Evaluasi Area Kawasan Keselamatan Operasi Penerbangan (KKOP) Akibat Perubahan Panjang Runway (Studi Kasus : Bandar Udara Internasional Sultan Syarif Kasim II Pekanbaru)

The objective of the study was to evaluate and to calculate the required the existing 2016 and ultimate 2035 KKOP of Sultan Syarif Kasim II International Airport Pekanbaru. The KKOP area was drawn using ArcGIS Software package, the calculation was carried by using ICAO Manual Standard Annex 14 2013, Ministry Decree Number 60 2004 and Number 3 2016. It is identified that Approach and Take Off Surface in 2016 = 155 meters AES and in 2035 = 152 meters AES, the elevation for inner horizontal surface in 2016 = 50 meters AES and in 2035 = 47 meters AES , the discreapancy for both approach surface elevation of 1,97% to 6,38% for inner horizontal surface. It is also identified that runway length in 2016 = 2.600 meters will be extended to 3.000 meters in 2035, than area of inner horizontal in 2016 = 34.783.800 m2 became in 2035 = 50.300.000 m2, it's not necessary the change of runway length from 2016 to 2035 affected to unincreased in KKOP elevation usualless KKOP distance length

Study the Changes of Thyroid Hormones Levels Following Major Urological Surgery

This study was designed to evaluate the effect of major surgery on thyroid hormones and thyrotropin in patient undergoing major lower abdominal surgery. The study included fifty patients scheduled for elective major lower abdominal surgery, the serum levels of T3, T4 and TSH were determined one day preoperatively, intraoperative, one day postoperatively, two days postoperatively, and rT3 was determined one day preoperatively, and one day postoperatively. We observed that the levels of (T3, T4, TSH) increased significantly (P0.05). rT3 increased not significant (P>0.05) in one day postoperatively. It has been proposed these changes due to surgical stress that inhibits peripheral conversion of T4 to T3 by inhibiting peripheral 5'-deiodinase activity, also The absence of pituitary response to changes in serum levels of T3 and T4.According to the results of this study there is a transient abnormality in thyroid function tests in patient undergoing elective major surgery and this abnormality due to surgical stress

Kualitas Semen Dan Produksi Semen Beku Pada Bangsa Sapi Dan Bulan Penampungan Yang Berbeda

The purpose of this research was to determine semen quality and frozen semen production of beef cattle at different month collection in Lembang Artificial Insemination Center. Beef cattle strain that used for this research are Aceh, Angus, Brahman, Limousine, Madura, Ongole and Simmental. The research parameter included semen volume, pH, motility of spermatozoa, concentration of spermatozoa, number of spermatozoa, number of spermatozoa motil and number of frozen semen straw. The method of this research using factorial completely Randomized Design and each had 3 replication per treatment. The different of beef cattle have given a significant effect of semen volume (P<0.01), mortility of spermatozoa (P<0.01), concentration of spermatozoa (P<0.01), number of spermatozoa (P<0.01), number of spermatozoa motil (P<0.01) and pH (P>0.05). Different month collection have a significant influence of semen volume (P<0.01), pH (P<0.05), motility of spermatozoa (P<0.01), concentration of spermatozoa (P<0.01), number of spermatozoa (P<0.01), number of spermatozoa motil (P<0.01). Interaction between breed of beef cattle and different month of collection have given a significant influence of semen volume (P<0.01), motility spermatozoa (P<0.01), concentration spermatozoa (P<0.05) and number of spermatozoa motil (P<0.01)

Penampilan Reproduksi Sapi Peranakan Ongole (PO) Dan Sapi Peranakan Limousin Di Kecamatan Sawoo Kabupaten Ponorogo Dan Kecamatan Tugu Kabupaten Trenggalek

The purpose of this study was to evaluate artificial insemination program on the reproduction performance of Ongole crossbred and Limousin crossbred cattle. The materials of the study were Ongole crossbred and Limousin crossbred cattle. Descriptive analysis was used to determine service per conception (S/C), days open (DO), calving interval (CI), conception rate (CR) and calving rate (CvR). Meanwhile, t-test was used to analyse differences among those variables. The study showed that the value of S/C, DO and CI between Ongole crossbred and Limousin crossbreed cattle differed significantly (P<0.05). The average S/C, DO, CI of Ongole crossbred cattle were 1.3±0.32; 156.9±29.33 days; 430±43.72 days respectively. In addition, Ongole crossbred cattle had calving rate (CvR) as well as conception rate (CR) was 74%. Meanwhile Limousin crossbed cattle had 1.5±0.39 of S/C; 172.9±19.21 days of DO; 451.3±19.61 days of CI. Moreover, calving rate (CvR) and conception rate (CR) of Limousin crossbed cattle was 52%. The study concluded that reproduction performances of Ongole crossbred cattle were better than that of Limousin crossbred cattle

Chemical Recycling of Used PET by Glycolysis Using Niobia-Based Catalysts

Plastic production has steadily increased worldwide at a staggering pace. The polymer industry is, unfortunately, C-intensive, and accumulation of plastics in the environment has become a major issue. Plastic waste valorization into fresh monomers for production of virgin plastics can reduce both the consumption of fossil feedstocks and the environmental pollution, making the plastic economy more sustainable. Recently, the chemical recycling of plastics has been studied as an innovative solution to achieve a fully sustainable cycle. In this way, plastics are depolymerized to their monomers or/and oligomers appropriate for repolymerization, closing the loop. In this work, PET was depolymerized to its bis(2-hydroxyethyl) terephthalate (BHET) monomer via glycolysis, using ethylene glycol (EG) in the presence of niobia-based catalysts. Using a sulfated niobia catalyst treated at 573 K, we obtained 100% conversion of PET and 85% yield toward BHET at 195 °C in 220 min. This approach allows recycling of the PET at reasonable conditions using an inexpensive and nontoxic material as a catalyst

Mangrove Leaves Craft: Pemanfaatansampah Daun Kering Mangrove sebagai Kerajinan Masyarakat Pesisir Pantai Timur Wonorejo Surabaya

Most of people who live in coastal areas work as fisher who depend on their embankment, have started unproductive. Wonorejo Urban Village is an area in Surabaya East Coastal region which has the concept of ecotourism mangrove forest. Problems arise when the existence of people who manage this mangrove forest system misunderstood about the concept of ecotourism. Mangrove Leaves Craft programs answer the problems that exist in the Wonorejo Village, that educate the creativity of those community utilize mangrove leaves waste into economically valuable craft and thus become one of the ecological alternative livelihoods onWonorejo Village in Surabaya

MONITORING COASTAL AREAS USING NDWI FROM LANDSAT IMAGE DATA FROM 1985 BASED ON CLOUD COMPUTATION GOOGLE EARTH ENGINE AND APPS

The coastal area is an area that has a dense population with a lot of human activities that occur there. Due to environmental changes and human activities, changes often occur in coastal areas ranging from erosion and sedimentation. Changes must continuously be monitored to plan countermeasures due to the occurring phenomena. This study aims to create a website-based application to monitor coastal areas. This study will use Landsat data 5,7,8, and 9 to see changes in coastal areas. The analysis can be provided from 1985 until recent data by integrating four Landsat satellites. The NDWI index (Normalized Difference Wetness Index) analyzes changes occurring in coastal areas and differentiates between water and land area. The analysis is not only in the form of changes that occur in coastal areas but also in time series analysis, and trends that occur at a point can be analyzed using land trend analysis. The resulting website based on Cloud Computation in Google Earth Engine can be seen at the link https://bit.ly/MonitoringPesisir. This website can automatically update, and users can choose the location to monitor. This research is expected to be used by policymakers to monitor and plan the development and regulation of coastal areas

COMPARISON OF POTENTIAL ENERGY OF SOLAR RADIATION IN ROOFTOP MODELING USING DIFFERENT BUILDING LEVELS OF DETAIL

The potential for future energy crises is a problem the world is currently facing. Many countries are switching from fossil to renewable energy to prevent an energy crisis. One of the most developed renewable energy today is solar energy. Easy installation makes solar energy installation not only on a large scale but also on a home scale. Urban areas will be very suitable for building solar photovoltaic (PV) roofs due to minimal open areas. In installing rooftop solar PV, sound planning is needed to predict the energy potential that can be provided by solar energy on the rooftop of a building. Spatial modeling can be done to determine the energy potential and suitable location for rooftop solar PV installation. In building rooftop solar PV modeling, the level of detail of the building will affect the results of the model. The rooftop's shape and the building's height will affect the amount of solar radiation going into the building. However, the higher the level of detail of the building, the higher the cost and processing time will be. This study will review the differences in modeling the potential of rooftop solar PV using different levels of detail. This research will integrate solar radiation data from remote sensing to determine the energy potential of solar radiation and digital surface model data from photogrammetry to create a level of detail for buildings. Integration of solar radiation data and the level of detail of the building will use hillshade analysis. Hillshade analysis can review the shadow effect on the rooftop of a building which will be directly related to the potential of solar energy on the rooftop of the building. This study determines the energy potential on the rooftop of the building with different levels of detail, namely 0, 1, and actual shape, to determine the difference in energy potential in the three scenarios. Hopefully, this research will determine the best level of detail for modeling rooftop solar PV. The best model that can show high accuracy value but at a lower price. Hopefully, this research can also assist policymakers and the public in planning for rooftop solar PV installations to develop renewable energy