A comparison of geochemical features between the Ch9 shale and the organic-rich Ch7 shale is made to evaluate the factors controlling organic matter (OM) enrichment of the Ch9 shale. The results show that the Ch9 shale has good hydrocarbon potential, and terrestrial OM is important component ...
HIV-1 infection in humans is a dynamic process and may not be adequately characterized by strict standards and definitions. Therefore, clear and accurate definitions, with a measure of flexibility, may be more beneficial for disease progression research efforts. Past studies have often overestimated ...
At present, there is little research on fuzzy multilevel control charts. Hou et al. [1–3] proposed constructing a fuzzy function of product quality by quality expert score, drawing a control chart with a fuzzy function, and monitoring the fuzzy degree by using possibility measures and necessit...
It's proposed that shale gas “sweet spots” must be characterized by high gas content, excellent frackability and good economy etc. The key indicators to determine the shale gas enrichment interval and trajectory of horizontal wells include “four highs”, that is high TOC (>3.0%), high ...
These two conditions, which are referred to as the “true” conditions, combine with two “false” conditions to describe all possible outcomes of a facial recognition system:展开表 ConditionDefinition True positive or correct match The person in the probe image is enrolled and they are ...
In summary, the key aim of this research is (i) to investigate how the impact of a health symbol is moderated by pre-existing beliefs about a product’s overall healthiness, based on the presence of a front-of-package taste claim (e.g., creamy taste), product price, and on whether ...
This paper describes a recent landslide event, which occurred at Liucheng village in Tianquan County, Sichuan Province, China, on July 15, 2018. The Laochang landslide described in this research is an outstanding and valuable reference for understanding the characteristics of such kind of landslides...
This article is a study of risk assessment of trees with hollows, cavities and fruiting bodies for the improvement of the management and protection of urban trees growing along pedestrian routes. 317 trees were examined using TRAQ risk classes, VTA and I
2. Distribution of shale gas in China 3. Geological characteristics of shale gas in China 4. Progress in shale gas exploration and development in China over the past five years 5. Research progress in shale gas geologic theory in China 6. Shale gas exploration directions in China 7. Conclusio...
Student attrition poses a major challenge to academic institutions, funding bodies and students. With the rise of Big Data and predictive analytics, a growing body of work in higher education research has demonstrated the feasibility of predicting studen