SEIS: Insight’s Seismic Experiment for Internal Structure of Mars

By the end of 2018, 42 years after the landing of the two Viking seismometers on Mars, InSight will deploy onto Mars’ surface the SEIS (Seismic Experiment for Internal Structure) instrument; a six-axes seismometer equipped with both a long-period three-axes Very Broad Band (VBB) instrument and a three-axes short-period (SP) instrument. These six sensors will cover a broad range of the seismic bandwidth, from 0.01 Hz to 50 Hz, with possible extension to longer periods. Data will be transmitted in the form of three continuous VBB components at 2 sample per second (sps), an estimation of the short period energy content from the SP at 1 sps and a continuous compound VBB/SP vertical axis at 10 sps. The continuous streams will be augmented by requested event data with sample rates from 20 to 100 sps. SEIS will improve upon the existing resolution of Viking’s Mars seismic monitoring by a factor of ∼ 2500 at 1 Hz and ∼ 200 000 at 0.1 Hz. An additional major improvement is that, contrary to Viking, the seismometers will be deployed via a robotic arm directly onto Mars’ surface and will be protected against temperature and wind by highly efficient thermal and wind shielding. Based on existing knowledge of Mars, it is reasonable to infer a moment magnitude detection threshold of Mw ∼ 3 at 40◦ epicentral distance and a potential to detect several tens of quakes and about five impacts per year. In this paper, we first describe the science goals of the experiment and the rationale used to define its requirements. We then provide a detailed description of the hardware, from the sensors to the deployment system and associated performance, including transfer functions of the seismic sensors and temperature sensors. We conclude by describing the experiment ground segment, including data processing services, outreach and education networks and provide a description of the format to be used for future data distribution

Quality in the product conformity aspect

The European system of ensuring safety of the product imposes on producers and importers of machines, equipment and elements of safety an obligation to provide the recipients with safe products. Characteristic of CE mark and its meaning for producers was present in the chapter

Quality of polish post services in the opinion of customers

The postal services market in Poland in recent years opened up to competition. Gradually was reduced an area of services reserved for the public operator and at the same time increased market competition. Opening of the market forced the Polish Post to face the market competition in all areas of its business. In view of these changes of particular importance becomes the need to adopt an approach aimed to meet the needs of consumers, in which the quality of the offer will be a priority item. The purpose of this article is to present the results of studies on the quality of the offer of Polish Post in the opinion of its customers

The meaning of physical activity in the quality of life management aspect

Quality of life is an ambiguous concept with a medical, sociological and economic dimension, as well as psychological, the most subjective one. Physical activity is considered one of the most important elements of a healthy lifestyle and a factor that determines the physical and mental health of an individual. The article presents the issue of physical activity in the aspect of quality of life management. It was found that respondents notice a very large relationship between sport and quality of life. The authors showed that it is very important in the quality of life management aspect not only to promote physical culture, but also to develop the habit of practicing it