نتایج جستجو برای: square domes
تعداد نتایج: 130242 فیلتر نتایج به سال:
Mons Rümker is a large volcanic complex in Oceanus Procellarum on the Moon and is a candidate landing site for China’s Chang’E-5 sample return mission. We conducted a comprehensive study of the topography, geomorphology, composition, and stratigraphy of the Mons Rümker region with multisource remote sensing data in order to better understand the geology of the region and provide further support...
A dynamical theory of geophysical precipitation pattern formation is presented and applied to irreversible calcium carbonate (travertine) deposition. Specific systems studied here are the terraces and domes observed at geothermal hot springs, such as those at Yellowstone National Park, and speleothems, particularly stalactites and stalagmites. The theory couples the precipitation front dynamics...
We studied double superconducting (SC) domes in LaFeAsO(1-x)H(x) by using 75As and 1H nuclear-magnetic-resonance techniques and unexpectedly discovered that a new antiferromagnetic (AF) phase follows the double SC domes on further H doping, forming a symmetric alignment of AF and SC phases in the electronic phase diagram. We demonstrated that the new AF ordering originates from the nesting betw...
The special-shaped tank dome of a launch vehicle is large, thin-walled, curved structure that difficult to form using the conventional center-restraint spinning method. This study proposes two-step marginal-restraint mandrel-free method for forming large domes. finite element analysis results indicate larger roller fillet radius and feed ratios lead upper convex angle minimum thickness value bo...
Ethnomathematics is a mathematics learning approach with cultural media around students. Therefore we need the right in process to present that close student life so students have high motivation mathematics. This study aims determine of making mosque domes and ethnomathematics-based by modeling domes. uses qualitative research ethnographic methods. Respondents were dome makers, vault designers...
In this work we extended the study of genes controlling the formation of specific differentiation structures called "domes" formed by the rat mammary adenocarcinoma cell line LA7 under the influence of DMSO. We have reported previously that an interferon-inducible gene, rat-8, and the beta-subunit of the epithelial sodium channel (ENaC) play a fundamental role in this process. Now, we used a pr...
In the present study, a tough tetragonal zirconia polycrystalline (Y-TZP) material was developed for use in high-speed infrared windows and domes. The influence of the preparation procedure and the microstructure on the material's optical properties was evaluated by SEM and FT-IR spectroscopy. It was revealed that a high transmittance up to 77% in the three- to five-micrometer IR region could b...
Domes and their proportions play an important role in the visual aesthetics of Islamic architecture. Despite the importance of this element of Iranian architecture, no significant studies have been conducted on its geometric proportions. Previous researches are mainly concerned with their history, drawing methods, formal typology and structural-climatic characteristics. The first question of...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید