A system for removing H2S from methane which includes providing at least one biofilter cartridge that functions to sustain microbial activity which will function to consume H2S contained in a stream of methane gas. The method can include receiving a message from a mobile device configured to connect to a mobile device network, determining the words from the digital image information using optical character recognition, indexing the digital image based on the words, and storing the digital image for later retrieval of the digital image based on one or more received search terms. The cam includes central hole configured to receive the pivot pin shaft. The first bumps connect the first chip and the second chip. At the same time, a thermo chemical treatment may be performed to provide superior surface conditions of the sensitive dielectric material and also to suppress carbon depletion, which may conventionally result in a significant variability of material characteristics of sensitive ULK materials. In certain aspects, the invention relates to methods of treating a tumor induced by an oncogenic virus, methods of killing or inhibiting a squamous cell carcinoma, and methods of inhibiting the replication of a virus, by administering artemisinin-related compounds.