Daim ntawv thov suab paj nruag

Nyob rau hauv lub renovation ntawm Golden Hall nyob rau hauv Vienna, acoustic master siv lub maj perforated PVC board los tsim lub suab los nyob rau hauv lub xyoo pua 19th . 312 conical micropores yog raug faib rau ib square meter, thiab lub intermediate zaus reverberation lub sij hawm ntawm 340Hz yog tswj ntawm 1.8 vib nas this 0.05. Laser cuam tshuam kev ntsuam xyuas qhia tau hais tias qhov sawv yoj lub zog yog attenuated los ntawm 43% thiab lub overtone clarity ntawm violin tau txhim kho mus rau 96 ntsiab lus. Tus neeg ua yeeb yam xav tsis thoob ntawm qhov tsis pom lub suab tswj lub taub hau - lub thickness ntawm daim hlau nyob rau hauv ntau qhov chaw maj mam hloov los ntawm 5mm mus rau 22mm, tsim ib tug acoustic yoj taw qhia array. Thaum ntxuav, nitrogen yog siv los tshem tawm cov plua plav kom tsis txhob muaj fiber ntau residue, uas keeb kwm daws teeb meem kev laus ntawm lub suab- nqus cov ntaub ntawv. Lub voj voog acoustics tau soj ntsuam qhov no yog "qhov kev siv ntau tshaj plaws ntawm cov khoom siv hauv tsev txij li Sabine formula" thiab yeej qhov khoom plig tshwj xeeb ntawm Grammy rau qhov chaw tsim khoom.

Durability

Tuam Tshoj Antarctic Kunlun Chaw nres tsheb innovatively saws xya- txheej txheej PVC rwb thaiv tsev board kom lub alarm ntawm qhov kub thiab txias ntawm 22℃nyob rau hauv huab cua txias ntawm -89℃. Cov thev naus laus zis tseem ceeb nyob hauv kev sib xyaw ntawm airgel interlayer thiab lub tshuab nqus tsev aluminized reflective zaj duab xis, thiab cov thermal conductivity tsawg li 0.008 W / (mk). Lub phaj yog embedded nrog optical fiber sensor network los saib xyuas cov kev ntxhov siab thiab deformation ntawm 2000㎡ qab nthab nyob rau hauv lub sij hawm, thiab cov lus teb ceev ntawm snowstorm ceeb toom yog zoo dua mus rau 3 vib nas this. Pab neeg ntoj ke mus ncig pom tias cov fluorescent txheej txhim kho cov khoom siv tu kom zoo los ntawm 63% nyob rau hauv ib puag ncig hmo ntuj, thiab poob nthav tau pom lub aurora dynamic projection muaj nuj nqi. Tsawg-kub curing nplaum tau siv thaum lub sijhawm teeb tsa, thiab lub zog sib txuas tseem mus txog 18MPa ntawm -50℃. Lub koom haum Norwegian Polar Research Institute tau yuav cov thev naus laus zis no, thiab tshwj xeeb tshaj yog txaus siab rau nws qhov kev tiv thaiv dej khov ntug puncture-2 kg ice cone ntog los ntawm 10 meters, tsuas yog 0.3 hli dent.

Kev tiv thaiv

Hauv Okinawa, Nyij Pooj, cua-cov ntaub ntawv pov thawj lub ru tsev tau tsim nrog cov ntaub ntawv PVC corrugated, uas tau ua tiav tiv thaiv 17- cua daj cua dub "Nanmadu". Aerodynamic simulation qhia tau hais tias qhov nkhaus nto tsim txo cov cua siab load rau 27% ntawm lub tiaj phaj. Cov duab nco alloy hinges yog embedded nyob rau hauv txhua lub rooj tsavxwm, thiab thaum cua ceev tshaj 40m / s, lub diversion qhov tau qhib, thiab tag nrho viav vias amplitude ntawm lub tsev yog txo los ntawm 83%. Cov neeg nuv ntses tau pom tias cov phiaj xwm qub uas tau muab tshem tawm tuaj yeem hloov pauv mus rau hauv kev tiv thaiv - cov kab rov tav, uas ua rau lawv lub cev ruaj khov hauv 6-meter yoj high school. Tsoomfwv txoj kev pab nyiaj txiag tshwj xeeb tau teev tseg tias cov tsev nyob uas siv cov thev naus laus zis no tuaj yeem tau txais 30% kev pov hwm kev puas tsuaj txo nqi. Cov kws tshawb fawb txog cov ntaub ntawv tab tom txhim kho bio-based version ntawm seaweed, uas tuaj yeem paub txog kev degradation hauv hiav txwv rau peb xyoos tom qab kev khawb.

Kev siv ecological

Lub tsev hav zoov ntsug hauv Dubai tau hloov kho PVC qab nthab rau hauv huab cua purification matrix. Txhua square meter ntawm lub rooj tsavxwm yog embedded nrog 300 micro photocatalytic reactors, uas decompose NOx pollutants los ntawm 1.2g ib hnub twg, thiab cov efficiency yog sib npaug rau 30 tus neeg laus birch ntoo. Lub tshuab ntse kho qhov dej ntawm qhov dej raws li qhov siab ntawm PM2.5, thiab kev ua kom huv ntawm cov hnub los nag nce los ntawm 340%. Cov neeg nyob hauv lub xov tooj ntawm tes APP tuaj yeem tshawb xyuas "cov txiaj ntsig ntawm kev ua kom huv ntawm huab cua" nyiaj siv ua haujlwm, thiab cov ntsiab lus carbon tuaj yeem sib pauv ncaj qha rau cov nqi vaj tse. Cov kws tsim qauv tsim qauv tau ua tiav qhov kev ua tiav hauv 37-meter kab-dawb cantilever. Qhov tsis pub leejtwg paub yog tus tsim ntawm bionic tav, thiab khoov modulus yog 18 npaug ntawm cov phaj zoo tib yam. Thaum hmo ntuj hom pib, txheej txheej ntawm fluorescent hyphae nthuav tawm cov nyhuv dynamic milky txoj kev, thiab lub teeb muaj kuab paug Performance index yog txo los ntawm 62% piv nrog ib txwm teeb pom kev zoo.