Individual Pieces Research Articles

Large Wood Transport and Accumulation Near the Separation Zone of a Channel Confluence

AbstractFallen trees enter the adjacent stream and are carried away downstream by the current. As the stream joins another one, the complex hydrodynamics near their confluence make the movement of wood hard to predict. These woods may accumulate near the confluence resulting in backwater and subsequent potential flooding. A laboratory study was conducted to investigate the movement and accumulation behavior of individual pieces of wood near the confluence. The characteristics of wood (i.e., the length, diameter, and density) and the hydraulic conditions (i.e., the discharge ratio and the release distance) were varied in this investigation. It was found that the wooden pieces released from the tributary got occasionally trapped in the flow separation zone of the confluence, whereupon they were mainly trapped by a clockwise vortex and continued to stay driven by a reverse cluster of currents within this zone. The accumulation probability of wood was mainly related to its length, the discharge ratio and the release distance. The effect of wood diameter and density within the tested parameters was negligible. The probability increased with an increase in the discharge ratio as well as a decrease in the release distance. The longer pieces had a higher probability of being trapped, whereas for those exceeding some critical value, the probability was nearly the same, or dropped sharply. A generalized model for wood accumulation near the confluence was developed for practical application. These findings carry significant implications for river management, particularly in preventing the risk of flooding caused by wood blockage.

Gold Artifacts from the Early Scythian Princely Tomb Arzhan 2, Tuva—Aesthetics, Function, and Technology

This article explores the extraordinarily rich gold finds from the Early Scythian princely tomb Arzhan 2 in the Republic of Tuva, southern Siberia (late 7th to early 6th centuries BCE), through the methodological framework of the chaîne opératoire (operational sequence), in order to reconstruct the objects’ processes of manufacture. Through an interdisciplinary study of the finds at the State Hermitage in Saint Petersburg, the principal author analyzed tool marks and surface morphologies, which allow for the comprehensive identification and documentation of the numerous techniques employed in the creation of the often very elaborate jewelry, decorated weapons, and other personal ornaments. The production of both individual pieces and extensive series of thousands of identical trimmings attests to the existence of complex craft processes and workshop organizations. The technological aspects of the gold finds impress through their diversity and outstanding quality, both artistically and in terms of their craftsmanship. As this article will demonstrate, the objects present the earliest evidence for a highly specialized goldsmith artform in southern Siberia.

Examining the neural basis of unitization: A review.

Associative memory refers to the ability to form and remember associations between individual pieces of information rather than memory for a single object or word. Encoding associations in memory tends to be a more difficult task than item (only) encoding, because associative memory requires encoding multiple items as well as the specific links amongst the items. Accordingly, researchers have worked to identify interventions and strategies to reduce the effort and neural resources required for successful associative memory processing. Unitization is one such strategy that has traditionally been defined as the process by which two or more discrete items are processed, or encoded, such that they are perceived as a single ensemble. The current review explores the neural research on unitization while considering the behavioral benefits that accompany the process.

Comparison between cervical vertebrae of man and of the domestic animals

Anatomy is the science that studies the form, architecture and structure of living beings, and the modality that explores the morphological differences between species is called comparative anatomy. Among the bone structures that make up the axial skeleton of individuals, the cervical vertebrae stand out, considered odd and irregular bones. Given the relevance of cervical vertebrae, the objective of the present study was to compare such bone elements in humans and domestic animals (dogs, horses and cattle) and, nevertheless, highlight the structural similarities in these different species in terms of quantities, functions and formats in resulting from bone accidents. For this, skeletons and individual anatomical pieces from the Human and Veterinary Anatomy Laboratory of the University of Franca (UNIFRAN - Franca, SP) were used, as well as anatomy books renowned in this area of ​​specialty and scientific articles. The results were presented in a descriptive way. As for quantity, humans have seven cervical vertebrae, just like dogs, horses and cattle. In all species, the cervical vertebrae support the neck, providing movement of the head and protection of the cervical spinal cord. Regarding shape, the first (atlas) and second (axis) cervical vertebrae are atypical in all species. The atlas has an arched body, containing the dorsal and ventral tubercle; furthermore, the transverse process is modified (wing of the atlas) with the alar foramen and lateral vertebral foramen. The caudal articular surface of the atlas (fovea dentis) articulates with the odontoid process of the axis. Cattle do not have a transverse foramen and, in no species, does the spinous process appear in the atlas. The axis had a rod-shaped odontoid process in dogs, concave in cattle and pointed in other species, in addition to an elongated spinous process. The other cervical vertebrae are typical, composed of a vertebral body (with head of the vertebra and vertebral fossa), vertebral arch (participates in the formation of the vertebral foramen), vertebral foramen (houses the spinal cord) and spinous processes (poorly developed), transverse (well developed, containing the transverse foramen) and cranial and caudal articular (flat surfaces). In all species, the seventh cervical vertebra is modified, presenting a long spinous process and reduction or absence of the transverse foramen; furthermore, in horses, the spinous process was detected only in this vertebra. In humans, dogs, horses and cattle, the seventh cervical vertebra has a pair of caudal costal facets for articulation with the first pair of ribs. Given the results obtained, it is accepted that the anatomical morphological similarities and differences between the cervical vertebrae may be related to the functional, evolutionary and postural aspects of the different species studied.

Generative approaches for solving tangram puzzles

The Tangram is a dissection puzzle composed of seven polygonal pieces that can form different patterns. Solving the Tangram is an irregular shape packing problem known to be NP-hard. This paper investigates the application of four deep-learning architectures—Convolutional Autoencoder, Variational Autoencoder, U-Net, and Generative Adversarial Network—specifically designed for solving Tangram puzzles. We explore the potential of these architectures in learning the complex spatial relationships inherent in Tangram configurations. Our experiments show that the Generative Adversarial Network competes well with other architectures and converges considerably faster. We further prove that traditional evaluation metrics based on pixel accuracy often fail in assessing the visual quality of the generated Tangram solutions. We introduce a loss function based on a Weighted Mean Absolute Error that prioritizes pixels representing inter-piece sections over those covered by individual pieces. Extending this loss function, we propose a novel evaluation metric as a more fitting measure for assessing Tangram solutions compared to traditional metrics. This investigation advances our understanding of the capabilities of artificial intelligence in complex geometrical problem domains.

A high‐resolution inter‐annual framework for exploring hydrological drivers of large wood dynamics

AbstractRivers with alluvial bars store more wood than those without, supplied through channel shifting. However, wood dynamics (arrival or new deposits, departure or entrainment, and stable or immobile pieces) can vary substantially over time in response to critical hydrological drivers that are largely unknown. To evaluate them, we studied the dynamics of large wood pieces and logjams along a 12‐km reach of the lower Allier River using six series of aerial images of variable resolution acquired between 2009 and 2020, during which maximum river discharge fluctuated around the dominant flood discharge (Q1.5) that is potentially the bankfull discharge along this well‐preserved not incised reach. Individual wood departure was best correlated with water levels exceeding dominant flood discharge. The duration of the highest magnitude flood was best correlated with wood depositions, with shorter floods resulting in a higher number of deposits. Finally, most of the wood remained stable when river discharge did not exceed 60% of Q1.5 over a long period of time. Changes in inter‐annual wood budget (reach‐scale) depend on the duration over which discharge exceeded 60% of Q1.5. Hydrological conditions driving jam build‐up and removal were similar to those controlling individual wood piece dynamics. The results suggest that specific hydrological conditions influence the dynamics of large wood and log jams in the Allier River. Understanding the dynamics of large wood and its impact on river morphology is fundamental for successful river management and habitat restoration initiatives.

Some Thoughts on the Baroque Organ Suite

This article deals with the Baroque organ suite, which arose in France in the Reign of Louis XIV, when the tradition of publishing organ books was formed. And such books usually consisted of liturgical versets, grouped according to certain church tones. Since the musicological literature does not have a clear understanding of what an organ suite is as a genre, the author decided to clearly differentiate it among organ masses, magnificats and hymns that are similar in structure. In his opinion, an organ suite is an ordered collection of different musical pieces (usually from 6 to 13) in a single tone, without a common liturgical name. In total, there are approximately 75 such suites written by Nivers, Lebègue, Clérambault, Marchand and other masters of the French Baroque, although only a few samples are designated as Suite. Organ suites were not generally characterized by structural unification. However, they usually begin with a piece in the character of a solemn introduction, which is called Prélude or Plein jeu (by type of registration). The second most often is Fugue. Next follows a diverse group of textural and register genres. And as the completion of the entire suite, as a rule, are full-sounded Grand jeu or Plein jeu. At the same time, performance of the suites entirely “in one sitting”, as in modern concert practice, was not intended. French organ suites were addressed primarily to provincial organists, who could use individual pieces both as a guide for their own improvisations, and in the form of already “ready-made” versets for various services. If necessary, they could also combine these pieces, including other music. Therefore, any attempts of modern musicologists to find in the structure of the Baroque organ suite any purely musical meaning and to analyze them on the model of multi-movement compositions of later times have nothing in common with the authentic practice.

Mitigating the influence of topographies on hyperspectral images for the sorting of iron ore based on variational mode decomposition and spectral property

Hyperspectral imaging (HSI) can be applied for the purpose of sorting iron ores with varying total iron (TFe) content. However, the surface topographies of iron ore can negatively impact its hyperspectral images, consequently affecting the sorting effectiveness for each individual piece of iron ore. To address this issue, this study conducted an experiment on hyperspectral image of the iron ores. Firstly, variational mode decomposition (VMD) was employed to decompose the spectra of iron ore into trend signals and peak-valley signals. The two signals were then used for the calculation of three spectral properties (baseline-shift level, steepness level, and amplitude level). To identify the critical property capable of distinguishing normal spectra and the topographies-affected, the difference of the three spectral properties between the topographies-affected and the normal spectra were analyzed. According to the analysis results, a VMD-based correction model (VMDC) was proposed, which aims to identify the topographies-affected spectra in an ore and then correct them to resemble the normal spectra. Finally, the coefficient of variation (CV) for the correction was assessed and a test was conducted for TFe content prediction and sorting of each piece of iron ore. There are three primary conclusions summarized as follows:1. The mean Jeffries–Matusita distance (JMD) of baseline-shift level, steepness level, and amplitude level between normal spectra and topographies-affected spectra were 1.889, 1.307, and 1.170, respectively. This implies that baseline-shift level can be regarded as a key property for distinguishing whether a spectrum is topographies-affected or not. 2. After correction, there was a noticeable improvement in the topographies-affected areas of the ore samples, and the topographies-affected spectra showed the consistence with the normal spectra. Upon examination, the mean CV for VMDC is 0.115, whereas the uncorrected data has a mean CV of 0.315, indicating a reduction in spectral variability after VMDC correction. The results demonstrate the effectiveness of VMDC in mitigating the impact of topographies. 3. In the TFe content prediction and sorting, VMDC consistently demonstrates the best performance, for example when using RF as the regressor, coefficient of determination (R2) and accuracy of Original Data-RF, MSC-RF and VMDC-RF were 84.3% and 0.894, 86.7% and 0.903, and 88.7% and 0.921. The evaluation results confirm that VMDC can improve iron ore sorting. Overall, the proposed method shows potential for practical applications in iron ore sorting.

Finding the Prior Leaf

Fragments of Latin-script medieval manuscript books evoke the whole to which they once belonged, encouraging us to build a mental model of the now-broken whole. Discussing fragments thus requires a way to describe not just the surviving objects and how they relate to their current context, but also how they related to the original. At the most basic level, relating individual pieces to an original codex requires identifying the fragment’s physical role and orientation in the codex. Then, if the text of the fragment is known, extrapolation can be used to reconstruct leaves, gatherings, and codicological units. An extrapolative method is documented and validated using experimental data and examples from the Fragmentarium web platform.

Ebû Züeyb el-Hüzelî ve Mersiyeleri: Oğullarına Nazmettiği Mersiye Örneği

In the vast expanse of classical Arabic literature, the works of Abū Dhu’ayb al-Hudhalī stand out, particularly his elegies, which provide a pro-found glimpse into the sociocultural dynamics of his era. The research presented in this article delves deep into the life and artistry of Abū Dhu’ayb, meticulously examining how his personal experiences and surroundings shaped his poetic expressions. Elegies, often characterized by their mournful tone and reflective nature, become especially significant in Abū Dhu’ayb’s repertoire as they offer poetic lamentations and provide insight into the world in which he lived. The subject of this research focuses on Abū Dhu’ayb’s elegies, providing an in-depth literary analysis, and aiming to discern the intricate interplay between his life’s events and his poetic manifestations. By situating Abū Dhu’ayb’s elegies within the broader canvas of classical Arabic poetry, this research seeks to shed light on their distinct characteristics, thematic concerns, and stylistic nuances. Within the scope of this article, special attention is given to his deeply moving elegy dedicated to his sons. Drawing from a wide spectrum of his poems, we ensure a comprehensive understanding of Abū Dhu’ayb’s unique approach to the art of elegy. The rationale for this inquiry becomes particularly salient when we position Abū Dhu’ayb within the milieu of his literary peers. Although numerous poets of his era ventured into the domain of elegy, Abū Dhu’ayb’s compositions stand apart, characterized by their intimate resonance and the intricate threads of narrative woven seamlessly into his poetic tapestry. Engaging with overarching themes of fate, destiny, honor, and the human condition, his works do more than just lament the loss of loved ones or ponder the transient nature of life. Through this research, we aim to elevate the understanding of Abū Dhu’ayb’s contribution to Arabic literature and underscore the importance of his elegies as both literary mas-terpieces and historical documents. The primary purpose of this study is twofold. Firstly, it seeks to explore the artistic depth and breadth of Abū Dhu’ayb’s elegies, understanding their thematic richness and linguistic excellence. Secondly, the study aims to draw connections between the poet’s life—a life replete with its share of joys, sorrows, triumphs, and tribulations—and the elegies he crafted. By doing so, the research offers a holistic view of the poet, not just as a literary figure but also as a person deeply affected by the world around him. The methodological framework employed in this research is rooted in both literary analysis and historical contextualization. By closely reading Abū Dhu’ayb’s elegies, the research deciphers their symbolic and metaphorical elements, laying bare the poet’s craft. Concurrently, by positioning these elegies within their historical context, the study provides a broader understanding of the socio-political and cultural milieu of Abū Dhu’ayb’s era. This dual approach ensures a well-rounded exploration, enabling readers to appreciate the elegies both as individual pieces of art and as part of a larger poetic tradition. The research methodology used in this study involves a combination of literary analysis and historical contextualization.

Automatic Detection and Counting of Stacked Eucalypt Timber Using the YOLOv8 Model

The objective of this project was to automate the detection and counting process of stacked eucalypt (hybrid Eucalyptus urophylla x Eucalyptus grandis) timber in the forestry industry using the YOLOv8 model. The dataset consists of 230 diverse images of eucalypt roundwood, including images of roundwood separated on a rail and stacked timber. The annotations were made using LabelImg, ensuring accurate delineation of target objects on the log surfaces. The YOLOv8 model is customized with a CSPDarknet53 backbone, C2f module, and SPPF layer for efficient computation. The model was trained using an AdamW optimizer and implemented using Ultralytics YOLOv8.0.137, Python-3.10.12, and torch-2.0.1 + cu118 with CUDA support on NVIDIA T1000 (4096MiB). For model evaluation, the precision, recall, and mean Average Precision at a 50% confidence threshold (mAP50) were calculated. The best results were achieved at epoch 261, with a precision of 0.814, recall of 0.812, and mAP50 of 0.844 on the training set and a precision of 0.778, recall of 0.798, and mAP50 of 0.839 on the validation set. The model’s generalization was tested on separate images, demonstrating robust detection and accurate counting. The model effectively identified roundwood that was widely spaced, scattered, and overlapping. However, when applied to stacked timber, the automatic counting was not very accurate, especially when using images. In contrast, when using video, the relative percentage error for automatic counting significantly decreased to −12.442%. In conclusion, video proved to be more effective than images for counting stacked timber, while photographs should be reserved for the counting of individual roundwood pieces.

Exergoeconomic Analysis of a Mechanical Compression Refrigeration Unit Run by an ORC.

To improve the efficiency of a diesel internal combustion engine (ICE), the waste heat carried out by the combustion gases can be recovered with an organic Rankine cycle (ORC) that further drives a vapor compression refrigeration cycle (VCRC). This work offers an exergoeconomic optimization methodology of the VCRC-ORC group. The exergetic analysis highlights the changes that can be made to the system structure to reduce the exergy destruction associated with internal irreversibilities. Thus, the preheating of the ORC fluid with the help of an internal heat exchanger leads to a decrease in the share of exergy destruction in the ORC boiler by 4.19% and, finally, to an increase in the global exergetic yield by 2.03% and, implicitly, in the COP of the ORC-VCRC installation. Exergoeconomic correlations are built for each individual piece of equipment. The mathematical model for calculating the monetary costs for each flow of substance and energy in the system is presented. Following the evolution of the exergoeconomic performance parameters, the optimization strategy is developed to reduce the exergy consumption in the system by choosing larger or higher-performance equipment. When reducing the temperature differences in the system heat exchangers (ORC boiler, condenser, and VCRC evaporator), the unitary cost of the refrigeration drops by 44%. The increase in the isentropic efficiency of the ORC expander and VCRC compressor further reduces the unitary cost of refrigeration by another 15%. Following the optimization procedure, the cost of the cooling unit drops by half. The cost of diesel fuel has a major influence on the unit cost of cooling. A doubling of the cost of diesel fuel leads to an 80% increase in the cost of the cold unit. The original merit of the work is to present a detailed and comprehensive model of optimization based on exergoeconomic principles that can serve as an example for any thermal system optimization.

Predicting TFe content and sorting iron ores from hyperspectral image by variational mode decomposition-based spectral feature

During iron ore processing, accurately predicting the total iron (TFe) content in the ore is important for highly efficient and accurate sorting, which can reduce dust pollution, energy consumption, and economic losses, and promote waste utilization. Traditional techniques have limitations in accurately predicting the TFe content of individual iron ores, whereas hyperspectral imaging (HSI) has the potential to fulfill this task. Therefore, this paper explored it. For the experimental materials, 150 high-grade and 150 low-grade ore samples with particle sizes ranging from 20 to 40 mm were prepared. Subsequently, hyperspectral images of these samples were acquired within the range of 953–2517 nm, and the TFe content of each ore sample was measured. After preprocessing, the spectral features were extracted from the mean spectra of the iron ore, based on the analysis of the ore samples using variational mode decomposition (VMD). Subsequently, a random forest (RF) model based on these features was proposed to predict TFe content of the ores, and further sorted each individual piece of iron ore. Based on the evaluations, the prediction coefficient of determination (R2), root mean square error (RMSE), mean absolute error (MAE) and classification accuracy of the proposed model, VMD Feature-random forest (VMD-RF), were 0.94, 0.07, 0.03, and 0.91, respectively. The results proved the feasibility of accurately sorting each individual iron ore based on its predicted TFe content using HSI. This methodology offers technical support for a cleaner iron ore production.

The emergence of European boundary-spanning policy regimes: analysing intersectoral policy coordination in education and employment

ABSTRACT While much attention has been paid to European policy arrangements in individual policy fields, European intersectoral policy coordination has been mostly an overlooked phenomenon, especially within the sectors of education and employment. Thus, in the introductory paper for this Special Issue, we offer a contemporary discussion of European intersectoral policy coordination. We firstly review the literature on intersectoral policy coordination, and secondly look at the application of concepts related to intersectoral policy coordination to supranational arrangements, especially the European Union. We then employ the concept of boundary-spanning policy regime and the related ‘I’ framework (issues, ideas, interests, and institutions) to discuss the individual pieces’ contributions. This serves to explore the strength of the intersectoral perspective when analysing European policy coordination in education and employment. We conclude with a discussion of the strengths and limitations of this approach and offer a research agenda to study supranational intersectoral policy coordination (in education and employment).

Assessment of the antifungal efficacy of whey fermentate alone or in combination with citrus extract to control Aspergillus flavus mold in semi-moist pet food for dogs.

Semi-moist pet foods contain moisture levels ranging from 15 to 40%, making them ideal for mold growth and mycotoxin production. To control spoilage, synthetic mold inhibitors such as potassium sorbate have been used, but consumers prefer "natural" preservatives. Whey fermentate (WPF) is an efficient antifungal, but it requires large doses. Therefore, the objective of this study was to determine the antifungal effect of WPF alone or in combination with citrus extract oil (CEX) against Aspergillus flavus in semi-moist pet food. Nutritionally complete semi-moist pet foods were produced with WPF alone [0.25, 0.5, and 1.0% (w/w)] and in combination with CEX; 0.25% WPF+ 0.015% CEX, 0.25% WFP+ 0.15% CEX, 0.5% WPF+ 0.015% CEX, and 0.5% WFP+ 0.15% CEX (w/w). The negative control (NC) contained no antifungal additive and the positive control (PC) had potassium sorbate (0.1% w/w). The semi-moist pet food was thermally formed and was cut into 3 cm × 3 cm square pieces. Individual food pieces were inoculated with 0.1 mL of Aspergillus flavus (ATCC 204304) to achieve a final concentration of ~5.0 log CFU/piece. The inoculated pieces were individually incubated at 25°C. Fungal analysis was performed on day 3, 6, 9, 12, 15, 18, 21, 24, and 28 by surface plating on Potato Dextrose Agar (PDA) followed by incubation at 25°C for 72 h. The total log reductions were calculated by subtracting the initial inoculum from the final log counts on day 28. Higher log reductions of Aspergillus flavus (p < 0.05) were observed when WPF at 0.25 and 0.5% was combined with 0.15% CEX compared to when 0.015% CEX was used individually. All treatments were different from the NC (p < 0.05). Citrus extract at 0.15% potentiated the antifungal effect of WPF at 0.5% to give a similar log reduction (p > 0.05) to WPF at 1.0% in the food. In conclusion, CEX potentiated the antifungal efficacy and reduced the dose of WPF required to control Aspergillus flavus in semi-moist dog food.

Адам Смит за финансите на двадесети век

"The advocate of a system is apt to be very wise in his presumption, and is often so enamoured of the supposed beauty of his plan of government that he would not suffer the slightest deviation from it. ... He seems to imagine that he can arrange the various members of a great society with the same ease with which his hand arranges the pieces on the chess-board. He does not consider that the pieces in chess have no other principle of movement than that which the hand imparts to them; but in the great chess-board of human society each individual piece has its own principle of movement, quite different from that which the legislator would presumably choose to impose upon it. If these two principles coincide and act in the same direction, the game of human society will go on smoothly and harmoniously, and in all probability will be happy and successful. If they are opposed or different, the game will go on unhappily, and at every moment society must be in the utmost disorder"

Mesoscopic simulation of multi-scheme particle separation in deterministic lateral displacement devices using two-piece hybrid pillars

Pillar shape exploration in deterministic lateral displacement (DLD) technique holds great promise for developing high-performance microfluidic devices with versatile sorting schemes. A recent innovative design using filter-like micropillars was proposed to improve cell separation, but its significance might be greatly underestimated due to an inaccurate understanding of the underlying mechanism. In this study, we employ mesoscopic hydrodynamic simulations to explore the movement and separation of rigid spherical particles in DLD arrays using various two-piece hybrid (TPH) pillars, where each pillar consists of two individual pieces separated by a tunable inter-piece channel. In comparison with the conventional one-piece pillars, the back piece of TPH-pillars is found to hierarchically tailor the flow profile of the front piece on the basis of the row shift fraction and the inter-piece channel width, resulting in unique tunable multi-scheme separation at low, intermediate, and high row shift fractions, respectively. At the intermediate regime, in particular, the first flow lane that determines the critical separation size could be physically fenced out by the inter-piece channel, and a delicate coupling of hydrodynamic filtration and DLD has been revealed to induce a constant critical size in the whole regime. This work theoretically demonstrates the feasibility and significance of TPH-pillars, which may open up a new direction of the geometry design by exploiting rich multi-piece hybrid structures to expand the versatility of the DLD technique.

Routing Replenishment Workers: The Prize Collecting Traveling Salesman Problem in Scattered Storage Warehouses

Many online retailers apply scattered (or mixed-shelves) storage in the picking areas of their warehouses. Instead of keeping unit loads together, individual pieces of stock keeping units (SKUs) are stored on various shelves throughout the warehouse. This storage strategy increases the probability that—whatever it is that customers order jointly—somewhere in the warehouse these products will be located in close proximity. Hence, a picker can retrieve them without excessive unproductive walking. The price for this advantage on the picking side, however, is additional effort for the replenishment workers (also denoted as stowers) when restocking the shelves. Instead of moving only a single homogeneous unit load toward an SKU’s designated storage position, each stower has to travel along multiple open shelf spaces until all products on the cart are stored on shelves. The resulting stower routing problem is equivalent to the well-known prize collecting traveling salesman problem (PCTSP). While the PCTSP for general graphs is known to be strongly [Formula: see text]-hard, we show that in a warehousing environment, where all open storage positions are located along parallel aisles, it is only binary [Formula: see text]-hard. The special parallel-aisle structure allows us to derive an exact solution algorithm with pseudo-polynomial runtime, which solves even instances with hundreds of open storage positions to proven optimality in just a few seconds. Our computational tests show that the performance gains of an optimized stowing process over the status quo, where stowers operate without decision support, are significant. Especially, when the fill level of a warehouse is high, directing stowers on optimized routes promises huge improvements. History: Accepted by Andrea Lodi, Area Editor for Design &amp; Analysis of Algorithms – Discrete. Funding: This work was supported by the German Science Foundation/Deutsche Forschungsgemeinschaft (DFG) by the grant “Routing of human and automated order pickers in modern warehouses” (BO 3148/14-1 and BO 1972/2-1). Supplemental Material: The e-companion is available at https://doi.org/10.1287/ijoc.2022.0173 .

Model verification for population detection of counterfeits.

The quality of counterfeit items has increased dramatically, with modern global manufacturing being able to duplicate the materials, construction, and visual features of items. Detection of fraudulent coinage can parallel authentication of food, beverages, and manufactured goods by studying product-inherent features. Counterfeit detection is performed by comparing an Example group with a Questioned group. A model is developed for both groups using standard tests on individual pieces. Coin weight is used here as an illustration. The model should also follow the natural science of the system. In this case, the manufacturing process variation is known and steady, and the underlying distribution is known or can be determined from authentic pieces. The proposed detection method uses testing of many individual pieces, then using reverse-quality-engineering methods to identify possible sources. This strategy looks at the variation between individual pieces to determine the process capability of a machine, assembly line, or plant to create product consistency for a manufacturer. Fraudulent items may be manufactured within specification, but demonstrate a manufacturing process capability different than that of the authentic manufacturer. In this report, we examine the model previously reported and use reconstruction techniques to re-create the evidence set to validate the model, increase model accuracy, and confirm the conclusion previously reached, showing that the Questioned set is likely over 37% non-conforming by weight. In this case, the decision outcome of the analysis was improved by using additional methods not included in the modeling software package originally used.

Phosphatenes as Building Blocks for The Synthesis of Triphosphate Heterocycles Using the EDAS Method

Toy blocks, commonly referred to as "building blocks," are angular pieces used for pretend construction. Some are straightforward wooden boards. Some are more upscale, such as plastic Mega blocks and Legoland bricks. A construction brick is used for additive development, a supportive brick is used for stability, and a lock brick is used to stiffen constructions. These are the four basic building pieces. formation. Cast concrete is used to make concrete bricks Industrial waste may be used in low population density blocks. The sturdy masonry structure used bricks and stones, which are made up of individual pieces of a similar form laid down in stages with mortar acting as a mattress and binding substance. They typically consist of components that can be carried and operated by a single employee that are manufactured from high mass elements with good strength properties. Alternative: “democratic involvement and scrutiny, Democratic decision-making, nteraction and participation, forms download, online advisory, Online query, Online transaction, Navigability”. Evaluation Preference: “(UK-A1, Ireland-A2, Belgium-A3, Netherlands-A4, Finland-A5, Sweden-A6, Germany-A7 and Denmark-A8)”. “As a result, A3 and got the first rank, while A6 got the lowest rank. “The value of the dataset for building blocks in the EDAS method shows that it results in Belgium-A3 and the best ranking.”.