利用滑动分区挑选预报因子

介绍了一种利用滑动分区挑选预报因子的方法，该方法既找到了要素因子，同时又对该要素因子的区间有了限定，用该方法作重庆市晴雨预报的结果表明，该方法挑选因子建立的预报模型可以减少空报率或漏报率，其效果是比较好的。     

"课堂分组案例实践"教学模式的构速与应用

提出了“课堂分组案例实践”教学模式，阐述了该教学模式的特点与优势，并从教学准备与教学设计环节对该教学模式进行了构建与应用，结果表明，该模式教学效果良好．     

浅谈分户采暖系统的应用与前景

本文介绍了分户采暖系统在国内应用的概况，归纳了该技术在应用过程中的优缺点，并进一步论述了该技术应用的原因，最后综合展望了该技术的应用前景。     

一个迭代函数系统的分形混沌特性及其应用

介绍迭代函数系统生成分形的原理以及分形位移动力系统的混沌特性.构造了一个迭代函数系统，用于生成充满整个单位正方形的填充曲线，理论上证明该迭代函数系统的分形位移动力系统的Devaney混沌特性.将该迭代函数系统的分形位移动力系统参数化，数值上验证该分形位移动力系统的混沌性能，并使用该混沌系统设计了一个基于DNA运算的混沌图像加密算法，详细分析了该加密算法的安全性.     

关于中小学教育资源布局调整的实践及其思考

本文以某县城中小学校为例，分析了该地区中小学校教育概况，探讨了该地区布局存在的主要问题，以及进行布局调整的可行性，并探讨了该地区中小学校布局调整的实践步骤，以及主要的布局调整措施。     

计算机组成原理教学探讨

计算机组成原理是大学计算机专业的重要理论课程，关于该课程的教学方法，教学理念的问题一直是该课程教学活动中探讨的中心问题。笔者根据教学实践，阐述了该课程的特点，介绍了该课程教学中存在的问题，并提出了一些教学方法，以达到培养学生学习兴趣，提高教学质量的目的。     

带电体吸引小物体的计算

本文根据电动力学中的有关理论，对正负电极吸引轻小物体和通电直导线吸引小电流圈进行了分析和研究，找到了计算该力的方法，指出了该引力的方向，证明该力为引力。     

《操作系统》学习指导

操作系统是计算机专业的主干课程之一，本介绍了该课程的特点，解析了该课程的重难点．并给出了该课程的学习方法。     

纤维—混凝土复合管的流固耦合振动模态分析

为研究玻璃纤维-混凝土复合管的振动特性，分析了该管的结构，建立了流固耦合仿真模型，形成了该管的单向流固耦合分析方法，继而对该管进行了谐响应分析.结果表明，该管道在流固耦合状态下，形变大于自由状态时的形变，固有频率会有所降低，管道因振动产生破坏的可能性大幅提升；而谐响应分析结果更清晰地证明了管道在低阶振动模态容易发生破坏.     

重尾分布尾部指数的Crovella估计性质研究

重尾分布的尾部指数的估计方法有很多种，但都不同程度地存在一定的局限，为此，Crovella提出了一种从标度特征方面来估计尾部指数的方法，该方法易于应用，估计结果也比较准确．在阐述了该估计方法的具体步骤后，给出了相应的估计量，并从理论上对该估计量的相合性进行了分析，证明该估计量具有强相合性．     

A preliminary report on the newly found Tianyuan Cave, a Late Pleistocene human fossil site near Zhoukoudian

The Tianyuan Cave is the only human fossil-bearing site containing rich mammalian fossils found in the last decades near Zhoukoudian. Up to now more than 34 specimens of the human body have been recovered, and the mammalian fossils can be put into 29 species. Cervids dominate the fauna, and carnivores are very rare. Based on the primary examination, the human fossils can be attributed to the species Homo sapiens. All the mammalian fossils, except one between tooth of Crocuta belong to the species that still exist today. But some of them are the first records in fossil form north of the Yellow River, such as Arctonyx and Capricornis. Based on the mammalian fauna study, it seems that the Tianyuan Cave can be correlated with the Upper Cave.Sixty-three percent of the species of the mammalian fauna from the Tianyuan Cave are also present in the Upper Cave.The characters of the deposits also share some similarities between the Tianyuan Cave and the Upper Cave; both of them are mainly composed of breccia without cement. The dating using the U-series method on deer tooth samples indicates that the geological age of the new site is around 25 thousand years B.P. This is the first discovery of human sites outside the core area of the Peking Man Site at Zhoukoudian,which throws new light onto this world famous site complex.     

The Homo sapiens Cave hominin site of Mulan Mountain, Jiangzhou District, Chongzuo, Guangxi with emphasis on its age

One of the most hotly debated and frontal issues in paleoanthropology focuses on the origins of modern humans. Recently, an incomplete hominin mandible with a distinctly weaker mental protuberance than modern human and a great variety of coexisting fossil mammals were unearthed from the Homo sapiens Cave of Mulan Mountain, Chongzuo, Guangxi. The mammalian fauna from the Homo sapiens Cave characterized by the combination of Elephas kiangnanensis, first occurring Elephas maixmus, and Megatapirus augustus, and strikingly different from the Early Pleistocene Gigantopithecus fauna and the Middle Pleistocene Ailuropoda-Stogodon fauna of South China could be regarded as an early representive of the typical Asian elephant fauna. Faunal analysis, biostratigraphic correlation, and, most importantly, U-series dating all consistently support an estimate of ca. 110 ka for the age of the fossil Homo sapiens and coexisting mammalian fauna, that is, the early Late Pleistocene. The fauna is mainly made up of tropical-subtropical elements, but grassland elements have a much greater variety than forest elements, which probably indicates a drier climate at that time. This discovery of early Homo sapiens at the Mulan Mountain will play a significant role in the study of the origin and its environmental background of modern humans.     

Middle Pleistocene mammalian fauna of Shanyangzhai cave in Qinhuangdao area,China and its zoogeographical significance

The mammalian fauna with clear characteristics of transitional region has been found in the Shanyangzhai cave of the Qin-huangdao area where the three Chinese zoogeographical regions (the Northeast region, the North region and the Mengxin region) join. Abundant fossils mainly are small mammals. The fauna includes typical species derived from three zoogeographical regions and can be compared with the middle Pleistocene faunas found in both the Zhoukoudian (the North region) and the Jinniushan (the Northeast ...     

New discoveries from the classic Quaternary mammalian fossil area of Yanjinggou, Chongqing, and their chronological explanations

Yanjinggou in Wanzhou District of Chongqing is one of the earliest reported and most famous Quaternary mammalian fossil areas in China. The fauna from this area used to be taken as a benchmark for the biochronological comparison of Quaternary paleontology of South China, but the chronology of this fauna has many controversies for the lack of exact locational and stratigraphical records. The present article, on the basis of recent investigations and discoveries, discusses and explains the distribution and biochronology of the mammalian faunas in the Yanjinggou area. The newly discovered Dayakou fissure fauna, including Rhizomys troglodytes, Homotherium sp., Panthera pardus, Stegodon orientalis, Dicerorhinus sumatrensis, Hesperotherium sinense, Sus sp., Cervavitus fenqii, Cervus sp. and Muntiacus sp., is correlated to the middle Early Pleistocene. The presence of Early Pleistocene mammalian fauna in the Yanjinggou area is therefore confirmed. The “Wanhsien fauna” or “Yenchingkou (=Yanjinggou) fauna” as a Mid-Late Pleistocene biostratigraphical datum should be abandoned. The Dayakou fauna and the Upper Cave fauna of Pingba, both in the Yanjinggou area, are correlated to the middle Early Pleistocene and the early Middle Pleistocene in age, respectively.     

Early Pleistocene hominid teeth recovered in Mohui cave in Bubing Basin, Guangxi,South China

Since the 1950s, researchers who examine the issue of human beginnings often turn to Africa where there is a picture of human origins and evolution based on African hominid fossils with ages that are constantly revised to be older and older. However, there are many other unsolved problems about early human origins and evolution that may be solved by looking outside Africa. Over seventy years ago, Asia was described as a dispersal center of the earliest human industry, and a key arena for huma…     

Huanglong Cave, a new late Pleistocene hominid site in Hubei Province, China

For the past two decades, the modern human origins debate has received significant interest from both the scientific community and the public. The two hypothe- ses “Out of Africa” and “Mutiregional evolution” are focuses of this debate[1-3]. In partic…     

马坝人地点南支洞铀系定年初步结果

报道马坝人地点南支洞次生碳酸盐岩和骨化石样的铀系年代. 根据表层钙板 2 个样品 3 次测试的平均结果,其下含化石堆积应早于 237 ka. 出自第二层堆积的骨化石样分析结果显著小于上覆表层钙板,可引为骨化石铀系年代结果可信度欠佳的例证. 基于洞穴地点骨化石样铀系年代总体偏低的认识,并基于南支洞与出土马坝人化石裂隙堆积层位相当的假设,我们认为可暂以南支洞表层钙板年代 (237 ka),代表马坝人化石的最小年代. 南支洞尚存较多的含化石堆积,多学科综合研究或可为马坝人的年代位置提供进一步的证据.     

古人类遗址桐梓岩灰洞的Th-230/U-234年龄

用 Th-230/U-234法测定了岩灰洞钟乳石结层和骨化石样品的年龄。划为第二层的钙板的年龄为21.4万年。先于钙板生成的岩灰洞堆积物的年龄应大于此值,因此应划为更新世中期,桐梓人应属直立人。     

Discovery of micromammalian fauna of Sichuan-Guizhou Area in Lantian, Shaanxi

The study of the Xishuidong micromammalian fauna, found from Lantian, Shaanxi Province, indicates that both the northern slope of the Qinling Mountains and Sichuan-Guizhou area must belong to the same Oriental Realm in middle-late Middle Pleistocene. The age of the Xishuidong fauna should be later than that of the Gongwangling fauna, and even a little later than that of the Zhongjiawo fauna in age. The fauna is related not only to that of layers 9 and 8 of Peking Man locality in northern China, but also to the micromammals from Hexian Man Locality in southern China.     

A newly discovered Gigantopithecus fauna from Sanhe Cave, Chongzuo, Guangxi, South China

Among the most important faunas in the Late Cenozoic, the Gigantopithecus faunas have received a good deal of attention. The Gigantopithecus fauna recently discovered in Sanhe Cave consists of more than 80 mammal species, including cf. Hominidae, Pongo sp., Hylobates sp., Sinomastodon yangzien-sis, Stegodon preorientalis, Cervavitus fenqii, Dicoryphochoerus ultimus and Sus xiaozhu. It is the southernmost Gigantopithecus fauna found so far in China. Its geological age is estimated to be Early Pleistocene bas...