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As of today, AM applications affect industries such as aerospace, medical, automotive, jewellery and tooling.
Metal parts produced by powder bed fusion show good mechanical properties and high geometric complexity can be realised.
Furthermore, post processing technologies can be applied in order to improve the component’s surface, dimensional accuracy and material properties [9].
This list summarizes the influencing factors on AM implementation.
Leveraging mobilisation and fragmentation of production due to the lack of required tools and the limited amount of production factors, decentralised production can be realised.

Introduction As the lightest structural metallic material of engineering, Mg and its alloys were widely used in aeronautical engineering,automobile industry and 3C product fields due to their outstanding physical and mechanical properties, such as low densities, high strength, good machinability and potentially high strength/weight ratios, etc.[1-3].
Thus, the significant issue to maintain the mechanical integrity of magnesium-based implants at the period of tissue healing is to reduce the biodegradation rate.
Conclusions The anti-corrosion behaviors of biomedical coating on Mg alloys produced by hydrothermal method were influenced by many factors.The increasing of the hydrothermal time and temperature will lead to the thicker coating, which will enhance the efficiency of preventing the penetration of aggressive medium.
Magnesium: Properties—applications—potential.
Layered double hydroxide films: synthesis, properties and applications[J].

Nevertheless there are several factors that limit the conversion of solar energy into hydrogen.
Optical Properties.
Photoelectrochemical Properties.
The high photoelectrocatalytic activity of the GR/N-TiO2 film could be attributed to three factors.
Water content in the anodization electrolyte affects the electrochemical and electronic transport properties of TiO2 nanotubes: a study by electrochemical impedance spectroscopy, J.

Thus, Vachálek et al. [17] simulated a mechanical cylinder component manufacturing plant using a DT of this plant using Siemens plant simulation software.
The time required for each manufacturing process was modelled and set on the system following this procedure: · Direct observations of manufacturing cells, to determine the influence factors on task time for each process carried out
The system inputs are the identification code of the orders, the number of parts of each order, and the properties of each part necessary for the calculation of task times.
On the other hand, in the case of the outputs, there is a deviation of approximately 7 minutes on average, because of different external influences that may have affected external factors to the process, as well as uncertainties of the model itself.
In this context, DTs are tools that allow us to know the behavior of all the elements that make up a system by simulating different scenarios, providing the necessary information on how this scenario will affect production, avoiding overruns cost in the plant.

It was reported that one of the suspected factors that caused the cracks was inadequate toughness properties of the steel for low temperature service [1].
The scatter in the upper shelf is in most cases related to a combination of material flow properties, microstructure and strain rate.
Croydon, Investigation of toughness properties of grade A ship plate, CR0 2DS Materials laboratory (1997) 97-3353
Sterjovski, Metallurgical factors affecting the dynamic fracture of naval shipbuilding steels, Defense research and development Canada, Scientific report, DRDC-RDDC-2017-R160 (2019)
Druce, Effect of heat treatment on the fracture toughness transition properties of an A508 Class 3 steel, Fundamentals and applications, Mechanical engineering publications (1991) 587-611

Fig. 1 Details of specimen [units:mm] Table 1 Material properties of rebar and CFRP plate [MPa] Ultimate strength Tensile strength Elastic modulus 8 323 470 1.98×105 12 351 489 1.95×105 CFRP plate ≥2800 2800 1.85×105 Concrete with cube compressive strength of fc=50.0 MPa, splitting tensile strength of 3.15 MPa and elastic modulus of 3.20×104 MPa was used in the term of ready-mixed concrete.
The specific properties of the rebar and CFRP plate with thickness of 1.4mm and width of 100mm were listed in Table 1.
It is confirmed that tensile steel bar was one of main factors affected the initial damage: tensile steel bar strain increased rapidly as the more serious damage happening, which resulted in the early yielding of longitudinal tensile steel bar.
The Hognestad criterion was adopted to describe the concrete mechanical behaviors, and the ideal elastic-plastic constitutive model was used to explain the normal reinforcing steel bars, as well as the linear-elastic constitutive relationship was employed to simulate CFRP plates.

Six-joint industrial manipulators are a complex multi-input and multi-output systems characterized by strong nonlinear and time-varying properties.
This adversely affects the robot dynamics.
Industrial manipulators used for assembly tasks come into contact with environmental objects of highly varying stiffnesses (up to factor 100 is usual).
The Hexa platform is controlled in a way that the manipulator "feels" a constant environmental stiffness irrespective of any object properties, i.e. there is no difference if a steel or a rubber element is contacted.
In proc. of the Institute of Mechanical Engineering, vol. 180, pp. 371-386, 1965

Introduction Surface modification of titanium and its alloys has been intensively studied in recent years to improve their surface properties, e.g., hardness, corrosion, and oxidation resistance, aiming at a wide variety of applications from biomedical implants to mechanical parts under severe working conditions [1,2].
The direct growth of nitrides layer on the top of Ti or Ti alloys can not only utilize the excellent properties of nitrides but also keep the bulk materials unaffected at room temperature.
On the other hand, the eject trajectory of emitted debris or C species from anode surface can be greatly affected by ablation plasma from the central area of samples (series A and B) that favors a radial deposition to the peripheral locations (positions C and D) other than central ones (positions A and B).
From our experimental findings of Ti nitrides (or carbontrides) formation on pure Ti under IPIB irradiation in a vacuum, several factors should be taken into account for interpreting the ntriding/carbonitriding process.

Non-soil lead hole pile technology is which change the physical and mechanical properties of the soil through a special method in order to reduce the lateral friction and shear strength of the soil, to meet the pile needs.
Rotational speed The rotational speed is mainly related to the impact of frequency, size specifications and rock physical and mechanical nature.
So, it directly affects its usage.
The efficiency of construction is affected by air flow, pressure of air compressor, and loses the diameter of the duct.
Due to the existence of the cave, the high cost and long duration, unforeseen factors, sometimes a pile necessary to be constructed foe two weeks, the construction period is significantly delayed.

Non-soil lead hole pile technology is which change the physical and mechanical properties of the soil through a special method in order to reduce the lateral friction and shear strength of the soil, to meet the pile needs.
The rotational speed is mainly related to the impact of frequency, size specifications and rock physical and mechanical nature.
So, it directly affects its usage.
The efficiency of construction is affected by air flow, pressure of air compressor, and loses the diameter of the duct.
Due to the existence of the cave, the high cost and long duration, unforeseen factors, sometimes a pile necessary to be constructed foe two weeks, the construction period is significantly delayed.