Operating enterprises in the restaurant industry must apply various methods, methods, and means of process control, which will ensure the proper quality and safety of culinary products and dishes. ...One of the most critical tasks for a restaurant business manager is producing high-quality culinary products. The quality of food products is the essence of its consumer properties, determined by the satisfaction of the population's need for complete nutrition. The set of properties of culinary products is characterized by nutritional value and organoleptic indicators. However, control services periodically detect violations of sanitary, technological, and other regulatory requirements by enterprises of the restaurant industry, which indicates a possible danger to the health of consumers of culinary products. Under these circumstances, controlling the technological processes of the production of culinary products is relevant for industry institutions, requiring a constant search for the most effective methods and means of quality control. The quality and safety of dishes are the primary criteria for food, so restaurant establishments must daily practice continuous control of the processes of manufacturing products and providing services. This will help ensure the appropriate level of food quality with the analysis of the results of control operations, which can determine ways to improve the quality of products. The technical control system (control objects, control operations, their sequence, technical equipment, modes, methods, means of mechanization, and automation) is developed simultaneously with the design of the manufacturing technology of technical devices by the service of the chief technologist of the enterprise or relevant design and technological organizations with the participation of the technical control department (VTK). All technological processes of making dishes and culinary products in restaurants can be divided into two stages – mechanical culinary and thermal culinary processing. Within the framework of the study of the safety indicators of new products, an essential component is the analytical and experimental examination of minced meat products of the emulsion structure with EAGP regarding the determination of the type and content of food additives for compliance with legislative and regulatory documents on the regulation of food additives in the composition of food products. Analytical studies have established that the EAHP food additive based on sunflower oil – mono- and diacylglycerol fatty acids is a safe additive E471 of GRAS (Generally Regarded As Safe) status, which is used in the composition of food products according to technological necessity without restrictions and quantitatively not are regulated. Therefore, the minced meat semi-finished product of the emulsion structure fully meets the requirements of the current legislation of Ukraine in terms of EAHP content. Thus, studies of the general chemical composition, quality indicators, and safety of chopped meat semi-finished product of emulsion structure, made using the EAHP food additive based on sunflower oil, confirm the compliance of this product with the requirements of the state food control system.
The application of bamboo by-products such as bamboo branches, debris... to recycle and produce bamboo powder plywood, perfectly saves high price natural resource of national wood with artificial ...wooden boards made from bamboo powder that ensures the reservation of natural source of raw materials and protecting of environment. Plywood that is made from bamboo powder has both economic and environmental benefits. It is an urgent task for providing a new version of material for civil engineering in Vietnam. The paper presents a study of the effect of technological parameters on the bending strength of pressed bamboo pulp plywood in order to enhance the mechanical properties of a new domestic product of construction in Vietnam.
A new plus-type second-generation voltage conveyor (VCII+) based first-order mixed-mode (MM) all-pass (AP) filter is proposed in this study. The proposed MM AP filter employs two VCII+s, three ...resistors and one grounded capacitor. It has low input and high output impedances for the current-mode selection while it has low input and low output impedances for the transimpedance-mode selection. The AP filter gain is unity for the current output while it is adjustable for the voltage output via a grounded resistor. However, a single passive component matching condition is needed for the proposed MM AP filter. Complete non-ideal analysis by taking into account all the parasitic resistors and non-ideal gains of the VCII+ is performed. The presented theory is verified through SPICE simulations by using supply voltage of ± 0.9 V and 0.18 μm Taiwan Semiconductor Manufacturing Company complementary metal oxide semiconductor technology parameters.
The influence of the St.3sp, 40 and 85 steel grades chemical composition, temperature of the metal in the tundish ladle, billet cross-sectional dimensions (150 × 150 and 152 × 170 mm), the sulfur ...content in the metal on the speed of withdrawal of the billets from the CCM mold has been investigated. It was established, that the change of the metal temperature in the tundish ladle of the CCM has the greatest effect on the billet withdrawal speed, the change of carbon content in the steel and the billet cross-sectional dimensions influence in less extend, and the sulfur content in the cast steel does not affect at all.
The article describes the methodology for describing the economic indicators of management effectiveness and decision-making under conditions of complex multi-stage productions. The algorithm and the ...forecast model of the need for production resources are presented, that allow providing more complete information on costs and help in pricing for various products, significantly reducing the response time to economic and technological situation changes. Characteristics of technology parameters are linked to a multi-stage production process. As the semi-finished product passes through the processing stages, the values of the technological factors are fixed. Methods for estimating the influence of parameters of complex spatially-distributed systems on costs are presented. Important elements of costs that affect the product value are determined. Detailing the cost elements for the technological operations under study is carried out, the boundaries, where the largest amount of resources is spent, are determined.
The article describes the methodology for describing the economic indicators of management effectiveness and decision-making under conditions of complex multi-stage productions. The algorithm and the ...forecast model of the need for production resources are presented, that allow providing more complete information on costs and help in pricing for various products, significantly reducing the response time to economic and technological situation changes. Characteristics of technology parameters are linked to a multi-stage production process. As the semi-finished product passes through the processing stages, the values of the technological factors are fixed. Methods for estimating the influence of parameters of complex spatially-distributed systems on costs are presented. Important elements of costs that affect the product value are determined. Detailing the cost elements for the technological operations under study is carried out, the boundaries, where the largest amount of resources is spent, are determined.
This paper presents a new approach for third order quadrature oscillator (QO) realisation. It uses a high pass filter and differentiator connected in a feedback loop. A differential voltage current ...conveyor transconductance amplifier (DVCCTA) is employed to verify the proposed approach. Two circuit topologies of QO have been proposed. Both the topologies utilise two DVCCTA and three grounded capacitors. In addition, the first topology employs a single resistor while the second makes use of two resistors. The circuits exhibit orthogonal control on frequency and condition of oscillation. The quadrature current outputs are available at high output impedance and voltage outputs are also present. The theoretical proposition has been verified through SPICE simulations using 0.25 μm Taiwan semiconductor manufacturing company (TSMC) complementary metal oxide semiconductor (CMOS) technology parameters. Experimental results are also included which corroborate the theoretical propositions and simulated results.
The power generation system will play a decisive role in realizing China’s low carbon development goals. When identifying the optimized power generation structure to meet a set of given low carbon ...goals, the technology parameters are an important determinant of the results. In previous studies, most models exogenously set the technologies’ cost changes, which usually bring a great bias. This article establishes an endogenous (for solar photovoltaic and wind power generation technology costs) optimization model of China’s power sector and simulated the sector from 2014 to 2040. Two scenarios were built to investigate the optimized performance of the power sector: the Business as Usual scenario (BAU) and the Intended National Determined Contribution scenario (NDC). In addition, this paper compares the differences in the optimization results under the two methods for treatment of technology change in the model, exogenous and endogenous. In the BAU scenario, emerging technologies account for 40.7% of the total installed capacity in 2040. Due to the variation of the costs in the exogenous setting, the solar power and other emerging technologies develop slowly and the optimization results are significantly different from that of the endogenous setting. In the NDC scenario, the proportion of emerging technologies increases more, accounting for 43.7% of the total installed capacity, of which wind power and solar power account for 12.2% and 11.5% respectively, and the total CO2 emissions peak around 2033. We conclude from the comparison that, for the NDC scenarios, although there are some differences in investment cost in the first few years, different settings for technology change in the model don’t significantly affect the renewable energy demand and final policy decisions.
This paper studied the configuration of spinning technology of PTT (polytrimethylene terephthalate)/PET (polyethylene terephthalate) bicomponent fiber via measurements obtained from the elasticity ...testing of fabrics made of them. The effects of four main spinning parameters on the elasticity of two series, named Z and Q, of interwoven fabrics were explained, including different ways of binding, intrinsic viscosity differences, and the percentage contents of PTT and the temperature of the hot plate. The experimental results indicated that the elongation ratios of the fabrics, which were made of PTT/PET bicomponent filaments spun by the parallel bound method, with larger differences in the intrinsic viscosity of the two ingredients and a higher temperature of the hot plate, were much larger than that of its corresponding counterparts. The elastic modulus ratio (m) and the PTT contents exhibited a cross-impact on crimp curves of PTT/PET bicomponent filament fabrics. The elongation ratios of fabrics made of PTT/PET bicomponent filaments would augment effectively as the hot plate temperature increased within a temperature range under the same posttreatment.
Sphere-shape nickel nanopowders were successfully prepared at high rate (up to 1.3 g/min) by anodic arc discharge plasma method. The morphology, crystalline structure, particle size and specific ...surface area of the samples were characterized via X-ray diffraction (XRD), transmission electron microscopy (TEM) and the corresponding selected area electron diffraction (SAED), and Brunauer–Emmett–Teller (BET) surface area analysis. The influences of the technology parameters on the yield rate and particle size of Ni nanopowders were studied, and the referential process parameters were obtained. The experimental results indicate that the crystal structure of the samples is FCC structure as same as that of the bulk materials. The specific surface area is 14.23 m
2/g, with the particle size distribution ranging from 20 to 70 nm, the average particle size about 47 nm obtained from TEM and confirmed from XRD and BET results. This technique is a convenient and effective method to prepare high quality nanopowders with uniform size, higher purity, narrow size distribution and spherical shape. The yield rate and particle size increase with the increase of the arc current or gas pressure when other factors are fixed.
PDF
