Single-breath diffusing capacity of the lung for carbon monoxide (D(LCO)) is a common pulmonary function test that measures the ability of the lung to exchange gas across the alveolar-capillary interface. D(LCO) testing is used to narrow the differential diagnosis of obstructive and restrictive lung disease, to aid in disability and transplant assessment, and to monitor medication toxicity. Th...

References Advantages of FTTx and PON Components of a PON System PON Installation PON Specifications PON Measurement Parameters PON Troubleshooting Selecting the Right Testing Instrument Conclusion Testing fiber-to-the-X (FTTx) networks that include passive optical network (PON) architectures presents unique challenges to service providers. During installation, the network must meet certain sta...

This article investigates possible alternatives for soil compaction testing to potentially replace the standard testing equipment by examining all the testing methods for reproducibility and repeatability. This study found that coefficients of variation and standard error to the mean produced the best results that fit with previous studies.