A Novel Prototype of a Small-Scale Solar Power Plant: dynamic Simulation and Thermoeconomic Analysis

Journal of Aircraft and Spacecraft Technology

2021

Today drones have become so important that everyday life can no longer be conceived without them. The paper wishes to present some essential aspects regarding modern drones, their capabilities and their uses. Drones and minnies drones have penetrated deep into technology, industry, agriculture, the military and police area, security services, security and control, aerial surveillance, signaling, aerial filming, cartography, da nger and fire signaling in a timely manner, surveillance missions, security, defense and attack. The major advantages of drones compared to conventional aircraft are the following: A much lower fuel consumption and a much lower polarization of the environment, sometimes the pole does not even exist the drones being electrically moved; much lower design, manufacturing, maintenance and operation prices. They do not require pilots, they are generally small and the manufacturing costs and materials are much reduced; in case of collisions they are very resistant, accidents with them being rare and without tragic consequences; they can operate various things without a pilot, without costs, without risks, with superior results to those of classic aviation. A simple way to reduce the consumption of raw materials needed by industries is the very economy of materials used in industries and the start must be made even with heavy industries and car manufacturers and primarily those in aviation and aerospace. With drones, the consumption of materials is extraordinary compared to the materials stored in old, classic, huge ships. Of course, large public aircraft are still needed for public passenger transport, which, no matter how redesigned, will still consume a lot of materials and energy, but for other daily air operations, drones will be able to successfully intervene in place of large and heavy ships. These areas will see huge savings in materials, not to mention the very low costs of people who will be replaced by robots, vending machines, cameras, low fuel consumption and the reduction and even elimination of massive pollution that was done by a massive use of large aircraft for any minor operations requiring flights. The drones come to usefully and efficiently complete large and important areas of flight, difficult and meticulous operations, the drones clearly having increased capabilities and much higher penetration.

Section: Introductionmentioning

confidence: 99%

Some Aspects of Modern Drones

Journal of Aircraft and Spacecraft Technology

2021

“…Assisted operation brings infinitely more advantages than the disadvantage that the operator block is voluminous and costly. However, apart from the related space, the costs are amortized over time and the satisfaction of the successful operations is great for both the patients and the medical team (Rulkov et al, 2016;Agarwala, 2016;Babayemi, 2016;Gusti and Semin, 2016;Mohamed et al, 2016;Wessels and Raad, 2016;Maraveas et al, 2015;Khalil, 2015;Rhode-Barbarigos et al, 2015;Takeuchi et al, 2015;Li et al, 2015;Vernardos and Gantes, 2015;Bourahla and Blakeborough, 2015;Stavridou et al, 2015;Ong et al, 2015;Dixit and Pal, 2015;Rajput et al, 2016;Rea and Ottaviano, 2016;Zurfi and Zhang, 2016a;2016b;Zheng and Li, 2016;Buonomano et al, 2016a;2016b;Faizal et al, 2016;Ascione et al, 2016;Elmeddahi et al, 2016;Calise et al, 2016;Morse et al, 2016;Abouobaida, 2016;Rohit and Dixit, 2016;Kazakov et al, 2016;Alwetaishi, 2016;Riccio et al, 2016a;2016b;Iqbal, 2016;Hasan and El-Naas, 2016;Al-Hasan and Al-Ghamdi, 2016;Jiang et al, 2016;Sepúlveda, 2016;…”

Section: Introductionmentioning

confidence: 99%

Medical Service of Robots

Journal of Mechatronics and Robotics

2019

Today, robots have not only penetrated to create microchips in electronics but also in medicine, where it helps to perform difficult operations, especially where precision is needed and the size is small and any human error could be fatal to the patient. Robots assist the doctor in heart, brain, kidney operations, not to mention bone implants and repair of damaged bones, cartilage and muscles. In this area, new materials adapted to the requirements of the human body also play an important role. The robotic systems used in today's operating blocks are very expensive and bulky and they need to be permanently adapted and prepared before a difficult operation, but in the end their help is unsurpassed because the operation takes place with the help of the machine and the computer, so they can perform a giant precision of hundredth of a millimeter, precision that stops the scalpel from cutting accidentally such as a nerve, a blood vessel, healthy tissue and anything else. Assisted operation brings infinitely more advantages than the disadvantage that the operator block is voluminous and costly. However, apart from the related space, the costs are amortized over time and the satisfaction of the successful operations is great for both the patients and the medical team. Surgery has taken advantage of this technology relatively late. Initial use of robots in surgery began in the late 1980s when an industrial robot was used to support instruments for stereotactic biopsy in neurosurgery. Also in the late 1980s, IBM built the first robot used in clinical practice, called Robo-doc. The first use of a robot in human surgery was for a transurethral prostate resection. In 1993, Computer Motion, Inc. introduced a voice-controlled arm, Automated Endoscopic System for Optimal Positioning (AESOPTM), used to support instruments, of optics in laparoscopic surgery. Its version, AESOPTM 2000 is the first human-controlled robot approved by the Food and Drug Administration of the United States. In 1998, Reichenspurner introduced the ZEUS Microsurgical Robotic System into Germany. Today, the most complex and efficient robot in use is the daVinci system. With the birth of laparoscopy and information technology, surgery went into a new era. The development of surgical robots is primarily motivated by their desire the need to increase the effectiveness of surgical medical interventions. Medical actions are chosen based on information from various sources, including patient-specific data (vital signs and images of human body tissues and organs), general medical knowledge (atlases of human anatomy) and medical experiences. First, a robot can usually do things much more accurate than a man. This provides the first motivation for using CAD/CAM systems. Robots can be used successfully if the patient has been radiated (e.g., with Xradiation), thus not endangering the health of the medical team. Since ancient times, the imagination of mankind has been concerned with the idea of making cars equipped with artificial intelligence to execute operations s...

“…Maybe just to say that due to his energy crisis (and not just energy, from 1970 until today), the production of cars has increased at an alert pace (but naturally) instead of falling and they have and were marketed and used. The world's energy crisis (in the 1970s) began to rise from around 200 million vehicles worldwide, to about 350 million in 1980 (when the world's energy and global fuel crisis was declared), about 500 million vehicles worldwide and in 1997 the number of worldregistered vehicles exceeded 600 million (Rulkov et al, 2016;Agarwala, 2016;Babayemi, 2016;Gusti and Semin, 2016;Mohamed et al, 2016;Wessels and Raad, 2016;Maraveas et al, 2015;Khalil, 2015;Rhode-Barbarigos et al, 2015;Takeuchi et al, 2015;Li et al, 2015;Vernardos and Gantes, 2015;Bourahla and Blakeborough, 2015;Stavridou et al, 2015;Ong et al, 2015;Dixit and Pal, 2015;Rajput et al, 2016;Rea and Ottaviano, 2016;Zurfi and Zhang, 2016a;2016b;Zheng and Li, 2016;Buonomano et al, 2016a;2016b;Faizal et al, 2016;Cataldo, 2006;Ascione et al, 2016;Elmeddahi et al, 2016;Calise et al, 2016;Morse et al, 2016;Abouobaida, 2016;Rohit and Dixit, 2016;Kazakov et al, 2016;Alwetaishi, 2016;Riccio et al, 2016a;2016b;Iqbal, 2016;…”

Section: Introductionmentioning

confidence: 99%

Dynamic Models for Rigid Memory Mechanisms

Journal of Mechatronics and Robotics

2019

The paper presents a dynamic model that works with variable internal damping, applicable directly to rigid memory mechanisms. If the problem of elasticity is generally solved, the problem of system damping is not clear and well-established. It is usually considered a constant "c" value for the internal damping of the system and sometimes the same value c and for the damping of the elastic spring supporting the valve. However, the approximation is much forced, as the elastic spring damping is variable and for the conventional cylindrical spring with constant elasticity parameter (k) with linear displacement with force, the damping is small and can be considered zero. It should be specified that damping does not necessarily mean stopping (or opposition) movement, but damping means energy consumption to brake the motion (rubber elastic elements have considerable damping, as are hydraulic dampers). Metal helical springs generally have a low (negligible) damping. The braking effect of these springs increases with the elastic constant (the k-stiffness of the spring) and the force of the spring (P 0 or F 0) of the spring (in other words with the arc static arrow, x 0 = P 0 /k). Energy is constantly changing but does not dissipate (for this reason, the yield of these springs is generally higher). The paper presents a dynamic model with a degree of freedom, considering internal damping of the system (c), damping for which it is considered a special function. More precisely, the cushioning coefficient of the system (c) is defined as a variable parameter depending on the reduced mass of the mechanism (m* or J reduced) and the time, i.e., c depends on the derivative of m reduced in time. The equation of the differential movement of the mechanism is written as the movement of the valve as a dynamic response.