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Hydrogen and ammonia, as currently popular zero carbon fuels, have received widespread attention. These two fuels have complementary advantages in combustion characteristics, cost, safety, etc. Based on the vase shaped micro combustor, a new structure proposed for application in micro thermophotovoltaic systems in our previous work. This article numerically investigated the combustion characteristics and NOx emission of non-premixed H 2 /NH 3 /Air in vase shaped micro combustor which proposed in our previous work. The variation patterns of flame temperature, wall temperature, flammability limit, and NOx emission with the blended ratio of NH 3 and equivalence ratio were obtained. It was found that the flame cannot move and stabilize when the mixing ratio is 0.6. The rate of production (ROP) and sensitivity of NO and N 2 O were analyzed. Four precursors of NO, HNO, NH, N, N 2 have been discovered. Under the conditions of this article, HNO is the key component affecting NO emissions. When the blending ratio is greater than 0.3, the lower reaction rate of HNO leaded to a decrease in NO. The elementary reaction R63: NH + NO N 2 O + H is the key elementary reaction that affects NO consumption and N 2 O generation. The blending ratio of 0.4 and the equivalence ratio of 1.2 are the optimized operating conditions with the highest comprehensive performance. • Combustion and emission characteristics of H 2 /NH 3 in vase shaped micro combustor. • H 2 /NH 3 non-premixed combustion limit in novel micro combustor was studied. • ROP and sensitivity of NO and N 2 O were analyzed. • HNO and R63 are key species and elementary reaction effect on the NO emission. [ABSTRACT FROM AUTHOR]

Vase life directly affects the ornamental value of cut flowers, and extending vase life has been a research focus in the floriculture industry. The antioxidant and antimicrobial properties of Nano-Se provide a new direction to extend the life of cut-flower vase life. In order to explore the postharvest quality of Nano-Se on cut-flower roses, this study treated cut-flower roses with different concentrations of Nano-Se (200, 400, and 600 mM) using a commercially available preservative solution as a base solution. The results showed that appropriate concentrations of Nano-Se significantly increased the vase life of cut-flower roses and helped to maintain high petal moisture content. Nano-Se at concentrations of 200, 400, and 600 mM extended the vase life of cut roses by 4.3, 5.7, and 3.7 d, respectively. As the vase period extended, the Nano-Se treatment group effectively delayed the decline in antioxidant enzyme activities such as peroxidase (POD) and catalase (CAT), maintained the soluble sugar (SS) and soluble protein (SP) contents in the cut roses, and inhibited the production of malondialdehyde (MDA) and hydrogen peroxide (H2O2), reducing their accumulation. A correlation analysis of the physiological indexes of cut roses showed that vase life was positively correlated with POD and CAT activities, SS and SP contents, and total phenolic acid content and negatively correlated with MDA and H2O2 contents. This study provides a solid theoretical basis for the diversification of preservatives and the development of new preservatives for fresh-cut roses, which is expected to provide significant economic benefits. [ABSTRACT FROM AUTHOR]

Rearranging objects (e.g. vase, door) back in their original positions is one of the most fundamental skills for domestic service robots (DSRs). In rearrangement tasks, it is crucial to detect the objects that need to be rearranged according to the goal and current states. In this study, we focus on Rearrangement Target Detection (RTD), where the model generates a change mask for objects that should be rearranged. Although many studies have been conducted in the field of Scene Change Detection (SCD), most SCD methods often fail to segment objects with complex shapes and fail to detect the change in the angle of objects that can be opened or closed. In this study, we propose a Co-Scale Cross-Attentional Transformer for RTD. We introduce the Serial Encoder which consists of a sequence of serial blocks and the Cross-Attentional Encoder which models the relationship between the goal and current states. We built a new dataset consisting of RGB images and change masks regarding the goal and current states. We validated our method on the dataset and the results demonstrated that our method outperformed baseline methods on $ F_1 $ F 1 -score and mean IoU. [ABSTRACT FROM AUTHOR]

Carnation (Dianthus caryophyllus L.) holds great significance as a cut flower, and its vase life plays a crucial role in determining its quality and market appeal. However, the extended transportation distances from the production location to consumer markets can have an unfavourable impact on the vase life and overall quality of cut flowers. The first experiment demonstrated that exposing cut carnation flowers to simulated vibrational stress (SVS) led to a decline in vase life and overall quality. Notably, the application of Nano Silver (NS; 25 and 50 μM) and melatonin (MT; 100 and 200 μM) into the holding solution proved effective in counteracting these negative effects, and extended the vase life by promoting cut flower water relations. In the second experiment, the optimal concentrations of NS and MT into the holding solution (25 and 100 μM, respectively) effectively reduced chlorophyll degradation, electrolyte leakage, and lipid peroxidation by enhancing the activity of catalase and peroxidase enzymes. As a result, it appears that the application of NS and MT in the holding solution has successfully prolonged vase life by both improving water balance and boosting antioxidant activity, while mitigating the negative effects of SVS. [ABSTRACT FROM AUTHOR]

Vase life is a decisive measure of the marketability of post-harvest physiology in cut flowers. In the process of petal senescence, the cut chrysanthemum (Chrysanthemum × morifolium) 'Pingpong' group develops severe capitulum collapse which manifests as wilting and browning, leading to shorter vase life. Melatonin (MT), tea polyphenols (TPs), and chitosan (CT) are natural alternatives to chemical compounds with proven preservation effects. In this study, the possibility of mitigating capitulum collapse using the preservation solutions of these three eco-friendly ingredients was investigated on four varieties from the 'Pingpong' group, aiming to delay the senescence process. The effects on vase life of 0.02/0.04 mmol·L−1 MT, 200/400 mg·L−1 TPs, and 0.10/0.20 g·L−1 CT were, respectively, assessed with the basis of 20 g·L−1 sucrose and 250 mg·L−1 citric acid. The yellow and white varieties tend to have a longer vase life compared with the green and pink varieties. Compared to the control with only base ingredients, the greatest delay in capitulum collapse was observed with 0.04 mmol·L−1 MT in the yellow variety, maximizing the vase life to 13.4 days. MT maintained the best ornamental quality of the capitulum by decelerating fresh weight and flower diameter loss in terms of all varieties. TPs significantly increased flower diameter to improve vase life up to four more days. However, CT caused significant negative effects on vase life, with severe loss of both flower diameter and fresh weight. Therefore, the application of 0.04 mmol·L−1 MT and 200 mg·L−1 TPs was suggested to enhance the marketability of cut 'Pingpong', which highlighted the eco-friendly potential of post-harvest treatments. [ABSTRACT FROM AUTHOR]

Vacuum-Assisted Sorbent Extraction (VASE) is a novel extraction technique that uses vacuum to facilitate the transfer of volatile compounds from the matrix to the sorbent. This technique was explored for extraction of volatiles from cape gooseberry fruit, for both qualitative and quantitative analyses. Selected extraction parameters were tested: sample size, extraction temperature and time, influence of tissue disintegration on release of volatiles, and also addition of Ag+1 ions in the form of AgNO3 to stop enzymatic formation of volatile compounds. For selected conditions (10 g sample, extraction for 30 min. at 40 °C of volatiles from blended fruit) quantitative aspects were explored. Twenty-two compounds of cape gooseberry were tested. The method was characterized with a very good linearity in a range of 10–5000 µg/kg and good reproducibility. The experiments proved the usefulness of VASE in both volatile profiling and quantitative analyses of cape gooseberry and in prospective other fruit. [ABSTRACT FROM AUTHOR]

Cut flowers deteriorate rapidly after harvest, lasting mere days. To extend their vase life, various postharvest techniques are employed. Due to limited knowledge about the postharvest physiology of Alstroemeria cut flowers and the specific role of secondary compounds and antioxidant systems in their protection, this study investigated the optimal dosage of sodium nitroprusside (SNP) as a nitric oxide (NO) donor to enhance quality and antioxidant defenses. Preharvest foliar application of SNP at 0, 50, 100, and 200 µM followed by short-term pulsing treatments upon harvest at the same concentrations were applied in a factorial design. Results revealed that a preharvest 100 µM SNP treatment combined with a 50 µM postharvest pulse significantly increased the total amount of phenols (over 20%), antioxidant capacity (more than doubled), and the activity of two antioxidant enzymes (ascorbate peroxidase by over 35% and guaiacol peroxidase by about 20%). Notably, this combination also diminished ion leakage (by about 20%), ultimately extending the vase life by more than 40% compared to untreated plants. Therefore, SNP application at these specific dosages proves effective in bolstering Alstroemeria cut flower quality and vase life through enhanced total phenols and a strengthened antioxidant system. [ABSTRACT FROM AUTHOR]

The human–computer interaction attribute of the interactive genetic algorithm (IGA) allows users to participate in the product design process for which the product needs to be evaluated, and requiring a large number of evaluations would lead to user fatigue. To address this issue, this paper utilizes an XGBoost proxy model modified by particle swarm optimization and the graphical interaction mechanism (GIM) to construct an improved interactive genetic algorithm (PXG-IGA), and then the PXG-IGA is applied to 3D vase design. Firstly, the 3D vase shape has been designed by using a bicubic Bézier surface, and the individual genetic code is binary and includes three parts: the vase control points, the vase height, and the texture picture. Secondly, the XGBoost evaluation of the proxy model has been constructed by collecting user online evaluation data, and the particle swarm optimization algorithm has been used to optimize the hyperparameters of XGBoost. Finally, the GIM has been introduced after several generations, allowing users to change product styles independently to better meet users' expectations. Based on the PXG-IGA, an online 3D vase design platform has been developed and compared to the traditional IGA, KD tree, random forest, and standard XGBoost proxy models. Compared with the traditional IGA, the number of evaluations has been reduced by 58.3% and the evaluation time has been reduced by 46.4%. Compared with other proxy models, the accuracy of predictions has been improved up from 1.3% to 20.2%. To a certain extent, the PXG-IGA reduces users' operation fatigue and provides new ideas for improving user experience and product design efficiency. [ABSTRACT FROM AUTHOR]

Lens phenomena, such as caustics, image distortions, and the formation of multiple images, are commonly observed in various refracting geometries, including raindrops, drinking glasses, and transparent vases. In this study, we investigate the ball lens as a representative example to showcase the capabilities of Berry's eye caustic as an optical tool. Unlike the conventional paraxial approximation, the eye caustic enables a comprehensive understanding of image transformations throughout the entire optical space. Through experimental exploration, we establish the relationship between the eye caustic and traditional light caustics. Furthermore, we provide mathematical expressions to describe both the caustic and the image transformations that occur when viewing objects through the ball lens. This approach could be of interest for optics education, as it addresses two fundamental challenges in image formation: overcoming the limitations of the paraxial approximation and recognizing the essential role of the observer in comprehending lens phenomena. [ABSTRACT FROM AUTHOR]

In recent years, attempts are made to overcome some of the ambiguities in Naser Khosrow’s Divan verses, while the remaining are yet to be overcome. The objective of this descriptiveanalytical study is to explain and interpret some of the available ambiguous verses of Naser Khosrow’s Divan by referring to different resources. The objective here is to demonstrate that being aware of philosophical thoughts affects overcoming the ambiguity of vases in Naser Khosrow’s Divan. The results indicate that to facilitate the undertaking of correction and description of the subject, which is the core of the poet’s philosophical thoughts about the world, humans, and life, next to referring to the old manuscripts, close attention to the poet’s thoughts’ principles and origins is of high essence. As an example, with no deep grasp of the abstruse concepts as the central world topic and the element’s tendency toward it: 1) the elements’ love and hate in the world of existence and decadence, 2) the pairing of the wisdom and general soul and its contribution in constructing the lower world, the minor world, the major world, 3) overturning the tree and viewing its roots as its mouth, and 4) the advantages of a cat that catches a mouse, a major part of the ambiguous verses in this Divan would remain ambiguous. [ABSTRACT FROM AUTHOR]

Copyright of Spal: Revista de Prehistoria y Arqueologia de la Universidad de Sevilla is the property of Spal. Revista de Prehistoria y Arqueologia de la Universidad de Sevilla and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Iranian painting went through a series of changes in the seventeenth century at the same time as the Safavid rule. One of the most important characteristics of the works left over from this era is the fluctuation in following previous traditions or imitating the qualities of European painting. Although art scholars have proposed possibilities and theories about this painting " Mīkhak Guldān" has the signature of Shafi Abbasi, it seems that it can still be the basis for researches in the field of developments in Iranian painting. In this regard, the aim of the current research is to identify the most important manifestations of following and not following the previous traditions of painting in order to answer the question that: according to the specific time period and cross - cultural influences, in what cases did the painter act under the influence of previous traditions and in What things have been affected by the newly infiltrated cultural currents? With a retrospective approach, this research has used library information collection tools and a descriptive method has been used to achieve a fundamental goal. The results identify the most important manifestations of following the previous traditions: the decoration and the stylization; The details of drawing flowers and vases are in such a way that the painter has considered the best display mode for all components. The vase that is painted in this work is one of the ancient vessels in Iran and its use has been common. On the other hand, it seems that although Shafi considered European naturalism desirable and was influenced by it, he still used the contemporary perspective inspired by previous traditions. Finally, it is believed that the integration of the characteristics of Iranian painting along with the qualities of European painting has resulted in a kind of individual characteristic in this painting . [ABSTRACT FROM AUTHOR]

Copyright of Magazine General Union of Arab Archaeologists is the property of General Union of Arab Archaeologists and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

In the 12th B.C. a group of Mycenaean refugees fled to Paros and occupied the Koukounaries hill. On the Upper Plateau a mansion was built behind the fortification wall, which comprised a central building and auxiliary buildings. The pottery may be dated to the Late Helladic IIIC Middle developed period (Main occupation) and consists mostly of local clay. The most popular vase type is the deep bowl, as is also the case at the contemporary Cycladic site of Phylakopi on Melos. South of the Upper Plateau, in the Temple-Temenos area parts of Mycenaean walls were detected. The pottery from the trenches in the area of the later Temple-Temenos belongs to two groups. The earlier of the two should be dated to the Late Helladic IIIC Middle advanced-Late period, the White Ware is here missing. The latter group must be dated to the Late Helladic IIIC Late period, the White Ware is present, but also the vessels with hollow rims, ring-based craters were found. The finds can be compared to material from the Upper Plateau (Reoccupation phase), Lefkandi, Kea and the Argolid. Based on this and other evidence, a koine is proposed during the Late Helladic IIIC Late Period. [ABSTRACT FROM AUTHOR]

Copyright of Egyptian Journal of Archaeological & Restoration Studies is the property of Sohag University, Archaeological & Restoration Center and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

To explore the effects of different harvest periods and preservatives on the vase performance of cut branches of Rhododendron, in this experiment, the cut branches of Rhododendron XXL were used as the experimental material, and the changes in flower and inflorescence size, the flowering rate, and the vase life of the cut branches were studied at the different harvest period such as the tight-bud stage, the unfold-top stage, the soft-bud stage, and the unfold-petal stage in order to determine the optimal harvest period. And then the effects of different preservatives on the flowering characteristics, the water balance, and the fresh weight change rate of XXL cut branches were studied by using sucrose, 8-hydroxyquinoline citrate(8- HQC), and citric acid monohydrate(CA) as the reagents. The results showed that the XXL cut branches harvested at the unfoldpetal stage had the best vase performance with the largest flower and the longest vase life. And the cut branches harvested at the soft-bud stage had the second vase performance. Among the four different preservatives used in this experiment, the cut branches of the treatment of 4.50 g/L of sucrose+150 mg/L of 8-HQC+100 mg/L of CA had high flowering rate and large inflorescence, and the treatment effectively maintained the water balance, and delayed the decrease in fresh weight, and extended the vase life to 18±1 days of the cut branches. In conclusion, the rhododendron cut branches could be carried out according to the distance of consumption, by cutting the branches at the soft-bud stage for the far distance and the branches at the unfold-petal stage for the close distance, at the same time, 4.50 g/L of sucrose+150 mg/L of 8-HQC+100 mg/L of CA could be selected as the preservatives to prolong the vase life. [ABSTRACT FROM AUTHOR]

This article explores the discovery and analysis of mourning figure vessels found in the Theban area of Egypt. These vessels, dating to the New Kingdom, are associated with mourning rituals and often connected to the goddesses Isis and Nephthys. The Tausert mourning-woman vessel, found in a memorial temple, is a unique example that has been painted. These vessels offer valuable insights into the evolving burial practices and religious traditions of ancient Egypt. [Extracted from the article]

In the second half of the 17th century in the Ottoman Empire, along with political and economic weaknesses, it is observed that painters were directed towards Western culture, leading to changes in Turkish decorative arts, where baroque and rococo styles dominated classical patterns. During this period, which is one of the embellishment elements of mosque architecture, changes also occurred in the art of painting decoration, which is applied on plaster, stone, wood, leather, and fabric using natural dyes and fine-haired brushes. Classical motifs were replaced by acanthus leaves, oyster shells, scallops, thistle leaves, and curtain motifs; “C” and “S” curves gave way to vases filled with flowers, fruit dishes, and baskets. In the ornamentation of Karaoglu Mosque located in the Sarı Bey neighborhood of Birgi district in Izmir, we can see beautiful examples of late-period illumination art both externally and internally. Notable illumination decorations are observed in the door pediment, window pediments, and wall surfaces in the last congregation area; in the pulpit, minbar, and window pediments; and in the corners of the mihrab, balcony floor, and arch transition elements. Generally, red, blue, green, brown, and yellow colors were used in the ornamentation. Upon examining the decorations, geometric elements such as rosettes, oak and pine tree species, cloves, roses, tulips, pomegranates, and poppies placed inside vases were identified alongside equilateral rectangles and triangles. [ABSTRACT FROM AUTHOR]

The vase life of Narcissus poeticus flowers collected at the white bud stage was investigated in 13 different concentrations of NaCl (0–5–10–15–20–30–40–...–100 mM). Every 12 hr, the opening stage of the flowers was recorded, divided into 4 main categories (bud, opening flower, full open (FO) flower and wilting flower) and 14 subcategories. The salinity did not affect the flower opening speed, diameter or weight. The duration of the full flowering stage decreased from 92 hr to 44 hr, the sum of the daily ornamental value score (OVS) decreased from 120 by 3 scores per each 10 mM concentration increase. The scape chlorophyll content increased at low salinity (10–15 mM) and then decreased significantly. The carotenoid content in the scapes of wilted flowers increased in 30–100 mM solutions compared to the values in the flowering stage and flowers grown at lower salt concentrations. The Na and Cl contents in the plant parts increased significantly with the increase in salinity (at the end of the experiment, 100 mM NaCl: scapes: 44.1 g · kg-1 and 67.2 g · kg-1 Na and Cl; flowers: 16.8 g · kg-1 and 24.8 g · kg-1 Na and Cl, respectively). There was an inverse correlation between the Na and K contents in the scapes. The EC value of the vase solutions decreased during the experiment. [ABSTRACT FROM AUTHOR]

Polystichum species, native to warm-temperate and montane-tropical environments (including some alpine regions), are terrestrial or rock-dwelling ferns. These plants exhibit dark green, leather-like, and lustrous fronds, which are highly valued in floral arrangements due to their aesthetic elegance and longevity. Polystichum squarrosum is not being cultivated commercially but collected from forests for its use as cut green in the florist industry. Hence the collected material should be handled carefully to utilize every frond. Therefore, the present study aimed to develop suitable post-harvest handling procedures for this valued cut green. A Completely Randomized Design (CRD) Factorial layout with 19 treatment modules (M0 to M18) was employed. Treatment modules included packaging material as poly mesh net bags and packing materials as corrugated fiberboard boxes, two storage durations (3 and 6 days) and chemical treatments [glycerol (4%) and Benzyl adenine (25mg L-1)]. Results revealed that spraying cut fronds with 4% glycerol, wrapping them in cellophane sheets and storing them for three days (M9) resulted in significant improvements in appearance, weight change, vase life and water uptake. Fronds from Season-II (March-April 2020) exhibited excellent performance over Season-I (August-September 2019). The interaction between M9 and Season-II further enhanced the postharvest parameters. The combination of glycerol treatment and cellophane wrapping for three-day storage proved most effective in preserving the quality of cut fronds. [ABSTRACT FROM AUTHOR]

The production of cut flowers has substantial economic potential, and therefore, extending their lifespan has been the main focus of several floriculture researchers. Despite the increased marketable value of gladioli, their spikes rapidly lose their visual value and postharvest quality, accompanied by a short vase life. Unfortunately, most floral preservatives used to extend the flower lifespan have hazardous impacts; thus, providing eco-friendly alternatives has spurred immense interest among scientists. Sage and rosemary essential oils (EOs) seem to be effective eco-friendly flower preservatives due to their content of antimicrobial and antioxidant compounds. This study was therefore conducted to investigate whether using sage or rosemary EOs as novel preservative solutions can enhance the quality and prolong the vase life of cut gladiolus spikes. Gladiolus spikes were subjected to several concentrations (0, 50, 100, 150 and 200 mg L−1) of sage or rosemary EOs in a vase solution. All levels of both EOs significantly prolonged the vase life of gladiolus spikes, increased their water uptake and enhanced floret opening compared to the control. The vase life was increased by 88.16 and 84.76% by applying 150 or 100 mg L−1 of sage or rosemary EOs, respectively, compared to the untreated spikes. Sage and rosemary EO treatments markedly decreased bacterial populations, preserved the chlorophyll content, decreased H2O2 production and retarded the accumulation of malondialdehyde (MDA), and therefore preserved the membrane stability relative to the control. Furthermore, the total phenols and the antioxidant enzyme activities of catalase, glutathione reductase and ascorbate peroxidase were significantly increased due to sage or rosemary EO applications. In conclusion, sage or rosemary EOs may be applied as innovative, eco-friendly alternative preservatives to the communal chemicals used as preservatives in the cut flower industry. [ABSTRACT FROM AUTHOR]