Influence of natural fillers on shear strength of cement treated peat

U radu su prikazana istraživanja stabilizacije tresetnog tla cementom i različitim prirodnim punilima. U svrhu istraživanja, prirodna punila u različitim su omjerima pomiješana s tresetom ojačanim cementom te su izmjerene tlačne čvrstoće. Rezultati upućuju na to da mješavina s 300 kg/m3 cementa i 125 kg/m3 dobro granuliranog pijeska u odnosu na masu vlažnog treseta ima najveću jednoosnu tlačnu čvrstoću nakon njege od 90 dana. Ostala su punila smanjila čvrstoću stabiliziranog treseta.A study on peat soil stabilization by using cement and different natural fillers is presented in the paper. In the scope of this study, natural fillers are mixed at various dosages with cement treated peat in order to evaluate the unconfined compressive strength. The results indicate that the mix design of 300 kg/m3 cement, with 125 kg/m3 of well graded sand by mass of wet peat, gives the highest uniaxial compressive strength at 90 days of curing. Other fillers decrease the strength of stabilized peat

Software Effort Estimation Accuracy Prediction of Machine Learning Techniques: A Systematic Performance Evaluation

Software effort estimation accuracy is a key factor in effective planning, controlling and to deliver a successful software project within budget and schedule. The overestimation and underestimation both are the key challenges for future software development, henceforth there is a continuous need for accuracy in software effort estimation (SEE). The researchers and practitioners are striving to identify which machine learning estimation technique gives more accurate results based on evaluation measures, datasets and the other relevant attributes. The authors of related research are generally not aware of previously published results of machine learning effort estimation techniques. The main aim of this study is to assist the researchers to know which machine learning technique yields the promising effort estimation accuracy prediction in the software development. In this paper, the performance of the machine learning ensemble technique is investigated with the solo technique based on two most commonly used accuracy evaluation metrics. We used the systematic literature review methodology proposed by Kitchenham and Charters. This includes searching for the most relevant papers, applying quality assessment criteria, extracting data and drawing results. We have evaluated a state-of-the-art accuracy performance of 28 selected studies (14 ensemble, 14 solo) using Mean Magnitude of Relative Error (MMRE) and PRED (25) as a set of reliable accuracy metrics for performance evaluation of accuracy among two techniques to report the research questions stated in this study. We found that machine learning techniques are the most frequently implemented in the construction of ensemble effort estimation (EEE) techniques. The results of this study revealed that the EEE techniques usually yield a promising estimation accuracy than the solo techniques.Comment: Pages: 27 Figures: 15 Tables:

Performance Analysis of a Monopole Antenna with Fluorescent Tubes at 4.9GHz Application.

This paper presents of analysis the performance monopole antenna with fluorescent tubes. The antenna was designed at the operating frequency which is 4.9 GHz. The commercially fluorescent tubes consist of a glass tube filled with mixture mercury vapor and argon gas. After get sufficient voltage the gas inside the fluorescent tube will ionize to plasma and formed plasma column. The plasma frequency is equal to 5.634e11 Hz. The plasma is highly conducting and acts as a reflector. When all of the tubes surrounding the antenna are electrified, the radiation is trapped inside when the plasma frequency is greater than radio frequency. An accomplishment of the design has been carried out using CST microwave studio software. The developed antenna has potential in military application. To conclude, antenna’s performance was analyzed in terms of return loss, radiation pattern and gain. Keywords : Plasma, monopole antenna, return loss, radiation pattern, gain

Backtracking Search Optimization for Collaborative Beamforming in Wireless Sensor Networks

Due to energy limitation and constraint in communication capabilities, the undesirable high battery power consumption has become one of the major issues in wireless sensor network (WSN). Therefore, a collaborative beamforming (CB) method was introduced with the aim to improve the radiation beampattern in order to compensate the power consumption. A CB is a technique which can increase the sensor node gain and performance by aiming at the desired objectives through intelligent capabilities. The sensor nodes were located randomly in WSN environment. The nodes were designed to cooperate among each other and act as a collaborative antenna array. The configuration of the collaborative nodes was modeled in circular array formation. The position of array nodes was determined by obtaining the optimum parameters pertaining to the antenna array which implemented by using Backtracking Search Optimization Algorithm (BSA). The parameter considered in the project was the side-lobe level minimization. It was observed that, the suppression of side-lobe level for BSA was better compared to the radiation beampattern obtained for conventional uniform circular array

The Determinants of Work-Life Balance among Nurses in Public Hospital in Klang Valley

The need to have a healthy work-life balance is generally recognized across several professional domains. The present investigation was carried out within a public health institution situated in the Klang Valley region. The objective of this study is to investigate the impact of workload, time management, and work environment on the work-life balance of nurses, who serve as frontline healthcare professionals. The research utilized purposive sampling as one of the quantitative research methods. Online distribution was utilized as the means of data collection.  A grand total of 276 questionnaires were appropriately completed and afterward returned. The findings indicate that workload negatively impacts employee work-life balance when compared to aspects such as time management and work environment. All the variables found have a significant impact on employees  work-life balance in different positive and negative relationships

Temperature effect on compression and collapsibility of residual granitic soil

U ovom se radu istražuje utjecaj temperaturnih promjena na indeks stišljivosti i potencijal kolapsibilnosti rezidualnog granitnog tla na koje se često nailazi u Maleziji. Zbijeno tlo analizirano je pomoću modificiranog edometra s kontrolom temperature. Dvije serije uzoraka tla s raznim vrijednostima suhe gustoće ispitane su pri temperaturama od 27, 40 i 60°C. Rezultati ispitivanja pokazuju da vrijednost indeksa stišljivosti ne ovisi o temperaturi. S druge strane, grijanje dovodi do smanjenja potencijala kolapsibilnosti, a ta je pojava izraženija pri niskim vrijednostima suhe gustoće.This research aims to investigate the effect of temperature changes on the compression index and collapse potential of the residual granitic soil that is widely encountered in Malaysia. An experimental study was conducted on the compacted soil using a modified temperature-controlled oedometer. Temperatures of 27, 40, and 60 ºC were applied on two series of soil specimens with different values of dry density. Experimental results showed that the value of compression index is independent of temperature. On the other hand, heating caused a reduction in collapse potential, which was more pronounced at low dry density

Design Of A Neural Network Based Cervical Cancer Diagnosis System: A Microcontroller Approach.

Cervical cancer is the second most common type of cancer that affects women,ranked after breast cancer. In Malaysia, there is a shortage of pathologists that can diagnose the disease

Eksplorasi adaptasi antarabudaya pelajar Melayu di Australia dan United Kingdom

Kajian ini dijalankan bertujuan untuk menganalisis proses adaptasi antarabudaya pelajar Melayu di Australia dan United Kingdom sewaktu melanjutkan pengajian mereka ke peringkat Ijazah Sarjana (Master) dan Ijazah Kedoktoran (Phd). Fokus kajian ini tertumpu kepada perbezaan budaya dan cara hidup pelajar di luar negara. Model Lekuk-U (Lysgaard, 1955) telah digunakan sebagai asas kepada penyelidikan) yang bermula dari peringkat bulan madu (honeymoon stage), peringkat kejutan budaya (culture shock stage), peringkat pelarasan (adjustment stage) dan akhir sekali peringkat penguasaan (mastery stage). Empat kumpulan fokus telah dijalankan membabitkan pelajar-pelajar sarjana Melayu yang telah belajar di Australia dan United Kingdom. Hasil analisis dapatan kajian mendapati bahawa peringkat berbulan madu (honeymoon stage) tidak dilalui oleh pelajar ini kerana peringkat awal di negara baru lebih tertumpu untuk menyesuaikan diri dan mempelajari bagaimana untuk beradaptasi. Mereka kurang mempunyai masa untuk bersuka-ria. Walaupun terdapat cabaran sebagai seorang Muslim di luar negara, pelajar mampu menjalani hidup dengan baik kerana negara luar telah mula mendapat pendedahan tentang cara hidup orang Islam

Design of a low cost portable diagnosis kit for cervical cancer.

Cervical cancer is the second most common type of cancer that affects women, ranked after breast cancer. In Malaysia, there is a shortage of pathologists that can diagnose the disease. Therefore, automated or semi automated diagnosis systems are needed to overcome this shortage. Barah pangkal rahim adalah merupakan kanser yang kedua terbesar menyerang wanita selepas barah payudara. Di Malaysia, terdapat kekurangan pakar patologi yang boleh mengenalpasti dan mengesan barah ini. Oleh itu, sistem diagnosis automatik atau separa-automatik diperlukan untuk mengatasi kekurangan pakar patologi

Implementation Of The Hybrid Multilayered Perceptron Network In Assembly Language.

In this research, an approach to implement the Hybrid Multilayered Perceptron Network. (HMLP) in assembly language is discussed in detail