“材武”及其同类词的训释

"材武"一词,《汉语大词典》释义有误,这个词由主谓词组发展而来,经历了"人材勇武"、"有武艺"到"有武艺者"和"武艺"这样的词义发展过程,其构成特点是"材"后添加描绘性词素"武"。语言中由"材(才)"与描绘性词素构成的词很多,它们的词义发展历程大致与"材武"相同,而《汉语大词典》在释义上多有错误或未及之处,文章重新整理并训释了这些词。

Fatigue behavior of basalt-aramid and basalt-carbon hybrid fiber reinforced polymer sheets

In order to study the fatigue failure mode and fatigue life laws of basalt-aramid and basalt-carbon hybrid fiber reinforced polymer （ FRP ） sheets, fatigue experiments are carried out, considering two hybrid ratios of 1 ： 1 and 2：1 under different stress levels from 0.6 to 0.95. The results show that fractures occur first in carbon fibers or aramid fibers for the specimens with hybrid ratio of 1： 1, namely B1A1 and B1C1, while a fracture occurs first in basalt fibers for the specimens with a hybrid ratio of 2： 1, namely B2A1 and B2C1. The fatigue lives of the hybrid FRP sheets increase with the improvement of the content of carbon fibers or aramid fibers, and the influence of the carbon fibers content improvement to fatigue life is more significant. The fatigue performance of B2A1 is relatively worse, while the fatigue performance of B1C1 and B2C1 is relatively better. Finally, a new fatigue stiffness degradation model with dual variables and double inflection points is presented, which is applicable to both hybrid and normal FRP sheets.

Microstructures and mechanical properties of BP/7A04 Al matrix composites

The microstructures and interface structures of basalt particle reinforced 7A04 Al matrix composites (BP/7A04 Al) were analyzed by using OM, TEM, SEM and EDS, and the mechanical properties of 7A04 Al alloy were compared with those of BP/7A04 Al matrix composites. The results show that the basalt particles are dispersed in the Al matrix and form a strong bonding interface with the Al matrix. SiO2 at the edge of the basalt particles is continuously replaced by Al2O3 formed in the reaction, forming a high-temperature reaction layer with a thickness of several tens of nanometers, and Al2O3 strengthens the bonding interface between basalt particles and Al matrix. The dispersed basalt particles promote the dislocation multiplication, vacancy formation and precipitation of the matrix, and the precipitated phases mainly consist of plate-like η(MgZn2) phase and bright white band-shaped or ellipsoidal T (Al2Mg3Zn3) phase. The bonding interface, high dislocation density and dispersion strengthening phase significantly improve the mechanical properties of the composites. The yield strength and ultimate tensile strength of BP/7A04 Al matrix composites are up to 665 and 699 MPa, which increase by 11.4% and 10.9% respectively compared with 7A04 Al alloy without basalt particles.

Mechanical properties of polyvinyl alcohol-basalt hybrid fiber engineered cementitious composites with impact of elevated temperatures

In the present study,the mechanical properties of polyvinyl alcohol(PVA)-basalt hybrid fiber reinforced engineered cementitious composites(ECC)after exposure to elevated temperatures were experimentally investigated.Five temperatures of 20,50,100,200 and 400℃ were set to evaluate the residual compressive,tensile and flexural behaviors of hybrid and mono fiber ECC.It was shown that partial replacement of PVA fibers with basalt fibers endowed ECC with improved residual compressive toughness,compared to brittle failure of mono fiber ECC heated to 400℃.The tension tests indicated that the presence of basalt fibers benefited the tensile strength up to 200℃,and delayed the sharp reduction of strength to 400℃.Under flexural load,the peak deflections corresponding to flexural strengths of hybrid fiber ECC were found to be less vulnerable ranging from 20 to 100℃.Further,the scanning electron microscopy(SEM)results uncovered that the rupture of basalt fiber at moderate temperature and its pullout mechanism at high temperature was responsible for the mechanical evolution of hybrid fiber ECC.This work develops a better understanding of elevated temperature and basalt fiber impact on the residual mechanical properties and further provides guideline for tailoring ECC for improved fire resistance.

Some Martial Motifs as Embedded Into Turkish Traditions

Turkish people traditionally make good soldiers. In the Republican Turkey, the draft [conscript service system is the valid application whereby privates （rankless plain soldiers）] are recruited from among healthy and young male citizens, for a specific term specified by law. Such draftees （conscrips） constitute the backbone of the military man-power. Their numbers attain figures much bigger than the numbers of rank-carrying personnel, namely the petty-officers and officers （generals are very few in number）. It is a widely known fact that military life, all over the world, is indeed tough and this is especially true for the rank-and-file, who constitute the lowest levels or the base of the involved hierarchical pyramide. When conscripted for the service, the crushing majority of the young lads go to serve willingly （see Figure 1） and proudly and even with pleasure （see Figure 2）. Those who do not readily render themselves to the armed forces are only a small minority. The reason for that is the high prestige enjoyed by all military personnel within the society. Deeply-rooted historical and cultural interpretations come into play, to make us understand the significance and even the sacredness of the armed service. Indeed, merely a collection of songs and ballads praising military themes, justifies the high value of soldierly ways for Turkisp people.