دانلود پاورپوینت A New Approach to Flow Network Analysis of an Engine Lubrication System

اختصاصی از فایل هلپ دانلود پاورپوینت A New Approach to Flow Network Analysis of an Engine Lubrication System دانلود با لینک مستقیم و پر سرعت .

In order to develop more efficient engines, it is essential to optimize the lubrication circuit of the power train systems.

Two elements have been added to the lubrication circuit in the modified engine. These elements are hydraulic lifters and an Anti-drain valve.

The analyses are done by Flowmaster7.6 and AVL EXCITE7.02 software and an accessory code.

Finally, theoretical results are validated by a completely controlled lubrication functional test.

Keywords:

Lubrication Circuit

Bearing Map

Chain Tensioner

Flowmaster

Journal Bearings

Introduction

Modern engines are being designed to operate at high engine speeds and loads. In order to fulfill the requirements of developing new engines, lubrication system must be improved.

Yiqing Yuan et al, in 2007, established a methodology for predicting lubrication flow in the rod bearings and oil circuits that can be used to guide engineering designs.

Yaguo Lu et al. [10], in 2009, developed a software for simulating aero-engine lubrication system.

In this paper, two important components, chain tensioner and anti-drain valve, have been investigated as well as other components in the lubrication system.

شامل 23 اسلاید powerpoint

Design Error: A Human Factors approach

اختصاصی از فایل هلپ Design Error: A Human Factors approach دانلود با لینک مستقیم و پر سرعت .

Ronald William Day
CRC Press LLC, 26 Sep 2016 - Design - 92 pages

size: 1 Mb  file: PDF

This book shows how to identify potential design errors and modify procedures in the design process to mitigate design-induced error. Real life examples are used to demonstrate the points being made. Many of the concerns raised in the book have come from a worldwide study conducted with designers, managers, and end-users.

Table of contents :
Content: Chapter 1. Design error ... can models help? --
Chapter 2. Common causes of design error --
Chapter 3. Who is the designer? --
Chapter 4. What is the design process? --
Chapter 5. Systems development life cycle models --
Chapter 6. Choosing an SDLC ... which cap to wear? --
Chapter 7. Where do design errors occur in the design process? --
Chapter 8. Human factors issues --
Chapter 9. Automation ... persistence of a myth --
Chapter 10. How artificial is Artificial Intelligence (AI)? --
Chapter 11. The solution is ...?

پاورپوینت درباره Syndromic Surveillance and Approach to Bioterrorism

اختصاصی از فایل هلپ پاورپوینت درباره Syndromic Surveillance and Approach to Bioterrorism دانلود با لینک مستقیم و پر سرعت .

فرمت فایل : POWER POINT (لینک دانلود پایین صفحه) تعداد اسلاید: 66 اسلاید

پاورپوینت انگلیسی همراه با ترجمه فارسی

Definitions :

• Syndrome

• Surveillance

• Approach

• Traditional Surveillance

      (Track diseases)

• Syndromic Surveillance

(Collects information about patients’ signs and symptoms)

مقدمه :

  از آنجا که طی طغیان‌ها و همه‌گیری‌های مرتبط با بیوتروریسم، معمولا فرصت کافی برای اثبات عوامل سببی و تشخیص قطعی (Confirmed) وجود ندارد ، لــذا با بهره‌گیری از مراقبت (Surveillance) و رویاروئــی  (Approach) با نشانگان بالینی (Syndromes) و استفاده از اقدامات پاراکلینیکیِ با پاسخ دهی سریع نظیر انواع رنگ‌آمیزی، تست‌های سرولوژیک آنتی‌ژنی، PCR ELISA, . . . و تصویر برداری‌های مختلف، به تشخیص‌های محتمل(Probable) می‌پردازیم و بر آن اساس، اقدامات درمانی و اپیدمیولوژیک لازم را آغاز می‌کنیم0  به عبارت دیگر در سیستم مراقبت سنّتی، معمولا به پیگیــری بیماری‌هــا پرداخته می‌شود در حالیکــه در سیستم مراقبت سندرومیک، اطلاعات مربوط به علائم و نشانه‌های موجود در بیماران، جمع‌آوری و پس از قراردادن مجموعه‌ای از آن‌ها در قالب‌های تعریف شده قبلی (نشانگان = سندروم) به تشخیص‌های محتمل و زودرس، دست می‌یابیم.  

Objectives :

•Early detection of possible events essential

•Most bioterrorism agents cause diseases that are rapidly fatal

•May be treatable in early stages or preventable with antibiotics,vaccination, or anti-sera

•If person-to-person transmission, early intervention may be best disease     prevention strategy

 

 

اهداف مراقبت و رویاروئی سندرومیک

• کشف سریع حوادث بیوتروریستی
• درمان به موقع بیماری‌هائی که سریعا منجر به مرگ می‌شوند
• انجام اقدامات پیشگیرنده، در تماس‌یافتگان بدون علائم بالینی (پیشگیری داروئی، واکسیناسیون، سرم‌درمانی و . . . )
• قطع زنجیره انتقال در بیماری‌های واجد حملات ثانویه

Practical Field Robotics A Systems Approach, Wiley, 2015, کتاب

اختصاصی از فایل هلپ Practical Field Robotics A Systems Approach, Wiley, 2015, کتاب دانلود با لینک مستقیم و پر سرعت .

Practical Field Robotics A Systems Approach, Wiley, 2015

مطالب کتاب:

1 Overview of Field Robotics 1
1.1 Introduction 1
1.2 Methodology 3
1.3 High-Level Decisions 3
Problems 4
Notes 4
2 A Mobile Robot System for Nuclear Service 7
2.1 Field Environment: Commercial Nuclear Plants 7
2.2 Field Work: Component Maintenance 8
2.3 Equipment Requirements 9
2.4 Conceptual and Operational Designs 12
2.5 Safety and Reliability 19
2.6 Detail Designs of the Service Arm 20
2.7 Detail Designs of the Walker 20
2.8 Conclusion 21
Problems 21
Notes 22
3 The Largest Mobile Robot in the World 23
3.1 Field Environment: Underground Mining 23
3.2 Field Work: Continuous Coal Haulage 25
3.3 Equipment Requirements 26
3.4 Conceptual and Operational Designs 29
3.5 Safety and Reliability 30
3.6 Detail Conceptual Designs 30
3.7 Conclusion 31
Problems 31
Note 31

4 A Mobile Robot for Mowing a Lawn 33
4.1 Field Environment: Suburban Lawns 33
4.2 Field Work: Navigation and Mowing 34
4.3 Equipment Requirements 34
4.4 Conceptual and Operational Designs 35
4.5 Safety and Reliability 37
4.6 Detail Conceptual Designs 37
4.7 High-Level Decisions 37
4.8 Conceptual Design—Technologies 38
4.9 Conceptual Design—Set Parameters 40
4.10 Conceptual Design—Operate Robot 42
Problems 42
Notes 43
5 The Next Levels of Functional Detail 45
5.1 Quantifying Conceptual Design 45
5.2 Quantifying Send Sound 46
5.3 Quantifying Receive Sound 53
5.4 Quantifying Interpret Sound 56
5.5 Design Choices—Setting Parameters 65
5.6 Select a Platform 66
5.7 Select Frequencies 68
5.8 Select Motions 70
Problems 72
Notes 72
6 Operate Robot 73
6.1 Control System 75
6.2 Control System Select Operation 76
6.3 All About main() 78
6.4 Control System—Control Motions 79
6.5 Control Motions—Rotate Motors 81
6.6 Control Motions—Design Infrastructure 83
6.7 Control Motions—Program Speeds 88
6.8 Control Motions—Move Robot 89
6.9 Control Motions—Sequence Motions 92
6.10 Control Information 92
Problems 102
Notes 103
7 Software Functions 105
7.1 Displays: To Place Needed Information to the User Screen 107
7.2 Field Data and Triangulation: Geometric Locating Functions 109
7.3 Operation: The Calls that Make the Robot Move and Stop 121
7.4 History and Diagnostics: The Immediate Past Used for Analysis 130
Problems 136
Note 137

Appendix A: Myth and Creativity in Conceptual Design 139
Appendix B: Real-World Automation Control through the USB Interface 159
Appendix C: Microchip Code for USB Board to PPM Translation 173
Appendix D: Selected Electronic Parts for Mowing Robot 179
Appendix E: Software Concordance 181
Appendix F: Solutions 187
Index 197