An anchoring sub used in combination with hydrocarbon exploration and production tools, such as perforating guns and logging devices, within a wellbore. At least one of the inductively excitable bodies of the electrical machine is substantially assembled from receiving bodies suitable for receiving at least two winding carriers in an operationally fixed manner. In some embodiments, at least one fluorinated alkyl of the salt has a chain length of from 1 to 8 or, more specifically, between about 2 and 8. The application server determines whether to bypass the received media from entry into a de-jitter buffer based at least in part on the determined number, wherein the de-jitter buffer is configured to queue media from session participants for mixing by the application server during the group communication session. Sufficient water is present to dissolve the hydrochloric acid and the amino acid. Each of the second light-blocking films is electrically connected to a corresponding one of the reflective electrodes, and is disposed to cover at least a portion of spacings between the corresponding one of the reflective electrodes and ones of the reflective electrodes adjacent thereto.