Browse

In this paper are presented some researches concerning the recycling process of Co-Cr powders that is used by the sintering process DMLS. Direct Metal Laser Sintering process is an additive laser manufacturing technology and is used in different domains like tooling, aerospace, medicine and auto. In the tooling domain, Co-Cr alloy powder is sintered by DMLS process, using a Phenix Systems machine, for obtain different mold prototypes. Co-Cr alloy powder presents good mechanical and corrosion properties. The SEM an...

In this paper are presented some researches concerning the recycling process of Co-Cr powders that is used by the sintering process DMLS. Direct Metal Laser Sintering process is an additive laser manufacturing technology and is used in different domains like tooling, aerospace, medicine and auto. In the tooling domain, Co-Cr alloy powder is sintered by DMLS process, using a Phenix Systems machine, for obtain different mold prototypes. Co-Cr alloy powder presents good mechanical and corrosion properties. The SEM an...

Use of fish meals or oils in the poultry diets has made it possible to increase the level of long chain n-3 fatty acids in meat. When meat is enriched with polyunsaturated fatty acids (PUFA), all vegatble fat sources are less effective than marine fats. This effect results due to the content of n-3 fatty acids (FA) because marine fats or oils are composed of eicosapentanoic acid (EPA) and dosahexaenoic acid in generally a higher proportion whereas vegatable oils contain linolenic acid (LNA) whose conversion to lon...

Use of fish meals or oils in the poultry diets has made it possible to increase the level of long chain n-3 fatty acids in meat. When meat is enriched with polyunsaturated fatty acids (PUFA), all vegatble fat sources are less effective than marine fats. This effect results due to the content of n-3 fatty acids (FA) because marine fats or oils are composed of eicosapentanoic acid (EPA) and dosahexaenoic acid in generally a higher proportion whereas vegatable oils contain linolenic acid (LNA) whose conversion to lon...

In the present study are presented the causes and consequences of a bacterial disease signaled to the silver carp farmed in polyculture with Cyprinids and other fish species in ponds. In the spring of 2017, the presence of a bacterial disease of the species Hypophthalmichthys molitrix cultured within the Fish Culture Research and Development Station Nucet, Romania, was first reported. The illness caused the weakening of the fish body (Fulton's coefficient = 1,6 compared to 1,9 for healthy fish) and a slight anemia...

In the present study are presented the causes and consequences of a bacterial disease signaled to the silver carp farmed in polyculture with Cyprinids and other fish species in ponds. In the spring of 2017, the presence of a bacterial disease of the species Hypophthalmichthys molitrix cultured within the Fish Culture Research and Development Station Nucet, Romania, was first reported. The illness caused the weakening of the fish body (Fulton's coefficient = 1,6 compared to 1,9 for healthy fish) and a slight anemia...

The paper presents the results obtained in the artificial reproduction of carp breeds (Cyprinus carpio): Frasinet, Ineu and Ropsa between 2015 and 2017. Carp used in artificial breeding experiments (body weight 4,5 - 8,0 kg / ex., 4-7 years old) were raised in the ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For the induction of maturation and ovulation the carp pituitary extract (CPE) and Nerestin 6A were used. The carp pituitary extract (CPE) was given i...

The paper presents the results obtained in the artificial reproduction of carp breeds (Cyprinus carpio): Frasinet, Ineu and Ropsa between 2015 and 2017. Carp used in artificial breeding experiments (body weight 4,5 - 8,0 kg / ex., 4-7 years old) were raised in the ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For the induction of maturation and ovulation the carp pituitary extract (CPE) and Nerestin 6A were used. The carp pituitary extract (CPE) was given i...

It often happens that wheat flour does not have the proper physical, biochemical and technological properties for bakery, biscuits, pasta, etc. or to be nutritionally inappropriate. This occurs when the biochemical composition is unbalanced. Because the structure and quality of the bread is based on the gluten skeleton, the variation in gluten content will obviously influence the quality of the bread. Also, gliadin / glutenin gluten ratio, which influences dough elasticity, extensibility and flour ability to retai...

It often happens that wheat flour does not have the proper physical, biochemical and technological properties for bakery, biscuits, pasta, etc. or to be nutritionally inappropriate. This occurs when the biochemical composition is unbalanced. Because the structure and quality of the bread is based on the gluten skeleton, the variation in gluten content will obviously influence the quality of the bread. Also, gliadin / glutenin gluten ratio, which influences dough elasticity, extensibility and flour ability to retai...

The paper presents the results of the experiments conducted to study the effect of stimulating maturation and ovulation with different types of hormones on the main parameters characterizing the artificial reproduction process of Silurus glanis L. European catfish used in artificial breeding experiments (body weight = 4.0 - 10.0 kg / ex., age 5-8 years) were raised in ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For induction of maturation and ovulation, c...

The paper presents the results of the experiments conducted to study the effect of stimulating maturation and ovulation with different types of hormones on the main parameters characterizing the artificial reproduction process of Silurus glanis L. European catfish used in artificial breeding experiments (body weight = 4.0 - 10.0 kg / ex., age 5-8 years) were raised in ponds within the experimental base of the Fish Culture Research and Development Station Nucet, Romania. For induction of maturation and ovulation, c...

The paper presents elements of great interest of some researches referring to strategies and processes to reduce the level of alcohol in wine. In recent years, various methods of reducing the alcoholic concentration of wines have been developed, methods like improved technologies of grapes growing, and also developing new ways of removing alcohol from wine. When selecting the method of correcting the alcohol level there must be analyzed various factors such as: the type of wine, the amount of wine produced, the co...

The paper presents elements of great interest of some researches referring to strategies and processes to reduce the level of alcohol in wine. In recent years, various methods of reducing the alcoholic concentration of wines have been developed, methods like improved technologies of grapes growing, and also developing new ways of removing alcohol from wine. When selecting the method of correcting the alcohol level there must be analyzed various factors such as: the type of wine, the amount of wine produced, the co...

Klebsiella pneumoniae and Acinetobacter spp. strains are opportunistic pathogens frequently involved in the etiology of nosocomial infections in immunocompromised patients. A major factor amplifying the risk of these infections is prolonged period of hospitalised patients, especially in intensive care units. Statistically, the strains belonging to the Enterobacteriaceae family and those of the Acinetobacter spp. are ranked the first and respectively, the second among Gram negative bacilli, whose incidence has incr...

Klebsiella pneumoniae and Acinetobacter spp. strains are opportunistic pathogens frequently involved in the etiology of nosocomial infections in immunocompromised patients. A major factor amplifying the risk of these infections is prolonged period of hospitalised patients, especially in intensive care units. Statistically, the strains belonging to the Enterobacteriaceae family and those of the Acinetobacter spp. are ranked the first and respectively, the second among Gram negative bacilli, whose incidence has incr...

Lonicera japonica is a climbing plant which can grow up to 10 m in length; the young stems are often hairy, while mature stems display a brownish bark and are empty on the inside, the leafs are oval and long, the flowers are known for their appealing perfume, white and yellow in colour, and the fruit is small and black. It is a persistent climbing plant, which offers an impressive bouquet of colour, flowers and an inviting perfume, which made it famous in our country as well as abroad. During the study, two rootin...

Lonicera japonica is a climbing plant which can grow up to 10 m in length; the young stems are often hairy, while mature stems display a brownish bark and are empty on the inside, the leafs are oval and long, the flowers are known for their appealing perfume, white and yellow in colour, and the fruit is small and black. It is a persistent climbing plant, which offers an impressive bouquet of colour, flowers and an inviting perfume, which made it famous in our country as well as abroad. During the study, two rootin...

Campsis radicans is part of the Bignoniaceae family and has the appearance of a deciduous vine almost always green. It can reach up to 12 m in length, its leaves are a shiny, dark green and its flowers display a yellow ? orange colour, sometimes tending towards red, with a tubular form, 8 cm long and approximately 4 cm wide. During the experiment, we monitored the influence of cutting length on the cutting rooting rate, the main purpose being the analysis of the influence of the three experimental factors (sublaye...

Campsis radicans is part of the Bignoniaceae family and has the appearance of a deciduous vine almost always green. It can reach up to 12 m in length, its leaves are a shiny, dark green and its flowers display a yellow ? orange colour, sometimes tending towards red, with a tubular form, 8 cm long and approximately 4 cm wide. During the experiment, we monitored the influence of cutting length on the cutting rooting rate, the main purpose being the analysis of the influence of the three experimental factors (sublaye...

The article contains information on methods of agricultural products quality control, as well as on the model of a robotic complex designed for sorting potatoes. A distinctive feature of the proposed complex is using the methods of active non-destructive thermal control and technology of technical vision in the visible range of the electromagnetic spectrum, as well as in the near (NIR) and middle (MIR) ranges of the infrared spectrum. The complex is based on using a roller conveyor providing rotational and transla...

The article contains information on methods of agricultural products quality control, as well as on the model of a robotic complex designed for sorting potatoes. A distinctive feature of the proposed complex is using the methods of active non-destructive thermal control and technology of technical vision in the visible range of the electromagnetic spectrum, as well as in the near (NIR) and middle (MIR) ranges of the infrared spectrum. The complex is based on using a roller conveyor providing rotational and transla...

Milk and dairy products are foods with significant nutritional influence in maintaining the health of the human condition. Modern medicine recommends for an adult a daily ration of at least 400 ml of milk or the equivalent of its derived forms. Sheep cheese, taken into study, is a product derived from sheep's milk, prepared according to the traditional recipes of hilly and alpine habitats of Banat, areas with tradition in the consumption and processing of sheep's milk. The quality of this basic product in the food...

Milk and dairy products are foods with significant nutritional influence in maintaining the health of the human condition. Modern medicine recommends for an adult a daily ration of at least 400 ml of milk or the equivalent of its derived forms. Sheep cheese, taken into study, is a product derived from sheep's milk, prepared according to the traditional recipes of hilly and alpine habitats of Banat, areas with tradition in the consumption and processing of sheep's milk. The quality of this basic product in the food...

In mayonnaise formulation various types of oil (sunflower, rice and olive oil) were preliminary used. In the production of low fat mayonnaise, the most sensorially acceptable oils were used. Low fat (LF) mayonnaise was produced at different levels of oil with different types (xanthan gum, XG; agar, A; and a combination of XG and A, 1:1) and levels (0.00, 0.20, 0.40, 0.60, 0.80 and 1.00%) of hydrocolloid gums. All samples were compared to traditional full fat (FF) mayonnaise. The most sensorially acceptable oils we...

In mayonnaise formulation various types of oil (sunflower, rice and olive oil) were preliminary used. In the production of low fat mayonnaise, the most sensorially acceptable oils were used. Low fat (LF) mayonnaise was produced at different levels of oil with different types (xanthan gum, XG; agar, A; and a combination of XG and A, 1:1) and levels (0.00, 0.20, 0.40, 0.60, 0.80 and 1.00%) of hydrocolloid gums. All samples were compared to traditional full fat (FF) mayonnaise. The most sensorially acceptable oils we...

Nematodes belonging to the genus Trichinella are zoonotic parasites with a high impact on the animal trade and human health. Foodborne pathogens of Trichinella genus are known as causative agents of human trichinellosis, a disease that is a public health hazard. According to the Commission Regulation (EU) No. 2015/1375 all animals, which are potential carriers of Trichinella spp. larvae and are for human consumption, must be tested according to one of the approved tests. For assessment of developed benzanthrone lu...

Nematodes belonging to the genus Trichinella are zoonotic parasites with a high impact on the animal trade and human health. Foodborne pathogens of Trichinella genus are known as causative agents of human trichinellosis, a disease that is a public health hazard. According to the Commission Regulation (EU) No. 2015/1375 all animals, which are potential carriers of Trichinella spp. larvae and are for human consumption, must be tested according to one of the approved tests. For assessment of developed benzanthrone lu...

In order to make selection methods more efficient and to make improvement works perfect in developing new mustard cultivars at the Agricultural Research Station in Lovrin, we carried out a series of research and biometrical measurements starting from the necessity of better knowing specific variability, quantitative features, productivity features, the way they are passed on hereditarily, and the intensity of the correlations between them. The main objective of our research was the establishing the general and spe...

In order to make selection methods more efficient and to make improvement works perfect in developing new mustard cultivars at the Agricultural Research Station in Lovrin, we carried out a series of research and biometrical measurements starting from the necessity of better knowing specific variability, quantitative features, productivity features, the way they are passed on hereditarily, and the intensity of the correlations between them. The main objective of our research was the establishing the general and spe...

The purpose of the research was to establish the links between the main characters which contributes to the realizationof production on the beans plant. The biological material studied was composed of landraces and varieties of dwarf beans. The landraces come from western Romania. The experimentation was done in field conditions. The experimental data was collected by biometric measurements carried out on representative samples. Statistical analysis was performed by determining the variance and covariance, the cor...

The purpose of the research was to establish the links between the main characters which contributes to the realizationof production on the beans plant. The biological material studied was composed of landraces and varieties of dwarf beans. The landraces come from western Romania. The experimentation was done in field conditions. The experimental data was collected by biometric measurements carried out on representative samples. Statistical analysis was performed by determining the variance and covariance, the cor...

Lately, there has been a special interest in scientific research in viticulture and winemaking regarding the content of different chemical compounds. These have been shown to have a positive impact on consumer health. Preliminary research highlights the benefits of red grapes on health through its antioxidant, antiseptic, anti-inflammatory properties. The study was carried out on the Muscat of Hamburg variety during 2017 in two wine-growing areas: the Research and Development Institute for Viticulture and Wine Pro...

Lately, there has been a special interest in scientific research in viticulture and winemaking regarding the content of different chemical compounds. These have been shown to have a positive impact on consumer health. Preliminary research highlights the benefits of red grapes on health through its antioxidant, antiseptic, anti-inflammatory properties. The study was carried out on the Muscat of Hamburg variety during 2017 in two wine-growing areas: the Research and Development Institute for Viticulture and Wine Pro...

Since ancient times to present, grapes have been important to man, as they were considered to be healthy food due to their phytonutrients: polyphenol antioxidants, vitamins and minerals. The preliminary researches highlight the health-related benefits of red grapes, due to their antioxidant, antiseptic and anti-inflammatory properties. Starting from this information, compared researches have been conducted so as to highlight the evolution of some biological, technological and biochemical properties of three variet...

Since ancient times to present, grapes have been important to man, as they were considered to be healthy food due to their phytonutrients: polyphenol antioxidants, vitamins and minerals. The preliminary researches highlight the health-related benefits of red grapes, due to their antioxidant, antiseptic and anti-inflammatory properties. Starting from this information, compared researches have been conducted so as to highlight the evolution of some biological, technological and biochemical properties of three variet...

Quality of food and beverages is an important aspect that can heavily influence the purchasing behavior of consumers. Wine quality broadly encompasses both extrinsic and intrinsic factors and how these factors are interpreted depends on the level of expertise Wine producers constantly brag about the quality ratings that their wines receive from critics, because a high wine rating ? implying high quality ? translates into increased sales for a wine. But quality wines come in all colors, degrees of sweetness and dry...

Quality of food and beverages is an important aspect that can heavily influence the purchasing behavior of consumers. Wine quality broadly encompasses both extrinsic and intrinsic factors and how these factors are interpreted depends on the level of expertise Wine producers constantly brag about the quality ratings that their wines receive from critics, because a high wine rating ? implying high quality ? translates into increased sales for a wine. But quality wines come in all colors, degrees of sweetness and dry...

Raspberries together with blackberries and strawberries are some of the most appreciated fruits from human diets and sometimes they are recommended by nutritionists in diets or in some digestive disorders. Raspberry plants (Rubus idaeus) products could have an important role in regaining the health balance by peoples who suffer of some anemias or of those who have different cardiovascular affections as there are some intestinal disorders. This is because raspberry products contain important amounts of vitamins, mi...

Raspberries together with blackberries and strawberries are some of the most appreciated fruits from human diets and sometimes they are recommended by nutritionists in diets or in some digestive disorders. Raspberry plants (Rubus idaeus) products could have an important role in regaining the health balance by peoples who suffer of some anemias or of those who have different cardiovascular affections as there are some intestinal disorders. This is because raspberry products contain important amounts of vitamins, mi...

The paper presents the impact of variable environment acidity and low temperature on the stability of biosensor receptor layer component BSA (Bovine Serum Albumin). With the use of UV/Vis spectrophotometer, absorption spectra in range (250-300nm) was taken to study conformational changes of the protein with time after exposition to different factors. The results showed an increase in absorption, associated with the conformational changes of BSA with time. A significant decrease in the absorption intensity was note...

The paper presents the impact of variable environment acidity and low temperature on the stability of biosensor receptor layer component BSA (Bovine Serum Albumin). With the use of UV/Vis spectrophotometer, absorption spectra in range (250-300nm) was taken to study conformational changes of the protein with time after exposition to different factors. The results showed an increase in absorption, associated with the conformational changes of BSA with time. A significant decrease in the absorption intensity was note...

The problem of balanced nutrition in modern society is most relevant and related to the need of finding various methods to solve it, in particular, the introduction of preventive action foods in the diet. It has a positive effect on the body certain functional systems: digestive, cardiovascular, nervous, etc. The products recommended to people suffering from endocrine diseases, such as diabetes and obesity are of particular importance. Products with a lowered glycemic index (GI) are recommended for diabetes. This ...

The problem of balanced nutrition in modern society is most relevant and related to the need of finding various methods to solve it, in particular, the introduction of preventive action foods in the diet. It has a positive effect on the body certain functional systems: digestive, cardiovascular, nervous, etc. The products recommended to people suffering from endocrine diseases, such as diabetes and obesity are of particular importance. Products with a lowered glycemic index (GI) are recommended for diabetes. This ...

Sustainable plant production refers to groups of production practices that lead to high yields but without damaging the environment and biodiversity. Sustainable crop production includes methods of growing food in a responsible manner avoiding application and dependence on chemically produced fertilizers and pesticides. The latter means development of approaches that lead to environmentally mild inputs based on the production-consumption-recycling principle. Biofertilizers are an important tool to achieve sustaina...

Sustainable plant production refers to groups of production practices that lead to high yields but without damaging the environment and biodiversity. Sustainable crop production includes methods of growing food in a responsible manner avoiding application and dependence on chemically produced fertilizers and pesticides. The latter means development of approaches that lead to environmentally mild inputs based on the production-consumption-recycling principle. Biofertilizers are an important tool to achieve sustaina...

In this paper, the principle of constructing an adaptive biomechanical model of the spine is described, which allows modeling damage to the spinal segments, spinal cord and nerve roots, as well as taking into account the perception and tolerability of pain. Adaptability of this model is achieved due to the possibility of introducing individual parameters of a particular segment (geometric dimensions and spatial coordinates of the elements (vertebra, intervertebral disc, nerve roots, spinal canal); modulus of elast...

In this paper, the principle of constructing an adaptive biomechanical model of the spine is described, which allows modeling damage to the spinal segments, spinal cord and nerve roots, as well as taking into account the perception and tolerability of pain. Adaptability of this model is achieved due to the possibility of introducing individual parameters of a particular segment (geometric dimensions and spatial coordinates of the elements (vertebra, intervertebral disc, nerve roots, spinal canal); modulus of elast...

Lingonberry is a traditional northern region wild berry. Lingonberry juice obtained by the cold pressing method has a high nutritional and biological value. It contains sugars, vitamins, minerals and many other healthy components in dissolved and easily digestible forms. There are challenges with filtering and pressing while juice making process. Pectin complexes in raw berries have negative impact in this process. The aim of the research was to study the effect of pectolytic-enzyme treatment on the lingonberry ju...

Lingonberry is a traditional northern region wild berry. Lingonberry juice obtained by the cold pressing method has a high nutritional and biological value. It contains sugars, vitamins, minerals and many other healthy components in dissolved and easily digestible forms. There are challenges with filtering and pressing while juice making process. Pectin complexes in raw berries have negative impact in this process. The aim of the research was to study the effect of pectolytic-enzyme treatment on the lingonberry ju...