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Theories and methods of highway speed design. Book Review

"Theory and Method of Designing the Speed ​​of Highway Operation" is a book published in June 2010 by the People's Communications Publishing House.

 

Book name:    Theory and method of highway speed design

Author:    Wang Shuangjie, Zhou Ronggui, Sun Xiaoduan

ISBN:    9787114085123

Category:    Transportation

Number of pages:    250

Publishing house:    China Communications Press

Date of publish:    2010-06-01

Framing:    Paperback

Open:    16 open

 

Brief introduction of

"Road speed design theory and method" is written based on the author's years of relevant scientific research accumulation and the latest research results, and strives to reflect the latest theory and technology of current road speed.

The charts, data and conclusions contained in "Theory and Method of Highway Operation Speed ​​Design" are obtained through a large number of representative field tests of actual vehicles, indoor simulation system simulation, special engineering project trial design inspection and other studies.

Theories and Methods of Highway Speed Design

The main contents are: basic theory of highway operation speed, highway operation speed models at all levels, highway operation speed safety design technology, highway operation speed safety evaluation technology, highway speed limit and speed control technology, etc.

The book provides a complete set of technologies including highway design theory, key technologies, applicable methods and index systems.

"Highway Operation Speed ​​Design Theories and Methods" is informative and rich in content.

It can be used as a reference for technical personnel related to highway survey and design, scientific research, and construction management.

It is also suitable for relevant professional teachers and graduate students in universities and scientific research institutions.


Which are the top ten Android phone viruses?

Introduction: As network traffic on mobile devices grows, so do viruses against mobile phones. So, what are the top ten mobile phone viruses in Android? Let's take a look at online virus knowledge with everyone.

 

About the top ten Android phone virus

With the rapid development of mobile communication networks, smart phones equipped with 4g have become the direction of rapid development of mobile terminals. So, what are the top ten Android phone viruses?

 

Top 10 Android phone viruses:

 

1. Hundred Brains Trojan

Threats: promoting apps, subscribing to chargeback services, turning off security software, difficult to uninstall, anti-virtual machines

 

Hundred-brain virus began to break out in the second half of 2015. During this period, 360 Mobile Security Center continued to receive feedback from users that mobile phones were inexplicably downloaded and installed other applications, as well as automatic subscription deductions and other issues.

 

2. Lizard tail Trojan

Threats: Infecting system library files, replacing system files, injecting system processes, stealing user information, monitoring calls and text messages, subscribing to chargeback services

 

The "Lizard's Tail" Trojan is an evolution of the three generations of "Elder Trojan". The main malicious behavior has evolved from three generations of popularized APPs to monitoring phone messages and subscribing to SP deduction services. According to some user feedback, the monthly deductions amount to hundreds of yuan.

 

3. Fakedebugderg Trojan

Threats: Disguise the system process, silently promote other applications, causing the mobile phone to run slower, loss of traffic, the phone's power consumption is fast, and may even spread other Trojan viruses.

 

From the discovery of the elder Trojan a few years ago, until now, the "FakeDebuggerd" family is very active. Although there are no technical highlights, this virus is easy to implement and has a high success rate, so it is used by many criminals.

 

Android Mobile Phone Virus

4. Ghost push

Threats: replacing system files, promoting apps, subscribing to fee deduction services

 

The Trojan disguised common applications, spread through the application market such as googleplay (off the shelf), through the silent elevation of rights, with the root permissions to implant the underlying virus into the system.

 

5. Permission killer

Threats: built-in ROM, anti-security software, monitoring SMS, playing advertisements, promotion, flash traffic

 

Since 2013, the ROM-level embedded mobile phone virus "permission killer" has been successfully updated with nearly 300 ROMs and spread in some flash market through continuous update of variants, which has affected as many as 500,000 domestic users.

 

6. Andma

Threats: self-protection, execution of instructions issued by the cloud, promotion of APP

 

This Trojan has a low technical content, and its main purpose is to access the cloud to obtain an application download list after running, for malicious promotion. At the same time, it monitors its own related file changes to prevent itself from being cleared by security software.

 

7. Candy Trojan

Threats: disguise system files, upload user privacy, silently promote APP

The Trojan is embedded in the secondary packaged applications such as "Ju discount", "Mobile Cooling Master", and "KMPlayer" in the form of plug-ins, which confuse users who don't know the truth to download and install.

Once the user opens these applications, the Trojan will be released to the system / system / bin directory, disguised as zprop, boot_logo_updater, etc., and implant their own data files in the user / data directory.

The Trojan has the functions of downloading, enabling applications, deleting applications, and terminating the process. Without the user's knowledge, the APP promotes profits.

 

8. Wan Lan Trojan

Threats: Built-in ROM, execution of cloud instructions, promotion of APP

 

In mid-May 2015, the Security Center received feedback from users that mobile phones often automatically install new game applications. After analysis and investigation, it was discovered that a ROM-class mobile phone Trojan called "Wan Lan" is extending its devil's claws to users, and it is profiting through silent promotion.

 

9. FakeSysCmd

 

Threats: disguise system files, steal user privacy, maliciously promote, counter security software

 

The Trojan family pretends to replace system commands such as pm, adb_server, and sz. For example, pm is the system's software package management program. After the Trojan replaces the program, it can monitor and install and uninstall the APP by itself, or even disable security software.

 

10. Asshole

Threats: Silent elevation of rights, theft of user privacy, rogue promotion.

 

The Trojan author maliciously used the open source root framework. After the second packaging and compilation, the virus was embedded into common software or pornography in the form of a plug-in and spread through the software market or pornographic websites.

According to the data monitored by 360 Security Center, the Trojan often disguised as "ticket grabbing artifact", "traffic statistics", "look at midnight" and so on.

Once users use these software, this Trojan program will be implanted in the system directory and get the root permissions of the mobile phone without the user's knowledge, and download other Trojans or malware from the network, which is extremely harmful.

 

Conclusion

The above is the answer to what the top ten mobile phone viruses for Android are for you. For your reference, I will introduce how to remove and prevent mobile phone system viruses later. Please visit Baibai Safety Net to pay more attention to network virus knowledge.

 


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What is Halal Certification?

 

Definition of Halal: The word Halal means: "License, recognition, approval, approval, consent, legal permission, legal or legitimate."

 

What is Halal?

When used in connection with food or beverages, no matter what form, it means that it is allowed and suitable for Muslim consumption.

 

As a food or drink of Halal, it must be in accordance with the Islamic dietary laws, in the Koran, the Prophet Mohammed ’s words and deeds (proverbs) and its Islamic rules (tradition), and in the Islamic jurist Fiqh ( Doctrine): "Hanafi, Sahfi'i, Malki, Hanbali, etc." Other regulations came from Ijma '(collectively agreeing to scholars) and Qiyas (similar) Islamic scholars.

 

The Halal Certification Authority (HCA) certifies products that meet the above conditions, so certified products can be accepted by all Muslim believers.

 

Halal products

The whole and part of a product are in line with the following, it is regarded as a Halal product.

 

1. There is no substance or ingredient that does not contain any animal or ingredient obtained or extracted from Haram (unlawful food regulated by Islamic law).

 

2. Use utensils, equipment and / or machines that have been purified according to Islamic teachings for processing, production, manufacturing and / or storage.

 

3. During preparation, manufacturing, production, processing and / or storage, there must be no contact with, contact with, or proximity to Haram (non-legal food regulated by Islamic law) substances. 

 

Islamic Halal Certified Products Logo

What is Haram?

Definition of Haram: The word Haram means: "Not allowed, not recognized, not approved, not approved, not agreed, not allowed by law, illegally, illegally or unjustly."

 

When used in connection with food or beverages, no matter what form, it means that it is not allowed and is not suitable for Muslim consumption.


Haram products

A product that is in contact with or whose whole or part contains the following is considered a Haram product.

 

1. Animals not slaughtered by Halal

 

2. Pig, dog, donkey or carnivores

 

3. Animals killed by slaughtering, hitting the head (such as clubbing), falling, natural death (carrion), congestion, or being attacked by other animals

 

4. Animals with prominent canine teeth such as monkeys, cats and lions.

 

5. Amphibians, such as frogs and crocodiles.

 

6. Unwelcome insects, such as worms, flies and cockroaches.

 

7. Birds that use their paws to prey, such as owls and eagles.

 

8. Alcohol, harmful substances, toxic and intoxicating plants or beverages.

 

9. Blood

 

Production guide for Halal certified products

1. Before the preparation of Halal products, all equipment, machines, utensils, stoves, containers, benches and ovens used for the preparation of Halal products should be cleaned under supervision.

 

2. The storage room and preparation area used to prepare Halal products should be isolated.

 

3. The storage, preparation, heating and / or cooking of Halal products should be performed under supervision.

 

4. Halal and non-Halal products should not be prepared, mixed, cooked or heated in / on the same equipment at the same time.

 

5. Raw, unprocessed seafood, vegetables and fruits do not have to be Halal certified and can be obtained from any supplier.

 

6. All raw, frozen, dried, processed and prepared ingredients required for the preparation of Halal products are different from Article (5) above and should be purchased from a Halal approved supplier and stored in the storage room It is isolated from other unacceptable ingredients.

 

7. Any product, ingredient or finished product that is not recognized or certified cannot be used in the preparation of Halal products.

 

8. Halal products exposed to non-Halal products during processing will not be considered, labeled or sold as Halal.



Halal Slaughter Guide

Condition:  The conditions required for the slaughter of Halal animals and birds are as follows:

1. The slaughterhouse or factory must be strictly and continuously supervised by a Halal certified person.

 

2. Before any production begins, the plant, machinery and equipment must be cleaned in accordance with Sharia law (law).

 

3. The butcher must be an adult and mentally healthy devout Muslim believer. He fully understands the basic principles and conditions of Halal slaughter and is recognized by religious institutions.

 

4. Only qualified live animals and live birds can be slaughtered.

 

5. Slaughtering must be done manually using a stainless steel knife.

 

6. After each slaughter, the factory must be able to provide clean water to rinse the knife.

 

7. The butcher must cut off the respiratory tract (of live animals and live birds), esophagus and jugular vein.

 

8. Animals and birds must die completely before peeling.

 

9. Only Halal animals and birds can be slaughtered by Halal.

 

 

See Also: Islam Religion

 

 

 

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