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Analiza kosztów i czasu budowy domu jednorodzinnego w technologii drewna krzyżowo klejonego CLT
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Bacterial nanocellulose as a microbiological derived nanomaterial
PublikacjaBacterial nanocellulose (BNC) is a nanofibrilar polymer produced by strains such as Gluconacetobacter xylinus, one of the best bacterial species which given the highest efficiency in cellulose production. Bacterial cellulose is a biomaterial having unique properties such as: chemical purity, good mechanical strength, high flexibility, high absorbency, possibility of forming any shape and size and many others. Such a large number...
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Multi-response optimization on the effect of wet and eco-friendly cryogenic turning of D2 steel using Taguchi-based grey relational analysis
PublikacjaMaterial removal processes, including turning and milling, are still commonly used operations for manufacturing most of mechanical components in modern industry. Apart from the cutting parameters, the cooling method has the great impact on the technological efects and, above all, on the environmental friendliness of production. In this study, multi-response optimization on the efect of wet and cryogenic machining is performed during...
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Rapid method for the determination of organochlorine pesticides and PCBs in fish muscle samples by microwave-assisted extraction and analysis of extracts by GC-ECD
PublikacjaA procedure for the multiresidue determination of organochlorine pesticides and polychlorinated biphenyls in fish muscle samples has been developed. The method is based on the microwave-assisted extraction (MAE) of food samples from an acetonitrile-water (95 + 5, v/v) mixture followed by SPE cleanup of the extracts and analysis by GC with an electron capture detector. MAE operational parameters, such as the extraction solvent,...
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The topography of various sialoliths by scanning electron microscopy
Dane BadawczeThis dataset contains SEM micrographs taken for salivary gland stones (sialolith) extracted during joint studies between the Medical University of Gdansk and Gdansk University of Technology. Three different types of stones were examined, as discussed in the article: 10.1111/odi.13708
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Application of response surface methodology to optimize solid-phase microextraction procedure for chromatographic determination of aroma-active monoterpenes in berries
PublikacjaMost of scientific papers concern the qualitative or semi-quantitative analysis of aroma-active terpenes in liquid food matrices. Therefore, the procedure based on solid-phase microextraction and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry for determination of monoterpenes in fresh berries was developed. The optimal extraction conditions using divinylbenzene-carboxen-polydimethylsiloxane fiber...
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Parki tematyczne w rozwoju lokalnym miasteczek i wsi
PublikacjaObecnie niemal każde polskie miasto i wieś ma na celu znalezienie dobrego pomysłu na swój rozwój społeczno-gospodarczy. Najczęściej jest nim założenie parku tematycznego. Dobrze się dzieje, gdy takie przedsięwzięcie wspiera lokalne tradycje, zwyczaje i walory kulturowe miasta czy wsi; gdy promowane są miejscowe produkty i żywność. Niestety, nie zawsze tak jest. Niektóre miasta i gminy chętniej przyjmują zupełnie inną politykę...
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Why are trees still such a major hazard to drivers in Poland?
PublikacjaRoadside trees are one of Poland's most serious road safety issues. Since 2009 more than 2800 people have been killed as a result of tree collisions; this represents about 15% of all of Poland's accident fatalities between 2009 and 2013. In some of the country's regions striking a tree caused more than 30% of all road accident fatalities. With no proper regulations, guidelines or examples of good practice, roadside environments...
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Tool Wear Monitoring Using Improved Dragonfly Optimization Algorithm and Deep Belief Network
PublikacjaIn recent decades, tool wear monitoring has played a crucial role in the improvement of industrial production quality and efficiency. In the machining process, it is important to predict both tool cost and life, and to reduce the equipment downtime. The conventional methods need enormous quantities of human resources and expert skills to achieve precise tool wear information. To automatically identify the tool wear types, deep...
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A Closed Bipolar Electrochemical Cell for the Interrogation of BDD Single Particles: Electrochemical Advanced Oxidation
PublikacjaA closed bipolar electrochemical cell containing two conductive boron-doped diamond (BDD) particles of size 250 – 350 m, produced by high-pressure high-temperature (HPHT) synthesis, has been used to demonstrate the applicability of single BDD particles for electrochemical oxidative degradation of the dye, methylene blue (MB). The cell is fabricated using stereolithography 3D printing and the BDD particles are located at either...
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Marek Biziuk prof. dr hab. inż.
OsobyUr. 25.06.1947 w Sokółce, Województwo Podlaskie. W latach 1964-1969 studiował na Wydziale Chemicznym PG. Stopień doktora nauk technicznych uzyskał w 1977 r., a stopień doktora habilitowanego nauk chemicznych w zakresie chemia uzyskał na Wydziale Chemicznym PG 24.05.1995 r. Tytuł naukowy profesora nauk chemicznych uzyskał na Wydz. Chemicznym PG 6.04.2001 r. Członek Komitetu Chemii Analitycznej PAN od 2008, członek Zespołu ds....
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New and Fast Analytical Techniques in Food Quality Analysis
Kursy Online -
On the current state of dovetail wall-corner joints in wooden Greek Catholic churches in Polish Subcarpathia with structural and sensitivity analyses
PublikacjaThis paper describes the current condition of some dovetail joints which form the wall corners of two Greek Catholic churches of wooden construction in Polish Subcarpathia. It also gives the historical background of the sacral architecture of that region. The two structures, which represent the same type of log corner joints are situated in Chotylub and Cewków. The buildings were examined e.g. for damage, wood moisture content,...
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Numerical analysis of the carpentry joints applied in the traditional wooden structures
PublikacjaThe paper concerns the numerical analysis of the carpentry joints made from spruce wood. The material parameters of the wood have been calculated on the basis of nine independent material constants (an orthotropic material). The contact zone between the individual elements of the connection has been determined using Contact Tables in the MSC.Marc software. Five types of carpentry joints have been analyzed. The main aim of the research...
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Rafał Leszczyna dr hab. inż.
OsobyDr hab. inż. Rafał Leszczyna jest profesorem uczelni na Wydziale Zarządzania i Ekonomii Politechniki Gdańskiej. W lipcu 2020 r., na podstawie osiągnięcia naukowego w obszarze zarządzania cyberbezpieczeństwem infrastruktur krytycznych w sektorze elektroenergetycznym, uzyskał stopień doktora habilitowanego w dziedzinie nauk inżynieryjno-technicznych, dyscyplina informatyka techniczna i telekomunikacja. W latach 2004–2008 pracował...
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Intrinsic effects of AM4113, a putative neutral CB1 receptor selective antagonist, on open-field behaviors in rats
PublikacjaW pracy przedstawiono wyniki testów otartego pola na zachowanie szczurów po iniekcji zwierzętom WIN55,21-2 (WIN; 3 mg/kg) agonisty receptora kanabinoidowego CB1R, bądź AM4113 (0.3−5.6 mg/kg) przypuszczalnie neutralnego antagonisty receptora kanabinoidowego CB1R oraz mieszaniny obu związków. W badaniach pod uwagę brano następujące zachowania zwierząt; ilość kwadratów, którą szczury przechodziły na czterech nogach, częstotliwość...
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A nontargeted approach to determine the authenticity of Ginkgo biloba L. plant materials and dried leaf extracts by liquid chromatography-high-resolution mass spectrometry (LC-HRMS) and chemometrics
PublikacjaThe lack of stringent regulations regarding raw materials for herbal supplements used for medicinal purposes has been a constant challenge in the industry. Ginkgo biloba L. leaf extracts attract consumers because of the supposed positive effect on mental performance and memory. Supplements are produced using dried leaf materials and standardized leaf extracts such as EGb 761. Adulteration of Ginkgo biloba L. plants and extracts...
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Developments in manufacturing engineering and machining process planning
PublikacjaCurrent research conducted in the Department of Manufacturing Engineering and Automation is presented in the paper. This includes: abrasive cutting off, grinding with lapping kinematics, rapid prototyping and machining procrss planning. Experimental results and computer simulation are presented and analysed.
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Na efektywność wpływa sposób przetarcia. Seminarium Obróbki Drewna w Szwecji
PublikacjaW artykule przedstawiono relację z 20th International Wood Machining Seminar, które odbyło się w Skelleftea w Szwecji.
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Diagnosis of Damage in a Steel Tank Model by Shaking Table Harmonic Tests
PublikacjaThe aim of the present paper is to show the results of the shaking table experimental study concerning the diagnosis of damage in a model of cylindrical steel tank with self-supported roof which is filled with liquid. During the tests, the base of the structure was excited under the harmonic loading with variable frequency. The tests were repeated for different stages of damage, which was introduced in the model by easing the bolts...
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A method of predicting the best conditions for large-size workpiece clamping to reduce vibration in the face milling process
PublikacjaThe paper presents an innovative method of solving the problem of vibration suppression during milling of large-size details. It consists in searching for the best conditions for clamping the workpiece based on a rapid modal identification of the dominant natural frequencies only and requires repetitive changes in the tightening torque of the clamping screws. Then, by estimating the minimum work of the cutting forces acting in...
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Współdziałanie płyty fundamentowej na palach z podłożem gruntowym.**2003,157 s. 121 rys. 22 tab. bibliogr. 83 poz. Rozprawa doktorska /2003.11.14./ PG, Wydz. Bud. Wod. Inż. Środ. Promotor: prof. zw. dr hab. inż. A. Tejchman
PublikacjaPrzedmiotem pracy jest analiza współdziałania płyty fundamentowej na palachz podłożem gruntowym w tym określenie udziału płyty i pali w przekazywaniuobciążeń zewnętrznych na podłoże gruntowe oraz przedstawienie efektów wzaje-mnego oddziaływania płyty, pali i gruntu. Ponadto zaproponowano procedurę obliczeń fundamentów płytowo - palowych pozwalającą ekonomicznie i bezpie-cznie projektować posadowienie tego rodzaju fundamentów.
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Analiza pracy podłoża uwarstwionego z warstwami słabonośnymi.**2003, 202 s. 157 rys. 36 tab. bibliogr. 30 poz. Rozprawa doktorska /2003.12.19./ PG, Wydz. Bud. Wod. Inż. Środ. Promotor: prof. dr hab. inż. W. Odrobiński
Publikacja...
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Modelling of heat and mass transfer through wooden buildings
PublikacjaThe aim of this review paper is to examine the most recent available studies dealing with theoretical, numerical and experimental aspects related to modelling of heat and mass transfer through wooden buildings. The main thermophysical, mechanical and hygrometric properties of wood are firstly discussed. Then, the basic governing equations of heat and mass transfer phenomena are presented. A detailed description of the physical...
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Modelling and Simulation of a New Variable Stiffness Holder for Milling of Flexible Details
PublikacjaModern industry expectations in terms of milling operations often demand the milling of the flexible details by using slender ball-end tools. This is a difficult task because of possible vibration occurrence. Due to existence of certain conditions (small depths of cutting, regeneration phenomena), cutting process may become unstable and self-excited chatter vibration may appear. Frequency of the chatter vibration is close to dominant...
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NEW AND FAST ANALYTICAL TECHNIQUES IN FOOD QUALITY ANALYSIS 2024
Kursy Online -
Abnormal histological findings - Female, 52 - Tissue image [6100730023442251]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Abnormal histological findings - Female, 52 - Tissue image [6100730023441181]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Abnormal histological findings - Female, 52 - Tissue image [6100730023449881]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Abnormal histological findings - Female, 52 - Tissue image [6100730023447781]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Abnormal histological findings - Female, 52 - Tissue image [610073002344671]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Abnormal histological findings - Female, 52 - Tissue image [610073002344391]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Abnormal histological findings - Female, 52 - Tissue image [61007300234431]
Dane BadawczeThis is the histopathological image of CERVIX UTERI tissue sample obtained in Medical University Gdańsk and deposited in ZMDL-GUMED. The sample image was taken using: Pannoramic 250 3DHistech slide scanner (20x magnification) and saved to DICOM format.
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Assessment of Wooden Beams from Historical Buildings Using Ultrasonic Transmission Tomography
PublikacjaThe main goal of this study was non-destructive evaluation of wooden elements using ultrasonic waves. The inspection was carried out on wooden beams from a historical object. Elastic wave signals were processed by ultrasonic transmission tomography to obtain imaging of the internal structure of tested elements without disturbing their state and integrity. The focus was on the influence of wood anisotropy on the propagation of ultrasonic...
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The clamping selection method to reduce the vibration of large-size workpieces during the face milling process
PublikacjaThe article introduces a method for selecting the best clamping conditions to obtain vibration reduction during milling of large-size workpiece. It is based on experimental modal analysis performed for a set of assumed, fixing conditions of a considered workpiece to identify Frequency Response Functions (FRFs) for each tightening torque of the mounting screws. Simulated plots of periodically changing nominal cutting forces are...
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Measurements of raising of 160EC pantograph type
Dane BadawczeIn this description the results of the experiment and also simulation performed on the total assembly of the 160 EC pantograph type is given. Multibody dynamics of pantograph rising due to external torque and forces are measured for parameter validation of the pantograph model.
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A study about daylighting knowledge and education in Europe. Results from the first phase of the DAYKE project
PublikacjaThis paper presents selected results from the first stage of DAYKE (Daylight Knowledge in Europe), a 3- phase project that investigates the knowledge on daylighting in buildings among architecture students and practitioners across Europe. Subjective judgements from 561 students from 8 architecture universities in the EU, collected through two surveys in 2018. The key findings are: (i) the spatial distribution of comfort and mood...
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Justyna Kucińska-Lipka dr hab. inż.
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Non-destructive Testing of Wooden Elements
PublikacjaExamining the condition of wooden elements is crucial from the perspective of proper structure performance. If the deterioration in the internal wood condition, which displays no symptoms visible from the outside, is detected, the further spread of the deterioration can be prevented. Test results often point to the necessity of conducting repairs and, renovations, replacing the structure of wooden beams, or even substituting a...
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Oxygen vacancy-enriched V2O5·nH2O nanofibers ink for universal substrates-tolerant and multi means-integratable NH3 sensing
PublikacjaUniversal substrates-tolerant and multi means-integratable ammonia (NH3) sensing is highly desired in future Internet of Things in environmental monitoring, food security and early diagnosis of human diseases, however, is still less than satisfactory. Here, an oxygen vacancy-governed NH3 sensing has been developed with V2O5·nH2O nanofibers (NFs) ink, via combined thermal decomposition of ammonium metavanadate and dilution. As-obtained...
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Barbara Kusznierewicz dr hab. inż.
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TECHNICAL ENGLISH Vocabulary and Grammar - Open Resources / Otwarte Zasoby
Kursy OnlineCheck how good you are at technical vocabulary and grammar. Good luck and enjoy doing the exercises. klucz dostępu: VandG
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NUMERICAL MODELLING AND EXPERIMENTATION OF HISTORICAL CARPENTRY CORNER LOG JOINTS
PublikacjaThe main purpose of this research is to determine the stress distributions on the contact surfaces between the logs of the historical carpentry corner joints. The additional purpose is to compare the stress distribution for four different boundary conditions in the case of dry and wet pine wood. The paper presents the results of numerical analysis of the shortcorner dovetail connection and the saddle notch corner joint, which are...
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Methods of solving the Atkins equation determine shear angle with taking into consideration a modern fracture mechanics
PublikacjaIn the paper are presented methods of solving nonlinear Atkins equation . The Atkins equation describe shear angle with taking into account properties of material cutting. To solve Atkins equation has been used iterative methods: Newton method and simplified method of simple iteration. Method of simple iteration is presented in the form of Java application.
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MRM–MS of marker peptides and their abundance as a tool for authentication of meat species and meat cuts in single-cut meat products
PublikacjaThe abundance of protein markers in different types of meat cuts was explored in the context of authentication of raw meat (pork, beef and chicken) and processed meat products. Peptides originating from myoglobin (Mb) and myosin (My) were analyzed using multiple reaction monitoring mass spectrometry (MRM–MS). Analytical protocol was optimized for good repeatability (CV < 10%) and high sensitivity. The MS signal intensity of Mb...
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Reminiscencje: 18. Międzynarodowe Seminarium Obróbki Drewna w Vancouver. Obróbka drewna w British Columbia
PublikacjaPrzedstawiono sprawozdanie ze zwiedzania dwu zakładów produkcyjnych usytuowanych w miejscowosci Delta (BC): Craftsman Wood Products oraz Optimil Machinery. Zwiedzanie było jednym z punktów programu 18 IWMS w Kanadzie.
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Bartosz Dawidowicz dr inż.
OsobyAbsolwent Wydziału Budowy Maszyn Politechniki Gdańskiej Mgr inż. - Wydział Budowy Maszyn Politechniki Gdańskiej: specjalizacja: Maszyny i Urządzenia Przemysłu Spożywczego (2000)Dr - Wydział Budowy Maszyn Politechniki Gdańskiej, dyscyplina: budowa i eksploatacja maszyn, specjalność: wymiana ciepła (2008) Zainteresowania naukowe dotyczą m.in. technik wodorowych – ogniwa paliwowe, wykorzystanie wodoru na cele energetyczne, odnawialnych...
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Zasoby i ujęcia wód podziemnych 2022/23
Kursy OnlineZasoby wód podziemnych: klasyfikacja zasobów, metody obliczeń, zagrożenia ilościowe i jakościowe, ochrona wód podziemnych. Omówienie zasobów wód podziemnych w Polsce - główne użytkowe piętra wodonośne, zbiorniki i zasoby wód geotermalnych, wody butelkowane - mineralne, źródlane i lecznicze. Ujęcia wód podziemnych, rodzaje ujęć, strefy ochronne, projektowanie. Studenci wykonują projekt małego ujęcia wód podziemnych, korzystają...
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Przydatność urządzenia zmechanizowanego do wyznaczania trwałości ściernic do przecinania ręcznego
PublikacjaW artykule przedstawiono porównawcze wyniki badań trwałości ściernic do przecinania ręcznego, zużywanych na dwóch urządzeniach: z całkowicie ręcznym prowadzeniem przez operatora narzędzia i na urządzeniu zautomatyzowanym symulującym warunki przecinania ręcznego ściernicą. Wykazano, że dla tych dwóch urządzeń nie ma istotnej statystycznie korelacji pomiędzy wartościami wskaźnika wydajności względnej GA, reprezentującego trwałość...
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Vibration Surveillance System with Variable Stiffness Holder for Milling Flexible Details
PublikacjaEfficient milling of the flexible details (i.e. rotor blades, thin-walled elements) using slender ball-end tools is a difficult task due to possibility of vibration occurrence. Because of the existence of certain conditions (small depths of cutting, regeneration phenomena), cutting process may lose stability and self-excited chatter vibration may appear. Frequency of the chatter vibration is close to dominant natural frequency...
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Top 10 Iran Export Goods in 2011
Dane BadawczeIn the structure of Iranian exports the dominant position are different types of fuel (including chemical industry products). The structure of imports is much more fragmented. Positions worth of consideration are machinery and equipment, steel, vehicles parts, cereals and food.
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Zbigniew Siuzdak dr inż.
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SENSITIVITY ANALYSIS IN THE REHABILITATION OF HISTORIC TIMBER STRUCTURES ON THE EXAMPLES OF GREEK CATHOLIC CHURCHES IN POLISH SUBCARPATHIA
PublikacjaThis work concerns structural and sensitivity analysis of carpentry joints used in historic wooden buildings in south-eastern Poland and western Ukraine. These are primarily sacred buildings and the types of joints characteristic for this region are saddle notch and dovetail joints. Thus, in the study the authors focus on these types of corner log joints. Numerical models of the joints are defined and finite element simulations...
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Ocena sprężysto-plastycznych parametrów współpracy georusztu i gruntu w ba-daniu na wyciąganie.**2002, 196 s. 128 rys. 19 tab. bibliogr. 118 + 5 zał. Rozprawa doktorska /24.05.2002/ Wydz. Bud. Wod. Inż. Środ. Promotor: dr hab. inż. Adam Bolt.
Publikacja.
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Sterowanie zbiornikiem retencyjnym w celu uzyskania pożądanych warunków przepływu na odcinku cieku.**2002, 132 s. 62 rys. 34 tab. bibliogr. 87 poz. Rozprawa doktorska /20.12.2002/ Wydz. Bud. Wod. Inż. Środ. Promotor: prof. dr hab. inż. Jarosław J. Napiórkowski.
Publikacja.
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Factors Affecting the Rheological Properties of Foods
PublikacjaIn this chapter, engineering aspects concerning real body mechanics and the impact of respective food ingredients on said properties are presented together. Food is a complex matrix and each of macro and micro ingredients plays its role in the formation of rheologic properties, and minor changes in the basic ingredient structure may affect the change of these properties significantly. Basic analytic techniques are presented for...
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Emotions in polish speech recordings
Dane BadawczeThe data set presents emotions recorded in sound files that are expressions of Polish speech. Statements were made by people aged 21-23, young voices of 5 men. Each person said the following words / nie – no, oddaj - give back, podaj – pass, stop - stop, tak - yes, trzymaj -hold / five times representing a specific emotion - one of three - anger (a),...
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Analytical methodologies for determination of artificial sweeteners in foodstuffs- a review
PublikacjaArtificial high-intensity sweeteners are more and more frequently used for food production. Food industry tends to highlight beneficial aspects of their use, such as tooth-friendliness, rising-up quality of life of those suffering from different forms of diabetes and possibility of weight control without sacrificing favorite unhealthy drinks or snacks. On the other hand some of the consumers are deeply concerned about safety of...
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The Thin-Layer Microchromatography (μTLC) and TLC–FID Technique as a New Methodology in the Study of Lubricating Oils
PublikacjaThis paper concerns the possibility of using TLC coupled with a flame ionization detector (FID) and micro-TLC (μTLC) as precursors for microfluidized devices of analytical techniques to identify and determine the presence and content of the petroleum/vegetable oil base in the lubricating oils applied in cutting devices (chainsaws). This research is related to the problem of ensuring, in compliance with the requirements of environmental...
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The Course and the Effects of Agricultural Biomass Pyrolysis in the Production of High-Calorific Biochar
PublikacjaThe thermal pyrolysis of agriculture biomass has been studied in a fixed-bed reactor, wherethe pyrolysis was conducted at a steady temperature of 800◦C. This work analyses the pyrolysisproducts of six agricultural wastes: pistachio husks, walnut husks, sunflower hulls, buckwheat husks,corncobs and coconut shells. The conducted research compared examples of large waste biomassstreams from different parts of the world as a potential...
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Magdalena Szuflita-Żurawska
OsobyMagdalena Szuflita-Żurawska jest kierownikiem Sekcji Informacji Naukowo-Technicznej na Politechnice Gdańskiej oraz Liderem Centrum Kompetencji Otwartej Nauki przy Bibliotece Politechniki Gdańskiej. Jej główne zainteresowania badawcze koncentrują się w obszarze komunikacji naukowej oraz otwartych danych badawczych, a także motywacji i produktywności naukowej. Jest odpowiedzialna między innymi za prowadzenie szkoleń dla pracowników...
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Zasoby i ujęcia wód podziemnych 2022/23 NS
Kursy OnlineZasoby wód podziemnych: klasyfikacja zasobów, metody obliczeń, zagrożenia ilościowe i jakościowe, ochrona wód podziemnych. Omówienie zasobów wód podziemnych w Polsce - główne użytkowe piętra wodonośne, zbiorniki i zasoby wód geotermalnych, wody butelkowane - mineralne, źródlane i lecznicze. Ujęcia wód podziemnych, rodzaje ujęć, strefy ochronne, projektowanie. Studenci wykonują projekt małego ujęcia wód podziemnych, korzystają z...
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Marek Przyborski dr hab. inż.
OsobyMarek Przyborski (ur. 20.03.1964 r. w Chełmży) – specjalista z zakresu teledetekcji i fotogrametrii bliskiego zasięgu. Prowadzi badania w zakresie wykorzystania tzw. „szybkich kamer” do analizy zjawisk szybkozmiennych. Współautor i autor publikacji traktujących o szeroko rozumianej teledetekcji w zastosowaniach związanych z budownictwem, transportem, inżynierią środowiska oraz bezpieczeństwem narodowym. Jest autorem licznych publikacji...
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Combination of instrumental and qualitative descriptive analysis for evaluation of selected tonic waters quality features
PublikacjaThe combination of sensory and instrumental analysis was applied for quality assurance of selected tonic waters. The Quantitative Descriptive Analysis (QDA) in terms of fourteen sensory attributes (aroma, astringency, bite, burn, numbing, tongue heaviness, carbonation, mouth coating, sweet taste, sour taste, bitter taste, sweet aftertaste, sour aftertaste, bitter aftertaste) of selected tonic waters was performed by sensory experts....
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Determining pesticide contamination in honey by LC-ESI-MS/MS - Comparison of pesticide recoveries of two liquid-liquid extraction based approaches
PublikacjaHoney, a valuable food product, may be contaminated by xenobiotics during its production and/or harvest. The determination of trace levels of contaminants in a complex matrix like honey still presents a challenge to analytical chemists. The aim of this work was to assess and compare the extraction efficiencies of 30 pesticide residues (acaricides, insecticides, herbicides, fungicides), belonging to over 15 different chemical classes....
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Analysis
PublikacjaNew food products and diverse formulations containing the regulated steviol glycoside(s) as well as Stevia extracts or Stevia leaves have been brought on the global market. The upcoming multitude of such food products, but also their falsification and adulteration, does have impact on food analysis. Robust high-throughput methods that cope with different food matrices are required for food control to ensure food safety. The analysis...
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Karolina Sobieraj mgr inż.
OsobyMgr inż. Karolina Sobieraj w 2018 r. ukończyła dwustopniowe studia na kierunku Odnawialne Źródła Energii i Gospodarka Odpadami w specjalności Gospodarka Odpadami, z wyróżnieniem w postaci stypendium Ministra Nauki i Szkolnictwa Wyższego dla studentów za wybitne osiągnięcia naukowe w roku akademickim 2017/2018. Od października 2019 r. podjęła studia w Szkole Doktorskiej UPWr w dyscyplinie inżynieria środowiska, górnictwo i energetyka....
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Multimodal detection and analysis of a new type of advanced Heinz body-like aggregate (AHBA) and cytoskeleton deformation in human RBCs
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Annotating Words Using WordNet Semantic Glosses
PublikacjaAn approach to the word sense disambiguation (WSD) relaying onthe WordNet synsets is proposed. The method uses semantically tagged glosses to perform a process similar to the spreading activation in semantic network, creating ranking of the most probable meanings for word annotation. Preliminary evaluation shows quite promising results. Comparison with the state-of-theart WSD methods indicates that the use of WordNet relations...
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Study of a Multicriterion Decision-Making Approach to the MQL Turning of AISI 304 Steel Using Hybrid Nanocutting Fluid
PublikacjaThe enormous use of cutting fluid in machining leads to an increase in machining costs, along with different health hazards. Cutting fluid can be used efficiently using the MQL (minimum quantity lubrication) method, which aids in improving the machining performance. This paper contains multiple responses, namely, force, surface roughness, and temperature, so there arises a need for a multicriteria optimization technique. Therefore,...
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Diagnosis of Damage in a Steel Tank Model by Shaking Table Harmonic Tests
PublikacjaDiagnosis of damage in civil engineering structures has recently become an important issue in the safety assessment procedure. Among a number of different approaches, a method of measuring the changes in natural frequencies is one of the most effective indicators of global damage. It has been successfully applied to relatively small. structures, however, the tests on large structures are very difficult and the practical application...
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Thermal and technological aspects of double face grinding of Al2O3 ceramic materials
PublikacjaDouble face grinding with planetary kinematics is a process to manufacture workpieces with plan parallel functional surfaces, such as bearing rings or sealing shims. In order to increase the economic efficiency of this process, it has to be advanced permanently. The temperature in the contact zone of most grinding processes has a huge influence on the process efficiency and the workpiece qualities. In contrast to most grinding...
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Thermal and technological aspects of double face grinding of C45 carbon steel
PublikacjaIn grinding, the contact zone temperature is a decisive factor influencing the achievable surface quality and the grinding tool wear. In contrast to other grinding processes, only few information regarding double face grinding with planetary kinematics when processing steel is known up to date. Since the successive substitution of in-dustrial double-sided lapping processes by double-sided grinding, it has become necessary to the...
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Analiza stateczność fundamentów bezpośrednich obciążonych cyklicznie.**2002, 138 s. + [4 zał.na CD-ROM], 111 rys. 34 tab. bibliogr. 49 poz. ma-szyn. Rozprawa doktorska /19.04.2002/ Wydz. Bud. Wod. i Inż. Środ. PG. Promotor: prof. zw. dr hab. inż. B. Zadroga.
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Rozprzestrzenianie się i rozkład substancji ropopochodnych w nasyconymośrodku gruntowym na przykładzie związków BTEX.**2003, 173 s.+ zał. 60 rys. 12 tab. bibliogr. 116 poz. Rozprawa doktorska /23.05.2003/ Wydz. Bud. Wod. i Inż. Środ. Promotor: dr hab. inż. Adam Bolt, prof. PG
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Distribution of roughness and waviness components of turned surface profiles
PublikacjaThe paper presents a spectral formulation of surface profile irregularity in a wideband frequency range for roughness, waviness and shape components along the measured length. A unique distribution of roughness and waviness components is proposed, according to the nature of their origination in the course of machining with tools of defined cutting edge, as distinct from standard filtration in measurements of surface irregularities....
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Assessing Acute Toxicity of Selected Packages Internal Layers Extracts using Microtox®
PublikacjaIn the scientific literature related to the widely understood issue of packaging materials designed to have contact with food (food contact materials), there is much information on raw materials used for their production, as well as their physiochemical properties, types and parameters. Unfortunately, not much attention is given to the issues concerning migration of toxic substances from packaging and its actual influence on the...
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Analysis of the influence of polystyrene microplastics and their derivatives on the DNA of human colon epithelial cells HT29 with the comet assay
PublikacjaWe have been using plastic for almost a century and nowadays a lot of them circulates as pollutants in the environment and still defragmenting to micro and nanoscale. The exposition through the food chain and its precise impact on human health is still not clear. In our study, we tested real food packaging after contact with food products and real thermoinsulation and environmental samples of polystyrene in different model liquids,...
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Report no: WOiO /II/46/2015 - Construction node verification test, estimation of breaking load (shear force) and destruction form
PublikacjaA new generation of tanks for LNG transportation has been designed. Mass reduction forced our customer to use three different materials: austenitic steel, aluminium alloy and LNG compressed wood between them. The expertise concerns structural node between tank foundation and suspension. Expertise contains: description of object of test, test principals, results and conclusions
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Biochemistry - Laboratory exercises - Nowy
Kursy OnlineExerise 1. The ability to accumulate metal cations by edible mushrooms, comparison with edible plants Exercise 2. Measurement of activity of glutathione S-transferases - the detoxifying enzymes present in the cytosol of eukaryotic cells Exercise 3. Cell membranes permeability Exercise 4. Detection of mutagenic substances using Ames test Exercise 5. Gluten content in food products part 1. Exercise 6. Gluten content in food...
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Biochemistry - Laboratory exercises
Kursy OnlineExerise 1. The ability to accumulate metal cations by edible mushrooms, comparison with edible plants Exercise 2. Measurement of activity of glutathione S-transferases - the detoxifying enzymes present in the cytosol of eukaryotic cells Exercise 3. Cell membranes permeability Exercise 4. Detection of mutagenic substances using Ames test Exercise 5. Gluten content in food products part 1. Exercise 6. Gluten content in food...
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Ewa Marjańska dr inż.
OsobyEwa Marjańska pracuje jako adiunkt na Politechnice Gdańskiej na Wydziale Zarządzania i Ekonomii. Uzyskała stopień doktora w dziedzinie nauk o towaroznawstwie. Jej zainteresowania naukowe koncentrują się przede wszystkim na metodach ilościowego pomiaru jakości, w tym analizie jakości żywności i systemach zarządzania jakością. Jest autorką artykułów opublikowanych w recenzowanych czasopismach o zasięgu międzynarodowym, m.in. Desalination...
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Representing and Managing Experiential Knowledge with Decisional DNA and its Drimos® Extension
PublikacjaThe Semantic Web concept is proposing a future concept of the WorldWideWeb (WWW) where both humans and man-made systems are able to interconnect and exchange knowledge. One of the challenges of Semantic Web is smart and trusted accommodation of knowledge in artificial systems so it can be unified, enhanced, reused, shared, communicated and distributed with added aptitude. Our research represents an important component of addressing...
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Edyta Malinowska-Pańczyk dr hab. inż.
OsobyEdyta Malinowska-Pańczyk w 1995 r. ukończyła Technikum Przemysłu Spożywczego w Krajence (specjalność analiza środków spożywczych). Kontynuowała naukę na Wydziale Technologii Żywności Akademii Rolniczej w Poznaniu (obecnie Uniwersytet Przyrodniczy, Wydział Nauk o Żywności i Żywieniu). W 2000 r., po uzyskaniu tytułu magistra inżyniera rozpoczęła naukę na Studium Doktoranckim Politechniki Gdańskiej. W 2006 r. obroniła pracę doktorską...
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Industrial wastewater as an external carbon source for optimization of nitrogen removal at the "Wschod" WWTP in Gdansk (Poland)
PublikacjaCarbon source alternatives for denitrification belong to the highest research area priorities as they allow to optimize N removal within the existing capacities. In particular, some food industry effluents appear to be good candidates for such alternatives due to their high C/N ratios and high content of readily biodegradable organic fraction. The aim of this study was to determine the immediate effects of dosing different types...
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Valorization of Bioplastic Waste: A Review on Effective Recycling Routes for the Most Widely Used Biopolymers
PublikacjaPlastics-based materials have a high carbon footprint, and their disposal is a considerable problem for the environment. Biodegradable bioplastics represent an alternative on which most countries have focused their attention to replace of conventional plastics in various sectors, among which food packaging is the most significant one. The evaluation of the optimal end-of-life process for bioplastic waste is of great importance...
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Optical transmission of the Niobium thin films
Dane BadawczeNiobium thin films with a thickness of 200nm were deposited n a Corning glass substrate by magnetron sputtering method. The optical transmission spectra in a visible light range were.recorded. Investigations showed a good optical transmission thru the layers for each samples, annealed at various temperatures. For measurements samples annealed at 500,...
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Biopolyols obtained via microwave-assisted liquefaction of lignin: structure, rheological, physical and thermal properties
PublikacjaThe present study examined the application of polyols obtained via microwave-assisted liquefaction of lignin in the production of rigid polyurethane foam. Lignin was liquefed in crude glycerol and 1,4-butanediol at diferent temperatures (130–170 °C), without a catalyst and using various biomass concentrations (15 and 30 wt%). The physicochemical properties, process yield, and FTIR-based identifcation of the obtained polyols were...
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The critical rotational speed of circular saw: simple measurement method and its practical implementations.
PublikacjaProducenci pił tarczowych są zobligowani do podawania ich dopuszczalnych prędkości obrotowych. Jednakże, umieszczane przez nich prędkości na piłach są często bliskie prędkościom krytycznym lub je przewyższają. Przecinanie takimi narzędziami może być więc niebezpieczne dla obsługującego. Praca przedstawia prostą metodologię wyznaczania prędkości obrotowych krytycznych pił tarczowych. Badania były prowadzone z wykorzystaniem technik...
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Segmented bio-based polyurethane composites containing powdered cellulose obtained from novel bio-based diisocyanate mixtures
PublikacjaA considerable number of research works focus on the positive influence of cellulose on the properties of polymer-based composites and their wide range of application possibilities. The present work is focused on the synthesis of novel bio-based polyurethane (bio-PU) composites filled with powdered cellulose (microcellulose, MC) in an amount of 5 wt.%. Bio-PU composites were synthesized via a non-solvent prepolymer method. First,...
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Robert Tylingo dr hab. inż.
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Unités phraséologiques au pays de la traduction: transfert des collocations nomino-adjectivales avec le lexème «femme» dans la traduction de la littérature houellebecquienne du français vers l’italien et le polonais
PublikacjaThe present paper examines the transfer of nomino-adjectival collocations based on the word ‘femme’ (‘woman’) in the literary translation from French into Italian and Polish. The lexical connection analysed in the article can be defined as the habitual juxtaposition of a word with another word (or words) that has a significant frequency in a given language. The research corpus comprises seven Michel Houellebecq’s novels written...
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Analiza stref deformacji w modelowym ośrodku rozdrobnionym.**2002, 238 s.189 rys. 13 tab. bibliogr. 82 poz. + 3 zał. i CD-ROM z 3 rys., 8 tab. Rozprawa doktorska /19.12.2002/ Wydz. Bud. Wod. Inż. Środ. Promotor: dr hab. prof. zw. Zbigniew Sikora
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Convenient and Efficient Diastereoselective Preparation of Functionalized Z -Alkenyl Sulfides
PublikacjaWe have developed an efficient and convenient regio‐ and stereoselective reduction of the alkynyl sulfides with pinacolborane in the presence of copper(I) chloride to produce (Z)‐alkenyl sulfides in good and very good yields. The functionalized alkynyl sulfides are readily available based on the reaction of lithium acetylides with thiotosylates under mild conditions.
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Diagnosis of Damage in a Steel Tank with Self-Supported Roof through Numerical Analysis
PublikacjaThe safety of civil engineering structures is one of the most important issues of building industry. That is why the assessment of the damage-involved structural response has recently become of major concern to engineers. Among a number of different approaches to diagnosis of damage, the method of measuring the changes in natural frequencies is considered to be one of the most effective indicators of global damage. From the practical...
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Joanna Bach-Głowińska dr inż. arch.
OsobyI am an architect by education (M.Sc. Arch 1994) and practice (1994-2011), a Town Planner by practice (1999-2017, Ministerial Entitlements 1655/2002), and a Researcher (Ph.D.2012, Postdoctoral Research Fellow at Glasgow School of Art 2013 - 2015, also teaching on Gdansk University of Technology since 2014). I have been the Principal Investigator of Era Net Urban Transformation Capacities EmbedterLabs: Better Embedded Labs for More...
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Evolution of Animats Following a Moving Target in an Artificial Ecosystem
PublikacjaMany biological animals, even microscopically small, are able to track moving sources of food. In this paper, we investigate the emergence of such behavior in artificial animals (animats) in a 2-dimensional simulated liquid environment. These "predators" are controlled by evolving artificial gene regulatory networks encoded in linear genomes. The fate of the predators is determined only by their ability to gather food and reproduce—no...
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Analysis of volatile fraction of hybrid fruit pulp using Proton Transfer Reaction - Time-Of-Flight Mass Spectrometry
PublikacjaFruits and vegetables are important ingredients in human diet. Because of this, it is very important to know their exact composition and to control their quality. Based on the aroma of food products, it is possible to pre-evaluate their quality and freshness. The aim of this work was to characterize the volatile fraction of the hybrid fruit ‘sweetie’ using the modern analytical device PTR-TOFMS. Hybrid fruit samples are human-made...
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Determination of Selected Metals in Fruit Wines by Spectroscopic Techniques
PublikacjaThe determination of metals in different types of food and beverages samples has drawn significant attention due to several reasons with the most important one being the nutritional and toxic effects of these elements or their compounds. The knowledge of certain elements content in wines/fruit wines is of special interest due to their toxicity in case of excessive intake and also the effect they seem to have on the organoleptic...
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Systemy zarządzania i ich certyfikacja w przedsiębiorstwach spożywczych
PublikacjaW opracowaniu ukazano rolę obligatoryjnych systemów jakości odpowiedzialnych za bezpieczeństwo żywności z punktu widzenia przedsiębiorcy. W pracy omówiono wybrane systemy (GMP/GHP, HACCP) oraz certyfikację systemu HACCP obowiązującą normą ISO 22000. Przedstawiono również liczbę certyfikacji Systemu Zarządzania Bezpieczeństwem Żywności – Wymagania dla organizacji w całym łańcuchu żywnościowym w latach 2007-2011 w Polsce i na świecie,...