Theoretical Study of Mach number and Compressibility Effect on the Slender Airfoils

Theoretical development of the velocity potential equation for compressible flow and its various consequences has been presented. The geometrical interpretation of potential equation and conformal mapping technique are discussed where the mappings link the flow around a circular cylinder of a slender airfoil. The lift and drag coefficients are determined for the slender airfoils based on the Mach number and compressibility effects. The calculated lift coefficients show that with the increasing of attack angle it increases linearly and a higher lift coefficient is found for a smaller Mach number for any certain attack angle. Similarly, the drag profiles are determined which are exponentially decreased with the increasing of Mach number for any fixed attack angle. The calculated and experimental data on the lift and drag coefficients over the slender airfoil surface are compared and found in good agreement

The invention of mobile head loss apparatus

We might begin with a few general statements about fluid mechanics, the study of the motion of `fluids', meaning liquids and gases, and the effects of such motion [1]. Fluid motions are responsible for most of the transport and mixing (of materials or properties) that take place in the environment, in industrial processes, in vehicles, and in living organisms. In industrial processes, it is largely responsible for the rates at which many processes proceed, and for the uniformity of the resulting product

Review of Court Decision after the Constitutional Court of Indonesia Decision in Legal Certainty and Justice Perspectives

The practice of the criminal justice system and in particular criminal procedure law has several problems which is a debate among jurists as well as legal practitioners.  This issue refers to the exercise of the convicted person rights in making a review of court decision. A review of court decision is a tremendous remedy that can be done after the decision has acquired the force of the law.  The establishment of a review of court decision institution in a criminal case rests on the principle of a review of court decision which is included in Article 263 paragraph (1) of the Criminal Procedure Code (KUHAP). In the filing of the review of court decision must be eligible if there are new circumstances (novum)  and where a verdict clearly indicates a judge’s oversight or a tangible mistake in accordance with Article 263 paragraph (2) of KUHAP. A review of court decision under Article 268 paragraph (3) of KUHAP can only be filed once, but in practice a review of court decision may be made several times. This is contained in the Constitutional Court Decision Number 34/PUU-XI/2013. Therefore it is important to do an analysis to be reviewed from legal certainty vis a vis justice. In addition, by allowing the review of court decision of more than one time, there must be juridical implications for the release of the decision. Keywords: review of court decision, legal certainty, justice

Review of Court Decision after the Constitutional Court of Indonesia Decision in Legal Certainty and Justice Perspectives

The practice of the criminal justice system and in particular criminal procedure law has several problems which is a debate among jurists as well as legal practitioners.  This issue refers to the exercise of the convicted person rights in making a review of court decision. A review of court decision is a tremendous remedy that can be done after the decision has acquired the force of the law.  The establishment of a review of court decision institution in a criminal case rests on the principle of a review of court decision which is included in Article 263 paragraph (1) of the Criminal Procedure Code (KUHAP). In the filing of the review of court decision must be eligible if there are new circumstances (novum)  and where a verdict clearly indicates a judge’s oversight or a tangible mistake in accordance with Article 263 paragraph (2) of KUHAP. A review of court decision under Article 268 paragraph (3) of KUHAP can only be filed once, but in practice a review of court decision may be made several times. This is contained in the Constitutional Court Decision Number 34/PUU-XI/2013. Therefore it is important to do an analysis to be reviewed from legal certainty vis a vis justice. In addition, by allowing the review of court decision of more than one time, there must be juridical implications for the release of the decision. Keywords: review of court decision, legal certainty, justice

Collaborative system: higher education search engine

Malaysian universities or colleges has been one of the main attractive educational destinations to foreigners for the last decade. Malaysian educational institutions are recognized in opening doors of knowledge that fulfill student’s lives with skills, awareness and enthusiasm. There are over 20 public universities and 60 private colleges that offer a complete range of programs leading to highly regarded and internationally recognized qualifications. Despite the vast information made available by these institutions on their websites, majority of potential students face challenges in choosing the right program, courses and university that suits their needs. This research study the innovative method which could be developed and leveraged by the educational industries, specifically the Ministry of Higher Education Malaysia (MOHE) in close collaboration with these universities and colleges, in using search engine comparator technology whereby assisting potential students in making selection. The study raises awareness of relevant collaboration initiatives that could be adopted and replicated to facilitate students and parents in making well-informed decision

Email security issues, tools, and techniques used in investigation

The email system is a globally distributed communication infrastructure service that involves multiple actors playing different roles to ensure end-to-end mail delivery. It is an indispensable method of communicating that is changing how people share data and information. As a result, it facilitates effective and efficient communication, especially in business, as well as convenience, accessibility, and replication. Today, email can send more than just text files; it can also send audio, video, photos, and other files with extensions. With email becoming ubiquitous in all aspects of our lives, enhancing its security, operating procedures, and forensic investigation has become essential. The purpose of this paper is to review some real email forensic incidents and the tools and techniques that have been proposed. A discussion of the major threats to email as well as techniques to mitigate them will also be provided. A comparison study was made of several techniques and analysis tools used in email forensics. In addition, this paper compares the available software tools for email forensics based on factors such as language interface, user interface, programming language, creation of image files, calculation of hash value, cost, and advantages

A CNN based Multifaceted Signal Processing Framework for Heart Rate Proctoring Using Millimeter Wave Radar Ballistocardiography

The recent pandemic has refocused the medical world's attention on the diagnostic techniques associated with cardiovascular disease. Heart rate provides a real-time snapshot of cardiovascular health. A more precise heart rate reading provides a better understanding of cardiac muscle activity. Although many existing diagnostic techniques are approaching the limits of perfection, there remains potential for further development. In this paper, we propose MIBINET, a convolutional neural network for real-time proctoring of heart rate via inter-beat-interval (IBI) from millimeter wave (mm-wave) radar ballistocardiography signals. This network can be used in hospitals, homes, and passenger vehicles due to its lightweight and contactless properties. It employs classical signal processing prior to fitting the data into the network. Although MIBINET is primarily designed to work on mm-wave signals, it is found equally effective on signals of various modalities such as PCG, ECG, and PPG. Extensive experimental results and a thorough comparison with the current state-of-the-art on mm-wave signals demonstrate the viability and versatility of the proposed methodology. Keywords: Cardiovascular disease, contactless measurement, heart rate, IBI, mm-wave radar, neural networkComment: 13 pages, 10 figures, Submitted to Elsevier's Array Journa

IslamGRID: Knowledge Management at Jakim

IslamGRID was developed to collect, preserve, disseminate and promote knowledge of Islam to all Muslims globally, whether in the administrative, industrial and commercial. With the advent of Information Technology and the increase of the amount of information that organizations have to deal with, there is a requirement to put strategic process in place to ensure the effective management of knowledge. This case study research looks into 3 main areas of a Knowledge Management (KM) System (KMS) (i. People; ii. Process; and iii. Technology) and their relationship, which might affect the effectiveness of the IslamGRID to the Islamic community (Ummah). The application of these areas would be for JAKIM, JAIN, Muslims as well as non-Muslims

Quantized Transformer Language Model Implementations on Edge Devices

Large-scale transformer-based models like the Bidirectional Encoder Representations from Transformers (BERT) are widely used for Natural Language Processing (NLP) applications, wherein these models are initially pre-trained with a large corpus with millions of parameters and then fine-tuned for a downstream NLP task. One of the major limitations of these large-scale models is that they cannot be deployed on resource-constrained devices due to their large model size and increased inference latency. In order to overcome these limitations, such large-scale models can be converted to an optimized FlatBuffer format, tailored for deployment on resource-constrained edge devices. Herein, we evaluate the performance of such FlatBuffer transformed MobileBERT models on three different edge devices, fine-tuned for Reputation analysis of English language tweets in the RepLab 2013 dataset. In addition, this study encompassed an evaluation of the deployed models, wherein their latency, performance, and resource efficiency were meticulously assessed. Our experiment results show that, compared to the original BERT large model, the converted and quantized MobileBERT models have 160$\times$ smaller footprints for a 4.1% drop in accuracy while analyzing at least one tweet per second on edge devices. Furthermore, our study highlights the privacy-preserving aspect of TinyML systems as all data is processed locally within a serverless environment.Comment: Accepted for publication on 22nd International Conference of Machine Learning and Applications, ICMLA 202