Engineering Commons^™

تحليل واقع التعليم الإلكتروني في الجامعات الفلسطينية: دراسة حالة جامعة فلسطين التقنية – خضوري/طولكرم, Hiba Khalil Almbayed

Palestine Technical University Research Journal

The study aimed to analyze the reality of e-learning at Palestine Technical University-Khudouri/Tulkarem, and to identify the most important challenges facing students when using the education system, as well as to analyze the extent to which university students interact with the e-learning system, and to show the differences between the average opinions of the study sample on e-learning according to the study variables due to the nature of the study, the descriptive analytical approach was used, in order to reach practical results, and to achieve and analyze the reality of e-learning a questionnaire consisting of (34) paragraphs was designed, where …

أثر أنظمة المعلومات المحاسبية على القرارات المالية للمنشآت التجارية في مدينة طولكرم, Ammar Salem

Palestine Technical University Research Journal

This study sought to highlight the effect of information accounting systems on the financial decisions (fund decisions, investment decisions, deviance earning decisions, special decisions) of commercial establishments in Tulkarem Governorate and to show which variables have the greater impact on these decisions. The researcher conducted the study using a questionnaire. He distributed questionnaires covering 300 accountants and auditors depending on the statistics of Tulkarem Chamber of Commerce and Trade in 2019. The study sample composed of 50 accountants and auditors in October 2019. To achieve the end of the study, the researcher employed arithmetic means and standard deviation. The study …

ملامحُ المقاومةِ الشعبيَّة في ديوانِ "المجدُ ينحني أمامكم" مُقتَرباتُ الموضوعِ والَّتشكيل الشعريّ, Khalel Qatanani

Palestine Technical University Research Journal

The study deals with the "Glory bends before you" by the poet Abdel Nasser Saleh, as an appropriate model to study the subject of popular resistance and its role in confronting the occupier through the use of popular resistance methods and means, and the statement of its foundations, and objective and poetic features. He lived the experiences of struggle and arrest in the Uprising. He practiced peaceful resistance on the homeland by his pencil and actions. The study attempts to dismantle the vocabulary of the texts of the Diwan by employing the analytical methodology in order to demonstrate the extent …

مفهوم الذات وعلاقته بالتكيف النفسي لدى الأحداث الجانحين المسجلين في وزارة التنمية الاجتماعية, Iyad Abu Bakr, Salim Odeh

Palestine Technical University Research Journal

This study is aimed to identify the self-concept and its relation with psychological adaption in the delinquent juvenile, who are registered in the ministry of social development, andthe impact of some demographical variants (age, and monthly income), on the self-conception and psychological adaption on them, from the delinquent juvenile who are registered in the ministry of social development point of view ،in Ramallah and Tubas governorates. The study sample consists of all juvenile who are registered in the ministry of social development in 2016, whose number is 2460 delinquent juvenile, among them a clustered and Random sample which has been …

واقع الصحة المدرسية في مدارس محافظة الخليل الحكومية وسبل تطويرها, Hakam Hijje, Aseel Abu Zneid

Palestine Technical University Research Journal

This study aimed at investigating the status of school health in the Governorate of Hebron and the way to develop them. The study population consisted of all teacher members of the health committees and their coordinators, in Governorate of Hebron. In academic year 2017/2018, (1482) committee members. The researcher used questionnaire to collect data. The questionnaire sample was randomly stratified, and consisted of (250) members. The researcher developed (40) items questionnaire that covers the aspects of the status of school health. The study results revealed that, the degree of estimation of the teacher members of school health and the coordinators …

درجة تطبيق مهارات التفكير التأملي في تدريس التربية الرياضية في المدارس الحكومية لمحافظة نابلس من وجهات نظر معلمي التربية الرياضية, Islam Mohammad Abbas

Palestine Technical University Research Journal

This study aimed to identify the degree of applying the thinking skills in teaching physical education in public schools in Palestine from the perspectives of teachers of physical education themselves. The study found that the degree of applying the thinking skills in the field of thinking during the event received the highest degree of approval from the point of view of the teachers of physical education, followed by the field of thinking of the event in the second place. The field of reflective thinking in general received a high degree of approval, with a percentage of 73.3%. The study also …

نظرة تقييمية لآراء الخبراء في كرة الطائرة نحو تطبيق نظام الاحتراف في أندية الضفة الغربية, Ahmad Nassar, Ismael Zakarneh, Husein Qadoumi, Ghait Nassef

Palestine Technical University Research Journal

This study aimed to an evaluation look at the opinions of experts in volleyball towards the application of the professional system in West Bank clubs, and to achieve this, the researchers used the descriptive approach due to its suitability and the nature of the objectives of the study. Organization and planning, capabilities and playgrounds, media and marketing, and game components (coaches, players and referees), the study population consisted of (70) individuals, and the study sample reached (37) individuals, accounting for 52% of the study community as follows: experts (15), and managers The technicians (trainers) (9), team administrators (7), and referees …

دَرجَةُ اسْتخدامِ نُظُمِ الْبَحْثِ والرّضا عنْها في الْمكتباتِ الفِلَسطينيّةِ في ظلِّ البيئةِ التّكْنولوجيّةِ منْ وِجْهَةِ نظرِ أُمَناءِ المكتباتِ وَالباحِثينَ, Ibrahim Khader

Palestine Technical University Research Journal

The present study aimed to identify the extent of using research systems that are the new generation for the library index, similar to the interface of the beneficiaries that allows access to all information, and satisfaction with it in Palestinian libraries in light of the technological environment from the viewpoint of librarians and researchers. It also aimed to identify whether there is any difference between the respondent’s occupational stress levels which can be attributed to their (Gender, major, library type, experience). The study’s population consists from all the all the Librarians and researchers in Palestine (West Bank and Gaza Strip). …

التأثيرات السلبية الناتجة عن استخدام الأجهزة اللوحية الذكية على الصحة الجسمية والنفسية لأطفال من عمر(13-16) سنة من وجهة نظرهم, Nuha Iter

Palestine Technical University Research Journal

The study aimed to explore the negative effects of using smart devices on the physical and psychological health of children aged (13-16) years from their perspective. The study was applied to a random sample of children aged (13-16), consisting of (102) male and female students. The descriptive method was used to answer the study questions, and a questionnaire was developed to collect data, which contains (3) sections, first section asked about the most used and preferred devices by children aged (13-16) years, and the number of hours the child used the smart device, the second one asked about the negative …

Uniaxial Strain And Optical Properties Of Gap Nanowires, Rezek Mohammad

Palestine Technical University Research Journal

The optical properties for wurtzite (WZ) Bulk GaP and GaP nanowires (GaP-NWs) in hexagonal(circular), triangular and square cross sectional are investigated by using full potential linear augmented plane waves and local orbitals (FP-LAPW-LO) method based on density functional theory (DFT). The wurtzite nanowires are investigated with diameters limited to ~27 oA. The optical functions as a function of photon energy have been investigated for unstrained bulk WZ-GaP and WZ-GaP-NWs in the first part. Finally, the optical functions are investigated for WZ-GaP-NWs by applying uniaxial strain from -5% to +5%. The effect of cross sectional variation in the area and shape …

إثر استخدام شبكات التواصل الاجتماعية على الأداء الأكاديمي للطلبة, Abeer Qashou, Rania Abdalla

Palestine Technical University Research Journal

Social Network Sites (SNSs) are widely used by university students these days. The underlying reasons behind this use vary between academic and nonacademic purposes. The question is whether this use influences the students' academic performance or not. The aim of this study is to answer this question by examining the impact of five potential variables on the use of SNS, and the influence of this usage on the students' academic performance at Palestine Technical University-Kadoorie (PTUK). Five variables are included: the gender, age, faculty, duration of use, and computer self-efficacy. Stratified sampling technique was used to gather the required data, …

التحلل الضوئي للميثاميدوفوس (مبيد حشري) في الماء باستخدام اكسيد التيتانيوم النانوي البلوري المعدل بالصبغ المدعوم على أسطح الكربون المنشط, Lamees Majd, Nidal Zatar, Sameer Amereih, Hikmat Hilal

Palestine Technical University Research Journal

Anatase TiO2 surfaces have been treated with 2, 4, 6-triphenylpyrylium hydrogen sulfate (TPPHS) or tripyridylporhpyrinatomanganese(II) (MnP) dyes to yield the modified TiO2/ dye surfaces. The modified TiO2/dye surface was then supported onto activated carbon (AC) surfaces to yield a new class of catalytic system AC/TiO2/dye. The catalytic activities of naked TiO2, dye solution, TiO2/dye, and AC/TiO2/dye systems were examined in photo-degradation of Methamidophos (insecticide) in water, using both UV and visible light. All examined systems showed catalytic activity when used either in the UV or the visible regions, but the AC/TiO2/ dye showed the highest activity. The dye role, in …

التحقيق والتحليل التجريبي لتشغيل المحركات الحثية ثلاثية الطور في ظل حالة المرحلة الواحدة, Basem Alsayid

Palestine Technical University Research Journal

A three-phase induction motor will continue to operate when a disturbance of some sort causesthe source voltages of the motor to become unbalanced. When an induction motor is operated at unbalanced voltage supply the performance characteristics like efficiency, power factor, input power, output power and losses are affected. The single-phasing occurs when one phase fails as a result of a fuse blowing, protective device opening on one phase of the motor, open phase on one terminal of the motor or other causes.This paper will analyze the operation of a 3-phase induction motor under normal balancedsource voltages first, then under single …

تحسين الإنتاج الزراعي باعتبارات اجتماعية واقتصادية: دراسة حالة من فلسطين, Fathi Annaya

Palestine Technical University Research Journal

Agriculture is not only the main source of income to most Palestinian families; it is also the link to connect them to their valuable land and water resources. Farmers seek assistance from agronomists and decision makers to cultivatethe proper products. In this study, the best selection of agricultural crops is addressed in the multiple-objective context. The study deals with three conflicting objective functions: net benefit, agricultural production, and labor employment. Four-stageprocedure is adopted combining multiple-objective optimization, simple valuation methods, cluster analysis, and multiple criteria decisions making (MCDM) methods. Pareto optimal curves are used to evaluate the marginal prices of both …

تأثير استخدام أنواع مختلفة من الأسمدة على نمو ونوعية الخس (Lactuca Sativa L.), Basel Natsheh, Nawaf Abukhalaf

Palestine Technical University Research Journal

The experiment was conducted during the period from March to the end of April 2019 to observe the effect of different fertilizer regimes on the growth, quality and yield of lettuce under field conditions. The experiment was consisting of four treatments as well as a control without fertilizer T1, compost T2, compost tea T3 and chemical fertilizer T4, in each treatment 50 replicates were planted. The measurements included wet and dry weight for shoot and root, plant length, and chlorophyll percentage. The study revealed that lettuce's best growth values were obtained with the use of eco-friendly organic fertilizer accompanied by …

التنبؤ بأداء الطلاب بناء على ملف الطالب الأكاديمي, Hadi Khalilia, Thaer Sammar, Yazeed Sleet

Palestine Technical University Research Journal

Data mining is an important field; it has been widely used in different domains. Oneof the fields that make use of data mining is Educational Data Mining. In this study, we apply machine learning models on data obtained from Palestine Technical University-Kadoorie (PTUK) in Tulkarm for students in the department of computer engineering and applied computing. Students in both fields study the same major courses; C++ and Java. Therefore, we focused on these courses to predict student’s performance. The goal of our study is predicting students’ performance measured by (GPA) in the major. There are many techniques that are used …

توصيف المجتمعات البكتيرية في لحم الضأن الفلسطيني بواسطة التنميط الظاهري و تحليل جين 16s Rrna, Wafa Masoud, Mahmoud Hamdan

Palestine Technical University Research Journal

The main purpose of the present study was to isolate, identify and quantify bacteria in Palestinian fresh lamb meat. Phenotyping and 16S rRNA gene sequence analysis was used to identify bacteria present in lamb meat samples. Thirty-four bacterial isolates were obtained from 20 samples of fresh lamb meat collected from 4 meat shops in Tulkarem city in Palestine. Bacterial counts were in a range of 3 x 103 -1.5 x 105 cfu / g with Staphylococcus aureus being the highest in numbers among other bacteria. Enterobacteriaceae and Staphylococ-caceae were the predominant bacterial families detected in fresh lamb meat samples. Two …

تخليق وتقييم إمكانات مضادات الليباز والالتحام الجزيئي لـلمركب الجديد N '- (2-Hydroxy-5-Nitrobenzylidene) Naphthalene-2-Sulfonohydrazide, Sameer Amereih, Abd Daraghmeh, Ismail Warad, Mohammed Al-Nuri

Palestine Technical University Research Journal

N’-(2-Hydroxy-5-nitrobenzylidene) naphthalene-2-sulfonohydrazide (SB) was prepared by condensation reaction, of naphthalene-2-sulfonylchloride with 2-Hydroxy-5-nitrobenzaldehyde. The Schiff base product (SB) was isolated, purified and then spectrally characterized via UV-Vis, FT-IR, 1H and 13C NMR analysis, where strong evidences confirmed the formation of the desired product. Pancreatic porcine lipase inhibition of the Schiff base product was evaluated and compared with the reference “Orlistat”. The product was an active as a lipase enzyme inhibitor with IC50 42.65±0.97 mcg/ml. The molecular docking of the compound with porcine pancreatic lipase was investigating, the results of theoretical docking explained the experimental one since several hydrogen bonds between the …

Physics-Based Proxy Modeling Of Co2 Sequestration In Deep Saline Aquifers, Aaditya Khanal, Md Fahim Shahriar

Jasper Department of Chemical Engineering Faculty Publications and Presentations

The geological sequestration of CO2 in deep saline aquifers is one of the most effective strategies to reduce greenhouse emissions from the stationary point sources of CO2. However, it is a complex task to quantify the storage capacity of an aquifer as it is a function of various geological characteristics and operational decisions. This study applies physics-based proxy modeling by using multiple machine learning (ML) models to predict the CO2 trapping scenarios in a deep saline aquifer. A compositional reservoir simulator was used to develop a base case proxy model to simulate the CO2 trapping mechanisms (i.e., residual, solubility, and …

Effects Of Tackification Agents On Room Temperature Epoxy Mechanical Properties, Garen B. Murray

Theses and Dissertations

When laying up dry composite materials and aligning the fibers in the appropriate directions it can be a challenge due to the dryness of the fiber and mold design. Several commercial products are available to help fix plies to molds keeping the proper fiber orientation depending upon mold geometry. Prepreg and wet layups do not have this problem due to the inherent inclusion of a matrix in their manufacturing, dry materials have no added epoxy at the time of layup and are therefore in need of assistance maintain position. The purpose of this research is to determine if Super 77™ …

Methods For Characterizing Groundwater Resources With Sparse In-Situ Data, Ren Nishimura

Theses and Dissertations

Groundwater water resources must be accurately characterized in order to be managed sustainably. Due to the cost to install monitoring wells and challenges in collecting and managing in-situ data, groundwater data is sparse in space and time especially in developing countries. In this study we analyzed long-term groundwater storage changes with limited times-series data where each well had only one groundwater measurement in time. We developed methods to synthetically create times-series groundwater table elevation (WTE) by clustering wells with uniform grid and k-means-constrained clustering and creating pseudo wells. Pseudo wells with the WTE values from the cluster-member wells were temporally …

Mobile-Polypnet: Lightweight Colon Polyp Segmentation Network For Low-Resource Settings, Ranit Karmakar, Saeid Nooshabadi

Michigan Tech Publications, Part 1

Colon polyps, small clump of cells on the lining of the colon, can lead to colorectal cancer (CRC), one of the leading types of cancer globally. Hence, early detection of these polyps automatically is crucial in the prevention of CRC. The deep learning models proposed for the detection and segmentation of colorectal polyps are resource-consuming. This paper proposes a lightweight deep learning model for colorectal polyp segmentation that achieved state-of-the-art accuracy while significantly reducing the model size and complexity. The proposed deep learning autoencoder model employs a set of state-of-the-art architectural blocks and optimization objective functions to achieve the desired …

Gross Positioning Device And Related Systems And Methods, Mark A. Reichenbach, Shane M. Farritor

Department of Mechanical and Materials Engineering: Faculty Publications

Disclosed herein are gross positioning systems for use with robotic surgical devices to provide gross positioning of the robotic surgical devices. The gross positioning systems have a base, a first arm link operably coupled to the base, a second arm link operably coupled to the first arm link, a third arm link operably coupled to the second arm link, and a slidable coupling component slidably coupled to the third arm link.

Probabilistic Multi-Objective Inverse Analysis For Damage Identification Using Piezoelectric Impedance Measurement Under Uncertainties, Kai Zhou, Yang Zhang, Qi Shuai, Jiong Tang

Michigan Tech Publications, Part 1

Piezoelectric impedance sensing is promising for highly accurate damage identification because of its high-frequency active interrogative nature and simplicity in data acquisition. To fully unleash the potential, effective inverse analysis is needed in order to pinpoint the damage location and identify the severity. The inverse analysis, however, may be underdetermined since there exists a very large number of unknowns (i.e., locations and severity levels) to be solved in a finite element model but only limited measurements are available in actual practice. To uncover the true damage scenario, an inverse analysis strategy built upon the multi-objective optimization, which aims at matching …

Machine Learning, The Mortar Of Modernization, Vishnu Pendyala

Open Educational Resources

Machine Learning is advancing civilization and is one of the key drivers of the economy today. Machine Learning literacy may one day become essential, the way computer literacy is today. This talk intends to explain Machine Learning concepts to wider audiences by using easy-to-relate real-world analogies and serves as a refresher to those already initiated. A fundamental concept in machine learning is similarity. The dot product that is ubiquitously present in machine learning is a measure of similarity. Similarity is key to human learning as well. We learn in delta increments by comparing and contrasting with what we already know. …

A Goal-Driven Framework For Individualised Self-Care For Early-Stage Dementia, Jonathan Turner, Ciaran Nugent, Damon Berry, Dympna O'Sullivan, Michael Wilson, Ann Marron, Julie Doyle

Articles

For people with early or moderate dementia, there are benefits to them continuing to live in their own homes for as long as possible, both in improved quality of life and associated measures such as increased social contact, increased physical activity and lower use of medication, and reduced costs and burden of care. Tools to help extend period of independent living, and to maintain quality of life in this period, are lacking. Systems exist to monitor individuals for problems, e.g. falls or wandering from the home, but there is scope for development of computerised support to help maintain activity in …

Cardio-Net: A Matlab-Based Software For The Display And Diagnostic Utilization Of Vectorcardiograms, Ali H. Mannaa, Domenico Gatti

Medical Student Research Symposium

Background: The 12-lead technique is the standard in ECG, however alternate cardiography modalities such as vectorcardiography (VCG) exist . While the VCG modality offers unique clinical metrics and certain advantages over ECG, it is hardly utilized due to it being more difficult to obtain than ECG. Here we introduce Cardio-Net, a MATLAB-based software that uses standard 12-lead ECG data to generate and visualize VCGs. Furthermore, we demonstrate the diagnostic potential of VCG by utilizing a recurrent neural network (RNN) to accurately classify vectorcardiograms.

Methods: MATLAB version 2019b and the following toolboxes were used for data processing: Deep learning, …

Automatic Contact Tracing Using Bluetooth Low Energy Signals And Imu Sensor Readings, Suriyadeepan Ramamoorthy, Joyce Mahon, Michael O'Mahony, Jean Francois Itangayenda, Tendai Mukande, Tlamelo Makati

Other resources

In this report, we present our solution to the challenge provided by the SFI Centre for Machine Learning (ML-Labs) in which the distance between two phones needs to be estimated. It is a modified version of the NIST Too Close For Too Long (TC4TL) Challenge, as the time aspect is excluded. We propose a feature-based approach based on Bluetooth RSSI and IMU sensory data, that outperforms the previous state of the art by a significant margin, reducing the error down to 0.071. We perform an ablation study of our model that reveals interesting insights about the relationship between the distance …

Characterizing The Chemical And Microbial Fingerprint Of Unsheltered Homelessness In An Urban Watershed, Daniel Gerrity, Katerina Papp, Eric Dickenson, Meena Ejjada, Erica Marti, Oscar Quinones, Mayra Sarria, Kyle Thompson, Rebecca A. Trenholm

Civil and Environmental Engineering and Construction Faculty Research

Unsheltered homelessness is rapidly becoming a critical issue in many cities worldwide. The worsening situation not only highlights the socioeconomic plight, but it also raises awareness of ancillary issues such as the potential implications for urban water quality. The objective of this study was to simultaneously leverage diverse source tracking tools to develop a chemical and microbial fingerprint describing the relative contribution of direct human inputs into Las Vegas' tributary washes. By evaluating a wide range of urban water matrices using general water quality parameters, fecal indicator bacteria (FIB), human-associated microbial markers [e.g., HF183, crAssphage, and pepper mild mottle virus …

Reduced-Scale Experiments And Numerical Simulations Of Informal Settlement Dwelling Fires, Vigneshwaran Narayanan, Antonio Cicicone, Ayden D. Botha, Richard Shaun Walls

Progress in Scale Modeling, an International Journal

Informal settlement dwellings (ISDs) house approximately one billion people in the developing world and this number is expected to double by the year 2030. Contemporary research on ISD fires has focused on understanding the fire dynamics within individual dwellings (micro-scale) and fire spread in settlements consisting of multiple dwellings (macro-scale). This paper aims to do two primary things: investigate if scaling methods that were derived for compartments with thermally thick boundaries can be applied to ISDs (compartments with thermally thin boundaries), and if they can adequately represent the most important phenomena associated with full-scale ISD fires; and demonstrate Fire Dynamics …