55 research outputs found
KARAKTERISTIK METALURGI PADA ZAMAN ZULKARNAIN DALAM KAJIAN SAINS: BESI DAN TEMBAGA
No full textZulkarnain's story is found along the line of Al-Kahfi's letters. One of the most popular was when Zulkarnain was asked by the creatures living between the two mountains to stop the exit of yakjuj and makjuj the destroyer. Zulkarnain was asked to make fortifications or high walls as a barrier to the destroyer. By Iskandar Zulkarnain made a fort with pieces of hot iron doused with melted copper. The characteristics of the mixture of steel and copper when combined will produce a sturdy and strong steel iron. Some elements are combined with steel in order to improve the tensile ability of steel iron. In some studies, it is combining steel with copper. Copper alloy steel is expected to increase the attractiveness of the steel iron. This will be seen by obtaining existing data on the mixture between steel and copper. The purpose of this study is to find out the relationship between science and Zulkarnain's story and to know how the characteristics of the mixture of iron with copper in the manufacture of barrier walls. In the manufacture of barrier fortifications using casting techniques. For data collection through the study of literature. In collecting data, the author collects data and information related to the Quranic interpretation of iron and copper, characteristics of steel, characteristics of copper, foundry techniques, and quranic interpretation of the story of Zulkarnain through supporting data sourced from research journals. . The method used uses a qualitative method that contains descriptive explanations with existing data. The results of the research obtained that from several studies it is known that the alloy between copper metal and steel iron produces a strong steel attraction and has a high ultimate stress compare.d to without an alloy. The alloy also prevents from the effects of corrosion on iro
Deep Brain Stimulation (DBS) and Implant-friendly (IF) Mode Calculator
No full textRepository includes MATLAB codes. Raw input and and output files may be requested by emailing the author. The code that supports the findings of this study is openly available at https://github.com/AliSaMRI/DBS_IF_Mode_CalculatorThe purpose of this study is to present a strategy to calculate the implant-friendly (IF) excitation modes—which mitigate the radiofrequency (RF) heating at the contacts of deep brain stimulation (DBS) electrodes—of multi-channel RF coils at 7T.
Methods:
An induced RF current on an implantable electrode generates a scattered magnetic field whose left-handed circularly polarizing component (B1+) is approximated using a -mapping technique and subsequently utilized as a gauge for the electrode’s induced current. Using this approach, the relative induced currents due to each channel of a multi-channel RF coil on the DBS electrode were calculated. The IF modes of the corresponding multi-channel coil were determined by calculating the null space of the relative induced currents. The proposed strategy was tested and validated for unilateral and bilateral commercial DBS electrodes (directional lead, Infinity DBS system, Abbott Laboratories) placed inside a uniform phantom by performing heating and imaging studies on a 7T MRI scanner using a 16-channel transceive RF coil.
Results:
Individual IF modes nor shim solutions obtained from IF modes did not induce significant temperature increase when used for a high-power Turbo Spin Echo sequence. In contrast, shimming with the scanner’s toolbox (i.e., based on per-channel B1+ fields) resulted in a more than 2°C temperature increase for the same amount of input power.
Conclusion:
A strategy for calculating the IF modes of a multi-channel RF coil is presented. This strategy was validated using a 16-channel RF coil at 7T for unilateral and bilateral commercial DBS electrodes inside a uniform phantom.Sadeghi-Tarakameh, Alireza; DelaBarre, Lance; Zulkarnain, Nur Izzati Huda; Harel, Noam; Eryaman, Yigitcan. (2023). Deep Brain Stimulation (DBS) and Implant-friendly (IF) Mode Calculator. Retrieved from the University Digital Conservancy, https://doi.org/10.13020/h56h-bd77
Maintenance management on public facilities by local authorities / Eddie Zulkarnain Said
No full textAs we know, many people lived in cities. On behalf of that, cities should have a complete facilities accommodation within it. Among them are the recreation parks that have many uses for outdoor activities. Recreation parks can gives human satisfaction, which they can have fresh air while doing many beneficial activities with family and friends. These outdoor activities also increase the social among human. Many recreation parks nowadays have been built to fulfill the demand of the people. With the presence of other utility equipped at the park it can increase the economy of the country because of the tourist; local or international visit many recreational parks in this country. There are many recreation parks based or back to the basic which involves the nature source for instance trees,-lake, flowers and other nature sources. And so of that, development has taken place at the said areas which it needs to be maintained for public uses day by day. In short, this dissertation will study on the Maintenance Management on public facilities by Local Authorities and it is hoped that author can come out with rationale solution and recommendation regarding the study area
Traumatic Coronary Artery Dissection as A Potential Cause of Acute Myocardial Infraction in Motorcycle Accident
No full textBackground: Chest pain in blunt chest trauma can be caused by various intrathoracic injuries. Pneumothorax, hemothorax, and rib fractures are commonly seen in the emergency department. Although cardiac involvement is very rare, the probability should not be excluded.
Case Illustration: A-31-years-old male who complained of chest pain and diaphoresis was brought to the emergency department after a high-speed motorcycle collision. Chest X-ray revealed no abnormality but a 12-lead Electrocardiogram (ECG) demonstrated ST-segment elevation in lead I, AvL, V2-6, and atrial fibrillation. Because of the unusual presentation, the decision was to proceed with percutaneous coronary intervention (PCI). Coronary Angiography detected a thrombus at proximal LAD and spiral dissection at mid LAD (TIMI 2 Flow). After the procedure, he was transferred to the High Care Unit.
Conclusion: Following blunt chest trauma, chest pain in the setting of a vehicle collision can be caused by dissection of the coronary artery. Prompt cardiac workup (ECG, cardiac enzyme, and echocardiography) must be done in a highly suspected patient
Teologi Islam dan Fanatisme Perilaku Sosial Beragama
No full textFanatic is a term used to refer to a belief or a view of something positive or negative, which view does not have a theoretical backing or a foundation of reality, but is profoundly embraced so that it is difficult to straighten or change. The root problem of this discussion is the fanatical attitude of religious people, and the low level of understanding of religion, because they only see an event from a narrow perspective without seeing the consequences of what is caused. The weak self-confidence of adherents of religion to the teachings of religion that have been adopted since he was in a family environment, so easily influenced by the factors of fanaticism. As a believer in an individual religion must have a firm belief in the religion he has adopted and has been deemed correct according to the Act of government. The aim of the author to raise this phenomenon is to describe the mindset of an individual who is fanaticism-oriented, would this attitude undermine social interaction, or even fanaticism is a phenomenon that is mushrooming in the future
Implementation of Ecohouse and ecoliving concept in architecture - SASAK traditional settlement
No full textTHE THOUGHT OF KH IMAM ZARKASYI ON MULTICULTURAL EDUCATION AT MODERN ISLAMIC BOARDING SCHOOL GONTOR PONOROGO
No full textKH. Imam Zarkasyi is one of the founders of Islamic Boarding School “Darussalam” Gontor (PMDG) and at once became a national figure. Author describes multicultural education in the perspective KH Imam Zarkasyi, then take measurements on the practice of multicultural education in PMDG. This study suggests, since KH. Imam Zarkasyi PMDG founded in 1926 have established an atmosphere of multicultural education are covered by the system of formal curriculum and daily life activities. Under the existing system, Pondok Modern Gontor potential to develop multicultural education insightful and worthy of being an example of successful implementation of multicultural education in Indonesia. It can be seen from classroom practice, exchange dormitory, five principal of boarding, interaction between the consulate, and the synthesis of education applied in Pondok Modern Gontor for many years.</p
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