A proposed radar method for non-destructive investigation of Egyptian pyramids

2021 ◽  
Vol 63 (1) ◽  
pp. 12-19
Author(s):  
S Ivashov ◽  
T D Bechtel ◽  
V Razevig ◽  
L Capineri ◽  
M Inagaki

The study of ancient Egyptian monuments attracts the attention of experts from around the world. A recent event that confirms this is the discovery, using muon sensors, of previously unknown cavities in the Great Pyramid of Giza (or Khufu's Pyramid). Since it is unfeasible to directly confirm this discovery by drilling, another independent non-destructive method is necessary to confirm this discovery and provide accurate determination of the locations and shapes of the cavities. Following a literature review of the different methods used in evaluating cultural objects, this paper analyses a possible framework for simulation of a holographic radar for detecting openings or other unknown structures of interest to archaeologists/Egyptologists and the public.

Author(s):  
Lobna M. Abdel-Aziz ◽  
Ahmed A. Soror ◽  
Ahmed A. Hassan ◽  
Ahmed S. Ali ◽  
Ahmed A. Hafez ◽  
...  

Chlordiazepoxide is considered one of most important sedative and hypnotic benzodiazepines drugs which is currently used all over the world with the increased rate of anxiety drugs. In this literature review, we will introduce the pharmacological action of this drug in addition to most of up-to-date reported methods that have been developed for determination of chlordiazepoxide in its pure form, combined form with other drugs, combined form with degradation products, and in biological samples. Most of the reported analytical methods will focus on spectroscopic, chromatographic and electrochemical techniques.


2021 ◽  
Vol 28 (1) ◽  
pp. 49-60
Author(s):  
Rochani Nani Rahayu

The covid-19 outbreak in the world and in Indonesia since last March 2020, has caused the activities of most people to be carried out from home. The library is an institution that is obliged to carry out work from home. Therefore, a study was conducted to determine the activities carried out during the covid-19 pandemic. This research uses the literature review method. The data source used was EBSCOhost which was accessed fro the E-Resources of the National Library of Indonesia on May 6, 2020. The search used the keyword covid-19 and objectives. The data obtained from the search results are then analyzed against each article with the aim of solving and identifying important information contained therein. Furthermore, the synthesis of all the articles obtained is carried out, namely integrating and identifying conclusions that can be drawn from all articles. Based on the results obtained, it can be concluded that abroad, during the covid-19 pandemic, both public libraries, college libraries, although there are some closed, there are those who postpone activities, but they still provide services to users by utilizing various information technology platforms and social media. In addition to providing information services to users, libraries even provide infrastructure to be used as a place to distribute aid resources to communities affected by covid-19. The experiences of several librarians who are involved in the response to covid-19, such as the participation of a librarian in providing face shield can provide information to the public that librarians are also contributing to the prevention of the covid-19 outbreak.


Author(s):  
Bella Munita Sary ◽  
Masayu Fatiyah Nuraziimah ◽  
Nurhasanah Walijah

The rapid development of technology has had a massive impact in the use of new media in various parts of the world. Its goal is to help for  making it easier for people to live their daily lives. One of the new media that has recently become a favorite of the public, especially in Indonesia is a  podcast. In Indonesia, a Youtube podcast channel "Jeda Nulis" owned by Habib Husein Ja'far Al Hadar or Habib Ja'far is a new favorite among young adults. Habib Ja'far not only uses Youtube for its Jeda Nulis podcast, but also Spotify. This study aims to analyze the Jeda Nulis podcast and observes people’s responses to the Islamic da'wah strategy introduced by Habib Ja’far. The method used in this research is a literature review that includes the process of listening to and analyzing podcasts in "Jeda Nulis" YouTube channel as preaching media. The results of this study show that there are pros and cons to this podcast. The pro commentary has liked this podcast because of the way the preaching was delivered by Habib Husein Ja'far as well. On the other hand, there are also people who are uncomfortable with the podcast "Jeda Nulis” in accordance with the content and  many people who feel that they are inferior to him.


Author(s):  
Joseph W. Krynicki ◽  
Lujian Peng

Reliable and accurate NDE (Non-Destructive Evaluation) techniques are required to conduct FFS (Fitness-For-Service) assessments for crack type flaws in equipment. FFS assessments rely on certain flaw detection and flaw sizing assumptions which can only be provided through NDE. The detection and sizing provided by the NDE work is highly dependent on both inspection methodology (e.g., operator, equipment, and procedure) as well as the specific component and application (e.g., part thickness and geometry, flaw type, damage mechanism, etc.). Therefore, the accurate determination of these detection and sizing assumptions requires thorough consideration, modeling, assessments, and determination by NDE specialists. This paper will describe factors that affect flaw detection and sizing results by NDE, the use of synthetic flaws to assess and improve NDE performance, the verified performance of advanced NDE techniques on natural flaws, and the integration of NDE performance results with FFS assessments.


1965 ◽  
Vol 18 (4) ◽  
pp. 391-401 ◽  
Author(s):  
Eric G. Forbes

Soon after the middle of the eighteenth century, improvements in the design and construction of astronomical and nautical instruments, coupled with the increased accuracy of tables of the Moon's motion, at last made the accurate determination of longitude at sea by lunar distance a practical possibility. The Astronomer Royal, Nevil Maskelyne, was quick to appreciate the importance of publishing the calculated solar and lunar ephemerides, together with other relevant tables and explanations, in the form of a Nautical Almanac, which was first printed under his supervision in 1766 and immediately distributed to mariners in different parts of the world. The present article is concerned with the circumstances relating to the origin and development of this publication during the first fifty years of its existence.


Author(s):  
ALİ AKPEK

Accurate determination of the viscosity behavior of fluids is extremely important, especially for biomedical and clinical applications. For example, blood viscosity is used to detect cardiovascular diseases in patients. Like blood, all body fluids and biochemical solvents used in biomedical studies are very limited resources. Therefore, a viscometer that is especially focused for biomedical and clinical applications should have the ability to obtain viscosity results from a reservoir as small as possible, in a range as wide as possible and in a period of time as short as possible. The measurements must be accurate even when the fluid temperatures shift swiftly and the test fluids pass throughout the viscometer continuously. Thus, it would be a huge advantage if a viscometer had the capability to measure simultaneously dynamic viscosity, kinematic viscosity, static viscosity, and density. However, there is no viscometer in the world that can achieve these goals. In this study, a novel electromagnetically levitated vibrational viscometer is designed to solve this problem.


2019 ◽  
Vol 3 (2) ◽  
pp. 154
Author(s):  
Yosi Aryanti

<p class="abstrak"><em><span>The phenomenon of lesbian, gay, bisexual and transgender (LGBT) in millennial times is no longer considered a new thing in society. Previously these behaviors were considered strange for some people, but in an age of increasingly sophisticated technology, this has become commonplace. Today many have openly stated and identified themselves as the identity of LGBT people or as supporters of their development. This large wave of groups striving to be recognized in the eyes of the world has been carried out intensively and continuously. Indonesia as the largest Muslim cannot be separated from the influence and threat of LGBT. This study aims to explore how the phenomenon of LGBT development and illustrate how solutions and efforts to prevent it. This research was compiled using a literature review approach related to LGBT studies. The results of the excavation found that the LGBT movement is no longer just an individual movement but has entered the public sphere. To overcome this condition, in addition to regulations relating to the movement of LGBT people, in the smallest environments in households must prepare methods and ways to prevent the presence of LGBT.</span></em></p>


2020 ◽  
Vol 1 (2) ◽  
pp. 156-173
Author(s):  
Alif Jumai Rajab ◽  
Muhamad Saddam Nurdin ◽  
Hayatullah Mubarak

The research is talking about a virus spread across the world with her being taken from the government and MUI as the Islamic regime. The government itself has issued a hand-to-hand lockdown system and also a PSBB or social distaff to fight the spread of the virus covid-19, so is the counter measures done by MUI by canceling traditional player in the mosque and by reducing Friday prayer in regular. Even though this circular became a pro and cons for most of society especially at the rings of MUI. The purpose of this research is to help the public understand whether the government’s existence and MUI’s treatment of the plague corresponds to or even contradicts the Islamic regime. Research methods will be used with literature literature review with the normative approarch and supported by the historial approach. Research shows that the rule imposed by the government and MUI in handling the outbreak did not include an investigation into Islam.


Kinesik ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 168-175
Author(s):  
Yulianti Bakari ◽  
Ikhtiar Hatta ◽  
Citra Dewi

This study presents an understanding of the role of advertising in shaping the world of shopping; therefore, the world of shopping does not only contain the transaction process in the buying and selling process. This study operationalizes the mimetic approach to analyzing the shopping phenomenon and advertising determinants. This study uses a research method that is generally carried out in anthropology, namely observation and interviews with consumers (especially teenagers) in Palu City. Besides that, it also develops deepening through the literature review. As a result, shopping today has become a lifestyle formed by the determination of advertising meaning that the advertising and shopping culture phenomena in this study are articulated as a phenomenon that intertwines to form a cultural system with its logic as a social phenomenon. As in Kaili's land, shopping expression certainly has its uniqueness amid the influence of globalization which encourages every consumer to follow a single image disseminated by advertisements.


Radiocarbon ◽  
2019 ◽  
Vol 61 (6) ◽  
pp. 1741-1748
Author(s):  
Jia Chen ◽  
Hongtao Shen ◽  
Kimikazu Sasa ◽  
Haihui Lan ◽  
Tetsuya Matsunaka ◽  
...  

ABSTRACTThe jungles of Linyun and Longlin Autonomous Prefecture, located in the heart of the southwestern Guangxi Zhuang Autonomous Region of China, are home to the oldest tea trees (Camellia sinensis) in the world. In the absence of regular annual rings, radiocarbon (14C) dating is one of the most powerful tools that can assist in the determination of the ages and growth rates of these plants. In this work, cores were extracted from large ancient tea trees in a central Longlin rain forest; extraction of carbon was performed with an automated sample preparation system. The 14C levels in the tree cores were measured using accelerator mass spectrometry (AMS) at the University of Tsukuba. These measurements indicated that contrary to conventional views, the ages of trees in these forests range up to ~700 years, and the growth rate of this species is notably slow, exhibiting a long-term radial growth rate of 0.039±0.006 cm/yr. It was demonstrated that 14C analyses provide accurate determination of ages and growth rates for subtropical wild tea trees.


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