595 research outputs found
Microwave Sensing Dataset for Noninvasive Monitoring of Ventricle Enlargement due to Alzheimer's Disease
No full textThe research hypothesis for this study was to investigate the potential of microwave imaging using unidirectional antennas for monitoring neurodegenerative diseases, specifically Alzheimer's disease. The data was collected using a wearable device and measurement setup that included five lamb brain phantoms that were designed to mimic the lateral ventricle enlargement due to Alzheimer's disease .The data include both the magnitude and the phase for each of the five phantoms at each discrete frequency.The most interesting thing about this study is that the data from the microwave imaging with unidirectional antennas was able to accurately show the enlargement of the lateral ventricles and the presence of cerebral spinal fluid in the lamb brain phantoms. This suggests that this method could be used to track neurodegenerative diseases like Alzheimer's.This data can be interpreted and used by researchers and scientists working on developing novel signal processing and imaging techniques, as well as those interested in validating simulation results. It can also be used to further investigate the potential of microwave imaging for monitoring neurodegenerative diseases
Partial Discharge Characterization of HFO(E) Gas Using Ultra-High Frequency (UHF) Antenna for Medium Voltage Switchgear Application
No full textThe most frequent and dangerous hazard to the electrical insulation of high voltage (HV) and high field (HF) equipment is partial discharges (PD). The development of PD activity is both a cause and an indicator of insulation degradation, which could ultimately lead to insulation breakdown. For electrical power equipment to operate safely and dependably, continuous and efficient PD monitoring must be conveniently performed to prevent associated damages and any harm to electrical power equipment. This work presents the design of a new UHF antenna for detecting PD in medium-voltage gas-insulated applications. The working
frequency band of the proposed UHF antenna is 370 MHz–1300 MHz, which translates into a total bandwidth of 930 MHz UHF frequency band. Over the whole operating frequency of the antenna, the return loss is less than -10dB. Recently, an eco-friendly insulating gas, HFO1336mzz(E), is considered to be a good substitute for sulfur hexafluoride (SF6) in medium-voltage gas-insulated equipment (MV-GIE). The HFO(E) gas in
a mixture with CO2 can reach the dielectric strength of SF6 gas. Hence, the HFO(E)/CO2 gas mixture’s partial discharge properties are systematically investigated in this research work. In particular, a detailed examination focuses on the partial discharge extinction voltage (PDEV) and partial discharge inception voltage (PDIV) under varying electric field conditions at different gas pressure levels and mixing ratios. The PDIV of the HFO(E)/CO2 gas mixture exhibited a linear-saturation rising pattern with both mixing ratio and
gas pressure, mirroring the trend observed in SF6 when the HFO(E) gas concentration ranged between 25% and 30%
The Insulation Performance of Novel Refrigerant Gas as an Alternative to SF6 for Medium Voltage Switchgear
No full textGas-insulated systems are widely utilized in the electric power sector to transmit and distribute electrical energy. Sulphur-hexafluoride (SF6) has dominated gas insulation in high-voltage insulation technology since the early 60s. It is a greenhouse gas with a protracted lifespan in the atmosphere. This paper proposes an economical and comparatively more environmentally friendly R507 gas alternative to SF6 for
medium-voltage applications. R507 has been analyzed experimentally through power frequency breakdown and lightning impulse testing to validate the performance and theoretical concepts. R507 has a very low liquefication temperature of −46.7◦C, but it must still be mixed with buffer gases such as CO2, N2, or dry air to meet the diverse liquefaction temperature applications. Various field utilization factors under AC and lightning impulse voltages are used in the experiments, along with different electrode geometries, including sphere-to-plane and rod-to-plane (i.e., quasi-homogeneous and inhomogeneous electric field distribution).
For comparison, identical experiments are conducted with pure SF6. R507 gas was found to be a promising substitute for SF6 gas, with its dielectric strength being approximately 0.95 times that of SF6 gas. A positive synergistic effect is present between R507 and CO2, along with the good self-recoverability property of the gas mixture. The current research study serves as a fundamental resource for characterizing the R507/CO2 gas mixture insulation properties to be utilized in practical applications
KIPRAH BASUKI RAHMAT DALAM BIDANG MILITER TAHUN 1945-1966
No full textABSTRAK
Dalam penelitian yang berjudul “Kiprah Basuki Rahmat dalam Bidang Militer Tahun 1945-1966” ini terdapat beberapa permasalahan yang dikaji di antaranya yaitu mengenai latar belakang kehidupan Basuki Rahmat, faktor yang memengaruhi keputusan Basuki Rahmat untuk berkecimpung ke dalam bidang militer, dan kontribusi Basuki Rahmat terhadap negara Indonesia melalui bidang militer pada tahun 1945-1966. Tujuan dari penelitian ini adalah untuk memperoleh informasi yang jelas dan tepat mengenai permasalahan yang dikaji. Dalam penelitian ini, penulis menggunakan metode penelitian sejarah atau disebut juga sebagai metode historis yang terdiri dari empat tahapan, yaitu heuristik, kritik sumber, interpretasi, dan historiografi. Berdasarkan hasil penelitian, Basuki Rahmat merupakan seorang prajurit yang lahir pada 4 November 1921 di Tuban, Jawa Timur. Pendudukan Jepang dan kondisi Indonesia menjelang kemerdekaan menjadi faktor Basuki Rahmat berkecimpung dalam bidang militer. Kontribusi Basuki Rahmat melalui bidang militer dimulai pada tahun 1945 dalam usaha mempertahankan kemerdekaan Indonesia. Melalui kecakapan militer yang dimilikinya, Basuki Rahmat selalu ikut andil dalam berbagai peristiwa di Indonesia dari tahun 1945-1966, mulai dari perang kemerdekaan saat melawan Belanda, berbagai pemberontakan dalam negeri, operasi Irian Barat, Gerakan 30 September 1965, dan peristiwa paling bersejarah pada tahun 1966 mengenai Surat Perintah 11 Maret (Supersemar). Basuki Rahmat sebagai seorang pemimpin yang bertanggungjawab atas prajurit-prajurit di bawahnya memiliki sifat yang tenang, namun tetap tegas dalam menyikapi suatu permasalahan sehingga ia seringkali dipercaya untuk mengemban jabatan dengan tanggungjawab yang besar dalam bidang militer.
Kata Kunci: Basuki Rahmat, Perjuangan, Militer
ABSTRACT
In this research entitled “The Gait of Basuki Rahmat in the Military Field in 1945-1966” there are several problems studied, including the background of Basuki Rahmat’s life, the factors that influenced Basuki Rahmat’s decision to engage in the military field, and Basuki Rahmat’s contribution to the Indonesian state through the military field in 1945-1965. The purpose of this research is to obtain clear and precise information about the problems studied. In this research, the author uses historical research methods or also known as historical methods which consist of four stages, these include heuristics, source critism, interpretation, and historiography. Based on the result of the research, Basuki Rahmat was a soldier who was born on 4th November 1921 in Tuban, East Java. The Japanese occupation and the condition of Indonesia before independence became a factor in Basuki Rahmat’s involvement in the military. Basuki Rahmat contribution through the military began in 1945 in an effort to defend Indonesia’s independence. Through his military skills, Basuki Rahmat always took part in various events in Indonesia from 1945-1966, starting from the war of independence against the Dutch, various domestic rebellions, the West Irian operation, The 30 September 1965 Movement, and the most historic event in 1966 about the 11 March Order (Supersemar). Basuki Rahmat as a leader who was responsible for the soldiers under him had a calm nature, but was still firm in addressing a problem so that he was often trusted to take positions with great responsibility in the military.
Keywords: Basuki Rahmat, Struggle, Militar
PROSES KREATIF MAMAT RAHMAT DALAM KENDANG TARI TRADISI SUNDA
No full textABSTRAKMamat Rahmat adalah sosok pengendang tari tradisi Sunda yang pada saat ini masih konsisten dalam bidangnya sebagai pengendang. Kemampuannya dalam kendang tari tradisi Sunda banyak didedikasikan untuk ISBI Bandung karena telah memberikan penghidupan bagi dirinya. Di sisi lain, kemampuannya pun banyak diminta oleh sanggar sanggar tari yang ada di kota Bandung seperti Studio tari Indra, Pusbitari, dan sebagainya. Sebagai pengendang tari tradisi Sunda, ia mampu memberikan pengungkapan karakter dalam tari tradisi Sunda melalui tepakan kendangnya. Maka[PO1] tidaklah berlebihan dan sepantasnya apabila ia menyandang gelar sebagai maestro kendang tari. Dalam tulisan ini akan diungkap bagaimana proses kreatif Mamat Rahmat dalam mencapai kompetensinya sebagai pengendang tari Tradisi Sunda. Penulis akan mengupas pembahasannya melalui metode observasi dan wawancara. Adapun hasil dari penelitian ini adalah Mamat Rahmat mampu menjadi seorang pengendang tari Sunda yang kreatif, karena ditunjang oleh faktor keturunan (genetik), keterampilan, pengalaman, kepribadian, dan juga bisa menari.Kata Kunci: Mamat Rahmat, Proses Kreatif, Kendang Tari Sunda. ABSTRACTA Creative Process of Mamat Rahmat in Sundanese Traditional Dance Kendang, June 2020. Mamat Rahmat is a figure of drummer of Sundanese traditional dance who is still consistent in his field as a drummer. His skill in Sundanese traditional dance drums (kendang) is mostly dedicated to ISBI Bandung because he has been given his livelihood here. On the other hand, his skill has been much demanded by many dance studios in Bandung such as Indra dance studios, Pusbitari, and so on. As a drummer of Sundanese traditional dance, he is able to provide the expression of character in Sundanese traditional dance through his drum beat. So it is not excessive and appropriate if he bears the title as a maestro of dance kendang. In this paper, it will be revealed how is the creative process of Mamat Rahmat in achieving his competence as a drummer of Sundanese traditional dance. The author will explore the discussion through the method of observation and interviews. The result of this study shows that Mamat Rahmat is able to become a creativeSundanese dance drummer because he is supported by heredity (genetic), skills, experience, personality, and dancing ability.Keywords: Mamat Rahmat, Creative Process, Sundanese Dance Kendang. [PO1]Oleh sebab itu
Data-driven microwave imaging and processing techniques for monitoring neurodegenerative diseases
No full textNeurodegenerative diseases, such as Alzheimer’s disease (AD), affect cognitive functions and behaviour
due to the progressive loss of neurons in the human brain. Unfortunately, although medicines can help
relieve some of the symptoms, there is currently no cure for AD. Therefore, it is crucial to detect AD at
earlier stages, to stop or slow its progression. Currently, computed tomography (CT), magnetic resonance
imaging (MRI), and positron emission tomography (PET) are being used clinically to diagnose AD. These
imaging modalities can provide information about malignant brain tissue’s shape, location, and
size. However, they have many limitations. For instance, CT scans involve a higher dosage of ionising
radiation and are slower and more complex.Conversely, MRI generates high-quality images with a good
spatial resolution. The downside of MRI includes high equipment cost, system complexity, and longer
time required for data collection. Therefore, there is a need for wearable, non-invasive and portable
imaging devices that can monitor the progression of these diseases. It will allow patients to be treated
more conveniently at their homes.
In recent years, microwave imaging systems (MIS) have been widely investigated for medical imaging
such as breast cancer and brain stroke due to their potential to provide low-cost, portable and non-ionising
imaging devices. The detection and monitoring of neurodegenerative diseases is a recent application of
microwave imaging. A complete MIS consists of hardware and software components of equal importance
for accurate image reconstructions. The hardware components include the wearable device, Vector
Network Analyzer (VNA), and a personal computer (PC). The software components, which are the
topic of this thesis, include signal processing and imaging techniques. The collected microwave signals
are processed to generate images showing the object(s) under test. Numerous processing and imaging
algorithms have been proposed for breast tumour and brain stroke detection in recent years. These
processing and imaging techniques give promising results; however, they have several shortcomings
that needs to be addressed before they can be used to detect or monitor small changes in the brain caused
by neurodegenerative diseases. This thesis investigates the potential of data-driven signal preprocessing
and microwave imaging techniques to detect and monitor neurodegenerative diseases, especially AD.
The first stage of the study investigate and evaluate the existing confocal microwave imaging technique.
Various algorithms originally used for brain stroke and breast tumour detection are implemented and
considered to detect the AD changes in the brain. An integrated microwave image reconstruction (MIR)
algorithm is proposed based on a modified form of Microwave Imaging via Space-time (MIST). Novel
preprocessing techniques for clutter removal are integrated with the proposed imaging algorithm. The
algorithm is validated on real lamb brain phantoms that imitate whole-brain atrophy. The results show
that the proposed algorithm can detect and locate whole-brain atrophy with reasonable accuracy. The
second stage of the study is the development of a frequency-based imaging algorithm that solves multiple
issues with time-domain radar-based algorithms such as signal transformation, multi-speed and multipath.
A frequency-based multistatic imaging algorithm is proposed that integrates each component’s
frequency response to form an image. The algorithm compensates for both the amplitude and phase of
the scattered signals. It resolves dispersion and attenuation issues and therefore outperforms the timeshift
based algorithms. The algorithm is evaluated on both simulation and experimental data obtained
from brain phantoms that mimic the atrophy and CSF changes. Quantitative analysis and comparison
with conventional radar-based algorithms show that the proposed imaging algorithm can detect both
brain atrophy and changes in the thickness of CSF layers more accurately.
The third stage of the study explores how to optimise the image reconstruction algorithms. Multistatic
imaging algorithms such as multistatic MIST and delay multiply and sum (DMAS) cannot produce
images in an acceptable time due to intensive computation and sequential execution. A novel distributed
approach based on Apache Spark, which adopts both data and algorithm in parallel, is proposed for
efficient image reconstruction. The proposed parallel approach could be used to accelerate any computationally
intensive algorithm on a cluster having master-slave architecture.The last stage of the study
investigates ML-based methods to aid in classifying and monitoring different stages of neurodegenerative
disease based on physiological and pathological changes in the brain. A novel data augmentation method
is proposed to generate synthetic data for ML algorithms. Two feature extractions strategies are stipulated
and compared. Multiple ML techniques are trained using raw data, manually and automatically extracted
features to validate how well each algorithm could classify the AD stages. The results indicated that the
proposed ML-based method could be used to monitor AD at its early stages
Analysis of the Accuracy and Completeness of SINTA Author Data Extraction
No full textThe advancement of information technology has increased the use of web scraping for scientific data collection, including from the SINTA (Science and Technology Index) platform, which provides researcher profiles, affiliations, publications, and citation data. However, scraping SINTA poses challenges, particularly when multiple authors share identical scores that trigger changes in display order. This instability can lead to duplicated or missing entries when using a single-pass scraping approach. This study evaluates the accuracy and completeness of SINTA author data collection by implementing repeated scraping as a strategy to handle dynamic data ordering. Experiments were conducted on the Universitas Muslim Indonesia (UMI) affiliation, targeting 915 active authors. The methodology involved page-structure analysis, spider development using Python and Scrapy, sequential scraping through pagination, and validation of data completeness and uniqueness. A three-second delay between requests was applied to maintain responsible scraping practices. The results show that a single scraping attempt failed to retrieve all authors, capturing an average of only 877.2 authors (95.86%). Due to unstable ordering, repeated iterations were required. Through 4–8 scraping cycles per trial, all 915 authors were successfully collected without duplication. These findings indicate that for platforms with dynamic data structures such as SINTA, repeated scraping provides a more reliable method for ensuring data completeness and accuracy, supporting the development of stable and responsible publication-data automation systems.The advancement of information technology has increased the use of web scraping for scientific data collection, including from the SINTA (Science and Technology Index) platform, which provides researcher profiles, affiliations, publications, and citation data. However, scraping SINTA poses challenges, particularly when multiple authors share identical scores that trigger changes in display order. This instability can lead to duplicated or missing entries when using a single-pass scraping approach. This study evaluates the accuracy and completeness of SINTA author data collection by implementing repeated scraping as a strategy to handle dynamic data ordering. Experiments were conducted on the Universitas Muslim Indonesia (UMI) affiliation, targeting 915 active authors. The methodology involved page-structure analysis, spider development using Python and Scrapy, sequential scraping through pagination, and validation of data completeness and uniqueness. A three-second delay between requests was applied to maintain responsible scraping practices. The results show that a single scraping attempt failed to retrieve all authors, capturing an average of only 877.2 authors (95.86%). Due to unstable ordering, repeated iterations were required. Through 4–8 scraping cycles per trial, all 915 authors were successfully collected without duplication. These findings indicate that for platforms with dynamic data structures such as SINTA, repeated scraping provides a more reliable method for ensuring data completeness and accuracy, supporting the development of stable and responsible publication-data automation systems
مخزنِ اخلاق_اقوالِ حکمت اور حکایاتِ دانش کا خزانہ
No full text"Makhzan-e-Akhlaq" is a litrary collection of proverbs, sayings, aphorisms and epigrams. The compiler of this book Allama Mulana Rahmat Ullah Subhani was well known scholar and man of letters. One on easily examine his hardwork extensive study and sense of selection. "Makhzan-e-Akhlaq" is a unique book of useful and interesting sayings, verses on various aspects and literary jokes. In short "Makhzan-e-Akhlaq" is a mustread book which can change one's life
Literasi Menulis Sekolah Dasar (Studi Kasus di SD Plus Rahmat Kota Kediri)
No full textResearch Purpose. The research conducted by the author aims to describe the stages of wiritng liletacy in SD Plus Rahmat Kediri. Methods. This study uses a qualitative method, with the type of case study research at the 4-6 grade level at SD Plus Rahmat Kota Kediri. The number of informants was 8 people consisting of teachers, students, librarians, and school principals using the purposive sampling technique. Data collection techniques are carried out by observation, Interview and Documentation. Data Analysis. The data analysis technique uses the concept of Miles and Huberman: Reduction, Presentation and Drawing Conclusions. Result and Discussion. The results of the study show that there are 3 stages in writing literacy, namely (1) the Habituation Stage, where students get used to resuming books they have read by writing the author's name, title, and contents. (2) Development Stage, availability of reading spots in the school environment. (3) Learning Stage, literacy classes are provided which are directly given by librarians who teach about writing
The Literary contribution of Ahmad Jan Ahmad Marwat A Critical review
No full textAhmad Jan Marwat is a distinguished Pashto poet, researcher, translator and literary critic who has made significant contributions to Pashto literature.His first poetry collection, (Tears Drop by Drop).publish in 2001 reflects his deep emotions and experiences. His second collection, (“Faces,Facecs ,Collar”) ,published in 2022,showcases his technical skills and creative abilities. Marwat has conducted extensive research on various aspects of Pashto literature.His book ( “The story of Haiqu”) provides detailed insights in to the history, structure and themes of the Haiqu genre.He has translated Dr. Israr Ahmad,s (“Bayan al Quran”) in to Pashto in seven volumes, with one volume having been reprinted three times.Additionally,he has translated selected works of poets like Tahir kalachavi, Rahmat Ullah Dard, Majzoob, Muntazir Betani and Afgar in to English under the title “Dawn of the Desert” which are currently in the printing phase.Overall, Ahmad Jan Ahmad Marwat has made valuable contributions to Pashto literature through his poetry ,research, translation and critical writings, reflecting his profound thought, technical expertise ,and literary commitment
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