Hf.com.hk - Hydrogen fluoride - Wikipedia

Provided by Alexa ranking, hf.com.hk has ranked N/A in N/A and 5,235,596 on the world. hf.com.hk reaches roughly 590 users per day and delivers about 17,711 users each month. The domain hf.com.hk uses a Commercial suffix and it's server(s) are located in N/A with the IP number 202.181.195.144 and it is a .com.hk domain.

WebHF is diatomic in the gas-phase. As a liquid, HF forms relatively strong hydrogen bonds, hence its relatively high boiling point. Solid HF consists of zig-zag chains of HF molecules. The HF molecules, with a short covalent H–F bond of 95 pm length, are linked to neighboring molecules by intermolecular H–F distances of 155 pm. [4] Liquid HF ...

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Hydrogen fluoride - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/Hydrogen_fluoride

WebHF is diatomic in the gas-phase. As a liquid, HF forms relatively strong hydrogen bonds, hence its relatively high boiling point. Solid HF consists of zig-zag chains of HF molecules. The HF molecules, with a short covalent H–F bond of 95 pm length, are linked to neighboring molecules by intermolecular H–F distances of 155 pm. [4] Liquid HF ...

DA: 52 PA: 18 MOZ Rank: 64

Hydrofluoric acid - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/Hydrofluoric_acid

WebHydrofluoric acid is a solution of hydrogen fluoride (HF) in water. Solutions of HF are colorless, acidic and highly corrosive. It is used to make most fluorine-containing compounds; examples include the commonly used pharmaceutical antidepressant medication fluoxetine (Prozac) and the material PTFE (Teflon).

DA: 39 PA: 59 MOZ Rank: 28

Heart Failure | American Heart Association
heart.org

https://www.heart.org/en/health-topics/heart-failure

WebThe American Heart Association wants to help you Rise Above Heart Failure (HF). Find out the warning signs of heart failure, also called congestive heart failure (CHF), learn about ejection fraction, and how to treat and manage your HF.

DA: 13 PA: 92 MOZ Rank: 25

Hydrofluoric Acid - Environment, Health and Safety
unc.edu

https://ehs.unc.edu/topics/hazardous-chemicals/hydrofluoric-acid/

WebHydrofluoric Acid. Hydrofluoric acid (HF) differs from other acids because it readily penetrates the skin and dissociates into fluoride ions, causing destruction of deep tissue layers, including bone. Pain associated with skin exposure to HF may not occur for 1-24 hours.

DA: 15 PA: 28 MOZ Rank: 88

High frequency - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/High_frequency

WebHigh frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten decameters (ten to one hundred meters).

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2022 AHA/ACC/HFSA Guideline for the Management of Heart Failure
ahajournals.org

https://www.ahajournals.org/doi/10.1161/CIR.0000000000001063

WebApr 1, 2022 · HF Description. HF is a complex clinical syndrome with symptoms and signs that result from any structural or functional impairment of ventricular filling or ejection of blood. The writing committee recognizes that asymptomatic stages with structural heart disease or cardiomyopathies are not covered under the above definition as having HF.

DA: 34 PA: 9 MOZ Rank: 67

Universal Definition and Classification of Heart Failure: A Step in the
acc.org

https://www.acc.org/latest-in-cardiology/articles/2021/07/12/12/31/universal-definition-and-classification-of-heart-failure

WebJul 12, 2021 · Classification of HF according to LVEF now includes: HFrEF: symptomatic HF with LVEF ≤40%. HFmrEF: symptomatic HF with LVEF 41-49%. HFpEF: symptomatic HF with LVEF ≥50%. HFimpEF: symptomatic HF with a baseline LVEF ≤40%, a ≥10-point increase from baseline LVEF, and a second measurement of LVEF >40%. Language matters!

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Hf Definition & Meaning - Merriam-Webster
merriam-webster.com

https://www.merriam-webster.com/dictionary/hf

Webabbreviation (2) high frequency.

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Heart Failure and Ejection Fraction - StatPearls - NCBI Bookshelf
nih.gov

https://www.ncbi.nlm.nih.gov/books/NBK553115/

WebDec 23, 2022 · Heart failure (HF) is a complex clinical syndrome that results from either functional or structural impairment of ventricles resulting in symptomatic left ventricle (LV) dysfunction. The symptoms come from an inadequate cardiac output, failing to keep up with the metabolic demands of the body.

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Heart Failure (HF) - Cardiovascular Disorders - MSD Manuals
msdmanuals.com

https://www.msdmanuals.com/professional/cardiovascular-disorders/heart-failure/heart-failure-hf

WebOverview of Heart Failure. Heart failure (HF) is a syndrome of ventricular dysfunction. Left ventricular (LV) failure causes shortness of breath and fatigue, and right ventricular (RV) failure causes peripheral and abdominal fluid accumulation; the ventricles can be involved together or separately.

DA: 10 PA: 28 MOZ Rank: 56

Alexa Rank

GLOBAL RANK

5,235,596

Alexa Reach

0.0000260607

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N/A

Alexa Rank Country N/A

N/A

Daily Unique Visitors

590

Monthly Unique Visitors

17,711

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963

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855

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537

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537

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326

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321

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266

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259

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DNS Record

Host	Type	Class	TTL	Extra
hf.com.hk	SOA	IN	3600	Mname: imsp004.netvigator.com Rname: sysadmin.imsp004.netvigator.com Serial: 2019112601 Refresh: 10800 Retry: 3600 Expire: 604800 Minimum-ttl: 3600
hf.com.hk	MX	IN	3600	Pri: 10 Target: mail.hf.com.hk
hf.com.hk	NS	IN	3600	Target: ns3.netvigator.com
hf.com.hk	NS	IN	3600	Target: ns4.netvigator.com
hf.com.hk	A	IN	3600	Ip: 202.181.195.144

Hosting and Whois Zone

IP	202.181.195.144
Domain infomation	------------------------------------------------------------------------------- Whois server by HKIRC ------------------------------------------------------------------------------- .hk top level Domain names can be registered via HKIRC-Accredited Registrars. Go to https://www.hkirc.hk/content.jsp?id=280 for details. ------------------------------------------------------------------------------- Domain Name: HF.COM.HK Domain Status: Active DNSSEC: unsigned Contract Version: Old Contract Active variants Inactive variants Registrar Name: Hong Kong Domain Name Registration Company Limited Registrar Contact Information: Email: [email protected] Hotline: +852 2319 1313 Reseller: Registrant Contact Information: Company English Name (It should be the same as the registered/corporation name on your Business Register Certificate or relevant documents): HING FAT LIGHTING INTERNATIONAL LIMITED Company Chinese name: 興發燈飾國際有限公司 Address: UNIT 01 1/F BLK C SEA VIEW EST 2-8 WATSON ROAD NORTH POINT HONG KONG HK - - Country: Hong Kong (HK) Email: [email protected] Domain Name Commencement Date: 03-04-2000 Expiry Date: null Re-registration Status: Complete Administrative Contact Information: Given name: WINNIE Family name: NG Company name: HING FAT LIGHTING INTERNATIONAL LIMITED Address: UNIT 01 1/F BLK C SEA VIEW EST 2-8 WATSON ROAD NORTH POINT HONG KONG HK - - Country: Hong Kong (HK) Phone: +852-29790063 Fax: +852-29790991 Email: [email protected] Account Name: HK1272529T Technical Contact Information: Given name: PCCW Family name: ICENTER Company name: PCCW IMS LIMITED Address: 12/F CSL TOWER 322-324 DES VOEUX RDC CENTRAL HK HK - - Country: Hong Kong (HK) Phone: +852-28880046 Fax: +852-28882648 Email: [email protected] Name Servers Information: NS3.NETVIGATOR.COM NS4.NETVIGATOR.COM Status Information: Domain Prohibit Status: ------------------------------------------------------------------------------- The Registry contains ONLY .com.hk, .net.hk, .edu.hk, .org.hk, .gov.hk, idv.hk. and .hk $domains. ------------------------------------------------------------------------------- WHOIS Terms of Use By using this WHOIS search enquiry service you agree to these terms of use. The data in HKDNR's WHOIS search engine is for informational purposes only and HKDNR does not guarantee the accuracy of the data. The data is provided to assist people obtaining information about the registration record of domain names registered by HKDNR. You agree to use the data for lawful purposes only. In light of the General Data Protection Regulation, HKIRC reserves the right to not make available certain data on this WHOIS search enquiry. You are not authorised to use high-volume, electronic or automated processes to access, query or harvest data from this WHOIS search enquiry service. You agree that you will not and will not allow anyone else to: a. use the data for mass unsolicited commercial advertising of any sort via any media including telephone, email or fax; or b. enable high volume, automated or electronic processes that apply to HKDNR or its computer systems including the WHOIS search enquiry service; or c. without the prior written consent of HKDNR compile, repackage, disseminate, disclose to any third party or use the data for a purpose other than obtaining information about a domain name registration record; or d. use such data to derive an economic benefit for yourself. HKIRC in its sole discretion may terminate your access to the WHOIS search enquiry service (including but not limited to blocking your IP address) at any time due to, including but not limited to, excessive use of the WHOIS search enquiry service. HKDNR may modify these terms of use at any time by publishing the modified terms of use on its website.