Babcock & wilcox
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This document summarizes a Babcock & Wilcox boiler. It provides a brief history of the boiler, noting that Stephen Wilcox and George Herman Babcock patented the first non-explosive boiler using water-filled tubes in 1867. The boiler generates steam at pressures above 10 bar and capacities higher than 7,000 kg/hr. It has a very high steam generation capacity between 2,000 to 40,000 kg/hr and allows for easy replacement of defective tubes while requiring less space than fire-tube boilers.
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Boilers have several uses including generating steam to drive turbines for electricity production, and to provide steam for heating, cooling and industrial processes. Boilers can be classified based on their orientation, water and gas flow design, furnace location, circulation method, pressure rating, mobility, and number of tubes. Common boiler types include fire tube boilers like Cochran and Lancashire where gases pass through tubes and water surrounds them, and water tube boilers like Babcock & Wilcox where water passes through tubes and gases surround them. Each boiler type has advantages like efficiency, capacity, and cost, but also limitations regarding pressure, size, and complexity.
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留信网认证的作用:
1:该专业认证可证明留学生真实身份
2:同时对留学生所学专业登记给予评定
3:国家专业人才认证中心颁发入库证书
4:这个认证书并且可以归档倒地方
5:凡事获得留信网入网的信息将会逐步更新到个人身份内，将在公安局网内查询个人身份证信息后，同步读取人才网入库信息
6:个人职称评审加20分
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综上所述，办理(爱大毕业证书)爱荷华大学毕业证【微信：741003700 】是证明身份和学历的高价值文件。外观简单庄重，格式统一，包括重要的个人信息和发布日期。对持有人来说，妥善保管是非常重要的。
Electric vehicle and photovoltaic advanced roles in enhancing the financial p...
Climate change's impact on the planet forced the United Nations and governments to promote green energies and electric transportation. The deployments of photovoltaic (PV) and electric vehicle (EV) systems gained stronger momentum due to their numerous advantages over fossil fuel types. The advantages go beyond sustainability to reach financial support and stability. The work in this paper introduces the hybrid system between PV and EV to support industrial and commercial plants. This paper covers the theoretical framework of the proposed hybrid system including the required equation to complete the cost analysis when PV and EV are present. In addition, the proposed design diagram which sets the priorities and requirements of the system is presented. The proposed approach allows setup to advance their power stability, especially during power outages. The presented information supports researchers and plant owners to complete the necessary analysis while promoting the deployment of clean energy. The result of a case study that represents a dairy milk farmer supports the theoretical works and highlights its advanced benefits to existing plants. The short return on investment of the proposed approach supports the paper's novelty approach for the sustainable electrical system. In addition, the proposed system allows for an isolated power setup without the need for a transmission line which enhances the safety of the electrical network
Null Bangalore | Pentesters Approach to AWS IAM
#Abstract:
- Learn more about the real-world methods for auditing AWS IAM (Identity and Access Management) as a pentester. So let us proceed with a brief discussion of IAM as well as some typical misconfigurations and their potential exploits in order to reinforce the understanding of IAM security best practices.
- Gain actionable insights into AWS IAM policies and roles, using hands on approach.
#Prerequisites:
- Basic understanding of AWS services and architecture
- Familiarity with cloud security concepts
- Experience using the AWS Management Console or AWS CLI.
- For hands on lab create account on [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
# Scenario Covered:
- Basics of IAM in AWS
- Implementing IAM Policies with Least Privilege to Manage S3 Bucket
- Objective: Create an S3 bucket with least privilege IAM policy and validate access.
- Steps:
- Create S3 bucket.
- Attach least privilege policy to IAM user.
- Validate access.
- Exploiting IAM PassRole Misconfiguration
-Allows a user to pass a specific IAM role to an AWS service (ec2), typically used for service access delegation. Then exploit PassRole Misconfiguration granting unauthorized access to sensitive resources.
- Objective: Demonstrate how a PassRole misconfiguration can grant unauthorized access.
- Steps:
- Allow user to pass IAM role to EC2.
- Exploit misconfiguration for unauthorized access.
- Access sensitive resources.
- Exploiting IAM AssumeRole Misconfiguration with Overly Permissive Role
- An overly permissive IAM role configuration can lead to privilege escalation by creating a role with administrative privileges and allow a user to assume this role.
- Objective: Show how overly permissive IAM roles can lead to privilege escalation.
- Steps:
- Create role with administrative privileges.
- Allow user to assume the role.
- Perform administrative actions.
- Differentiation between PassRole vs AssumeRole
Try at [killercoda.com](https://killercoda.com/cloudsecurity-scenario/)
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Babcock & wilcox
- 2. Presented by Md. Mizanur rahman Khulna university of engineering & technology (KUET) Department of industrial engineering & management(IEM) Roll: 1311054
- 3. CONTAINS
- 4. Introduction 1. This is an example of water tube boiler and is used in stationary and marine engine. 3. This boiler is used when pressure is above 10bar and steam generating capacity is required higher then 7000kg/hr.
- 5. History In 1867, Providence, Rhode Island, residents Stephen Wilcox and his partner George Herman Babcock patented the Babcock & Wilcox Non- Explosive Boiler, which used water filled tubes and de- nucleate boiling to generate steam more safely than either under-fire or fire-tube boilers. In 1891, Babcock & Wilcox Ltd is established as a separate United Kingdom company, to be responsible for all sales outside the US and Cuba.[7]
- 6. HISTORY Babcock & Wilcox Co. works, Bayon ne, New Jersey, circa 1919
- 7. HISTORY 1913 Babcock & Wilcox boiler section
- 12. Advantages The steam generation capacity of the boiler is very high about 2000 to 40000 kg/hr. Replacement of defective tubes is easy. Boiler is required less space area compared to fired tube boilers. It is used in power station for generating large quantity of steam.