硬盘主引导记录的保存与恢复

在Ｔｕｒｂｏ Ｃ＾＋＋３．０环境下，编程实现硬盘主引导记录的保存与恢复。     

硬盘主引导记录的保存和恢复

硬盘主引导记录包括引导代码和分区信息 ,启动计算机时 ,ROMBIOS把主引导记录装入内存 ,并且把控制转给其引导代码的第一条指令 ,由此开始启动过程 ,引导代码通过读取分区表的引导标志来识别由哪一个分区引导系统 ,所以主引导记录的安全维护是非常重要的 为此 ,介绍一种新的保存和恢复主引导记录的方法 ,并且给出了一个用汇编语言编制的程序实例     

CMOS信息,硬盘引导记录及分区表的快速保存与恢复

本文介绍了一种利用Ｎｏｒｔｏｎ Ｕｔｉｌｉｔｉｅｓ８．０进行ＣＭＳ信息，硬盘引导汲分区表的快整保存与恢复的操作方法。     

CMOS信息、硬盘引导记录及分区表的快速保存与恢复

本文介绍了一种利用NortonUtilities8．0进行CMOS信息、硬盘引导记录及分区表的快速保存与恢复的操作方法。     

硬盘主引导记录的数据重建

从硬盘主引导记录和分区表的结构着手,介绍了硬盘主引导记录的查看及修改方法着重论述了如何在不破坏硬盘原有数据的情况下,重建主引导记录的原理和方法     

DEBUG直接读硬盘主引导记录的技术

本文通过对DOS的BPT表的深入分析，找出BPT表在内存中的位置，并给出该表的使用技术．     

硬盘主引导记录重建工具的设计及实现

通过对ＤＯＳ系统提供的分区程序ＦＤＩＳＫ．ＥＸＥ的分析，提出了一种重建硬盘主引导记录的设计思想，并详细介绍了其设计及实现过程     

硬盘分区参数的保存与恢复

本文讨论利用DEBUG工具保存和恢复硬盘主引导扇区和逻辑盘引导扇区的方法。     

在Win98中用DEBUG直接读硬盘主引导记录的新技术

通过对Windows98的BPT表的深入分析,找出BPT表在内存中的位置,并给出使用该表装入主引导记录,进而对其进行修改、备份或恢复的技术。     

硬盘主引导扇区软故障浅析

本文简析了硬盘主引导扇区的结构、硬盘的引导过程以及主引导扇区损坏引起的软故障,并对调用BIOS磁盘I/O中断进行维护的简单方法进行了介绍。     

伊朗臂茧蜂亚科、茧蜂亚科、甲腹茧蜂亚科和小腹茧蜂亚科的新记录 （膜翅目：茧蜂科）(英文)

记述了伊朗茧蜂科Braconidae 4个亚科,臂茧蜂亚科Brachistinae（2属4种）、茧蜂亚科Braconinae（7属9种）、甲腹茧蜂亚科Cheloninae（3属6种）和小腹茧蜂亚科Microgastrinae (3属6种)的25种分布新记录。     

节约型社会与中国夏时制的创新探讨

从夏时制的科学依据入手,将世界各国的成功经验与我国实际情况相结合,探讨了我国实行创新夏时制的模式与可行性,并提出我国有效恢复夏时制的建议。     

绿色建筑的节能减排策略初探

绿色建筑是世界建筑发展的必然趋势,绿色建筑的节能减排设计是实现绿色建筑的重要环节。本文从对绿色建筑的概念和发展状况的介绍入手,就建筑的节能设计和减排设计两方面来展开论述,全面的探讨了绿色建筑节能减排设计实施的途径。     

Population dynamics of Pygoscelis penguins(1980–2012) and penguin dropping records(1916–2001) on Ardley Island of West Antarctica,in response to ENSO

El Nio-Southern Oscillation(ENSO)has affected penguins and their habitats in the western Antarctic Peninsula.We used both historical penguin population dynamics data(1980–2012)and sedimentary lipids in penguin droppings(1916–2001)on Ardley Island to examine the responses of the Antarctic ecosystem to ENSO(El Nin o/La Nin a)events.The results showed that during the last 30 years,climate,marine food chain changes,and human activity have significantly affected penguin population sizes on Ardley Island.The Chinstrap(Pygoscelis antarctica)and Ade′lie(P.adeliae)penguin populations showed a good correlation with ENSO events.The Chinstrap penguin population decreased significantly because it was more sensitive to increasing human disturbance(e.g.,scientific activity and tourism)than Ade′lie and Gentoo(P.papua),particularly during the breeding season.Compositional features of n-alkanes in penguin dropping sediments revealed that organic matter came from lower terrestrial plants,bacteria and algae.C23was the main nalkane heavy hydrocarbon indicating mosses and lichens in the penguin’s diet.Variation in the ratio of nC23/nC17was closely correlated with ENSO events.The bacteria intrusion index(ratio of(iC15:0?aC15:0)/nC15:0for fatty acids)reflected significant increases in microorganism activity during several periods in this area.Meanwhile,the CPIA value for fatty acids decreased because micro-organisms contributed light hydrocarbon fatty acids to penguin droppings.Our results showed that the fine structure and molecular indices of fatty acids and n-alkanes in penguin dropping sediments can be used to explain climate-driven microbial processes,and to reveal the important role that microbes and bacteria play in the relatively simple Antarctic ecosystem.     

The plant diversity and its relationship with paleoenvironment since 2.78 Ma revealed by pollen records in the Heqing deep drilling core

Multifold palynological diversity indices calculated by pollen data of the Heqing deep drilling core are synthetically analyzed, the results show that the plant diversity rapidly increased and its fluctuant am- plitude and frequency evidently largened during the stages of 2.729--2.608 Ma, 1.176--0.342 Ma and since 0.118 Ma respectively, while during the other periods the plant diversity was relatively low with a gentle fluctuation. To discuss further the relation between ancient plant diversity and paleoenvironment, it is considered that the plant diversity in the Heqing region lies on increase or decrease of vertical vegetational belts in mountains around the studied area and richness of components of these vegeta- tional belts, and is controlled by amplitude of tectonic uplift of mountains and climatic changes. The high plant diversity during 2.729--2.608 Ma responded to the strong uplift of mountains at the stage, while the plant diversity greatly increased and its fluctuant amplitude and frequency markedly largened at about 1.176 Ma was obviously response to the Middle Pleistocene Transition. The plant diversity and its fluctuant amplitude and frequency increased further at about 0.991 Ma may be superposably affected by both the Middle Pleistocene Transition and the tectonic uplift. The plant diversity increased since 0.118 Ma may indicate that the southwest monsoon strengthened and humid climate more fitted many kinds of plants to grow.     

Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau

Pollen records with an average time resolution of 20-200 years from Holocene loess sections at Dingxi, Qin'an, and other localities of Gansu Province reveal a detailed history of vegetation and climate changes in the western Loess Plateau. For most time of the Holocene, the landscape was dominated by grasslands or forest steppes. However, during the middle Holocene (7.5-5.8 ka BP), relatively dense forests developed, and the endemic vegetation flourished, suggesting a much warmer and more humid climate condition than the present. Superimposed upon this general pattern are several dry intervals marked by the episodic expansion of grasslands or forest steppe. Xeric vegetation expanded after 3.8 ka BP, indicating a trend towards dry conditions.     

Pollen records of Holocene vegetation and climate changes in the Longzhong Basin of the Chinese Loess Plateau

Pollen records with an average time resolution of 20—200 years from Holocene loess sections at Dingxi, Qin'An, and other localities of Gansu Province reveal a detailed history of vegetation and climate changes in the western Loess Plateau. For most time of the Holocene, the landscape was dominated by grasslands or forest steppes. However, during the middle Holocene (7.5—5.8 ka BP), relatively dense forests developed, and the endemic vegetation flourished, suggesting a much warmer and more humid climate condition than the present. Superimposed upon this general pattern are several dry intervals marked by the episodic expansion of grasslands or forest steppe. Xeric vegetation expanded after 3.8 ka BP, indicating a trend towards dry conditions.     

Geochemical records in the subaqueous Yangtze River delta and their responses to human activities in the past 60 years

Based on studies of the geochemical elements of core sediments collected from the subaqueous Yangtze River delta front, combined with 210Pb and 137Cs nuclide dating, element recording profiles were set up and anthropogenic impacts on the sedimentary records were considered. The results suggest that (1) The core formed since 1945, of homogeneous clay and silt sediments. (2) The content of most elements underwent little change, but the content of S and Nb increased gradually. In particular concentrations of these elements and heavy metals increased rapidly and were maintained at high levels in the surface and sub-surface layers (i.e. since the 1990s). The elements S, As and Nb and principal factor 4 (F4), which were sensitive to anthropogenic impacts, could be used as indicators of human activities. (3) The value of each indicator has increased gradually since 1945, with a sharp increase over the last 20 years. When divided according to changing values of the indicators at 185 cm (1955), 97 cm (1978), 47 cm (1992), and 7 cm (2003), five periods of the geochemical elements records were obtained. These corresponded to the ages of from the Chinese Civil War to the early stages of planned economy, the implementation of planned economy, the reform and opening-up period, the market economy establishment phase and the environment control and protection stage after 2003, respectively.     

混凝土内含角钢桁架柱恢复力特性研究

通过对钢—砼框架柱在低周反复循环荷载试验，研究了在不同剪跨比、轴压比、配箍率、含钢率下ＳＣ柱的滞回性能，提出了能够反映ＳＣ柱特点的退化三线型恢复力模型及其特征点的计算方法，有关结论可供ＳＣ柱抗震设计参考。     

贫化电炉节能高效计算机数据采集与处理系统研制及应用

以节能、降低渣含钴为中心，将控制理论与热工理论有机结合，开发了贫化电炉计算机数据采集与处理系统的数学模型，将ＦＯＲＴＲＡＮ与ＦＯＸＢＡＳＥ＋两种计算机语言结合起来，完成了整个数据采集与处理系统软件的编制与屏幕功能的设计，该系统投入金川贫化电炉生产，取得了良好的经济效益和社会效益，大大增强了生产管理的科学性