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“Arlington, VA (May 02, 2022) – The Telecommunications Industry Association—the trusted industry association for the connected world—announced that its TR-14 Committee, which oversees TIA’s standards for towers and antenna supporting structures, has begun the process of updating the TIA-222-H standard since it’s last full revision in 2017. TIA invites all industry stakeholders to get involved and submit input for the update of TIA-222-H to TIA-222-I. From the project prospectus:
This Standard provides the requirements for the structural design and fabrication of new and the modification of existing antenna supporting structures, antennas, small wind turbine supporting structures, appurtenance mounting systems, structural components, guy assemblies, insulators and foundations.
This Standard is based on limit states design. It is applicable mainly to steel structures but may also be applied to other materials, when required, so as to provide an equivalent level of reliability.
The appropriate standards should be referenced for structures that support antennas but that are primarily intended for other applications, such as water towers, electrical transmission and distribution structures, sign support structures, lighting support structures, buildings, bridges, etc. This Standard, however, does apply to the calculation of effective projected areas of appurtenances (antennas, mounts, lines, etc.) and to the serviceability limit states appropriate for structures that support antennas.
Appropriate analysis and design criteria for other structural materials are outlined in Section 6.0 of the Standard. When a structure with a lower reliability is utilized as part of a communication system, the structure may require modification in order to meet the reliability requirements of this Standard. When the primary use of the structure is other than for communications, a higher reliability may be required in accordance with the applicable standard governing the primary use of the structure.
Structural requirements during construction and construction means and methods provisions are not within the scope of this Standard. For construction related loading, analysis, and design requirements during construction, installation, alteration, and maintenance, refer to the ANSI/TIA-322 Standard, “Loading, Analysis, and Design Criteria Related to the Installation, Alteration and Maintenance of Communication Structures”. For applicable construction means and methods provisions, refer to the ANSI/ASSE A10.48 Standard, “Criteria for Safety Practices with the Construction, Demolition, Modification and Maintenance of Communication Structures”.
TIA invites all industry stakeholders who are interested in participating in the revision of TIA-222 to contact TIA at [email protected] as soon as possible.
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Development of a Multi DOF Haptic Robot for Dentistry and Oral Surgery
Taiga Iijima – Tomoyuki Shimono | Yokohama National University
Takuya Matsunaga – Kouhei Ohnishi – Hiromasa Kawana | Kanagawa Institute of Industrial Science and Technology
Shin Usuda | Keio University
Abstract: There exist many dental surgery such as orthognathic surgery and an implant operation. Jaw deformity is one of the dental diseases such as an abnormality of occlusion and facial distortion in the shape. To treat jaw deformity, the osteotomy is carried out by human hands. However, drilling a jawbone accurately by oral surgeons is difficult. Recently, surgical robots are attracting attention in the medical field. The researches of surgery supporting systems have been carried out. They have possibilities to avoid unexpected accidents in the surgery, a hands shake and so on. The improvement of the minimally invasive surgery can be expected, thanks to robotic technology. The purpose of this research is the design and development of master-slave dentistry and oral surgery assisting robot. By implementing acceleration based bilateral control, haptic information can be communicated. Moreover, the proposed robot has the serial-parallel hybrid mechanism that can obtain the advantages of a serial mechanism and a parallel mechanism. In this paper, the mechanism of the proposed robot is explained and the performance of the proposed robot is validated by experiments.
CLICK HERE for complete paper
God walks among the pots and pans.
— Saint Teresa of Ávila c.1582
One of the concentrated risk aggregations in any school district, college, university and technical school, athletic venues and university-affiliated healthcare systems, rests in the food preparation units. On a typical large research university there are hundreds of kitchens in dormitories, student unions, athletic venues, hospitals and — to a surprising degree — kitchen facilities are showing up in classroom buildings. Kitchens that used to be located on the periphery of campus and run by private industry are now moving into instructional spaces and operated by private food service vendors.
Food preparation facilities present safety challenges that are on the same scale as district energy plants, athletic concession units, media production facilities and hospital operating rooms. There are 20 accredited standards setting organizations administering leading practice discovery in this space. Some of them concerned with fire safety; others concerned with energy conservation in kitchens, still others concerned with sanitation. The International Kitchen Exhaust Cleaning Association is one of the first names in this space and maintains an accessible standards development home page; linked below:
The IKECA catalog of titles establish a standard of care for cleaning activity that fills gaps in related ASHRAE, ASME, ICC and NFPA titles. For example:
IKECA I10 Standard for the Methodology for Inspection of Commercial Kitchen Exhaust Systems
IKECA C10 Standard for the Methodology for Cleaning Commercial Kitchen Exhaust Systems
Hazards posed by un-maintained exhaust systems are covered in the NFPA Report: Structure Fires in Eating and Drinking Establishments
We encourage subject matter experts in food enterprises in the education industry to communicate directly with John Dixon at IKCEA ([email protected]) or Elizabeth Franks, (215) 320-3876, [email protected], International Kitchen Exhaust Cleaning Association, 100 North 20th Street, Suite 400, Philadelphia, PA 19103.
We are happy to get specific about how the IKECA suite contributes to lower education community cost during our Food teleconferences. See our CALENDAR for the next online meeting; open to everyone.
Issue: [18-24]
Category: Facility Asset Management
Colleagues: Larry Spielvogel, Richard Robben
LEARN MORE:
Dormitories, Fraternities, Sororities and Barracks
Keele University “Look When You Cook”
Commercial Kitchen Ventilation
Traps, Interceptors and Separators
New update alert! The 2022 update to the Trademark Assignment Dataset is now available online. Find 1.29 million trademark assignments, involving 2.28 million unique trademark properties issued by the USPTO between March 1952 and January 2023: https://t.co/njrDAbSpwB pic.twitter.com/GkAXrHoQ9T
— USPTO (@uspto) July 13, 2023
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