Journal articles: 'Door leaf'

1

Yan, Qiushi, and Dong Guo. "Elastic Rebound of a Blast Door Under Explosion Loadings." International Journal of Structural Stability and Dynamics 18, no. 10 (October 2018): 1871011. http://dx.doi.org/10.1142/s0219455418710116.

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Rebound effects can be caused for a blast door under explosion loadings of conventional weapons. Such effects reaching a certain extent can lead to severe reversed stresses and even destroy the hinge and lock system before the door leaf. In this study, an analytical model for the elastic rebound of a blast door under explosion loadings was proposed and analyzed. Based on the calculations, the effects of aspect ratio and load duration on the rebound behavior were analyzed. Furthermore, for extension of the analysis from the elastic to plastic range, comparison of the solutions with the analytical ones was made. The results showed that the positive and negative dynamic shear force peaks of the blast door deceased gradually with the aspect ratio, whereas the rebound strength was inversely proportional to the load duration. For blast doors entering into the plastic stage, the rebound behavior was similar to the elastic stage, implying that the design of a blast door can be based on its characteristics in elastic stage.

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Shin, Hyunseop, Sungwook Kim, Jaeheum Moon, Wonwoo Kim, and Weonhee Hong. "Failure Behavior Analysis of Single-leaf Blast-resistant Door by Explosion Loads." Journal of the Korean Society of Hazard Mitigation 20, no. 4 (August 31, 2020): 195–206. http://dx.doi.org/10.9798/kosham.2020.20.4.195.

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For a blast-resistant structural system with concrete slab as the primary structural member, edge rotation based on flexural failure is generally used as an index to evaluate its structural performance. However, it has been predicted that short-span single-leaf blast doors are vulnerable to shear failure. In this study, limitations on the general application of the edge rotation as a performance evaluation index were reviewed using a finite element (FE) method. The results demonstrated that shear failure was dominant in the impulsive and dynamic response regions, while shear failure or flexural-shear combined failure was dominant in the quasi-static region. In the case of short-span single-leaf blast door, the concrete slab is vulnerable to shear failure, and therefore, the door should be designed considering pressure-impulse curves based on shear failure. For further study, several explosion tests and FE analyses will be required to verify the structural responses and failure level changes according to various specifications of the blast door, and to obtain a general evaluation index for its structural performance.

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Dlhý, Dušan, and Katarína Minarovičová. "Door Bottom Joint Design and its Influence on Sound Transmission of the Door." Advanced Materials Research 899 (February 2014): 487–90. http://dx.doi.org/10.4028/www.scientific.net/amr.899.487.

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The higher the acoustical quality of the door leaf the greater the influence of the bottom gap on the resultant sound insulation of the door. If the design of the door bottom joint and the seal is not correct, any construction of the door leaf in order to increase sound insulation can be ineffective. The greatest influence on sound transmission of the door has the gap with the greatest width a door bottom joint. Modern ways of the sealing of the doorsill gap are able to provide required sound insulation of the door.

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Yeomans, David, Hugh Harrison, and Andrew Smith. "Repairing a Medieval Door." Advanced Materials Research 778 (September 2013): 739–46. http://dx.doi.org/10.4028/www.scientific.net/amr.778.739.

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The main doors of medieval buildings or building complexes such as cathedrals or palaces are substantial structures, often weighing as much as one tonne per leaf. A survey of medieval English doors shows several distinct structural types whose different structural actions will be considered. All must develop some form of in plane action through the interaction of their components to transmit their weight back to their supports. However their complexity often allows several different modes of action, each of which will be differently affected by moisture movement within the timber, so that more than one mode of action will often need to be considered. The recent need to repair the early sixteenth century main doors of Trinity College, Cambridge involved the detailed analysis of one of these types whose structure comprised a dense grid of relatively slender muntins and ledges set within a much more substantial frame, carrying decorated boarding and mouldings on the outside face. The intention was that by understanding this structure we would be able to restore the original structural action of the door. In this case earlier interventions and permissions, and the extent of deterioration at the lower hinges, made this impossible. However, the exercise suggests an approach that might be valuable in the restoration of other doors of this type.

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Fei, Yuan. "Analysis of the structure of door bottom drop sealing device." E3S Web of Conferences 236 (2021): 02027. http://dx.doi.org/10.1051/e3sconf/202123602027.

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-Drop Seals Is A Kind Of Hardware That Can Solve The Tightness Of The Door Bottom. This article will briefly introduce the common structural features of this hardware and analyze its impact on the sound insulation of the door leaf according to the experiment. Based on the comparative analysis of 5 sets of data, the experiment proved the effectiveness of the drop seals for the door bottom seal.

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Tarigan, U., I. Siregar, and R. M. Sari. "Implementation of first come first served in door leaf production scheduling." IOP Conference Series: Materials Science and Engineering 725 (January 21, 2020): 012023. http://dx.doi.org/10.1088/1757-899x/725/1/012023.

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Hsieh, Ching. "A direct method for optimising fuel filler door with leaf spring." International Journal of Vehicle Design 25, no. 1/2 (2001): 78. http://dx.doi.org/10.1504/ijvd.2001.001909.

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Chuang, Ying-Ji, Tung-Hung Tsai, Ying-Hung Chuang, Ching-Yuan Lin, Chin-Hsing Huang, and Po-Hung Chen. "Performance Assessment of Single-Leaf Timber Door in a Smoke Leakage Test." Journal of Applied Fire Science 16, no. 2 (January 1, 2006): 101–14. http://dx.doi.org/10.2190/af.16.2.a.

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Hsieh, Ching, and M. Akins. "A generic model for robust design of fuel filler door with leaf spring." International Journal of Vehicle Design 21, no. 4/5 (1999): 471. http://dx.doi.org/10.1504/ijvd.1999.005597.

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Korendiy, V. M., O. Yо Kotsiumbas, and O. V. Lanets. "Analysis of technical and operational characteristics of turning-and-shunting door opening mechanism of electric public transport." Scientific Bulletin of UNFU 29, no. 3 (April 25, 2019): 89–95. http://dx.doi.org/10.15421/40290319.

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One of the most important problems occurring while designing public transport vehicles consists in providing an effective control of the door opening systems. The methods of carrying out the investigations presented in the paper include structural and kinematic analysis of the door opening mechanisms and simulation of their operation in applied software. The paper analyses the design and operational peculiarities of the turning-and-shunting mechanism of door opening of electric public transport. The corresponding design of the mechanism is proposed. It is suggested to be driven by pneumatic drive. The simplified diagram of the mechanism is constructed. Structural and kinematic analysis of the mechanism is performed, and the analytical dependencies for describing the motion of its links during the door opening/closing are derived. The main kinematic parameters of the studied mechanism are investigated on the basis of the derived analytical dependencies in MathCAD software, as well as by means of simulating the motion of the solid-state model of the mechanism designed in SolidWorks software. The conclusions about the agreement of the results of theoretical investigations performed on the basis of numerical solving the obtained motion equations and of the virtual experiment (motion simulation in SolidWorks software) are drawn. The analysis of energy efficiency of the investigated turning-and-shunting door opening mechanism of electric public transport is carried out. Prescribing the resistance force acting on the door leaf and calculating the corresponding door motion speed during its closing, the dependency of the nominal power supply of the mechanism drive as a function of corresponding generalized coordinates was deduced. Analyzing the obtained results, the authors have established that the necessary nominal power of the turning-and-shunting mechanism drive is almost twice larger than the necessary nominal power of the widely used leaning-and-shunting mechanism. Further investigations on the subject of the paper can be performed in the direction of developing different control systems providing safe and reliable operation of the considered door opening mechanism driven be electric and pneumatic actuators.

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Tarigan, U., I. Siregar, R. M. Sari, K. Syahputri, and I. Rizkya. "Comparison of first come first served and ant colony algorithm method for door leaf production scheduling." IOP Conference Series: Materials Science and Engineering 1122, no. 1 (March 1, 2021): 012057. http://dx.doi.org/10.1088/1757-899x/1122/1/012057.

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Plarre, Rudy, and Bianca Krüger-Carstensen. "An attempt to reconstruct the natural and cultural history of the webbing clothes moth Tineola bisselliella Hummel (Lepidoptera: Tineidae)." Journal of Entomological and Acarological Research 43, no. 2 (August 20, 2011): 83. http://dx.doi.org/10.4081/jear.2011.83.

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It is generally accepted that the natural habitats of most pest insects can be found outside the synanthropic environment in layers of leaf litter, under bark, as well as in rodent or bird nests. Indeed, most of the common pests have been reported as being facultative nidicolous. Therefore infestation of commodities by pest insects out of these reservoirs is one considerable possibility. However, the likelihood of a pest´s occurrence and survival out-doors largely depends on its ecological potential and competitiveness against other species of the same ecological guild. Some pest species are rarely found in wild habitats, especially in those regions where they are not native and where they have been introduced by man. The fabric pest Tineola bisselliella serves as a good example. Most likely originating in Central or Southern Africa this insect was introduced into Europe probably not earlier than the late 18th century. Being more tolerant to dry environments than other fabric pests its economical importance increased during the 20th century when in-door climates changed because of central heating systems. Its occurrence in out-door natural habitats must be regarded as accidental. Reported founds of webbing clothes moth larvae in bird nests e.g. have been largely overstated in the literature. T. bisselliella should be regarded as an eusynanthropic species.

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Shin, Hyunseop, Wonwoo Kim, Seongwook Kim, and Jaehum Moon. "Design Sensitivity Analysis of a Steel-concrete Double-leaf Blast-resistant Door to Determine the Steel Ratio." Journal of the Korean Society of Hazard Mitigation 19, no. 4 (August 31, 2019): 165–77. http://dx.doi.org/10.9798/kosham.2019.19.4.165.

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El Hajj, Abdel Kader, Helen Rizk, Mariam Gharib, Maysaa Houssein, Vera Talj, Nour Taha, Soha Aleik, and Zinette Mousa. "Management of Tuta absoluta Meyrick (Lepidoptera: Gelechiidae) Using Biopesticides on Tomato Crop under Greenhouse Conditions." Journal of Agricultural Science 9, no. 11 (October 16, 2017): 123. http://dx.doi.org/10.5539/jas.v9n11p123.

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Tuta absoluta is the major insect invading tomato crop under greenhouse and open field conditions in Lebanon. Farmers mainly depend on chemical control to reduce damage caused by the larva. The hazard use of chemical agents can lead to resistance accumulation. The objective of this study is to investigate alternative agents like biopesticides to control this pest. Two field trials were conducted at the Lebanese Agricultural Research Institute (LARI) for two years under greenhouse conditions. In 2014, the first trial was conducted in two greenhouses: 1-control greenhouse without insect proof net (CG); 2-double door Greenhouse with insect proof net (DDG). In 2015, the second trial was conducted only in control greenhouse.Four treatments and control (not treated plot) were adopted in both trials. The biopesticides used in this study were Neem azal and Bacillus thuringiensis. Results of the first trial showed that using insect proof net reduced the captured adults on the water trap as compared with control greenhouse and thus reducing the damaged caused by the larva of tomato leaf miner on leaves and fruits. The adopted treatments have shown significant differences in the number of mines/leaf, live larva/leaf and percent of damaged fruits in both trials compared to the control. Applying Bacillius thuringiensis and neem azal separately and mixing them together have shown a promising alternative method to chemical control.

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Shin, Hyun-Seop, Sung-Wook Kim, Jae-Heum Moon, and Won-Woo Kim. "FE Analysis on the Structural Behavior of a Double-Leaf Blast-Resistant Door According to the Support Conditions." Journal of the Computational Structural Engineering Institute of Korea 33, no. 5 (October 1, 2020): 339–49. http://dx.doi.org/10.7734/coseik.2020.33.5.339.

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Alemu, I. D., and D. S. Boke. "MORPHOLOGICAL CHARACTERIZATION OF COFFEE (Coffea arabica L.) LANDRACES AT SEEDLING STAGE COLLECTED FROM GUJI ZONES." Bangladesh Journal of Plant Breeding and Genetics 30, no. 2 (May 2, 2018): 09–18. http://dx.doi.org/10.3329/bjpbg.v30i2.34540.

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The present study was aimed to determine genetic diversity of Coffea arabica landraces based on morphological characteristics at seedling stage in Guji zones. Three kebeles and twenty-five farmers’ coffee landraces were selected based on availability of Coffea arabica landraces from each district by the guidance of Developmental Agency in the kebele. Coffea arabica seeds were collected and planted at kercha nursery sub-site in plastic pots arranged on randomized block design. Seedling characteristics were collected from one year old randomly selected four coffee seedlings from each plot. The results showed that there were significant variations (p<0.05) between and within Coffea arabica landraces of the district. The seedling height of Coffea arabica collected from Didiba local was highest (11.25) followed by Sorile local (11.17) whereas Ebala local was the least. Coffea arabica from Diqisa local (5.25) was the highest for leaf height followed by Didiba local (5.13), Harobora (5.00) and Wacufora local (5.00). Similarly, Wacufora local (2.05) and Didiba local (2.53) were the highest in leaf width. The Coffea arabica landrace of Qaqali local (6.25) and Harobora local (5.75) were the highest in number of paired leaves. Correlation between the characteristics of coffee seedling showed that seedling height was high and significantly correlated with leaf width (0.62**), number of paired leaves (0.58**), node number (0.57**) and leaf area (0.64**). Similarly, leaf height was high and significantly correlated with leaf width (0.72**) and leaf area (0.77**). Generally, the increase of leaf height increases the leaf width and leaf area. Existence of morphological variation of Coffea arabica at seedling stage was used to determine Coffea arabica diversity in this study area. Therefore, Coffea arabica landraces having high seedling height, leaf height, number of paired leaves and leaf area should get attention during selection for plantation. Additionally, farmers, conservationists and other concerned bodies should take action to conserve and keep the gene pool of these coffees. As a result, it opens the door for biotechnologists to characterize coffee at molecular level and breeder scan take action on it to release superior coffee varieties.

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Fasana, Alessandro, Alessandro Ferraris, Andrea Giancarlo Airale, Davide Berti Polato, and Massimiliana Carello. "Experimental Characterization of Damped CFRP Materials with an Application to a Lightweight Car Door." Shock and Vibration 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/7129058.

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This paper presents a complete design procedure for defining a dynamic model of a Carbon Fibre Reinforced Polymer (CFRP) component with an embedded damping material layer. The experiment to determine the mechanical characteristics of the materials is performed by the Oberst beam technique to provide precise material properties for a Finite Element (FE) model. The technique implemented, namely, the Linear Identification by Polynomial Expansion in the Z-domain (LIPEZ) method, is used to compare the experimental data with the numerical simulation results provided by the modal parameters to be compared with the numerical results. Two automotive components (a leaf spring and an outer shell of front door) have been tested. The research revealed the utter importance of a correct definition of the geometry for the numerical models. Finally, the positive effects for acoustic performance with a thin layer of KRAIBON® SUT9609/24 damping material, included in the stacking sequence of the CFRP component, are highlighted.

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Huang, Li, Steven A. Brooks, Wanlong Li, John P. Fellers, Harold N. Trick, and Bikram S. Gill. "Map-Based Cloning of Leaf Rust Resistance Gene Lr21 From the Large and Polyploid Genome of Bread Wheat." Genetics 164, no. 2 (June 1, 2003): 655–64. http://dx.doi.org/10.1093/genetics/164.2.655.

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Abstract We report the map-based cloning of the leaf rust resistance gene Lr21, previously mapped to a generich region at the distal end of chromosome arm 1DS of bread wheat (Triticum aestivum L.). Molecular cloning of Lr21 was facilitated by diploid/polyploid shuttle mapping strategy. Cloning of Lr21 was confirmed by genetic transformation and by a stably inherited resistance phenotype in transgenic plants. Lr21 spans 4318 bp and encodes a 1080-amino-acid protein containing a conserved nucleotide-binding site (NBS) domain, 13 imperfect leucine-rich repeats (LRRs), and a unique 151-amino-acid sequence missing from known NBS-LRR proteins at the N terminus. Fine-structure genetic analysis at the Lr21 locus detected a noncrossover (recombination without exchange of flanking markers) within a 1415-bp region resulting from either a gene conversion tract of at least 191 bp or a double crossover. The successful map-based cloning approach as demonstrated here now opens the door for cloning of many crop-specific agronomic traits located in the gene-rich regions of bread wheat.

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Margonska, Hanna B. "New Crepidium species (Orchidaceae, Malaxidinae) from the Island of Negros, Philippines." Phytotaxa 172, no. 1 (June 11, 2014): 51. http://dx.doi.org/10.11646/phytotaxa.172.1.7.

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In 2013, when Mr Ravan Schneider with his wife Josephine came back from their photo tour on the Samar Island National Park (Philippines), they made a short stop in the small village of Marabut. At the food kiosk, Schneider came across in the garden next door some terrestrial orchids. Among others, there was a Crepidium plant with conspicuous leaf coloration. One of the plants had a fresh inflorescence, and he asked the owner if he could have this plant. The owner of the plants said that the plants came from about 10 kilometres from Marabut on a logging and mining road. Schneider was given the plant, which was luck because after typhoon Haynan (2013) not much remained of Marabut. In his garden the plants grew well. Upon blooming in November 2013, the plants and flowers were photographed, samples of the plant were dried and some flowers additionally were preserved in Copenhagen mixture for detailed study.

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Bakker, P. S. "Verhaalsfrustratie door en met een SPF: enige beschouwingen naar aanleiding van het arrest Resort of the World/Maple Leaf (HR 7 oktober 2016, ECLI:NL:HR:2016:2285, NJ 2017/124)." Caribisch Juristenblad 6, no. 4 (December 2017): 307–19. http://dx.doi.org/10.5553/cjb/221132662017006004003.

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Yuan, Xu, Kati Laakso, Philip Marzahn, and G. Arturo Sanchez-Azofeifa. "Canopy Temperature Differences between Liana-Infested and Non-Liana Infested Areas in a Neotropical Dry Forest." Forests 10, no. 10 (October 9, 2019): 890. http://dx.doi.org/10.3390/f10100890.

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Lianas (woody vines) are important non-structural elements of all tropical forests. Current field observations across the Neotropics suggest that liana abundance is rising as a result of forest disturbance, increasing atmospheric CO2, and more frequent extreme climate events. Lianas can cause mechanical stress on their host trees, thus increasing mortality, in addition to potentially reducing carbon storage capacity. Furthermore, previous studies have suggested that liana leaves have an overall higher temperature than tree leaves, which presents the question of whether these differences can be extended from the leaf to the canopy. In this context, the ability to detect these temperature differences from a remote sensing platform has so far not been put into test, despite the importance such knowledge can have in large-scale land surface modeling studies and liana extent monitoring. To partially fill this knowledge gap, we acquired thermal infrared data using an unmanned aerial vehicle (UAV) system over an intermediate tropical dry forest in Costa Rica, Central America. Classification results from a previous study in the same area were used to subset the thermal infrared images into liana-infested areas, non-liana infested areas, and forest gaps. The temperature differences between these three image components were then investigated using the Welch and Games–Howell post-hoc statistical tests. Our results suggest that liana-infested areas have, on average, a statistically significant higher temperature than non-liana infested areas. Shadowed forest gaps, used as reference, have a cooler temperature than forest canopies. Our findings on the temperature differences between liana-infested and non-liana infested areas support previous leaf-level observations and open the door to the use of new approaches for the classification and modeling of liana infestation in tropical ecosystems.

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Bungsu, Ario, Triyanto Triyanto, and Tjetjep Rohendi Rohidi. "The Cultural Messages of Pyramid House in Palembang." Catharsis 9, no. 3 (December 31, 2021): 244–52. http://dx.doi.org/10.15294/catharsis.v9i3.45644.

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Abstract Pyramid House in Palembang is one of the works of art that is still very interesting to be researched today. The problem raised in this study aims to analyze the cultural message of the Pyramid House in Palembang. The method used is a qualitative method with a case study research design. The data collection techniques include observation, interviews, and document study. The results showed that in the manufacture of the Pyramid house, the main construction of traditional buildings used wood construction and a stilt system. The foundation used the construction of piles, the walls used boards, the roof used a leaf or shingle roof. The core parts consisted of the roof of the house, the door, the window, the stairs, and the floor of the house. In general, the typical architectural form of the Pyramid House, namely, the roof was shaped like a severed pyramid. Besides, the uniqueness of the house located in its multi-storey shape (kijing) and the walls were made of wood shaped like planks. Then related to the house name Pyramid, it contained two special meanings, namely, Five and Gold. The word five means the number five, while gold means the precious metal of great value. This is also a symbol of the function of the Pyramid house.

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Gado, Ahmed R., Hany F. Ellakany, Ahmed R. Elbestawy, Mohamed E. Abd El-Hack, Asmaa F. Khafaga, Ayman E. Taha, Muhammad Arif, and Samir A. Mahgoub. "Herbal Medicine Additives as Powerful Agents to Control and Prevent Avian Influenza Virus in Poultry – A Review." Annals of Animal Science 19, no. 4 (October 1, 2019): 905–35. http://dx.doi.org/10.2478/aoas-2019-0043.

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AbstractThe complicated epidemiological situation of avian influenza viruses (AIV) caused by continuous emergence of new subtypes with failure of eradication, monitoring and vaccination strategies opens the door to alternative solutions to save the status quo and prevent new disasters for the poultry industry. Using of synthetic antiviral drugs such as neuraminidase and hemagglutinin inhibitors has been limited due to development of drug resistance and expensive commercial application. One of the most promising alternatives is herbal products and botanicals. This review presents a comprehensive and specialized view of in vivo studies of herbal plants in poultry species. Many herbal extracts as Nigella sativa oil, Astragalus, Cochinchina momordica and Sargassum pallidum polysaccharides proved very effective as adjuvants for AIV vaccines. Another beneficial role of herbs is enhancement of host response to vaccination with further better prevention of infection and easier control. For enumeration not inventory, this is best achieved with the use of virgin coconut oil, Echinacea purpurea, Ginseng stem-and-leaf saponins (GSLS), Astragalus polysaccharides (APS), Myrtus communis oil, Garlic powder, Turmeric, Thyme and Curcumin. This review aimed to evaluate most of the in vivo studies performed on poultry species as a step and a guide for scientists and field practitioners in establishment of new effective herbal-based drugs for prevention and control of AIV in poultry.

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Adegoye, Grace, Raja Reddy, Chathurika Wijewardana, and Firas Alsajri. "Soybean Growth, Development and Productivity in Response to Flood Stress at Reproductive Stage." Current Developments in Nutrition 5, Supplement_2 (June 2021): 83. http://dx.doi.org/10.1093/cdn/nzab060_001.

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Abstract Objectives The objectives of this study were to investigate the impact of flooding on: Reproductive, growth, and development Nutrient concentration Soybean productivity and resilient in changing environment Methods An out-door pot-culture experiment was conducted to determine flooding effects on soybean growth and physiology during the reproductive period. Cultivar Asgrow AG5332 was seeded in 5.2 L pots filled with 3:1 by volume fine sand and topsoil and irrigated with full-strength Hoagland's nutrient solution. After 34 days of sowing, treatments were induced flooding at 2.5 cm above the soil surface for 16 additional days. Measurements were made on soil oxygen content and leaf gas exchange and pigment. Growth parameters and plant components biomass were also measured, 66 days after sowing. Results Soil oxygen levels declined rapidly to 0% in around 5-days of flood treatment, but the control remained 18%. The nutrient: N and Mg concentrations significantly decreased with flooding. All plant growth parameters and reproductive potential declined in the treatments at P = 0.001. Pod numbers and weights as a measure of reproductive potential declined in the plants under flood conditions. Conclusions This study confirmed that the soybean plant during the reproductive period is highly sensitive to flooding. Flood-resistant cultivar should be encouraged by farmers to improve crop productivity and food security. Funding Sources United State Soybean Production Board USAID.

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Torres-Sánchez, Jorge, Francisco Javier Mesas-Carrascosa, Luis-Gonzaga Santesteban, Francisco Manuel Jiménez-Brenes, Oihane Oneka, Ana Villa-Llop, Maite Loidi, and Francisca López-Granados. "Grape Cluster Detection Using UAV Photogrammetric Point Clouds as a Low-Cost Tool for Yield Forecasting in Vineyards." Sensors 21, no. 9 (April 28, 2021): 3083. http://dx.doi.org/10.3390/s21093083.

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Yield prediction is crucial for the management of harvest and scheduling wine production operations. Traditional yield prediction methods rely on manual sampling and are time-consuming, making it difficult to handle the intrinsic spatial variability of vineyards. There have been significant advances in automatic yield estimation in vineyards from on-ground imagery, but terrestrial platforms have some limitations since they can cause soil compaction and have problems on sloping and ploughed land. The analysis of photogrammetric point clouds generated with unmanned aerial vehicles (UAV) imagery has shown its potential in the characterization of woody crops, and the point color analysis has been used for the detection of flowers in almond trees. For these reasons, the main objective of this work was to develop an unsupervised and automated workflow for detection of grape clusters in red grapevine varieties using UAV photogrammetric point clouds and color indices. As leaf occlusion is recognized as a major challenge in fruit detection, the influence of partial leaf removal in the accuracy of the workflow was assessed. UAV flights were performed over two commercial vineyards with different grape varieties in 2019 and 2020, and the photogrammetric point clouds generated from these flights were analyzed using an automatic and unsupervised algorithm developed using free software. The proposed methodology achieved R2 values higher than 0.75 between the harvest weight and the projected area of the points classified as grapes in vines when partial two-sided removal treatment, and an R2 of 0.82 was achieved in one of the datasets for vines with untouched full canopy. The accuracy achieved in grape detection opens the door to yield prediction in red grape vineyards. This would allow the creation of yield estimation maps that will ease the implementation of precision viticulture practices. To the authors’ knowledge, this is the first time that UAV photogrammetric point clouds have been used for grape clusters detection.

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König, Adrian, Patrick Neuhaus, Koch Alexander, Schockenhoff Ferdinand, Hafemann Philipp, Bubb Ingrid, and Lienkamp Markus. "CONCEPT DEVELOPMENT PROCESS FOR DOORS OF AUTONOMOUS VEHICLES." Proceedings of the Design Society 1 (July 27, 2021): 701–10. http://dx.doi.org/10.1017/pds.2021.70.

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AbstractVehicle doors have barely changed in recent decades, and nor has the car. Since autonomous driving will lead to changes in vehicles and how they are used, their doors will also have to be rethought. In the project UNICARagil, researchers from several universities in Germany design and build four prototypes of driverless and autonomous vehicles, which are developed based on a new and modular architecture. As part of this, we developed a concept including a prototype of an automated door system. In this paper, we present our concept development process adapted for door systems of autonomous vehicles. Based on the vehicle concept development process, it should help researchers and engineers to select and design new door concepts in an early phase. At the end, by means of an example, we present the prototype of our door concept as well as a boarding user study we carried out. This study helps evaluate and improve the boarding comfort of future door concepts.

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Prieto, Samuel A., Antonio Adán, Andrés S. Vázquez, and Blanca Quintana. "Passing through Open/Closed Doors: A Solution for 3D Scanning Robots." Sensors 19, no. 21 (October 31, 2019): 4740. http://dx.doi.org/10.3390/s19214740.

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In this article, a traversing door methodology for building scanning mobile platforms is proposed. The problem of passing through open/closed doors entails several actions that can be implemented by processing 3D information provided by dense 3D laser scanners. Our robotized platform, denominated as MoPAD (Mobile Platform for Autonomous Digitization), has been designed to collect dense 3D data and generate basic architectural models of the interiors of buildings. Moreover, the system identifies the doors of the room, recognises their respective states (open, closed or semi-closed) and completes the aforementioned 3D model, which is later integrated into the robot global planning system. This document is mainly focused on describing how the robot navigates towards the exit door and passes to a contiguous room. The steps of approaching, door-handle recognition/positioning and handle–robot arm interaction (in the case of a closed door) are shown in detail. This approach has been tested using our MoPAD platform on the floors of buildings composed of several rooms in the case of open doors. For closed doors, the solution has been formulated, modeled and successfully tested in the Gazebo robot simulation tool by using a 4DOF robot arm on board MoPAD. The excellent results yielded in both cases lead us to believe that our solution could be implemented/adapted to other platforms and robot arms.

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Schultz, Ulrich, and Margareth Heuveling. "Lean werken door TWI." TPO - De Praktijk 14, no. 2 (April 2019): 36–38. http://dx.doi.org/10.1007/s12503-019-0020-6.

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S.Kom, Ferry Sudarto, Eka Purwandari, and Aldien Sora Andrea. "PROTOTIPE PENGONTROLAN PINTU GUNA MENGAMANKAN NASKAH SOAL UJIAN NASIONAL PADA SMA NEGERI 11 TANGERANG." CCIT Journal 11, no. 1 (February 20, 2018): 82–94. http://dx.doi.org/10.33050/ccit.v11i1.561.

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Research on "PROTOTYPE DOOR CONTROLLING TO SAVE NATIONAL EXAM SCRIPT AT 11 SENIOR HIGH SCHOOL TANGERANG" aims to provide security benefits in the national exam deception problems. This research was carried out by making a prototype in the form of a door with a security system using technologies of embedded systems. Namely to control a door through Android smartphone. This is because the security system is not running optimally so often lead to deception. Therefore, we need a system to facilitate and secure the national examination script . All this time during the security room to store national test script using only a padlock. This research will provide an overview of the complex mechanisms such as how a door will lock securely using an application on Android smarthphone as the key. The prototype uses a door control basic 4 android as an interface between users. By using Bluetooth as a sensor signal to the sender to call the personal computer (pc) database and added arduino uno as a DC motor controllers. Prototype controlling these doors can be a reference to the department in dealing with security issues manuscript national exam

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De Luca, Roberto. "Sliding doors." Revista Brasileira de Ensino de Física 30, no. 3 (August 21, 2008): 3303.1–3303.6. http://dx.doi.org/10.1590/s1806-11172008005000003.

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Looking closely to the mechanism which make sliding doors move, one sees that the motion of the commonly used objects can be understood by solving a problem related to the motion of blocks and pulleys. The system is by itself interesting to be modelled as a problem in Newtonian mechanics, and the solution of the equation of the motion can lead us to estimate the time it takes for a sliding door to open or close.

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Vos, Jozef De. "Koning Lear door het Nederlands Toneel Gent." Documenta 5, no. 1 (April 21, 2019): 5–21. http://dx.doi.org/10.21825/doc.v5i1.10811.

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HAKEM, HESHAM, MONA F. ALI, MIROSLAV BÁRTA, and ASHRAF YOUSSEF. "ASSESSMENT OF DETERIORATION PROCESS IN EXPOSED CARVED LIMESTONE FALSE DOOR OF ABUSIR ARCHAEOLOGICAL AREA." Journal of Science and Arts 21, no. 1 (March 30, 2021): 221–34. http://dx.doi.org/10.46939/j.sci.arts-21.1-b01.

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Carved limestone false door dating back to the late Sixth Dynasty or the First Intermediate Period in Abusir archaeological area suffers from many physiochemical and mechanical deterioration factors, which lead to various deterioration phenomena, such as distort the carvings, decorations, the disappearance of paint, cracks in different depths, and salt calcification. It was found in the fill of Shaft 5 in the tomb AS 79 at Abusir South, Excav. No. 9/AS79/2015 and located in the storeroom of Czech Excavation in Abusir area. The current work aims to study the type of limestone which the false door is made of, and to know if there were colors on the false door or not, also to know if there were deterioration mechanisms that affect the carved limestone false doors of Abusir to evaluate the deterioration ratio in stone structure and the effects of surrounding environmental factors on stone. The investigation and characterization processes of archaeological limestone samples were carried out by polarizing microscopy (PLM), optical microscopy (OM), scanning electron microscopy (SEM-EDX) micro-analysis system, X-ray diffraction (XRD), X-ray fluorescence (XRF), and Fourier transform infrared spectroscopy (FTIR). The results revealed that the limestone material of the false door belongs to micrite limestone with very fine grains and needs to be conserved.

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Lalrinmawia, Jonathan, Kham Suan Pau, and Ramesh Chandra Tiwari. "Study on the intensity of radiation attenuated by protective barriers in diagnostic X-ray installations." Science Vision 19, no. 2 (June 30, 2019): 43–50. http://dx.doi.org/10.33493/scivis.19.02.08.

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The main objective of the present study is to find out the intensity of radiation attenuated by different types of patient entrance doors (PED) as well as control panel (CP) protective barriers in diagnostic X-ray installations. To measure the intensity of ionizing radiation, ion chamber survey meter was used; all measurements were performed in freeze mode. In setting maximum accelerating potential, minimum tube current and fixed exposure time, a water phantom was exposed through maximum field size. Radiation exposure rates were measured at CPs as well as PEDs with and without barriers. In chest mission, radiation rates with PED ranged from 0.3 µSv/h to 0.7 mSv/h and without PED 0.2 mSv/h to 1.2 mSv/h. At the same time, in couch mission, radiation rates measured behind PED ranged from 0.3 µSv/h to 2.2 mSv/h and 0.03 mSv/h to 2.25 mSv/h in front of PED. All institutions showed higher exposure rates without PED; all types of doors considerably attenuated radiation. Among different types of door, lead-lined door attenuated 99.53% in chest mission and 97.44% in couch mission. While plywood doors attenuated approximately 40% of the incident radiation, it is more or less similar as air does in every half meter away from the phantom. Radiation rates in chest missions with CP barriers ranged from 2 µSv/h to 0.38 mSv/h, while 0.4 mSv/h to 2.35 mSv/h without CP barriers. In couch missions, radiation rates measured with CP barriers varied from 4 µSv/h to 0.6 mSv/h whereas without CP barriers from 0.7 mSv/h to 5 mSv/h. There was a significant difference between radiation measured behind and in front of the CP barriers. Among them, the percentage of attenuation was high in lead and concrete barriers.

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Hochstrasser, L., D. Fröhlich, A. R. Schneeberger, S. Borgwardt, U. E. Lang, R. D. Stieglitz, and C. G. Huber. "Long-term reduction of seclusion and forced medication on a hospital-wide level: Implementation of an open-door policy over 6 years." European Psychiatry 48, no. 1 (2018): 51–57. http://dx.doi.org/10.1016/j.eurpsy.2017.09.008.

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AbstractBackgroundPsychiatric inpatient treatment is increasingly performed in settings with locked doors. However, locked wards have well-known disadvantages and are ethically problematic. In addition, recent data challenges the hypothesis that locked wards provide improved safety over open-door settings regarding suicide, absconding and aggression. Furthermore, there is evidence that the introduction of an open-door policy may lead to short-term reductions in involuntary measures. The aim of this study was to assess if the introduction of an open-door policy is associated with a long-term reduction of the frequency of seclusion and forced medication.MethodIn this 6-year, hospital-wide, longitudinal, observational study, we examined the frequency of seclusion and forced medication in 17,359 inpatient cases admitted to the Department of Adult Psychiatry, Universitäre Psychiatrische Kliniken (UPK) Basel, University of Basel, Switzerland. In an approach to enable a less restrictive policy, six previously closed psychiatric wards were permanently opened beginning from August 2011. During this process, a systematic change towards a more patient-centered and recovery-oriented care was applied. Statistical analysis consisted of generalized estimating equations (GEE) models.ResultsIn multivariate analyses controlling for potential confounders, the implementation of an open-door policy was associated with a continuous reduction of seclusion (from 8.2 to 3.5%; ηp2 = 0.82; odds ratio: 0.88) and forced medication (from 2.4 to 1.2%; ηp2 = 0.70; odds ratio: 0.90).ConclusionThis underlines the potential of the introduction of an open-door policy to attain a long-term reduction in involuntary measures.

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Venås, Bård, Anders Welde Vikan, Merethe Cecilie Lind, and Trond Thorgeir Harsem. "Air Flow Door Barrier for Airborne Infection Isolation Rooms." E3S Web of Conferences 111 (2019): 02063. http://dx.doi.org/10.1051/e3sconf/201911102063.

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Airborne Infection Isolation Rooms (AIIRs) are used in hospitals to counter the spread of airborne infections. These rooms usually work well as long as the doors to the patient rooms are closed. However, passage through open doorways initiates air flows that may lead to containment failure. This paper presents a new “Air Flow Door Barrier” system for AIIRs and analyses its efficiency through CFD simulations. The overset mesh method is used to represent a hinged door and a person transiting from the patient room to the anteroom. The new system consists of a fan which introduces filtered patient room air into the anteroom through large displacement diffusors. It runs in synchronization with the door operator and produces an evenly distributed velocity across the open doorway. It is found that the system has the potential to remove nearly all transfer of air out from the patient room. The development of the system is part of an ongoing project aimed at finding cost-effective solutions for retrofitting existing patient rooms. However, the system also has the potential to be beneficial when considering inclusion in new standard AIIRs.

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Šliková, S., E. Gregová, P. Bartoš, A. Hanzalová, M. Hudcovicová, and J. Kraic. "Development of wheat genotypes possessing a combination of leaf rust resistance genes Lr19 and Lr24." Plant, Soil and Environment 50, No. 10 (December 10, 2011): 434–38. http://dx.doi.org/10.17221/4055-pse.

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Endopeptidase allele Ep-D1c and DNA marker-assisted selection have been used for the incorporation of Lr19 + Lr24 leaf rust resistance genes combination into adapted commercial winter wheat cultivars. The first step was the transfer of the gene Lr19 from the donor cultivar Agrus into acceptor cultivars Simona and Lívia. The progenies possessing the null allele Ep-D1c linked to the gene Lr19 have been screened for their resistance to leaf rust by isolate 4332 SaBa. The plants homozygous properties at the Ep-D1c locus and resistant against leaf rust were used for crossing with NIL Thatcher/Lr24 – a donor of the gene Lr24. Plants possessing both Lr genes were selected from F2 population by STS and isozyme markers linked to the Lr genes. Progenies of 18 F2 plants have been selected by STS marker and tested for resistance against leaf rust. Results obtained with isozyme and STS markers corresponded with resistance testing. Altogether 6 progenies of F3 generation possessing a resistance gene combination of Lr19 + Lr24 in a homozygous condition were developed.

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Novitasari, Ratna, and Irwan Iftadi. "Analisis Lean Manufacturing untuk Minimasi Waste pada Proses Door PU." Jurnal INTECH Teknik Industri Universitas Serang Raya 6, no. 1 (June 30, 2020): 65–74. http://dx.doi.org/10.30656/intech.v6i1.2045.

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PT XYZ merupakan sebuah perusahaan manufaktur yang bergerak dalam penyedia alat-alat rumah tangga, salah satunya adalah kulkas. Pada proses produksi Door PU di divisi refrigerator terdapat permasalahan pencapaian output produksi yang lebih rendah dibandingkan dengan target produksi pada Door PU produk kulkas 1 pintu serta freezer. Penelitian ini membahas mengenai analisis lean manufacturing pada proses identifikasi dan minimasi waste yang ada pada proses Door PU di divisi refrigerator PT XYZ. Penelitian dilakukan dengan 4 tahapan. Tahap pertama adalah pembuatan Value Stream Mapping (VSM) untuk menunjukan keseluruhan proses produksi Door PU. Tahap kedua dilakukan identifikasi waste dan break down tahapan proses produksi dalam bentuk process activity mapping. Tahap ketiga adalah proses identifikasi akar permasalahan dari waste yang telah diketahui dengan menggunakan root cause analysis - 5 Why's. Berdasarkan penelitian yang dilakukan, didapatkan hasil waste berupa waiting dan defect, dengan nilai operasi value added sebesar 11,54%, non value added 7,69%, dan operasi necessary non value added sebesar 76,43%. Rekomendasi perbaikan mampu mengurangi total aktivitas proses dari 26 menjadi 24 serta peningkatan nilai PCE menjadi 31,45%.

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Gore, Madhuri A., and Deepika Akolekar. "Banana leaf dressing for skin graft donor areas." Burns 29, no. 5 (August 2003): 483–86. http://dx.doi.org/10.1016/s0305-4179(03)00049-4.

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Šikšnianas, T. "Genetic control and combining ability of resistance to American mildew, Septoria leaf spot and gall mite in black currant." Plant Protection Science 38, SI 2 - 6th Conf EFPP 2002 (December 31, 2017): 596–99. http://dx.doi.org/10.17221/10565-pps.

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The character of gene interaction determining resistance to fungal diseases and gall mite was investigated by topcrossing method in black currant cultivars and forms of different genetic nature. For crossings three maternal varieties (testers) and seven paternal varieties and forms of different resistance to American mildew, Septoria leaf spot and gall mite were employed. Eleven cultivars and forms were assessed that differed in combining ability of resistance to fungal diseases and gall mite. Resistance to American mildew (Sphaerotheca mors-uvae) and Septoria leaf spot (Mycosphaerella ribis) is determined by genes with additive effects. In genetic control for resistance to gall mite (Cecidophyopsis ribis) important are both genes – with additive and non-additive (dominant and epistatic) effects. Black currant form D16/1/-25 was ascertained to be a donor of resistance to American mildew and Septoria leaf spot and cultivar Ben Gairn – a donor of resistance to gall mite.

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Seo, Dong-Gil, Mi-Seon Kim, Seon-Hwan Gu, and Young-Joo Song. "A Study on the Safety of Evacuation according to Evacuation Delay Time and Fire Door Openness: Based on Residence Types." Fire Science and Engineering 34, no. 2 (April 30, 2020): 156–65. http://dx.doi.org/10.7731/kifse.0c0708c4.

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In this paper, the application of evacuation delay time (Cognition time + initiation time) and examine the degree of opening of fire doors in households for evaluating evacuation safety and suggest a realistic alternative. In order to proceed with this study, first of all, the preliminary investigation on evacuation safety evacuation of residential-type buildings (Apartment, urban living houses, etc.) among the performance-oriented design targets of Gwangju Metropolitan City, which was implemented until June 2018. Then, for the two representative types that are commonly used among the previously surveyed buildings, evacuation delay time is applied to W1, W2, and respectively simulating the opening of the doors is applied to th full open, 1/4 open, the leakage gap and evacuation safety evaluation was performed. As a result of evaluating evacuation safety was found that it is difficult to secure evacuation safety regardless of evacuation delay time W1 and W2 when the fire door is fully open and 1/4 open, Only when the leakage gap is applied evacuation safety was ensured even if evacuation delay time W2 was applied. Therefore, when a residential building is subject to performance-oriented design, evaluating the application of W2 rather than W1 is considered for evacuation delay time to reflect concern about privacy infringement due to CCTV installation, etc. In order to secure the Smoke blocking performance of the fire door and to improve the performance-oriented design, I would like to propose to consider the method of applying a leak gap to the degree of opening of the fire door. Through this, it is expected that the performance-oriented design will be a step further by performing evacuation safety evaluation with more realistic data.

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Batubara, Sumiharni, and Raden Abdurrahman Halimuddin. "PENERAPAN LEAN MANUFACTURING UNTUK MENINGKATKAN KAPASITAS PRODUKSI DENGAN CARA MENGURANGI MANUFACTURING LEAD TIME STUDI KASUS: PT ORIENTAL MANUFACTURING INDONESIA." PENELITIAN DAN KARYA ILMIAH 1, no. 1 (May 30, 2016): 49. http://dx.doi.org/10.25105/pdk.v1i1.431.

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PT Oriental Manufacturing Indonesia is a company engaged in the manufacturing industries that produce plastics components for the automotive industry. The main problem that occurs is the target production of Final Assy. Front Door is not reached as a manufacturing lead time (MLT) is too long.The purpose of this research is to reduce the Manufacturing Lead Time (MLT) so that production targets can be achieved. Lean Manufacturing approach used to reduce the waste that occurs. The first step is to create Value Stream Mapping (VSM), which describes the overall process. From the VSM waste can be identified in the some activities (changeover mold) and one activity (final inspection). MLT improvement performed by using Single Minute Exchange of Dies on mold changeover activity and Left Hand Right Hand Mapping on the final inspection process. As the result of improvement, the value of process cycle efficiency has increased by 11.35% from 36,88% to 48,55%. Manufacturing Lead Time has decreased from 35.327 seconds to 26.834 seconds.

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Paino, Maria, Rebecca L. Boylan, and Linda A. Renzulli. "The Closing Door." Sociological Perspectives 60, no. 4 (October 26, 2016): 747–67. http://dx.doi.org/10.1177/0731121416674948.

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Charter schools are promoted by policy makers and advocates as a way to reduce educational inequality. Charter schools tend to enroll higher proportions of black students than do traditional public schools. However, the accountability function of charter schools means that these schools are also more likely to close than traditional public schools. A high incidence of closure can lead to educational instability with students moving in and out of charter schools and traditional schools. We use critical race theory to build on prior work, examining the factors that may promote or constrain charter school closure. Specifically, we ask, how do the racial demographics of a charter school affect its likelihood of closure? Our findings reveal that as the proportion of black students in a charter school increases, so too does its likelihood of closings. Our work suggests that the promotion of charter schools as avenues of racial equity may be misleading.

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Ford, Dawn, Rosa Cantu, Zachary North, Tes Cherian, Kavina Patel, and Jaleesa Brumfield. "Addressing Health Inequities in South Chattanooga: Lead Contamination and Childhood Lead Poisoning." Proceedings 44, no. 1 (November 5, 2019): 10. http://dx.doi.org/10.3390/iecehs-2-06396.

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Soil lead contamination is an environmental health risk that greatly affects children in Chattanooga, Tennessee. The Southside Chattanooga Lead Superfund Site was added to the National Priorities List in late 2018 by the Environmental Protection Agency (EPA). The EPA has designated the clean-up threshold for soil lead contamination to be equal to or over 360 parts per million. For the EPA to conduct soil testing and proceed with clean-up, a signed access authorization letter from the tenant or property owner must be submitted. As of 7 May 2019, there are still 4371 properties to test with an estimated 1100 expected to be above the remediation threshold. Despite mailing the letters and having several public meetings, the rate of return is approximately thirty percent for access authorization forms. To increase the response rate, local non-profit agencies, the University of Tennessee at Chattanooga (UTC) Lions Club, and the UTC Master’s in Public Health program have been involved in educating the community. Efforts include community health fairs, grant-funded community-based blood lead testing for children, and a door-to-door canvassing campaign where residents are informed of the issue, provided with educational materials, and asked to sign and return access authorization letters to the EPA. The impact of community engagement is measured by the number/proportion of residents engaged, the number of signed authorization forms submitted, and the number of children tested for elevated blood lead levels. This poster presentation will discuss lead contamination in Chattanooga, and the results of our engagement work in the community.

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Brewington, Janice G. "Lead: Opening Doors to Leadership Success." Nursing Education Perspectives 35, no. 4 (2014): 270. http://dx.doi.org/10.1097/00024776-201407000-00014.

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Kaye, J. "Report may lead to population collection by the back door." BMJ 323, no. 7313 (September 15, 2001): 632. http://dx.doi.org/10.1136/bmj.323.7313.632.

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German, E. K., T. Mukherjee, D. Osborne, and A. B. Copperman. "Does Increasing Ovum Donor Compensation Lead to Differences in Donor Characteristics?" Fertility and Sterility 74, no. 3 (September 2000): S62. http://dx.doi.org/10.1016/s0015-0282(00)00886-4.

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German, Erica K., Tanmoy Mukherjee, Deserie Osborne, and Alan B. Copperman. "Does increasing ovum donor compensation lead to differences in donor characteristics?" Fertility and Sterility 76, no. 1 (July 2001): 75–79. http://dx.doi.org/10.1016/s0015-0282(01)01840-4.

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Wasylyshyn, Karol M. "Behind the door: Keeping business leaders focused on how they lead." Consulting Psychology Journal: Practice and Research 60, no. 4 (2008): 314–30. http://dx.doi.org/10.1037/a0014041.

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Lyons, John L. "Effective Donor Dopants for Lead Halide Perovskites." Chemistry of Materials 33, no. 15 (July 23, 2021): 6200–6205. http://dx.doi.org/10.1021/acs.chemmater.1c01898.

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Niederwieser, Josephina G., and Bela M. Vcelar. "Regeneration of Lachenalia Species from Leaf Explants." HortScience 25, no. 6 (June 1990): 684–87. http://dx.doi.org/10.21273/hortsci.25.6.684.

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The physiological stage of donor plants determined to a great extent the morphogenic potential of Lachersalia (Jacq.) hybrid leaves, but the optimal stage for various cultivars was different. Contact of the bud-forming adaxial epidermal cells with the medium did not significantly stimulate in vitro bud formation on Lachenalia leaf explants, but resulted in the formation of callus from the buds of certain hybrids. Wounding on either the adaxial or the abaxial side of leaves had a stimulating effect on certain hybrids, but others did not respond significantly. A reduction in the length of explants from 10 to 3.3 mm resulted in an increase in the total number of buds formed by a specific amount of explant tissue (width of explant = 15 mm).

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Journal articles on the topic 'Door leaf'

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