Interestingly, the age distribution of mortality by COVID-19 (the distribution of the proportion of deaths per age group among all deaths), is similar between Italy, Japan, and Spain, even though the number of deaths are quite different among them23–25 (Fig. 1). The reported ...
s habits of citation would differ radicallybetween these two groups of works: on the basis, that is, of the sheerdifference in the number of citations of earlier literature in each group – thefrequency of citations in theMoraliagreatly outweighs that inLives–and ofthe fact that many ...
Landsat NDVI appeared to be dominated by the signal from the interspace and was insensitive to subtle changes in the pinyon and juniper tree canopy. However, for short-statured sagebrush shrub and meadow communities, there was good agreement between the phenocam and Landsat NDVI as reflected in ...
It is a traditional Andean crop that grows at altitudes between 3500 and 4500 m above sea level, in the central region of Peru [1]. Maca is also widely known as "Peruvian Ginseng," and is prized for its nutrient component specificity, which gives it a long history of cultivation and ...
Being selected as the winning design by the Army later that year, the Sikorsky S-70 was ordered into production under the designation UH-60 and receiving the official nickname “Black Hawk”. After the first units rolled off the assembly line, the Black Hawk entered service with the Army in...
The ACH50 values were estimated to be between 1.4 h−1 and 12.4 h−1. There was a relatively weak correlation between ACH50 and the age of housing units (R2 = 0.40). The units did not comply with the airtightness requirement for the Passivhaus standard, which states that ACH50 ...
Therefore, Shi [26] designed a correction model based on unknown nodes in which the unknown nodes use their own correction coefficients, and a dynamic weighted DV_Distance localization algorithm is proposed using the ratio of actual Euclidean distance to accumulated hop distance between anchor nodes....
(H2): Innovative environment has a positive effect on technology innovation, while regional differences and temporal variations of effect size exist. There are many arguments about the relationship between enterprise scale and innovation efficiency [35,36]. For instance, Pavitt, Robson and Townsend (...
The instantaneous opening speed of the relief valve spool reaches 15.7 m/s, and the hinge point between the top beam and the column is most sensitive to the hysteresis effect (impact coefficient increases by 0.63). Keywords: hydraulic support; rotary impact; dynamic response; mechanical-hydraulic...
The MRR waveguide consists of a ring and a straight waveguide that interact in the presence of light propagation, provided that the distance or gap between them is small, usually in micro or nanometer sizes [4,5]. They are highly sought after due to several advantages such as fast ...