning device consisting of a fruit-picking roller, a cleaning belt, and an air-screening system was designed. The structure and working principle of this device were explained, and the main components and operating parameters were determined through theoretical analysis. Using fruit-picking roller speed, cleaning belt angle, and fan speed as evaluation indicators, a three-factor three-level field experiment was conducted based on the Box-Behnken central composite design principle. Regression models between loss rate, impurity rate, and significant factors were established, and the optimal working parameters were determined using regression equations. The results showed that when the fruit-picking roller speed was 543.7 r/min, the cleaning belt angle was 50.3°, and the fan speed was 532.4 r/min, the loss rate of sesame seed harvesting was 2.67%, and the impurity rate was 2.49%. The results of field validation experiments indicated that the average loss rate of the combined threshing and cleaning device under the optimal parameter combination was 2.88%, and the average impurity rate was 2.41%, which were consistent with the optimization results of the regression model and fully met the requirements of mechanized sesame seed harvesting production.

“Lunar New Year” by A. Parkau: cultural memory

This article considers the Russian émigré literature in China in the aspect of implementing the principles of intercultural communication and interaction between the cultures of Russia and China. Scholars began to study it in the 1990s, and currently the work of many Russian writers from Harbin and Shanghai remains unexplored. Features of the interaction of national traditions are analyzed in the poem “Lunar New Year” (Chinese New Year) by the poet of the Russian diaspora — A. Parkau, published in the poetic book Unquenchable Fire. Her artistic world still is not in the focus of the scholars. The poem “Lunar New Year,” included in the Bitter Paths cycle, is the artistic description of the Chinese holiday. Its content is determined by Chinese culture, and its artistic form is determined by the Russian poetic tradition. The article traces the connections of the poem with Chinese culture and philosophy, on the one hand, and with the contexts of the Russian poetry of the 19th century, expressed in poetic meters, on the other. The authors of the article examine the compositional and semantic principles of organizing a book of poems and come to the conclusion that the analyzed poem is included simultaneously in several cycles — calendar, reflecting the life of nature, and social, expressing the existential ideas of emigrants, expressed with the motives of loneliness, and fear of death, among others.

Aesthetic Composition in Ansel Adams' Photography

Photography is the art and practice of capturing images or recording pictures using camera devices to create visual beauty for its audience. One of the most beloved genres of photography is landscape photography, documenting the natural beauty of a place so that it can be retold through visual communication. Ansel Adams is a world-renowned photographer and vocal environmental activist, whose work has become iconic in the world of photography in discussing the importance of preserving the natural beauty of the world. This study aims to explore and analyze the aesthetics of visual composition in Ansel Adams' photographic works. The main focus will be on how Adams utilizes the basic principles of visual composition. Using a qualitative descriptive method approach, this research analyzes Ansel Adams' legendary photographic works, exploring how aesthetics and visual composition can form a language of visual communication in photography for the general audience.

Studies on effect of failure modes on mechanical properties of staggered composites

Biological materials such as bone, nacre, antler, and teeth are gifted with excellent mechanical properties that have inspired the development of synthetic composites. These superior properties are attributed to the geometrical as well as the material properties of the constituents at a small scale. This paper is focused on the influence of failure modes over the mechanical properties including stiffness, strength, and toughness, after the failure of different interfaces in staggered bio-inspired structures such as regular and stairwise staggered arrangements where stiff platelets are embedded in a pliant matrix. In order to find these properties, this article develops a novel analytical model for stress transfer and effective Young’s modulus of a stairwise staggered composite based on composite micro-mechanics principles. The results indicate that the failure sequence indeed influences mechanical characteristics such as stiffness, strength, and toughness. Also, the results from the present study is capable of quantifying the major contribution of toughness that is obtained from the vertical interface failure, which is ignored in previous studies for estimating the toughness. The results indicate that a toughness contribution as high as 56% from the inclusion of the first failure can be obtained in a stairwise staggered composite. The influence of significant parameters like Young’s moduli ratio between the platelet and matrix ( Ep/Em ) over the strength at different modes of failure showed that the strength at first and second failures increases as the Ep/Em ratio increases. The findings of this study hold significant potential for predicting the failure sequences with their quantified contributions towards the mechanical properties of a bio-inspired staggered composite.

Composition Methods of the Soviet Architectural Avant-Garde

This paper explores the composition logic of the creativity of the Avant-garde masters and to identify the principles of the composition language of the architecture of modernism.To characterize the composition language of Avant-garde architecture, systemic, historical-genetic and semiotic methods of research are used. Architectural composition is interpreted as an activity that has its own semantic, morphological and syntactic features. In the example of Svoboda Square (the former Dzerzhinsky Square) in Kharkiv, the logical methods of artistic activity and thinking of the architects of the Soviet Avant-garde of the 1920-1930s are studied.At the beginning of the 20th century avant-garde movements were created artificially, consciously, by an act of will, and they strove to dictate their ideas, concepts and principles as universal and general. The architectural language of the Avant-garde is normative, ascetic and rigidly organized. Distinctive features of the artistic movements of the Avant-garde are the deep analyticity of thinking and the normativity of the declared requirements, abstract concepts and symbols. The logical principles of composition are often repeated thanks to stable semantic associations and are reflected in geometric structures and forms. Thus, the methods of compositional thinking of the Avant-garde form a monological system, i.e. they are internally holistic and normative, not allowing alternatives. It was possible to identify and show that the Avant-garde, as a monological language system, is characterized by the following features: internal integrity, self-sufficiency, normativity; stability of figurative language devices; restriction of freedom of artistic expression with the help of a concept, declaration, slogan, clear conceptual system.Researchers and designers should treat the phenomenon under study not as a “closed”, stylistically defined object, but see it as a complex historical process of structure formation based on an even more complex process of development of thinking and activity of architects and builders of a particular period.

3D printable strong and tough composite organo-hydrogels inspired by natural hierarchical composite design principles

Fabrication of composite hydrogels can effectively enhance the mechanical and functional properties of conventional hydrogels. While ceramic reinforcement is common in many hard biological tissues, ceramic-reinforced hydrogels lack a similar natural prototype for bioinspiration. This raises a key question: How can we still attain bioinspired mechanical mechanisms in composite hydrogels without mimicking a specific composition and structure? ing the hierarchical composite design principles of natural materials, this study proposes a hierarchical fabrication strategy for ceramic-reinforced organo-hydrogels, featuring (1) aligned ceramic platelets through direct-ink-write printing, (2) poly(vinyl alcohol) organo-hydrogel matrix reinforced by solution substitution, and (3) silane-treated platelet-matrix interfaces. Unit filaments are further printed into a selection of bioinspired macro-architectures, leading to high stiffness, strength, and toughness (fracture energy up to 31.1 kJ/m2), achieved through synergistic multi-scale energy dissipation. The materials also exhibit wide operation tolerance and electrical conductivity for flexible electronics in mechanically demanding conditions. Hence, this study demonstrates a model strategy that extends the fundamental design principles of natural materials to fabricate composite hydrogels with synergistic mechanical and functional enhancement.

Softeners doped with asphaltene dispersants acting in synergy with resins: Molecular mechanisms underlying asphalt rejuvenation

In confronting the global climate change, reusing waste asphalt materials stands out as a key strategy for the transportation sector to preserve natural resources and reduce the carbon footprint. Recycling additives or rejuvenators are usually required in this practice, especially for boosting the recycling rate. Given the imperative need for a general compositional design principle of rejuvenators, we previously proposed an innovative formulation concept by combining softeners with asphaltene dispersants, and reported that the use of dispersants largely reduced the total quantity of rejuvenators needed and thus would minimize the environmental impacts. The present study is aimed for probing the molecular mechanisms underlying this observation, with additional interest focused on the synergistic effect of the dispersants with resins and also on the impacts due to their self-association. Selection of representative materials consisted of three types of dispersants including an ionic liquid, a phenolic amphiphile, and an ester plasticizer, in combination with an aromatic oil as the softener. Long-time molecular dynamics (MD) simulation was employed to inspect the aggregation of asphaltenes. Quantum chemical (QC) computation was performed to provide insights into the source of different dispersing behaviors. The results indicated that the three dispersants all acted in concert with resins in dispersing asphaltenes. The dispersion characteristics of asphaltenes could be viewed as a net result of the two competing mechanisms of the dispersing capability and self-association of the dispersant used. The ionic liquid exhibited much higher propensity to self-association at increasing concentrations than the phenolic dispersant, and yet the optimum performance was achieved for both when they were added at low dosages. The ester plasticizer showed minimal self-association and yielded improved dispersion with increasing concentrations. In all cases, the dispersing functionality mainly originated from the presence or formation of significant electron-withdrawing sites, collectively due to the highly electronegative cation and anion, hydrogen bonding, and polar groups. Comparison of the dispersing power was also conducted from different perspectives. The findings are expected to provide molecular insights for formulating versatile and more environmentally benign asphalt rejuvenators.

Research on Energy Storage Flywheel Motor Drive Control Technology

Currently there is a way to use for energy storage: batteries for chemical energy storage, super for electric field energy storage, and flywheel batteries for mechanical energy storage. Flywheel energy storage has the advantages of high energy storage density, high efficiency, short charging time, no pollution, wide applicability, no noise, long service life, easy maintenance and continuous operation. Recently the most promising and competitive new energy storage technology - flywheel energy storage technology, relative to other forms of energy storage, by domestic and foreign experts unanimously optimistic. This paper will focus on the composition and operation principle of flywheel energy storage system, the classification of drive control strategy, charging control strategy, discharge control strategy and other aspects.

New approaches on composite designs for Response Surface Methodology.

Recent attention has increasingly focused on the significance of Definitive Screening Designs (DSDs), originally introduced by Jones and Nachtsheim (2011), as a compelling alternative to traditional designs bib Response Surface Methodology (RSM). This paper introduces two novel composite techniques aimed at enhancing design efficiency and elevating D-values. By utilizing orthogonal matrices and integrating axial components from either simple orthogonal designs or the block orthogonal designs detailed in the work of Alrweili et al. (2020), new design matrices are constructed based on established composite design principles. Notably, the novel designs presented in this manuscript surpass previously documented designs in the existing literature in terms of design efficiency and robustness.

QbD Assisted Development and Validation of UV Spectroscopic Method in Estimation of Silymarin

Background: Silymarin is a flavonoid utilised in liver dysfunction for years; new studies have emphasised its potential utility as a therapy for nanoparticulate targeting in many other disorders. In order to establish the product quality of such compounds, researchers have been trying to develop a robust method of analysis, but the methods developed till now are too expensive and time-consuming. Here we proposed quality by design-assisted development and validation of the UV spectroscopic method using Design-Expert® software in the estimation of Silymarin for fabrication of nanoparticulate formulations, which is simple, accurate, cost-effective and non-tedious. Aim: The proposed method is a simple, new, robust, accurate, and precise UV visible spectroscopic technique for estimating silymarin produced in nano-formulations utilising an analytical quality by design (AQbD) approach. Methods: A UV spectrophotometric technique was established, as maximum absorption (287.7) was measured using a Shimadzu UV-1800 double-beam UV visible spectrophotometer. The characterization of silymarin was done by melting point, DSC and FTIR techniques. The two critical method variables chosen were scanning speed and sample interval to be analysed by the design of experiment methodology utilizing the central composite design principle, which shows robustness and optimized technique involved in this work. Results: The spectroscopy technique was developed and validated as per International Conference of Harmonization recommendations. The Beer's-Lambert rule was followed in a series of 2-12 μg/ml dilution increments, with a correlation value of R2 = 0.999. The method's linearity was shown to be excellent across the concentration range. The percent recovery of the current method approach was determined to be within the confidential limitations, i.e., less than 2% expressed as % RSD, and the methodology was proved to be precise at inter and intraday variations (% RSD). The LOD and LOQ were found to be 0.264 μg/ml and 0.801 μg/ml which were also determined correctly. During specificity testing, no interfering peaks were found. Conclusion: This UV approach has been used successfully to determine the quantity of silymarin present in the nanoparticulate formulation, which can be used for testing its other pharmaceutical dosage forms.

Optimal configuration of energy storage system capacity in traction power supply system considering photovoltaic consumption

In order to achieve energy savings and promote on-site integration of photovoltaic energy in electrified railways, a topology structure is proposed for the integration of photovoltaic (PV) and the energy storage system (ESS) into the traction power supply system (TPSS) based on a railway power conditioner (RPC). This paper analyzes the composition and operation principles of this structure. To assess the economic benefits brought by the integration of photovoltaic and energy storage systems, a bilevel optimization model is established, with the objectives of optimizing energy storage capacity configuration and photovoltaic energy integration. The KKT (Karush–Kuhn–Tucker) method is employed to transform the model into a single-layer mixed-integer linear programming model, which is then solved using the CPLEX solver in MATLAB. The research findings indicate that, with the configuration of the ESS, the optimal PV consumption rate achieved is 96.8749%. Compared to a 100% PV consumption rate, the ESS capacity configuration is reduced by 13.14%, and the overall operational cost of the TPSS is at its lowest. The study suggests that the proposed bilevel optimization algorithm can more effectively consider PV consumption, leading to enhanced economic performance of the TPSS operation.

Analysis Of the Principle and Application of Machine Learning for Music Composition

Contemporarily, machine learning and artificial intelligence are undergoing rapid developments in the field of arts. This paper explores the principles and applications of machine learning in music composition, tracing back to its inception in 1950s, and taking a brief look at the first works in the field of computer-generated music. It delves into the key principles of music composition using machine learning, and discusses the theory behind major models of recurrent neural networks (RNNs) and Generative Adversarial Networks (GANs) and how they are utilized in music composition. This paper also discusses about the real-world applications and potentials of current models, and finally analyze key limitations present in this field and points out a few directions for future works. This paper gives a brief and simple overview of the current status of machine learning in music composition, and provides an assistance to individuals interested in exploring this field and a valuable insight for future innovations.

A Combined Paddy Field Inter-Row Weeding Wheel Based on Display Dynamics Simulation Increasing Weed Mortality

Weeds compete with rice for sunlight and nutrients and are prone to harboring pathogens, leading to reduced rice yields. Addressing the issues of low weeding efficiency and weed mortality rates in existing inter-row weeding devices, the study proposes the design of a combination paddy field inter-row weeding wheel. The device’s operation process is theoretically analyzed based on the weed control requirements in the northeastern region of China, leading to the determination of specific structural parameters. This research conducted experiments on the mechanical properties of weed cutting to obtain geometric parameters for paddy field weeds. It was found that the range for the cutting gap of the dynamic–fixed blade is between 0.6 mm to 1.4 mm and the cutting angle is between 5° to 15°, resulting in the lowest peak cutting force for weeds. Using LS-DYNA R12.0.0 dynamic simulation software, a fluid–structure interaction (FSI) model of the weeding wheel–water–soil system was established. By employing the central composite experimental design principle and considering the soil stir rate and coupling stress as indicators, the optimal structural parameter combination for the device is obtained: a dynamic–fixed blade cutting gap of 1.4 mm, a cutting angle of 10.95°, and a dynamic blade install angle of −3.44°. Field experiments demonstrated that the device achieved an average weeding rate of 89.7% and an average seedling damage rate of 1.9%, indicating excellent performance. This study contributes to improving weed mortality rates and provides valuable guidance for inter-row mechanical weeding technology.

Design and Analysis of Biomass Gasification Reactor

Abstract: Biomass can be utilized as a renewable source of energy through various processes, and its theory involves understanding the principles of biomass composition, conversion technologies, and environmental implications. The objective of current research is to evaluate the thermal and fluid flow characteristics of gasification reactor using CFD tool. From the CFD tool, the temperature distribution at the combustion zone, mixing zone and exit zone are evaluated. The effect of turbulent mixing in gasification is evaluated. The application of Computational Fluid Dynamics (CFD) analysis in the study of biomass gasification reactors has proven to be a valuable tool for understanding and optimizing the complex processes involved. CFD simulations provide insights into the intricate interactions between biomass particles and gasifying agents, offering a detailed understanding of fluid flow patterns, temperature distributions, and species concentrations within the reactor.

Сравнительный анализ принципов проектирования электрогидравлических рулевых машин скоростных судов

The composition and control principles of steering electro-hydraulic machines of a simple and follower type, intended for rudder shifting of small and high-speed vessels are considered. An analysis of the functioning of existing steering gears for the specified group of vessels was carried out. Deficiencies in the work associated with the element base and composition of the control and electric drive systems of the analyzed steering machines have been formed. The features of the operation of hydraulic systems with drive electric motors of pumps made on direct current, revealed as a result of experiments, are shown. Variants of technical solutions for improving the energy performance of the electric drive are proposed. A comparative analysis of the operation of steering machines with AC and DC drives has been carried out. An assessment of steering machines operation in normal and emergency modes is given. Structural diagrams of control systems of simple and follow-up action are proposed, taking into account the operating features identified during the analysis and the requirements of the Russian classification society. The possibility of implementing an SM electric drive built using a frequency converter – asynchronous motor system powered by an alternating current network and an emergency source has been shown. Options for the implementation of electric drives for pumps of hydraulic stations with a high-voltage battery are proposed. The possibility of creating domestic installations for steering and other ship mechanisms, according to the proposed structural diagrams of control systems for hydraulic stations for high-speed ships, is shown. Recommendations are given for the construction of steering gears for high-speed vessels with a total displacement of up to 100 tons using domestic electrical equipment.

Особенности рецепции «онегинского текста» в литературном процессе XXI в.

The present article is devoted to the study of the specifics of the “Onegin text” development in the modern literary process, which allows us to determine the nature of the reception of the classical text in the Russian poetry of recent decades. The aim of the research is to study the peculiarities of development and transformation of plots and motifs of the “Onegin text” in the literary process of modernity. The scientific novelty is determined by the fact that for the first time modern poetic revisions of A. S. Pushkin’s novel in verse “Eugene Onegin” are comprehended in the stated aspect, which allows us to expand the idea of their problem-thematic originality and compositional principles, as well as to determine the place of poetic paraphrases in the literary process of the XXI century. As a result, firstly, it is established that the emergence of a large number of the “Onegin texts” in the modern literary process is caused both by the desire to move away from the clichéd perception of the classical model and to comprehend modern reality through the prism of the genre of Pushkin’s novel in verse. Deconstructing the genre canon of Pushkin’s work, modern authors create travesty texts, various kinds of paraphrases and parodies of the classical plot, where the iconic hero becomes a marker of the contemporary era. Secondly, it was found that the authors of the 21st century create fanfics in order to draw attention to the creative personality of the creator of the text, to make it popular on the Internet. In addition, the emergence of the “Onegin texts” is due to the desire to reflect on the imperfections of the era, when the classical picture of the world is taken as a reference point.

Toward stabilization of formamidinium lead iodide perovskites by defect control and composition engineering

Phase instability poses a serious challenge to the commercialization of formamidinium lead iodide (FAPbI3)-based solar cells and optoelectronic devices. Here, we combine density functional theory and machine learning molecular dynamics simulations, to investigate the mechanism driving the undesired α-δ phase transition of FAPbI3. Prevalent iodine vacancies and interstitials can significantly expedite the structural transition kinetics by inducing robust covalency during transition states. Extrinsically, the detrimental roles of atmospheric moisture and oxygen in degrading the FAPbI3 perovskite phase are also rationalized. Significantly, we discover the compositional design principles by categorizing that A-site engineering primarily governs thermodynamics, whereas B-site doping can effectively manipulate the kinetics of the phase transition in FAPbI3, highlighting lanthanide ions as promising B-site substitutes. A-B mixed doping emerges as an efficient strategy to synergistically stabilize α-FAPbI3, as experimentally demonstrated by substantially higher initial optoelectronic characteristics and significantly enhanced phase stability in Cs-Eu doped FAPbI3 as compared to its Cs-doped counterpart. This study provides scientific guidance for the design and optimization of long-term stable FAPbI3-based solar cells and other optoelectronic devices through defect control and synergetic composition engineering.

Genome-Wide Analysis of C-Repeat Binding Factor Gene Family in Capsicum baccatum and Functional Exploration in Low-Temperature Response.

Capsicum baccatum is a close relative of edible chili peppers (Capsicum annuum) with high economic value. The CBF gene family plays an important role in plant stress resistance physiology. We detected a total of five CBF genes in the C. baccatum genome-wide sequencing data. These genes were scattered irregularly across four chromosomes. The genes were categorized into three groupings according to their evolutionary relationships, with genes in the same category showing comparable principles for motif composition. The 2000 bp upstream of CbCBF contains many resistance-responsive elements, hormone-responsive elements, and transcription factor binding sites. These findings emphasize the crucial functions of these genes in responding to challenging conditions and physiological regulation. Analysis of tissue-specific expression revealed that CbCBF3 exhibited the greatest level of expression among all tissues. Under conditions of low-temperature stress, all CbCBF genes exhibited different levels of responsiveness, with CbCBF3 showing a considerable up-regulation after 0.25 h of cold stress, indicating a high sensitivity to low-temperature response. The importance of the CbCBF3 gene in the cold response of C. baccatum was confirmed by the use of virus-induced gene silencing (VIGS) technology, as well as the prediction of its protein interaction network. To summarize, this study conducts a thorough bioinformatics investigation of the CbCBF gene family, showcases the practicality of employing VIGS technology in C. baccatum, and confirms the significance of the CbCBF3 gene in response to low temperatures. These findings provide significant references for future research on the adaptation of C. baccatum to low temperatures.

The Impact of Façade Design on Visual Pollution Case study: Peshawa-Qazi Street (100 m) in Erbil

Visual pollution refers to the negative impact of various environmental elements on the visual experience of individuals and the quality of the surroundings. This includes unsightly buildings and other man-made structures that disrupt natural beauty. The design of building facades plays a significant role in determining visual pollution. This study aimed to assess the impact of facade design on visual pollution by testing which facade design considerations most contribute to visual pollution in Peshawa-Qazi Street (100 m) in Erbil City. An online survey was conducted with 283 participants in six architectural departments within engineering colleges and other online engineering platforms in Erbil, Duhok, and Suleimani. Respondents included architectural students from the 3rd to 5th stage, academic staff, and professional architects. They rated the impact of individual facade elements, contextual integration, and other factors on visual pollution. A one-sample T-test was used to compare mean scores to a test value of (2.5). Results showed that all three categories of façade design considerations significantly increase visual pollution compared to the test value (p < 0.05). Considerations regarding the overall context of a facade had the most significant impact (mean of 1.93 higher than the test value), followed by other factors (mean of 1.79 higher) and individual elements (mean of 0.71 higher). To decrease visual pollution, it is recommended to the policymakers and municipalities to develop regulations, façade design guidelines and for architects to follow the principles of architectural form and composition regarding the integration of building facades with their surroundings, façade practical considerations, and refined composition of façade elements.

The challenges of preserving our modernist public parks

Among the projects of the 20th century modern landscape architecture, there are some works that deserve to be pre-served as an integral part of the garden heritage. A world-wide inventory and evaluation of this landscape heritage is currently underway to identify those works that best represent the landscape architecture of the period.How can these works be restored in a way that meets today's ecological and social sustainability requirements without losing their original character? In the intensively used public parks presented in this article, complete reconstruction is generally not feasible, but the scale of the transformation is a central issue. International experi-ence shows how unclear the criteria for aspects of select-ing works to be preserved. For the time being, it is still often a subjective judgement, even within the professional community, whether the intervention used in the renova-tion process changes the composition of the original work.The renewal of any historic park and garden from any era must address sustainability, usually primarily from an ecological perspective. However, the contemporary regeneration of public parks and urban open spaces from the modern era, which are still intensively used today, is further complicated by the need for contemporary recrea-tional functions to be incorporated during the renovation and the application of universal design principles, which present additional challenges to integrate. Social sustain-ability is a strong requirement at these renovations.In this article, we analyse four modern public parks that were been renewed in the last 25 years or are in the process revitalization. In our country today, there is still no professional consensus as to which modern public parks can be considered valuable and worth preserv-ing for the future - if not through complete reconstruc-tion, then by carefully preserving the basic concept and compositional principles. The guiding principle in the selection of the public parks presented in this article was that they should be of different periods and have different recreational functions, with different challenges in their restoration.