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Synthesis Of High-Strength Ceramics Based On Technogenic Waste Containing Aluminum Oxide, Shermatov Zhavokhir, Aripova Mastura, Paizyllakhanov Mukhammade-Sultankhan

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this work is to synthesize wear-resistant and heat-resistant ceramics based on aluminum oxide. The man-made aluminum-containing waste of the Shurtan gas chemical complex was used as a source of aluminum oxide. In the work, the dependences «composition-structure», «composition-property» and «property-size of particles» were obtained, obtained by the method of heliomaterials science, namely by melting raw materials in a stream of concentrated solar radiation of high density (350 W/cm2) with subsequent quenching of the melt into water (103 deg/s). It is shown that the wear resistance and heat resistance of the material sharply increase when the content in …

High-Efficient And New Technology For Producing 5-Nitro-2-Acetylaminobenzimidazole, Saidov Sarvar, Abdurazakov Askar, Karimov Rikhsibay, Khvan Alla

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this work is to create new veterinary products for agriculture based on local raw materials, to develop a highly efficient technology for their production. Waste from the production of medamine produced in the pilot production of the Institute of Plant Chemistry of the Academy of Sciences of the Republic of Uzbekistan. The process of synthesis of 5-nitro-2-acetylaminobenzimidazole was studied by one-factor experiments. The structure of the obtained product was investigated by IR, Mass, 1H, 13C NMR spectroscopy. The main factors influencing the process of obtaining 5-nitro-2-acetylaminobenzimidazole were revealed. On the basis of the obtained research results, a …

Low-Resistance Bi/Pb Ceramics Containing Ts = 295К-315k Phases Synthesized In A Solar Furnace (Parkent), Gulamova Dilbara, Gulamov Timur

CHEMISTRY AND CHEMICAL ENGINEERING

The aim of this work is to obtain bulk textured superconducting ceramics based on glass-crystalline precursors of the Bi1.7Pb0.3Sr2Ca(n-1)CunOy (n=5-9) series. Technologies for obtaining superconducting materials are presented. The advantages of melt methods and “Super Fast Aloys Quenching–T” technology is shown. Compositions, methods of synthesis and study of properties of precursors and ceramics obtained by solar energy are presented. The interrelation of the morphology of glass-crystalline precursors and superconducting ceramics based on them is revealed. It is shown that nano-sized nuclei are the basis on which superconducting phases with Ts = 295-315K are formed as a result of the peritectic …

Digitization And Fabrication Of Custom Surface Topographies With Submicron Resolution, Mahyar Afsher Mohajer, Josue A. Goss, Dipankar Choudhury, Min Zou, Shelby R. Maddox

Patents Granted

The present invention relates generally to methods of fabricating surface topography based on a scanned surface topography. The method converts 3D scanned surface topography data that have submicron resolution to digital formats that can be stored, manipulated, or tiled, and used as an input for replicating the surface topography with submicron resolution on another substrate. The digitized surface topography data is then converted to input for 1) 3D printing to replicate the scanned surface topography with submicron resolution, with or without a subsequent coating layer or layers to impart additional properties and/or features, 2) 3D printing a master that replicates …

Smokejumper Obituary: Upton, Glenn Harrod (Missoula 1959), National Smokejumper Association

Smokejumper Obituaries

No abstract provided.

A Multidisciplinary Approach To Investigate Deep-Pelagic Ecosystem Dynamics In The Gulf Of Mexico Following Deepwater Horizon, April Cook, Andrea Bernard, Kevin M. Boswell, Heather Bracken-Grissom Dr., Marta D'Elia, Sergio Derada, Cole Easson, David English, Ron Eytan, Tamara Frank, Chuanmin Hu, Matt Johnston, Heather Judkins, Chad Lembke, Jose Lopez, Rosanna Milligan, Jon A. Moore, Brad Penta, Nina Pruzinsky, John A. Quinlan, Travis M. Richards, Isabel C. Romero, Mahmood S. Shivji, Michael Vecchione, Max D. Weber, R.J. David Wells, Tracey Sutton

Marine & Environmental Sciences Faculty Articles

The pelagic Gulf of Mexico (GoM) is a complex system of dynamic physical oceanography (western boundary current, mesoscale eddies), high biological diversity, and community integration via diel vertical migration and lateral advection. Humans also heavily utilize this system, including its deep-sea components, for resource extraction, shipping, tourism, and other commercial activity. This utilization has had impacts, some with disastrous consequences. The Deepwater Horizon oil spill (DWHOS) occurred at a depth of ∼1500 m (Macondo wellhead), creating a persistent and toxic mixture of hydrocarbons and dispersant in the deep-pelagic (water column below 200 m depth) habitat. In order to assess the …

The Role Of Parents In Providing Sexuality Education To Their Children, Nur Azira Fideyah Binti Abdullah, Siti Mariam Muda, Norhasmah Mohd Zain, Siti Hazariah Abdul Hamid

Makara Journal of Health Research

Background: Parents have an important role in delivering sexuality education to their children. However, Asian parents are reluctant to discuss sexual matters with their children owing to the sensitivity of the topic and their lack of sexual health knowledge. This study aimed to examine Malaysian parents’ knowledge, attitudes, and practices in providing sexuality education to their children.

Methods: A self-administered questionnaire was used to conduct this cross-sectional study featuring 200 Malaysian parents. Descriptive and univariate analyses were performed using Statistical Package for Social Study (SPSS) version 23.0.

Results: Among the majority (79.5%) of the parents having good …

Carbon Nanotube–Liposome Complexes In Hydrogels For Controlled Drug Delivery Via Near-Infrared Laser Stimulation, S. Zahra M. Madani, Mohammad Moein Safaee, Mitchell Gravely, Carolynn Silva, Stephen Kennedy, Geoffrey D. Bothun, Daniel E. Roxbury

Chemical, Biomolecular, and Materials Engineering Faculty Publications

Externally controllable drug delivery systems are crucial for a variety of biological applications where the dosage and timing of drug delivery need to be adjusted based on disease diagnosis and progression. Here, we have developed an externally controllable drug delivery system by combining three extensively used platforms: hydrogels, liposomes, and single-walled carbon nanotubes (SWCNTs). We have developed carbon nanotube–liposome complexes (CLCs) and incorporated these structures into a 3D alginate hydrogel for use as an optically controlled drug delivery system. The CLC structures were characterized by using a variety of imaging and spectroscopic techniques, and an optimal SWCNT/lipid ratio was selected. …

Emerging From The Deep: Complexity, Emergent Pedagogy And Deep Learning, Sue L. T. Mcgregor

Northeast Journal of Complex Systems (NEJCS)

As indicated in the title – emerging from the deep – this paper proposes that an ability to face and deal with complexity can emerge from deep learning that is facilitated by pedagogies designed to ensure this outcome, especially an emergent pedagogy that instills deep education. Educators would view the classroom as a complex adaptive system (CAS) capable of self-organizing and operating at the edge of chaos where order emerges, just not predictably. Self-directed students would experience a learning environment that is appreciative of nonequilibrium, unpredictability, shifting and emerging patterns and co-evolution. Teachers would be coaches, activators and facilitators. Students …

Content Masking Attacks Against Information-Based Services And Defenses Thereto, Yao Liu, Zhuo Lu, Ian Davidson Markwood, Dakun Shen

USF Patents

The embodiments present a new class of content masking attacks against the Portable Document Format (PDF) standard. The attacks cause documents to appear different than the underlying content extracted from the documents by information-based services. The first attack allows academic paper writers and reviewers to collude via subverting the automatic reviewer assignment systems in current use by academic conferences. The second attack renders plagiarism detection software ineffective, targeting specific small plagiarism similarity scores to appear natural and evade detection. The final attack places masked content into the indexes for various search engines, which renders as information entirely different from the …

Origins Of Pressure-Induced Enhancement In Thermal Conductivity Of Hybrid Inorganic–Organic Perovskites, Ashutosh Giri

Mechanical, Industrial & Systems Engineering Faculty Publications

Responses of materials to high pressures unveil important insight into their structure–property relationships that are otherwise masked under ambient conditions. Here, using atomistic simulations, it is shown that the thermal conductivity of methylammonium lead iodide can be drastically increased by more than an order of magnitude with applications of ∼60 GPa hydrostatic pressures. The insights gained from the molecular dynamics simulations suggest that although the inorganic constituents contribute significantly to heat flow at ambient pressure, the organic constituents are largely responsible for the drastic increase in thermal conductivity at higher pressures. The application of hydrostatic pressure leads to severe octahedral …

Medical Marijuana And Opioids (Memo) Study: Protocol Of A Longitudinal Cohort Study To Examine If Medical Cannabis Reduces Opioid Use Among Adults With Chronic Pain, Chinazo O. Cunningham, Joanna L. Starrels, Chenshu Zhang, Marcus A. Bachhuber, Nancy L. Sohler, Frances R. Levin, Haruka Minami, Deepika E. Slawek, Julia H. Arnsten

School of Medicine Faculty Publications

Introduction In the USA, opioid analgesic use and overdoses have increased dramatically. One rapidly expanding strategy to manage chronic pain in the context of this epidemic is medical cannabis. Cannabis has analgesic effects, but it also has potential adverse effects. Further, its impact on opioid analgesic use is not well studied. Managing pain in people living with HIV is particularly challenging, given the high prevalence of opioid analgesic and cannabis use. This study's overarching goal is to understand how medical cannabis use affects opioid analgesic use, with attention to Δ9-tetrahydrocannabinol and cannabidiol content, HIV outcomes and adverse events. Methods and …

Experiential Statistics: A Case Study In Favor Of Using Project-Based Learning To Advance Preliminary Statistics Content Knowledge In The Algebra I And Geometry Classroom, Trey Michael Earle

LSU Doctoral Dissertations

Preparing secondary students for college entrance requirements and the expectations of the job market, a market which is actively seeking the employees who are most qualified to take on jobs that require data analysis skills, is becoming increasingly important. Federal, state, and local education administrators and personnel must rewrite many of the general education curricula to incorporate data organization, collection, manipulation, application, and analysis in order to better prepare students for the expectations of college entrance and an ever-changing employment market. From a purely pedagogical standpoint, while traditional educational structure has been commonplace for decades in the United States, projects …

Bibliometric Review Of Mppt Algorithms For Wind Energy Conversion Systems, Jayshree Ashok Pande, Paresh Nasikkar

Library Philosophy and Practice (e-journal)

The existing conventional fuels are going up in prices and going down in availability. This has boosted the demand for renewable resources like wind energy. Wind energy being abundantly available is becoming very popular as it is a freely available pollution-free green energy. Some technical aspects like the tracking of maximum power from the wind energy conversion systems have a very high impact on the efficiency of the wind energy conversion systems. Several algorithms have been implemented for tracking the maximum power point of the wind energy conversion systems. The main objective of this paper is to study the extent …

Bayesian Hierarchical Models For Linear Networks, Zainab Al-Kaabawi, Yinghui Wei, Rana Moyeed

School of Engineering, Computing and Mathematics

The purpose of this study is to highlight dangerous motorways via estimating the intensity of accidents and study its pattern across the UK motorway network. Two methods have been developed to achieve this aim. First, the motorway-specific intensity is estimated by using a homogeneous Poisson process. The heterogeneity across motorways is incorporated using two-level hierarchical models. The data structure is multilevel since each motorway consists of junctions that are joined by grouped segments. In the second method, the segment-specific intensity is estimated. The homogeneous Poisson process is used to model accident data within grouped segments but heterogeneity across grouped segments …

A Time Series Sustainability Assessment Of A Partial Energy Portfolio Transition, Jacob Hale, Suzanna Long

Engineering Management and Systems Engineering Faculty Research & Creative Works

Energy portfolios are overwhelmingly dependent on fossil fuel resources that perpetuate the consequences associated with climate change. Therefore, it is imperative to transition to more renewable alternatives to limit further harm to the environment. This study presents a univariate time series prediction model that evaluates sustainability outcomes of partial energy transitions. Future electricity generation at the state-level is predicted using exponential smoothing and autoregressive integrated moving average (ARIMA). The best prediction results are then used as an input for a sustainability assessment of a proposed transition by calculating carbon, water, land, and cost footprints. Missouri, USA was selected as a …

Mimo Antenna For Fifth Generation Mm-Wave Applications: A Bibliometric Survey, Rajeshwari R. Malekar, Laxmikant K. Shevada, Hema D. Raut, Amruta S. Dixit, Sumit Kumar

Library Philosophy and Practice (e-journal)

Nowadays most discussed technology is mm-wave and 5G communication. The requirement of 5G technology is high bandwidth, high data rate, and low latency. To fulfil these requirements for the current growth in mobile communication multiple input multiple output antenna is used. This bibliometric paper throws light on the various methods used to improve mutual coupling between multiple antennas. Various mutual coupling reduction techniques that are used in MIMO antennas like Dielectric resonator antenna, Electromagnetic Bandgap Structure, Neutralization lines, Defected Ground Structures, Metamaterial, etc. are explained. Scopus database is used for this bibliometric review on mm-wave MIMO 5G technology from the …

Predictive Road Safety Alert System, N/A

Defensive Publications Series

This disclosure describes techniques to automatically provide alerts to users driving a vehicle when unsafe driving conditions may soon occur. An alert is determined based on vehicle speed and road conditions such as tight curves, pavement conditions, and weather, and with user permission, based on an ascertained skill of the user driving the vehicle as indicated by past driving occurrences. Safe speeds to handle upcoming road conditions can also be output. Described features provide information and guidance regarding appropriate driving speeds based on road conditions, vehicle characteristics, and driver ability.

Interacting With Digital Contents: Understanding The On-Screen Reading Behavior Of Young Adults, Saira Hanif Soroya, Kanwal Ameen

Library Philosophy and Practice (e-journal)

In Pakistan, the use of electronic gadgets like Ipad, smartphones, laptops, etc. is on the rise. With the exponential growth and availability of digital reading contents, it is also a matter of concern that how readers interact with digital contents? And whether they are aware of features associated with electronic reading devices? The current study aims to examine the level of students’ digital information literacy skills and to understand the status of their interaction with digital contents. A survey was conducted using a questionnaire as a data collection tool. The data were collected from the students of the Higher Education …

An Analytical Study Of Lis Topics Covered On Wikipedia, Medha Rajesh Mangurkar Mrs., Dinesh B. Khandvi Mr

Library Philosophy and Practice (e-journal)

One of the objectives of UGC is to conduct efficient, transparent standard tests to evaluate the ability of the candidate for the purpose of admission and recruitment. UGC conducts National Eligibility Test (NET) to determine eligibility for lectureship and for award of Junior Research fellowship (JRF) in Social Sciences, Humanities, Forensic Science, Environmental, Computer Science and Electronic Science.

Wikipedia is a website developed collaboratively by a community of users, allowing them to change or add study material on it. The purpose of the study is to examine the extent to which the syllabus of Library and Information Science subject of …

Improving Usage Of Digital Marketing Strategies In The Development Of The B2b Food Market, Maqsuda Saminovna Aminova

Central Asian Problems of Modern Science and Education

Proposed methodological approaches of transforming traditional marketing strategies into digital marketing strategies that allows effective activities in the B2B market by analysing methods of using digital marketing strategies in the development of B2B food production market.

Possibilities Of Using Multimedial Energy Software In The Formation Of Environmental Culture And Education In Students, Yusuf Zhamilov

Central Asian Problems of Modern Science and Education

The article explores the role and didactic possibilities of teaching alternative energy, alternative energy sources and devices, their use in the national economy, the concept of alternative energy in the educational process using multimedia, multimedia products, multimedia technologies and multimedia tools. The analysis of the didactic possibilities of using multimedia software teaching aids, electronic textbooks, virtual laboratory stands, 3D animations and training simulators in the content of the pedagogical basis for the formation of competencies in environmental culture and education of students.

Cosine Similarity And Its Implementation To Uzbek Language Data, Sanatbek Gayratovich Matlatipov

Central Asian Problems of Modern Science and Education

In this article, it has been considered the cosine similarity and its application to search for similarities in the Uzbek language texts. The algorithm of cosine similarity has been used to determine similarity of Uzbek texts. We give the application of the program, proposed by the authors, to the texts of the educational portal ziyonet.uz dataset;

Hydraulic Elevator For Purification Of Water Supply Facilities Of The Reservoir, F.Sh. Shaazizov

Irrigation and Melioration

To clarify the granulometric composition of the deposited sediments at the inlet head of the water intake of the outlet of the Tupolangskiy reservoir, samples of bottom sediments were taken and their granulometric composition was analyzed in laboratory conditions. Near the water area of the water intake of the 1st tier of the Tupolang reservoir, the deposited sediments are represented by smaller particles, the diameter of which ranges from 5 mm to 0.1 mm and their percentage is 95%. The main results on the calculation and substantiation of the parameters of the hydraulic elevator for cleaning the water area of …

Results Of A Numerical Study Of Currents In The Vicinity Of A Damless Water Intake, D.R. Bazarov, O.F. Vokhidov, M. Tashkhanova, F. Uljayev

Irrigation and Melioration

The problem of sustainable water intake in the conditions of significant fluctuations of flow rates and water level is significantly exacerbated by erosion of river beds. A typical example of such conditions is the damless water intake into the Karshi Main Canal (KMC) where the main flow of the Amudarya river continuously moves along a wide floodplain, changing the direction of currents. As a result, it is very difficult to withdraw the required volume of water from the river to the canal especially during dry years due to the high instability of currents at the entrance to the canal. Within …

Prospects For Solving The Problem Of Rational Use Of Water Resources Using The Tiiame-1 Sprinkling Machine, M.Kh. Khamidov, A.R. Muratov

Irrigation and Melioration

The information published by the International Commission on Irrigation and Drainage, and the intermediate results of many years of research carried out by scientists from TIIAME on the development, research and implementation of water-saving technologies in agriculture are presented. The acute shortage of water resources in Central Asia, the problems of increasing the efficiency of the use of water-saving technologies around the world have led to the careful use of available water resources in the region, including the prospects and advantages of using irrigation of crops by sprinkling, as well as the design and technical parameters of the sprinkler developed …

Inadequacy Of Current Water Use Planning At The Level Of Water Users And Wuas, A.A. Alimdjanov, A.Kh. Karimov, B.R. Nasibov

Irrigation and Melioration

This paper studies the main issues of water use planning at the level of water consumers and water user associations (WUA). The study carried out in Bulakbashi district of Andijan province of Uzbekistan, where the main source of irrigation water is the Southern Fergana Main Canal. The study followed two-stage procedure. During the first stage we compiled water use plans for the WUA and water consumers based on the applied methodology of water use planning. Then, at the second stage, we analyzed the results of the actual implementation of the farm water consumption plans and WUA water use plan, and …

Technology And Technical Device Used In The Efficient Use Of Water Resources In Irrigated Agriculture, А.U. Аtajanov

Irrigation and Melioration

The economical use of water resources, the improvement and development of new technology and technical means for its implementation, ensuring the saving of irrigation water is one of the most important issues of today. This article is devoted to the issues of improving the technology of irrigation of furrows and the creation of technical means,also recommended technology and using from created technical device in selected per experiment fields and analyzing their results.

Empirical Assessment Of Climate Change Impacts On Agriculture In Samarkand Region, Sh.B. Babakholov

Irrigation and Melioration

Agricultural production is highly sensitive to climate factors like other endogenous factors, and the expected climate change projections may have a negative impact on the efficiency and income of agricultural producers. Therefore, this study aims to analyze the impact of changes in climatic factors (average air temperature and precipitation) on the technical efficiency of cotton growing farmers as its determinants in Samarkand region. Empirical analyzes were performed on the cases of 1141 cotton-growing farms using panel-based Time-Invariant Inefficiency model. According to the results of the analysis, cotton farms in the region have an average technical efficiency of 76%, which in …

Car Wash Complex – Object Of Harmful Impact On Water Resources, M. Radkevich, K. Shipilova, M. Abdukodirova, O. Pochugevski

Irrigation and Melioration

Deals with the problem of the impact of car wash complexes in the city of Tashkent on water resources. The analysis of the technological process of washing and a sociological survey of car owners and employees of car washes revealed the average amount of water used per car wash per year, as well as the amount of harmful substances entering the sewer network of the city of Tashkent. Calculations have shown that the annual water consumption only for passenger cars in Tashkent is about 4.34 million m³, and the wastewater is not properly treated. From one car wash …