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Search results for: SELF-COMPACTING GROUT (SCG)
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Self-compacting grout to produce two-stage concrete
PublicationTraditional concrete (TC) is primarily composed...
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Self-compacting grout to produce two-stage concrete
PublicationTraditional concrete (TC) is primarily composed of a mixture of cement, fine and coarse aggregates, and water. TC is made by mixing together all the components before placing them. Using non-traditional concrete (two-stage concrete) to solve and to eliminate the problem of the aggregate segregation which appears in TC and in the self-compacting concrete. Two-stage concrete (TSC) consists of two main components, namely the grout...
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Production of self-compacting concrete using limestone powder
PublicationAlthough there are visible signs of its gradual acceptance in North Africa through its limited use in construction, Libya has yet to explore the feasibility and applicability of self-compacting concrete (SCC) in new construction. The current study revolves around SCC made of locally available materials and the harsh environmental conditions. This paper deals with the investigation into the effect of the water to powder ratio and...
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Identity Fusion and Status of the Evaluator as Moderators of Self-Enhancement and Self-Verification at the Group Level of Self-Description
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Comparative Evaluation of Compacting Process for Base Materials using Lab Compaction Methods
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Gendered Self-Views Across 62 Countries: A Test of Competing Models
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Independent and Interdependent? Agentic and Communal? Self-construals of People Fused with a Group
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When Membership Gives Strength to Act: Inclusion of the Group Into the Self and Feeling of Personal Agency
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Potential use of granite waste sourced from rock processing for the application as coarse aggregate in high-performance self-compacting concrete
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What makes a group worth dying for? Identity fusion fosters perception of familial ties, promoting self-sacrifice.
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Selection of the Electric Drive for the Wood Waste Compacting Unit
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Improving asphalt pavement intelligent compaction based on differentiated compaction curves
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Unusual behavior of secondary amine group as a leaving group
PublicationIn our recent project we focused on reactivity of2,2-dimethyl-4,6-dioxane-1,3-dione carbamoilo- and thiocarbamoylo- derivatives as a ketenesource. Meldrum`s acid derivatives after thermal decomposition gives substituted keteneswith stoichiometric yield, that can be trapped with various spectrum of nucleophiles likealcohols, thiols, amine, imines etc. In case of5-[3-(dimethylamino)-sulfanyl-propyliden]-2,2-dimethyl-1,3-dioxane-4,6-dione...
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Self-standing Nanoarchitectures
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Self Portrait with a Mask
PublicationPaweł SASIN - Self Portrait with a Mask “Every work of art is the child of its time, and, in many cases, the mother of our emotions. “ Wassily Kandynsky, Concerning the Spiritual in Art The two years 2020 and 2021 were marked by the COVID-19 pandemic – a lengthy period of time in which everyone felt in danger of losing one’s health or life. As a result, many people were experiencing negative emotion, becoming subject to psychological...
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Self-standing Nanoarchitectures
PublicationDespite there are structures invisible for the human eye, they mastered the world of advanced electronic devices, sensors, novel cosmetics or drugs. When the dimensions of the materials go down to the nanometres scale, their properties change dramatically comparing to the observable objects. Because of their tiny size, they gained the name of nanomaterials but simultaneously their importance has significantly grown up. Nanomaterials...
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What do I gain from joining crowds? Does self-expansion help to explain the relationship between identity fusion, group efficacy and collective action?
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Self-Concept Clarity and Religious Orientations: Prediction of Purpose in Life and Self-Esteem
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Self-organization in artificial environment.
PublicationPrzedstawiono rezultaty eksperymentów symulacyjnych procesów samoorganizacji zachodzących w środowisku programowym modelowania indywiduowego systemów fizycznych. Środowisko to ukierunkowane jest na modelowanie systemów składających się z wielkiej liczby poruszajacych się i oddziałujących na siebie jednostek.
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The Self-employment of Women in Azerbaijan
PublicationAzerbaijan has a population of more than 10 million, of which women accounted for 50% in 2020. At the same time, 93% of Azerbaijan’s citizens describe themselves as Muslims. Since the beginning of independence, Azerbaijan has been a secular state by virtue of Article 48 of the Constitution, which guarantees the freedom of worship, choice, or non-practice of religion and the freedom of...
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Laboratory investigation of gyratory-vibratory compaction method for better simulating asphalt mixture field compaction
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Is participation in music festivals a self-expansion opportunity? Identity, self-perception, and the importance of music’s functions
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Towards Healthcare Cloud Computing
PublicationIn this paper we present construction of a software platform for supporting medical research teams, in the area of impedance cardiography, called IPMed. Using the platform, research tasks will be performed by the teams through computer-supported cooperative work. The platform enables secure medical data storing, access to the data for research group members, cooperative analysis of medical data and provide analysis supporting tools...
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An Analysis of Airline GRI and SDG Reporting
PublicationThis study aims to increase our understanding of the Global Reporting Initiative’s (GRI) topic-specific disclosures and the sustainable development goals (SDGs) addressed in the global passenger airline industry’s sustainability reporting (SR). Based on a quantitative content analysis of the industry’s sustainability reports from the financial year 2019 (FY19), this study reveals that airlines focused more on reporting environmental...
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Influence of grout proportions on modulus of elascity of two-stage concrete
PublicationOmówiono badania doświadczalne przeprowadzone dla betonu dwuetapowego. Beton wykonano z kruszywa otoczakowego przy zastosowaniu trzech różnych proporcji w/c i c/p. Na drodze statystycznej opracowano prosty wzór umożliwiający wstępne szacowanie wartości siecznego modułu Younga. Ponieważ metoda dwuetapowa pozwala na zachowanie kontaktu pomiędzy poszczególnymi elementami kamiennego szkieletu wypełniającego formę, wytrzymałość uzyskanego...
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Deep compaction control of sandy soils
PublicationVibroflotation, vibratory compaction, micro-blasting or heavy tamping are typical improvement methods for the cohesionless deposits of high thickness. The complex mechanism of deep soil compaction is related to void ratio decrease with grain rearrangements, lateral stress increase, prestressing effect of certain number of load cycles, water pressure dissipation, aging and other effects. Calibration chamber based interpretation...
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Self-tuning adaptive frequency tracker
PublicationAn automatic gain tuning algorithm is proposed for a recently introduced adaptive notch filter. Theoretical analysis and simulations show that, under Gaussian random-walk type assumptions, the proposed extension is capable of adjusting adaptation gains of the filter so as to minimize the mean-squared frequency tracking error without prior knowledge of the true frequency trajectory. A simplified one degree of freedom version of...
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Nascent entrepreneurship and the role of self-efficacy
PublicationCelem artykułu jest opisanie roli, jaką w tworzeniu nowej firmy pełni poczucie własnej skuteczności. W pierwszej części artykułu opisane są źródła poczucia samoskuteczności oraz jego następstwa w oparciu o teorię Bandury. W drugiej części artykułu opisane jest rozróżnienie pomiędzy ogólnym poczuciem samoskuteczności a poczuciem samoskuteczności w kontekście przedsiębiorczości (ESE). Autorzy przedstawiają teoretyczne i metodologiczne...
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Self Organizing Maps for Visualization of Categories
PublicationVisualization of Wikipedia categories using Self Organizing Mapsshows an overview of categories and their relations, helping to narrow down search domains. Selecting particular neurons this approach enables retrieval of conceptually similar categories. Evaluation of neural activations indicates that they form coherent patterns that may be useful for building user interfaces for navigation over category structures.
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Self-Optimizing Adaptive Vibration Controller
PublicationThis paper presents a new approach to rejection of sinusoidal disturbances acting at the output of a discrete-time linear stable plant with unknown dynamics. It is assumed that the frequency of the sinusoidal disturbance is known, and that the output signal is contaminated with wideband measurement noise. The proposed controller, called SONIC (self-optimizing narrowband interference canceller), combines the coefficient fixing technique,...
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Viruses, cancer and non-self recognition
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Self-defence work of wooden construction
PublicationTrwałość konstrukcji drewnianych, prawidłowo zaprojektowanych i wykonanych zależy przede wszystkim od sposobu ich użytkowania. Brak okresowych remontów może doprowadzić do zniszczenia struktury drewna na skutek korozji biologicznej. Konsekwencją tego są nadmierne przemieszczenia konstrukcji lub utrata jej stateczności a więc zagrożenia awaryjne.
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Distortion in the group of circle homeomorphisms
PublicationLet G be the group PAff+(R/Z) of piecewise affine circle homeomorphisms or the group Diff∞(R/Z) of smooth circle diffeomorphisms. A constructive proof that all irrational rotations are distorted in G is given.
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Guided ultrasonic waves for detection of debonding in bars partially embedded in grout
PublicationThis paper deals with theoretical, numerical and experimental investigations of guided wave propagation in multilayered cylindrical bars with pre-existing debonding. The research focuses on a complex description of the nature of the wave phenomena occurring in a debonded specimen with a special emphasis on the influence of the location of damage on the wave conversion and diffraction. Experimental non-destructive and destructive...
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Quantum structure in competing lizard communities
PublicationAlmost two decades of research on applications of the mathematical formalism of quantum theory as a modeling tool in domains different from the micro-world has given rise to many successful applications in situations related to human behavior and thought, more specifically in cognitive processes of decision-making and the ways concepts are combined into sentences. In this article, we extend this approach to animal behavior, showing...
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On the hardness of computing span of subcubic graphs
PublicationIn the paper we study the problem of finding ξ-colorings with minimal span, i.e. the difference between the largest and the smallest color used.
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Berkeley Open Infrastructure for Network Computing
PublicationZaprezentowano system BOINC (ang. Berkeley Open Infrastructure for Network Computing) jako interesujące rozwiązanie integrujące rozproszone moce obliczeniowe osobistych komputerów typu PC w Internecie. Przedstawiono zasadę działania opisywanej platformy. W dalszej części zaprezentowano kilka wybranych projektów naukowych wykorzystujących BOINC, które są reprezentatywne w zakresie zastosowania systemu w ujęciu założonego paradygmatu...
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A Special Issue on Ubiquitous Computing in Healthcare
PublicationPrzetwarzanie bez granic w opiece zdrowotnej jest szczególnie istotne w konteście starzejącego się społeczeństwa. W pracy przedstawiono omówienie roli przetwarzania bez granic oraz opisano powiązane dziedziny tematyczne i prezentowane w numerze specjalnym zagadnienia.
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On Computing Curlicues Generated by Circle Homeomorphisms
PublicationThe dataset entitled Computing dynamical curlicues contains values of consecutive points on a curlicue generated, respectively, by rotation on the circle by different angles, the Arnold circle map (with various parameter values) and an exemplary sequence as well as corresponding diameters and Birkhoff averages of these curves. We additionally provide source codes of the Matlab programs which can be used to generate and plot the...
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An Experimental Facility for Rapid Testing of SCR Systems
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Beton nowej generacji - beton samozagęszczalny (SCC).
PublicationW referacie przedstawiono charakterystyka betonu samozagęszczalnego (SCC) i jego właściwości. Wykazano że, skład i zasady projektowania betonu samozagęszczalnego różnią się od betonu zwykłego.Przedstawiono metody projektowania SCC, podstawowe właściwości oraz dotychczasowe zastosowania w praktyce.
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"SDG # pawilon tematyczny"-wystawa projektów studenckich
PublicationZgromadzenie Ogólne Organizacji Narodów Zjednoczonych w 2015 roku przyjęło Rezolucję 70/1 “Przekształcamy nasz świat: Agenda na rzecz zrównoważonego rozwoju 2030”. Jest to plan działań na rzecz ludzi, planety i dobrobytu oraz wzmocnienia powszechnego pokoju w warunkach większej wolności. Jest wdrażany przez wszystkie kraje w ramach współpracy partnerskiej. Agenda 2030 wyrażona jest poprzez 17 Celów Zrównoważonego Rozwoju (SDG...
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"SDG # pawilon tematyczny"-plakat do wystawy
Publicationplakat prezentujący założenia wystawianych projektów
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A body position influence on ECG derived respiration
PublicationAn influence of a human body position on ECG derived respiration (EDR) signal is presented in the paper. Examinations were performed during deep, suspended and normal breathing for eight people in four different body positions. EDR and thoracic impedance signals were compared using correlation and standard deviation coefficients. Obtained results have shown that it is possible to monitor breath activity of people being in different...
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Smart Weighing Scale with Feet-Sampled ECG
PublicationIn a smart home, health and well-being monitoring systems could be embedded in everyday devices providing a pervasive care. A home bathroom scale is an example of such a device, typically used to measure body weight and very often its composition (e.g. body water/fat percentage). In this paper, we analyzed a potential use of the bathroom scale to measure electrocardiogram (ECG) from electrodes located on the scale's tile. In particular...
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Estimation of electrode contact in capacitive ECG measurement
PublicationIn the paper a method of electrode’s contact estimation in capacitive electrocardiogram (CECG) is presented. Proposed solution allows estimation of contact quality for each individual electrode. This enables construction of multi-electrode CECG systems, where electrode pairs can be selected on the basis of the individual electrode contact quality.
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Optimal ECG lead for deriving respiratory signal
PublicationEDR is an interesting measuring technique that allows an indirect assessment of respiratory activity. This is an alternative solution to direct methods that are based on the measurement of air flow, which require a specialized sensor or even a system. However, due to inter-personal anatomical differences, the optimal ECG lead (placement of the electrodes) ensuring the best EDR signal quality is not fixed. An influence of ECG lead...
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SG
PublicationObraz odnosi się do Stoczni Gdańskiej
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A Review of Recent Advances in Human-Motion Energy Harvesting Nanogenerators, Self-Powering Smart Sensors and Self-Charging Electronics
PublicationIn recent years, portable and wearable personal electronic devices have rapidly developed with increasing mass production and rising energy consumption, creating an energy crisis. Using batteries and supercapacitors with limited lifespans and environmental hazards drives the need to find new, environmentally friendly, and renewable sources. One idea is to harness the energy of human motion and convert it into electrical energy...
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Visualization and quantification of lab vibratory compacting process for aggregate base materials using accelerometer
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