Analisis Regresi Semiparametrik Pada Kasus Hilangnya Respon

In the specific cases of experiment, not all data (response) may be available, which is called missing response cases. It's appear for various reasons. For the existing problem, inference statistics cannot be applied directly. The aim of this research is to consider about certain method to impute the missing response which is related to semiparametric regression, as a goodness of fit measurement of the used method, suppose an estimator which is compared to the mean of complete response, then consider asymptotic distribution, consistency and efficiency of parametrics component estimator. By using Kernel approximation, the resulted of nonparametrics estimator and by least square method, the resulted parametric component .The application to minimum temperature's data in 56 cities at USA, estimator value of for several confidence interval tend to be similar to the mean value of complete response

Studi Bioekologi Nyamuk Mansonia Spp Vektor Filariasis di Kabupaten Tanjung Jabung Timur, Provinsi Jambi

Lymphatic filariasis is still public health problem in Tanjung Jabung district, Jambi Province. Mass drug administration has been done to prevent of lymphatic filariasis transmission in this area, however new cases are still found. Bio-ecological study is needed to determine the behavior of mosquitoes which have role as lymphatic filariasis vector in related with this disease transmission. Entomological study was performed 4 times in period of June to October 2014. Total of 3,231 mosquitoes that consists of 25 spesies have been collected. As many as 2,655 (82,2%) collected mosquitoes have been identified as Mansonia spp., which consist of four spesies, i.e.: Mansonia bonneae, Ma. dives, Ma. Indiana and Ma. uniformis. The highest mosquito density was Ma. Indiana. The preference of blood feeding behavior of these mosquitoes were outdoor (exophagic), with peak biting density was occurred at 08.00 to 09.00 pm

Analisis Pengelompokan Mengenai Perubahan Struktur Kependudukan Dalam Menghadapi Era Bonus Demografi Di Kabupaten/Kota Provinsi Jawa Timur

Pembangunan perlu didasarkan pada realita kependudukan secara berkelanjutan. Bonus demografi terjadi karena jumlah penduduk usia produktif (15-64 tahun) di suatu wilayah jauh lebih besar jika dibandingkan dengan penduduk usia nonproduktif (0-14 tahun dan 65 tahun keatas). Struktur penduduk di Provinsi Jawa Timur didominasi oleh penduduk usia produktif pada periode 2010-2020. Tujuan penelitian ini membandingkan tiga kondisi yang berbeda untuk mengetahui Perubahan struktur kependudukan periode 2010, 2014 dan 2020 berdasarkan proyeksi penduduk hasil SP 2010. Rasio ketergantungan terus mengalami penurunan sehingga beban tanggungan penduduk usia produktif menjadi berkurang. Variabel yang digunakan adalah kependudukan, ekonomi, kesejahteraan penduduk (pendidikan dan kesehatan) serta ketenagakerjaan. Berdasarkan hal tersebut dilakukan analisis faktor sehingga didapatkan tiga faktor utama yaitu faktor pembagunan manusia, kualitas dan kuantitas penduduk serta perekonomian sektor manufaktur. Hasil pengelompokkan dengan Ward's Method berdasarkan faktor utama pada masing-masing tahun 2010 dan 2014 serta tahun 2020 (variabel kependudukan) didapatkan 3 kelompok. Variabel kependudukan cukup penting dalam Perubahan transisi demografi, dimana kelompok 1 merupakan daerah pertanian kelompok 2 daerah perdagangan dan jasa serta kelompok 3 daerah industri. Variabel pembeda antar kelompok adalah kepadatan penduduk dan jumlah pekerja jasa di tahun 2010 dan 2014, sedangkan di tahun 2020 adalah jumlah penduduk perkotaan

Enhancement of permeability estimation by high order polynomial regression for capillary pressure curve correlation with water saturation

Suggesting a cost-effective and straightforward approach is indispensable for obtaining permeability estimates in carbonate reservoirs utilizing available well logs. In this study, several procedures were conducted to reach an optimum approach, primarily by constructing a correlation between capillary pressure and water saturation using core data plotted and utilized a good polynomial regression to obtain a better relationship, which leads to calculating the permeability. The second step is to use different theoretical models which Tixier introduces, Timur, Coats, and Dumanior, which resulted not good matching with the permeability from core analysis and modified Brown and Husseini correlation which used and gave better matching than others correlations by comparing the results with the calculated permeability depending on core data. The proposed approach in this study based on modified Husseini equation using the well logs data by applying Statistical regression techniques within capillary pressure prediction to enhance reservoir characterization can potentially advantage reservoir simulation efforts. Obtained results of permeability prediction based on capillary pressure correlation was examined for a certain well and compared with the measured permeability value of cores. There was a good matching between the predicted and measured permeability

The Distribution and Zonation of Barnacles Around Intertidal Shores of Penang Island

The intertidal shores around Penang Island were surveyed for the distribution of barnacles from 14th November 2011 to 31st January 2012. The sampling was done by using 20 cm x 20 cm transect to count the barnacles. Three replicates were taken for each zonation available of the intertidal areas; i.e. upper, middle, and lower zonations, at every sampling site. From the result, three species were identified, including Euraphia withersi and Chthamalus malayensis from Family Chthamalidae, and Balanus amphitrite amphitrite from Family Balanidae. Chthamalus malayensis was found to be most abundant among the three species with 44.24% of total population; and Tg. Tokong recorded the highest abundance of this species (28.22%). This was followed by Euraphia withersi with 38.77%; which was found to be densely populated at Gelugor (21.92%). Balanus amphitrite amphitritewas least abundant with only 16.99% and mostly found at Gurney Drive (26.24%).The distribution of the three species of barnacles also varied among the sampling locations. Gertak Sanggul recorded the highest relative abundance of all three species of barnacles at 18.01%; while the location with the least relative abundance of barnacles is Queensbay with 0.33%.Based on ‘Non-Supervised Artificial Neural Network' (ANN), distinct zonation was observed where Chthamalus malayensis was more dominant on the upper zonation; Euraphia withersi on the middle zonation; and Balanus amphitrite amphitrite on the lower zonation. The interaction betweenbarnacles with other barnacles leads to competitive exclusion and niche partitioning which created zonations among the species. Interspecies interaction that brought by predation also played a part in the distribution of barnacles. Apart from that, the distribution was affected by the sampling sites and humanactivities; such as embankment, land reclamation, and residential development

Exterior noise due to interaction of tyre-thermoplastic transverse rumble strips

Transverse rumble strips (TRS) are a common choice to reduce vehicle speed and increase driver alertness on roadways. However, there is a potential trade-off using them on rural roadway due to the noise problem created when vehicles go over the strips. The present study investigated the noise level, spectral analysis, and the possible noise generation mechanism when the TRS is hit by a vehicle. Tenraised- rumbler (RR) and three-layer-overlapped (TLO) TRS were selected in this study as they have received complaints from the public. Results showed that RR generated a relatively higher noise and impulse at a low speed, and increased sound level in each octave band. Based on these results, RR may irritate human ears even when the vehicle travels at a low speed. It was found that RR increased all noise generation mechanisms of tyre-pavement interaction whilst TLO increased structural resonance, sidewall and surface texture vibration

Anomalous elastic and optical behaviours of mixed electronic-ionic of xAg2O-(35-x)[0.5MoO3-0.5V2O5]-65TeO2 conductor glasses

Ag2O addition to quaternary xAg2O-(35-x)[0.5MoO3-0.5V2O5]-65TeO2 (x = 0-25 mol%) glasses resulted in nonlinear behaviours with maxima at x = 10 mol% for ultrasonic velocities, independent elastic moduli and transition glass temperature (Tg). These results coincided with the electronic-to-ionic transition region as previously reported. A large decrease in elastic moduli beyond x ≤ 10 mol% indicated a decrease in stiffness, thereby enabling ionic conductivity. Although Ag2O addition weakened the glass network, the presence of MoO3 played an important role as an additional glass former at x = 10 mol% apart from V2O5. Analysis of bulk compression and ring deformation models showed a large decrease in the ratio of theoretical to experimental bulk moduli (Kbc/Ke) at x ≤ 10 mol% followed by near constancy with increased Ag2O content. These results showed that ring deformation was reduced in the electronic region, but limited ring deformation took place in the ionic region, and that the main compression mechanism was mainly isotropic ring compression. Meanwhile, the optical energy gap (Eopt) and refractive index (n) showed a slope change at x = 10 mol% which confirmed the effect of mixed electronicionic conductivity on optical properties. © 2016, National Institute R and D of Materials Physics

Threat assessment algorithm for Active Blind Spot Assist system using short range radar sensor

Road safety has become more concern due to the number of accidents that keeps increasing every year. The safety systems include from simple installation such as seat belt, airbag, and rear camera to more complicated and intelligent systems such as braking assist, lane change assist, steering control and blind spot monitoring. This paper proposes another intelligent safety system to be implemented in passenger vehicle by monitoring the blind-spot region by using automotive short range radar as sensor to assess its surrounding. This system is called Active Blind-Spot Assist (ABSA) system and this system will collaborate with a Steering Intervention system for autonomous steering maneuvers. The objective of ABSA system is to deploy safety interventions by giving warning to the driver whenever other vehicle is detected within the blind-spot region. Furthermore, this active system also triggers autonomous steering control when the potential of collision with the detected vehicle increases greatly. Consequently, a threat assessment algorithm is developed to evaluate the right moment to give safety interventions to the driver and the conditions for autonomous steering maneuvers. The process of developing the threat assessment algorithm explained in this paper