Consume Power Torque and Conveyor energy efficiency for a Horizontal Screw Conveyor with three different Screw Flight –A Comparison

Material handling cost plays crucial role in any manufacturing industries. A judicious selection of material handling system or equipment can only help to enhance productivity and thereby increasing profitability of an industry. Extensive studies require for establishing cost effective solution related to selection of right handling system. The objective of work is to find out running cost associated with screw type horizontal conveyor through experimental investigation of consume power and associated torque against three different types of screw flight(Continuous, Ribbon and Cut Flight) of same nominal diameter and pitch while keeping conveying distance as constant with same material at different screw speed. The experiment was conducted against two different trough heights for finding out mass flow rate. The consume power, torque and conveying energy efficiency calculated with three different screw flight and the results were compared for analysis. Hence on the basis of experimental results, conclusion was drawn. Present work confirming experimentally that the consume power at conveyor shaft and torque in case of ribbon flight was found to be 10 percent less than that of the continuous screw type of same nominal diameter, pitch and helix angle with same range of speed against single conveying material type in case of both the trough height(112 mm and 180 mm), which was in line with the statement made earlier[6]. In addition to that a trial has been made to establish a comparison in terms of consume power in between ribbon and cut flight against a constant trough height, which was not reported earlier. This comparative study may be helpful for taking decision in selecting material handling equipment type for specific application area. Now a day overall energy consumption becomes serious concern for different industries.

Overview of Exhibition Work of the First Jinan International Biennale

"Harmony Power: The First Jinan International Biennale" was officially presented on December 12, 2020. The rich and complex varieties of exhibition works are unique in art exhibitions in recent years in Shandong province. This paper summarizes the characteristics of biennale exhibition with summary of the experience of biennale exhibition, hoping to bring some enlightenment for the industry colleagues through the combination of the size of the work, weight, equipment type, quantity, the number of participants, the length of lines in the exhibition, the number of types of construction and other technical parameters based on the biennial exhibition in Shandong Art Museum.

Pengembangan Radio Komunikasi VHF A/G Type Icom-A210

The VHF communication radio type IC - A210 is an air to ground communication radio used by the Lion Air Goup airline in carrying out its operations, this device's performance is reduced due to a change in the structure of one of the functions of the transmission cable. To improve the performance of these devices, a remote amplifier is made, so that communication can run normally and problems can be resolved. Remote amplifier is additional equipment intended for VHF communication equipment type IC - A210, this equipment consists of a Mic added with PTT, two amplifiers where one amplifier functions as an information signal amplifier coming from the FOO (Flight Operations Officer) officer on land via the mic then sent to the VHF communication equipment to be transmitted to the aircraft and the other amplifier functions as an information signal amplifier from the VHF communication equipment after receiving a reply from the pilot to be heard by the ground FOO officer. The work of the two amplifiers is alternately arranged using relay components that are regulated from the PTT by the FOO on the ground. The way to operate this Remote Amplifier equipment is the same as how to operate the VHF communication equipment type IC - A210 so that its use does not require special knowledge, so that the officer seems to be using VHF communication equipment directly.

Diagnosis of COVID-19 Pneumonia Based on Graph Convolutional Network

A three-dimensional (3D) deep learning method is proposed, which enables the rapid diagnosis of coronavirus disease 2019 (COVID-19) and thus significantly reduces the burden on radiologists and physicians. Inspired by the fact that the current chest computed tomography (CT) datasets are diversified in equipment types, we propose a COVID-19 graph in a graph convolutional network (GCN) to incorporate multiple datasets that differentiate the COVID-19 infected cases from normal controls. Specifically, we first apply a 3D convolutional neural network (3D-CNN) to extract image features from the initial 3D-CT images. In this part, a transfer learning method is proposed to improve the performance, which uses the task of predicting equipment type to initialize the parameters of the 3D-CNN structure. Second, we design a COVID-19 graph in GCN based on the extracted features. The graph divides all samples into several clusters, and samples with the same equipment type compose a cluster. Then we establish edge connections between samples in the same cluster. To compute accurate edge weights, we propose to combine the correlation distance of the extracted features and the score differences of subjects from the 3D-CNN structure. Lastly, by inputting the COVID-19 graph into GCN, we obtain the final diagnosis results. In experiments, the dataset contains 399 COVID-19 infected cases, and 400 normal controls from six equipment types. Experimental results show that the accuracy, sensitivity, and specificity of our method reach 98.5%, 99.9%, and 97%, respectively.

Fly ash morphology and surface modification via mechanical activation: A review

Fly ash (FA) F low reactivity, slow hydration reaction and low early strength, restricted its industrial usage to less than 25 wt %. Ash properties were modified by mechanical activation to achieve higher added value product. The activation depends on the equipment type and their particle size range of milling. This paper reviewed the milling equipment effect on particle size, surface properties, and chemical compositions of activated ash. Increasing in the surface area, pozzolana activity and the reduction of crystalline dense layers of fly ash F, leading to microstructure and structural variations which raised the ash industrial applications.

Assessing Potential Impacts to Waterways From Small Volume Releases Originating From Facilities or Equipment

The pipeline industry strives for continuous improvement and reaching zero incidents. The risks associated with below grade pipelines are typically assessed in detail as part of operators’ pipeline integrity management program. However, the level of risk associated with above grade facilities and equipment is often not investigated to the same level. As part of an effort, with an anonymous pipeline operator, to refine the calculated risks associated with these facilities and valve sites, a focus was made on enhancing the consequence calculations with more accurate site-specific information. An approach was developed to assess whether smaller volume releases from these locations may impact nearby waterways following a release. The operator identified 150 sites throughout North America where releases had the potential to contaminate a waterbody. In order to confirm/disprove this potential impact to water, hypothetical releases of multiple hydrocarbon products were simulated using oil spill modeling tools to assess the potential overland and downstream transport and fates of the released products. Hypothetical release scenarios were simulated until all of the modeled oil had been released and had either adhered to the land surface, filled a depression in the land surface, and/or evaporated to the atmosphere; or when oil was predicted to enter a perennial waterbody (stream or lake). The goal was to assess the potential for each release to reach a waterbody. A single release was simulated for each site based on a historical maximum volume for a release associated with the specific equipment type (e.g. valves) that could be released over a 24-hour period. Releases were simulated using conditions selected to produce reasonable, conservative results to maximize the potential for the largest volume of oil to enter a waterbody. These conditions were based on the spring season, where rivers and streams would be under some of the highest flow conditions, intermittent streams and waterbodies would contain water feeding larger water bodies, cool air temperatures would reduce evaporative losses, and no snow cover maximize overland transport. This screening level analysis allowed for identification of each location’s potential to reach a nearby waterbody under the conservative set of conditions and assumptions. By eliminating sites where oil would not reach a waterbody, the operator was able to focus efforts on the highest consequence areas in order to complete more detailed field-level analysis. In regard to spill modeling, more detailed analyses could be conducted in the future to predict the range of possible outcomes from other types of releases and using more site-specific and season-specific data. As an example, slower releases/leak rates, enhanced evaporative losses, a range of environmental conditions, and/or losses to infiltration could be assessed to bound the range of potential impacts.