Hybrid RSM-fuzzy modeling for hardness prediction of TiAlN coatings

In this paper, a new approach in predicting the hardness of Titanium Aluminum Nitrite (TiAlN) coatings using hybrid RSM-fuzzy model is implemented. TiAlN coatings are usually used in high-speed machining due to its excellent surface hardness and wear resistance. The TiAlN coatings were produced using Physical Vapor Deposition (PVD) magnetron sputtering process. A statistical design of experiment called Response Surface Methodology (RSM) was used in collecting optimized data. The fuzzy rules were constructed using actual experimental data. Meanwhile, the hardness values were generated using the RSM hardness model. Triangular shape of membership functions were used for inputs as well as output. The substrate sputtering power, bias voltage and temperature were selected as the input parameters and the coating hardness as an output of the process. The results of hybrid RSM-fuzzy model were compared against the experimental result and fuzzy single model based on the percentage error, mean square error (MSE), co-efficient determination (R2) and model accuracy. The result indicated that the hybrid RSM-fuzzy model obtained the better result compared to the fuzzy single model. The hybrid model with seven triangular membership functions gave an excellent result with respective average percentage error, MSE, R2 and model accuracy were 11.5%, 1.09, 0.989 and 88.49%. The good performance of the hybrid model showed that the RSM hardness model could be embedded in fuzzy rule-based model to assist in generating more fuzzy rules in order to obtain better prediction result

Performance analysis of ultrathin junctionless double gate vertical MOSFETs

The main challenge in MOSFET minituarization is to form an ultra-shallow source/drain (S/D) junction with high doping concentration gradient, which requires an intricate S/D and channel engineering. Junctionless MOSFET configuration is an alternative solution for this issue as the junction and doping gradients is totally eliminated. A process simulation has been developed to investigate the impact of junctionless configuration on the double-gate vertical MOSFET. The result proves that the performance of junctionless double-gate vertical MOSFETs (JLDGVM) are superior to the conventional junctioned double-gate vertical MOSFETs (JDGVM). The results reveal that the drain current (ID) of the n-JLVDGM and p-JLVDGM could be tremendously enhanced by 57% and 60% respectively as the junctionless configuration was applied to the double-gate vertical MOSFET. In addition, junctionless devices also exhibit larger ION/IOFF ratio and smaller subthreshold slope compared to the junction devices, implying that the junctionless devices have better power consumption and faster switching capability

Utilization of Palm Oil Mill Residue as Sustainable Pavement Materials: A Review

The advances in industrial technology have led to a major rise in the amount and forms of residue, especially during the processing of agricultural products. With the paradigm shift towards renewable energy and sustainability, there is much emphasis on biomass energy around the world which generates an immense volume of residues yearly. These residues are burgeoning issues because they are not effectively managed and utilized. Hence, one solution is utilizing them in the pavement industry. This article focuses on palm oil mill residues that are abundantly available and discarded in Malaysia. This study evaluates published works of literature relating to the utilization of these residues like the Palm Oil Fiber (POF), Palm Oil Fuel Ash (POFA), and Palm Oil Clinker (POC) and Palm Kernel Shell (PKS) in the pavement industry. The outcome of the review acknowledges the greater sustainability potential of these residues with affirmative and satisfactory performance via the result of numerous research work. Also, with a reduction in CO2-emission, low radioactivity, and heavy metal leaching level. Therefore, the review suggests more exploration and utilization of the residue in the pavement industry since it promotes safety and harness sustainability

Current-Voltage Analysis of Nanoscale Planar and Vertical MOSFT Incorporating Dielectric Pocket

Characterization of nanoscale planar and vertical metal-oxide-semiconductor field effect transistor incorporating dielectric pocket (DP-MOSFET) is demonstrated by using numerical simulation. Vertical MOSFET is one solution to shrink the channel length (L g ) into nanometer regime. The comparison between planar and vertical MOSFET was done to show an advantages of dielectric pocket and each performances in current-voltage analysis. Dielectric pocket is incorporated between the channel and source/drain for suppression of short-channel effects (SCE) and bulk punchthrough. The current-voltage analysis for both structure shows rational value of threshold voltage (V T ), drive current (I ON ), off-state leakage current (I OFF ), subthreshold swing (S) and Drain Induced Barrier Lowering (DIBL). A better control of VT roll-off was also demonstrated by incorporation of DP and better for vertical MOSFET compared to planar MOSFET. Thus, the incorporation of DP will enhance the electrical performance and give a very good control of the SCE for scaling the MOSFET in nanometer regime for future development of nanoelectronics produc

Utilization of palm oil mill residue as sustainable pavement materials: A review

The advances in industrial technology have led to a major rise in the amount and forms of residue, especially during the processing of agricultural products. With the paradigm shift towards renewable energy and sustainability, there is much emphasis on biomass energy around the world which generates an immense volume of residues yearly. These residues are burgeoning issues because they are not effectively managed and utilized. Hence, one solution is utilizing them in the pavement industry. This article focuses on palm oil mill residues that are abundantly available and discarded in Malaysia. This study evaluates published works of literature relating to the utilization of these residues like the Palm Oil Fiber (POF), Palm Oil Fuel Ash (POFA), and Palm Oil Clinker (POC) and Palm Kernel Shell (PKS) in the pavement industry. The outcome of the review acknowledges the greater sustainability potential of these residues with affirmative and satisfactory performance via the result of numerous research work. Also, with a reduction in CO2-emission, low radioactivity, and heavy metal leaching level. Therefore, the review suggests more exploration and utilization of the residue in the pavement industry since it promotes safety and harness sustainability

Android Based Animals And Plants Name Dictionary Application With Sequential Searching Method

Smartphone telah menjadi bagian dari kehidupan sehari-hari masyarakat, Dalam hal ini penulis membuat aplikasi Kamus Nama Ilmiah atau bahasa latin hewan dan tumbuhan berbasis android adalah suatu ide dan gagasan pengembangan aplikasi mobile yang memungkinkan penggunanya dapat mencari kata dengan mudah dan cepat. Aplikasi ini memungkinkan pengguna dengan cepat mencari arti dari bahasa latin hewan maupun tumbuhan. Proses yang terjadi pada aplikasi ini meliputi pencarian kesamaan kata dengan menggunakan metode pencarian Sequential Searching. Input-an berupa nama hewan atau tumbuhan merupakan nilai string yang akan dijadikan parameter pencarian didalam database. Hasil pengujian Kamus pencarian menggunakan metode Sequential Searching berhasil dengan kecepatan kurang dari satu detik waktu pencarian. Dalam pengujian ini, digunakan kata terdepan dalam database sehingga pencarian kata lebih cepat. Kecepatan proses pencarian menggunakan metode Sequential Searching bergantung kata yang dicari dalam indeks pencarian

EFFICACY OF THREE MANGROVE PLANTS AGAINST 5-LIPOXYGENASE, ACETYLCHOLINESTERASE ENZYMES AND FIVE PATHOGENIC BACTERIAL STRAINS

Mangroves are highly productive ecosystem with various important economic and environmental functions. They are the key elements in marine environment that produce diverse metabolites to adapt with the requirement of their challenging ecosystem. This make them an interesting source for natural bioactive molecules. In this study, we investigated inhibitory effects of extracts from Avicenna lanata, Ceriops tagal and Sonneratia alba against 5-lipoxygenase, acetylcholinesterase enzymes and four pathogenic bacterial strains using in vitro models. Best dual inhibitory effects against the two enzymes was recorded for the methanolic and ethylacetate bark extracts (final concentration used in the assay was 90 μg/ml) of Sonneratia alba and dichlro-root extarct of C.tagal (inhibition percentage ranging between 74-91%). Roots of Ceriops tagal showed the highest activity against lipoxygenase (93%), but was slightly weaker against AchE (83%). Antimicrobial properties of the extracts was determined using the microdilution assay. A. lananta (bark) showed the best antimicrobial efects with the lowest minimum inhibitory concentration (MIC) value of 90 μg/ml against S.aureus, E.coli and K. pneumoniae. Methanolic root and leaf extracts of C.tagal showed the same MIC values against S.aureus. Phytochemical analysis indicated the presence of alkaloids, steroids and tannins in the investigated plant parts. These results support the ethnobotanical uses of these plants. Chemical profiling, isolation and determination of mechanism of actions of the observed bioactivities are currently in progress in our laboratory.&nbsp

Design 4-to-1 multiplexer using universal gate with standard process technology

Nowadays, CMOS is widely being used in integrated circuit design. In this project, the original 4-to-1 multiplexer schematic is redesign by changing the gate inside the multiplexer with CMOS universal gate. NAND gate will be used as the universal gate in this project. Through this project, SILVACO EDA tools are used to design the integrated circuit, schematic and layout. The schematic of NAND gate and 4-to-1 multiplexer is analyzed in order to meet the specification based on datasheet of NAND gate and 4-to-1 multiplexer. The result of the analyses can be used to determine the size of the transistors. The size of transistors can be used to design the layout of NAND and 4-to-1 multiplexer. At the end of the project, a new design of 4-to-1 multiplexer using universal gate will be produced and it meets the specification required in the datasheet of 4-to-1 multiplexer. Moreover, the equivalent layout of 4-to-1 multiplexer will also be produced

Metode Point To Point Tunneling Protocol untuk Keamanan Jaringan Studi Kasus Kantor Walikota Administrasi Jakarta Barat

-Kemajuan dan perkembangan Ilmu Pengetahuan dan Teknologi saat ini sangatlah pesat, tentunya Sistem Keamanan Jaringan pun semakin berkembang seiring dengan kedua hal tersebut. Perusahaan – Perusahaan sudah melakukan komputerisasi, sehingga setiap bagiannya menggunakan komputer dalam setiap operasionalnya, semakin maju dan berkembang Perusahaan tersebut akan membuka cabang baru dalam operasionalnya baik di luar kota, negeri, ataupun benua untuk meningkatkan kualitas dan kuantitas produksi Perusahaan. Dalam bidang administrasi pemerintah penting dalam manajemen pembagian jaringan, dan pertukaran data agar cepat, mudah, dan tepat dalam pengerjaannya, dan tidak mudah diakses pihak luar suku dinas kepemerintahan. Sistem keamanan jaringan yang baik, sangat diperlukan dalam pertukaran data dari kantor pusat ke kantor cabang sehingga dapat dilakukan secara aman dan terjamin dari pihak luar. Ada berbagai macam software aplikasi yang bisa digunakan dalam hal keamanan pada suatu jaringan, akan tetapi tidak semua software terjaga keamanan datanya dalam proses pertukaran data. Oleh karena itu dengan metode point to point tunneling protocol pada VPN sangatlah cocok jika digunakan dalam pertukaran data antar Perusahaan karena metode ini menggunakan jalur private dengan ip public dalam pertukaran datanya, sehingga keamanan dalam hal kebocoran data sangat terjamin dari pihak luar yang tidak bertanggung jawab