ANALISIS UJI KEAUSAN DAN STRUKTUR MIKRO BAJA CARBON RENDAH MELALUI PROSES NITRIDING

Penelitian ini bertujuan untuk mengetahui sifat mekanis baja karbon rendah dengan proses nitriding. Proses perlakuan panas dilakukan pada temperatur 925-950 oC, dengan penahanan waktu selama 10 menit, lalu didingan melalui udara selama 24 jam, dengan melakukan uji kekerasan untuk menganalisa keausan menghitung nilai ketahan aus, dan mikro menganalisa perubahan struktur mikro. Dari hasil penelitian ini diperoleh hasil Volume keausan yang terjadi pada baja karbon rendah pada spesimen normal adalah 89,4 mm3, pada spesimen dengan proses nitriding 925 oC adalah 53.3 mm3 dan pada spesimen dengan proses nitriding 950 oC adalah 34.6 mm3. Laju keausan yang terjadi pada baja karbon rendah pada spesimen normal adalah 0.62 mm3, pada spesimen dengan proses nitriding 925 oC adalah 0.37 mm3 dan pada spesimen dengan proses nitriding 950 oC adalah 0.24 mm3. Struktur mikro material baja karbon rendah mengalami perubahan, dimana semakin tinggi temperatur proses nitriding yang diberikan unsur ferrite dan pearlite mengalami penurunan tetapi unsur austenitnya mengalami peningkatan dalam dimensi dan penyebarannya

Frontiers of exclusion and enclusion: post-apartheid suburban social dynamics in East London, Beacon Bay

This dissertation deals with the nature of the black middle-class assimilation in the South African suburban space, a space that was the sole preserve of the white middle-class during apartheid. It explores the relationship between these races as they come to meet in this space and what new identities are being formed. It also explores the relationship between both the black and white suburbanites and the urban poor who stay in an adjacent area to the suburb. The study uses the Beacon Bay area, which is constituted by one of East London’s most affluent suburbs and a poor township, Nompumelelo, to show how the emergent black middle-class has managed to enter this space in the post-apartheid era. Previous studies by Richard Ballard (2004) and Grant Saff (2001) have shown how the white middle-class has always been against any form of race or class mixing. Within the suburb, the new black suburbanites in Beacon Bay appear to have been welcomed but with conditions by their fellow white counterparts. The relationship between these two races does not stretch beyond meet and greets and it is only in the second generation black middle-class that you find better and non-superficial relations with fellow white suburbanites. In the older generation, the generation that experienced apartheid, the relationship between these two races has been that of tolerance and serious escape of contact unless when necessary. The children of both white and black families, though, have a far better relationship in school and in sport than their parents. This has created another area of contact for both these races and it bears potential for meaningful integration in the suburban space. Externally as it relates to relations between the black middle-class and the urban poor, the findings show that these new black suburbanites express a similar discomfort as the white suburbanites about the urban poor’s presence in the area. This shows that the evolution of the Beacon Bay suburb, with its deep-rooted discourse of white middle-class exclusivity, has not been entirely about hatred of the urban poor necessarily but about an identity ascription of what it means to live in a suburb. Despite these realities traditional ceremonies organised by the black middle-class in the suburbs and the church appear to be playing a role in creating relations between these suburbanites and the Nompumelelo residents. This is why we have decided to use the conceptualisation of the 18th century frontier zone as the borders of segregation within the suburb and between the suburban residents and those of the township can be crossed and re-crossed

Comparison of Crossflow Turbine Performance through Nozzle Position Variations Using ANSYS Simulation

The performance comparison of Crossflow turbines is greatly influenced by the position of the nozzle in the conversion of water energy into mechanical energy that occurs through the blades, runners, and shafts of Crossflow turbines. The study aims to directly examine the visualization of water fluid dynamics across the turbine runner blade and enhance the performance of the Crossflow turbine by varying the nozzle position. This study intends to investigate the impact of water flow dynamics and emission on the performance of Crossflow turbines with a combined horizontal-vertical nozzle position, specifically focusing on the magnitude of the number of turbine blades driven and the size of the runner blade area. The objective of investigating nozzle position variations in Crossflow turbines is to determine the specific nozzle position at which the turbine blade may efficiently extract maximum energy from the water flow, hence optimizing turbine performance. The research method using models made using CAD software is AutoCAD by exporting to IGES or IGS format to be compatible with ANSYS. The simulation of this research is with post-processing. There are three, namely making animations, making contours, and taking data to compare cross-turbine performance using variations in nozzle position. Crossflow turbine performance with horizontal nozzle position torque and turbine power is lower, and there is an increase in a vertical position. Then, the horizontal and vertical nozzle position is very good because the nozzle is more effective with maximum turbine performance, namely 13.811-watt turbine power 1,099 turbine torque at 120 rpm

Pengembangan Bahan Ajar e-Modul Menggunakan Aplikasi Flibook Pada Materi Klasifikasi Makhluk Hidup

Education is important to create an intelligent, peaceful, open and democratic society. Therefore educational reform must always be carried out to improve the quality of education of a nation. E-module is a supporting factor in the teaching and learning process. The purpose of this research is to produce an e-module using the flipbook application on the classification of living things. The research method used in this research is the research and development method. The 4-D development model consists of four main stages, However, in this study the development that will be carried out will only reach the develop stage. The results of this study concluded that the development of interactive e-modules has very good qualifications. The development of an e-module is needed in connection with the implementation of distance education which has very different learning conditions from before the Covid 19 pandemic. The natural science material available in the student handbook is incomplete and makes it difficult for students to understand the material that must be delivered with face-to-face limitation

Safaricom and M-PESA in Kenya: Financial Inclusion and Financial Integrity

The recent and widespread availability of affordable mobile phone technology in developing countries has paved the way for the development of a number of mobile money and electronic remittance services. One of the most successful of these services is Safaricom’s M-PESA program, launched in the East African nation of Kenya in March 2007. Since then, the program has successfully enrolled 15.2 million users, transferred more than US$1.4 trillion in electronic funds, and contributed significantly to poverty alleviation and financial inclusion efforts in rural Kenya. This Article seeks to trace the development of M-PESA in Kenya, provide a snapshot of the Kenyan implementation of and experience with the program, and consider the role that services like M-PESA might play in national and international anti-money laundering and counter-terrorist financing efforts

Keterampilan Dasar Mengajar Mahasiswa Praktik Pengalaman Lapangan Program Studi Pendidikan Biologi: (Basic Teaching Skills of Field Experience Students in Biology Education Study Program)

Field experience practice is a course that enables students to enhance the fundamental teaching abilities gained during microteaching. In the activities of field experience practice, students are given a more extended duration to teach compared to microteaching, which allows for better evaluation of all aspects of fundamental teaching skills. This study aims to analyze the basic teaching abilities of PPL students of the biology education study program in secondary schools throughout Kupang City. This is a quantitative research that utilizes a descriptive research design. The findings indicate that students who practice had 84% proficiency in opening and closing skills, 83% in explaining skills, 77% in questioning skills, 78% in variation skills, 72% in reinforcement skills, 80% in class management skills, 88% in small group and individual teaching skills, and 76% in small group discussion leading skills. The study concludes that the skill of providing reinforcement is the only basic teaching skill that falls into the sufficient category, while the other 7 basic teaching skills are considered to be in the good category. Abstrak. Praktik pengalaman lapangan merupakan mata kuliah yang memfasilitasi mahasiswa untuk mengembangkan keterampilan dasar mengajar yang telah mereka dapatkan saat  microteaching. Pada kegiatan praktik pengalaman lapangan, mahasiswa memiliki durasi waktu yang lebih panjang untuk mengajar yaitu 40-135 menit dibandingkan dengan microteaching hanya 15-20 menit sehingga memungkinkan penilaian yang lebih baik terhadap semua aspek keterampilan dasar mengajar. Penelitian ini bertujuan untuk menganalisis keterampilan dasar mengajar mahasiswa PPL program studi pendidikan biologi di sekolah menengah di kota Kupang. Penelitian ini merupakan penelitian kuantitatif dengan desain penelitian deskriptif. Hasil penelitian ini menunjukkan bahwa mahasiswa praktikan memiliki keterampilan membuka dan menutup pembelajaran sebesar 84%, keterampilan menjelaskan sebesar 83%, keterampilan bertanya  sebesar 77%, keterampilan mengadakan variasi sebesar 78%, keterampilan memberikan penguatan sebesar 72%, keterampilan mengelola kelas sebesar 80%, keterampilan mengajar kelompok kecil dan perorangan sebesar 88%, dan keterampilan memimpin diskusi kelompok kecil sebesar 76%. Kesimpulan dari penelitian ini adalah terdapat 1 indikator keterampilan dasar mengajar yang ada dalam kategori cukup yaitu keterampilan memberikan penguatan sedangkan 7 keterampilan dasar mengajar lainnya ada dalam kategori baik

PEMETAAN POTENSI DESA DALAM MENDIRIKAN BUMDES DI DESA LIABEKE KECAMATAN LIO TIMUR KABUPATEN ENDE

Desa merupakan lembaga pemerintahan terkecil yang diamanatkan untuk mengembangkan sejumlah potensi lokal melalui pendirian Badan Usaha Milik Desa (BUMDes). Hal ini juga menjadi program strategis pemerintah di mana pemerintah menargetkan didirikannya sejumlah BUMDes di Indonesia. Namun ada beberapa Desa yang hingga saat ini belum memiliki BUMDes, salah satunya adalah Desa Liabeke, Kecamatan Lio Timur, Kabupaten Ende. Pemerintah Desa Liabeke telah memiliki inisiatif untuk membentuk BUMDes, namun hal ini belum terealisasi dengan baik karena belum semua tahapan dilalui dengan baik. Hal ini kemudian mendorong tim melakukan pengabdian kepada masyarakat untuk melakukan sosialisasi dan pemetaan potensi desa dalam rangka pendirian BUMDes di Desa Liabeke. Kegiatan pengabdian masyarakat dilaksanakan dalam beberapa  tahapan, yaitu: analisis permasalahan mitra, pengumpulan data (kuesioner), sosialisasi dan pelatihan, pengisian kuesioner pasca sosialisasi, dan evaluasi hasil pelaksanaan. Kegiatan pengabdian masyarakat ini menghasilkan sejumlah dokumen pemetaan potensi desa dan pemilihan jenis usaha. Hasil pengabdian ini diharapkan dapat membantu pemerintah Desa dalam mendirikan BUMDes di Desa Liabeke

School Counsellors’ Knowledge of Depression among Senior High School Students in Sekondi-Takoradi

This study sought to examine the school counsellors’ knowledge of depression among senior high school students in Sekondi- Takoradi Metropolis. The study was a descriptive survey that adopted the positivist paradigm. The population for the study was 80 trained school counsellors in the metropolis. Census sampling technique was used in selecting the 80 trained school counsellors. Structured questionnaire was used to collect the data. Descriptive statistics of frequency counts and percentages were used to analyse the data. The study revealed that school counsellors have insufficient knowledge with regard to identification, assessment and intervention as well as referring students who are possibly experiencing depressive symptoms to the appropriate professionals. Based on the findings, it is therefore recommended that school counsellors’ training programmes in the universities and other training institutions should include comprehensive training of counsellors on mental health disorders and use of therapeutic testing and assessment inventories during their training to provide counsellors with the requisites knowledge with regard to the identification, assessment and intervention of mental health school related disorders

Frontiers of exclusion and enclusion: post-apartheid suburban social dynamics in East London, Beacon Bay

This dissertation deals with the nature of the black middle-class assimilation in the South African suburban space, a space that was the sole preserve of the white middle-class during apartheid. It explores the relationship between these races as they come to meet in this space and what new identities are being formed. It also explores the relationship between both the black and white suburbanites and the urban poor who stay in an adjacent area to the suburb. The study uses the Beacon Bay area, which is constituted by one of East London’s most affluent suburbs and a poor township, Nompumelelo, to show how the emergent black middle-class has managed to enter this space in the post-apartheid era. Previous studies by Richard Ballard (2004) and Grant Saff (2001) have shown how the white middle-class has always been against any form of race or class mixing. Within the suburb, the new black suburbanites in Beacon Bay appear to have been welcomed but with conditions by their fellow white counterparts. The relationship between these two races does not stretch beyond meet and greets and it is only in the second generation black middle-class that you find better and non-superficial relations with fellow white suburbanites. In the older generation, the generation that experienced apartheid, the relationship between these two races has been that of tolerance and serious escape of contact unless when necessary. The children of both white and black families, though, have a far better relationship in school and in sport than their parents. This has created another area of contact for both these races and it bears potential for meaningful integration in the suburban space. Externally as it relates to relations between the black middle-class and the urban poor, the findings show that these new black suburbanites express a similar discomfort as the white suburbanites about the urban poor’s presence in the area. This shows that the evolution of the Beacon Bay suburb, with its deep-rooted discourse of white middle-class exclusivity, has not been entirely about hatred of the urban poor necessarily but about an identity ascription of what it means to live in a suburb. Despite these realities traditional ceremonies organised by the black middle-class in the suburbs and the church appear to be playing a role in creating relations between these suburbanites and the Nompumelelo residents. This is why we have decided to use the conceptualisation of the 18th century frontier zone as the borders of segregation within the suburb and between the suburban residents and those of the township can be crossed and re-crossed

ANALISIS VARIASI JUMLAH SUDU PADA KINCIR AIR ARUS BAWAH SEBAGAI TENAGA IRIGASI SKALA LABORATORIUM

ANALISIS VARIASI JUMLAH SUDU PADA KINCIR AIR ARUS BAWAH SEBAGAITENAGA IRIGASI SKALA LABORATORIU