Digital Commons Network^™

Sistem Kendali Dan Akuisisi Data Suhu Serta Kelembaban Ruang Budidaya Jamur Tiram (Pleurotus Ostreatus) Berbasis Internet Of Things (Iot), Amalia Rohmah, Satriyo Agung Dewanto

Elinvo (Electronics, Informatics, and Vocational Education)

This study aims to determine the performance of temperature and humidity control technology of the Internet of Things (IoT) automatic oyster mushroom cultivation space. The stages of device development consist of analysis, design, assembly and testing. The design developed combines hardware control, software, and cloud server. This tool consists of 3 main processes, namely input using DHT11 sensors, process and output, namely 220 V AC actuators. There are two tests namely technical and effectiveness. The test results that have been carried out are: (1) the performance test results obtained an average error of 1.44% and a mean humidity of 3.35%, …

Potential Distribution Of Six North American Higher-Attine Fungus-Farming Ant (Hymenoptera: Formicidae) Species, Sarah F. Senula, Joseph T. Scavetta, Joshua A. Banta, Ulrich G. Mueller, Jon N. Seal, Katrin Kellner

Biology Faculty Publications and Presentations

Ants are among the most successful insects in Earth’s evolutionary history. However, there is a lack of knowledge regarding range-limiting factors that may influence their distribution. The goal of this study was to describe the environmental factors (climate and soil types) that likely impact the ranges of five out of the eight most abundant Trachymyrmex species and the most abundant Mycetomoellerius species in the United States. Important environmental factors may allow us to better understand each species’ evolutionary history. We generated habitat suitability maps using MaxEnt for each species and identified associated most important environmental variables. We quantified niche overlap …

Interaction Between Fusarium Head Blight And Crown Rot Disease Incidence And Environmental Factors And Soil Physiochemical Analysis On Wheat In The South Of Iraq, Basra Province, Mohammed Hussein Minati Dr., Mohanad Khalaf Mohammed-Ameen Dr.

Karbala International Journal of Modern Science

This study was conducted to evaluate the interaction between disease incidence of both Fusarium head blight (FHB) and crown rot (FCR) and physiochemical parameters for soil samples and environmental factors in 14 selected wheat fields in the North of Basra province. The results showed that both diseases were occurred in all surveyed fields. The level of FCR incidence was higher than FHB. The incidence of both diseases was increased with favourable weather conditions (high humidity and temperature ˃15 °C), reaching the highest levels in crucial periods before and during the ripening stage. The percentage of disease incidence ranged between 6 …

The Effects Of Climate On Suicide Rates In 36 Oregon Counties, Elshadai Hailu, Maria Hernandez

Student Scholarship - College of Business

This study looked at average temperature, amount of rainfall and amount of sunshine in all 36 Oregon counties and how they affect suicide rates. Climate information was gathered over the past 30 years and suicide rates were measured between the years 2013 and 2016. It was hypothesized that there would be a negative relationship between low temperature and suicide rates. It was also predicted that there would be a negative relationship between high temperatures and suicide rates. This study found that there was a negative relationship between average high temperature and sucide rates. It also found there is to be …

Impacts Of Eutrophication On Benthic Invertebrates & Fish Prey Of Birds In Farmington And Bear River Bays Of Great Salt Lake, Trip Armstrong, Wayne A. Wurtsbaugh

Watershed Sciences Faculty Publications

Farmington Bay’s watershed is primarily in the heavily populated metropolitan Salt Lake City, and consequently, it receives approximately 50% of its inflow from nutrient‐ rich wastewater releases. The high nutrient loads make it eutrophic and reducing the loading has been suggested to reduce blooms of toxic cyanobacteria. However, the bay also supports thousands of wading birds and waterfowl, and there is concern that reducing nutrient inflows might reduce the production of bottom‐dwelling insects and other invertebrates that the birds rely upon.

Modeling Lake Temperature Response To Climate Change In The Alaskan Arctic, Thomas Balkcom

All Graduate Plan B and other Reports, Spring 1920 to Spring 2023

This thesis study focuses on simulating lake temperature and ice duration for four lakes at the Arctic Long-Term Ecological Research site, near the Toolik Field Station in Alaska. Model projections were driven by the representative global climate model outputs under different carbon emission scenarios. Results show that my simple lake model can reproduce historical lake temperature and ice duration observations, indicating the reliability of the model for future projections. Model projections show that JuneSeptember lake temperatures would increase by 4.3-5.8 °C from the historical period with most progressive carbon emission scenarios, but by 0.7-2.2 °C in the conservative scenarios. Results …

Kindergarteners' Conceptions And Representations Of Temperature: An Exploratory Study On How Young Children Perceive Air Temperature, Ryan Francis Cain

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

As states, districts, and teachers work to make science classes more about doing the work of science and less about remembering science facts, research is needed to show what doing science looks like. This is especially needed for the youngest students, since much of the current research studies examine the upper part of the K-12 grade range.

Having been an early elementary science teacher, my work in this dissertation and beyond is focused on making the doing of science accessible to young children. One way to do science is to collect and interpret data – to measure something and make …

Determining How Temperature Affects The Survival Of Salmonella And E. Coli Species In Sinking Creek: A Meta-Evaluation, Miranda Liner

Undergraduate Honors Theses

In recreational waters, pathogen pollution is a major concern for the USEPA. The USEPA is responsible for initiating the National 303(d) List of Impaired Surface Waters. Pathogen pollution from E. coli is a common reason why recreational waters are placed on the 303(d) list. E. coli O157 H:7 and other enteric pathogens can cause serious illness and even death. Sinking Creek is a part of the Watauga River watershed which runs through Carter and Washington county. Sinking Creek is currently listed on the 303(d) as impaired due to the presence of E. coli. Because of the known presence of …

The Impact Of Temperature On The Early Stages Of The Development Of The Body Axis In The Model Species Astyanax Mexicanus (Teleostei: Characidae), Sara Mohammad Alharbi

College of Science and Health Theses and Dissertations

Environmental fluctuations can change the phenotypic traits of ectotherms. Ectotherms such as fishes are very susceptible to changes in temperature. Recent studies on adults of the Mexican tetra, Astyanax mexicanus, indicate that variation in temperature during development significantly impacts vertebral number and body shape. Since vertebral number and somite number are related, I examined whether temperature significantly impacts somitogenesis and the early development of the body axis in this species. Fertilized eggs of the surface form of lab-reared Astyanax mexicanus were subjected to temperature treatments of 20°C, 24°C, and 28°C, and fixed hourly as they developed until they hatched. Embryos …

Permafrost Changes And Its Effects On Hydrological Processes On Qinghai-Tibet Plateau, Zhao Lin, Hu Guojie, Zou Defu, Wu Xiaodong, Ma Lu, Sun Zhe, Yuan Liming, Zhou Huayun, Liu Shibo

Bulletin of Chinese Academy of Sciences (Chinese Version)

Under the background of global warming, permafrost on the Qinghai-Tibet Plateau has been experienced a significant degradation, which may have effects on regional climate, hydrological and ecological processes. Based on long-term observation data in permafrost region of Qinghai-Tibet Plateau and reanalysis data, the variation characteristics of temperature and precipitation in permafrost region in recent ten years were analyzed, and the variation trends of active layer thickness, ground temperature and soil water content were examined in this study. The spatial and temporal distribution of precipitation and soil water content in permafrost region from 1980 to 2018 were presented. The results showed …

Obtaining Vinyl Acetate By Heterogeneous-Catalytic Method Using A New Catalyst, Vapoev Khusnitdin, Muhiddinov Bakhodir, Nurmonov Suvonqul, Turdieva Odina

CHEMISTRY AND CHEMICAL ENGINEERING

The paper presents the results of a study on the production of vinyl acetate in a heterogeneous-catalytic manner in the presence of catalysts of zinc acetate/γ -Al2O3, zinc acetate/activated carbon, PHA, PHA-6, in the temperature range of 140-260 ° C and the acetylene and acetic acid molar ratio 3: 1 and 1: 5 environment of the studied catalysts turned out to be the most efficient zinc acetate/γ - Al2O3, in the presence of which a high yield of vinyl acetate is observed, at a temperature of 220 ° C and a molar ratio of acetylene and acetic acid is 4.5-5.0:1

Establishment Of A Numerical Model For Sulfate Attacked Concrete Considering Multi-Factors, Shanshan Qin, Dujian Zou, Jun Jiang, Tiejun Liu

International Conference on Durability of Concrete Structures

Sulfate attack is one of the major durability problems of concrete structures, which is manifested by expansive cracks and deterioration of cement paste. In this study, a numerical model is proposed to predict the process of ionic diffusion into concrete under external sulfate attack. The chemical reaction and diffusion processes are considered in this model. Furthermore, the influence of calcium leaching, chemical activity of multi-ions, temperature and changes in porosity are also taken into account. The initial porosity and tortuosity are assumed to be homogeneous in concrete, and the chemical potential gradient is regarded as the driving force for ions …

Environmental Factors Influencing The Durability Of Concrete Structures In Maine Environments, Hairong Wu, Fengjian Zhang, Yi Wang, Xianwei Ma, Libing Jin

International Conference on Durability of Concrete Structures

Concrete structures built in marine environment may suffer serious durability problems. Focusing on the reaction between concrete materials and environmental conditions on structural durability, the coefficients of environmental temperature and chloride content are established. Referring to only experimental data tested following the procedure similar to the regulations in NT Build 443(Concrete, Hardened: Accelerated Chloride Penetration) of North Europe, the relationship between D₂₈ and water/binder ratio, which are converted into equivalent values of a standard reference environmental condition at 20ºC and a concentration of 165 g ± 1 g NaCl per dm³ solution, using the established formula of coefficients …

Effects Of Temperature And Curing Duration On The Stability Of Slag Cements In Combined Chloride-Sulphate Environments, Joseph Onah Ukpata, P. A. M. Basheer, Leon Black

International Conference on Durability of Concrete Structures

This experimental study investigates the effects of temperature and curing duration on the stability of slag blended cement systems exposed at 20 °C and 38 °C to combined sodium chloride (30 g/L) – sodium sulphate (3 g/L) solutions. Two slags, designated as slag 1 and 2, having CaO/SiO₂ ratios of 1.05 and 0.94, were respectively blended with Portland cement CEM I 52.5R at 30 wt.% replacement level. Mortar prisms and cubes with w/b ratio of 0.5 and binder/aggregate ratio of 1:3 were then prepared for length and mass changes. The samples were cured in lime water for either 7 …

Synthesis Of Butyne-2-Diol -1,4 Using Heterogeneous-Catalytical Method, Abdulla Toshtemirovich Umrzoqov, Bakhodir Faxriddinovich Muxiddinov, Husniddin Mirzayevich Vapoyev, Suvonkul Erkhanovich Nurmonov

CHEMISTRY AND CHEMICAL ENGINEERING

Presents studies of the processesof interactionof heterogeneous catalytic acetylene and formaldehyd eto butyn-2-diol-1,4 usinga copper-vismut-nickel-kaolin, copper-vismut-cobolt-kaolin, copper-vismut-nickel-bentonit, copper-vismut-cobolt-bentonit, copper-vismut-nickel-silicagel, copper-vismut-cobolt-silicagel, copper-vismut-nickel-seolit and copper-vismut-cobolt-seolitcatalyst, depending on theircontent, temperature, and the durationof the reactions. Showing thereaction centersof moleculesusingquantum-chemical calculations.

Effects Of Elevated Temperature And Elevated Co2 On Leaf Carbon Fluxes In Boreal Conifers: Lab And Field Studies, Mirindi Eric Dusenge

Electronic Thesis and Dissertation Repository

Rising CO₂ may warm northern latitudes up to 10 °C by the end of the century. However, responses of plant physiological processes (such as photosynthesis and respiration) and growth to climate change remain uncertain. Seedlings and mature trees of tamarack (a deciduous species) and black spruce (an evergreen species), North America dominant conifers, were exposed to combined warming (up to +9 ˚C) and elevated CO₂ (up to +300 ppm). In seedlings, stomatal conductance (g_s) tended to increase with warming in tamarack seedlings, while g_sdeclined with warming in spruce. In both species, CO₂ had …

The Flow Sensors Of A Continuous Medium, Sayfillo Saidovich Nasriddinov, Daryabay Muratbaevich Esbergenov

Euroasian Journal of Semiconductors Science and Engineering

The design features of a thermoanemometric sensor based on silicon with nanoclusters of Nickel atoms, which has high sensitivity and stability of output parameters, are considered. Their electrophysical parameters are studied depending on the type of continuous media.

Nanoscale Evidence For Temperature-Induced Transient Rheology And Postseismic Fault Healing, Alexis K. Ault, Jordan L. Jensen, Robert G. Mcdermott, F.-A. Shen, B. R. Van Devener

Geosciences Faculty Publications

Friction-generated heat and the subsequent thermal evolution control fault material properties and thus strength during the earthquake cycle. We document evidence for transient, nanoscale fault rheology on a high-gloss, light-reflective hematite fault mirror (FM). The FM cuts specularite with minor quartz from the Pleistocene El Laco Fe-ore deposit, northern Chile. Scanning and transmission electron microscopy data reveal that the FM volume comprises a2+ suboxides. Sub–5-nm-thick silica films encase hematite grains and connect to amorphous interstitial silica. Observations imply that coseismic shear heating (temperature >1000 °C) generated transiently amorphous, intermixed but immiscible, and rheologically weak Fe-oxide and silica. Hematite regrowth in …

Temperature, Placental Abruption And Stillbirth, Amal Rammah, Kristina W Whitworth, Inkyu Han, Wenyaw Chan, Judy Wendt Hess, Elaine Symanski

Journal Articles

BACKGROUND: Pregnant women may be vulnerable to changes in ambient temperature and warming climates. Recent evidence suggests that temperature increases are associated with placental abruption, a risk factor for stillbirth.

OBJECTIVES: We investigated the effect of acute exposures to apparent temperature on stillbirths in Harris County, Texas, 2008-2013.

METHODS: We conducted a case-crossover study to investigate the association between temperature and stillbirth among 708 women. We used data from the National Climatic Data Center to estimate maternal exposure to daily average apparent temperature over the days (lag days 1 through 6) preceding the stillbirth event. We employed symmetric bidirectional sampling …

Modeling The Temperature Behavior Of An Rlc Circuit, Kelly S. Ford*, Javier E. Hasbun

Georgia Journal of Science

A problem that occurs in the use of electrical appliances is overheating. Electrical device components require reasonable working temperatures to prevent damage and increase efficiency. To gain an understanding of overheating we worked with an RLC circuit (a circuit consisting of a resistor, an inductor, and a capacitor) to represent a simplified model of an electrical component. The behavior of this circuit is similar to that of many electrical appliance components because as current flows through the resistor there is a rise in temperature due to the resistance to the electric current. Therefore, by using the RLC circuit, we can …

Incubation Under Climatewarming Affects Behavioral Lateralisation In Port Jackson Sharks, Catarina Vila Pouca, Connor Gervais, Joshua Reed, Culum Brown

Culum Brown, PhD

Climate change is warming the world’s oceans at an unprecedented rate. Under predicted end-of-century temperatures, many teleosts show impaired development and altered critical behaviors, including behavioral lateralisation. Since laterality is an expression of brain functional asymmetries, changes in the strength and direction of lateralisation suggest that rapid climate warming might impact brain development and function. However, despite the implications for cognitive functions, the potential effects of elevated temperature in lateralisation of elasmobranch fishes are unknown. We incubated and reared Port Jackson sharks at current and projected end-of-century temperatures and measured preferential detour responses to left or right. Sharks incubated at …

Tense Properties Of Silicon With Nanoclusters, Sabirbay Awesbay Ugli Tursinbaev, Amangeldi Bazarbaevich Kamalov, Halmurat Mijitovich Iliev, Stanislav Anatolevich Tachilin

Euroasian Journal of Semiconductors Science and Engineering

The paper presents studies of the tensoelectric properties of silicon in the volume of which nanoclusters of impurity manganese atoms were formed. To increase the strain, a special geometric shape of the crystal was developed. To study the tensoelectric properties of the samples, a special installation was designed and assembled, which allows measurements to be made both in the dark and under lighting

Analysis Of Characteristics Of Parabolic And Parabolocylindrical Hubs, Comparison Of Data Obtained On Them, J.R. Kodirov, S.Sh. Khakimova, Sh.M. Mirzaev

Journal of Tashkent Institute of Railway Engineers

Solar energy technologies can be quickly deployed and have the potential for a global transfer of technology and innovation. In order to manufacture parabolic and parabolic cylindrical concentrators, an analytical review of these two types of solar devices was carried out and, after their creation, experiments were conducted on them in the season of maximum solar radiation. The article also presents data and their comparison for planning subsequent actions of research activities.

Fucus Distichus: Investigating Humidity And Temperature Between Tides, Jason Thomas, Andrew Chang, Julia Blum, Chela Zabin

STAR Program Research Presentations

Environmental elements such as changing rapidly changing temperature, prolonged periods of low to no water exposure, desiccation, predation and increased wave action can influence the diversity of microhabitats that inhabit the littoral zones. When making observations of various shorelines, specifically the physical conditions of the surrounding marine vegetation (i.e. Fucus distichus), an inquiry is made as to the role of Fucus in the amelioration of stressors on the marine habitat during low tide (MLLW), however, due to time considerations, temperature and humidity are the focus of this study. Using temperature and humidity probes, monitoring data shows that Fucus provides …

Pressurized Combustion Product Temperature Measurement Using Integrated Spectral Band Ratios, Scott Cutler Egbert

Theses and Dissertations

With increasing global power demands, there is a growing need for the clean and efficient use of fossil fuel resources. Gas turbine engines are a commonly used means for generating power; from the propulsion of aircraft to electricity on municipal grids. Measuring the temperature within a turbine combustor or at a turbine inlet could provide numerous advantages related to engine control, durability, efficiency, and emissions and yet this relatively straightforward task has eluded turbine engine manufacturers, primarily because of the high temperatures and pressures, harsh environment, and limited access. Optical emissions measurements are of particular interest for this task as …

Spatio-Temporal Analysis Of Tree Ring Chronology And Precipitation, Ruizhe Yin

Graduate Theses and Dissertations

Tree ring chronology data is known to reflect regional climate due to the strong impact of rainfall and temperature. Therefore, tree ring data can be used to reconstruct historical climate in order to understand how climate changed in the past and make prediction about the future behavior of the climate. For simplicity, this research only considers the influence of precipitation on tree ring growth within the New England area. A total of 94 measurement sites are used to record tree ring width over 881 years and corresponding precipitation data are given at some locations for 121 years. We developed a …

Adsorption Driven Regolith-Atmospheric Water Vapor Transfer On Mars: An Analysis Of Phoenix Tecp Data, Holly Nicole Farris

Graduate Theses and Dissertations

NASA’s Phoenix mission allowed for investigations of Martian diurnal water vapor cycles through the collection of temperature, relative humidity, and electric conductivity data by the Thermal and Electric Conductivity Probe (TECP) instrument. Using this data and previous experimental data, we propose a regolith-driven adsorption-desorption regime at the Phoenix landing site, where parameters intrinsic to the regolith are controlling localized relative humidity at the surface. To constrain these parameters, we model adsorption as a function of temperature and relative humidity across various Mars-relevant materials, defined by two layer-based adsorption theories: Langmuir (monolayer) and Brunauer-Emmett-Teller or BET (multilayer). Langmuir serves as an …

Investigating An Unusually Large 28‐Day Oscillation In Mesospheric Temperature Over Antarctica Using Ground‐Based And Satellite Measurements, Yucheng Zhao, Mike J. Taylor, Pierre-Dominique Pautet, Tracy Moffat-Griffin, Mark E. Hervig, Damian J. Murphy, W. J. R. French, Han-Li Liu, William R. Pendleton Jr, James M. Russel Iii

Conference Presentations

The Utah State University Advanced Mesospheric Temperature Mapper was deployed at the Amundsen‐Scott South Pole Station in 2010 to measure OH temperature at ~87 km as part of an international network to study the mesospheric dynamics over Antarctica. During the austral winter of 2014, an unusually large amplitude ~28‐day oscillation in mesospheric temperature was observed for ~100 days from the South Pole Station. This study investigates the characteristics and global structure of this exceptional planetary‐scale wave event utilizing ground‐based mesospheric OH temperature measurements from two Antarctic stations (South Pole and Rothera) together with satellite temperature measurements from the Microwave Limb …

Effect Of Strain On Charge Density Wave Order In The Holstein Model, Benjami Cohen-Stead, Natanael Costa, Ehsan Khatami, Richard Scalettar

Faculty Publications

We investigate charge ordering in the Holstein model in the presence of anisotropic hopping, tx,ty=1-δ,1+δ, as a model of the effect of strain on charge-density-wave (CDW) materials. Using quantum Monte Carlo simulations, we show that the CDW transition temperature is relatively insensitive to moderate anisotropy δ 0.3, but begins to decrease more rapidly at δ 0.4. However, the density correlations, as well as the kinetic energies parallel and perpendicular to the compressional axis, change significantly for moderate δ. Accompanying mean-field theory calculations show a similar qualitative structure, with the transition temperature relatively constant at small δ, and a more rapid …

Experimental Investigation Of The Thermophysical Characteristics Of The Melatic Meat, Z. Iskandarov Zafar, G. Abdieva Gulmira, N. Saidkhujaeva, M. Karimullaeva

Central Asian Problems of Modern Science and Education

This article presents some results of experimental studies of the thermophysical characteristics of melon pulp. The thermophysical characteristics of the pulp of melons of different varieties in the temperature range from 20 º to 70 ºС are determined. It has been established that thermal conductivity and thermal diffusivity increases with increasing temperature almost linearly. Empirical expressions for the coefficients of thermal conductivity and thermal diffusivity are obtained. These data will be useful in the thermal calculation of drying installations in the production of dried melo