Journal issued Three times per years

---

• Managing editor : 1

  Name	Country
  Sadiq Hassan Khoreem nano@misd.tech publisher@misd.tech	Yemen

• Editorial board members :3

  Name	Country
  Saffanah Khuder Mahmood	Iraq
  Heba Ibrahim Mohamed Ragab Isawi	Egypt
  Ahmed Nasr Mohamed Alabssawy	Egypt

---

Number of Visitors: 31513
Number of registered: 872

---

Register in the journal

Copyright and Licensing

All content in this Site, including site layout, design, images, programs, text and other information (collectively, the "Content") is the property ofThe Scientific Institute for Advanced Training and Studies(SIATS) and its affiliated companies or licensors and is protected by copyright and other intellectual property laws, except that the copyrights in the content of the submissions delivered to SIATS through this Site remain the property of their authors until transferred to SIATS. For more information, you may not copy, display, distribute, modify, publish, reproduce, store, transmit, create derivative works from, or sell or license all or any part of the Content, products or services obtained from this Site in any medium to anyone, except as otherwise expressly permitted under applicable law or as described in these Terms and Conditions or relevant license or subscriber agreement.
You may print or download Content from the Site for your own personal, non-commercial use, provided that you keep intact all copyright and other proprietary notices. You may not engage in systematic retrieval of Content from the Site to create or compile, directly or indirectly, a collection, compilation, database or directory without prior written permission from SIATS.
You agree that you will not use any robots, spiders, crawlers or other automated downloading programs or devices to: (1) continuously and automatically search or index any Content, unless authorized by us; (2) harvest personal information from the Site for purposes of sending unsolicited or unauthorized material; or (3) cause disruption to the working of the Site. If this site contains robot exclusion files or robot exclusion headers, you agree to honor them.
Any questions about whether a particular use is authorized and any requests for permission to publish, reproduce, distribute, display or make derivative works from any Content should be directed to SIATS.
You may not use the services on the Site to publish or distribute any information (including software or other content) which is illegal, which violates or infringes upon the rights of any other person, which is abusive, hateful, obscene, profane, pornographic, threatening or vulgar, which contains errors, viruses or other harmful components, or which is otherwise actionable at law. SIATS editors may at any time exercise editorial control over the content of any information or material that is submitted or distributed through its facilities and/or services.
You may not, without the approval of SIATS, use the Site to publish or distribute any advertising, promotional material, or solicitation to other users of the Site to use any goods or services. For example (but without limitation), you may not use the Site to conduct any business, to solicit the performance of any activity that is prohibited by law, or to solicit other users to become subscribers of other information services. Similarly, you may not use the Site to download and redistribute public information or shareware for personal gain or use the facilities and/or services to distribute multiple copies of public domain information or shareware.

Access to articles
Articles appearing in journals published by SIATS are 'open access'.
1. The article is universally and freely accessible via the Internet, in an easily readable - in at least one widely and internationally recognized open access repository (such as PDF).
2. The author(s) or copyright owner(s) irrevocably grant(s) to any third party, in advance and in perpetuity, the right to use, reproduce or disseminate the research article in its entirety or in part, in any format or medium, provided that no substantive errors are introduced in the process, proper attribution of authorship and correct citation details are given, and that the bibliographic details are not changed. If the article is reproduced or disseminated in part, this must be clearly and unequivocally indicated.
3. Articles in SIATS journals are published under the Creative Commons Attribution license (CC-BY) to ensure implementation of open access as defined.

License agreement
In submitting an article to any of the journals published by SIATS I certify that;
1. I am authorized by my co-authors to enter into these arrangements.
2. I warrant, on behalf of myself and my co-authors, that:
o the article is original, has not been formally published in any other peer-reviewed journal, is not under consideration by any other journal and does not infringe any existing copyright or any other third party rights;
o I am/we are the sole author(s) of the article and have full authority to enter into this agreement and in granting rights to SIATS are not in breach of any other obligation;
o the article contains nothing that is unlawful, libellous, or which would, if published, constitute a breach of contract or of confidence or of commitment given to secrecy;
o I/we have taken due care to ensure the integrity of the article. To my/our - and currently accepted scientific - knowledge all statements contained in it purporting to be facts are true and any formula or instruction contained in the article will not, if followed accurately, cause any injury, illness or damage to the user.
3. I, and all co-authors, agree that the article, if editorially accepted for publication, shall be licensed under the Creative Commons Attribution License 4.0. In line with SIATS Open Data Policy, data included in the article shall be made available under the Creative Commons 1.0 Public Domain Dedication waiver, unless otherwise stated. If the law requires that the article be published in the public domain, I/we will notify SIATS at the time of submission, and in such cases not only the data but also the article shall be released under the Creative Commons 1.0 Public Domain Dedication waiver. For the avoidance of doubt it is stated that sections 1 and 2 of this license agreement shall apply and prevail regardless of whether the article is published under Creative Commons Attribution License 4.0 or the Creative Commons 1.0 Public Domain Dedication waiver.
[End of BMC’s license agreement]

_______________________________________________

Explanatory notes regarding SIATS license agreement
As an aid to our authors, the following paragraphs provide some brief explanations concerning the Creative Commons licenses that apply to the articles published in SIATS-published journals and the rationale for why we have chosen these licenses.
In the following, we provide the licenses’ summaries as they can be found on the Creative Commons website. The Creative Commons Attribution License 4.0 provides the following summary (where ‘you’ equals ‘the user’):
You are free to:
• Share — copy and redistribute the material in any medium or format.
• Adapt — remix, transform, and build upon the material for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
• Attribution— you must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
• No additional restrictions—you may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.


Notices
You do not have to comply with the license for elements of the material in the public domain or where your use is permitted by an applicable exception or limitation.
No warranties are given. The license may not give you all of the permissions necessary for your intended use. For example, other rights such as publicity, privacy, or moral rights may limit how you use the material.
Please note: For the terms set in italics in the summary above further details are provided on the Creative Commons web page from which the summary is taken (http://creativecommons.org/licenses/by/4.0/).
The Creative Commons 1.0 Public Domain Dedication waiver provides the following summary:

No copyright
The person who associated a work with this deed has dedicated the work to the public domain by waiving all of his or her rights to the work worldwide under copyright law, including all related and neighbouring rights, to the extent allowed by law.
You can copy, modify, distribute and perform the work, even for commercial purposes, all without asking permission. See Other information below.

Other information
• In no way are the patent or trademark rights of any person affected by CC0, nor are the rights that other persons may have in the work or in how the work is used, such as publicity or privacy rights.
• Unless expressly stated otherwise, the person who associated a work with this deed makes no warranties about the work, and disclaims liability for all uses of the work, to the fullest extent permitted by applicable law.
• When using or citing the work, you should not imply endorsement by the author or the affirmer.
Please note: for the terms set in italics in the summary above further details are provided on the Creative Commons web page from which the summary is taken (http://creativecommons.org/publicdomain/zero/1).