Self-driving cars have gained significant attention in recent years. Real-time object detection is a critical component of their perception system. One the main challenges developing safe and efficient self-driving lies accurately real-time detecting objects diverse complex traffic environments. This paper presents performance evaluation YOLOv8 models, state-of-the-art deep learning framework for mixed The objective to assess extent YOLOv8's capabilities can be used car within real-world...

A wet cooling tower is an apparatus for transferring heat and mass that directly links hot water air movement. Because the provides a large surface area transfer, fill essential to tower. This study uses experiments investigate performance of multi-level inclined perforated splash in forced (WTC). The packing has 2.6%, 3%, 3.6% perforation ratio inclination angle 15 degrees, with five layers galvanized plate fill. temperature adjusted 60 degrees Celsius. airflow rate varies times: 0.02033,...

A map that shows the necessary condition for avoiding generation of low-frequency stick–slip a creep groan is introduced. The obtained as result comprehensive investigation employing novel caliper–slider experimental model. According to map, controlled by two dimensionless parameters, designated stiffness ratio, Sr, and index, Ls. Stiffness ratio structure at contact interface Ls an index formed various parameters such normal force, sliding velocity, difference between static kinetic...

The demand for bio-degradable lubricants is continuously increasing due to environmental concerns. One of the methods achieve bio-degradability property by using nanoparticles from bio-resources as additives in oils. Among nanomaterials are nanofibers, cellulose, and graphene nanoplatelets. They can be mixed Polyolester (POE) oil produce tribological applications. In a previous study, it has been confirmed that friction wear tribo-pair reduced 5 10% mixing various volume percentages...

In this work, a novel anti-corrosion water-based lubricant is prepared.Carboxymethyl cellulose and Uncaria Gambir Extract, all in powder form, were dispersed water.Corrosion, stability, tribology test with pin-on-disk reciprocating tribometer studied.The newly obtained lubricants designated as (UG), i. e. UG0 (0% volume extract Carboxymethyl cellulose, UG1 (1% UG2 (2% cellulose). The addition of Extract into solution delivered good low corrosion rate, stable friction coefficient. has the...

This research is aimed at studying the stability and tribology properties of polyol ester oil- (POE-) based biolubricant mixed with various filler loadings from microparticle TEMPO-oxidized bacterial cellulose (NDCt) as an additive sorbitan monostearate (Span 60) a surfactant. Morphology, rheology, tests were conducted. The addition NDCt Span 60 to pure POE base fluid showed elevated viscosity, lower value coefficient friction (COF), remarkable decrease in wear rate (WR). presence 0.6 wt%...

Abstract This research focusses on the effect of vegetable oils, i.e. crude palm oil (CPO) and coconut (CO), used as cutting fluid wear carbide tool insert in a face milling process. The performances tool, term surface roughness workpiece, were investigated compared to those resulting from similar process but using conventional fluid, which is commercial soluble emulsion (SOE). results show that at spindle speed 360 rpm feed rate 80 mm/min, was smaller case CO than CPO 0.16 mm 2 0.40 ,...

ABSTRAK. Penggunaan wafer ransum komplit mengandung limbah kopi pada itik peking dilakukan dengan tujuan untuk mengetahui berat akhir dan persentase karkas. Materi penelitian yang digunakan adalah umur 1 hari (DOD) sebanyak 96 ekor dibagi dalam 4 perlakuan 3 ulangan. Ransum satu bulan pertama komersil, terakhir kopi. diberikan adalah: P0 = Wafer 0% (kontrol), P1 2,5% kopi, P2 5% P3 7,5% Parameter diamati: bobot hidup, karkas, potongan Penelitian ini menggunakan Rancangan Acak Lengkap. Data...

An experimental method for estimating the tangential contact stiffness of interface with controlled asperities is discussed. The analyzed from shift certain eigenmode frequency system resulting changes in density and application normal force. results show that case combination 189 asperities, corresponding shifted 1.01 kHz at force 19 N to 1.64 148 N. This corresponds increase 34.08 MN/m 67.44 It found its were affected by as well In 397 2.36 49 3.9 153 N, indicating 93.91 140.73 MN/m. A...

The smart home's functional requirements should include the capability to differentiate between various user categories, such as gender and voice recognition. data-driven Internet of Things (IoT) can present challenges for elderly people with disabilities, but recognition technology could offer an effective solution. In addition, developing accurate prediction model is still challenging due large time variation randomness. Therefore, we propose classification detection models based on...

Normal 0 false IN X-NONE MicrosoftInternetExplorer4 Private sectors have invested in the technology to grow some Gelidialian red algae families and also tried convert pulp paper over last few years order replace raw materials from wood. Several modern systems with their all complexities which are similar wood pulp-based papermaking been offered overcome any recent issues settle converting process. Chemical bleaching agents even still a standard treatment that must be established for properly...

ABSTRAK. Penelitian ini bertujuan untuk mengevaluasi tingkat kepadatan kandang yang berbeda terhadap performan dan persentase karkas. Materi penelitian digunakan adalah ayam ras petelur jantan strain Isa Brown dari PT Charoen Pokphand Jaya Farm, Medan, sebanyak 208 ekor berumur 1 hari (DOC). dilakukan secara eksperimental menggunakan Rancangan Acak Lengkap (RAL), terdiri atas 4 perlakuan masing-masing diulang kali. Perlakuannya antara lain K1: 10 ekor/m2, K2: 12 K3: 14 K4: 16 ekor/m2. Data...

Abstract The organic matter is an important component of sustainable agricultural systems and as one the indicators soil quality. This research aims to estimate content distribution carbon (SOC) quality index in several orders dryland areas Aceh Besar Indonesia. SOC was analyzed using Walkley-Black method while (SQI) evaluated by Mausbach Seybold (1998). results demonstrated that contents District vary from low very high (0.23-3.95%) depending on types. C surface, such Entisols, Inceptisols,...

A novel experiment device was employed to investigate the tensile strength and fracture mechanism of single abaca fibers. Twenty specimens untreated fibers with a gauge length 30 mm were subjected force loading rate 0.46 N/s. Results show that fiber ranges from 417 MPa 1548 MPa. The calculated using measured value cross-sectional area each fiber, evaluated by three-dimensional microscopic observation. observation conducted for all reveals classified into three types, i.e. shear, tension,...

Effect of coffee waste as component compiler ration peking duck in the form wafer complete rationABSTRACT. Coffee is a by-product processing that potential to be used feed stuff for duck. The weakness this waste, among others, perishable, voluminous (bulky) and availability was fluctuated so technology needed make vegetable durable, easy stored given livestock. To solve problem could formed wafer. This research conducted study effectiveness experiment run completely randomized design which...

Abstract A simple experimental model for a fundamental investigation of creep groan generating mechanism is introduced. It calliper slider that developed based on the operating principle real brake system and has ability to generate quantitatively comparable those recorded system. The advantage it possible take into account many parameters, such as surface roughness mating materials, properties materials structure's stiffness, so their effects phenomenon can be analysed. usefulness potential...

Coolant is one of the factors that affects quality workpiece. The selection coolant useful to lower surface roughness In addition, should be easily degradable in environment so not polluted. Example coconut oil an can degraded environment. This research aimed observe influence for cooling obtained during face milling process. experimental tests, conventional machine was used and tests were performed under various machining parameters, namely spindle rotational speed 360 490 rpm, feeding 60...

Tingkat Parisipasi Agkatan Kerja (TPAK) dan pendidikan merupakan diantara faktor Sumber Daya Manusia yang berkontribusi dalam pembentukan Produk Domestik Regional Bruto (PDRB) dapat mendorong pertumbuhan ekonomi suatu daerah. Tujuan dari penelitan ini yaitu untuk mengetahui bagaimana pengaruh Partisipasi Angkatan Pendidikan dilihat Rata-rata Lama Sekolah (RLS) terhadap Pertumbuhan Ekonomi di Provinsi Aceh. Data digunakan penlitian mengunakan data time series periode 2005-2019, dengan...

The demand for smart home technology is increasing to help older people feel more comfortable at home. Smart can support the elderly in independent daily activities. Internet of Things (IoT) currently one key platforms data-driven homes. automated process recognizing or verifying an individual's identification based on his speech known as voice recognition speaker recognition. main challenge adjusting evolution conversations society that systems generally refer existing patterns database....

In this paper, the viscoelastic material was used to investigate effect of roughness on stiction. The is chosen because it highly deformable so that contact during friction can be fully elastic. soft surfaces were prepared by casting silicon metal having smooth and unidirectional grooved texture. Two tests conducted, indentation friction, find out parameters normal stiffness, force difference between static kinetic coefficient, μs-μk. As results, found all are related surface roughness....

ABSTRAK. Penelitian ini bertujuan untuk menganalisa secara finansial tentang biaya produksi dan tingkat keuntungan usaha peternakan ayam ras petelur jantan pada kepadatan kandang yang berbeda. Materi penelitian digunakan adalah strain Isa Brown, berjumlah 208 ekor umur 1 hari (DOC). dilakukan eksperimental menggunakan Rancangan Acak Lengkap, terdiri atas 4 perlakuan ulangan. Perlakuan antara lain K1: 10 ekor/m2, K2: 12 K3: 14 K4: 16 ekor/m2. Variabel diamati: produksi, penerimaan usaha,...