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Topic Review
Bullwhip Effect in Supply Chain
The bullwhip effect results from inefficiencies in the supply chain; in perishable products, the inefficiencies are quality in the supply chain and product waste. Update the demand, the level of deterioration of the product, and the number of intermediaries is the causes of the bullwhip effect most investigated.
  • 455
  • 05 Aug 2021
Topic Review
Children with Attention-Deficit/Hyperactivity Disorder
Children with Attention-Deficit/Hyperactivity Disorder (ADHD) face a range of learning difficulties in the school environment, thus several strategies have been developed to enhance or optimise their performance in school. One possible way is to actively enable appropriate restlessness using dynamic seats.
  • 320
  • 01 Jun 2022
Topic Review
CMS Magnetic System Model
Compact Muon Solenoid (CMS) detector and the methodology of modelling the heterogeneous CMS magnetic system for describing the magnetic flux of the CMS superconducting solenoid enclosed in a steel flux-return yoke. 
  • 1.1K
  • 15 Feb 2022
Topic Review
Conceptualization and Implementation of Proposed On-Water Rowing System
In competitive rowing, the finish time of a typical 2000 m race is governed by many factors during the course. These influencing factors are broadly known as rowing kinetics. They refer to biomechanical parameters concerned with the movement of the athlete’s body and the reaction of the boat equipment (oars, seat) to such input. The rapid advancements in multi-sensor technologies and data processing techniques opened widely the road for the development of specialized monitoring systems to fulfill the requirements for numerous applications.
  • 202
  • 14 Jul 2023
Topic Review
Density Meter
A density meter, also known as a densimeter, is a device that measures the density. Density is usually abbreviated as either [math]\displaystyle{ \rho }[/math] or [math]\displaystyle{ D }[/math]. Typically, density either has the units of [math]\displaystyle{ kg/m^3 }[/math] or [math]\displaystyle{ lb/ft^3 }[/math]. The most basic principle of how density is calculated is by the formula: Where: Many density meters can measure both the wet portion and the dry portion of a sample. The wet portion comprises the density from all liquids present in the sample. The dry solids comprise solely of the density of the solids present in the sample. A density meter does not measure the specific gravity of a sample directly. However, the specific gravity can be inferred from a density meter. The specific gravity is defined as the density of a sample compared to the density of a reference. The reference density is typically of that of water. The specific gravity is found by the following equation: Where: Density meters come in many varieties. Different types include: nuclear, coriolis, ultrasound, microwave, and gravitic. Each type measures the density differently. Each type has its advantages and drawbacks. Density meters have many applications in various parts of various industries. Density meters are used to measure slurries, sludges, and other liquids that flow through the pipeline. Industries such as mining, dredging, wastewater treatment, paper, oil, and gas all have uses for density meters at various points during their respective processes.
  • 753
  • 25 Oct 2022
Topic Review
Detection of Anomalies Using Acoustic Emission When Welding
Welding inspection is a critical process that can be severely time-consuming, resulting in productivity delays, especially when destructive or invasive processes are required. With non-destructive approaches, the actual service part can be inspected in both a speedy and non-invasive manner. A multi-spectral approach is used to give more confidence and information related to the anomaly of interest. This system is very portable and essentially could be used in most joining setup situations.
  • 144
  • 23 Aug 2023
Topic Review
Dual-Frequency Solid-State Lasers for Synthetic-Wave Absolute-Distance Interferometry
Frequency-difference-stabilized dual-frequency solid-state lasers with tunable and large frequency difference have become an ideal light source for the high-accuracy absolute-distance interferometric system due to their stable multistage synthetic wavelengths.
  • 275
  • 06 Apr 2023
Topic Review
Echelle Grating Spectroscopic Technology Application
Echelle grating provides high spectral resolving power and diffraction efficiency in a broadband wavelength range by the Littrow mode. The spectrometer with the cross-dispersed echelle scheme has seen remarkable growth in recent decades. Rather than the conventional approach with common blazed grating, the cross-dispersed echelle scheme achieves the two-dimensional spatial distribution of the spectrum by one exposure without scanning in the broadband spectral range. It is the fastest and most sensitive spectroscopic technology as of now, and it has been extensively applied in commercial and astronomical spectrometers.
  • 530
  • 10 Nov 2022
Topic Review
Effect of Sanitizing Treatments on Respirator Filtration Performance
Disposable respirator masks with an accepted performance rating are seriously compromised from an exposure to saturated alcoholic vapours, can tolerate a one-off spray treatment with an alcoholic solution and retain their attested protection under the influence of alcoholic vapours from the use of hand sanitizer or spray sanitizer.
  • 625
  • 10 Jan 2022
Topic Review
Electrochemical Cell
An electrochemical cell is a device capable of either generating electrical energy from chemical reactions or using electrical energy to cause chemical reactions. The electrochemical cells which generate an electric current are called voltaic cells or galvanic cells and the other ones are called electrolytic cells which are used to drive chemical reactions like electrolysis. A common example of an galvanic cells is a standard 1.5 volt cell meant for consumer use. A battery consists of one or more cells, connected either in parallel, series or series-and-parallel pattern.
  • 1.6K
  • 08 Oct 2022
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