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Wyniki wyszukiwania dla: PN-EN 1991-1-4
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How can the work environment be redesigned to enhance the well-being of individuals with autism?
PublikacjaPurpose – This article examines the opportunities to create optimal conditions for individuals with autism, to work successfully within the contemporary workplace and improve their well-being. These opportunities arise from digital technology (DT) development, enabling the work environment to be remodeled by providing new possibilities and ways of working. The author discusses both technology-based as well as non-technological accommodations...
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Real-time monitoring of volatiles and particles emitted from thermoplastic filaments during 3D printing
PublikacjaThe proliferation of consumer-grade three-dimensional (3D) printers using fused deposition, also known as fused filament fabrication, has given rise to concerns over the exposure of users to potentially harmful substances. Thermoplastic filaments made of different polymers are extruded through a heated printer nozzle and deposited layer by layer on a build platform to form the printed object. This process leads to the emission...
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Bee Pollen and Bee Bread as a Source of Bacteria Producing Antimicrobials
PublikacjaThe principal objective of the study was the isolation and identification of bacteria that are present in mature bee bread (BB) and dried (ready for selling and consumption) bee pollen (BP). Obtained isolates were screened for their potential to inhibit select human pathogenic bacteria and their ability to produce enzymes of particular industrial importance. Four and five samples of BP and BB, respectively, were used for the study....
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DIAGNOSTIC INFORMATION ANALYSIS OF QUICKLY CHANGING TEMPERATURE OF EXHAUST GAS FROM MARINE DIESEL ENGINE PART I SINGLE FACTOR ANALYSIS
PublikacjaIn this paper, attention was paid to the problem of low controllability of marine medium- and high-speed engines during operation, which significantly limits the parametric diagnosis. The measurement of quickly changing temperature of engine exhaust gas was proposed, the courses of which can be a source of diagnostic information. The F statistic of the Fisher-Snedecor distribution was chosen as a statistical tool. Laboratory tests...
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Topological behavior mimicking ethylene–hexene copolymers using branched lactones and macrolactones
PublikacjaPolyolefins are of paramount importance in the world of polymers due to their technological and economic potential.1 However, their nonpolar character significantly restricts the compatibility and adhesion properties, which consequently limits their versatility. Moreover, an intensified demand for materials from renewable resources can also become a problematic venture for the current polyolefin industry.2 Although Braskem and...
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A new open-source software developed for numerical simulations usingdiscrete modeling methods
PublikacjaThe purpose of this work is to present the development of an open-source software based on a discrete description of matter applied to study the behavior of geomaterials. This software uses Object Oriented Programming techniques, and its methodology design uses three different methods, which are the Discrete Element Method (DEM) [F. Donzé, S.A. Magnier, Formulation of a three-dimensional numerical model of brittle behavior, Geophys....
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UZUPEŁNIENIE TEKSTU ZALECEŃ DLA OPRACOWANIA: Ekspertyza techniczna dotycząca przestrojenia konstrukcji stadionu żużlowego w Zielonej Górze z analizą numeryczną w formalizmie metody elementów skończonych
PublikacjaPrzedmiotem orzeczenia jest wskazanie metody (lub metod) przestrojenia konstrukcji stadionu żużlowego w celu poprawy jego dynamiki przy obciążeniu synchronicznym skokiem grupy ludzi. Zakres prac badawczych obejmował:określenie częstości i postaci drgań stadionu ze wzmocnieniem słupkami (stan aktualny stadionu żużlowego) oraz wykonanie symulacji obciążenia synchronicznym skokiem grupy ludzi (wzmocnienie nr 1); określenie częstości...
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Ekspertyza techniczna dotycząca przestrojenia konstrukcji stadionu żużlowego w Zielonej Górze z analizą numeryczną w formalizmie metody elementów skończonych
PublikacjaPrzedmiotem orzeczenia jest wskazanie metody (lub metod) przestrojenia konstrukcji stadionu żużlowego w celu poprawy jego dynamiki przy obciążeniu synchronicznym skokiem grupy ludzi. Zakres prac badawczych obejmował: określenie częstości i postaci drgań stadionu ze wzmocnieniem słupkami (stan aktualny stadionu żużlowego) oraz wykonanie symulacji obciążenia synchronicznym skokiem grupy ludzi (wzmocnienie nr 1); określenie częstości...
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Zrównoważony rozwój lokalny. Podstawy teoretyczne i działania praktyczne
PublikacjaRozwój zrównoważony to jedna z koncepcji rozwoju lokalnego. Celem monografii jest prezentacja podstaw tego rozwoju na poziomie lokalnym oraz ukazanie jego przejawów i działań praktycznych w sferach gospodarczej, społecznej i ekologicznej, ze szczególnym uwzględnieniem dwóch wewnętrznych czynników rozwojowych – turystyki i oświaty. W pierwszym rozdziale przedstawiono teoretyczne podstawy rozwoju lokalnego. Omówiono najpowszechniej...
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Wykorzystanie bezrozpuszczalnikowych technik przygotowania próbek w procedurach oznaczania lotnych związków chlorowcoorganicznych w próbkach płynów biologicznych
PublikacjaDążność do oznaczania możliwie szerokiego spektrum analitów w próbkach charakteryzujących się złożonym, a często i zmiennym składem matrycy, stanowi siłę napędową do działań analityków w zakresie poszukiwania zarówno nowych rozwiązań metodycznych jak i aparaturowych. Szczególnie w przypadku ciekłych próbek środowiskowych i biologicznych konieczne są specjalne operacje i czynności (na etapie ich przygotowania) przed etapem oznaczeń...
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Influence of laser melting on surface layer properties of titanium alloy Ti6Al4V
PublikacjaIn time of rapid technology and medicine progress, implants are becoming more widely used in the human body, ranging from dental implants, stabilizing plates, screws, orthopaedic prostheses. For example, there are many types of hip prostheses used for hip replacement as well as various types of materials used for these orthopaedic prostheses. Properties of titanium alloys used in hip prostheses combined with good strength properties,...
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The productive function of the will in the pfilosophical thought of William James
PublikacjaW artykule przedstawiłem W. Jamesa koncepcję wolnej woli w jej wytwórczej funkcji. Pokazałem, że zrównuje ona ludzkie poznanie i ludzką aktywność. Następnie podkreśliłem, że wola ma wieloaspektowy charakter w formowaniu nowego "wewnętrznego człowieka". W związku z tym, zanalizowałem tzw. empiryczne 'ja' jako "niższe" i "wyższe" 'ja'. Z kolei podkreśliłem walor konsekwencji teleologicznej cechy ludzkiej...
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Assessment of the Relationship between the Shape of the Lateral Meniscus and the Risk of Extrusion Based on MRI Examination of the Knee Joint
PublikacjaBackground Meniscus extrusion is a serious and relatively frequent clinical problem. For this reason the role of different risk factors for this pathology is still the subject of debate. The goal of this study was to verify the results of previous theoretical work, based on the mathematical models, regarding a relationship between the cross-section shape of the meniscus and the risk of its extrusion. Materials and Methods Knee...
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High prevalence of Escherichia coli belonging to the B2+D phylogenetic group in inflammatory bowel disease
PublikacjaBACKGROUND: It is not clear which species of bacteria may be involved in inflammatory bowel disease (IBD). One way of determining which bacteria might be likely candidates is to use culture-independent methods to identify microorganisms that are present in diseased tissues but not in controls. AIMS: (1) To assess the diversity of microbial communities of biopsy tissue using culture-independent methods; (2) to culture the bacteria...
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Piezoelectric Transducer for Mechanical Assessment of Soft Tissues. Concept, Implementation and Analysis
PublikacjaThe main goal of this work was following: preparation of a new concept, implementation and analysis of the piezoelectric resonant sensor/actuator for measuring the aging process of human skin. The research work has been carried out in the framework of cooperation between the INP-ENSEEIHT-LAPLACE, Toulouse, France, and at the Gdansk University of Technology, Faculty of Electrical and Control Engineering, Research Group of...
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Investigation of sweet substances of different molecular structure by potentiometric taste sensor with all solid state electrodes
PublikacjaA five channel potentiometric taste sensor consisting of an array of All Solid State Electrodes (ASSESs) with different lipid-polymer membranes has been developed. The electrodes are constructed of glassy carbon discs with electrochemically deposited poly(3,4-ethylenedioxythiophene) (PEDOT) acting as ion to electron transducer. The outer layer of the electrode is lipid-polymer membrane. Lipid substances immobilized in PVC membranes...
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Fotometryczny czujnik glukozy oparty na enzymatycznych paskach testowych
PublikacjaCukrzyca jest chorobą dotykającą co roku na całym świecie około 3 mln ludzi [1]. Brak możliwości wyleczenia choroby generuje koszty związane z jej monitorowaniem. W USA corocznie wydaje się na ten cel 174 mld dolarów [2]. Stężenie glukozy we krwi zdrowego człowieka na czczo waha się od 80 mg/dl do 110 mg/dl [3]. Stan organizmu z niedoborem glukozy nazywany jest hipoglikemią, a stan podwyższonej zawartości cukru – hiperglikemią...
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The influence of the UV irradiation on degradation of virgin rapeseed oils
PublikacjaThis paper presents research which is a continuation of the investigations described earlier. The aim of these studies was to determine the influence of UV irradiation on flavor and the oxidative stability of different rapeseed oils varieties. For the purpose of this study, oil samples underwent accelerated deterioration for 4.5 h under a UV light test. In the obtained sample, characteristic values (peroxide (PV, 1.23–1.62 meq...
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Możliwości energetycznego wykorzystania osadów ściekowych jako paliwa
PublikacjaObecnie szeroko dyskutowana jest efektywność energetyczna oczyszczalni, stąd istotnym zagadnieniem staje się prawidłowe wykorzystanie potencjału energetycznego osadów ściekowych (CHP i ITPO). Realizacja termicznej przeróbki osadów ściekowych wymaga znajomości właściwości energetycznych (ciepło spalania, wartość opałowa, zawartość wody) oraz składu pierwiastkowego, wskazującego na zawartość substancji lotnych i mineralnych osadów...
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Human UDP-Glucuronosyltransferases: Effects of altered expression in breast and pancreatic cancer cell lines.
PublikacjaIncreased aerobic glycolysis and de novo lipid biosynthesis are common characteristics of invasive cancers. UDP-glucuronosyltransferases (UGTs) are phase II drug metabolizing enzymes that in normal cells possess the ability to glucuronidate these lipids and speed their excretion; however, de-regulation of these enzymes in cancer cells can lead to an accumulation of bioactive lipids, which further fuels cancer progression. We hypothesize...
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Improving in-situ biomethanation of sewage sludge under mesophilic conditions: Performance and microbial community analysis
PublikacjaThis research investigated the application of in-situ biological hydrogen methanation within a continuous stirred tank reactor (CSTR) system under mesophilic conditions, with sewage sludge used as the substrate. Two CSTRs with an effective capacity of 5 L were installed and loaded with inoculum sludge with a volatile solid (VS) concentration of 1.2–1.5 %. They were fed mixed waste sludge with an organic loading rate (OLR) of 1.5...
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Electrochemical detection of bacterial endotoxin lipopolysaccharide (LPS) on gold electrode modified with DAL-PEG-DK5-PEG-OH - Antimicrobial peptide conjugate
PublikacjaThis work describes fabrication of gold electrodes modified with peptide conjugate DAL-PEG-DK5-PEG-OH that enables ultra-sensitive detection of lipopolysaccharide (LPS) isolated from the reference strain of Escherichia coli O26:B6. The initial step of the established procedure implies immobilization of the fully protected DAL-PEG-DK5-PEG-OH peptide on the surface of the gold electrode previously modified by cysteamine. Then side...
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Drug-drug interaction potential of antitumor acridine agent C-1748: The substrate of UDP-glucuronosyltransferases 2B7, 2B17 and the inhibitor of 1A9 and 2B7
PublikacjaBackground The compound 9-(2′-hydroxyethylamino)-4-methyl-1-nitroacridine (C-1748), the promising antitumor agent developed in our laboratory was determined to undergo phase I metabolic pathways. The present studies aimed to know its biotransformation with phase II enzymes – UDP-glucuronosyltransferases (UGTs) and its potential to be engaged in drug-drug interactions arising from the modulation of UGT activity. Methods UGT-mediated...
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Złoża hydrofitowe z pionowym przepływem ścieków charakterystyka procesów i zastosowań
PublikacjaCelem pracy jest przedstawienie obszernego przeglądu istniejącego stanu wiedzy na temat działania, procesów usuwania zanieczyszczań oraz zastosowań złóż hydrofitowych z pionowym przepływem. W monografii zawarto propozycje dotyczące nazewnictwa i klasyfikacji złóż hydrofitowych, propozycję rozwiązania problemu stężenia tła (C*) w równaniu kinetyki reakcji I rzędu stosowanym do wymiarowania tych złóż. Zaproponowano nomogramy pomocne...
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Ukraine’s Energy Security in Strategies
PublikacjaDuring the independence period, the Ukrainian government has published two energy security strategies. The first strategy was adopted in 2006 and the second one in 2016. Both documents provided a similar definition of energy security. The aims of the first strategy, covering the period 2006–2030, were the restructuring of the fuel and energy complex using new technologies, increase of energy efficiency and ensuring market prices...
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Improved degradation of etodolac in the presence of core-shell ZnFe2O4/SiO2/TiO2 magnetic photocatalyst
PublikacjaIn the present study, susceptibility to photocatalytic degradation of etodolac, 1,8-diethyl-1,3,4,9 – tetrahydro pyran - [3,4-b] indole-1-acetic acid, which is a non-steroidal anti-inflammatory drug frequently detected in an aqueous environment, was for the first time investigated. The obtained p-type TiO2-based photocatalyst coupled with zinc ferrite nanoparticles in a core-shell structure improves the separation and recovery...
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Long-Term Stability of Benzodiazepines and Z-Hypnotic Drugs in Blood Samples Stored at Varying Temperatures
PublikacjaBenzodiazepines (BZDs) and Z-drugs are among the most commonly prescribed pharmaceuticals in the world and are considered standard care for various mental illnesses and for treatment of sleeping and anxiety disorders, alcohol withdrawal, muscle spasms and epilepsy. Some BZDs are not allowed as pharmaceuticals in many countries, and they are used as "designer benzodiazepines" (DBZDs). All these compounds are typically screened in...
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Challenges in operating and testing loop heat pipes in 500–700 K temperature ranges
PublikacjaThe potential applications of loop heat pipes (LHPs) are the nuclear power space systems, fuel cell thermal management systems, waste heat recovery systems, medium temperature electronic systems, medium temperature military systems, among others. Such applications usually operate in temperature ranges between 500–700 K, hence it is necessary to develop an LHP system that will meet this requirement. Such a thermal management device...
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Deep learning for ultra-fast and high precision screening of energy materials
PublikacjaSemiconductor materials for energy storage are the core and foundation of modern information society and play important roles in photovoltaic system, integrated circuit, spacecraft technology, lighting applications, and other fields. Unfortunately, due to the long experiment period and high calculation cost, the high-precision band gap (the basic characteristic parameter) of semiconductor is difficult to obtain, which hinders the...
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DNA-reactive anticancer imidazoacridinone C-1311 is a new inhibitor of hypoxia-inducible factor 1 alpha, vascular endothelial growth factor and tumor angiogenesis
PublikacjaHypoxia-inducible factor 1 (HIF-1) plays a critical role for tumor adaptation to hypoxia and promotes angiogenesis. Antitumor imidazoacridinone C-1311 is a DNA reactive topoisomerase II and FLT3 receptor tyrosine kinase inhibitor selected for phase II clinical trials for breast cancer. Here, we demonstrate the new mechanism of C-1311 action involving HIF-1a, vascular endothelial growth factor (VEGF) and angiogenesis as additional...
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Frequency of use, moral incongruence, and religiosity and their relationships with self-perceived addiction to pornography, internet use, social networking and online gaming
PublikacjaBackground and Aims Moral incongruence involves disapproval of a behaviour in which people engage despite their moral beliefs. Although considerable research has been conducted on how moral incongruence relates to pornography use, potential roles for moral incongruence in other putative behavioural addictions have not been investigated. The aim of this study was to investigate the role of moral incongruence in self‐perceived...
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Wieczorowa Szkoła Inżynierska (WSI) w Gdańsku – geneza powstania i działalność
PublikacjaSytuacja po II wojnie światowej, zniszczenia Gdańska i Pomorza, odbudowa przemysłu, przejmowane i uruchamiane zakłady przemysłowe wymagały coraz większej liczby fachowców, kadry inżynierskiej i technicznej. Z inicjatywy pracowników naukowych Politechniki Gdańskiej oraz techników zatrudnionych w przemyśle w październiku 1948 r. powstała samodzielna wyższa uczelnia techniczna: Wieczorowa Szkoła Inżynierska w Gdańsku dla pracujących,...
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Studenci, doktoranci, stażyści z Białorusi na polskich uczelniach
PublikacjaStudenci i doktoranci oraz stażyści z Białorusi należą od początku lat 90. XX wieku do najliczniejszych grup cudzoziemców podejmujących kształce- nie z Polsce. Polityka przyjmowania ich na studia, staże habilitacyjne, arty- styczne, specjalistyczne szkolenia i staże podyplomowe składała się z kilku etapów: od akceptacji przez szkołę, wjazdu na teren państwa, legalizacji pobytu oraz pozostawania po studiach w Polsce. Studenci,...
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Pregnane X receptor dependent up-regulation of CYP2C9 and CYP3A4 in tumor cells by antitumor acridine agents, C-1748 and C-1305, selectively diminished under hypoxia
PublikacjaInduction of proteins involved in drug metabolism and in drug delivery has a significant impact on drug-drug interactions and on the final therapeutic effects. Two antitumor acridine derivatives selected for present studies, C-1748 (9-(2’-hydroxyethylamino)-4-methyl-1-nitroacridine) and C-1305 (5-dimethylaminopropylamino-8-hydroxy-triazoloacridinone), expressed high and low susceptibility to metabolic transformations with liver...
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Genotyping Techniques for Determining the Diversity of Microorganisms
PublikacjaTyping of microbial pathogens, or identifying bacteria at the strain level, is particularly important for diagnosis, treatment, and epidemiological surveillance of bacterial infections. This is especially the case for bacteria exhibiting high levels of antibiotic resistance or virulence, and those involved in nosocomial or pandemic infections. Strain typing also has applications in studying bacterial population dynamics. The part...
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Synthesis and Structure of Novel Hybrid Compounds Containing Phthalazin-1(2H)-imine and 4,5-Dihydro-1H-imidazole Cores and Their Sulfonyl Derivatives with Potential Biological Activities
PublikacjaA novel hybrid compound—2-(4,5-dihydro-1H-imidazol-2-yl)phthalazin-1(2H)-imine (5) was synthesized and converted into di-substituted sulfonamide derivatives 6a–o and phthalazine ring opening products—hydrazonomethylbenzonitriles 7a–m. The newly prepared compounds were characterized using elemental analyses, IR and NMR spectroscopy, as well as mass spectrometry. Single crystal X-ray diffraction data were collected for the representative...
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Thermodynamic, ecological, and economic analysis of negative CO2 emission power plant using gasified sewage sludge
PublikacjaCurrently, sewage sludge is considered as a biomass, according to the Polish act on renewable energy sources from 20th of February 2015 and its novel version from 19th of July 2019. Possibility to utilize sewage sludge in gasification process is an additional advantage of the negative CO2 emissions power plant (nCO2PP). The work presents results of thermodynamic, ecological, and economical analysis using a zero-dimensional mathematical...
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Applications of Tensor Analysis in Continuum Mechanics
PublikacjaA tensor field is a tensor-valued function of position in space. The use of tensor fields allows us to present physical laws in a clear, compact form. A byproduct is a set of simple and clear rules for the representation of vector differential operators such as gradient, divergence, and Laplacian in curvilinear coordinate systems. The tensorial nature of a quantity permits us to formulate transformation rules for its components...
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Sensors for Rapid Detection of Environmental Toxicity in Blood of Poisoned People
PublikacjaRecently, the diagnosis and treatment of poisoned person can be done only in specialized centers. Furthermore, currently used clinical methods of intoxication diagnosis are not sufficient for early detection. Conventional laboratory tests based on urine and blood require professional, high skilled staff, high cost equipment as well as they are arduous and lasting analytical procedures. There is a need to elaborate relatively cheap...
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A Concept of Freight Traffic Flow Regulations in the City of Gdansk
PublikacjaThis paper presents a review of state-of-art efforts in urban freight transport modelling in the context of their requirements and applicability as a basis for evaluation of city's freight transport policy. Freight transport mirrors all aspects of the city's economic activity and for that reason its proper planning is of extreme importance. However, urban freight system may be considered as the most varied and fragmented element...
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G2DC-PL+: a gridded 2 km daily climate dataset for the union of the Polish territory and the Vistula and Odra basins
PublikacjaG2DC-PL+, a gridded 2 km daily climate dataset for the union of the Polish territory and the Vistula and Odra basins, is an update and extension of the CHASE-PL Forcing Data – Gridded Daily Precipitation and Temperature Dataset – 5 km (CPLFD-GDPT5). The latter was the first publicly available, high-resolution climate forcing dataset in Poland, used for a range of purposes including hydrological modelling and bias correction of...
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Investigation of noises in the EPN weekly time series
PublikacjaThe constantly growing needs of permanent stati ons’ velocities users cause their stability level to increase. To this research we included more than 150 stations located across Europe operating within the EUREF Permanent Network (EPN) w ith weekly changes in the ITRF2005 reference frame. The obvious long-range dependencies in the stochastic part of GPS time series were p roven by Ljung-Box...
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Monolithic vs. Microservice Architecture: A Performance and Scalability Evaluation
PublikacjaContext. Since its proclamation in 2012, microservices-based architecture has gained widespread popularity due to its advantages, such as improved availability, fault tolerance, and horizontal scalability, as well as greater software development agility. Motivation. Yet, refactoring a monolith to microservices by smaller businesses and expecting that the migration will bring benefits similar to those reported by top global companies,...
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Kształcenie kadr dla gospodarki wodnej na Wydziale Inżynierii Lądowej i Środowiska Politechniki Gdańskiej
PublikacjaPolitechnika Gdańska jest częścią europejskiej i światowej wspólnoty akademickiej. Wspólnota Uczelni działa na rzecz podnoszenia dobrostanu społecznego oraz zrównoważenia ekosystemu Ziemi – we współpracy z uczelniami z Europy i świata, a także z podmiotami z innych sektorów. Kształcenie i edukacja realizowane są na 8 wydziałach w ramach 37 kierunków I i II stopnia. Blisko 1300 nauczycieli akademickich kształci przeszło 15 tysięcy...
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Environmental stress cracking in e-glass and aramid/glass epoxy composites
PublikacjaKompozyty epoksydowe wzmocnione włóknami szklanymi są dość odporne na wpływy środowiskowe w stanie nieobciążonym, jednak po przyłożeniu obciążeń łatwo pękają w środowisku wody i rozcieńczonych kwasów. Charakterystyki propagacji pęknięć środowiskowych w laminatach szklano/epoksydowych były przedmiotem szeregu prac, jednak brak jest danych na temat zachowania laminatów o wzmocnieniu hybrydowym aramidowo-szklanym stosowanych w budowie...
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Enviroment of Polish democratisation changes
PublikacjaW 1989 r. zapoczątkowany został w krajach Europy Środkowo-Wschodniej proces demokratyzacji. Demokratyzacja oznacza zmianę systemu społecznego w kierunku ideałów i instytucji zakorzenionych w krajach Europy Zachodniej, USA i Kanady opierających się m.in. o zasady: 1. Suwerenności narodu; 2. Republikańskiej formy państwa; 3. Poszanowaniu zasad państwa prawa; 4. Reprezentacji politycznej; 5. Podziału władzy i równoważenia się władz;...
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Theory and application of Near-infrared spectroscopy
PublikacjaIn recent years one can observe a significant increase in the requirements on quality control in all industrial sectors. The growing number of involved analyses makes the traditional, time consuming, requiring use of large quantities of reagents, thus expansive methods inconvenient especially for industrial applications. Fortunately, there is a very fast, cheap and not invasive analytical method that is increasingly used in qualitative...
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METHODS OF TEACHING NOISE PROTECTION AT ENVIRONMENTAL ENGINEERING
PublikacjaNoise strongly influences both our health and behavior in everyday life and as employees or employers. The lost of hearing and other effects of noise on humans result not only in a significant decrease in the quality of life or work efficiency but have also have economic consequences. As noise can be preventable in part by the Environmental Engineers, but it is necessary to introduce them noise issues during their education process....
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Simulation of the response of base-isolated buildings under earthquake excitations considering soil flexibility
PublikacjaThe accurate analysis of the seismic response of isolated structures requires the incorporation of the flexibility of supporting soil. However, it is often customary to idealize the soil as rigid during the analysis of such structures. In the present paper, seismic response time history analyses of base-isolated buildings modelled as single degree-of-freedom (SDOF) and multi degree-of-freedom (MDOF) systems with linear and nonlinear...
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Chitosan-coated coconut shell composite: A solution for treatment of Cr(III)-contaminated tannery wastewater
PublikacjaTannery industry generates a large amount of Cr(III)-contaminated wastewater daily. Unless properly treated, not only this effluent contaminates the water body, but also damages the environment and threatens public health. This batch study investigates the feasibility of chitosan-coated coconut shells as a low-cost material for removing Cr(III) from tannery wastewater. Both chitosan and coconut shell (CS) waste are abundantly available...