搜索结果: 1-15 共查到“SIS”相关记录31条 . 查询时间(0.062 秒)
巴陵石化热塑橡胶SIS产品“换新装”
巴陵石化 橡胶 中国石化 苯乙烯
2023/7/1
2023年6月27日，巴陵石化橡胶部SIS装置后处理生产线，刚换上全塑袋“新装”的热塑橡胶SIS产品整齐有序排列下线，等待出厂。与纸塑袋相比，全塑袋包装实现升级，采购成本降低约三成。
广州石化2号重整装置SIS系统实现无扰动迁移
广州石化 SIS系统 安全仪表系统 中国石化
2023/3/22
近日，广州石化2号重整装置顺利完成安全仪表系统（SIS系统）远程机柜在线迁出。整个过程装置安全环保运行，SIS系统实现在线无扰动迁移，在公司尚属首次，为下一步安全绿色高质量发展技术改造项目的实施创造了条件。
CULTURAL HERITAGE DOCUMENTATION IN SIS ENVIRONMENT: AN APPLICATION FOR "PORTA SIRENA" IN THE ARCHAEOLOGICAL SITE OF PAESTUM
SIS GIS Close Range Photogrammetry Cultural Heritage Point Clouds
2017/6/20
The Heritage Documentation allows the monitoring, maintenance and conservation by the most recent, efficient investigation techniques and storage of data. A key role in Heritage Documentation is repre...
Efficient Commitments and Zero-Knowledge Protocols from Ring-SIS with Applications to Lattice-based Threshold Cryptosystems
Efficient Commitments Zero-Knowledge Protocols
2016/12/8
We present an additively homomorphic commitment scheme
with hardness based on the Ring-SIS problem. Our construction is statistically
hiding as well as computationally binding and allows to commit
...
基于DeltaV SIS 组态的南堡1-3 人工岛紧急关断系统
紧急关断系统 DeltaV SIS 组态 高级功能块
2016/12/24
冀东油田南堡1-3人工岛采用气举方式进行采油，由于工作环境恶劣，必须确保平台处于危险情况时系统可以立即检测出来，并作出响应，以保证人员及设备的安全，为此设计了紧急关断系统（ESD）。结合1-3人工岛生产工艺，依据危险和可操作性研究（HAZOP）、仪表保护功能研究（IPFstudy）评估，将该岛紧急关断逻辑功能划分为4个等级，对其典型的关断功能进行分析，利用DeltaVSIS的高级功能块组态实现其功...
Improved Exponential-time Algorithms for Inhomogeneous-SIS
Short integer solution problem (SIS) SWIFFT hash function subset-sum
2016/1/8
The paper is about algorithms for the inhomogeneous short integer solution problem: Given
(A, s) to find a short vector x such that Ax ≡ s (mod q). We consider algorithms for this problem due
to Cam...
A Method for The Improvement Elevation Data Generated from Automated Photogrammetric Methods into SIS
DEM Matching
2015/7/7
A Method for The Improvement Elevation Data Generated from Automated Photogrammetric Methods into SIS.
四川盆地普光气田是国内规模最大的高含硫气田，天然气中硫化氢含量平均高达14.14%，气田地面工程分为集输系统、天然气净化厂、外输首站三部分。气田自2010年投产运行至今，共发生了3次全气田一级关断事件，通过充分梳理总结，发现3次气田一级关断事件，都不是由设计时所考虑的异常工艺条件所引发的，而是由晃电和集输总站与外输首站的SIS系统保障措施故障或误动作引发的。为了提高气田的生产稳定性（可用性），对集...
Space Based Information Support for Decentralised Planning (SIS-DP)-A case study in Balangir District,Odisha, India
Remote Sensing GIS Ortho-rectified Image Decentralized Planning
2014/12/16
The state government is now focusing on decentralized planning and created administrative infrastructure for Gram Panchayat (Village Community) level planning in participatory way. The people are now ...
长输天然气管道压气站SIS系统的应用与研究
压气站 安全仪表系统 安全仪表功能 紧急关断
2017/1/7
首先介绍安全仪表系统（SIS）的定义、典型的SIS系统结构，在对压气站的SIS系统和BPCS系统关系分析的基础上，提出了压气站SIS系统安全仪表功能(SIF) 体系. 根据安全功能体系将压气站的ESD控制功能分为全站紧急关闭、区域紧急关闭、 和单体设备紧急关闭四级，对每一级控制功能和适用范围进行了阐述。文后在研究压气站SIS系统应用的基础上提出了9项要在SIS系统设计、安装和运行等几个方面要注意的...
Hardness of SIS and LWE with Small Parameters
complexity theory foundations lattice techniques
2013/4/19
The Short Integer Solution (SIS) and Learning With Errors (LWE) problems are the foundations for countless applications in lattice-based cryptography, and are provably as hard as approximate lattice p...
食饵具有流行病的捕食 －被捕食(SIS)模型的分析
生态—流行病模型 渐近稳定 永久持续生存 传染病
2012/3/20
建立并分析了食饵具有流行病的生态—流行病（ Ｓ Ｉ Ｓ ） 模型， 讨论解的有界性， 得到了平衡点局部渐近稳定的充分条件。进一步分析了平衡点的全局稳定性， 得到了边界平衡点和正平衡点全局稳定的充分条件。
A note on Exact solution of SIR and SIS epidemic models
SIR and SIS Epidemiology Exact Solution
2011/2/25
In this article we have successfully obtained an exact solution of a particular case of SIR and SIS epidemic models given by Kermack and Mckendrick [1] for constant population, which are described by ...
Fast Algorithm to solve a family of SIS problem with l1 norm
SIS Lattice bounded multivariate polynomials linerization
2010/11/22
In this paper, we present a new algorithm, such that, for the small integer solution (SIS) problem, if the solution is bounded ( by an integer in l1 norm, which we call a bounded SIS (BSIS) problem,...