Feeding Device Research Articles

Oral feeding challenges of infants of diabetic mothers.

The presence of diabetes before or during pregnancy can increase perinatal mortality and morbidities. It is well known an infant of a diabetic mother (IDM) may experience complications such as macrosomia, hypoglycemia, respiratory distress syndrome, cardiac anomalies, and other abnormalities of organogenesis. Medical providers including physicians, nurses, and speech therapists have experienced challenges with helping IDMs orally feed. Challenges with oral feeding can lead to prolonged hospital stays and placement of supplemental feeding devices. The etiology of an IDM's oral feeding delays is not well understood and does not necessarily affect all infants. This descriptive review explores what is known about potential contributing factors to feeding difficulty in IDMs, including differences in infant behavior and swallowing mechanics. Some IDMs are unable to maintain active alert states and have decreased autonomic regulation and motor control. Studies of sucking and swallowing demonstrate reduced sucking pressure, fewer sucking bursts, and slowing of esophageal sphincter function. The increasing prevalence of diabetes during pregnancy makes further investigations into the characteristics and trajectories of state, behavior, and oral feeding of IDMs imperative.

Design and Test of Automatic Feeding Device for Shed Pole of Small-Arched Insertion Machine

Design and Test of Automatic Feeding Device for Shed Pole of Small-Arched Insertion Machine

Research on multi-velocity measurement method of solid particles based on interdigital electrostatic sensor

Abstract In gas-solid two-phase flow, the velocities of solid particles will show different distributions as the flow pattern changes, and it is a challenging task to achieve the measurement of different velocity parameters in the flow field. To obtain the velocity information of solid particles in the flow field, a novel method to achieve multi-velocity measurement of solid particles is proposed by using the spatial filtering characteristics of interdigital electrostatic sensor with variational mode decomposition (VMD). Firstly, a three-dimensional model of the interdigital electrostatic sensor is established using COMSOL simulation software. Based on its spatial dynamic sensitivity, a theoretical analysis of its spatial filtering characteristics is conducted to obtain a mathematical relationship for velocity measurement. Subsequently, the VMD decomposition method is applied to an experiment involving charged wires, with the experimental results verifying the effectiveness of VMD in achieving multi-scale decomposition of electrostatic signals. Finally, the proposed measurement method is validated on a gravity feeding device and a pneumatic conveying system. The experimental results demonstrate that the method exhibits good feasibility.

Research on Precision Control and Optimization of Automatic Feeding Device of Stamping Die

This paper discusses the precision control and optimization method of automatic feeding device of stamping die. By analyzing the accuracy of the existing feeding device, the main influencing factors are identified. To solve these problems, a comprehensive scheme of structural design optimization, control system improvement and precision test method optimization is proposed. The specific research contents include the improvement of the mechanical structure of the feeding device, the application of advanced algorithms in the control system, and the improvement of precision testing equipment and methods. Through experimental verification, the optimized feeding device has been significantly improved in precision and efficiency, effectively reducing the scrap rate in production, improving the overall production efficiency and product quality, and providing important technical support for precision manufacturing in industrial production.

Nutritional Issues in Children with Dysphagia.

(1) Background: Pediatric dysphagia presents significant nutritional challenges, often impacting growth and development due to reduced oral intake, increased nutritional needs, and gastrointestinal complications; (2) Methods: This prospective quasi-experimental study assessed 117 children under 14 years old (20 patients were under 1 year old, 80 were aged 1-7 years, and 17 were older than 7 years), diagnosed with swallowing disorders, to analyze their caloric, macro-, and micronutrient intake and identify potential deficiencies. The severity of dysphagia was established using functional oral intake scales, and dietary records were reviewed over a 3-day period; (3) Results: The study revealed that 39.8% of participants did not meet their total energy expenditure (TEE), highlighting a high prevalence of malnutrition among these children. Furthermore, patients using feeding devices exhibited a significantly lower caloric intake, and over half required significantly modified food textures. After individualized speech therapy and nutritional rehabilitation, participants showed significant improvements in caloric intake, with their energy coverage increasing from 958% to 1198% of the daily requirement. Rehabilitation also improved tolerance to a broader range of food textures; (4) Conclusions: This research underscores the importance of multidisciplinary, individualized nutritional strategies to address the specific challenges of pediatric dysphagia, emphasizing the role of enteral nutrition and therapeutic interventions in improving the quality of life and nutritional outcomes of these children. Further studies are recommended to assess the long-term impact of such strategies.

Design and Test of Automatic Feeding Device for Substrate Filling

An automatic feeding device for substrate filling was designed to address the challenges of difficult feeding and low efficiency in the citrus seedling pot filling and transferring machine. The device comprises a framework, tracks, overturning frame, drive system, etc. In order to ensure optimal performance, the frame’s turning angle was set at a minimum of 110° and the angle between the frame’s horizontal plane and slope was determined to be 120°. Following optimization, the number and intensity of sudden changes in velocity, angular velocity, and thrust were reduced, thereby prolonging the device’s service life. The prototype test demonstrated that the device has an average feeding time of 9.86 s, is capable of raising 0.14 m3 of substrate in a single cycle, and has a handcart turning angle of 111°. Furthermore, no residual substrate remained in the handcart, and the handcart fixing mechanism operated correctly. The torque measurement results of the motor output shaft were found to be consistent with the simulation results in ADAMS, with a maximum force difference of only 298 N. The simulation was found to be accurate, with an error rate of only 3.67%. This model can be utilized as a dependable reference for the optimization of the design of the automatic feeding device.

Design and development of a not actively driven modular device for parts feeding and sorting

The current paper focuses on developing and designing a not actively driven module for material handling operations in the field of intra-logistic. This device, belonging to the class of systems known as smart surfaces, is planned to be assembled with others to create manipulative arrays. As a novel feature, the reported concept aims to generate the frictional forces required for surface operation avoiding motors and with a simplified design. The article not only presents the design of the concept, but also the analytic models used to describe its operation and handling forces. In addition, a characterization of the fundamental parameters and the validation of the mentioned analytic descriptions together with the functioning itself are reported. As result, the analysis and the measurements presented show a real solution for a not actively driven concept, along with a methodology to characterize it and predict its handling capabilities. Specifically, the validation test proved that the model is able to represent the behavior of the friction forces with relative errors mainly in the range of 10% or lower.

Numerical simulation and experimental study on ultrafine powder spiral transportation degassing

Aiming at the problems of ultrafine powders of high air content and environmental pollution, low measurement accuracy and low efficiency in packaging and filling process, the research on degassing spiral powder transportation was carried out. Discrete element method and physical experiment method were used to simulate and test the mass flow rate, material density and dust concentration of packaging environment of equidistant spiral and degassing (variable pitch) spiral powder transportation, and the transportation effects of equidistant spiral and degassing spiral were analyzed.Simulation and test results show that the average mass flow rate of the degassing screw is 0.639 kg s−1 with the same screw outer diameter, inner shaft diameter, length and rotational speed, and the flow rate fluctuates with the percentage of fluctuation in the range of 7.19% − 10.02%. The degassing spiral increases the mass flow rate of the feeding device and reduces the flow fluctuation,and the maximum densification of the material was increased by about 7.25%. With the increase of rotational speed, the environmental dust lifting degree of both spiral filling processes increased, but under the same rotational speed, the dust lifting degree of the outlet of the degassing spiral was significantly reduced compared to the isometric spiral, and the rotational speed was increased from 80 to 120 r min−1, the maximum dust lifting degree of the isometric spiral was 37.88%, and the average dust lifting degree of the maximum was 25.59%, and the maximum dust lifting degree of the degassing spiral was 21.59%. The maximum dust lifting degree of the degassing spiral is 21.18%, and the maximum increase of the average dust lifting degree is 14.49%. Degassing spiral device effectively realises efficient and clean packaging of ultra-fine powder.

Feeding behaviour related to different feeding devices.

Slow feeding devices (SFDs) are useful tools in order to improve the horse well-being and to reduce wastage, but their use may result in unnatural posture during feeding and frustration behaviours. Moreover, it may be important to evaluate the laterality during feeding. The aim of the study was to investigate ponies' feeding behaviour (i.e., lateralisation, frustration, postural eating style) with different hay feeding methods: on the ground (G), a fully filled hay net (HF), a partially filled hay net (HL), and a slow feeder hay box (HB). Nine ponies of two different breed types (Shetland and Welsh/Cob) were evaluated. Video recordings were obtained and then behavioural analysis was conducted. Data were analysed statistically using k-means cluster analysis, repeated measurement mixed model procedure, principal component analysis (PCA) and Pearson's correlation coefficient. Head tilting was more often performed during feeding from HF and HL compared to G and HB. Forelimb forward, referring to the position that ponies assumed during feeding, was performed less frequently with the hay nets. Ponies, in particular Welsh/Cobs, tended to be more left-lateralized and performed more backward ears when feeding from the hay nets. Blink rate was observed to be greater when ponies were fed from G. No head pushing, striking with forelimb and pawing while feeding was seen. Animals fed from HF tended to eat from the top of the hay net and consequently showed an arched neck; while HL and HB showed for elongated neck an intermediate pattern between G and HF. From our results, HB seemed to be a useful compromise between natural feeding on the ground and the use of hay nets.

Key Technology Research and Equipment Development of Automatic Spool Feeding Device

To solve the problems of high labour intensity and low efficiency of artificial spool feeding, an automatic spool feeding device is developed. SolidWorks is used for overall structural scheme design and determination of design parameters. The kinematic equation of the chain conveyor line is established, a mathematical model is solved with MATLAB, and sprocket, and chain parameters are selected. The clamping mechanism and turnover mechanism are designed, theoretical analysis of the key structure is completed. Dynamic simulation of the chain conveyor line is carried out by ADAMS, and preliminary operational stability is determined by combining motion curves. The test prototype is developed for feeding tests and measurement of the operating parameters. The test results show that the efficiency of machine feeding is 13% higher than that of manual feeding, the average feeding time is 43% lower, the halt waiting time is 43% lower, and the operating parameters are by the theoretical design and the work is reliable. The research results can provide a reference for similar spool-feeding devices.

Arduino-based Automatic Fish Feeding Device Prototype

Consuming fish food is an important part of the process of growing and maintaining fish. In general, fish food is given by conventionally throwing it by hand. However, this is not done at the same time every day. Based on the problems above, the researchers made a prototype of an Arduino-based automatic fish feeding device. The aim of this research is to determine the effectiveness of the automatic fish feeder prototype. In the prototype that the researchers made using several main components such as Arduino Uno as the system or brain of this prototype, servo motor, 20 x 4 LCD, buttons, Real Time Clock (RTC), and several jumper cables. The effectiveness of this tool can be seen from the test results, where the automatic fish feeder prototype succeeded in providing fish food according to a predetermined schedule.

Automatic Pet Feeder Using Assistant

Nowadays most of us fascinated to have pets at their home. But these pets have to be taken care properly. Their feeding on time is an important task as they become part of our family. But in our busy schedule we fail to pay attention on our pet thus it doesn’t get proper food on time. This paper addresses the above issue by introducing an Automatic Pet Feeding System to ensure feeding pet on frequent interval of time. In our project we used two methods to feed the Pet, one is by Camera and another by using Google Assistant. When the DC servo motor runs, the motor rotates the propeller which is in the feeding device, which drops down pet food through the pipe into perforated feeding bowl. The water pump will be kept in a tank containing water. When the water pump runs, the water is pumped into the water bowl of pet. The user in order to feed their pet have to give a command on their Smart Phones such as “Okay Google”, “Feed my Pet”, with the help of this command the machine will do its following work. The user can also specify the time to feed their pet on schedule using Google Assistant

A single incidental dark pulse during daytime attenuated food anticipatory behavior

ABSTRACT Using an open-source operant feeding device (FED3), we measured food-seeking nose poking behavior in mice. When the mice were exposed to 4 h restricted feeding at night, all mice exhibited robust food anticipatory nose poking starting ~4 h before scheduled mealtime. When the light-dark cycle was advanced by 6 h, mice exhibited two distinct bouts of anticipatory poking, one corresponding to actual mealtime which continued at the same time of day, and one corresponding to predicted mealtime which shifted parallel with the light-dark cycle. Likewise, two similar bouts of food-seeking behavior appeared when the light-dark cycle was delayed for 9 h. These data suggest that food anticipatory behavior is encoded to a circadian oscillator that entrains to the light-dark cycle. Two weeks after advancing the light-dark cycle, mice incidentally received a 3.5 h dark pulse in the middle of the day. This single dark pulse had a negligible effect on running wheel behavior but caused a temporary attenuation of both food anticipatory poking and pellet intake. These results suggest that the circadian oscillator controlling food anticipatory poking is sensitive to light disruption and that proper food anticipation is critical for sufficient food intake during temporally restricted feeding.

Design and test of an efficient seedling pick-up device with a combination of air jet ejection and mechanical action

Low degree of transplanting automation will affect production efficiency and planting quality in vegetable cultivation. A new seedling pick-up device was designed and constructed to reduce direct grasping damages to seedlings and improve transplanting efficiency. The pick-up device consists of an air jet loosening device, a flexible pick-up manipulator, a parallel feeding device, and a multi-axis motion control system. Its working principle is to use air jet ejection to assist in loosening of seedling roots from the tray cells, grasp their stems for extracting with the pick-up manipulator, and finally transfer them to the delivery device for feeding into the planting device as needed. The mechanical structure and working parameters of each component were designed, and the control system was constructed according to the working requirements of ejecting, extracting, transferring, and discharging operations. A prototype of the new pick-up device was constructed, and its performance evaluation was conducted using an orthogonal experimental design using cucumber, pepper and caluiflower as test objects. The results showed that the test object, the root lump's moisture content and the loosening way (either as a whole or individual loosening of seedlings) had significant effects on the success ratio in picking up seedlings. Overall, the success in picking up seedlings from the cell was found to be influenced by horticultural and mechanical factors. Under the optimal level group, the maximum success ratio for automatic picking up seedlings was up to 94.49% for pepper while that of cucumber and cauliflower recorded 90.75% and 92.62%, respectively. The seedling pick-up performance was satisfactory for efficient transplanting requirements.

Bird feeding devices exclude unwelcome visitors. More-than-humans shaping the architecture and technology of birdfeeders in twentieth-century Finland

In this article, we investigate the evolution of the birdfeeder and analyze it as a multispecies technology, a technological artefact that has co-evolved between multispecies interactions of humans, the target species of the feeding, and unwanted visitors. We use close reading as a method to examine pictures, design descriptions, photos and text sources published in Finnish magazines and newspapers from the late nineteenth century, when birdfeeders were first discussed, until the late twentieth century, with the aim of analyzing how birdfeeder designs and models have changed in relation to various (and especially unwanted) visitor species. Birdfeeders are visited not only by species that humans want to feed but also by several unwanted visitors, such as birds, mammals, bacteria and the weather. Being inspired by posthumanism and Science and Technology Studies (STS), we ask what the role of unwanted visitors has been as co-designers of technological artefacts, here the birdfeeder. Our article discusses the broader subject of how people welcome or exclude other beings from shared environments. We argue that it is vital for environmental humanities scholars to study artefacts and technology and vice versa, for design studies and STS scholars to examine non-humans. We hope to encourage other researchers to ponder how animals, and unwanted users in general, participate in designing technology and artefacts.

Study the Flow Capacity of Cylindrical Pellets in Hopper with Unloading Paddle Using DEM

The hopper is an important piece of basic equipment used for storing and transporting materials in the agricultural, grain, chemical engineering, coal mine and pharmaceutical industries. The discharging performance of hoppers is mainly affected by material properties and hopper structure. In this work, the flow capacity of cylindrical pellets in the hopper with the unloading paddle is studied. A series of numerical simulation analyses with the aid of the discrete element method (DEM) platform are carried out. Then, the discharging process is illustrated, and the flow capacity of pellets in the hopper is analyzed by the mass flow index (MFI), the dynamic discharging angle (DDA) formed in the discharging process and porosity among pellets. Furthermore, the effect of parameters such as hopper half angle, rotation speed of the unloading paddle and outlet diameter of the hopper is investigated. The results show that MFI increases with an increase in hopper half angle or outlet diameter and a decrease in rotation speed. Meanwhile, DDA and porosity decrease with the increase in the hopper half angle or outlet diameter and the decrease in the rotation speed. Finally, the MFI ~0.24 is identified as the criterion to distinguish the mass flow from the funnel flow for the hopper with an unloading paddle, and the optimization results are decided as follows: hopper half angle greater than 60°, outlet diameter greater than 60 mm and rotation speed between 45 rpm and 60 rpm. These results should be useful for providing a theoretical reference for the optimization design of feeding devices for swine feeders.

Review on Factors Affecting Efficiency of Shell and Tube Heat Exchanger

Heat exchanger is one amongst promising thermal device in which heat transfer takes place between hot fluid and cold fluid. Among various classifications of warmth exchangers, the main focus was shown by researchers on indirect contact type compact heat exchangers. Among them the shell and tube device belongs to fluid to fluid type heat transfer device. Main applications of shell and tube device feed device in process industries, refineries, chemical plants and power plants. Usually the analysis of shell and tube heat exchangers are divided into two parts namely shell side and tube side analysis. Shell side analysis is easy and doesn't involve much modification. Whereas the tube side analysis is complex and it's done by varying baffle design and elevation with regard to arrangements of tubes. The most disadvantage of shell and tube device is pressure drop which occur at the end of tubes. To overcome this problem, drilled cylindrical copper block has been introduced to switch the tube part through which the new fluid flows and therefore the cold fluid is circulated through the shell. With this design modification, the effectiveness, mass rate, overall heat transfer co efficient are simulated and analysed.

Sistem Pemberian Pakan Ikan Otomatis Berbasis IOT

Pond fish farming requires regular care and feeding of the fish. Fish feeding is usually done manually by spreading the food over the entire surface of the pond. Spreading feed manually will take a long time to feed and drain energy. It is not uncommon for owners to sometimes forget to feed the fish at the specified time. Based on these problems, the NodeMCU ESP8266-based automatic fish feeding system with blynk time setting is able to assist fish farmers in the process of feeding automatically according to the desired time. This automatic fish feeding device can act as a timer for fish feeding and the amount of food released per time is determined automatically in the Arduino ide program. This automatic fish feed has a time input which is then processed by the NodeMCU ESP8266 as a microcontroller and an internet connection (Wifi) connected to the blynk. This automatic fish feed is very useful for consumers in terms of feeding fish regularly and regularly, and most importantly to avoid forgetting or even overfeeding.

Toward Translational Impact of Low-Glucose Strategies on Red Blood Cell Storage Optimization.

Transfusion of stored red blood cells (RBCs) to patients is a critical component of human healthcare. Following purification from whole blood, RBCs are stored in one of many media known as additive solutions for up to 42 days. However, during the storage period, the RBCs undergo adverse chemical and physical changes that are often collectively known as the RBC storage lesion. Storage of RBCs in additive solutions modified to contain physiological levels of glucose, as opposed to hyperglycemic levels currently used in most cases, reduces certain markers of the storage lesion, although intermittent doses of glucose are required to maintain normoglycemic conditions. Here, we describe an electrically actuated valving system to dispense small volumes of glucose into 100 mL PVC storage bags containing packed RBCs from human donors. The RBCs were stored in a conventional additive solution (AS-1) or a normoglycemic version of AS-1 (AS-1N) and common markers of stored RBC health were measured at multiple time points throughout storage. The automated feeding device delivered precise and predictable volumes of concentrated glucose to maintain physiological glucose levels for up to 37 days. Hemolysis, lactate accumulation, and pH values of RBCs stored in AS-1N were statistically equivalent to values measured in AS-1, while significant reductions in osmotic fragility and intracellular sorbitol levels were measured in AS-1N. The reduction of osmotic fragility and oxidative stress markers in a closed system may lead to improved transfusion outcomes for an important procedure affecting millions of people each year.

Perancangan Pembangkit Listrik Tenaga Surya Dengan Sudut Panel Optimal Sebagai Sumber Energi Listrik Pada Area Keramba Jaring Apung Padang Cermin

Indonesia's seas hold abundant natural resources and are a highly desirable location for marine fish farming, especially among fishermen. One of the most common methods used in this activity is the use of floating net cages. However, an obstacle faced by fishermen is limited access to electrical energy at the cage sites which are generally far from settlements. This research aims to design a Solar Power Plant (PLTS) in order to meet the electrical energy needs of fishermen in the floating net cage area. The focus of the research is on the design and assembly of the PLTS system with an emphasis on setting the optimal panel angle. The panel angle is calculated based on the amount of radiation received by the inclined plane surface, utilizing geographic location data obtained from NASA SSE. The results show that the proposed solar power plant design can meet the electrical energy demand in the floating net cage area. In practical implementation, the daily energy requirement of 481 Wh for lighting and automatic feeding devices can be met by using a 100 Wp solar PV system, with a battery storage capacity of 46 Ah. Furthermore, the determination of the optimal tilt angle, based on radiation and geographical factors at the location of floating net cages, is about 6 degrees, with a radiation value of 57.38848 kWh per year at the location of Padang Cermin, Durian District.