Monday, November 16, 2020

Alternative technologies

Parler, Gab, MeWe, and Rumble Are Creating a Massive Right-Wing Echo Chamber

Alt-tech

TwitterGab (Mastodon), ParlerGettrTruth Social

YouTubeBitChuteRumble

FacebookMeWeCloutHubMinds

RedditVoat

WikipediaInfogalactic

4chan 8chan

DiscordTelegramSignal

Chrome browser, Edge, Firefox, Safari, Brave security, Dissenter

Google search engine, Bing, Yahoo!, DuckDuckGo duck.com

Internet Privacy

Prontonmail internet privacy

Privacy heroes
DuckDuckGo private search engine and browsing app
Brave the browser that shields you from trackers
ProntonVPN secure virtual private network
Tresorit encrypted file storage & sharing
Threema encrypted chat app
ProtonMail encrypted email provider, end-to-end encryption


Sunday, November 15, 2020

Saturday, November 14, 2020

Climate Comparison

Comfortable room temperatureThermal comfort myperfectweather Number of Days with Comfortable Weather with Daily High Temperature between 60°F and 80°F, Daily Maximum Dewpoint Temperature <=65°F

Cities of the World Where You Don’t Need AC or Heat, Mapped heater winter mean 55, average low 45; air conditioner summer mean 80 (should be 75), average high 82.5 (should be 80), from Santa Barbara (cooler), Malibu, (Los Angeles - Pacific Palisades) to San Diego, ocean view, need running trails, near but not close to the airport, Bogota, Quito, Mexico City, Guatemala City, Port Elizabeth, San Diego 

* Two residents/homes/houses combination: Cool summer (San Francisco) + warm winter (San Diego/Auckland), Auckland climate mean daily maximum, record high, Comparison 

Compare the Climate and Weather in Malibu, Santa Monica, Palos Verdes, Newport Beach, Cupertino, and Taipei 
Best time in Taiwan: temperature one season (3 month: 12/10-3/10), one month (1/10-2/10), mid-Dec to end of Feb, dryer From early-Dec to end-Jan, best: 12/14-2/10Monsoon 季風 梅雨 5/17-6/17  

*** BEST AREA Redfin searches: Malibu, Pacific Palisades 90272 Los Angeles, North of Montana Santa Monica, West Palos Verdes Peninsula Estates 90274, Rancho 90275, Newport Coast 92657, Laguna Beach 92651 
Fire Hazard Severity Zones 
*** Trail Run Hiking ProjectUSNews Best Hospitals Eye Ophthalmology UCLA USC UCI 

2024 Forbes Home 50 Most Expensive Zip Codes Across The Country 

2023 10 Most Expensive ZIP Codes in the United StatesAthertonBeverly Hills, Sagaponack NY, Los Altos Hills, Medina WA, North of Montana Santa Monica, Montecito, Rancho Santa Fe, Water Mill NY, Newport Coast Newport Beach

2023 PropertyShark Most Expensive U.S. Zip CodesAtherton, Sagaponack, Miami Beach, Montecito Santa Barbara, Beverly HillsStinson Beach, Water Mill, NY, Balboa Pesuninla Newport BeachNorth of Montana Santa Monica, MedinaRancho Santa FeLos Altos HillsNewport CoastPortola ValleyLos AltosBalboa IslandPacific PalisadesRoss

2022 The 10 Richest Zip Code in CaliforniaAtherton, Beverly Hills, Ross, North of Montana (Santa Monica), 94304 Palo Alto, Corona Del Mar (Newport Beach), Pacific Palisades, Stinson Beach, Malibu, Manhattan Beach 

2009 Forbes Full List: America's Most Expensive ZIP Codes 

compare average high and low temperature, hot warm comfortable cool cold, chance of clearer skies, daily chance of precipitation, average monthly rainfall, hours of daylight, chance of muggy conditions, average wind speed, tourism score, beach/pool score, growing season, growing degree days, average water temperature, average daily incident shortwave solar energy 

Taipei Taoyuan Hsinchu Keelung 

Comparison of the Average Weather in Kaohsiung and Miami

Comparison of the Average Weather in Taipei and Orlando

Comparison of the Average Weather in Santa Barbara and San Jose

Comparison of the Average Weather in Santa Monica, New port Beach, and San Diego

Compare the Climate and Weather in San Jose, Newport Beach, Seattle, and Denver

Saturday, November 07, 2020

Topographic map

Topographic map topo topography topographical

Caltopo TF Outdoors Thunderforest shaded, trails, contour line

ACME Mapper Map layer has no contours, needs to zoom-in a lot; Hile/Bike layer has no elevation shades; Topo has no details

Natural Atlas no details

Thursday, October 29, 2020

Sunday, October 25, 2020

openpilot

comma.ai supported vehicles automated self-driving car, advanced driver-assistance systems

openpilot supported cars Toyota Corolla Hatchback 2019, RAV4 2019, C-HR 2017

openpilot

Monday, September 07, 2020

HVAC air filter ratings

EPA MERV Minimum Efficiency Reporting Values, air filtering
3M Filtrete Microparticle Performance Rating (MPR)vs MERV
Home Depot Air Filter Performance Rating (FPR) system

Heating, Ventilation, and Air Conditioning
Nordic Pure rating comparison MERV, MPR, FPR

HEPA filter air purifier
EPA indoor air quality
EPA wildfires and indoor air quality (IAQ) MERV≥13
Consider purchasing a portable air cleaner or high-efficiency HVAC Filter You may decide to purchase a portable air cleaner or high-efficiency HVAC system filter as part of your preparation in order to help improve your indoor air quality during a wildfire smoke event. If you decide to purchase a portable air cleaner, choose one that is sized for the room in which you will use it. Make sure the portable air cleaner does not make ozone. If you decide to purchase a high-efficiency HVAC filter, choose one with a Minimum Efficiency Reporting Value (MERV) 13 rating, or as high a rating as to your system fan and filter slot can accommodate. You may need to consult a professional HVAC technician to determine the highest efficiency filter that will work best for your system.
Wildfire Smoke Factsheet: Indoor Air Filtration

EPA air cleaners and air filters home
Using a portable air cleaner and/or upgrading the air filter in your furnace or central heating, ventilation, and air-conditioning (HVAC) system can help to improve indoor air quality. Portable air cleaners, also known as air purifiers or air sanitizers, are designed to filter the air in a single room or area. A central furnace or HVAC filter is designed to filter the air throughout a home. Portable air cleaners and HVAC filters can reduce indoor air pollution; however, they cannot remove all pollutants from the air.
Guide to air cleaners in the home

Air Cleaners, HVAC Filters, and Coronavirus (COVID-19)
What kind of filter should I use in my home HVAC system to help protect my family from COVID-19? MERV 13+ or Filtrete 1900/2200 for virus
Mechanical Air Filters 
MERV ≥13, Filtrete 1,900/2,200 are efficient at capturing airborne viruses
MERV 14, Filtrete 2500 filters are preferred

High-efficiency particulate air (HEPA) filters are more efficient than MERV 16 filters.

Saturday, August 22, 2020

理直氣壯

成語,俗諺語 Chinese idioms

得理不饒人, 法利賽人, 正義魔人, 鍵盤法官, 咄咄逼人, 理直氣壯, 偽善, 咄咄逼人, 振振有詞, 替天行道, 

斷章取義,穿鑿附會,牽強附會,望文生義,顧名思義,隻字片語 

stingy 吝嗇 守財奴 小氣鬼 鐵公雞 摳門 精打細算 斤斤計較 一毛不拔 自私自利 占人便宜 貪小便宜 凡事節儉 省錢 

pretentious 自命不凡 

分道揚鑣,形同陌路 

彷徨 猶豫 遲疑 躊躇 hesitate 
困惑 puzzled 迷茫 confused 迷惘 perplexed 
孤獨 不知所措 

Friday, August 14, 2020

COVID-19 Contract Tracing Apps

Wego Countries Without Quarantine

CDC variant proportions new variants 
CDD covid data tracker: new hospital admissions

Covid19 How Test to Treat Works for Individuals and Families

Ritonavir-Boosted Nirmatrelvir (Paxlovid)People with Certain Medical Conditions

Center for Health Security covid-19 Testing Toolkit Types of COVID-19 tests: Antigen and Molecular Tests

NAT Nucleic acid test (nucleic acid amplification tests NAAT): RT-PCR (Reverse transcription polymerase chain reaction) (real-time quantitative rRT-qPCR), RT-LAMP (Reverse Transcription Loop-mediated Isothermal Amplification), CRISPR (clustered regularly interspaced short palindromic repeats)

Biotech company Cepheid lays off 635 in Bay Area, slashes manufacturing staff 
Layoffs Strike Thermo Fisher as COVID-19 Testing Demand Wanes 
Rapid PCR-quality: Behind the high-tech COVID-19 tests you probably haven’t heard aboutCue HealthLucira Pfizer 

COVID-19 rapid antigen test (Rapid antigen test) (lateral flow test)

FDA In Vitro Diagnostics EUAs - Molecular Diagnostic Tests for SARS-CoV-2

COVID-19 Point-of-Care Testing. Pharmacist’s Letter/Prescriber’s Letter

National Institute of Biomedical Imaging and Bioengineering (NIBIB) NIH RADx Tech and ATP programs (RADx Tech 2 Program FAQ)

Point of Care Technology Research Network (POCTRN)RADxRADx Tech II at-home testings

衛生福利部食品藥物管理署 > 業務專區 > 醫療器材 > COVID-19 防疫醫材專區

Sensitivity and specificityConfusion matrix 
false-positive rate = 1 - specificity(true negative/negative) 
false-negative rate = 1 - sensitivity(true positive/positive) 

Sensitivity and Specificity or Positive and Negative Percent Agreement? non-reference standard 

Statistical Guidance on Reporting Results from Studies Evaluating Diagnostic Tests - Guidance for Industry and FDA Staff PPA, NPA, Positive and negative predictive values (PPV NPV value), Agreement changes depending on the prevalence

 

 

Non-Reference Standard

Total

New
Test
A

+

+

 

40

1

41

19

512

531

Total

 

59

513

572

positive percent agreement (new / non ref. std.) = 100% x 40/59 = 67.8%

negative percent agreement (new / non ref. std.) = 100% x 512/513 = 99.8%

overall percent agreement = 100% x (40+512)/572 = 96.5%

CDC: Requirement for Proof of Negative COVID-19 Test or Recovery from COVID-19 for All Air Passengers Arriving in the United States Examples of available NAATs for SARS-CoV-2 include but are not restricted to reverse transcription polymerase chain reaction (RT-PCR), reverse transcription loop-mediated isothermal amplification (RT-LAMP), transcription-mediated amplification (TMA), nicking enzyme amplification reaction (NEAR), and helicase-dependent amplification (HDA)
- The testing procedure must include a telehealth service affiliated with the manufacturer of the test that provides real-time supervision remotely through an audio and video connection.  
Abbott BinaxNow with remote supervision
Ellume with video observation

*Citizen SafeTrace, SafePass App

Alabama GuideSafe

*North Dakota Care19 Alert Diary by ProudCrowd

*Utah Healthy Together COVID-19 +GPS, Cellular

*Virginia COVIDWISE by SprintML

Washington CommonCircle

*Wyoming Care19 Alert Diary by ProudCrowd

Australia COVIDSafe

Singapore TraceTogether

Apple Privacy-Preserving Contact Tracing

Google Exposure Notifications Android Bluetooth 

Virginia North Dakota Wyoming Alabama Washington Pennsylvania

Variation in False-Negative Rate of Reverse Transcriptase Polymerase Chain Reaction–Based SARS-CoV-2 Tests by Time Since Exposure day 5 symptom, day 8-9 testing 

Wednesday, July 01, 2020

Tuesday, May 19, 2020

Worrying

杞人憂天
庸人自擾
矯枉過正

Worry

Thursday, April 16, 2020

Electric Bike

Electric bicycle e-bike, Gates Carbon Drive Belt - Priority Current E-Bike mid-drive motor, 5 gears Shimano sealed hub shifter, dual piston hydraulic disc brakes, size small 

Ford Bronco Electric Mountain Bike class 2 with throttle speed 20mph, class 3 assisted top 28mph, 750W power, 85Nm 63lb-ft torque, 48V 15Ah 720 Wh battery, 68 lbs, mid-drive motor (not hub), 9-speed mechanical shifting, hydraulic caliper brakes 

Giant Bicycles Explore E+ 4 GTS

BESV CF1

Giant Cycling Expedition E+
    Fast E+
    Fast SR E+

達瑞 Besv JF1

Merida Bikes Espresso 600 EQ

赫速 Hasa Mountain Bike

電動(輔助)自行車合格產品查詢
環保署機車汰舊換新補助措施
低污染車輛補助 電動輔助自行車

Tuesday, January 28, 2020

Surgical Masks and Respirators

NIOSH air filtration rating
Guide to Face Mask Selection and Use N95 ATSM F2100

***N95:
FDA Masks and N95 Respirators, for use by the public, 3M 8670F 8612F, Pasture F550G A520G
NIOSH-Approved Particulate Filtering Facepiece Respirators
FDA approved Surgical N95 Respirators

3M Health Care Particulate Respirator and Surgical Masks 1804, 1804S small, 1860, 1860S, 1870+
3M Infection Prevention Surgical Masks and Respirators
3M Health Care Particulate Respirator and Surgical Mask 1860, N95
3M Aura Health Care Particulate Respirator and Surgical Mask 1870+, N95
3M VFlex Healthcare Particulate Respirator and Surgical Mask 1804, N95
Kimberly-Clark N95 Particulate Filter Respirator and Surgical Mask, Fluid Protection, Pouch Style 46827
CardinalHealth N95 Flat Fold Respirator Masks

***Surgical mask: sterile has ties and no loop, procedure mask has ear loops
ASTM Mask Standards level 2 is good, level 3 has the same BFE, PFE as level 2
BFE (Bacterial Filtration Efficiency) at 3.0 micron > 98%
PFE (Particulate Filtration Efficiency) at 0.1 micron > 98%
FDA Establishment Registration & Device ListingProduct Code: QKR, Face Mask (Except N95 Respirator) For General Public/Healthcare Personnel Per Iie Guidance

Cardinal Health Infection Control Facial Protection Procedural Masks Level 1 and Level 3

Fluid-resistant: 120 mmHg or 120 mmHg
3M High Fluid Resistant Procedure Mask, Earloop 1840 160mmHg
Medline Fluid-Resistant Procedure Face Masks BFE>99% PFE>99% 120mmHg

3M Earloop Procedure Face Mask 1820 BFE>99%, PFE>98%
CVS Procedural Face Masks with Earloops BFE>99%, PFE>98%, 80 mmHg

KIMBERLY-CLARK* LITE ONE* PROCEDURE MASKS 62356
KIMBERLY-CLARK* PROCEDURE MASKS, PLEAT STYLE 47080

What is Non-sterile mask CE certification and FDA certificate
Sterile Vs Non-Sterile Mask? What is Non-Sterile Mask?