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The laminar flamelet model in combination with joint probability density function transport equation of mixture fraction and turbulence frequency is used to simulate fluctuating behavior of radiative source term in turbulent jet diffusion flames of hydrogen.

采用κ-ε湍流模型、标量联合的概率密度函数输运方程和层流火焰面模型相结合，模拟氢气自由扩散火焰中辐射源项湍流脉动特征。给出了主燃区内辐射源项湍流脉动的频率图。辐射源项的样本点分布集中，大约95%以上的样本落在其系综的±3倍方差以内，频谱图为单峰

Digital receiver and its forepart operational principle are discussed, then me...

本文讨论了数字接收机以及前端的工作过程，然后详细阐述了瞬时自相关、短时傅立叶变换、WD算法、过零检测和小波分析等各种算法在脉内调制分析上的应用，分析了各算法的优缺点，提出一种并行处理模式：即针对不同的信号采用不同的算法对脉内调制信号进行分析。

Seven molybdenite samples from greisen ore body and quartz vein tungsten ore body associated with black tungsten ore were chosen for Re-Os isotopic dating and model age of (141.4±2.2) Ma~(158.2±2.2) Ma were obtained. The isochrone age of molybdenites from greisen type tungsten-tin ore body is (156.8±3.9) Ma, which indicates that its mineralogenetic epoch is at the Middle Jurassic, corresponds to the second stage of early Yanshanian period. And the model age for the samples from greisen ore body and from quartz vein ore body are (150.7±2.4) Ma~(158.2±2.2) Ma and (141.4±2.2) Ma~(151.0±2.4) Ma respectively, which indicates that the mineralization time of the quartz vein ore body is slightly earlier than that of greisen ore body.

文章选取云英岩型矿体及上部石英脉型钨矿体中与黑钨矿共生的辉钼矿7件，进行Re-Os等时线年龄测定，得到其模式年龄为(141.4±2.2) Ma~(158.2±2.2)Ma，其中云英型钨锡矿体中辉钼矿等时线年龄为(156.8±3.9)Ma，成矿时代为中侏罗世，对应于燕山早期第二阶段；从云英岩矿体中样品模式年龄为(150.7±2.4)Ma~(158.2±2.2)Ma，石英脉型矿体中样品模式年龄为(141.4±2.2)Ma~(151.0±2.4)Ma。

Fruit dehiscent siliques, linear, terete or latiseptate; valves with a prominent midvein and often distinct marginal veins, glabrous or glandular, torulose; gynophore obsolete, rarely to 1 mm; replum flattened; septum complete; style obsolete or to 3 mm; stigma capitate, slightly lobed, rarely prominently lobed and subdecurrent.

果开裂长角果，线形，或具宽隔膜；裂爿具一突出中脉和通常离生边缘脉，无毛或具腺，；雌蕊柄淘汰，很少对1毫米；使变平的假隔膜；隔膜完全；花柱废退的或到3毫米；柱头头状，稍浅裂，很少显著浅裂和。

Fruit ellipsoid or oblong, rarely ovoid or linear-ellipsoid,(3-)5-9(-10)× 1.5-2.5 mm, cuneate at least at apex; valves with a prominent midvein; gynophore obsolete or to 0.5 mm; septum perforated or complete, with a midvein distally; style 0.5-1(-1.5) mm. Seeds brown, oblong or subovate, 1.1-1.8 × 0.8-1.1 mm.

果椭圆形或长圆形，很少卵球形的或线形椭圆形，( 3-)5-9(-10)* 1.5-2.5 毫米，楔形的至少在先端；裂爿具一突出中脉；雌蕊柄过时或者对0.5毫米；隔膜具孔或者完全，具一中脉上部；花柱0.5-1(-1.5)毫米种子棕色，长圆形或， 1.1-1.8 * 0.8-1.1 毫米。

Leaf blade secondary veins at an angle of 55°-60° from midvein; hypanthium obconic.

在来自中脉的一个55°-60°的立场的叶片次脉；托杯倒圆锥形 17 E。

Leaf blade secondary veins at an angle of 35°-45° from midvein; hypanthium semiglobose.

在来自中脉的一个35°-45°的立场的叶片次脉；托杯半球形 16 E。

The leucogranites veins occurred widespreadly in the para-metamorphic rocks, in which the hypersthene melagranulite distributed. That suggests the source rocks of leucogranites of the High Himalaya are para-metamorphic rocks. For the basement was uplifting, pressure relieved and lacked water, source rocks were melting partly and formed the leucogranite magma.

基底副变质岩中广泛分布淡色花岗岩脉体，在基底副变质岩中的淡色花岗岩脉体中发现紫苏辉石暗色麻粒岩残留体，这表明本区高喜马拉雅淡色花岗岩源岩为基底副变质岩，且基底副变质岩是在基底快速隆升降压的条件下发生缺水熔融生成的淡色花岗岩岩浆。

In order to improve the mechanical performance and transmission efficiency of the traditional pulsed mechanical continuously-variable transmission,a novel pulsed CVT is proposed according to the linear characteristic of hypocycloid at specific parameters and by combining the planet gear transmission mechanism with the crank slide block mechanism.

针对脉动式无级变速器动力性能差、效率低下等缺点，利用内摆线在特定条件下为直线的特性，将行星齿轮传动机构与曲柄滑块机构相结合，提出了一种新型脉动式无级变速装置。

The physical characteristic of weathered lamprophyre has impenetrability and nonhomogeneity, however, the YDS epoxy resin possesses initial viscosity, strong affinity to mediums, excellent permeability and good ageing property. After chemical grouting, the rock mechanics characteristics are improved greatly and can meet the design requirements, it indicates that lamprophyre can be grouted by YDS epoxy resin.

为此，采用了高渗透性的YDS环氧材料对风化后的煌斑岩脉进行纯压式灌浆试验，试验结果表明：通过YDS改性环氧浆液的"浸透""浸渗"加固处理，风化的煌斑岩脉力学性能大幅提高，基本能满足设计的力学指标要求。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。