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All Journal Conference on Innovation and Application of Science and Technology (CIASTECH) JOURNAL OF SCIENCE AND APPLIED ENGINEERING Prosidia Widya Saintek Jurnal Riset Akuntansi Journal of Education and Teaching Learning
Aji Suraji
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Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mechanical Engineering Social Sciences Transportation Other

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ANALISIS PENGARUH BEBAN SUMBU KENDARAAN NIAGA PADA KONDISI BEBAN NORMAL TERHADAP PERKERASAN DI RUAS JALAN MALANG-SURABAYA Osvaldo trindade; Aji Suraji; M Cakrawala
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

Dalam analisis perkerasan jalan ini digunakan metode terbaru, sehingga untuk metode terbaru yang biasa dipakai adalah MPD 2017. metode tersebut hanya meninjau mengenai beban normal Dalam penelitian ini meninjau jalan nasional Malang-Surabaya, penelitian ini diawali dengan mencari LHR masing-masing jenis kendaraan dengan presentase sebesar 65% untuk motor, 21% untuk kendaraan ringan, 11% untuk kendaraan berat dan 1% untuk kendaraan tak bermotor dan untuk kendaraan niaga mendapatkan 4%. Selanjutnya dihitung kumulafit beban beban sumbu standar CESA berdasarkan MDP 2017 dengan mengunakan tabel VDF regional yaitu regional jawa dengan beban normal. Perhitungan yang didapatkan untuk nilai CESA dengan masing-masing arah dan nilai CESA untuk arah malang-surabaya mendapatkan nilai sebesar 440 x 106 kemudian nilai CESA untuk arah Surabaya-malang medapaktan nilai sebesar 479 x 106 dari nilai yang dapat per masing-masing akan dicocokan dalam tabel untuk mendapatkan desain perkeresan lentur opsi minimum.Untuk dsain tebal perkersan yang ditenukan dari hasil perhitungan nilai CESA maka dsain tebal perkerasan arah malang-surabaya dimulai dengan aspalt Concrete Wearing Coarse dengan tebal 5 cm AC BCA setebal 6 cm AC Base setebal 22 cm pondasi pondasi agregat kelas A setebal 15 cm dan urugan pilihan setebal 35cm, dan sebaliknya untuk arah Surabaya-Malang memiliki kesamaan dsain tebal struktur perkasaraan dengan aspalt Concrete Wearing Coarse dengan tebal 5 cm AC BCA setebal 6 cm AC Base setebal 22 cm pondasi pondasi agregat kelas A setebal 15 cm dan urugan pilihan setebal 35cm.
HUBUNGAN ANTARA TINGKAT PELAYANAN JALAN DENGAN EMISI GAS BUANG PADA SALAH SATU BUNDARAN DI BATU PAHAT, JOHOR Julianus Bayu Setiawan; Aji Suraji; Abdul Halim
Conference on Innovation and Application of Science and Technology (CIASTECH) CIASTECH 2020 "Peranan Strategis Teknologi Dalam Kehidupan di Era New Normal"
Publisher : Universitas Widyagama Malang

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Abstract

Penggunaan kendaraan di Malaysia semakin meningkat dan mengakibatkan kemacetan jalan raya terutama di persimpangan. Dengan demikian, persimpangan perlu dirancang dengan baik untuk mengakomodasikan kapasitas kendaraan serta untuk mengurangi titik konflik yang dapat menyebabkan kecelakaan. Penelitian ini dilakukan di Bundaran Simpang Rantai, di Batu Pahat, Johor yang mempunyai tiga lengan yang menghubungkan dua jalan persekutuan iaitu Jalan Kluang (R002), dan Jalan Tanjung Laboh (R001) serta satu jalan utama menuju ke pusat bandar Batu Pahat iaitu Jalan Rahmat (R003). Dengan demikian, bundaran ini merupakan jalan utama pengguna jalan raya di kawasan Batu Pahat. Tujuan penelitian ini adalah untuk mengetahui LOS, dan emisi kendaraan yang dihasilkan dari Bulatan Simpang Rantai. Metode analisis data kenderaan yang digunakan adalah dengan menggunakan software Microsoft Excel dan Signalised and Unsignalised Intersection Design and Research Aid versi 8.0 (SIDRA) yang merujuk kepada Highway Capacity Manual (HCM) 2010. Dua jenis data digunakan di dalam penelitian ini yaitu data primer dan data sekunder. Data primer melibatkan data geometri bulatan. Manakala data sekunder terdiri daripada data isipadu kenderaan diperolehi melalui video daripada Majlis Perbandaran Batu Pahat (MPBP) dan data kapasitas serta LOS melalui kajian terdahulu. Setelah analisis daripada perisian SIDRA versi 8.0 dilakukan, Proses analisis dari LOS, Berdasaarkan kendaraan terbanyak adalah pada 25-09-2018 dengan jam puncak 8.15 pagi - 8.30 pagi, kinerja bundaran juga menunjukkan hasil yang buruk pada 25-09-2019, sedangkan angka tertinggi Emisi kendaraan juga pada tanggal 25 -09-2018 yang setara dengan 4.579,1 kg / jam, oleh karena itu secara umum kinerja bundaran tidak baik dan dapat memiliki dampak negatif pada kehidupan di sekitar bundaran.
UJI KUAT TEKAN DAN MODULUS ELASTISITAS DENGAN KOMBINASI PASIR HITAM DAN COKLAT DENGAN TAMBAHAN SIKA Mohamad Ansor; Abdul Halim; Aji Suraji
Prosidia Widya Saintek Vol 1, No 1 (2022)
Publisher : Universitas Widyagama Malang

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Abstract

Penelitian ini mengenai pengujian kuat tekan dan modulus elastisitas dengan kombinasi pasir hitam dan pasir coklat dengan  tambahan zat admixtur sika. Tujuan dari penelitian ini adalah mengetahui kualitas beton yang ditinjau dari kuat tekan dan modulus elastisitas dari bahan campuran pasir hitam dan pasir coklat dengan tambahan zat admixtur sika. Penelitian akan membuat 25 benda uji dengan campuran pasir hitam dan pasir coklat dengan tambahan zat sika 0,4% dengan komposisi pasir coklat 0%, 25%, 50%, 75%, 100%. Penelitian ini juga menggunakan metode analisis anova dengan menggunakan percobaan 1 faktor dalam rancangan acak lengkap. Hasil penelitian ini menunjukkan bahwa penambahan pasir coklat 25%, 50%, 75%, 100% dan zat sika sebanyak 0,4% tidak dapat memberikan kontribusi positif terhadap beton dimana beton mengalami penurunan sehingga membuat nilai kuat tekan dan modulus elastisitas menjadi menurun.
The Role of Additional Ceramic Waste on Expansive Clay Stability Agus Tugas Sudjianto; Aji Suraji
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 5, No 1 (2022): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v5i1.3580

Abstract

One of the construction problems is often due to poor technical properties of the soil, unstable soil, and poor soil bearing capacity is one of the causes of high shrinkage expansion. The purpose of this study was the use of ceramic waste as a stabilizing agent for expansive clay. Expansive clay samples were taken in undisturbed and disturbed conditions. Variations in addition of ceramic waste to clay are 0%, 5%, 10%, 15% and 20%. Physical properties were tested (moisture content, specific gravity, atterbeg and proctor limits) mechanical properties (free swelling). The results showed that the ceramic handicraft industry waste as a soil stabilizing agent showed that the results of the physical properties decreased in water content and specific gravity was quite consistent. In addition, the stress value increases after mixing ceramic waste are related to mechanical properties, and the longer the incubation day, the higher the swelling volume and the highest swelling volume in a mixture of 5% ceramic waste.
Pengaruh Ketersediaan Alat Medis dan Kompetensi Tenaga Kesehatan terhadap Kualitas Pelayanan Kesehatan dengan Peran Mediasi Manajemen Mutu Rumah Sakit Elyza Nurulita Syari; Adya Hermawati; M. N. Lisan Sediawan; Muryati Muryati; Aji Suraji
Jurnal Riset Akuntansi Vol. 4 No. 1 (2026): Jurnal Riset Akuntansi
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jura-itb.v4i1.4465

Abstract

Healthcare service quality is an important indicator of hospital performance and is influenced by the availability of medical equipment, healthcare worker competency, and effective hospital quality management. This study aimed to analyze the effects of medical equipment availability and healthcare worker competency on healthcare service quality, with hospital quality management as a mediating variable, among inpatients at a Type C hospital in Bulungan Regency, North Kalimantan. This research employed a quantitative explanatory approach with a causal associative design. Data were collected from hospitalized patients using structured questionnaires and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM). The results indicated that medical equipment availability, healthcare worker competency, and hospital quality management had significant positive effects on healthcare service quality. In addition, medical equipment availability and healthcare worker competency significantly influenced hospital quality management, which also served as a significant mediating variable in improving healthcare service quality. These findings suggest that enhancing healthcare service quality requires an integrated strategy involving adequate medical equipment, competent healthcare professionals, and a well-implemented hospital quality management system. Strengthening these aspects is expected to improve service performance and patient satisfaction, particularly in Type C hospitals.
Consumer Trust Mediates Live Streaming Optimization and Product Specialization in Increasing Marketplace Purchase Interest Abdul Salam; Nasharuddin Mas; Survival; Aji Suraji; Rahayu Puji Suci
Journal of Education and Teaching Learning Vol.4 No.1 July (2026)
Publisher : PT MEDIA JURNAL DAN PENDIDIKAN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59211/mjpjetl.v4i1.309

Abstract

This study addressed the empirical gap regarding the mechanisms underlying consumer purchase decisions within the direct digital commerce framework, focusing on Erlimakids consumers on Shopee and TikTok Shop. The primary objective was to investigate the structural path of live streaming perceptions and product specialization in driving purchase intentions, while concurrently examining the specific role of marketplace consumer trust as an operational mediator. Utilizing an explanatory quantitative approach based on the Stimulus-Organism-Response model, primary data from 161 validated respondents were statistically analyzed via Structural Equation Modeling Partial Least Squares (SEM-PLS). The structural model evaluation demonstrated that both live streaming quality and strategic product specialization substantially reinforced consumer trust, which subsequently exerted a critical directive influence on purchase intention. Furthermore, product specialization emerged as the most dominant direct determinant of purchase preferences. The mediation analysis verified that consumer trust in the marketplace operated as a substantive partial mediator, indicating a dual-track cognitive mechanism where purchase intention was simultaneously shaped by trust-based psychological evaluations and direct attribute assessment. Consequently, integrating specialized product positioning with interactive digital communication effectively maximized transactional conversions.  
Co-Authors A Halim Abdul Salam Adya Hermawati Agus Tugas Sudjianto Elyza Nurulita Syari Julianus Bayu Setiawan M Cakrawala Mohamad Ansor Muryati Muryati Nasharuddin Mas Osvaldo trindade Rahayu Puji Suci S.Pd. M Kes I Ketut Sudiana . Sediawan, MN Lisan Survival