Basic Elektrical Repair

Vài năm gần đây ở khu tôi sống (Hưng Yên) nhiều nhà xưởng làm đồ Inox về lập ở thôn. Hỏi qua về quy trình làm thì có khâu bể nhúng là nghe nói độc hại nhất. Nước thải nghe một số người bảo qua một ao bèo sau đó có thể là ra mương luôn. Trong bể nhúng thành phần là gì mình không rõ, tuy nhiên như nhiều ngành nghề công nghiệp khác, lo ngại về nước thải, khí thải luôn thường trực. https://www.hoachat.vn/quy-trinh-danh-bong-dien-hoa-inox/ http://sdvina.vn/vn/7-cong-doan-trong-quy-trinh-san-xuat-inox_485.html Sẽ tìm hiểu kĩ hơn và thử phương án hạn chế tác động. Không hy vọng mấy về giải pháp triệt để, tuy nhiên đầu tiên phải hiểu vấn đề, từ đó sẽ biết nên làm gì (From it reveal the action) .  Brick fume burn with tire power seem toxin. Try get some sample then burn or try capture real smoke to investigate. Hope high temperature burn make it waste less toxic. https://semiengineering.com/entities/cadence-design-systems/

https://freedom251.com/best-laptops-under-800/ I have bad experience with Asus Laptop with dedicated Card, I remember the A52JT model (one of my bro bought in Taiwan). It have GPU issue, it too hot and lead to mobo dead (no alternative graphic), so only option is replace mobo with Chinese made (no GPU obviously).  And I see mobo design seem not good, too little heat sink. May be it's OK in Taiwan climate but in VN hot summer it's disaster. But I assume that this is a design failure.  => Vivo with GPU => big No ? https://www.youtube.com/c/Electronicsrepairschool/videos Due to highly share of Lenovo and Hp PC/Laptop so there are more chance you got an issue or user reporting about these big brand. Especially on Lenovo since they have many product line for cheap low end product. See Electronic repair school channel, most case are with Lenovo, then HP. I will do some research and report summary of which laptop brand is mostly go to repair shop from this channel later. https:...

https://en.wikipedia.org/wiki/Wireless_powerline_sensor https://www.jameco.com/Jameco/workshop/jamecofavorites/non-contact-AC-voltage-detector.html https://www.mdpi.com/1424-8220/19/8/1812 https://www.bosch-professional.com/gb/en/community/category/gsb-180-li-vs-gsb-18-v-ec/14461550-t#/main More important "soft" torque is higher in both the old and new GSB 18 V-EC models compared to the GSB 180-LI.  The max torque is a hard joint, for example if there are two similar drills, one with a light plastic chuck and the other with a "heavier" metal. The metal chuck drill usually has a higher "hard/max" torque.   Also the weight differences between the carbon brushed electric motor and brushless. ( rotating masses ) I would buy a cheaper model if the price difference is significant.  https://www.bosch-professional.com/gb/en/community/category/why-the-different-professional-range/385576-t#/main Very confusing model name / brand code https://www.youtube.com/watch?v=...

    My friend Apple Watch Series 4 have boot loop problem. It turn out that power button shorted or something wrong with it. After disconnect power button cable (that come with Mic...), the watch turn on normally. Apple Watch power button part replacement. I can not found or not have enough time to order replacement part, so I let the watch work without power button (and Mic too). The attempt on repair this minuscule button is for diagnostic only, since it is hard to find replacement part (recently I fond some but not all can by ordered). Since I need this power button to do hard reset (this require both Crown button and power home button press together as I remember). https://www.deviceparts.com/power-button-flex-cable-for-apple-watch-series-4-40mm-ori-r.html => deviceparts.com seem only for Shop/Whole store buy or personal buyer but with minimum $150 order (without shipment :( ? ). https://www.impextrom.com/en/power-switch-flex-for-apple-watch-4-gps-wifi-a1977-40mm-p10000...

https://ecee.colorado.edu/~bart/book/book/chapter7/ch7_3.htm https://cnx.org/contents/6dHkc9zc@1.48:GYAoAVIF@8/6-5-Equipotential-Surfaces-and-Conductors https://semiengineering.com/why-euv-is-so-difficult/ https://sea.pcmag.com/feature/19648/the-promises-and-challenges-of-euv-at-globalfoundries https://www.extremetech.com/computing/162376-7nm-5nm-3nm-the-new-materials-and-transistors-that-will-take-us-to-the-limits-of-moores-law Chenming Hu - Taiwanese-American - Father of FinFET.

https://batteryuniversity.com/learn/article/charging_lithium_ion_batteries https://www.industrial-electronics.com/switching-power-supply_1-8.html https://ehs.stonybrook.edu/programs/laboratory-safety/laboratory-equipment/soldering https://sciencing.com/happens-resistor-burns-up-8556222.html https://www.leakymosfet.com/blogs/news/tips-02-trouble-shooting-no-power-issue-in-laptop-motherboard http://kythuatphancung.vn/download/lenovo-g470-g570-compal-la6751p-la6753p-laptop-schematics.html https://laptopblue.com/threads/kinh-nghiem-ve-do-main-chap-nguon-dau-vao.31067/ http://osc.vn/dinh-nghia-ve-nguon-dau-vao-mainboard-laptop-a329.html https://www.acmesystems.it/pcb_microsd https://m.phys.org/news/2018-06-recycling-plasticjapan-style.html https://divisare.com/projects/295992-rocco-design-architects-bamboo-pavilion https://en.proft.me/2018/04/9/how-add-app-purchase-your-android-application/ https://www.eevblog.com/forum/beginners/measuring-esr-of-small-capacitors/ https://superuser.com/ques...

https://blog.muabannhanh.com/tu-van-chon-loai-thiec-han-chat-luong-de-tao-nen-moi-han-dep-va-ben/88499 https://tiki.vn/thiec-han-asahi-60-06mm-250g-p6681815.html?spid=7611985&utm_source=google&utm_medium=cpc&utm_campaign=SEA_NBR_GGL_PLA_DTP_ALL_VN_ALL_UNK_UNK_C.ALL_X.1057274772_Y.54169762056_V.7611985_W.DT_A.877516657142 This maersk (mess :) Oh some 'bad' experience ab this. https://tinhte.vn/thread/kinh-nghiem-mua-iphone-cu-va-cach-test-may-14-buoc-tu-ga-hoa-cao.2683033/ https://www.ntmobile.vn/bo-cay-ss-008 https://www.ntmobile.vn/choi-2-dau-ss-022 https://www.ntmobile.vn/bo-dao-ss-101c https://www.ntmobile.vn/panh-ss-st-14-thang https://vi.aliexpress.com/item/32963867651.html alob reaction cool :) l*en th*en / rac ruoi :) simple taxomy / category