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Articles 70231 - 70260 of 302581
Full-Text Articles in Physical Sciences and Mathematics
Modeling And Analyzing Of Battlefield Information Sharing Effectiveness Based On Complex Networks, Zhang Qiang, Jianhua Li, Shen Di
Modeling And Analyzing Of Battlefield Information Sharing Effectiveness Based On Complex Networks, Zhang Qiang, Jianhua Li, Shen Di
Journal of System Simulation
Abstract: Battlefield information sharing is the basis of acquiring information superiority to get decision and action superiority in information war。Aiming at the influence of information sharing on operational effectiveness, internal essence of the information sharing activity in information warfare was qualitatively descripted. By using operational network model which clearly reflects node's function and edge's type, the operational network with different information sharing degree was constructed, and the characteristic which depicts information sharing effectiveness was defined, and the influence law of information sharing degree on sharing effectiveness measurement indexes of operational network with simulation was analyzed. The simulation result validates that …
Simulator Of Penicillin Fermentation Process In Matlab/Simulink Environment, Lingjian Ye, Jianghua Cheng
Simulator Of Penicillin Fermentation Process In Matlab/Simulink Environment, Lingjian Ye, Jianghua Cheng
Journal of System Simulation
Abstract: For control and optimization of penicillin fermentation process, a suitable simulator should be developed. PenSim is a world-wide famous simulator for penicillin process, however, it can only generate process data for the purpose of analysis, but not applicable for the real-time control and production optimization. The internal models in Pensim were comprehensively investigated and a new penicillin fermentation simulator was developed in the environment of Matlab/Simulink. The simulator preserves highly kinetic identity with Pensim, yet allowing users to freely define the trajectories of control variables during operation (e.g. the feed rate of substrate), thus suitable for the study of …
Partially Observed System Design Method Realizing Unambiguous Fault Diagnosis, Fang Huan, Lu Yang, Yue Feng, Junming Guan
Partially Observed System Design Method Realizing Unambiguous Fault Diagnosis, Fang Huan, Lu Yang, Yue Feng, Junming Guan
Journal of System Simulation
Abstract: The construction methodology of partially observed system realizing unambiguous fault diagnosis was studied. The observable places determination algorithm OPD was proposed, and the necessary and sufficient condition for solution existence of the algorithm with polynomial time complexity was presented, then it is proved that all transitions in the modeled system could be distinguished by setting SO. The system operating state determination algorithm SOSD was presented based on the OPD algorithm. The proposed SOSD algorithm was realized by 1-step forward marking computation of observable places set $S_O$, it doesn't rely on the initial marking $M_0$ of the controlled …
Light Illumination Simulation Approach For Remote Sensing Image Based On Geometric Mapping, Chenhao Wang
Light Illumination Simulation Approach For Remote Sensing Image Based On Geometric Mapping, Chenhao Wang
Journal of System Simulation
Abstract: Light Illumination is one of the most important parts of imaging simulation research. A new light illumination simulation approach for remote sensing image based on geometry mapping was proposed. The first step was the geometric calibration of the input image, and the visible light reflection property was extracted by the inverse rendering approach; Second, geometric information of each pixel in the input image was obtained by geometric mapping; and the simulation output of new light illumination condition could be got with the imaging calculation in the image space. Results show that the new approach can achieve simulation image of …
The Relationship Between Impact Energy And Glass Fracture Via .177 Caliber Steel Bbs, Jocenel Beach
The Relationship Between Impact Energy And Glass Fracture Via .177 Caliber Steel Bbs, Jocenel Beach
Student Theses
Fractured glass is often found at shooting scenes and can provide useful information for crime scene reconstruction. Mechanical glass fracture from a projectile impact can result in different types of fracture patterns. The degree of fracture depends on several factors including: type of glass, the thickness of the glass, curvature (if any), distance from the muzzle, contact angle, and type of projectile. Correlating impact energy to the degree of glass fracture can provide useful information regarding the muzzle-to-target distance for a particular firearm/ammunition combination. This research focuses on the projectile impact velocity of .177 steel BBs shot from a pneumatic …
Determining How Increasing Precipitation Intensity Will Impact Rangelands In Utah., Karen H. Beard, Andrew Kulmatiski
Determining How Increasing Precipitation Intensity Will Impact Rangelands In Utah., Karen H. Beard, Andrew Kulmatiski
Browse all Datasets
As the atmosphere warms, precipitation events become larger, but less frequent. Yet, there is fundamental disagreement about how increased precipitation intensity will affect vegetation. Walter’s two-layer hypothesis and experiments testing it have demonstrated that precipitation intensity can increase woody plant growth. Observational studies have found the opposite pattern. Not only are the patterns contradictory, but inference is largely limited to grasslands and savannas. We tested the effects of increased precipitation intensity in a shrub-steppe ecosystem that receives >30% of its precipitation as snow. We used 11 (8 m x 8 m) shelters to collect and redeposit rain and snow as …
Chemical Composition Of Panicum Maximum Planted With Different Manure Sources, O. M. Arigbede, Jimoh A. Olanite, Alaba O. Jolaosho, Olufemi S. Onifade, U. Y. Anele, A. O. Amole
Chemical Composition Of Panicum Maximum Planted With Different Manure Sources, O. M. Arigbede, Jimoh A. Olanite, Alaba O. Jolaosho, Olufemi S. Onifade, U. Y. Anele, A. O. Amole
IGC Proceedings (1993-2023)
No abstract provided.
Effects Of Soil Ph And Fe2+ Content On Growth And Physiology Of Alfalfa, Yuan An, Jianfeng Li, Jixiong Sun
Effects Of Soil Ph And Fe2+ Content On Growth And Physiology Of Alfalfa, Yuan An, Jianfeng Li, Jixiong Sun
IGC Proceedings (1993-2023)
No abstract provided.
The Study Of Physico‐Chemical Characteristics Of Soil‐Vegetation Relationships In Saliferous And Gypsiferous Soils Of Winter Rangelands In Eshtehard (Iran), A. Ahmadi, E. Moghiseh, M. Peyrowi, S. Mahmoodi
The Study Of Physico‐Chemical Characteristics Of Soil‐Vegetation Relationships In Saliferous And Gypsiferous Soils Of Winter Rangelands In Eshtehard (Iran), A. Ahmadi, E. Moghiseh, M. Peyrowi, S. Mahmoodi
IGC Proceedings (1993-2023)
No abstract provided.
Organic Fertilization Of Sorghum Seeds For Forage For Use By Monogastric And Ruminant Livestock, Elizabeth Cruz, J. Ly, R. Almaguel, V. Martínez, M. D. García
Organic Fertilization Of Sorghum Seeds For Forage For Use By Monogastric And Ruminant Livestock, Elizabeth Cruz, J. Ly, R. Almaguel, V. Martínez, M. D. García
IGC Proceedings (1993-2023)
No abstract provided.
A New Two-Parametric ‘Useful’ Fuzzy Information Measure And Its Properties, Saima Manzoor Sofi, Safina Peerzada, Mirza Abdul Khalique Baig
A New Two-Parametric ‘Useful’ Fuzzy Information Measure And Its Properties, Saima Manzoor Sofi, Safina Peerzada, Mirza Abdul Khalique Baig
Journal of Modern Applied Statistical Methods
A ‘useful’ fuzzy measure of order α and type β is developed. Its validity established with a numerical example.
Relativity Lite: A Pictorial Translation Of Einstein’S Theories Of Motion And Gravity, Jack C. Straton
Relativity Lite: A Pictorial Translation Of Einstein’S Theories Of Motion And Gravity, Jack C. Straton
PDXOpen: Open Educational Resources
Relativity Lite is designed for the General Astronomy sequence (PH 361-2U, SCI 315-6U) whose primary book glosses over Special Relativity and General Relativity while trying to explain the Cosmology that is based on those subjects. Relativity Lite translates the mathematical equations conventional relativity texts rely upon into pictures that are readily understood and contain within them the mathematical essentials. This book provides the comprehensive coverage needed to understand, in sufficient depth, these three linked areas of our reality.
Readers seeking this knowledge on their own, and those in other courses for nonscientists, may also find it helpful.
Adopt/Adapt
If you …
Estimation Of The Compaction Characteristics Of Soils Using The Static Compaction Method, Kamil Kayabali, Ramin Asadi̇, Mustafa Fener, Orhan Di̇kmen, Farhad Habi̇bzadeh, Özgür Aktürk
Estimation Of The Compaction Characteristics Of Soils Using The Static Compaction Method, Kamil Kayabali, Ramin Asadi̇, Mustafa Fener, Orhan Di̇kmen, Farhad Habi̇bzadeh, Özgür Aktürk
Bulletin of the Mineral Research and Exploration
Ground improvement using mechanical stabilization is commonly applied by performing the standard Proctor compaction test, which requires a significant quantity of soil, usually obtained from open pits. A static compaction test is an alternative laboratory compaction test. Although researchers have shown that the results of miniature size static compaction tests are comparable with that of standard Proctor tests in terms of the maximum dry density and the optimum water content, no attempt has been made to compare the two fundamental properties of the compacted soil: undrained shear strength and hydraulic conductivity. The scope of this investigation was to estimate the …
Growing Season Air Mass Equivalent Temperature (TE) In The East Central Usa, Dolly Na-Yemeh, Rezaul Mahmood, Gregory Goodrich, Keri Younger, Kevin Cary, Joshua D. Durkee
Growing Season Air Mass Equivalent Temperature (TE) In The East Central Usa, Dolly Na-Yemeh, Rezaul Mahmood, Gregory Goodrich, Keri Younger, Kevin Cary, Joshua D. Durkee
School of Natural Resources: Faculty Publications
Equivalent temperature (TE), which incorporates both dry (surface air temperature, T) and moist heat content associated with atmospheric moisture, is a better indicator of overall atmospheric heat content compared to T alone. This paper investigates the impacts of different types of air masses on TE during the growing season (April–September). The study used data from the Kentucky Mesonet for this purpose. The growing season was divided into early (April–May), mid (June–July), and late (August–September). Analysis suggests that TE for moist tropical (MT) air mass was as high as 61 and 81 °C for the early and …
Effect Of Boron Fertilizer On Density, Growth, Seed Yield And Nutrient Concentrations Of Centrosema Pubescens Grown In Humid Subtropical Areas Of Yunnan In China, Meifen Huang, Zhanxing He, Jiaxiang Kui, Yi Zheng, Ziwei Zhou, Kehui Lin
Effect Of Boron Fertilizer On Density, Growth, Seed Yield And Nutrient Concentrations Of Centrosema Pubescens Grown In Humid Subtropical Areas Of Yunnan In China, Meifen Huang, Zhanxing He, Jiaxiang Kui, Yi Zheng, Ziwei Zhou, Kehui Lin
IGC Proceedings (1993-2023)
No abstract provided.
Effects Of Yearly Simulated Temperature Rise And Nitrogen Deposition On Soil Nutrient In The Songnen Meadow Steppes Of Northeast China, L. J. Hu, D. L. Wang, W. W. Wang, J. X. Guo
Effects Of Yearly Simulated Temperature Rise And Nitrogen Deposition On Soil Nutrient In The Songnen Meadow Steppes Of Northeast China, L. J. Hu, D. L. Wang, W. W. Wang, J. X. Guo
IGC Proceedings (1993-2023)
No abstract provided.
Effects Of Microbiotic Crust Nutrients On The Different Vegetations, Zhi He, Yong Gao, Hailong Zhang, Ruiping Zhou, Zhiying Mi
Effects Of Microbiotic Crust Nutrients On The Different Vegetations, Zhi He, Yong Gao, Hailong Zhang, Ruiping Zhou, Zhiying Mi
IGC Proceedings (1993-2023)
No abstract provided.
A Strategy To Predict The Global Warming Gas From Stock Farming —Potential Scaling Law Of The Released Methane From Livestock—, Toshiaki Nakashima, Tsuneyoshi Matsuoka, Yuji Nakamura
A Strategy To Predict The Global Warming Gas From Stock Farming —Potential Scaling Law Of The Released Methane From Livestock—, Toshiaki Nakashima, Tsuneyoshi Matsuoka, Yuji Nakamura
Progress in Scale Modeling, an International Journal
This work examines a scaling approach to predict the amount of methane released from the daily activity of livestock on farms. The subject animals are ruminants, i.e. having rumen or a ruminant stomach, that generates methane through digestion processes via several microbial fermentation steps. The produced methane is mixed into their breathing and released into the atmosphere. Existing data on methane released from various kinds of ruminant livestock were correlated as a power function of an animal’s weight, with an exponent near 0.92. This value is larger than a value of 0.75 which was related to the general metabolism rates …
Cracking During Flame Spread Over Pyrolyzing Solids, Yen Nguyen, Indrek S. Wichman, Thomas J. Pence
Cracking During Flame Spread Over Pyrolyzing Solids, Yen Nguyen, Indrek S. Wichman, Thomas J. Pence
Progress in Scale Modeling, an International Journal
A theoretical and numerical model for the degradation of solid materials in combustion is developed. As solid materials are heated by the flame, they undergo an internal thermo- chemical breakdown process known as pyrolysis. As the pyrolysis front propagates into the sample, a charring layer is left behind which contains voids, fractures and defects. Cracks propagate to release tensile stresses accumulated when the sample is losing mass. The crack front may precede the pyrolysis front into the sample. Crack patterns and fracture behaviors vary depending on material properties and heating level and distribution. Cracks cause loss of material integrity by …
The Model Area In Successful Lean Transformation And Scale Modeling, William Cooper, M. Abbot Maginnis, David Parsley, Kozo Saito
The Model Area In Successful Lean Transformation And Scale Modeling, William Cooper, M. Abbot Maginnis, David Parsley, Kozo Saito
Progress in Scale Modeling, an International Journal
The True Lean System Program at the University of Kentucky was created in 1994 to study how the development of the Toyota Production System (TPS) contributes to Toyota’s success. This increased understanding of Toyota’s experience would provide useful guidance to Western companies taking on the challenges of replicating Toyota’s success within their own organizations. The common struggle point shared by the companies who come to us is their inability to establish sustainable TPS-based Lean transformations throughout their organizations. Our work with these companies along with our study of Toyota’s own experience in bringing TPS to its own American operations has …
Scale And Numerical Modeling To Determine Operating Points Of A Non-Clogging Vortecone Filter In Mining Operation, Ashish R. Kumar, Sampurna Arya, Adam Levy, Steven Schafrik, William C. Wedding, Kozo Saito
Scale And Numerical Modeling To Determine Operating Points Of A Non-Clogging Vortecone Filter In Mining Operation, Ashish R. Kumar, Sampurna Arya, Adam Levy, Steven Schafrik, William C. Wedding, Kozo Saito
Progress in Scale Modeling, an International Journal
Numerical and scale modeling studies of Vortecone, a pressure-driven wet-scrubber device for the efficient capture of over-sprayed paint in the automobile industry, are presented. In this manuscript, Vortecone was tested for removing dust particles from underground mining operations. The pressures required to operate Vortecone and the airflow rates through the Vortecone are the two most important factors for mine ventilation systems. This study used dry, no-particle conditions to obtain relationship between these two parameters and then designed a Vortecone filter ventilation system for mining operations. Commercial software, SC/Flow, was used to generate the CFD model with unstructured meshes and a …
Scale Modeling Of Dust Capture Through A Flooded-Bed Dust Scrubber Integrated Within A Longwall Shearer, Sampurna Arya, Ashish Kumar, Kozo Saito, Thomas Novak, Adam Levy
Scale Modeling Of Dust Capture Through A Flooded-Bed Dust Scrubber Integrated Within A Longwall Shearer, Sampurna Arya, Ashish Kumar, Kozo Saito, Thomas Novak, Adam Levy
Progress in Scale Modeling, an International Journal
Meeting federal dust standards at a longwall mine face is among the more difficult challenges for a longwall mine operator. With recent changes in federal dust regulations requiring lower worker exposure, maintaining compliance has become increasingly difficult. The authors recommend the concept of controlling respirable and float dust, which is inherent in longwall mining, through the application of a flooded-bed dust scrubber to a longwall shearer. A full-scale physical model of a longwall shearer, modified with an integrated flooded-bed scrubber, was designed and fabricated at the University of Kentucky to measure the effects of a flooded-bed scrubber on dust capture …
The Behavior Of Micro Explosive Charge Underwater Explosion Near A Rigid Wall, Kazutaka Kitagawa, Atsushi Abe
The Behavior Of Micro Explosive Charge Underwater Explosion Near A Rigid Wall, Kazutaka Kitagawa, Atsushi Abe
Progress in Scale Modeling, an International Journal
The interactions between an underwater explosion and underwater structures is a research topic related to understanding strong impulsive forces for disaster preparation and prevention. This study is a part of series studying the behavior of underwater explosion bubbles near different boundaries and structures because understanding the boundary phases and the pulsation of bubbles could be a useful predictive tool. Micro explosive underwater explosions were conducted by detonating a very small amount of silver azide; the time evolution and attenuation of effects from the explosion were studied. Both numerical and experimental data were acquired and compared for underwater shock waves, gas …
Towards Scaling Laws For Ddt In Obstructed Channels, Elaine S. Oran, Vadim N. Gamezo
Towards Scaling Laws For Ddt In Obstructed Channels, Elaine S. Oran, Vadim N. Gamezo
Progress in Scale Modeling, an International Journal
In a coal mine, natural gas can leak through walls and accumulate in enclosed regions that are no longer being mined or ventilated. If there is an accidental spark in the region containing this gas, it can ignite a flame that may transition to detonation (DDT). An important problem is to assess if, when, and where DDT can occur, and thus provide information needed to design strong enough barriers to protect active mining areas. We describe results of numerical simulations of flame acceleration and DDT in obstacle-laden channels to find a scaling law for 𝐿DDT, the distance the …
Similitude Theory Applied To Plates In Vibroacoustic Field: A Review Up To 2020, Alessandro Casaburo, Giuseppe Petrone, Francesco Franco, Sergio De Rosa
Similitude Theory Applied To Plates In Vibroacoustic Field: A Review Up To 2020, Alessandro Casaburo, Giuseppe Petrone, Francesco Franco, Sergio De Rosa
Progress in Scale Modeling, an International Journal
Similitude methods are a set of tools which allow the design of scaled-up or scaled-down models of a full-scale structure called a prototype. In this way, the financial and temporal costs of experimental tests, and the problems associated with the set-up of too large (or small) test articles, may be overcome. This article provides a brief review of similitude methods applied to plates in a vibroacoustic field. Particularly, it is dedicated to a thorough analysis of similitude conditions and scaling laws for uncovering commonalities and differences, and physical interpretations, obtained from applying different scaling methods.
Ranking Comments: An Entropy-Based Method With Word Embedding Clustering, Yuyang Zhang
Ranking Comments: An Entropy-Based Method With Word Embedding Clustering, Yuyang Zhang
Electronic Thesis and Dissertation Repository
Automatically ranking comments by their relevance plays an important role in text mining and text summarization area. In this thesis, firstly, we introduce a new text digitalization method: the bag of word clusters model. Unlike the traditional bag of words model that treats each word as an independent item, we group semantic-related words as clusters using pre-trained word2vec word embeddings and represent each comment as a distribution of word clusters. This method can extract both semantic and statistical information from texts. Next, we propose an unsupervised ranking algorithm that identifies relevant comments by their distance to the “ideal” comment. The …
Proceedings For Conservation Of Fragile Karst Resources, Crawford Hydrology Laboratory, The George Wright Society, Mammoth Cave National Park
Proceedings For Conservation Of Fragile Karst Resources, Crawford Hydrology Laboratory, The George Wright Society, Mammoth Cave National Park
Conservation of Fragile Karst Resources Proceedings
A Workshop on Sustainability and Community in support of UNESCO science programs August 18-20, 2020
Carbon Pricing Approaches For Climate Decisions In U.S. Higher Education: Proxy Carbon Prices For Deep Decarbonization, Alexander R. Barron, Breanna J. Parker, Susan Stratton Sayre, Shana S. Weber, Dano Weisbord
Carbon Pricing Approaches For Climate Decisions In U.S. Higher Education: Proxy Carbon Prices For Deep Decarbonization, Alexander R. Barron, Breanna J. Parker, Susan Stratton Sayre, Shana S. Weber, Dano Weisbord
Environmental Science and Policy: Faculty Publications
Given the slow policy response by governments, climate leadership by other institutions has become an essential part of maintaining policy momentum, driving innovation, and fostering social dialogue. Despite growth in carbon pricing in government and the private sector, our review suggests low, but growing, adoption of internal carbon prices (ICPs) by higher education institutions (HEIs), who may be uniquely suited to implement and refine these tools. We analyze the range of ICP tools in use by eleven U.S. HEIs and discuss tradeoffs. Our analysis identifies several reasons why proxy carbon prices may be especially well-suited to decisions (especially at the …
Foliar Application Of Low Concentrations Of Titanium Dioxide And Zinc Oxide Nanoparticles To The Common Sunflower Under Field Conditions, Marek Kolenčík, Dávid Ernst, Martin Urík, Ľuba Ďurišová, Marek Bujdoš, Martin Šebesta, Edmund Dobročka, Samuel Kšiňan, Ramakanth Illa, Qian Yu, Huan Feng, Ivan Černý, Veronika Holišová, Gabriela Kratošová
Foliar Application Of Low Concentrations Of Titanium Dioxide And Zinc Oxide Nanoparticles To The Common Sunflower Under Field Conditions, Marek Kolenčík, Dávid Ernst, Martin Urík, Ľuba Ďurišová, Marek Bujdoš, Martin Šebesta, Edmund Dobročka, Samuel Kšiňan, Ramakanth Illa, Qian Yu, Huan Feng, Ivan Černý, Veronika Holišová, Gabriela Kratošová
Department of Earth and Environmental Studies Faculty Scholarship and Creative Works
Nano-fertilisers have only recently been introduced to intensify plant production, and there still remains inadequate scientific knowledge on their plant-related effects. This paper therefore compares the effects of two nano-fertilisers on common sunflower production under field conditions. The benefits arising from the foliar application of micronutrient-based zinc oxide fertiliser were compared with those from the titanium dioxide plant-growth enhancer. Both the zinc oxide (ZnO) and titanium dioxide (TiO2) were delivered by foliar application in nano-size at a concentration of 2.6 mg·L−1. The foliar-applied nanoparticles (NPs) had good crystallinity and a mean size distribution under 30 nm. …
Geochemical Characteristics Of The Eocene Karataş Volcanics (Northeast Sivas, Turkey) In The İzmir-Ankara-Erzincan Suture Zone, Oktay Canbaz, Ahmet Gökce, Taner Eki̇ci̇, Hüseyin Yilmaz
Geochemical Characteristics Of The Eocene Karataş Volcanics (Northeast Sivas, Turkey) In The İzmir-Ankara-Erzincan Suture Zone, Oktay Canbaz, Ahmet Gökce, Taner Eki̇ci̇, Hüseyin Yilmaz
Bulletin of the Mineral Research and Exploration
Karataş volcanics, is the product of Eocene volcanics crop out in the form of two belts along the northern and southern boundaries of the İzmir-Ankara-Erzincan Suture Zone. According to geochemical data, these volcanics have alkaline basic-intermediate character and consist of basaltic trachyandesite, trachyandesite and trachyte. This volcanic activity has been controlled by fractional crystallization and crustal contamination from basaltic trachyandesite to trachyte. Orientation of the samples towards amphibole area on the Rb/Sr - Ba/Rb ratio diagrams, dispersion of the Zr/Ba ratios (0.08 - 0.33) in the lithospheric mantle range, increase in the Ba/Rb ratio, decreases in the MgO, Ni and …