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Looking for sentences with "Hfc"? Here are some examples.

1. Hydrofluorocarbon - HFC: A substitute for chlorofluorocarbons
2. hfc Hybrid Fiber Coax provides a kind of broadband access way for multimedia and broadband services
3. hfc - fa - pentafluoropropane is one of the substitute compounds for CFC HCFC
4. On the basis of analyzing hfc and EPON the method of digital television transmission over EPON is proposed
5. The preparation of hfc - by catalytic hydrogenation of CFC - was explored
6. The hfc - based ATM network is supported by the ATM nodal switching user terminal unit and headend unit
7. hfc Hybrid Fiber Coax access network is attached great importance because of its tremendous bandwidth and relative economy
8. Due to the hfc network's tree topology large service area and great round trip delay it is an issue worth researching when we design the MAC Media Access Control protocol in hfc networks
9. Applications : XDSL hfc Home PNA STB Cable modem etc
10. The hfc hydrofluorocarbon refrigerant currently used in virtually every American model car and truck HFC-a has a GWP of compared to the new refrigerant's HFC-yf GWP of just four
11. Hybrid Fiber Coax hfc networks are considered a promising infrastructure of broadband access network
12. Hydraulic fluid power Fluids Measurement of filtrability of hfc and HFD class fire resistant fluids
13. The advent of hfc network infrastructure established the bidirectional basis of CATV network
14. However the hfc — a refrigerator consumed about ? more electricity than the CFC — refrigerator
15. The paper mainly introduces the design project of hfc forward transmission network in Antu County including scheme technique index and system index testing of optical cable transmission network
16. The improvement field emission by Hf coating on CNTs surface is attributed to the low work function chemical inertness and good conductivity of hfc
17. At last we shall discuss how to emulate the transmission model with software in hfc
18. In order to solve the environment damaging problem of the CFC as far as possible HCFC and hfc as the replacements for CFC have been developed and some of them have been applied
19. This paper summarizes some understanding and experience of two - way hfc network design and transmission system debugging
20. This paper describes the protocol hierarchy governing the device layer physical layer MAC layer and application layer of hfc network management system utilizing the IECSCTE HMS standard model
21. The truncated binary exponential back-off CRACollision Resolution Algorithm has been widely applied in random multi-access channel such as LAN and hfc
22. This paper describes Hunan district - country multimedia video conference system based on hfc
23. Experimental results demonstrate that the given system has received perfect performance in maintenance of reverse channel of hfc
24. It compares the technological economy ratio and practical applicability of HFC HDSL ADSL and FTTC
25. This paper presents an introduction to the network structure transmission method frequency spectrum distribution scheme modulation and multiaddress connection technology concerning hfc
26. This thesis studies the properties and data transmission technologies of the upstream channel of hfc - CATV networks
27. Considering for local current situation of network in CangZhou city mainly analyzed constructing standard and implementary scheme of hfc cable distribution system two-way transformation
28. The noise characteristics and the - interference techniques of the hfc - CATV upstream channel are studied in this thesis
29. By the new method the intermolecular potential SW LJ[sentencedictcom] Kihara parameters of hfc was determined
30. Hydrofluorocarbon (HFC), any of several organic compounds composed of hydrogen, fluorine, and carbon. HFCs became widely used as refrigerants in the late 1980s, but their status as potent greenhouse gases led to their manufacture and use becoming increasingly regulated in the 21st century.
31. Hybrid fiber-coaxial (HFC) is a telecommunications industry term for a broadband network that combines optical fiber and coaxial cable.It has been commonly employed globally by cable television operators since the early 1990s.. In a hybrid fiber-coaxial cable system, the television channels are sent from the cable system's distribution facility, the headend, to local communities through
32. This tool provides several methodologies for estimating hfc emissions in accordance with the CEQ guidance, depending on the level of information available to each agency about HFC-containing equipment. Use of this tool is optional but is designed to complement data entry for the Federal Energy Management Program (FEMP) Data Report.
33. According to a report by the UN, the “warming potential per molecule of hfc is 11,700 times more powerful than carbon dioxide”. The report goes on to explain that if hfc use continues at the current rate, they could soon surpass carbon dioxide as the compound that has the greatest negative impact on global warming.
34. Hybrid-fiber coax (HFC)/data over cable system interface specification (DOCSIS®) access networks are widely used to address the needs of residential and enterprise consumers for high speed Internet (HSI), video, and voice services.
35. The newest generation of hfc systems perform even better than those designed in 2000. Comparing hfc and non-hfc refrigerants should thus take this evolution into account and use the data for the newest systems. Comparisons between a five-year-old system and a current system do not give accurate conclusions about performance.
36. An nbn™ Hybrid Fibre Coaxial (HFC) connection is used in circumstances where the existing ‘pay TV’ or cable network can be used to make the final part of the nbn™ access network connection. In this circumstance an hfc line will be run from the nearest available fibre node, to your premises.
37. Complying with Washington's hfc law. The law focuses on reducing the use of HFCs in new equipment, so manufacturers and distributors must meet these requirements. In most cases, residents and businesses that own or use equipment containing HFCs will not need to do anything to obey the law. Frequently asked questions
38. Use of HFC-134a in MVAC systems accounts for an estimated 24% of total global hfc consumption. It is the most abundant hfc in the atmosphere. HFC-134a will no longer be approved for use in new light-duty vehicles manufactured or sold in the United States as of model year 2021 as a result of EPA’s July 2015 final rule under SNAP (July 20, 2015
39. By signature below, the applicant and his/her representatives certify that they have received a copy of the “Facilities Use Policies and Regulations”; that they have read, understand, and agree to all said policies and regulations; and that the signatory below is a representative of the group seeking to use hfc facilities and authorized to
40. Review HFC's tuition and fees for information about tuition costs and your itemized tuition bill. See details about alternative payment options below. For further questions about payment methods, contact the Student accounts Office. Due to COVID-19, our hours have changed. Please use the contact information below to reach out to us.
41. Former hfc instructor Deborah Al Najjar recently founded DESIRECompass Coaching, a writing consultancy to assist aspiring authors at all levels. Oct 22. Futures for Frontliners information sessions. Join our free Futures for Frontliners information sessions. Learn about eligibility, what is covered, and how to use the scholarship to enroll at hfc.
42. What HFCs are prohibited in California and why? California is required to reduce hfc emissions 40 percent below 2013 levels by 2030 under Senate Bill 1383 (Health & Saf. Code § 39730.5). HFCs are synthetic gases that are used in a variety of applications, but mainly to replace ozone-depleting substances in aerosols, foams, refrigeration and air-conditioning.
43. To avoid the use and emissions of hydrofluorocarbons (HFCs), a variety of climate-friendly, energy-efficient, safe and proven alternatives are available. Due to different thermodynamic and safety properties of the alternatives, there is no ’one size fits all’ solution.
44. “It has been calculated that if hfc use were allowed to keep growing, HFCs could add nearly another 0.5 degree centigrade (nearly a full degree Fahrenheit) to global average temperatures by 2100,” testified Doniger. “In a world now on track for at least a 3 degrees Centigrade rise and struggling to find the policies to hold warming to 1.5
45. Do We Have to Use These Climate-Destroying Gases? No! HFC-free technologies are currently available, and more are coming on-line every year so that most uses could be phased-out by 2020 and the remaining uses by 2030. Some of the currently available climate-friendly alternatives include hydrocarbons, ammonia (R- 717), water and carbon dioxide (CO2 or R-744).
46. 1. Hydrofluorocarbon - HFC: A substitute for chlorofluorocarbons: 2. hfc Hybrid Fiber Coax provides a kind of broadband access way for multimedia and broadband services: 3. hfc - fa - pentafluoropropane is one of the substitute compounds for CFC HCFC: 4. On the basis of analyzing hfc and EPON the method of digital television transmission over EPON is proposed
47. “The court’s decision restores common-sense restrictions on hfc use that EPA had illegally removed and now EPA has to ensure that as companies complete their transition away from ozone

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