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2018

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Articles 1 - 30 of 122

Full-Text Articles in Physical Sciences and Mathematics

Analysis Of Design Peculiarities Of Preventive Shoes For Diabetics, A.J Djuraevich, A.A Khaydarov, M.O Muhammedova Dec 2018

Analysis Of Design Peculiarities Of Preventive Shoes For Diabetics, A.J Djuraevich, A.A Khaydarov, M.O Muhammedova

Central Asian Problems of Modern Science and Education

Quality shoes are fundamental to affecting the health of the feet, in particular, when the foot can be subjected to many serious problems, as is the case with diabetes patients. This article identifies, identifies and analyzes the problems of correct design of shoes for people suffering from diabetes, and design features that distinguish orthopedic shoes from other types of shoes.


Determination Of The Influence Of Spin-Off Roundess On The Value Of Spinning Yarn During Spinning, S.X Babadjanov, F.F Isxakova Dec 2018

Determination Of The Influence Of Spin-Off Roundess On The Value Of Spinning Yarn During Spinning, S.X Babadjanov, F.F Isxakova

Central Asian Problems of Modern Science and Education

The article presents the results of studies of the influence of the unevenness of roundness of the spinning rings on the tension of the yarn produced. It is also noted that if the shape of the ring is distorted, then the slider's trajectory is not a circle, but some closed curve that follows the shape of the ring, while, in general, at each subsequent time, the slider moves along a curve with a different curvature radius. The design scheme and the method for calculating the tension of the yarn from the profile of the ring are given.


Investigation Of The Impact Of The Rotation Frequency Of The Discretizing Drum On The Physical And Mechanical Properties Of, Sh.A Korabayev, S.L Matismailov, J.Z Salohiddinov Dec 2018

Investigation Of The Impact Of The Rotation Frequency Of The Discretizing Drum On The Physical And Mechanical Properties Of, Sh.A Korabayev, S.L Matismailov, J.Z Salohiddinov

Central Asian Problems of Modern Science and Education

This article presents the research results of the rotation frequency influence of a pneumatic spinning machine’s drum on the quality indicators of the yarn produced with a linear density of 29 tex. With the rotation frequency increase of the sampling drums, the specific breaking load of the yarn increases to 11.1 cN / tex, elongation to 6.3%, while reducing the coefficient of variation of the breaking load to 9.2%.


Study Of Cotton Drying Device Technologies, R.X Rasulov, D.V Norbayeva Dec 2018

Study Of Cotton Drying Device Technologies, R.X Rasulov, D.V Norbayeva

Central Asian Problems of Modern Science and Education

In cotton ginning cotton processing technologies, the cleaning of raw cotton is a very important process. In the operated purifiers a low purifying effect, in order to increase the cleaning effect, it is required to modernize the working elements of the cleaner. For this, it is necessary to study the process between the serrated drum and the grate. The obtained results can improve the technology of cleaning machines. Studies have determined the change in the purification process


About Wavefunctions In Low-Dimensional Semiconductors, B Akhmedov, J Rozikov, I Muminov, V Ruziboev Dec 2018

About Wavefunctions In Low-Dimensional Semiconductors, B Akhmedov, J Rozikov, I Muminov, V Ruziboev

Central Asian Problems of Modern Science and Education

The impressive progress in the fabrication of low-dimensional semiconductor structures during the past two decades has made it possible to reduce the effective device dimension from three-dimensional bulk materials, to quasi-two dimensional quantum well systems, to quasi-one dimensional quantum wires, and even to quasi-zero dimensional quantum dots. In this article we discussed about wave function in these structures.


Shock-Absorbing Vibrations Of The Elastic Elastomeric End Of The Rotary Inertia, N.J Khujatov, N.I Abdikarimov Dec 2018

Shock-Absorbing Vibrations Of The Elastic Elastomeric End Of The Rotary Inertia, N.J Khujatov, N.I Abdikarimov

Central Asian Problems of Modern Science and Education

The problem of the longitudinal vibrations of the elastic strerin of the longitudinal impact of the second free end of the end of the tape is settled on the basis of the second order (classic) differential equation. Depending on the nature of stroke endings and the nature and conditions of the impact, the initial and boundary conditions of the problem were found. To solve the problem, a structured block scheme was created, using a duplicate scheme. Created a structured block-scheme based on "Pascal" and the results were obtained.


Intercapacitance Between Two Charges Located In The Different Environments, A.E Abdikarimov, A Yusupov, A.E Atamuratov Dec 2018

Intercapacitance Between Two Charges Located In The Different Environments, A.E Abdikarimov, A Yusupov, A.E Atamuratov

Central Asian Problems of Modern Science and Education

It is investigated the dependence of intercapacitance between two point charges located in different environments on the relative position of border. The image method is used. It is considered two cases: the charges is located at line which is perpendicular to the border and the charges is located at line which is not perpendicular to the border. The result show that in both cases the capacitance is increased with displacement the border.


Investigation Of The Pressed Grunt Cement Blocks, A,A Tulaganov, I.M Hadjiev, E.D Ismailov Dec 2018

Investigation Of The Pressed Grunt Cement Blocks, A,A Tulaganov, I.M Hadjiev, E.D Ismailov

Central Asian Problems of Modern Science and Education

In order to increase the strength and seismicity of the traditional grunt cement blocks, the grunt cement block is proposed to be pressed together with fiber waste and data on the study of grunt cement blocks made from local raw materials are provided.


Cyclic Surfaces In The Pseudoevklit Region, B.M Sultanov, Sh,Sh Ismailov Dec 2018

Cyclic Surfaces In The Pseudoevklit Region, B.M Sultanov, Sh,Sh Ismailov

Central Asian Problems of Modern Science and Education

The article describes the hypothesis of the cyclic surface determined in the Galileo domain, the smallest dimensional pseudo-squid space, which is summarized in the five-dimensional two-indexed pseudo-squidoid space and then on the full cyclic surface. Full-scale surfaces have been proven to be in the four-dimensional pseudo-squidoid phase.


Soliton Mechanism Of Charge Transport In Branched Conducting Polymers And Verification Of Conservation Laws, H. Sh. Matyokubov, D. B. Babajanov Dec 2018

Soliton Mechanism Of Charge Transport In Branched Conducting Polymers And Verification Of Conservation Laws, H. Sh. Matyokubov, D. B. Babajanov

Central Asian Problems of Modern Science and Education

In this work we consider the modeling of charge transport processes in branched conducting polymers and verification of conservation laws, such as energy and charge conservation.


Investigating Smoke Aerosol Emission Coefficients Using Modis Active Fire And Aerosol Products – A Case Study In The Conus And Indonesia, Xiaoman Lu, Xiaoyang Zhang, Fangjun Li, Mark Cochrane Dec 2018

Investigating Smoke Aerosol Emission Coefficients Using Modis Active Fire And Aerosol Products – A Case Study In The Conus And Indonesia, Xiaoman Lu, Xiaoyang Zhang, Fangjun Li, Mark Cochrane

Global Land Surface Season Data Sets

This data set is in relation to the paper of the same title, which has been submitted to the Journal of Geophysical Research: Biogeosciences.

Instructions for viewing the data in “Readme.txt”





Catch The King Tide 2018: All King Tide Data, Jon Derek Loftis Dec 2018

Catch The King Tide 2018: All King Tide Data, Jon Derek Loftis

Data

"Catch the King" is a citizen-science GPS data collection effort centered in Hampton Roads, VA, that seeks to interactively map the King Tide's maximum inundation extents. The goal is to validate and improving predictive model accuracy for future forecasting of increasingly pervasive "nuisance" flooding.


Usu-Csu Na Lidar Data, Tao Yuan Nov 2018

Usu-Csu Na Lidar Data, Tao Yuan

Browse all Datasets

The naturally existing mesospheric Na layer, overlapping the upper mesosphere and lower thermosphere, provides an excellent tracer for lidar remote sensing. The Na Doppler lidar technique is designed to measure neutral temperature and wind profiles in the mesopause region (~ 80-110 km) by observing the thermal broadening and Doppler shift of the atomic Na fluorescence spectrum. Relocated from Colorado State University (CSU), the Na lidar at Utah State University (USU) has been operating since the summer of 2010, for roughly 1000 hours per year. Enabled by a pair of Faraday filters, it has a unique daytime observation capability to study …


A Model Archive For Sediment Transport Model Including Short-Lived Radioisotopes: Model Description And Idealized Test Cases, Justin J. Birchler, Courtney K. Harris, Tara A. Kniskern Oct 2018

A Model Archive For Sediment Transport Model Including Short-Lived Radioisotopes: Model Description And Idealized Test Cases, Justin J. Birchler, Courtney K. Harris, Tara A. Kniskern

Data

This dataset includes model input, code, and output used in the publication Birchler et al. (2018, Journal of Marine Science and Engineering), which used a coupled hydrodynamic-sediment transport-biogeochemical model to investigate the roles of resuspension, deposition, on biodiffusion on the behavior of short-lived radioisotopes in an idealized one-dimensional model setting. Model development for this project focused on incorporating radioisotope tracers into the sediment transport module in the Regional Ocean Modeling System (ROMS). As described in Birchler et al. (2018, Journal of Marine Science and Engineering), the model can account for supply and sorption of radioisotope tracers in the …


Using Pair Approximation Methods To Analyze Behavior Of A Probabilistic Cellular Automaton Model For Intracellular Cardiac Calcium Dynamics, Robert J. Rovetti Oct 2018

Using Pair Approximation Methods To Analyze Behavior Of A Probabilistic Cellular Automaton Model For Intracellular Cardiac Calcium Dynamics, Robert J. Rovetti

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.


Sri Model Of The 2017-2018 Flu Season, Jorge Perez Oct 2018

Sri Model Of The 2017-2018 Flu Season, Jorge Perez

Annual Symposium on Biomathematics and Ecology Education and Research

No abstract provided.


Bifurcation Of Plankton Community And Its Impact On Dms Distribution In The Southern Ocean, Kelin Zhuang Oct 2018

Bifurcation Of Plankton Community And Its Impact On Dms Distribution In The Southern Ocean, Kelin Zhuang

Earth & Environmental Sciences Datasets

Submitted to Journal of Geophysical Research Biogeosciences Title: Bifurcation of plankton community and its impact on DMS distribution in the Southern Ocean - A Simulated Response to Elevated CO2 Radiative Forcing Data and code


Data Supporting The Paper "Turbulence Induced Cloud Voids: Observation And Interpretation", Katarzyna Karpinska, Jonathan F. E. Bodenschatz, Szymon P. Malinowski, Jakub L. Nowak, Steffen Risius, Tina Schmeissner, Raymond Shaw, Holger Siebert, Hengdong Xi, Haitao Xu, Eberhard Bodenschatz Oct 2018

Data Supporting The Paper "Turbulence Induced Cloud Voids: Observation And Interpretation", Katarzyna Karpinska, Jonathan F. E. Bodenschatz, Szymon P. Malinowski, Jakub L. Nowak, Steffen Risius, Tina Schmeissner, Raymond Shaw, Holger Siebert, Hengdong Xi, Haitao Xu, Eberhard Bodenschatz

Department of Physics Publications

No abstract provided.


A Climatological Dataset Of Nutrient, Chlorophyll, And Particulate Matter Distributions On The Ross Sea Continental Shelf Derived From Cruise-Based Measurements Spanning 1967 To 2016, Walker O. Smith Jr., Daniel E. Kaufman Oct 2018

A Climatological Dataset Of Nutrient, Chlorophyll, And Particulate Matter Distributions On The Ross Sea Continental Shelf Derived From Cruise-Based Measurements Spanning 1967 To 2016, Walker O. Smith Jr., Daniel E. Kaufman

Data

This dataset includes data used in the publication Smith and Kaufman (2018), Progress in Oceanography, which examines the temporal and spatial distributions of nutrients and particulate matter in the Ross Sea continental Shelf using cruise-based observations, and compares the resulting annual productivity estimates with previously reported satellite-based estimates. Specifically, these data represent distributions of nutrients, chlorophyll, particulate organic carbon, particulate organic nitrogen, and biogenic silica that were compiled from 42 cruises (from 1967 - 2016) to the Ross Sea continental shelf to generate a comprehensive climatological dataset for November, December, January, and February. This climatology provides a novel look at …


Investigation Of The Accuracy Of The Installation Of Cylindrical Spur Gears When Machining With Rolling Tools In The Conditions Of Nmp Mu Nmmc, B. T. Mardonov Sep 2018

Investigation Of The Accuracy Of The Installation Of Cylindrical Spur Gears When Machining With Rolling Tools In The Conditions Of Nmp Mu Nmmc, B. T. Mardonov

Central Asian Problems of Modern Science and Education

For the production conditions of the NMP MU, it is very important to study the accuracy of the settings of the gear blanks on the tool holders. Therefore, the article considers the issue of studying the accuracy of the installation of gears in the factory and improving the accuracy of the installation through the use of biaxial shaft-hole joints


Study Of Copper-Polymer Complexes And Their Production, A. A. Sarimksakov, S. Sh. Rashidova, M. M. Baltaeva, Kh. O. Eshchanov Sep 2018

Study Of Copper-Polymer Complexes And Their Production, A. A. Sarimksakov, S. Sh. Rashidova, M. M. Baltaeva, Kh. O. Eshchanov

Central Asian Problems of Modern Science and Education

The article presents the process of obtaining the copper-polymer complex by a dry mechanochemical method


Mathematical Modelling Of Blood Flow, O. V. P. Joao, N. J. Khujatov Sep 2018

Mathematical Modelling Of Blood Flow, O. V. P. Joao, N. J. Khujatov

Central Asian Problems of Modern Science and Education

The paper presents the two-phase model to describe blood flow in large and in small blood vessels. Based on this model the study gives an explanation for long known features (effects) of blood flow in the vessels: dependence of the hematocrit (packed cell volume) on the diameter of the vessel, existence of cell-free plasma layer near the vessel wall, obtuse (as compared with the profile of Poiseuille flow) velocity profile of a blood; dependence of the blood viscosity on the diameter of the vessel. The researcher determines dependences of the blood rate and viscosity on the diameter of a blood …


Hygrothermal Performance Of Sealed Attics In Climate Zone 3a, Mikael Salonvaara, Achilles Karagiozis, William Miller Sep 2018

Hygrothermal Performance Of Sealed Attics In Climate Zone 3a, Mikael Salonvaara, Achilles Karagiozis, William Miller

International Building Physics Conference 2018

Sealed attics with fiberglass have been in the US building codes for several codes cycles. Prior to the IRC 2018, air permeable insulation (such as fiberglass) was previously allowed to be deployed without continuous air impermeable insulation only in dry climate zones 2B and 3B in tile roofs systems. New research has revealed that asphalt shingles can also be allowed as implemented in the new IRC 2018 with a new addition to the section for sealed attics using air permeable insulations. The new building code also permits the use of air permeable insulation without air impermeable insulation in climate zones …


Classification Of The Indoor Environment In A High-School Building By Means Of Subjective Responses, Lorenza Pistore, Ilaria Pittana, Francesca Cappelletti, Andrea Gasparella, Piercarlo Romagnoni Sep 2018

Classification Of The Indoor Environment In A High-School Building By Means Of Subjective Responses, Lorenza Pistore, Ilaria Pittana, Francesca Cappelletti, Andrea Gasparella, Piercarlo Romagnoni

International Building Physics Conference 2018

In this paper the subjective evaluation of the indoor environment of a secondary school in Treviso (Italy) is presented. Field campaigns have been carried out during the winter season in order to assess people overall satisfaction about the environment, their behavior towards discomfort and their interactions with the building and the systems. A specific questionnaire has been elaborated, paying particular attention to the occupants target and to the questions needed to grasp not only the comfort feedbacks, but also the dynamics and the individual students’ attitudes that can influence the building energy performance. A first general evaluation has been elaborated …


Krimet Kibernetike, Dua Gjyshinca Sep 2018

Krimet Kibernetike, Dua Gjyshinca

Theses and Dissertations

Në ditët e sotme moderne ku po mbizotëron e ashtëquajtura Epoka e Internet-it shumë nga punët e përditshme si pagesat, komunikimi në mes njerëzve, ndjekja e kurseve mësimore, shkarkimi dhe ngarkimi i dokumenteve të ndryshme, njoftimet rreth ngjarjeve në botë apo edhe përdorimi i aplikacioneve të ndryshme për argëtim ndodhin online me anë të pajisjeve të ndryshme si kompjuterët personal, telefonat e mençur dhe pajisjet tjera.

Njëra ndër gjërat më të rëndësishme që është e mundur falë internetit është mundësia që çdo kush në botë pavarësisht vendndodhjes i jepet mundësia që të lexojë dhe të njoftohet për ngjarjet nga e …


Simulation Data Supporting The Paper "Optical Properties And Radiative Forcing Of Fractal-Like Tar Ball Aggregates From Biomass Burning", Janarjan Bhandari, Swarup China, Giulia Girotto, Barbara Scarnato, Kyle Gorkowski, Allison Aiken, Manvendra Dubey, C. Mazzoleni Aug 2018

Simulation Data Supporting The Paper "Optical Properties And Radiative Forcing Of Fractal-Like Tar Ball Aggregates From Biomass Burning", Janarjan Bhandari, Swarup China, Giulia Girotto, Barbara Scarnato, Kyle Gorkowski, Allison Aiken, Manvendra Dubey, C. Mazzoleni

Department of Physics Publications

Simulations data supporting the paper "Optical properties and radiative forcing of fractal-like tar ball aggregates from biomass burning," to be submitted to the Journal of Quantitative Spectroscopy and Radiative Transfer.


Concentration Of Atmospheric Ammonia From Kenyon College Monitoring Station, Vivian Ezeh, David Heithaus, Simon Garcia, Matthew F. Rouhier Aug 2018

Concentration Of Atmospheric Ammonia From Kenyon College Monitoring Station, Vivian Ezeh, David Heithaus, Simon Garcia, Matthew F. Rouhier

Simon Garcia

Kenyon College is hosting an ammonia (NH3) monitoring station as part of the National Atmospheric Deposition Program (NADP). The Kenyon College (OH32) site is one of six locations around the state of Ohio.


Concentration Of Atmospheric Ammonia From Kenyon College Monitoring Station, Vivian Ezeh, David Heithaus, Simon Garcia, Matthew F. Rouhier Aug 2018

Concentration Of Atmospheric Ammonia From Kenyon College Monitoring Station, Vivian Ezeh, David Heithaus, Simon Garcia, Matthew F. Rouhier

Matthew F Rouhier

Kenyon College is hosting an ammonia (NH3) monitoring station as part of the National Atmospheric Deposition Program (NADP). The Kenyon College (OH32) site is one of six locations around the state of Ohio.


Presence/Absence And Density Data For Epipelagic Tows Collected During R/V Blazing Seven Cruises Lf2016a And Lf2016b, Northern Gulf Of Mexico From 2016-06-09 To 2016-07-28, Jay R. Rooker, David Wells Jul 2018

Presence/Absence And Density Data For Epipelagic Tows Collected During R/V Blazing Seven Cruises Lf2016a And Lf2016b, Northern Gulf Of Mexico From 2016-06-09 To 2016-07-28, Jay R. Rooker, David Wells

DEEPEND Datasets

This dataset reports presence/absence and density data for epipelagic tows collected in the northern Gulf of Mexico during R/V Blazing Seven cruises LF2016A and LF2016B (2016-06-09 to 2016-07-28). Larval fishes were sampled from 48 stations and cruise data were collected at each site including latitude/longitude, date, time, environmental data (temperature, salinity, dissolved oxygen) and Sargassum dry weight. Larval catch data before and after the oil spill will be compared to improve our understanding of the causes of temporal variability as it relates to the Deep-Water Horizon oil spill (DWHOS). Habitat associations of selected taxa (billfishes, tunas, dolphinfishes, flyingfishes) will be …


Webwork Problems For Linear Algebra, Hashim Saber, Beata Hebda Jul 2018

Webwork Problems For Linear Algebra, Hashim Saber, Beata Hebda

Mathematics Ancillary Materials

This set of problems for Linear Algebra in the open-source WeBWorK mathematics platform was created under a Round Eleven Mini-Grant for Ancillary Materials Creation. The problems were created for an implementation of the CC-BY Lyrix open textbook A First Course in Linear Algebra. Also included as an additional file are the selected and modified Lyryx Class Notes for the textbook.

Topics covered include:

  • Linear Independence
  • Linear Transformations
  • Matrix of a Transformation
  • Isomorphisms
  • Eigenvalues and Eigenvectors
  • Diagonalization
  • Orthogonality