The most common sterilization techniques used in the last thirty years have been autoclaving, glass-bead sterilization for 45 s at 240°C, UV light at 240–280 nm, laser sterilization, and exposure to glutaraldehyde. The most commonly used system in endodontics is autoclaving. The authors ...
The most significant aspect in the development of safe and effect sterilization techniques was the recognition of the presence of moisture in the killing of microorganisms. Most microorganisms contain sufficient moisture so that moderate heat alone, e.g., 80°-100° C., will destroy the microorgani...
Chang JH, Chang Chien SW, Di Dong C et al (2019) The coinage refractory wastewater treated by electrocatalytic-membrane process (ECMP) integrated with chemical- or electro-coagulation techniques. Process Saf Environ Prot 125:182–188. https://doi.org/10.1016/j.psep.2019.03.015 Article CAS ...
In another approach, ethylene oxide, ozone and peroxide gas sterilization techniques have been used. In particular, pharmaceutical formulations may have a great deal of sensitivity to damage from heat and pressure, leaving radiation as an option for sterilization of these compounds. However, radiation...
Improved filter manufacturing techniques eventually eliminated these defects. 最初由于海绵状迷宫式系统的同质性及考虑到其可能会干扰“大孔”,此外还有折叠,焊接或 膜之间的粘附引起的滤筒缺陷,高压灭菌过程中的密封缺陷和损坏导致采用了多层膜。最近 研发的完整性测试设备能进行精确测量以评估缺陷。改进的过滤器生产...
This method of formulation and mixing of reactive silanols, combined with the surface cleaning and application methods described herein allows surface treatment by standard paint application techniques or by dipping articles into reactive silanol sols and film bonding and curing at ambient temperatures. ...
In fact, the aforementioned conventional sterilization techniques have been developed and employed because they do not involve the use of a high temperature. Against the above background, it has now been found that wet-heat treatment at 105° to 140° C. can be applied to the sterilization ...
sterilization usually requires the use of "wrapped packs" which necessitate an increase in the number of instruments needed by an office; and the use of "wrapped packs" also lends itself to careless techniques in that packs are often broken into to retrieve one needed instrument if complete pack...
chromosomeclassification, established in 1959, identified the chromosomes by their length and the position of thecentromeres. Since then the method has been improved by the use of special staining techniques that impart unique light and dark bands to each chromosome. These bands permit the ...
techniques. Firstly, the SADT was applied for describing the HSP as a hierarchy of activities and functions. Secondly, FMEA was used as an assessment risk step to determine which activity processes needed careful attention. Thirdly, CEA was used as a tool to help identify all the possible ...