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"Penelitian ini membahas mengenai pemetaan temperature pada material S45C dan SNCM 447 dengan menggunakan material pahat tungsten dan Co TiN, disamping itu juga menggunakan material SNCM 447 yang dikeraskan dengan menggunakan material pahat keramlk, Pengarnbilan data temperaturel suhu dilakukan pada laju pemakanan dan kecepatan putar material yang berbeda. Data yang didapat adalah !abel yang diperoleh berdasarkan dari basil pengujian serta penelitian yang dilakukan, Dari hasll tersebut diolah, dianalisa dan dilakukan perbandingan serta pendekatan berdasarkan teori ) yang diperoleh, sehingga menghasilkan suatu kesimpulan dari hasil penelitian yang penulis lakukan. Kesimpulan yang didapat dari percobaan adalah bahwa semakin tinggi Laju pemakanatl dan putaran material kerja maka akan semakin tinggi pula suhu/temperatur yang dihasilkan oleh material kerja maupun material potong. Pada kenaikan kecepatan putar material kelja perbedaan suhu/temperalur yang teljadi terlihat lebih signifikan dibandingkan dengan perubahan suhu akibat kenaikan laju pernakanan. Pada proses hard turning material kerja haruslah memiliki kekerasan yang tinggi seperti baja paduan. baja bearing, baja putaran tinggi, baja ) yang dikeraskan dan lainnya. Karena pada proses hard turning membutuhkan putaran material kerja yang tinggi yaitu diatas 1000 rpm dan basil yang diperoleh dari proses ini terdapat suatu lapisan yang disebut lapisan putih (white layer) yang hanya bisa diteliti dengan tes metalografi."

"A ship usually performs maneuvers under the influence of external forces and moments, such as wind, waves, and current. Therefore, it is important to understand the maneuvering behavior of ships under the action of external forces. This paper discusses the turning maneuvers of an Indonesian roro ferry under the combined influence of constant wind and regular waves using the mathematical modelling group (MMG). The ship’s position relative to the wave trough is added to the original MMG model to estimate the exciting forces and moment induced by the waves. The results of a numerical simulation show that the effect of wave height on turning ability is more significant for a small wavelength; this effect decreases as the wavelength increases. The effect of wavelength on the sway force and yaw moment is more significant compared with its effect on the surge force. The ship’s initial position relative to the wave trough does not have a significant effect on the turning characteristic and it can be neglected for the present study’s subject ship. Overall, the results of the present work compare well with published data."

"Lathing process is a process of formation of components and equipment such as solid shaft, hollow shaft, a threaded shaft, and other forms of action cutting.The aim of this study was to analyze the differences between the cutting time cutting time theory and practice in the process of turning. Techniques used in analyzing data is a time difference of cutting (cutting time) the results of experiments using statistical methods. Data processing using the distribution of student "t" by taking a significance level a = 0.05 (1-t) = 95%. From experimental cuts to the depth of cut thin (taken 1 mm), that the result of calculation of cutting time 69.4 seconds. While the practice of cutting time (trial) was 71 125 seconds, or difference 2:39%. For a depth of cut thick (taken 4 mm), the cutting time result of calculation of 42.6 seconds and the cutting time is 43.45 seconds or practice the difference is 1.96%. The result of the calculation of the distribution of student "t" in the amount of 26.87 seconds and 23.78 is much larger than t (0.95) of 1.71. Thus the hypothesis which states that the practice of cutting time longer than the cutting time can theoretically be accepted as true."

"Film dengan genre animasi memiliki daya tarik tersendiri. Film animasi dapat merepresentasikan unsur kebudayaan suatu bangsa dengan grafis yang beragam dan menarik. Salah satu film yang merepresentasikan budaya Cina antara lain adalah Film Turning Red '青春变形记' (Qīngchūn biànxíng jì) (2020). Representasi budaya Cina dalam film Turning Red menampilkan unsur-unsur ajaran Konfusianisme dalam hubungan keluarga. Konfusianisme merupakan salah satu unsur kebudayaan Cina yang berisi falsafah hidup bagi etnis Cina baik yang tinggal di daratan Cina, maupun di luar daratan Cina. Dalam Konfusianisme terdapat konsep harmonisasi sebagai unsur bijak manusia antara lain Ren 仁 (kemanusiaan), Yi 義 (kebajikan/keadilan), Li 礼 (etika), Zhi 知 (pengetahuan), Xin 信 (integritas), Zhong 忠 (kesetiaan), 孝 (Xiào) (bakti kepada orang tua). Penelitian ini bermaksud untuk mengetahui bagaimana representasi Xiao pada film animasi berjudul Turning Red melalui penokohan Meilin Lee, Ming Lee, dan Wu. Melalui metode kualitatif, penelitian ini akan mengungkapkan bagaimana bentuk representasi konsep Xiao yang ditunjukan pada film Turning Red melalui adegan tokoh-tokoh pada film. Melalui pendekatan deskriptif, penelitian ini menemukan bahwa konsep Xiao merupakan faktor penting dalam membangun alur dan penokohan dalam film ini.

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Films with the animation genre have their own charm. Animated films can represent elements of a nation's culture with diverse and attractive graphics. One of the films that represents Chinese culture is Turning Red '青春变形记' (Qīngchūn biànxíng jì) (2020).The representation of Chinese culture in the film Turning Red displays elements of Confucianism in family relationships. Confucianism is one of the elements of Chinese culture which contains a philosophy of life for ethnic Chinese both living in mainland China and outside mainland China. In Confucianism there is the concept of harmonization as a wise human element, including Ren 仁 (humanity), Yi 義 (virtue/justice), Li 礼 (ethics), Zhi 知 (knowledge), Xin 信 (integrity), Zhong 忠 (loyalty), 孝 (Xiào) (filial piety). This study intends to find out how Xiao is represented in the animated film Turning Red through the characterizations of Meilin Lee, Ming Lee, and Wu. Through qualitative methods, this study will reveal how the form of representation of Xiao's concept is shown in the film Turning Red through the scenes of the characters in the film. Through a descriptive approach, this research finds that Xiao's concept is an important factor in developing the plot and characterizations in this film."

"A quadrature voltage-controlled oscillator (QVCO) with a wide tuning range is proposed and implemented in the TSMC 0.18-um CMOS process. The said QVCO uses a cross-coupled structure and a current-reuse technology to produce the quadrature signal and to save power consumption and area, respectively. Based on our measurement, the phase noise with 1-MHz offset from the carrier frequency of 3.6 GHz is -114 dBc/Hz and the proposed QVCO has a wide-band tuning range of 3.6-4.9 GHz. Also, the maximal phase error and power imbalance are less than 5' and 1.5 dB, respectively, and the power consumption is 8 mW at 2-V power supply voltage. "

"Surface roughness plays an important role in product quality. In this study effects of cutting speedworkpiece hardness, feed rate and depth of cut on surface roughness in the finish hard turning of DF-3hardened steel were experimentally investigated Cubic boron nitrite inserts and ceramics with through -hardened DF-3 steel bars were used Four factor-two level fractional experiments were conducted andstatistical analysis of variance was performed During hard turning experiments, roughness of themachined surface was measured. This study shows that the effects of workpiece hardness, depth of cut,feed rate and cutting speed on surface roughness are statistically significant. The ejects of two factorinteractions of the cutting speed and the workpiece hardness, the cutting speed and the feed rate, and thecutting speed and depth of cut are also appeared to be important. Especially, CBN suitable for high ortow cutting speed because on the 55.4 to 59.6 HRC hardness range resulted in better surface roughness."

"Penelitan ini membahas tentang heterogenitas pada material beton dan dampaknya terhadap sifat mekanisnya yang sering diabaikan dalam melakukan pemodelan beton. Penelitian ini berfokus pada efek dari variabilitas dan dimensi, khususnya dalam damage model dan retak pada beton. Pemodelan ini menggunakan software FE dan mengaplikasikan Mazars Damage Model. Untuk menghasilkan variabilitas kerusakan pada beton, digunakan generator random field yang disebut Turning Band Method (TBM). Beberapa sampel kubus beton polos berukuran 15 x 15 x 15 cm³, 20 x 20 x 20 cm³, dan beton bertulang dengan sampel pull-out 20 x 20 x 20 cm³ dimodelkan dengan uji tarik dengan memvariasikan ukuran mesh dan panjang korelasi untuk mengamati pola kerusakannya. Hasil pada sampel kubus beton polos menunjukkan bahwa ukuran mesh yang lebih kecil yaitu 1 cm menyebabkan distribusi retakan yang lebih bervariasi dibandingkan dengan ukuran mesh 2.5 cm. Selain itu, panjang korelasi yang lebih kecil menghasilkan penyebaran microcracks di semua sisi sampel beton, sedangkan panjang korelasi yang lebih besar retak terlokalisasi di bagian-bagian tertentu. Hasil pada beton bertulang dengan sampel pullout menunjukkan bahwa Random Field-Turning Band Method tidak berpengaruh secara signifikan untuk memprediksi pola retak dan kerusakan pada beton.

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This study addresses the heterogeneity of concrete material and its impact on mechanical properties, which is often overlooked in concrete modeling. It focuses on the effects of variability and dimension, particularly in damage and concrete cracking modeling. This research applies concrete variability in a FE using Mazars Damage Model to govern the behavior law. To capture the variability of concrete damage, a random field generator called the Turning Band Method is used. Some plain concrete cube sample of 15 x 15 x 15 cm³, 20 x 20 x 20 cm³, and reinforced concrete of pull-out sample of 20 x 20 x 20 cm³ are modelled under tension test, varying the mesh size and length correlation to observe the damage response. The results in plain concrete cube samples show that a smaller mesh size of 1 cm leads to a more varied distribution of cracks compared to a mesh size of 2.5 cm. Moreover, a smaller correlation length causes the spread of microcracks on all sides of the concrete sample, whereas a larger correlation length localizes in certain areas. The results in reinforced concrete of pull-out sample show that the TBM has no significant effect to predict crack and damage response."

"Penelitian ini menguji dampak kebijakan desentralisasi terhadap tingkat kemiskinan di Indonesia  menggunakan analisa data panel dengan mengambil sampel data dari 33 propinsi dari periode 2005 - 2012.  Menggunakan estimasi model non – linear, dampak desentralisasi dapat dijelaskan melalui titik balik minimum dimana fiscal desentralisasi mempunyai dampak negatif maksimal terhadap tingkat kemiskinan. Penelitian ini menemukan bahwa dampak desentralisasi fiskal paling optimal ketika indeks desentralisasi sama dengan 34 persen. Dengan kata lain, dampak desentralasi fiskal terhadap pengurangan tingkat kemiskinan paling optimal terjadi ketika rasio akumulasi pengeluaran pemerintah daerah per kapita  disatu propinsi adalah sepertiga dari dari total pengeluaran pemerintahan per kapita di proprinsi tersebut

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This study examines the effect of fiscal decentralization on poverty headcount rate in Indonesia by employing panel data analysis, which takes sample data form 33 provinces in Indonesia in the period 2005 – 2012. Using the non-linear estimation model, the effect of decentralization on poverty is captured from its turning point relation, which has maximum impact on decreasing poverty rate. This study finds that optimum effect of fiscal decentralization on poverty reduction occurs when the index of decentralization is equal to 34 percent. In other words, the highest impact of decentralization on poverty reduction is when the ratio of local government expenditure per capita is one third of the total government expenditure per capita."

"Kota Jakarta Selatan mengalami kenaikan suhu setiap tahunya dan terjadi fenomena UHI. Keberadaan ruang terbuka hijau (RTH) publik merupakah salah satu upaya dalam mitigasi UHI. Akan tetapi, ketersediaan RTH di Kota Jakarta Selatan masih terbatas dan belum memenuhi standar. Intesitas pendinginan RTH disebut greenspace cool island intensity (GCII). Penelitian ini bertujuan untuk menganalisis karakteristik RTH publik dan disitribusi spasial GCII serta menganalisis hubungan karakteristik RTH publik dengan GCII. Karakteristik RTH dalam penelitian ini yaitu luas, landscapa shape index (LSI) dan leaf area index (LAI). Metode untuk memperoleh nilai GCII yaitu turning point. GCII diperoleh dengan menggunakan citra Landsat 8 OLI/TIRS tahun 2023. Hasil penelitian menunjukkan bahwa karakteristik RTH publik di Kota Jakarta Selatan didominasi oleh tipe RTH publik dengan luas yang kecil, bentuk tidak beraturan, dan jenis vegetasi rumput dengan pohon. Nilai GCII memiliki rentang nilai mulai dari 0,51^oC-2,79^oC dan rata-rata 1,43^oC. RTH publik di Kota Jakarta selatan memberikan efek pendinginan dengan radius 90 hingga 420 meter dan rata-rata 187 meter. Luas, LAI, dan tutupan vegetasi di area sekitar RTH publik memiliki hubungan yang signifikan dan berkorelasi positif terhadap GCII. Sedangkan tutupan lahan terbangun disekitarnya memiliki hubungan yang signifikan dan berkorelasi negatif. LSI tidak memiliki korelasi dengan GCII.

 

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South Jakarta City experiences an increase in temperature every year, and the UHI phenomenon occurs. The existence of public green open space (RTH) is one of the efforts to mitigate UHI. However, the availability of green spaces in South Jakarta City is still limited and has not met standards. The cooling intensity of RTH is called greenspace cool island intensity (GCII). This study aims to analyze the characteristics of public green spaces, the spatial distribution of GCII, and the relationship between public green space characteristics and GCII. The characteristics of public green space in this study are area, landscape shape index (LSI), and leaf area index (LAI). The method to obtain the GCII value is the turning point. GCII was obtained using a Landsat 8 OLI/TIRS image in 2023. The results showed that the characteristics of public green spaces in South Jakarta City are dominated by types of public green spaces with small areas, irregular shapes, and vegetation types of grass with trees. The GCII value has a range of values ranging from 0.51 ^oC to 2.79 ^oC and an average of 1.43 ^oC. Public green spaces in southern Jakarta City provide a cooling effect with a radius of 90 to 420 meters and an average of 187 meters. Area, LAI, and vegetation cover around public green spaces have a significant and positively correlated relationship to GCII. While the surrounding built-up land cover has a significant and negatively correlated relationship. LSI has no correlation with GCII.

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"Sebagai karakter yang mengakibatkan variabilitas properti mekanis, sifat heterogenitas beton perlu dipertimbangkan karena mempengaruhi perilaku material. Salah satu metode untuk memperhitungkan sifat tersebut adalah random field yang digenerasi dengan Turning Band Method (TBM) pada aplikasi berbasis finite element, Cast3M. Objek pemodelan pada penelitian ini adalah beton polos berukuran 15 x 15 x 15 cm3, beton polos 10 x 10 x 50 cm3, dan beton dengan tulangan tunggal 10 x 10 x 50 cm3. Studi numerik dilakukan dengan mengaplikasikan beban tekan pada setiap sampel kubus dan beban tarik pada sampel balok. Model kerusakan Mazars diimplementasikan untuk mempelajari perilaku keruntuhan pada masing-masing sampel terhadap variasi parameter ukuran mesh dan panjang korelasi. Hasil pemodelan menunjukkan bahwa penggunaan TBM sangat berpengaruh pada pola keruntuhan dari setiap sampel. Parameter ukuran mesh dan panjang korelasi memiliki pengaruh yang signifikan terhadap propagasi dan sensitivitas kerusakan serta estimasi properti mekanis. Pemodelan dengan ukuran mesh 1 cm dan 2,5 cm terhadap masing-masing panjang korelasi menghasilkan pola keruntuhan yang bervariasi. Perbandingan hasil pemodelan beton polos 15 x 15 x 15 cm3 yang diuji tekan dengan studi eksperimental menunjukkan bahwa pola keruntuhan dengan mesh 1 cm mendekati kerusakan pada sampel pengujian. Sedangkan, perbandingan hasil pemodelan beton tulangan tunggal 10 x 10 x 50 cm3 dengan sampel pengujian di laboratorium menunjukkan bahwa penggunaan panjang korelasi 1 cm dan 3 cm memiliki pola kerusakan yang memiliki kemiripan masing-masing terhadap sampel ER1 dan ER2.

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As a character that results in the variability of mechanical properties, the heterogeneity of concrete needs to be considered because it affects the behavior of the material. One of the methods to take into account these properties is a random field that is generated by the Turning Band Method (TBM) on a finite element based application, Cast3M. The modeling objects in this study were plain concrete with dimension of 15 x 15 x 15 cm3, plain concrete 10 x 10 x 50 cm3, and concrete with single reinforcement 10 x 10 x 50 cm3. Numerical studies were carried out by applying compressive loads to the cube sample and tensile loads to the beam samples. The Mazars damage model is implemented to study the damage behavior of each sample with varying parameters of mesh dimension and correlation length. The modeling results show that the use of TBM greatly influences the failure pattern of each sample. Parameters of mesh size and correlation length have a significant effect on the propagation and damage sensitivity as well as the estimation of mechanical properties. Modelling with 1 cm and 2.5 cm size of mesh for each correlation length produces a variety of damage patterns. Comparison of modelling results of plain concrete 15 x 15 x 15 cm3 tested in compression with experimental studies reveals that the pattern of failure with a mesh of 1 cm is close to the damage in the laboratory test sample. Meanwhile, a comparison of the results of the 10 x 10 x 50 cm3 single-reinforced concrete modelling with samples tested in the laboratory indicates that the use of a correlation length of 1 cm and 3 cm has a pattern of damage that has similarities to the ER1 and ER2 samples, respectively."