bluuebunny/crossref_metadata_2025 huggingface dataset:
The influence of polymer content on the shear wave velocities in fine sand
Authors: Sarkar Debdeep , Lieske Wolfgang , Goudarzy Meisam , Wichtmann Torsten
Published: April 2023

The usage of various polymers as an alternative in ground improvement problems is steadily gaining popularity. However, certain aspects of the usage of polymers are still not properly addressed. In this research, an experimental programme was undertaken to study the influence of various polymer contents on the shear wave velocities in granular soils. Different polymer concentrations were mixed with a uniform sand to obtain various concentrations. Resonant column tests were carried out under three different mean effective stresses considering various densities. The results suggest a significant influence of the polymer under low stress values due to the coating that reduces normal contact forces between sand grains. The influence of the coating is further seen to decrease since under higher stresses, the coatings are significantly damaged, leading to an increase in the stiffness of the specimens, the values of which are closer to that measured for pure sand.
Two types of [NT]s in Panãra: Evidence for temporally ordered subsegmental units
Authors: Lapierre Myriam
Published: April 2023

This paper discusses articulatory and perceptual phonetic data on Panãra (ISO code: kre), a Jê language of Central Brazil, supporting the existence of a previously undocumented phonological distinction between two types of [NT] segments. Panãra exhibits a distinction between partially nasalized consonants arising from two distinct phonological processes: post-oralization of nasal consonants (/m, n, ɲ, ŋ/ → [mp, nt, ns, ŋk]), and pre-nasalization of oral obstruents (/p, t, s, k/ → [mp, nt, ns, ŋk]). These [NT]s contrast in surface sequences of the type [ṼNTV], as in the minimal pair /mĩ-ŋɾɛ/ → [mĩŋkɾɛ] ‘caiman egg’ vs. /mĩ-kɾɛ/ → [mĩŋkɾɛ] ‘caiman burrow.’ This novel data provides clear evidence that phonological grammars can and do manipulate subsegmental units. The data is analyzed within the framework of Q Theory, a model of representational phonology which decomposes the segment [Q] into a series of three quantized, temporally ordered subsegments (q1 q2 q3) (e.g., Shih & Inkelas 2019). The tripartite architecture of Q Theory provides the level of granularity necessary to distinguish between post-oralized nasals and pre-nasalized stops, where the former are represented with two nasal subsegments followed by one oral subsegment (m1 m2 p3), and the latter are represented with a single nasal subsegment followed by two oral subsegments (m1 p2 p3). It is shown that, to model the distribution between the two [NT]s in Panãra, the grammar must crucially make use of constraints that reference subsegmental units.
Fenomenolojik Sosyoloji Öncüllerinin Turizm Alanyazın Üzerinden Değerlendirilmesi
Authors: AKOĞLAN KOZAK Meryem , KALE Deniz
Published: April 2023

Nitel araştırma yaklaşımlarından biri olan fenomenoloji, bireylerin fenomenlerle ilgili deneyimlerinin ortaya çıkarılması amacıyla uygulanan yöntemdir. Fenomenolojik sosyoloji ise fenomenolojinin sosyolojik bakış açısıyla yorumlanmasıdır. Bu çalışmada, turizm alanında yapılan fenomenoloji çalışmaları, fenomenolojik sosyolojinin öncülleri kapsamında incelenmektedir. Belirlenen çalışmalardaki öncüllerin yer alma durumu aynı zamanda, sosyolojik bakış açısını da temsil etmesi bakımından önemlidir. Çalışmada, nitel araştırma yöntemlerinden içerik analizi tercih edilmiştir. Yorumlamalarda betimsel analiz kullanılmıştır. Veriler iki veri tabanından (Dergipark ve Anadolu Üniversitesi Kütüphanesi Veritabanları Toplu Arama) derlenmiştir. Analizler sonucunda, fenomenolojik turizm çalışmalarının, fenomenolojiyi sosyolojik olarak açıklamada yetersiz kaldığı görülmüştür. Bu kapsamda, fenomenolojik sosyoloji öncüllerinden “biz ve onlar” ilişkisi, “özneler-arasılık”, “amacıyla ve çünkü” güdüleri ve “toplumsal inşacılık” öncüllerinin çalışmalarda az sıklıkla temsil edildiği; diğer öncüllerden “yaşam dünyası”, “deneyim” ile “paranteze alma” öncüllerinde ise sosyolojik temellendirmelerin kullanıldığı, açıklamalarda bu bağlamlardan sıklıkla yararlanıldığı görülmüştür.
İran ve Suudi Arabistan İlişkilerindeki Çatışma Dinamikleri: Bölgesel Güç Mücadelesinin Kimlik Perspektifinden İncelenmesi
Authors: ÇAPAR Gökhan , KOÇ Engin
Published: April 2023

Bu araştırma makalesinin amacı, İran ve Suudi Arabistan ilişkileri örneğiyle dış politika tutum ve eylemlerini kimlik açısından değerlendirmektir. Bu çerçevede çalışmamız, Suudi Arabistan ile İran arasındaki ilişkileri ve dolayısıyla birbirlerine yönelik politik tutumları kimliksel farklılıkların şekillendirdiği, bunun da aralarında kaçınılmaz bir bölgesel mücadeleye yol açtığı varsayımına dayanmaktadır. Bu açıdan varsayımımızı desteklemek için öncelikle kuramsal çerçeve ele alınmıştır. Ardından bu aktörler arasındaki çatışma dinamikleri ve bunların bölgesel etkileri, bir vaka çalışması olarak ortaya konulmuştur. Dolayısıyla bu olay çalışması, İran ve Suudi Arabistan'ın bölgesel mücadelelerinde inançsal farklılıklarını kullanarak birbirlerine karşı üstünlük elde etmeye çalıştığını ileri sürmektedir. Çünkü İran ve Suudi Arabistan toplumlarının etnik ve mezhepsel açıdan karmaşık yapıları, devletlerini siyasi coğrafya kaygıları açısından etkilemektedir. Bu çerçevede bölgesel güç mücadelesi yürüten İran ve Suudi Arabistan’ın ilişkilerindeki çatışma dinamikleri, kimliksel nedenlerle açıklanmıştır. Buna göre onların birbiriyle çatışan inançsal kimliklerini dış politika tercihlerine yansıtmaları, birbirlerini tehdit olarak algılamalarına yol açmaktadır. Bu algı hem aralarındaki bölgesel güç mücadelesinin içeriğini ve çatışma dinamiklerini hem de kimin vekil ve bölge dışı müttefik olup olmayacağını da somutlaştırmıştır. Nitel araştırma yöntemleriyle yazılan bu çalışmada, uluslararası ilişkiler disiplinine katkıda bulunabilmek amacıyla özgün bir dış politika tanımı yapılmıştır. Bu tanım çerçevesinde çalışmanın içeriği tarihsel ve betimleyici bakış açısıyla ele alınmıştır. Ardından güncel sorunlar da dikkate alınarak kimlik perspektifinden Suudi Arabistan ve İran’ın dış politika tutumlarının geleceğine ilişkin sonuçlar ortaya konulmuştur.
Bir Savaş Gemisinde S-CO2 Çevriminin Enerji Verimliliğine Etkisinin İncelenmesi
Authors: ÖZGÜR Arif Emre , ÖZGÜR Mustafa Utku , CEYLAN Volkan
Published: April 2023

Bu çalışmada, MİLGEM Projesi kapsamında üretilen, korvet gemilerinin güç tahrik sistemlerinden çıkan atık ısısından, bir S-CO2 çevrimi ile elektrik enerjisi üretilmesi incelenmiştir. Güç sistemlerinin verilerinden yola çıkılarak, bir termodinamik model oluşturulmuştur. Modelin çözümü, belirli kabuller yapılarak, bir bilgisayar yazılımı ile geçekleştirilmiştir. Sistem verimindeki iyileşme ve üretilen gücün, gemi jeneratörlerinin kapasitelerine oranı belirlenmiştir. S-CO2 sistemi ile 6.3 MW güç üretebileceği ve %33.3 ısıl verim değerlerine ulaşılabileceği gösterilmiştir. S-CO2 sistemi, geminin sahip olduğu 4 dizel jeneratörden daha fazla elektriksel güç üretebileceği belirlenmiştir. Savaş gemileri özelinde, S-CO2 çevrimlerinin performansını inceleyen bir çalışma literatürde mevcut değildir.
Savunma Projelerinin Başarısında Teknoloji Hazırlık Seviyesinin Rolü: Vaka Analiz Çalışması
Authors: KORKMAZ Goksel
Published: April 2023

Savunma projeleri çoğu zaman oldukça maliyetli ve yüksek teknolojiye ihtiyaç duyan projelerdir. Sistem tanımlanırken ortaya çıkan isterlerin karmaşıklığı kimi zaman projenin öngörülen bütçesinin aşılmasına, kimi zaman süresinin çok uzamasına bazen de projenin tamamen iptal edilmesine neden olabilmektedir. İhtiyaç duyulan savunma sisteminin ihtiyaç duyulan zamanda envantere alınamaması sistemin güncelliğini yitirmesine ve artık bir ihtiyaç olmaktan çıkmasına da neden olabilmektedir. Savunma sistemlerinin geliştirilmesinde öncü olan ülkeler teknoloji yeterlilik riski ile daha fazla karşı karşıyayken mevcut sistemleri kopyalayan ülkeler bu riske daha az maruz kalmaktadır. Savunma projelerinin geliştirilmesinde öncü ülke konumundaki ABD milyarlarca dolar harcamasına rağmen karşılaştığı sorunlar nedeniyle bazı savunma projelerini iptal edebilmekte veya başlangıçtaki tedarik miktarını oldukça azaltabilmektedir. Esasında Rusya Çin gibi ülkeler de başladıkları birçok savunma projesini iptal edebilmektedir. Ancak bu ülkelerin şeffaf olmayan yapıları ve projeleri yüksek gizlilik seviyesi ile yürütmeleri bilgiye erişimi sınırlandırmaktadır. Bu nedenle bu çalışmada savunma projelerinin geliştirilmesinde öncü ülke konumunda olan ABD’de milyarlarca dolar harcandığı halde iptal edilen iki proje seçilmiş ve bu projelerin iptal nedenleri vaka çalışması yöntemiyle analiz edilmiştir. Çalışmada teknoloji hazırlık seviyesi ile proje başarısı arasındaki ilişki incelenmektedir. Veri toplama tekniği olarak doküman incelemesi kullanılmakta olup kronolojik sıra takip edilmektedir.
Yabancı Savaşçı Kavramına ve Tipolojisine Ontolojik Güvenlik Bağlamında Yaklaşım
Authors: PEHLİVAN Oğuzhan
Published: April 2023

Yabancı savaşçı kavramı, dünya çatışmalar tarihinde farklı motivasyon kaynakları ile süregelen bir olgu olarak karşımıza çıkmaktadır. Üzerinde uzlaşılmış bir tanım bulunmaması, yabancı savaşçı kavramının bilimsel olarak araştırılmasını güçleştirmektir. Dünya siyasetinin geçmişten günümüze değişen doğası, bu alanda kullanılan kavramların tanımlarını değiştirmektedir. Bu çalışmada, söz konusu problemden hareketle literatürdeki tanımların ve tipolojilerin devletlerin dönemsel güvenlik tehdit algıları ile örtüşecek şekilde oluşturulup oluşturulmadığı sorgulanmış, ayrıca ontolojik güvenlik bağlamında yabancı savaşçı kavramının devletlerin kimlik ve benlik algısına tesirinin hangi yönde olduğu irdelenmiştir. Araştırmada tarama ve döküman incelemesi teknikleri melez bir şekilde kullanılmış, kısmen vaka çalışması bağlamında son yaşanan Rusya’nın Ukrayna’yı işgali üzerinden de örneklere değinilmiştir. Araştırmanın sonucunda, yabancı kavram ve tipolojisinin ülkelerin dönemsel tehdit algılarına göre değişkenlik gösterdiği, yabancı savaşçıların kimlik ve benlik algısı bağlamında devletler üzeinde ontolojik güvensizlik oluşturduğu, radikalleşme ve aşırılık bağlamında terörizm gibi diğer güvenlik tehditlerine dönüşme olaslığı bulunduğu saptanmıştır. Bu minvalde, devletlerin özellikle kritik karar verici seviyesinde söz konusu yabancı savaşçı kavramına bakış açılarını tekrar gözden geçirmelerinin uygun olacağı kıymetlendirilmektedir.
Uluslararası Garanti Anlayışı ve 1960 Kıbrıs Garanti Antlaşması'nın Analizi
Authors: BOZKURT İlyas
Published: April 2023

Kıbrıs’ta 16 Ağustos 1960’da sömürge rejimini sona erdiren ve Kıbrıs Cumhuriyeti’nin kuruluşunu belgeleyen hukuki akitlerden birisi de Garanti Antlaşmasıdır. Söz konusu antlaşma yeni devletin egemenliği, toprak bütünlüğü ve güvenliğinin yanı sıra “devletin işleyiş düzeni”ni (state of affairs) de garanti altına almıştır. Rum tarafına göre; yeni devletin egemenliğini sınırlandırması ve iki toplum arasındaki ayrışmayı perçinlemesi nedeniyle Garanti Antlaşması Kıbrıs Sorununun ortaya çıkmasına sebep olmuştur. Sorunun çözümü için Garanti Antlaşması mutlaka kaldırılmalıdır. Türk tarafına göre ise nüfus açısından daha küçük olan Kıbrıslı Türklerin siyasi, sosyal ve ekonomik haklarının korunmasını garanti altına alan bir devlet düzeni tesis edilmiştir. Devletin bu işleyiş düzeni bozulduğu takdirde, Rumlar; devletin yasama, yürütme ve yargı mekanizmalarındaki çoğunluklarını kullanarak, Türklerin haklarını ellerinden alacak düzenlemeleri hayata geçirecekler ve Türkleri, devletin egemenliğinin kaynağı olan siyasi eşitliğe sahip bir toplum konumundan, basit bir azınlık konumuna indirgeyeceklerdir. Bu nedenle Garanti Antlaşması Türk toplumunun bekası açısından hayati öneme sahip olup, mutlaka devam etmelidir. Bu çalışmanın amacı, tarafların pozisyonlarından bağımsız olarak, uluslararası (UA) garanti anlayışı çerçevesinde Kıbrıs Garanti Antlaşmasını analiz etmektir. Çalışmada önce “garanti” ve “garanti antlaşması” kavramları incelenecek, ardından tarihsel süreç çerisinde garanti güvenceleri ile garantilerin kapsam, biçim ve diğer özellikleri açıklanacaktır. Daha sonra UA garantilerin belirlenen özellikleri çerçevesinde Kıbrıs Garanti Antlaşması analiz edilecektir. Bu çalışmanın argümanı, Garanti Antlaşmasının UA garanti anlayışı ile uyumlu olduğu, “devletin işleyiş düzeni”nin garanti edilmesinin özel bir garanti nesnesi olduğu, ancak UA garanti antlaşmalarında bu tür özel garanti nesnelerinin de sık sık yer aldığı, bu yönüyle de Antlaşma’nın UA garanti anlayışına aykırı düşmediği hususudur.
La cellule de soutien médico-psychologique de l’armée de l’Air
Authors: RENARD M.-D. , FARRET C. , CHABANE M. , ARCHENOUL-LEVALLOIS C. , SOLIGNAC(R) G. , COLAS M.-D. , AUXÉMÉRY Y.
Published: April 2023

Le service médical de psychologie clinique appliquée à l’aéronautique assure depuis plus d’un demi-siècle la prise en charge du personnel navigant militaire et civil selon un triple objectif : la préservation de la santé individuelle et collective, le soutien des forces opérationnelles et l’optimisation de la sécurité des vols. Par sa prise en compte du facteur humain, d’une part, et sa volonté de promouvoir la santé des aviateurs, d’autre part, l’état-major de l’armée de l’Air a créé et positionné au service médical de psychologie clinique appliquée à l’aéronautique un dispositif spécifique : la cellule de soutien médico-psychologique de l’armée de l’Air. Au cours de dix années d’expérience, la cellule s’est forgée une pratique clinique désormais reconnue par la communauté des aviateurs. Le nombre annuel des sollicitations après événements graves a doublé à partir de 2012 : en 10 ans d’activité, près de 150 interventions ont été menées dans ce contexte. Dans ce travail, nous définissons le soutien médico-psychologique après événement grave que nous illustrons d’exemples ; puis, nous abordons les cadres techniques et pratiques du soutien psychologique opérationnel. Enfin, nous évoquons les autres missions de la cellule (consultations ambulatoires, actions de sensibilisation et de formation, activités de recherche et de communication scientifique).
Anal adenosquamous carcinoma on perineal fistula: A case report
Authors: Hajri Amal , Lamnaouar Abderrahmane , Falousse Kabira , Erreguibi Driss , Boufettal Rachid , Saad Rifki El Jay , Farid Chehab
Published: April 2023

Introduction: Adenosquamous Carcinoma (ASC) of the anus presenting both glandular and squamous histopathologic features is a rare colorectal neoplasm. Case presentation: A 63-year-old man presented with a one-year history of intermittent rectal pain and bleeding on a perineal fistula. Pathological analysis of the surgical specimen revealed adenosquamous carcinoma of the anus, The patient received neoadjuvant treatment with chemotherapy and radiotherapy over a period of five weeks. then he underwent abdominoperineal resection and a permanent colostomy. Histology revealed invasive adenosquamous carcinoma on the resection specimen and the patient was started on adjuvant therapy with FOLFIRINOX. Discussion: Primary ASC of the colon and rectum are extremely rare clinical entities with poor prognosis. Most of the data come from individual case reports and a few small series, making it a challenge to understand the histogenesis of the disease. And the treatment modalities are not yet well codified, which has an impact on overall survival. Conclusion: Early diagnosis and radical surgery with other available therapeutic modalities can improve clinical outcomes.
Chronic Vagus-Nerve Activity with Carbon Nanotube Sensors in Freely Moving Rodents v1
Authors: Mccallum Grant
Published: April 2023

This study presents the first chronic recording and decoding of activity in the vagus nerve of freely moving animals. The majority of vagal afferent fibers come from the gut and abnormal vagal activity has been linked to eating and metabolic disorders. The study uses carbon nanotube yarn electrodes, which have small size, high flexibility, and low impedance, to provide a stable, high-signal-to-noise ratio interface for chronic recording in small autonomic nerves in rats, with high-quality signals continuing up to four months after implantation. The technology was successfully applied to make the first direct measurements of vagal tone in freely moving animals, and the neural-recording data was synchronized with continuous video recording of the subjects. The results show several spike clusters that show tuning to animal eating, and the firing dynamics of multiple decoded spike clusters can be used to classify eating compared to drinking, grooming, and resting behaviors.
Open, non-comparative, clinical investigation to evaluate the performance and safety of the medical device H42 (collagen paste for filling) in repairing periodontal pockets due to periodontitis.protocol v1
Authors: not provided franco.barattini
Published: April 2023

Research protocol to evaluate safety and overall performance of a collagen paste for filling (H42) in improving the healing of the gingiva by the reduction of Periodontal Pocket Depth (PPD) from 5 to 8 mm depth during the course of the study.
Job Stress among General and Special School Teachers in Jahrom City, Iran
Authors: Hemati Alamdarloo Ghorban , Moradi Shahram , Moradi Sajedeh
Published: April 2023

Introduction: Teaching is among the careers which are associated with a lot of stress. Occupational or job stress is an unfavorable mental state which is caused by the workplace environment and can seriously impede employees’ performance.
Objectives: The purpose of this research was to compare occupational stress among general and special school teachers.
Methods: 84 teachers (42 were general school teachers and 42 were special school teachers) from Jahrom, Iran were selected as study samples. Special school teachers and general school teachers were chosen using convenience sampling and multistage random sampling methods, respectively. Parker and DeCotiis’s job stress scale was used to assess job stress. The collected data were analyzed by two-way analysis of variance (ANOVA) and multivariate analysis of variance (MANOVA).
Results: Results showed that job stress and its subscales were significantly higher among general school teachers than special school teachers (p <0.05); however, there was no significant difference between male and female teachers in terms of job stress and its subscales (p<0.05).
Conclusion: According to the findings of this study, the Ministry of Education is recommended to prevent job stress by improving the level of services where general school teachers work and holding workshops with the aim of offering teachers some coping strategies to deal with stress in schools.
 
Keywords: Job stress, occupational stress, teachers, general schools, special schools
Effectiveness of Combined Malaysia Healthy Plate Method (Half-half Quarter) and Physical Activity at Workplace Setting Among Healthcare Workers
Authors: Muthuvadivelu Sreevali , Hussin Narwani , Muninathan Prema , Keow Low Phei , Josop Nancy Anne , Ahmed Tajudin Noor Hayati , S.Krishnan Kogilavani , Kamaruddin Ahmad Mu’alzaffardan Putra
Published: April 2023

ABSTRACT

 

INTRODUCTION

Overweight and obesity are becoming a major health issue which contributes to increase in health morbidity and mortality. This study aimed to evaluate the effect of the mainly diet intervention and exercise for weight reduction among obese but healthy adults.

 

METHODOLOGY

This was a quasi-experimental study using designed Structured Diet Program adapted from Malaysia Healthy Plate method (half-half quarter) for weight reduction that lasts for 10 weeks. The anthropometry and biochemistry parameters were monitored and collected pre and 10 weeks post program. The WHO BMI criteria for Asian population cut off points was used to define obesity in this study.

 

RESULT

Thirty healthcare workers (HCWs) were recruited. However, only 27 HCWs completed the program. The pre and post program mean BMI was 32.90kg/m2 and 31.39kg/m2 and weight was 81.25 kg to 77.37kg. The total cholesterol reduced significantly with mean 5.65mmol/l to 5.34mmol/l. Other blood parameters showed some reduction but not statically significant with mean FBS 4.82mmol/l to 4.69mmol/l, mean HDL: 1.43mmol/l to 1.32mmol/l mean LDL: 3.54mmol/l to 3.42mmol/l and mean TG 1.52mmol/l to 1.31mmol/l.

 

 

 

 

CONCLUSION

Overall, the programme led to a considerable reduction in body weight, BMI, and Total Cholesterol. Even though other blood parameters do not show statistically significant reduction but they still showed some reduction post programme. This method is recommended to be implemented among Malaysians for longer duration to achieve significant reduction in blood parameters. However, the commitment and motivation of the HCWs are highly needed to ensure the effectiveness and adherence to the diet method. 

 

(246 words)

Keywords: Diet intervention (Malaysia Healthy Plate)- Physical Activity- Healthcare workers
Literature Review On Factors Influencing Milk Consumption Behaviour Among Adults
Authors: Ahmad Normawati , Rahman Abu Bakar , Harun Siti Nur Farhana , Salleh Kamarulzaman , Jasman Noorlaile
Published: April 2023

Introduction:Milk and dairy products are good sources of high-quality protein. Protein is important during weight loss and subsequent weight maintenance due to the high satiating effect which helps to prevent over-consumption of energy and thereby reduces body fat stores. Furthermore, dairy protein is a good source of essential amino acids for muscle protein synthesis and thus helps to maintain metabolically active muscle mass during weight loss. Regarding milk consumption, it is important to find the association between personal, environmental, and behaviour factors with consuming milk. Objective: The aim of the study is to identify factors influencing milk consumption behaviour among adults. Methods: This study is based on the literature review and on different case studies from different parts of the world to try to fulfill the main scope of factors influencing milk consumption. Results: Based on this review, environmental factors were found to be the main influences on milk consumption behaviour, followed by personal factors and behaviour factors. Conclusion      : This review is also expected to enrich the documentation on the influencing of milk consumption behaviour among adults
Development of Floor Mapping Mobile Robot Algorithm Using Enhanced Artificial Neuro-Based SLAM (ANBS)
Authors:   Department of Industrial Electronics, German Malaysian Institute (GMI), Malaysia, Juhari Khairul Anuar , Ramli Rizauddin ,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Malaysia, Mohamed Haris Sallehuddin ,   Department of Mechanical and Manufacturing Engineering, Faculty of Engineering & Built Environment, Universiti Kebangsaan Malaysia, Malaysia, Ibrahim Zunaidi ,   Sustainable Advanced Manufacturing, Faculty of Technology, University Sunderland, United Kingdom, Mohamed Abdullah Zawawi ,   Petronas Research Sdn Bhd,Kawasan Institusi Bangi, Malaysia
Published: April 2023

A complex and expensive system in floor mapping mobile robot platforms are the challenges in this age of technology revolution. Sensors that are equipped with the robot could be different, the complexity of the algorithm and the robot performance itself are not adequate. In this paper, we present an efficient way with an economically cost-saving mobile robot floor mapping system based on simultaneous localization and mapping (SLAM). The paper will highlight implementing a Rplidar sensor with a floor mapping mobile robot platform with the enhanced error corrections based on the Artificial Neuro-Based SLAM (ANBS) algorithm. The proposed system runs on Robot Operating Systems (ROS) and Tensor Flow programming. The experimental results showed how the different controllers can be improved by adding the ANBS algorithm which intelligently filtering the unnecessary error and produce the precise output on the map. The different controllers also can be used with this algorithm. For this research, the ANBS are tested on Hector SLAM and Gmapping SLAM where the output produced by each SLAM method is fed into the ANBS algorithm. At the end of the experiment, the ANBS improves the output result by 14.67% for Hector SLAM and 17.36% for the Gmapping SLAM and produces a precise map than ever before. In the future, there will be more SLAM method can be embedded with this ANBS algorithm.
Impact of Crack Growth Behavior on High Strength Steel and Sandwich Metal Panel Using the Constant Stress Ratio, Frequency and Thickness
Authors:   Faculty of Mechanical Engineering,Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Isahak A. H. , Abdullah M. F. ,   Faculty of Mechanical Engineering,Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Faidzi M. K. ,   Faculty of Mechanical Engineering,Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, W. Yusof W. Y. ,   Pusat Asasi Pertahanan, Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Abdullah S. ,   Faculty of Mechanical Engineering, Universiti Kebangsaan Malaysia, Selangor, Ali A. ,   Faculty of Mechanical Engineering,Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Mubasyir M. M. ,   Faculty of Mechanical Engineering,Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur
Published: April 2023

The armoured vehicle uses a special solid steel that has a heavy vehicle ratio which causes the performance to decrease after being triggered by high velocity impact bullet on rescue missions thus experiencing the phenomenon of fatigue and unstable crack growth flow. In this study, an investigation on crack growth behaviour was carried out for sandwich metal panel and solid High Strength Steel (HSS) which has high ability in terms of residual life. Meanwhile, sandwiched metal panel contains HSS as face sheets and lightweight material as a solid core. The main objective of this study was to determine the crack growth behaviour on two types of structural material by applied frequency (f=10 Hz), stress ratio (R=0.1), and thickness (10 mm) as a constant parameter. The crack growth experiment used compact tension (CT) specimen as followed the ASTM E647 standard. The benchmark for establishing the crack growth behaviour is the (a-N) graph and the Paris law regime, da/dN against stress intensity in order to determine Paris constant (C and m). Based on the results, the sandwich metal panel is more applicable with the number cycle of N = 23300 with an increase in about 27% compared to solid HSS. It can be concluded that the sandwich metal is most practicable and affordable for using higher level of threat for hard armour vehicle panel.
Vertical Axis Wind Turbine Application for Power Generation
Authors:   Department of Computer Science & Information Technology, Maulana Azad National Urdu University, India, Hussein Dildar , Ahmad Khairol Amali ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia, Mat Nizan Ahmad Zulhelmi ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia, Makmor Nazrul Fariq ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia, Hashim Fakroul Ridzuan ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia
Published: April 2023

Concerns over security for energy sources have led many countries to concentrate on obtaining renewable energy sources. In fact, Malaysia has also studied various alternative energy sources including wind energy. However, the terrain of Malaysia does not allow strong winds to move the wind turbines. Therefore, initial efforts to harness energy from the wind were not very successful. Therefore, this study has improved previous studies by highlighting the concept of vertical axis wind turbine using Magnus effect concept.
Smart Control and Management System for Hydroponic Plant Growth
Authors:   Universitas Mercu Buana, Jakarta, Indonesia, Supegina Fina , . Yuliza ,   Universitas Mercu Buana, Jakarta, Indonesia, Sirait Fadli ,   Universitas Mercu Buana, Jakarta, Indonesia, Md Din Muhamad Faiz ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Makmor Nazrul Fariq ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Jusoh Mohd Taufik ,   Department of Electrical and Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia
Published: April 2023

Hydroponics is one of the cultivation methods that uses water as a plant growth medium. In this technique, a mineral solution is added to the water solvent, which enables the process of nutrient uptake by the plant. Several important parameters need to be observed to use hydroponic cultivation methods such as temperature, humidity, water, and nutrient requirements. Sunlight is also needed for the process of photosynthesis to take place. This research uses hydroponic techniques in a hydroponic growth space, with LED growth lights as an alternative to sunlight because the space is covered without sunlight. Monitoring of the output in the box was detected using a temperature sensor, a humidity sensor, an ultrasound sensor to detect the height of the plant, and a water level sensor with the height of the water measured as the plant medium. The sensor measurement results in the hydroponic growth chamber are described as follows: the fan cooler operates when the temperature is > 30oC, and the humidity > 60%. The water pump works when the water level is less than 50% of the set point. Control on the lights was carried out with the LDR sensors each reaching a setting point of >500 in bright conditions, and <500 in dark conditions. The average update / data time received in the web is 2.4 seconds.
Thermal Conductivity Properties of Graphene Based Epoxy Nanocomposite
Authors:   Faculty of Engineering, Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Malaysia, Othman Raja N. , Zainordin Muhammad S. ,   Faculty of Engineering, Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Malaysia
Published: April 2023

Thermally conductive polymer composites offer new potentials for replacing metal parts in numerous applications, including power electronics, electric motors and generators, heat exchangers, and so on. Current interest to enhance the thermal conductivity of polymers is focused on the selective addition of nanofillers with high thermal conductivity. Therefore, graphene is the best choice material for thermally conductive composite. This study focuses on conducting the experiment to measure the thermal conductivity of graphene based epoxy nanocomposites with various variables and preparation conditions. Along this project, a series of experiment is done by manipulating the graphene loading ratio, the stirring rate, and the stirring time. 34 samples were prepared, tested, and analysed in order to determine the composite samples with the optimum variables. At the end of the experiment, the highest thermal conductivity of graphene based epoxy nanocomposites is identified at 0.204 W/mK. The optimum variables and conditions that came out with the best result are 0.3 wt% of graphene loading and 500 rpm of stirring rate at 30 minutes of stirring time. The enhancement of the thermal conductivity is 19.53% higher than that of the neat epoxy alone which is 0.17067 W/mK. This project is expected to serve as a good reference for future studies.
Performance Comparison between NoSQL (RethinkDB) and MySQL Database Replication from Master to Slave in Big Data
Authors:   Department of Computer Science & Information Technology, Maulana Azad National Urdu University, India, Hussain Dildar , Omar Mohammad ,   Department of Computer Science & Information Technology, Maulana Azad National Urdu University, India, Ahmad Khairol Amali ,   Department of Electrical & Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Adnan Ja’afar ,   Department of Electrical & Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia, Ahmad Khaleel ,   Department of Electrical & Electronic Engineering, Faculty of Engineering, National Defence University of Malaysia
Published: April 2023

When database is stored in one computer or server, certain issues related to disaster (in terms of natural or un-natural) problem may arise with reference to geographical connection and geographical distribution of servers. Here, replication feature plays an important role. There were many techniques and methodologies for geographically distributed servers, but the problem was of one master. When an authorized user updates his database on a client database server then this client database server updates his master database server and at last, the master database server updates all its client’s database servers. The described process is called database replication. In this process, there are several main parameters that are important, i.e., bandwidth, memory, and processor time. In this paper, the analysis is focused on comparing which database (NoSQL family-RethinkDB and MySQL) utilize how much memory, processor, and time during replication of database from client to master.
Performance of Prefabricated Sewage Treatment Plants at a Military Academy
Authors:   Department of Civil Engineering, Faculty of Engineering, National Defense University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia, Md Nor Mohd Asri , Mohd Nazir Nabihah ,   Development and Maintenance Department, National Defense University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia, Sahusi Shahrul ,   Royal Engineering Regiment, Malaysia Armed Forces, Kuala Lumpur, Malaysia, Suif Zuliziana ,   Department of Civil Engineering, Faculty of Engineering, National Defense University of Malaysia, Sg. Besi Camp, Kuala Lumpur, Malaysia
Published: April 2023

This paper presents the results of performance monitoring of wastewater treatment systems installed at Universiti Pertahanan Nasional Malaysia (UPNM). UPNM is a military-based university located in Sungai Besi Camp, Kuala Lumpur, Malaysia. As the university expands, new buildings were constructed and new prefabricated sewage treatment plants (STPs) were installed. Effluent of these STPs were monitored and compared with required standards. Effluent samples were collected from three STPs for three months and tested for parameters of pH, temperature, biochemical oxygen demand (BOD), chemical oxygen demand (COD), ammoniacal nitrogen, nitrate, and phosphorus. The results were then compared with the standard B of the Environmental Quality (Sewage) Regulations 2009. Diurnal fluctuation of the effluent quality was also studied. From the data observed, it shows that the performance of the wastewater treatment plant is good. The effluent quality also achieved the allowable standards set by the authority. Maximum diurnal fluctuation was observed for COD which fluctuated between 18 and 52 mg/L which is still lower than standard B for COD effluent limit of 200 mg/L.
Tensile properties of Graphene Epoxy Nanocomposite
Authors:   Faculty of Engineering, Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Malaysia, Othman Raja N. , Zainudin Abdul H. ,   Faculty of Engineering, Universiti Pertahanan Nasional Malaysia (UPNM), Sg. Besi Camp, Kuala Lumpur, Malaysia
Published: April 2023

In this research, tensile test was conducted to reveal the notable enhancement of Young Modulus and tensile stress composites. Epoxy resin is a cross-linked polymer, thus it has major influence on the properties of polymers generally in hardness, strength, stiffness, brittleness, and better dimensional stability. Epoxy resin plays many roles in industry especially in adhesion process in automotive and aerospace composites. Discovered in 2004, graphene has revealed that it has tremendous mechanical properties and thermal properties. On top of that, addition of graphene to epoxy can lead to innovate in various adhesion industry and structural materials. In this project, an experiment was conducted in various phases which varying with graphene loading ratio, stirring speed, and stirring time. Outcome from this experiment showed that 1.0% of graphene loading with 500 rpm stirring speed and 30 minutes stirring time shows the optimum condition to enhance the measured properties. The enhancement showed are 53.03 % of Young Modulus and 51.19 % for tensile test result compared to the preliminary result. This study clearly stated the enhancement of mechanical properties of epoxy composites by merely adding 1 wt.% graphene.
A Conceptual Approach for Developing an Ergonomic Intervention for Preventing Work‐Related Musculoskeletal Disorders (WMSD) amongst Workforce at Power Plants
Authors:   Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia, Thiruchelvam Sivadass , Kabilmiharbi Nurainaa ,   Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia, Syaifoel Fevilia Nurnadia Adria ,   Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia, Mohamad Rafaai Zubaidi Faiesal ,   Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia, Ghazali Azrul ,   Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia, Mustapha Kamal Nasharuddin ,   Institute of Energy Infrastructure, Universiti Tenaga Nasional, Jalan IKRAM-UNITEN, Kajang, Selangor, Malaysia, Sabri Muda Rahsidi ,   TNB Research Sdn. Bhd., Kawasan Industri Penyelidikan, Kajang, Selangor, Malaysia
Published: April 2023

Work at fossil-fuelled power plant is physically strenuous and could expose workers to Work-related Musculoskeletal Disorder (WMSD) such as Carpal Tunnel Syndrome (CTS), low-back pain (LBP), or shoulder tendonitis. WMSDs are considered as a leading factor in disabilities and absenteeism, reduced production, and increased costs. WMSDs in the workplace have been studied extensively and it is a common notion that the work itself is a major cause of MSDs. Work environment contributed to these types of disorders and are made worse by the working conditions or workplace risk factors. All those mentioned common occupational injuries are related with the ergonomic field of study. By implementing appropriate ergonomic interventions, the above-mentioned work-related injuries and resulting disability is potentially preventable. The major workforce in these plants are either associated with handling of machineries or serving as control room operators. Hence, this category of manpower is subjected to physical stress and workplace injuries if there is no form of ergonomic interventions. Previous studies have shown that common tasks performed by workers in the electric power industry often involve the use of a manual tool and revealed that less than 1% of the general population has sufficient strength to manually perform the task resulting in decreased productivity and worker injury. Departing from the aforementioned need, this study embarks to assess exposure to risk factors for WMSDs and to provide a basis for ergonomic intervention at the workplace. Therefore, by focusing on health and safety matter of workers at our power plants, we are actually applying a form of business risk management (BRM) to consider possible impacts of related foreseeable significant risks on any electricity utilities performance. It is envisaged that this study could identify the ergonomics interventions which will reduce staff medical bills, compensation, and lost time injury from MSDs.
Simulation Studies of Vibration Isolation Using Electromagnetic Damper
Authors:   Faculty of Engineering,Universiti Pertahanan Nasional Malaysia (UPNM),Sg. Besi Camp, Kuala Lumpur, Malaysia, Mohd Yusoff Mohd Fazli , Ahmad Zaidi Ahmad Mujahid ,   Faculty of Engineering,Universiti Pertahanan Nasional Malaysia (UPNM),Sg. Besi Camp, Kuala Lumpur, Malaysia, Ishak Saiddi Ali Firdaus ,   Faculty of Engineering,Universiti Pertahanan Nasional Malaysia (UPNM),Sg. Besi Camp, Kuala Lumpur, Malaysia, Awang Mat Kamil ,   Faculty of Engineering,Universiti Pertahanan Nasional Malaysia (UPNM),Sg. Besi Camp, Kuala Lumpur, Malaysia, Md Din Muhamad Faiz ,   Faculty of Engineering,Universiti Pertahanan Nasional Malaysia (UPNM),Sg. Besi Camp, Kuala Lumpur, Malaysia
Published: April 2023

This paper presents the review of electromagnetic damper as a vibration/isolation material. A bunch of articles about vibration and suspension system was reviewed and the key factors that contribute to electromagnetic damper was identified. Electromagnetic damper has been given special attention from many researchers and thus being among the important research area in vibration system. Vibration concept of electromagnetic damper has been elucidated by referring to several paper that demonstrate the usage of electromagnetic damper. Finite element magnetic method (FEMM) software has been used in order to identify the best configuration of geometry in the system. A simulation in Matlab was done by considering a quarter car model with a theoretical value from the Faraday’s Law equation involved in electromagnetic damper. The slotted and cylindrical geometry configurations have been simulated using FEMM and the result clearly shows that the slotted configuration has a better effect on the electromagnetic damper system.
Book Review: Food Security Policy and Human Security in Malaysia by Bakri Mat, Zarina Othman and Rashila Ramli, publisher: Universiti Kebangsaan Malaysia (UKM) Press, 2019, 216 pp. ISBN: 978-967-412-902-6
Authors: Dollah Ramli
Published: April 2023

Book Review: Food Security Policy and Human Security in Malaysia by Bakri Mat, Zarina Othman and Rashila Ramli, publisher: Universiti Kebangsaan Malaysia (UKM) Press, 2019, 216 pp. ISBN: 978-967-412-902-6 This book review is written in Bahasa Malaysia. It is a reviewed article on the book written in Bahasa Malaysia and published by the UKM Press undertitled, Food Security Policy and Human Security in Malaysia. To access it, please order the printed version or browse the electronic version of this article. The abstract is not available for the book review.
"IN A TANGLED MORASS OF DEFINITIONS AND PERMUTATIONS THAT GROWS AS RELENTLESSLY AS THE FUNGUS IN «THE HOUSE OF USHER»": ATTRIBUTIVE FEATURES OF THE HORROR GENRE
Authors:   Taras Shevchenko national University of Kyiv, Borzova Mariia
Published: April 2023

The theorizing of literary horror is characterized by constant change, and as it evolves it provides more insightful models of interpretation. As David Hartwell, one of the key theorists in the field, states in "The Dark Descent: The Evolution of Horror" (2001), horror has reached that point of development where we can finally appreciate its achievements. In literary criticism, scholarships devoted to the horror genre began to appear as early as the 1920s. Since then critical thought has been dealing with disagreements regarding its definition. In particular, the theory of horror operates such terms as "dark fantasy", "mystery story", "horror story", "gothic story", "story about the supernatural" and others, and they are often used as synonyms. Consequently, there is a need to clarify the definition of horror and its collocations, at least in those studies which have a theoretical component as a key one. While the definition of horror is still a matter of discussion, there is a consensus view on the genre’s key distinctive feature: creating a certain mood throughout the textual tissue. Particularly, a famous literary scholar John Cuddon claims that horror "shocks", "frightens", "induces a feeling of repulsion or loathing" (The Penguin Dictionary of Literary Terms and Literary Theory, 2014). Douglas E. Winter concurs with this statement while affirming in his introduction to the anthology "Prime Evil" (1989) that horror is not only a genre but an emotion. Hence, it is critical to identify the ways in which the emotion of horror is constructed in composition, plot mechanics and characterization, as well as outline specific linguistic and stylistic features of horror texts. This paper deals with the theoretical aspects of horror as it aims to refine its attributive features within the interest of literary criticism. We analyzed a variety of definitions of horror across various disciplines, in diachrony and synchrony, and proposed a definition that can be appropriated in literary horror studies.
İnverte rektal divertikül: Nadir bir kolonoskopik bulgu
Authors: ÖLMEZ Şehmus , TAŞ Adnan , AKÇAER ÖZTÜRK Nevin , SARITAŞ Bünyamin
Published: April 2023

Kolonda inverted divertikül kolonoskopide nadir görülebilen bir bulgudur. Rektumda inverted divertikül görülmesi ise çok daha nadirdir. Kolonda inverted divertiküller, kolon poliplerine benzerler. Tüm polypoid lezyonlarda dışlanmalıdırlar. Poliplerden ayırt edilmesi, polipektomi yapılması durumunda kolon perforasyonu olma riski nedeniyle çok önemlidir. İnverted rektal divertiküller kolonoskopi sırasında çok nadiren görülürler. Burada rektumda inverted divertikül saptanan nadir görülen bir vakayı sunacağız.
Akut fosfat nefropatisi: İki olgu sunumu ve literatürün gözden geçirilmesi
Authors: ERGÜN SEZER Gamze , ÖZDEMİR Arzu , DİRİM Ahmet Burak , BARAN Erdem , YILMAZ Mürvet
Published: April 2023

Fosfat nefropatisi; fosfat kristallerinin renal tübülleri etkilemesiyle oluşan önce akut, sonrasında kronik böbrek hasarı ile seyreden bir klinik tablodur. Kolonoskopi birçok endikasyonla sık olarak kullanılan bir yöntemdir. İşlem öncesinde hazırlık amaçlı kullanılan oral fosfat içerikli pürgatifler bu tablonun gelişimine yol açmaktadır. Nefropati gelişme riski yüksek olan gruplarda, fosfat içermeyen pürgatiflerin kullanılması önerilmektedir. Fosfat nefropatisi tedavisinde temel yaklaşım hasarın gelişimini önlemektir. Biz bu yazımızda, oral sodyum fosfat ile kolonoskopi yapılan ve işlem sonrası fosfat nefropatisi ile uyumlu akut böbrek hasarı gelişen iki vakayı sunmayı amaçladık.
코로나19 감염병 상황에서 아동보호전문기관 상담원의 근무 경험에 대한 질적 연구
Authors:   center for social welfare research yonsei university, OH Sehyeon , Kim Dami
Published: April 2023

The purpose of this study is to explore the work experience of caseworkers at child protection agencies during the COVID-19 pandemic. Six caseworkers from child protection agencies in Daejeon City were selected as participants and in-depth interviews were conducted. The collected data were analyzed using thematic analysis. The analysis yielded three themes and 10 subthemes. The three themes derived were “urgent problems to resolve amid the spread of infectious diseases,” “exhaustion of caseworkers who struggled to change work environments,” and “measures to effectively respond to infectious diseases in the field of practice.” Based on the results, the study suggested preparing non-face-to-face visit plans for children who entered the facility separate from their parents, improving the rigid organizational culture, and expanding services to prevent the exhaustion of caseworkers.