Kimanta Abubuwan Tallafawa Kayan Katifa

Marubuci: Synwin- Katifa na al'ada

Yanayin tuntuɓar tsakanin katifa da jikin mutum zai shafi jin daɗin jin daɗin jikin ɗan adam kuma yana ƙara shafar ingancin bacci. Zai fi zama dalilin kai tsaye sanadin ciwon majinyata ga marasa lafiya da ke kwance a gadon lokaci mai tsawo. A cikin 1998, Peter da Avalino [1] sun yi nazarin katifu ta amfani da gwajin matsa lamba na jikin mutum da kuma kimanta ta'aziyya na zahiri, kuma sakamakon ya nuna cewa katifan da aka gwada sun sami kwanciyar hankali fiye da shimfidar katako. A cikin 1988, Shelton [2] ya ba da shawarar ma'aunin matsa lamba (Pindex) ta hanyar babban adadin bincike na bayanai lokacin da aka haɗa matsakaicin matsakaicin matsa lamba, matsa lamba, girman girman matsin lamba da sauran dalilai, kuma idan aka kwatanta shi da tasirin gwajin lalata katifa, yana nuna kyakkyawan aiki. daidaito mai kyau.

A cikin 2000, Defloor[3] ya gudanar da bincike kan tasirin wuraren barci daban-daban akan matsa lamba na katifa. Binciken ya nuna cewa 30 ° Semi-setting matsayi da matsayi mai sauƙi yana da mafi ƙarancin matsa lamba a kan katifa, yayin da 90 ° gefen kwance yana da matsananciyar matsa lamba akan katifa. Mafi girma, wanda kuma aka gano yana amfani da madaidaicin katifa mai kumfa, ya rage matsa lamba da kashi 20 zuwa 30 cikin ɗari. A cikin 2000, Bader [4] ya gudanar da bincike kan alakar da ke tsakanin ingancin barci da taurin saman gado, kuma ya gano cewa mutane da yawa sun fi dacewa da katifa mai laushi fiye da katifa mai ƙarfi. A cikin 2010, Jacobson et al. [5] ya gudanar da bincike akan marasa lafiya da ƙananan ciwon baya ko taurin kai. Binciken ya gano cewa hanyar sadarwar jikin mutum yayin barci yana da tasiri ga ingancin barci. Maye gurbin katifa mai matsakaicin matsakaici zai iya inganta rashin jin daɗi na barci kuma ya sauƙaƙa kugu mai haƙuri. Ciwon baya da taurin kai.

A cikin 'yan shekarun nan, masanan kasar Sin sun kara yawan bincike kan katifa, kuma har yanzu ana ganin babban jiki a dangantakar da ke tsakanin kwanciyar katifa, ingancin barci, kaurin katifa, da kuma kayan masarufi. A cikin 2009, Li Li et al. [6-7] auna ma'aunin rarraba matsi na jikin mutum ta hanyar canza kauri na soso a saman katifa, kuma ya yi cikakken bincike na zahiri da haƙiƙa, kuma ya gano cewa kauri na soso yana da tasiri mai mahimmanci akan kwanciyar hankali na katifa. A cikin 2010, an zaɓi nau'ikan katifa na soso daban-daban, kuma an yi nazarin tasirin nau'ikan soso akan gabaɗaya da kwanciyar hankali na jikin ɗan adam kuma an kwatanta su.

A cikin 2014, lokacin da Hou Jianjun [8] ya yi nazari kan tasirin kayan katifa kan halayen jikin mutum a cikin matsayi, ya gano cewa wurin hulɗar da ke tsakanin katifa da jikin ɗan adam yana da girma, kuma dogon lokaci yana iya haifar da gajiyar ɗan adam. Za a iya gani daga abubuwan da ke sama cewa binciken kan katifa ya fi ta'allaka ne a cikin gwajin rarraba matsi, kuma ya iyakance ga wasu kayan. Hanyoyin kimanta manufa don tasirin tallafin kayan katifa ba su da yawa.

A cikin wannan takarda, an zaɓi kayan katifa 6 na yau da kullun, kuma ana yin gwajin matsawa a cikin kauri da gwajin rarraba matsi na jikin ɗan adam. Tasirin tallafi na kayan katifa. 1 Hanyar gwaji An zaɓi ɗalibar koleji mace mai lafiya don gwajin. Batun ba shi da tarihin cututtukan musculoskeletal, yana da shekaru 24, yana da tsayi 165 cm, kuma yana auna kilo 55. Abubuwan da aka zaɓa a cikin wannan gwaji sune soso na yau da kullun, kumfa ƙwaƙwalwar ajiya, soso a tsaye, nau'ikan kumfa iri biyu daban-daban da kayan 3D. An gwada aikin matsi na kayan katifa ta amfani da na'urar gwaji ta Amurka Instron-3365, wacce aka fi amfani da ita don tashin hankali. Gwajin tsawo.

Domin gwada da matsawa Properties na katifa kayan, biyu na musamman sanya 10cm × 10cm baƙin ƙarfe faranti an haɗe zuwa babba da ƙananan chucks bi da bi don gane da matsawa gwajin. Ana yanke kayan katifa a cikin silinda mai diamita na 6.6mm, an sanya shi a kan farantin gwaji na ƙasa, farantin ƙarfe na sama a hankali yana matsa kayan katifa zuwa ƙasa, kuma yana dakatar da matsawa lokacin da kauri ya kai 5mm, kuma yana rikodin matsin lamba daga farkon matsawa zuwa ƙarshen gwajin. . Gwajin rarraba matsa lamba na jiki yana ɗaukar tsarin gwajin jin daɗin sutura na Kamfanin Japan AMI.

Na'urar tana amfani da firikwensin matsa lamba irin na balloon, wanda ke tattara bayanai kowane 0.1 yayin gwajin. Don gwajin rarraba matsa lamba na jiki, an zaɓi sassan 6 na kashin mahaifa na bakwai na mahaifa, kafada, baya, kafa, cinya da maraƙi don gwaji, kuma an haɗa na'urori masu auna iska mai diamita na 20 mm zuwa kowane wurin gwaji. Mai gwadawa yana kwance akan katifa, kuma lokacin da bayanan matsa lamba suka tsaya, ana yin rikodin bayanan na mintuna 2.