稻作农业起源研究中的植物考古学

早期稻作农业是植物考古学的一个研究热点。本文首先厘清了农业、栽培和驯化等稻作农业发展中的常用术语。进而对区分野生稻与驯化稻,即反映“半驯化”特征的几个指标包括基盘、谷粒尺寸和植硅石分别展开讨论。文章结合我们对现代野生稻和栽培稻的测量数据以及田螺山的工作,引用了国内外诸多考古实例和最新的分子学证据,证据表明上述几个指标在某些程度上多少可以作为性状来判断驯化稻是否已经出现,但是随着农业景观概念的提出,耕地杂草群落作为农田系统研究的证据．为稻作农业出现和发展研究展开了新视野。     

Rice fields and modes of rice cultivation between 5000 and 2500 BC in east China

Recently, rice fields dated between 5000 and 2500 BC were found at the Tianluoshan sit in east China. The early rice fields dated between 5000 and 4500 BC are the oldest rice fields known. The discovery has provided data of recovering reclamation, cultivation, and the ecological system of rice fields in the Neolithic age. People opened up marshes of dense reeds with fire and wooden or bone spades, in order to create rice fields. In the rice fields, there was not only rice, but a lot of weeds as well. The excavations proved that little or even no weeding or irrigation was adopted. However, tilling soil by wooden and bone tools was evidenced. The average yields are estimated to have been about 830 kg for the early period and 950 kg per hectare for the later period. The cultivation system was low-level. Although the Tianluoshan people cultivated rice, they still obtained a great deal of food by gathering and hunting.     

九连墩墓地1、2号墓出土青铜器上锈蚀产物分析

采用XRD、XRF和显微照相等方法,测试分析了九连墩1、2墓中出土青铜器锈蚀产物的成分和物相组成,发现该产物的物相主要为氧化亚铜.结合埋藏环境土壤的理化分析,探讨了这些锈蚀产物的形成原因,以及其对青铜文物的影响.同时使用XRD分析方法研究了这批青铜器在大气中的腐蚀情况,发现了一部分文物已经滋生了"粉状锈".     

潮湿土遗址隔水防潮技术对比研究

潮湿土遗址的破坏,很大程度上是受水的影响,目前国内几个潮湿土遗址经常使用的防水隔水措施主要有:挡水墙、隔水廊道、拱券法和抽水法。经过对几种方法进行总结评价,可看出拱券法是最有效的方法。     

明瓷遗珍——四川博物院藏成都明墓出土瓷器

上世纪50至70年代,成都地区发掘了一批明代墓葬,主要包括城东净居寺、胜利公社、前进机器厂．城南红牌楼、衣冠庙;城西三座坟;城北白马寺、五块石等地区发掘的明代墓葬。从墓葬中出土的墓志或者买地券来看,墓主大多是明蜀王府太监,有些墓葬还有准确纪年。     

杨波的黄花梨收藏

他靠5000元起家,从家庭作坊发展到古典家具领军企业,他率先将海南黄花梨家具引入国际顶级私人物品展（Top Marques）,他将海南黄花梨的珍稀性、投资收藏性深入人心,他曾宣称＂海南黄花梨仅供中国人购买＂,     

A New Proposed Passive Mega-Sub Controlled Structure and Response Control

It is still a serious challenge for structural engineers to effectively reduce the seismic responses of tall and super tall buildings to further improve these structural safeties. In order to solve this problem, in this article a new kind of structural configuration, named passive mega-sub controlled structure (PMSCS), is presented, which is constructed by applying the structural control principle into structural configuration itself, to form a new structure with obvious response self-control ability, instead of employing the conventional method. In the analysis of PMSCS the equations of motion of the seismically excited system are developed, based on a realistic analytical model of the complete mega-structural system. Expressions of the displacement and acceleration response of the structure, resulting from simulated earthquake ground motions represented by stationary and nonstationary random processes, are derived. These responses are then determined for both the PMSCS and its conventional mega-sub structure (MSS) counterpart, whose configuration was modeled after the traditional mega-frame that was used in the construction of the Tokyo City Hall. A parametric study of the structural characteristics that influence the response control effectiveness of the PMSCS is presented and discussed. The region over which these structural characteristics yield the optimum seismic response control of the PMSCS is identified and serves as a very useful design tool for practitioners. The study illustrates that the proposed PMSCS offers an effective means of controlling the seismic displacement and acceleration response of tall/super-tall mega-systems. It also overcomes shortcomings exhibited in earlier proposed mega-sub controlled structural configurations.     

侵华日军第100部队第二部第六分部人体实验细节探析

侵华日军第100部队是日本为实施细菌战在中国东北建立的一支细菌部队,此前,多认为它是针对牲畜及农作物的细菌战部队,随着美方档案解密,披露出它进行人体活体实验的事实。100部队的人体实验主要是由第二部第六分部负责,几乎整个第六分部的成员都参与了人体实验,可能早在1936年关东军军马防疫厂成立之初就已经开始人体实验,大规模进行实验主要是在1943年12月第六分部成立后。被实验者既有中国人,也有苏联人,具体身份有战俘、劳工、传染病病人、毒品吸食者、政治犯、乞丐等。人体实验的种类包括鼻疽菌、炭疽菌、牛瘟及毒品等。人体实验是100部队研究中不可逾越的核心问题,对100部队的人体实验细节探析也是对日本侵华细菌战证据的有效补充。     

The Last Hail Preventer Old Wangchug

My name is Wangchug.I an 82 years old.I am from the Village of Namserling,in Chanang County.My former job was a "Lala",i.e the hail arrester (also a weather sorcery of hail prevention Lama).     

明清苏州商品经济与文物藏家群体

明清时期苏州收藏家群体的形成与苏州明清时代繁荣的商品经济密切相关,在形成过程及其收藏活动中所表现出来的收藏心态、审美情绪以及处世方式无不打上商业社会的特有烙印。