89 research outputs found

    Usporedba fizikalno-kemijskih i senzorskih svojstava sireva u salamuri proizvedenih od mlijeka i mješavine mlijeka i maslinovog ulja

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    The present paper is focused on the physicochemical and sensory parameters of low-fat white brined cheese-like product obtained from the substitution of milk fat by milk-olive oil emulsion, in comparison with full and low-fat control cheeses. Formulated milk samples were initially pasteurized at 63 °C for 30 min, cooled down to 35 °C, and subsequently 0.35 mL L-1 of microbial rennet were added. The obtained cheeses were stored at 4 °C during 24 hours and then analyzed for physicochemical and sensory properties. The replacement of milk fat in white brined cheese resulted in a lower total solids content due to the higher water-binding capacity of fat replacers used. Fat content was significantly higher for low-fat white brined cheese-like product than in low-fat control cheese. This result was attributed to fat retention capacity of the fat replacers used. Lipolysis index was the highest in the case of low-fat white brined cheese-like product due to changes in cheese microstructure after fat replacers incorporation in low-fat products. Milk-olive oil emulsion showed the lowest cheese-making yield compared to its full and low-fat counterparts. The cheese like- product sample received a significantly lower overall impression score by the panelists than full and low-fat cheeses.Cilj ovog rada bio je usporediti fizikalno kemijska i senzorska svojstva posnih zamjena za sireve u salamuri proizvedenih od mješavine mlijeka i maslinovog ulja u odnosu na posne i punomasne sireve tog tipa. Pripremljeni uzorci mlijeka odnosno smjesa mlijeka i ulja pasterizirani su na 63 °C/30 min, ohlađeni na 35 °C te im je dodano 0,35 mL L-1 sirila mikrobnog porijekla. Proizvedeni uzorci sira čuvani su na 4 °C tijekom 24 sata te je potom provedena analiza fizikalno kemijskih i senzorskih svojstava. Zamjena mliječne masti uljem rezultirala je nižim udjelom suhe tvari uslijed veće sposobnosti vezanja vode od strane zamjenske masti. Udio masti je bio značajno viši u sirnim zamjenama nego u kontrolnom uzroku posnog sira, što se može povezati s kapacitetom zadržavanja masnoća od strane korištene zamjene za mliječnu mast. Najveći indeks lipolize zabilježen je u posnoj zamjeni za sir i to zbog promjena u mikrostrukturi sira koje su nastupile dodatkom zamjena za mliječnu mats i njihove ugradnje zamjenski proizvod. Mješavina maslinovog ulja i mlijeka odlikovala se najnižim prinosom sira, a tako proizvedena zamjena za sir dobila je značajno niže ocjene prilikom senzorskog ispitivanja u odnosu na punomasni i posni sir

    Fusing Event-based Camera and Radar for SLAM Using Spiking Neural Networks with Continual STDP Learning

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    This work proposes a first-of-its-kind SLAM architecture fusing an event-based camera and a Frequency Modulated Continuous Wave (FMCW) radar for drone navigation. Each sensor is processed by a bio-inspired Spiking Neural Network (SNN) with continual Spike-Timing-Dependent Plasticity (STDP) learning, as observed in the brain. In contrast to most learning-based SLAM systems%, which a) require the acquisition of a representative dataset of the environment in which navigation must be performed and b) require an off-line training phase, our method does not require any offline training phase, but rather the SNN continuously learns features from the input data on the fly via STDP. At the same time, the SNN outputs are used as feature descriptors for loop closure detection and map correction. We conduct numerous experiments to benchmark our system against state-of-the-art RGB methods and we demonstrate the robustness of our DVS-Radar SLAM approach under strong lighting variations

    Evaluation de la sécurité du circuit des médicaments anticancéreux dans un hôpital régional en Tunisie

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    Introduction: Parmi les événements indésirables, ceux liés au circuit des médicaments occupent une place importante et risquent de causer un préjudice grave aux patients. Dans ce contexte, nous avons mené cette étude dans l'optique de décrire et d'évaluer le circuit des médicaments anticancéreux dans un hôpital régional tunisien. Méthodes: Il s'agit d'une étude évaluative du risque lié aux médicaments  anticancéreux, type « visite de risque » menée sur une période de 15 jours au cours de l'année 2014 au service de cancérologie de l'hôpital régional de Gafsa (Tunisie). Cette méthode d'évaluation est inspirée de celle conduite par le projet « SECURIMED » développé par le Comité de Coordination de l'Evaluation Clinique et de la Qualité en Aquitaine (CCECQA), en France. Résultats: Dans notre étude, l'observation du circuit des médicaments anticancéreux a révélé certaines insuffisances. On a noté que la répartition des missions des différents acteurs est sujette parfois à des glissements de tâches. Un manque important ainsi que une inadéquation aux normes au niveau des équipements nécessaires pour la préparation et la protection des professionnels manipulant ces  médicaments ont été également décelés. Conclusion: La sécurisation du circuit des médicaments devrait être une priorité inscrite dans l'ensemble des démarches nationales et partagée par tous les intervenants et ce dans l'optique d'atteindre un objectif prémium : la qualité de la prise en charge globale et la sécurité des patients.Key words: Risk management, anticancer drugs, patient safety

    Numerical simulation of the femur fracture for different cemented hip femoral prosthesis under forces during stumbling

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    Total hip prosthesis was used for the patients who has the hip fracture and unable to recover naturally. To design highly durable prostheses one has to take into account the natural processes occurring in the bone. In this paper, the static load analysis is based, by selecting the peak load during the stumbling activity. Two different implant materials have been selected to study appropriate material. The results showed the difference of maximum von Misses stress and detected the fracture of the femur shaft for different model (Charnley and Osteal) implant with the extended finite element method (X-FEM), and after the results of the numerical simulation of X-FEM for different was used in determining the stress intensity factors (SIF) to identify the crack behavior implant materials for different crack length. It has been shown that the maximum stress intensity factors were observed in the model of Charnley

    Effect of coating thickness on the friction properties of rubber-sphere on rubber-coated-plane contacts

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    Nous présentons une étude expérimentale du frottement d'un contact entre une sphère caoutchouteuse et une lame de verre revêtue d'un film de caoutchouc d'épaisseur variable. Nous montrons que le dépôt joue un rôle clé dans les propriétés de rupture de l'interface de contact : des variations d'un facteur trois du coefficient de frottement statique sont observées lorsque l'épaisseur est modifiée. Certaines interprétations sont discutées pour expliquer le phénomène impliquant notamment le rôle de la viscoélasticité du caoutchouc

    Determining the best weightage feature in parameterization process of GCCD model for clone detection in C-based applications

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    The term 'code clone' relates to code that has been replicated many times in a program. Primarily, Type-1, Type-2, Type-3, and Type-4 serve as the four distinct categories for the classification of code clones. Distinct code clone approaches and tools have been implemented for identifying code clones over the years. To overcome the limitation of generalization in recognizing all types of clones, Generic Code Clone Detection (GCCD) model is developed. The five procedures that make up the GCCD model's foundational structure are pre-processing, transformation, parameterization, categorization, and match detection. However, the preceding GCCD model can only detect all types of code clone in Java applications. In light of this limitation, the study proposes a code clone detection model based on the GCCD model, which has the capability to support other programming languages in various applications. The primary objective of this proposed research is to enhance the process in Generic Code Clone Detection (GCCD) model that can improve the code clone detection result, specifically in C-based applications. To achieve the desired objective, some enhancements in the GCCD model have been recommended which are to propose a constant and weightage for Pre-processing and Parameterization process in GCCD model. The proposed work will be tested in a case study involving four C applications. As determined by the code clone detection results from the proposed enhancement, void with its weightage is the preeminent constant and weightage for the Generic Code Clone Detection Model in C-based applications

    Numerical simulation of the femur fracture with and without prosthesis under static loading using extended finite element method (X-FEM) / Zagane Mohammed El Sallah … [et al.]

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    The strength of the bone depends on its mineralization state and its geometry, which depend on the loads supported. Thus the bone optimizes its mass and its geometry through the process of remodeling and improves its lift. This phenomenon can be altered by metabolic imbalances such as fall or trauma. The result is fractures, the most important of which are the proximal femur. The direct consequence of this type of fracture is the replacement of the joint by a Total Hip Prosthesis (PTH). The number of prosthetic implantations continues to increase given the longer life expectancy of patients.. This study is to compare the modeling to identify regions of fracture risk of femur and after the location of the total hip prosthesis (THP) by the extended finite element method (X-FEM) under static stress for a deferent orientation loading and for two materials (isotropic / orthotropic). The results show that the distribution of von mises stresses in the components of the femoral arthroplasty depends on the material and the design of the stem and show that the vertical loading leads to fracture of the femoral neck and the horizontal loading leads to the fracture of diaphysis femoral. The isotropic consideration of bone leads to bone fracture by propagation of the fissure, but the orthotropic consideration leads to the fragmentation of the bone. This modeling will help to improve the design of the indoor environment to be safer for the means of passenger transport

    Aridity gradients shape intraspecific variability of morphological traits in native Ceratonia siliqua L. of Morocco

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    The carob tree (Ceratonia siliqua L.) is a significant fruit tree in the Mediterranean region with cultural, biological, and ecological importance. Despite its importance, intraspecific trait variability (ITV) in carob trees has been largely overlooked in previous studies. Understanding ITV and its relationship with environmental conditions is crucial for conservation and breeding programs. In this study, we investigated the variability of carob pod and seed-related traits across different ecological scales in 25 studied populations in Morocco. Significant differences in morphological traits were observed between carob populations at various ecological levels, and pod-related traits exhibited greater variability than seed traits. Correlation analysis revealed strong associations between carob morphological traits and environmental conditions, with altitude and aridity index playing an influential role. The aridity gradient was strongly related to changes in pod size, seed number, and size, as well as seed yield. Our findings highlight an important ITV reaching 45% at the intra-population level, 36.5% at the inter-geographic level, and 30% at the inter-population level. Overall, this study contributes valuable insights into the ecology and adaptation of carob trees, emphasizing the importance of considering intraspecific variability when studying this remarkable species. This knowledge is critical for addressing the challenges posed by climate change and human activities on the long-term survival and ecological functioning of carob populations

    Influence of nanocatalyst on oxidative coupling, steam and dry reforming of methane: A short review

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    The influence of nanocatalyst on three main reactions for natural gas conversion such as steam reforming, dry reforming and oxidative coupling of methane has been reviewed with an emphasis on the literatures’ reports and results. Although literatures’ experimental results showed that the conversion of methane over the nanocatalysts was higher than that obtained from the ordinary catalysts, there was no correlation between the conversion of methane and the average sizes of the nanoparticles. The results of some nanocatalyst are also compared to ordinary catalysts in the literature which shows the improved influence of nanoscale catalyst performance on methane conversion

    Hyperspectral Imaging and Classification for Grading Skin Erythema

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    International audienceErythema is an inflammatory condition of the skin that is commonly used as a feature to monitor the progression of cutaneous diseases or treatment induced side effects. In radiation therapy, skin erythema is routinely assessed visually by an expert using standardized grading criteria. However, visual assessment (VA) is subjective and commonly used grading tools are too coarse to score the onset of erythema. Therefore, an objective method capable of quantitatively grading early erythema changes may help identify patients at higher risk for developing severe radiation induced skin toxicities. The purpose of this study is to investigate the feasibility of using hyperspectral imaging (HSI) for quantitative assessment of early erythema and to characterize its performance against VA documented on conventional digital photographic red-green-blue (RGB) images. Erythema was induced artificially on 3 volunteers in a controlled pilot study; and was subsequently measured using HSI and color imaging. HSI and color imaging data was analyzed using linear discriminant analysis (LDA) to perform classification. The classification results, including accuracy, and precision, demonstrated that HSI is superior to color imaging in skin erythema assessment
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