These stub functions implement the standard Linux DAC policy.
这些桩函数实现标准Linuxdac策略。
The first level is the traditional Discretionary Access Control (DAC).
第一级是传统的自主访问控制(Discretionary Access Control,DAC)。
DAC mechanisms determine what a program can do based only on the identity of the user running the program and ownership of objects like files.
dac机制只是根据运行程序的用户的身份和文件等对象的所有者来决定程序可以做什么。
The NSA found that most operating systems' security mechanisms, including Windows and most UNIX and Linux systems, only implement "discretionary access control" (DAC) mechanisms.
NSA发现大部分操作系统的安全机制，包括Windows和大部分UNIX和Linux系统，只实现了“选择性访问控制(discretionary access control)”(DAC)机制。
Specify the location and name for the extracted DAC package.
指定提取的DAC包文件的路径和文件名。
For example, Bitcoin is technically the first DAC ever created.
例如，比特币在技术上就是有史以来第一个DAC。
The representative voltage scaling DAC have the monotonic property of output.
典型电压按比例缩放式结构的数模转换器可保证输出的单调性。
A fast, high resolution digital-to-analog converter (DAC) is described herein.
本发明描述了一种快速、高分辨率的数模转换器(DAC)。
With a power-on reset functions, namely, the DAC registers reset to all zeroes.
带有上电复位功能，即把DAC寄存器复位至全零。
The design and layout of the DAC circuit has a considerable impact on its performance.
DAC相关电路的设计对其最终表现有重要影响。
Use of a single bit DAC in the modulator guarantees excellent linearity and dc accuracy.
在调制器中使用单比特dac可保证出色的线性度和直流精度。
OBJECTIVE: To prepare the diclofenac acid choline (DAC) eye drops and determine its contents.
目的：制备双氯芬酸胆碱滴眼液并测定其含量。
Working as an interface between the digital and analog world, DAC becomes more and more important.
作为数字世界和模拟世界的接口，数模转换器日益显示出其重要性。
To prevent the carrier leakage caused by DC-offset, the 7-bits DAC is inserted to cancel this dc-offset.
由于发射器的载波泄漏会对线性度造成影响，论文提出了使用7位电流型DAC来校正上调制器的输出直流失调来提高载波抑制。
By changing the amplification multiple through DAC signals, the measurement range of the system is improved.
用DAC芯片程控信号调理电路的放大倍数，提高了系统的测量范围。
The DAC mechanism controls access to database objects based on the privileges enabled in the database session.
DAC机制通过数据库会话拥有的权限来进行数据库对象的访问控制。
A method to design the value of coupling capacitor in coupled high-resolution charge-scaling DAC is presented.
介绍了耦合结构高分辨电荷按比例缩放DAC级间耦合电容值的设计方法，讨论了寄生电容对DAC精确度的影响。
The DAC further includes a plurality of macro cells with each controlled by one bit of the first thermometer code.
所述DAC进一步包括多个宏单元，每个宏单元由所述第一温度计码的一个位所控制。
A signal source in sonar receiver's testing is designed, its working principle is based on DDS technology and log DAC.
设计一种声纳接收机测试用信号源，该信号源的工作原理基于DDS技术和对数DAC。
The operating characteristics and pin function of DC-DC converter MAX686 with DAC control are introduced in this paper.
介绍一种具有数模转换功能的DC -DC转换器MAX686的性能特点，给出了数控电源典型应用电路的参数设计过程。
The unit capacitor and the switch array are optimized so that the DAC can achieve a better tradeoff between accuracy and speed.
D/A转换器的设计过程中，主要从精度和速度两个方面做分析，对单位电容和开关阵列进行了设计优化。
The dissertation introduces the design of a 12-bit segmented current steering DAC based on data weighed average algorithm (DWA).
本论文着重阐述一种基于数据权重平均算法（DWA）的12位分段式电流舵型数模转换器的设计。
The DAC 100 needs to be able to count up and down and consequently a reset condition should take it to a point near its mid-range.
DAC 100需要能够递加和递减计数，因此复位条件应当将其带到接近其中间范围的点。
A novel microelectromechanical digital-to-analog converter(MEMDAC) analogous to electronic weighted-resistor DAC is proposed in this paper.
提出了一种新颖的基于权值的微机械数模转换器，它的原理与电路中的权电阻数模转换器类似。
In situ Raman spectra of cycloheptane have been characterized under high pressure generated by diamond anvil cell (DAC) at room temperature.
利用金刚石对顶砧(DAC)装置产生高压，在室温下对环庚烷进行了高压原位拉曼光谱研究。
In the circuit design, unit current source arrays and digital synchronizing cells are used to improve the matching and dynamic range of DAC.
电路设计中使用单位电流源阵列和数字同步控制单元来提高电流源的匹配性和动态范围；
The experimental results show that the algorithm is simple and can compensate the modulated waveform error due to DAC signal reconstruction.
实验结果表明该算法简单方便，能有效补偿DAC带来的波形调制误差。
These indicate that this DAC has a good dynamic range and good accuracy, and also prove the effectiveness of the error compensation strategy.
这些结果表明了该DAC具有很好的动态范围和精度，也证明了本文的匹配误差补偿策略的有效性。
It is also proposed in this paper that the digital PWM is a DAC in essence and its resolution selection rules should also follow that of DAC.
文中同时指出，数字式pwm的实质也是一种DAC，它的位数选择同样遵循DAC的选择原则。
Traditional access control models, including MAC model and DAC model, have no longer been able to meet the security need of contemporary systems.
传统的访问控制模型——MAC模型和DAC模型，已远不能满足当代系统安全的需要。
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