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Topic Review
Bicycle Sharing Systems
Bicycle Sharing Systems (BSSs) are a novel transport mode that benefits from the new sharing economy. BSSs provide flexible mobility services to users who can rent or borrow a bicycle to move around the city in a cheap, healthy, and environmentally friendly way.
  • 991
  • 27 Oct 2020
Biography
John Michael Małek
John Michael Małek (born May 18, 1928 in Piotrków Trybunalski, Poland ) is a Polish-American engineer, entrepreneur, real estate investor and developer, economics enthusiast, and activist and philanthropist.[1][2] Małek received a Master’s degree in chemical engineering from Warsaw University of Technology (Politechnika Warszawska) and subsequently worked in the pharmaceutical industry.
  • 991
  • 07 Dec 2022
Biography
Daniel M. Fleetwood
Daniel M. Fleetwood (born August 3, 1958) is an American scientist, inventor, engineer and innovator. He is credited as being one of the first to identify the origins of flicker noise in semiconductor devices and its usefulness in understanding the effects of ionizing radiation on microelectronic devices and materials. Fleetwood is the Olin H. Landreth Chair of the Electrical Engineering and Co
  • 990
  • 01 Dec 2022
Topic Review
All-Solid-State Lithium–Oxygen Batteries
All-solid-state lithium–oxygen batteries (ASSLOBs) are emerging as a promising next-generation energy storage technology with potential energy densities up to ten times higher than those of current LIBs. ASSLOBs utilize non-flammable solid-state electrolytes (SSEs) and offer superior safety and mechanical stability. However, ASSLOBs face challenges, including high solid-state interface resistances and unstable lithium-metal anodes.
  • 983
  • 04 Aug 2023
Biography
Harry V. Gates
Harry Verner Gates (July 30, 1847 – October 13, 1935) was an United States engineer and politician in the state of Oregon. A native of Massachusetts , he later lived in Iowa worked on the railroads before settling in Hillsboro, Oregon, where he shifted to water projects. A member of the Republican Party, he served a single term in the Oregon House of Representatives. His former home in Hillsbo
  • 979
  • 27 Dec 2022
Biography
Coleman Sellers II
Coleman Sellers II (January 28, 1827 – December 28, 1907) was a prominent American engineer, chief engineer of William Sellers & Co., professor of mechanics at the Franklin Institute, professor of engineering practice at Stevens Institute of Technology and inventor. He obtained more than thirty letters-patent for inventions of his own, and served as president of the American Society of Mechani
  • 977
  • 12 Dec 2022
Biography
Rolf Heinrich Sabersky
Rolf Heinrich Sabersky (October 20, 1920 – October 24, 2016) was professor emeritus in mechanical engineering at Caltech. He worked with luminaries throughout his career including Apollo M. O. Smith and Theodore von Kármán at Aerojet. James Van Allan sought his expertise for the development of the Ajax and Bumblebee rocket programs. Rolf Heinrich Sabersky was born in Berlin, Germany. His
  • 974
  • 27 Dec 2022
Topic Review
Rent Regulation
Rent regulation is a system of laws, administered by a court or a public authority, which aim to ensure the affordability of housing and tenancies on the rental market for dwellings. Generally, a system of rent regulation involves: The classic objective is to limit the price that would result from the free market. The loose term "rent control" can apply to several types of price control: Comprehensive rent regulation is common in Commonwealth and European Union countries, including Canada, Germany, Ireland, Cyprus, Sweden, and four states in the United States . A majority of OECD countries maintain rent-regulation laws, some changing to softer rent controls. A 2009 review of the economic literature:106 by Blair Jenkins through EconLit covering theoretical and empirical research on multiple aspects of the issue, including housing availability, maintenance and housing quality, rental rates, political and administrative costs, and redistribution for both first generation and second generation rent control systems found that “the economics profession has reached a rare consensus: Rent control creates many more problems than it solves”.:105 :1 :1 :1
  • 971
  • 09 Nov 2022
Biography
Robert W. Hunt
Robert Woolston Hunt (December 9, 1838 – July 11, 1923) was an American metallurgical engineer, inventor, and superintendent in the steel industry. He is known as President of the American Institute of Mining Engineers in 1883 and 1906; President of the American Society of Mechanical Engineers in the year 1891–92; and President of the Western Society of Engineers in 1893. Born in Fallsi
  • 968
  • 24 Nov 2022
Biography
Jack R. Janney
Jack Raymond Janney (June 17, 1924 – October 9, 2006), born in Alamosa, Colorado, was a U.S. structural engineer and an innovator in the understanding of structural behavior and a recognized leader in the investigation of structural collapses. Janney’s love of mathematics and science spurred his decision to become an engineer, and in 1942, he enrolled in the College of Engineering at the Uni
  • 966
  • 06 Dec 2022
Topic Review
Sea Waste to Enhance Sustainability in Composite Materials
The term “sea waste” generally refers to any solid, liquid, or gaseous material or substance that is discarded, disposed of, or abandoned in the ocean, sea, or any other body of salty water, such as a lagoon, etc. This includes waste generated by human activities on land that makes its way into the ocean, as well as waste generated by ships and other vessels at sea. Examples of sea waste include plastic debris, chemicals and toxic substances, oil spills, sewage, and other forms of pollution. These pollutants can harm marine ecosystems, endanger marine life, and impact human health and wellbeing. Sea waste can be recovered by its use into composite materials, as their reinforcement or as their matrix.  
  • 966
  • 26 May 2023
Biography
Murray Raney
Murray Raney (October 14, 1885 – March 3, 1966) was an United States mechanical engineer born in Carrollton, Kentucky. He was the developer of a nickel catalyst that became known as Raney nickel, which is often used in industrial processes and scientific research for the hydrogenation of multiple covalent bonds present in molecules. Raney was born in Carrollton, Kentucky, to William Wallace
  • 961
  • 17 Nov 2022
Topic Review
Application of Non-Destructive Testing Techniques to Characterize Nanocarriers
The synthesis of tailored and highly engineered multifunctional pharmaceutical nanocarriers is an emerging field of study in drug delivery applications. They have a high surface-area-to-volume ratio, aiding the targeted drug’s bio-distribution and pharmacokinetic properties. Therefore, the characterization of nanocarriers is critical for understanding their physicochemical properties, which significantly impact their molecular and systemic functioning. To achieve specific goals, particle size, surface characteristics, and drug release properties of nanocarriers must be managed. An overview of the applications of non-destructive testing techniques (NDTT) to reveal the characteristics of nanocarriers, considering their surface charge, porosity, size, morphology, and crystalline organization. The compositional and microstructural characterization of nanocarriers through NDTT, such as dynamic light scattering, X-ray diffraction, confocal laser scanning microscopy, ultraviolet-visible spectroscopy, scanning electron microscopy, atomic force microscopy, and nuclear magnetic resonance spectroscopy, have been comprehensively reviewed. Furthermore, NDTT is only used to characterize physicochemical parameters related to the physiological performance of nanocarriers but does not account for nanocarrier toxicity. Hence, it is highly recommended that in the future, NDTT be developed to assess the toxicity of nanocarriers. In addition, by developing more advanced, effective, and precise techniques, such as machine vision techniques using artificial intelligence, the future of using NDTT for nanocarrier characterization will improve the evaluation of internal quality parameters.
  • 959
  • 06 Jul 2022
Biography
Billy Guin
Billy James Guin, Sr. (born November 14, 1927),[1] is a retired businessman and engineer from Shreveport, Louisiana, who was from 1977 to 1978 his city's last public utilities commissioner under the former commission system of municipal government.[2] Since 1961, Guin has been involved in the development of the Louisiana Republican Party to majority status in his state. In 1964, he and two other
  • 957
  • 27 Dec 2022
Topic Review
Liquid Metal Embrittlement
Liquid metal embrittlement, also known as liquid metal induced embrittlement, is a phenomenon of practical importance, where certain ductile metals experience drastic loss in tensile ductility or undergo brittle fracture when exposed to specific liquid metals. Generally, a tensile stress, either externally applied or internally present, is needed to induce embrittlement. Exceptions to this rule have been observed, as in the case of aluminium in the presence of liquid gallium. This phenomenon has been studied since the beginning of the 20th century. Many of its phenomenological characteristics are known and several mechanisms have been proposed to explain it. The practical significance of liquid metal embrittlement is revealed by the observation that several steels experience ductility losses and cracking during hot-dip galvanizing or during subsequent fabrication. Cracking can occur catastrophically and very high crack growth rates have been measured. Similar metal embrittlement effects can be observed even in the solid state, when one of the metals is brought close to its melting point; e.g. cadmium-coated parts operating at high temperature. This phenomenon is known as solid metal embrittlement.
  • 956
  • 21 Nov 2022
Topic Review
Kia Connect
Kia Connect, formerly UVO eServices, is a subscription-free OEM infotainment and telematics service offered by Kia Motors America on select vehicles for the United States market. The system allows users to make hands-free calls on their smartphone, stream music, navigate to a POI, and perform vehicle diagnostics with the use of voice commands. The integrated in-vehicle communications and entertainment system is developed by Kia Motors and other third-party developers.
  • 953
  • 17 Nov 2022
Biography
Ambrose Swasey
Ambrose Swasey (December 19, 1846 – June 15, 1937) was an United States mechanical engineer, inventor, entrepreneur, manager, astronomer, and philanthropist. With Worcester R. Warner he co-founded the Warner & Swasey Company. Swasey was born near Exeter, New Hampshire [1] to Nathaniel and Abigail Swasey. He apprenticed as a machinist at the Exeter Machine Works and was afterwards employed a
  • 952
  • 16 Nov 2022
Topic Review
Medical Ventilator
A medical ventilator (or simply ventilator in context) is a machine designed to provide mechanical ventilation by moving breathable air into and out of the lungs, to deliver breaths to a patient who is physically unable to breathe, or breathing insufficiently. While modern ventilators are computerized machines, patients can be ventilated with a simple, hand-operated bag valve mask. Ventilators are chiefly used in intensive care medicine, home care, and emergency medicine (as standalone units) and in anesthesiology (as a component of an anesthesia machine). Medical ventilators are sometimes colloquially called "respirators", a term stemming from commonly used devices in the 1950s (particularly the "Bird Respirator"). However, in modern hospital and medical terminology, these machines are never referred to as respirators, and use of "respirator" in this context is now a deprecated anachronism signaling technical unfamiliarity. In the present-day medical field, the word "respirator" refers to a protective face mask.
  • 952
  • 30 Nov 2022
Topic Review
Watch System
A watch system, watch schedule, or watch bill is a method of assigning regular periods of work duty aboard ships and some other areas of employment. A watch system allows the ship's crew to operate the ship 24 hours a day for the duration of long voyages or operations. Many watch systems incorporate the concept of dogging, whereby one watch is split into two shorter watches so that there is an odd number each day. Doing so allows crew members to have a different watch schedule each day. Often, the dog watches are set at dinner time to allow the entire crew to be fed in short order.
  • 951
  • 12 Oct 2022
Biography
Charles Robinson Rockwood
Charles Robinson Rockwood (born May 14, 1860) was a United States of America citizen who worked as a surveyor, engineer, and entrepreneur.[1][2][3][4][5][6] His most significant achievement was managing the construction of a canal system that transformed the Colorado Desert into a verdant agricultural development known as the Imperial Valley, CA, USA.[2][7][8][9][10][11][12][13] He is also infam
  • 951
  • 02 Dec 2022
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