bluuebunny/crossref_metadata_2025 huggingface dataset:
Penerapan Konsep Arsitektur Ekologi Dalam Desain Taman Reptil Di Kota Makassar
Authors: Burhanuddin Muh. Luthfi , Amin Burhanuddin , Attar Muhammad
Published: February 2023

Reptil merupakan salah satu kelas pada hewan vertebrata yang keberadaannya di alam mulai terancam karena potensinya sebagai komoditi perdagangan binatang-binatang reptil, sebagai hewan peliharaan dan banyaknya perburuan liar binatang reptil untuk kepentingan sandang dan pengobatan. Binatang reptil yang telah dikonsumsi oleh manusia untuk beberapa kepentingan sehingga jumlahnya menjadi terancam. Perburuan buaya yang diambil kulitnya untuk bahan baku industri tas, sepatu atau beberapa industri lainnya. Tujuan dari penelitian yaitu merancang taman reptil yang nyaman bagi pengolola dan pengunjung serta bagaimana mendesain lingkungan buatan yang identik dengan lingkungan alami reptil. Metode Deskriptif dan eksplorasi desain dengan pendekatan ekologi. Diharapkan adanya taman reptil ini adalah sebagai tempat hiburan yang bersifat edukatif dan konservatif dengan fasilitas dan taman sehingga tujuan memberikan hiburan tetap dapat terpenuhi.
The changing role of local government in Australia : National survey findings
Authors: Chou Mark
Published: February 2023

[Extract] The aim of this report is to analyse public perceptions on the changing role of local government in Australia. Exploring how the Australian public views and understands the expansion of local government activity, from the Three Rs to a more expansive if still limited tier of government, offers crucial insights about the sector’s current state and future direction. This report presents the findings from a new national survey of 1,350 respondents who were asked what they saw the role local government to be, what services the sector should deliver, and whether acting on controversial issues to do with national identity, refugee support, and climate change, for example, should be within local government’s remit.
Beneficial effects of prehospital use of statins in a large United States cohort of hospitalized coronavirus disease 2019 patients
Authors: Crimi Ettore , Rumana Umme , Ang Darwin N. , Cintron Cristobal , Kapisoda Katarina , Zeleznak William , Huazhi Liu , Galdiero Massimiliano , Napoli Claudio
Published: February 2023

Aims

This large cohort study aimed to assess the role of chronic statin use on COVID-19 disease severity.

Methods

An observational retrospective study from electronic medical records of hospitalized patients (n = 43 950) with COVID-19 between January and September 2020 in 185 hospitals in the United States. A total of 38 875 patients met inclusion criteria; 23 066 were included in the propensity-matched sampling with replacement cohort; 11 533 were prehospital statin users. The primary outcome was all-cause death; secondary outcomes were death from COVID-19 and serious complications. Mean, standard deviation, chi-square test, Student'st-test, linear regression, and binary and multinomial logistic regressions were used for statistical analysis.

Results

Among 38 875 patients, 30% were chronic statin users [mean age, 70.82 (±12.25); 47.1% women] and 70% were statin nonusers [mean age, 58.44 (±18.27); 48.5% women]. Key propensity-matched outcomes among 11 533 chronic statin users showed 20% lower risk of all-cause mortality (OR 0.80, 95% CI 0.74–0.86,P < 0.001), 23% lower risk of mortality from COVID-19 (OR 0.77, 95% CI 0.71–0.84,P < 0.001), 16% lower risk of ICU admission (OR 0.84, 95% CI 0.79–0.89,P < 0.001), 24% lower risk of critical acute respiratory distress syndrome with COVID-19 (OR 0.76, 95% CI 0.70–0.83,P < 0.001), 23% lower risk of mechanical ventilation (OR 0.77, 95% CI 0.71–0.82,P < 0.001), 20% lower risk of severe sepsis with septic shock (OR 0.80, 95% CI 0.67–0.93,P = 0.004), shorter hospital length of stay [9.87 (±8.94),P < 0.001] and brief duration of mechanical ventilation [8.90 (±8.94),P < 0.001].

Conclusion

Chronic use of statins is associated with reduced mortality and improved clinical outcomes in patients hospitalized for COVID-19.
Correlation between preoperative calcium and parathormone levels with parathyroid gland volume
Authors: Rezkallah Emad , Elsaify Andrew , Hanna Ragai , Elsaify Wael
Published: February 2023

Objective. Hyperparathyroidism is a prevalent disease with parathyroid adenomas being the most common cause. Surgical excision remains the standard treatment for parathyroid adenoma. Successful preoperative localization of the parathyroid adenoma could facilitate the decision regarding the extent of surgical exploration. The aim of the current study was to assess the correlation between the preoperative values of parathyroid hormone and ionized calcium with the adenoma weight and volume in patient with primary hyperparathyroidism caused by single-gland adenoma.

Patients and Methods. We did this retrospective review for all patients who were diagnosed with primary hyperparathyroidism due to a solitary parathyroid adenoma in our general surgery department over 4 years. SPSS software was used to get the correlation coefficient between the peak preoperative levels of calcium and parathyroid hormone with the parathyroid adenoma weight and volume.

Results. Ninety-nine patients were included into the study. The average age at surgery was 62.65±12.00 years. The correlation coefficient between the adenoma volume and weight with the preoperative ionized calcium level was weakly positive (r=0.329, p<0.01) and (r=0.281, p=0.019), respectively, while the correlation with the preoperative parathyroid hormone level was stronger (r=0.708, p<0.01) and (r=0.650, p<0.01), respectively.

Conclusions. The strong positive relationship between the preoperative parathyroid hormone and calcium levels with the parathyroid adenoma size and weight can help the surgeon to predict the volume of the involved gland and avoid an unnecessary dissection.
Accuracy of Critical Care Ultrasonography Plus Arterial Blood Gas Analysis Based Algorithm in Diagnosing Aetiology of Acute Respiratory Failure
Authors: Panda Rajesh , Saigal Saurabh , Joshi Rajnish , Pakhare Abhijit , Joshi Ankur , Sharma Jai Prakash , Tandon Sahil
Published: February 2023

Introduction

Lung ultrasound when used in isolation, usually misses out metabolic causes of dyspnoea and differentiating acute exacerbation of COPD from pneumonia and pulmonary embolism is difficult, hence we thought of combining critical care ultrasonography (CCUS) with arterial blood gas analysis (ABG).

Aim of the study

The objective of this study was to estimate accuracy of Critical Care Ultrasonography (CCUS) plus Arterial blood gas (ABG) based algorithm in diagnosing aetiology of dyspnoea. Accuracy of traditional Chest X-ray (CxR) based algorithm was also validated in the following setting.

Methods

It was a facility based comparative study, where 174 dyspneic patients were subjected to CCUS plus ABG and CxR based algorithms on admission to ICU. The patients were classified into one of five pathophysiological diagnosis 1) Alveolar( Lung-pneumonia)disorder ; 2) Alveolar (Cardiac-pulmonary edema) disorder; 3) Ventilation with Alveolar defect (COPD) disorder ;4) Perfusion disorder; and 5) Metabolic disorder. We calculated diagnostic test properties of CCUS plus ABG and CXR based algorithm in relation to composite diagnosis and correlated these algorithms for each of the defined pathophysiological diagnosis.

Results

The sensitivity of CCUS and ABG based algorithm was 0.85 (95% CI-75.03-92.03) for alveolar (lung) ; 0.94 (95% CI-85.15-98.13) for alveolar (cardiac); 0.83 (95% CI-60.78-94.16) for ventilation with alveolar defect; 0.66 (95% CI-30-90.32) for perfusion defect; 0.63 (95% CI-45.25-77.07) for metabolic disorders.Cohn’s kappa correlation coefficient of CCUS plus ABG based algorithm in relation to composite diagnosis was 0.7 for alveolar (lung), 0.85 for alveolar (cardiac), 0.78 for ventilation with alveolar defect, 0.79 for perfusion defect and 0.69 for metabolic disorders.

Conclusion

CCUS plus ABG algorithm is highly sensitive and it’s agreement with composite diagnosis is far superior. It is a first of it’s kind study, where authors have attempted combining two point of care tests and creating an algorithmic approach for timely diagnosis and intervention.
Microbial Spectrum and Antibiotic Sensitivity Pattern of Bacteria Isolated from the Spiny Lobster, Panulirus regius (De Brito Capello, 1864)
Authors: Lawal-Are Aderonke Omolara , Moruf Rasheed Olatunji , Omoyele Israel Adebowale
Published: February 2023

Microbial spectrum and antibiogram of bacteria isolated from Panulirus regius of the coast of Lagos were analysed using standard techniques. The lobster head had higher total bacteria and total coliform counts with respective significant (P < 0.05) values of 4.17 x 106 ± 1.46 CFU g−1 and 3.06 x 103 ± 1.56 CFU g−1. A higher total fungi count (2.99 x 102 ± 1.63) was recorded in the lobster tail. In the bacterial group, Bacilus megaterium had the highest frequency of occurrence (22.6%) while in the fungal group, Aspergillus niger had the highest frequency of occurrence (20.0%). All isolates were sensitive to ciprofloxacin and showed resistance to rocephin and zinnacef except Micrococcus sp. and Salmonella sp. The presence of antibiotic-resistant bacteria from the lobsters is a serious concern.
Contrast enhanced multiparametric ultrasound of cystic kidney lesions in comparison with the computed tomography
Authors: Kadyrleev R. A. , Bagnenkо S. S. , Busko E. A. , Kostromina E. V. , Goncharova A. B. , Kozubova K. V. , Menshikova S. V. , Nikolaev A. V.
Published: February 2023

Objective: to evaluate the effectiveness and capabilities of multiparametric ultrasound (mpUS) with contrast enhanced in the assessment of renal cystic lesions and compare data with the results of computed tomography (CT).Patients and Methods. The study included 61 patients with cystic kidney tumors (category Bosniak ≥ II). Cysts of categories Bosniak ≥ III were morphologically verified, the rest (categories II-IIF) were under long-term dynamic control. All patients underwent mpUS including greyscale mode, color doppler imaging (CDI) and contrastenhanced ultrasound (CEUS), as well as contrast-enhanced CT.Results. Contrast-enhanced mpUS with CEUS demonstrated high efficiency of the method: sensitivity (Se) – 97.2%; specificity (Sp) – 91.6%; accuracy (A) – 95.1%. The effectiveness of CT with contrast in the study group was 91.7%; 84.0%; 88.5% respectively. Also, mpUS showed a more accurate assessment of cystic tumors according to the Bosniak classification, in comparison with contrast-enhanced CT.Conclusions. Contrast-enhanced mpUS with CEUS demonstrated a significant increase in the effectiveness of the method as a whole, as well as higher rates in comparison with CT in the assessment of cystic formations of the kidneys. This technique should be considered as the method of choice in cases where CT is not possible, and it is recommended to include it in the algorithm for examining patients with cystic kidney tumors.
Reframing the Far North
Authors: Scholtes Esther
Published: February 2023

Evgenia Arbugaeva, Untitled 90 (From the series IV. Chukotka), 2019-2020
Exploring the Far North historically meant an immense effort, meticulous planning and the endurance of many hardships. These are characteristics that partly still hold true today. The northern parts of our planet are therefore surrounded by a narrative of distance. In this simplified notion the Far North is pictured as an isolated and unspoiled wilderness, one of the last places on Earth free of human disruption. Meanwhile, the (sub-)Arctic areas are among the first to be profoundly affected by climate change. Melting snow and ice incites a chain reaction that is known as the albedo effect, causing an accelerated rise in temperature. The Far North comprises territories whose physical state is profoundly altered at the moment; the melting of ice and permafrost has lasting effects on the physical make-up of the area, and thus these places can be marked as vulnerable and unstable landscapes.
This article explores how a theoretical focus on relationality can unearth relations between photography and the geographical concepts ‘isolation’ and ‘connection’ in order to put forward a type of caring that is more geographically dispersed. In the photographic series Borealis (2015-2020) by Dutch photographer Jeroen Toirkens and Hyperborea (2013-2019) by Russian photographer Evgenia Arbugaeva, the oppositions between ‘isolation’ and ‘connection’ are inverted. This article analyses their photographs not as flat representations of a secluded place, but as nodes in a spatial constellation in a wider sense. Eventually, the images construct a ‘landscape of care’ that moves beyond physical boundaries and underlines an ethical duty for anyone living on this planet to care for and about places that we otherwise deem disparate.
Six Stones and a Plinth
Authors: Merin Gili
Published: February 2023

Northern Spain: the Hórreo - photo by Gili Merin
 
This visual essay looks into a typology of granaries that is common in Northern Spain: the Hórreo. It describes their genealogy, structural components, and current use in the Spanish province of Asturias. The essay seeks to give attention not only to their agricultural use but also to their striking visual appearance and its integration within the Asturian Landscape. It argues, following the words of archaeologist Richard Bradley, that the Hórreos have a monumental presence; as an offspring of prehistoric temples—where food surplus was divided by the priests—they are a relic of a time when agricultural production was ritualised, and are thus a reminder of the blurred distinction between the sacred and profane.
Analisis Prediktif Pemeliharaan Minyak Transformator Menggunakan Metode Markov
Authors: Surya Subaga I.G. , Manuaba I.B.G. , Sukerayasa I.W.
Published: February 2023

As one of the main assets that play an important role in the distribution of electricity, the performance of the transformer must be maintained in prime condition. Damage to the transformer insulation oil often causes failure of the transformer. Damage to transformer oil is very difficult to predict, therefore monitoring its condition is very important to do. Dissolved Gas Analysis (DGA) is one og the method to determine the condition of transformer oil, where this method can analyze the condition of the transformer based on the concentration of gas dissolved in oil. A reguler maintenance of transformer oil can prevent the transformer oil from damage or failure of insulation. However, sometimes maintenance is carried out not in a right time that results in a decrease in transformer’s lifetime. In this analysis the value of Total Dissolved Combustible Gas (TDCG) was used to calculate transfomer’s reliability and availability value. Those value then processed using the Markov method to determine the possibilities of proper maintenance time. From the calculation results in this analysis the transformer reliability value in 30 days is 0.886, then the probability of decreasing the reliability value every month is 11.4%. And the value of the availability of the transformer is 0.803 or equal to 293 days. Based on this analysis, in one year the transformer operated properly for 293 days while 72 days the transformer was in an unfavorable condition. So that maintenance should be carried out in 293 days transformer’s condition can be maintained properly.
KONSERVASI ENERGI PADA GEDUNG KANTOR SEKRETARIAT DAERAH KOTA DENPASAR
Authors: Wikan Pradnya Dana Gde , Dyana Arjana I Gede , Indra Partha Cok Gede
Published: February 2023

Regional Secretariat Building Denpasar in 2017 experienced a separation in two parts.The separation resulted in the empty room, even though are empty room turned out toconsumption building power in 2018 continued to experience enchancement. The study hasbeen done there is the room that has the intensity of energy consumption which do not comptywith SNI. Solutions that can be given is to replace the type of split standard air conditioner (AC)into a type of low watt air conditioner (AC). Replacement type split standard air conditioner (AC)1,5 PK became type of low watt air conditioner (AC) 1,5 PK can make saving of up 11,62 % orRp 21.068.468,00. Saving electric energy consumption on lighting system can be done byinstalling an automatic switch with time or by using an a light sensor system.
ANALISIS STABILITAS MULTI MACHINE PADA ISLAND MODE SISTEM KELISTRIKAN BALI
Authors: Bayu Suarsa I Gede , Gede Manuaba Ida Bagus , Sari Hartati Rukmi
Published: February 2023

Modern electrical systems are characterized by extensive interconnection systemswith the need for electrical energy and control depending on the control system. Oneelectricity system that has been widely interconnected is the Bali electricity system. The Balisystem using island mode has four generating units that can supply electrical energy needsincluding UP Pesanggaran, UP Celukan Bawang, UP Gilimanuk and UP Pemaron. But itmust be remembered in supplying electrical energy needs are also affected by the constantchange in load, resulting in instability in the electrical system. So the need for a controlsystem that can increase the value of damper such as the Power System Stabilizer (PSS). PSScan be used to reduce frequency oscillations when interference occurs, but for PSS design itgives less good performance in different operating conditions. Problems with PSS occur dueto errors in modeling, input value input, and topology variations. Efforts are made to reduceerrors in PSS by using methods that are expected to overcome this problem, namely the fuzzylogic controller.The results of the analysis show that the system performance index usingfuzzy logic is 78.6064. Fuzzy logic has the ability to damp better and reduce errors better.
KARAKTERISTIK KINERJA TURBIN NEST-LIE PADA PROTOTIPE PEMBANGKIT LISTRIK TENAGA MIKRO HIDRO
Authors: Wira Mastika I Nyoman , Jasa Lie , Manuaba Ida Bagus Gede
Published: February 2023

Water energy is energy that comes from water flow which is used to produce electricalenergy by using a flow of water that flows to turn a turbine, then the turbine is connected to agenerator. Micro-hydro power plants are usually built in areas that have the potential for generatingelectricity in a small capacity. The choice of location of a micro hydro power plant is largelydetermined by the potential for water fall or often called a waterfall. Parameters that can be changedto improve turbine efficiency are the shape of the turbine blade, turbine blade volume, nozzle angle,and nozzle position. The method used is the method of observation by observing and testing directlyand the method of literature by studying the literature - literature from several references.Performance characteristics of nest-lie turbines produce higher torque values than triangular turbineblades. Nest-lie turbine produces a torque value of 0.0076 Nm at position 450 nozzle and nozzle angle100. This shows that the nest-lie turbine has characteristics that are better than a triangular turbineblade.
PERANCANGAN SISTEM POMPA AIR DC DENGAN PLTS 20 kWp TIANYAR TENGAH SEBAGAI SUPLAI DAYA UNTUK MEMENUHI KEBUTUHAN AIR MASYARAKAT BANJAR BUKIT LAMBUH
Authors: Bayu Kusuma Kadek , Indra Partha Cok Gede , Sukerayasa I Wayan
Published: February 2023

Karangasem Regency, especially in Kubu Subdistrict, Tianyar Tengah Village, Banjar BukitLambuh, is an area that still lacks clean water, so that villagers still rely on purchasing clean waterthrough tank trucks at high prices. Around Banjar Bukit Lambuh, there is a 20 kWp Central TianyarPLTS which has been abandoned since 2016 due to the absence of regional companies that manageand maintain the PLTS so that some components of the PLTS are damaged. The abandonment of the20 kWp PLTS makes the Bali Provincial Manpower and Energy Department (ESDM) Department planto transfer the function of PLTS as a source of electricity for water pumps that lift water fromreservoirs with a water capacity of 72,000 liters to a 30,000 liter water reservoir which is near thePLTS to meet the water needs of residents in the Middle Tianyar Village Banjar Bukit Lambuh. Theselected water pump type Lorentz PS2-4000 C-SJ3-32 submersible DC with a total head of 108.6meters and a pipe length of 1,640 meters and requires power of 2.96 kW supplied from PLTS 20 kWpTianyar Tengah with a cable length of 1,640 meters and voltage drop of 8,183 volts, so that the pumpcan operate for 7 hours with 4.2 m3 / h water discharge producing 29,400 liters of water that can meetthe water needs of residents of Banjar Bukit Lambuh Village by 23,328 liters per day.
STUDI KOORDINASI SISTEM PENGAMAN PADA TRANSFORMATOR DAYA PT. PLN (PERSERO) P3B SUB REGION BALI DI GARDU INDUK PADANG SAMBIAN
Authors: Chandra Adinata I Putu , Maharta Pamayun AA Gede , Ibi Weking Antonius
Published: February 2023

The transformer is the main equipment that is very important at the substation.However, sometimes there can be damage to the transformer used. Damage to the transformerwill be able to disrupt the distribution of electricity, so it must get the right security, determiningthe right relay setting is an attempt to protect equipment, system security and consumer needsfrom possible disruption in the distribution system. In some roles, efforts to protect the powertransformer if there is a short circuit between phase and phase to the ground, then this study willstudy the coordination of the security system of power transformers in Padang Sambian mainsubstation. The results of the calculation of overcurrent relay (OCR) on the 150KV transformerthat has been done is obtained the results of the CT primary side current setting of 254.1 A andfor the secondary side of 3.178 A. For the actual working time of the relay is 0.91 seconds, if thecurrent exceeds value of this setting there will be a trip. The results of the calculation ofovercurrent relay (OCR) on the 20KV transformer that has been done is obtained the results ofthe CT primary side current setting of 1905 A and for the secondary side is obtained for 4.76 A.For the actual working time relay result is 3.69 seconds, if the current exceeds the value of thissetting there will be a trip.
ANALISA KETERSEDIAN ALOKASI KANAL RADIO KOMUNITAS DI KOTA DENPASAR
Authors: Nurya Savitri Estry , Wiharta Dewa Made , Sukadarmika Gede
Published: February 2023

In this study aims to analyze the use of Community radio frequency (Rakom) in Denpasar and byanalyzing the number of channels allocated frequency and the amount of authorized community radioauthorization in the city of Denpasar. It is hoped that the study is expected to give an overview of howavailability community radio channels in Denpasar City area. To be able to avoid interference in theservice area on radio community broadcasts in the city of Denpasar. Conducted analysis andsimulation of mapping of new LPK Radio services (community broadcasting institutions). Themeasured parameters include the calculation of the Budget link and the measurement results obtainedin the field which is then compared with the theory. Based on the results of simulated analysismapping and calculations used, in the area of Denpasar city there can only be 2 (two) radiocommunities.
OPTIMISASI ECONOMIC DISPATCH PADA SISTEM KELISTRIKAN 150 kV BALI MENGGUNAKAN IMPERIALIST COMPETITIVE ALGORITHM
Authors: Ayrthon Senapati I G.N. , Manuaba Ida Bagus Gede , Hartati Rukmi Sari
Published: February 2023

The purpose of the Economic Dispatch is to determine the distribution of each unit inproviding the requested load, so that the load demand can be met at the lowest possible cost takinginto account the limitations of the generator and available system. Commonly the researcher usesome methods to solve economic dispatch, such as Lagrange, Genetic Algorithm (GA), and othersoptimization methods. Latest Artificial Intelligent technology had invented the solution to solve theoptimization problem especially for economic dispatch, its named Imperialist Competitive Algorithm(ICA) which in this project, ICA become the solution to solve economic dispatch problem in Bali 150kV interconnection system. The simulation result the compared by the result using Lambda Iterationand Particle Swarm Optimization (PSO) method. Simulation result show that the ICA method is ableto provide a better solution in Bali 150 kV interconnection system. The difference in generation costsbetween the Imperialist Competitive Algorithm (ICA) method and the Particle Swarm Optimization(PSO) method is 1685.19 $/h or savings are made at 0.24%. While the difference in generation costsbetween the Imperialist Competitive Algorithm (ICA) method with the Lambda Iteration method is7116.45 $/h or savings are made at 1.03%.
ANALISIS EFESIENSI TRAFO DAYA TERHADAP PENGOPERASIAN BEBERAPA JENIS HARMONIC FILTER
Authors: Maharta Pemayun A.A Gede , Budiastra I Nym , Rinas I W
Published: February 2023

Nonlinear load is one of the causes of harmonics in utility systems. To reduce harmonicdistortion that appears, usually in utility systems, Harmonic Filters are operated such as:passive filters, active filters, series hybrid filters and hybrid shunt filters. Harmonic distortion thatoccurs will increase losses in the utility system. Losses that appear will affect the efficiency ofthe Power transformer being operated. From the analysis results, the order of the best to worstfilter efficiency is hybride filter (? = 97.26%), active filter (? = 96.72%) and passive filter (? =95.73%).
RANCANG BANGUN SISTEM MONITORING KETINGGIAN AIR BERBASIS ANDROID MENGGUNAKAN TRANSISTOR WATER LEVEL SENSOR
Authors: Arun Wiratama Nyoman , Wiharta Dewa Made , Ary Esta Dewi Wirastuti Ni Made
Published: February 2023

So far, controlling the water level in the dam is still done manually by utilizing humanoperators, where in this case there are often mistakes in making decisions. In this research, asolution is offered in the form of an Android-based Water Level Monitoring System Design usinga Water Level Sensor Transistor. There are 4 transistor water level sensors integrated withArduino, ESP8266 module, camera module, relay, automatic water faucet, and LCD. Eachsensor is used to determine the water level with 5 different states, namely Zero, Safe, Warning,Alert, and Danger. If the water level touches one of the sensors, the input given by the sensor willautomatically be processed by Arduino which will then trigger a relay to open / close the waterfaucet and the value and status of the water level will be displayed on the LCD. After that thecamera will take pictures of the water level then the ESP8266 module which functions to connectto an internet connection will help the tool to send water level data in the form of images, status,and water level values to the Android application and the Telegram application that have beeninstalled on the Smartphone. The results obtained from this study are the design of the waterlevel monitoring system can run well in accordance with expectations, but there are stilldeficiencies that can be overcome with several developments so that the design of the tool getsbetter results, for example by using a servo motor on the floodgate which later can make the toolwork system even better.
PERANCANGAN PENEMPATAN RECLOSER YANG OPTIMUM MENGGUNAKAN METODE QUANTUM GENETIC ALGORITHM DI PENYULANG PALAPA
Authors: Wiyoga Putra I Gede , Dyana Arjana I Gede , Setiawan Widyadi
Published: February 2023

The need for electricity in Bali is increasing along with the growth of technology and developmentin Bali, so the quality of electricity distribution to customers must also be improved. This study took anexample from the 2018 case, Palapa Feeder used 2 reclosers which had an index value that did not meetthe standard of the reliability index value. When the Palapa Feeder only used LBS, SAIFI value was2.1055 and SAIDI was 7.2960, when the LBS was changed to recloser the SAIFI value was 1.203 andSAIDI was 4.091. When a recloser was added again the SAIFI value became 1.016 and SAIDI became3.4088. The use of 2 reclosers on a feeder is less effective, because if they are placed at a close distance,then there will be two devices work simultaneously when there is a disturbance so that the area which isnot affected by the disturbance will also experience a power outage. Therefore it is necessary to design arecloser placement point in order to obtain lower reliability index value in order to meet the PLN standard(SPLN) No. 68-2: 1986, World Class Company standards, World Class Service standards, and alsoobtained the optimum recloser location and more efficient.The design of recloser placement is carried out using the Quantum Genetic Algorithm method,which is an evolutionary algorithm based on the concept of quantum bits (qubits). The purpose of thismethod is to minimize the SAIDI and SAIFI value in order to obtain lower reliability index and meet thestandards in order to obtain an optimum recloser location. The results of the recloser placement designusing the QGA method show that the local optimum recloser location is in section 2 at point 56 with thehighest fitness value is 4.9715 and a SAIDI value is 1.8951 decreased by 44.4% and SAIFI value is 0.9978decreased by 1, 78%, and it is proven that the recloser placement design using the QGA method hassucceeded in obtaining local optimum with better SAIDI SAIFI index results and has met the PLN (SPLN)standard No. 68-2: 1986 with SAIDI 3,33 and SAIFI 1,2 and also meets World Class Company and WorldClass Service standards with SAIFI 3 (times/customer/year) and SAIDI 1,66 (hours/customer/year).
SISTEM PESAWAT TANPA AWAK MENGGUNAKAN KAMERA THERMAL UNTUK MEMBANTU PENCARIAN KORBAN BENCANA ALAM
Authors: Feryanda Frasiska I Gede , Budiastra, MKes., MT Ir. I Nyoman , Rahardjo, S.T.,M.T. Pratolo
Published: February 2023

In Indonesia, the weather is influenced by seasons, namely the dry season and the rainyseason. Apart from weather, natural disasters can also occur due to the earth's tectonicpatterns, either in the form of tsunamis or earthquakes. Every natural disaster will have adetrimental impact on society both economically and socially. The impact of a disaster like anearthquake is the collapse of buildings. Collapsed buildings due to earthquakes can leave largenumbers of people dead or buried in the rubble. The evacuation process of post-disaster victimsmust be carried out immediately to reduce the risks posed by the disaster, such as the numberof casualties caused by delays in the evacuation process. Based on these problems,researchers are motivated to create a technological innovation that can help the SAR team iinthe processs of detecting victims from debris through the air by detecting the victims bodytemperature, the number of victims and showing the coordinates of the victim's position.disaster victims. The tool is called DROPBA, which is an Unmanned Aircraft System or UAVthat uses thermal cameras to help search for victims of natural disasters. The SAR team at thepost will control DROPBA or Unmanned Aircraft to detect disaster victims who are in the wreck,and inform the SAR team information wirelessly in the form of a path to the position of thedisaster victim. The design results are in the form of a 3-dimensional model image from the                                                                                                              DROBA tool and the components and camera systems used are a thermal camera connectedto the Raspberi pi system and image processing using Open CV.
PEMANFAATAN UDARA BUANG EXHAUST FAN SEBAGAI PEMBANGKIT LISTRIK TENAGA BAYU DENGAN PENAMBAHAN WIND TUNNEL BERBASIS ATMEGA 2560
Authors: Satria Tresnajaya Made , Indra Partha Cok Gede , Sukerayasa I Wayan
Published: February 2023

Energy needs from year to year has increased along with the increase of population,economic growth, and high energy consumption. Until now, the world still depends on fossilfuels, this causes the depletion of oil availability and also causes air pollution. As a developingcountry, many industries are running around us and also many new industries are growingevery day. Every industry generally has an exhaust fan to maintain the temperature of the workspace. This exhaust fan works to remove air from the inside out. This research uses exhaustfan exhaust by using a 2-blade turbine and the addition of a wind tunnel, which will latercompare the output between using a wind tunnel and without using a wind tunnel. In theresearch the use of exhaust fan exhaust air without using a wind tunnel to get an output of0,30625W while with the addition of wind tunnel output increased by 8,25% to 0,76176W.
PENGUKURAN KUALITAS LAYANAN JARINGAN KABEL SERAT OPTIK LINK BENCULUK-JIMBARAN
Authors: Ratih Devyanti Putu , Sukadarmika Gede , Oka Saputra Komang
Published: February 2023

Optical fiber is a telecommunication transmission medium that has a high bandwidthand bit rate so that it can meet the needs of today's information services with high reliability andefficiency. Optical fiber applications are increasingly widespread for underwater networks,terrestrial networks, metropolitan and regional network coverage, also small-scale networksincluded. Optical fiber communication system has internal and external factors that affect thequality of network performance. Those factors possibly able to reduce the performance of theoptical fiber networks. Then, can cause attenuation and other transmission losses. In an effortto prevent sudden and significant deterioration in the quality of a network, it is necessary tocarry out periodic maintenance activities such as measuring the quality of scheduled fiber opticcable network services. These maintenance activities can help determine the decision toincrease network capacity at a later date. The service quality parameters that often measuredare the attenuation of the transmission and the received signal power (power receive). Thisstudy examines the measurement of attenuation of the Benculuk-Jimbaran fiber optic cableusing OTDR EXFO FTB-150. The measurement results of 8 idle cores were analyzed usingOptisystem 7.0 and the calculation of total attenuation and receive sensitivity. Themeasurement results of core 1 to core 12 have total attenuation ranging from 29, 942 dB -30.654 dB at a distance of 169, 646 km - 170, 323 km. The value of power received on cores 1to 12 has a value ranging from -17,339 dBm - 18,204 dBm, where all idle cores fulfill the receivesensitivity requirements set by ITU-T, which is greater than -28 dBm. Based on the performance                                                                                                                 analysis according to total attenuation and power receive parameters, the Benculuk-Jimbaranfiber optic link network has good performance quality.
ANALISIS DAN DESAIN SISTEM PEMBUMIAN GARDU DISTRIBUSI PADA LAHAN SEMPIT DI TANAH BERBATU
Authors: Premei Artha I W. A. , Janardana I G.N. , Arta Wijaya I W.
Published: February 2023

A disturbance in the groundhing system is caused by a disturbance current which isflowed to the ground which will cause a difference in tension on the ground surface dueto high ground resistance. On rocky soils with ground resistance in excess of 200 ?-meters it is very difficult to determine a suitable grounding system. The purpose of thisresearch is to analyze the design of an appropriate earthing system on narrow land onrocky ground which will be used as a reference for selecting the grounding system at atKampus Unud Jimbaran feeders. The method used is to take measurements on rockysoil then measure and determine the proper earthing design to use. The optimal resultsobtained for the grounding system on narrow land on rocky soil is a grid groundingsystem because it produces the lowest earthing resistance value in dry soil conditionsand wet soil conditions, namely 0.6269 ohms on dry soil and 0.4314 ohms on wet soil.                                                                                                                                has met the standard according to IEEE std 80-2013, which is <1 ohm with 16x16 rodsin an area of 4 m2.
PENENTUAN KONDISI TRANSFORMATOR BERDASARKAN KANDUNGAN GAS TERLARUT MENGGUNAKAN METODE SEGITIGA DUVAL
Authors: Sismantara I M.T. , Ariastina W.G. , Amrita A.A.N.
Published: February 2023

Transformer failure may interrupt the electrical power delivery and causing a very highcost to the utility. In order to prevent failure in the transformer, continuous condition monitoringof a power transformer is necessary. Dissolved Gas Analysis (DGA) has been well knownmethod for transformer condition monitoring. A number of techniques have been developed inorder to assist engineers in interpreting the DGA test results. In this research, interpretation ofDGA test results using Fuzzy Logic approach based on Duval's Triangle is introduced. TheFuzzy Logic was developed based on the mapping of the different areas within the DuvalTriangle. The program validation was carried out by comparing the output program with thesimulated fault condition. The analysis results indicated that the introduced approach hassuccessfully determined the condition of the tested transformers. This approach, thus, wouldprovide advantages over the conventional method in determining the transformer condition.
PENGEMBANGAN MODUL PRAKTIKUM UNTUK MODULATOR OPTIK INTERNAL DAN EKSTERNAL
Authors: Aini Nurulita , Sudiarta Pande Ketut , Putra Sastra Nyoman
Published: February 2023

The optical modulator is a component used to convert information signals into a carrier signal in theform of a light beam. 3 optical modulators are widely used, namely the internal modulator, the machzehndermodulator (MZM), and the electro-absorption modulator (EAM). Each optical modulator hasadvantages and disadvantages, but in general, the purpose of an optical modulator is to modulatelight beams. The purpose of this study was to determine the performance comparison of the internaland external optical modulator and the feasibility of the practicum module. The method used is tosimulate an optical modulator on a fiber-optic network using Optisystem software. The networkfeasibility parameters analyzed were Q-factor, BER, and eye diagram until performance reached theITU-T G.984.2 standard with a minimum limit of Q-factor = 6 and BER 10-9. The optical modulatorchanges internal and external variables. The feasibility test of the practicum module uses the methodof filling out a questionnaire with a Likert scale of 1–5 and giving pre-test and post-test to thepractitioner. The comparison of optical modulator performance shows that MZM performance is betterthan EAM and internal modulator. In the bit rate test, the transmission distance used is 65 km, andsignal power of +7 dBm MZM is capable of sending bit rates of up to 27 Gbps. In testing thetransmission distance, the bit rate used is 10 Gbps, and signal power of +7 dBm MZM can cover adistance of up to 70 km. In the signal power test, the bit rate used is 10 Gbps and the transmissiondistance is 65 km MZM capable of working at +5 dBm signal power. This practicum module is veryfeasible as teaching material according to the percentage of the practitioner's assessment of 88.2%.
PENGEMBANGAN MODUL PRAKTIKUM UNTUK PERBANDINGAN UNJUK KERJA SUMBER CAHAYA OPTIK LED DAN LASER DALAM SISTEM KOMUNIKASI OPTIK
Authors: Utari Yulianingsih Ni Komang , Sudiarta Pande Ketut , Putra Sastra Nyoman
Published: February 2023

LED optical light source and laser diode function as an information carriers in the opticalcommunication systems. Each optical light source in the form of LED, CW Laser, and VCSEL Laserhas advantages and disadvantages. Based on these advantages and disadvantages, a study wascarried out on the internal and external characteristics of optical light sources to determine the optimaloptical light source to use as needed. Simulations are carried out in optical system software. Theperformance analyzed is Q-Factor, BER, and Eye Diagram until it reaches the ITU-T G.984.2standard with a minimum limit of Q-Factor = 6 and BER = 10-9. The feasibility test of the practicummodule uses the method of filling out a questionnaire with a Likert scale of 1–5 and giving pre andpost-test to the practitioner. The results of this study were an increase in the internal characteristics ofthe LED, a decrease in the signal power of the CW Laser, and an increase in the bias current of theVCSEL Laser resulting in a decrease in Q-Factor, and an increase in the BER value. The comparisonof the increase in bit rate and transmission distance showed that CW Laser can transmit a higher bitrate and a longer transmission distance. The comparison of the transmission distance that can becovered by each optical light source shows that the CW Laser travels the farthest transmissiondistance . Increased understanding of the practitioner based on the post-test score which is higherthan the pre-test score can be used as the basis that this practicum module as a whole is verysuitable for use as teaching material. This is also supported by the feasibility test of the questionnairefilling method with a Likert scale of 1-5 with a percentage of the practitioner's assessment of 88.6%.
RUGI – RUGI DAYA AKIBAT PENGARUH KETIDAK SEIMBANGAN BEBAN TERHADAP ARUS NETRAL PADA EFEKTIFITAS PENGGUNAAN DAYA TERPASANG
Authors: Budiyasa I Gede , Artha Wijaya I Wayan , Indra Partha Tjok Gede
Published: February 2023

The increasing need for electrical power with a stable and continuous distribution ofelectricity networks is an absolute requirement in meeting the needs of electrical energy. Theload imbalance between each phase (phase R, phase S, and phase T) which flows a net currentin the transformer, because of the transformer tolerance set by PLN, which is 20% of the powercapacity of the transformer In Abiansemal feeders there is a load imbalance of more than 20 %then in this study the load balancing is carried out in the LVMDV panel on three-phasecustomers, which has an impact on the load imbalance between each phase (phase R, phaseS, and phase T) which causes a neutral current and causes losses (losses). Based on thisproblem, balancing must be done by measuring first. From the measurement results in theLVMDP panel on three-phase customers and data obtained from the results of measurement ofload imbalance during the day is 29.9% and 26.6 % and the load imbalance at night is 62.6%and 31%, as shown in Table 4.5, it can be seen that the bush on the large current neutral INthat flows in the transformer neutral conductor, the greater the loss in the neutral conductor(PN).
RANCANG BANGUN TONGKAT PINTAR TUNANETRA BERBASIS MIKROKONTROLER
Authors: Parito Parito , Diafari Djuni I Gusti Agung Komang , Gunantara Nyoman
Published: February 2023

Blind part of a community that has limited mobility to the environment in social life. Themobility expected by the visually impaired is not only seen from the social side. We both knowthat the sense of sight is one of the sources of vital information for humans. Most of theinformation obtained by humans comes from the sense of sight. The design of this tool will helpusers avoid objects that are in front, will detect water in the reach of the stick with soundnotifications according to sensor readings. In addition, users also get pick-up mobility ifsomething happens on the road by pressing the emergency button on the device, then thedevice will send a telegram message to the family in the form of the coordinates of the GPSstick location. So that the user of this stick will be easy to find if you need emergency help whenyou are away from home. From the results of testing the tool as a whole, the Blind Smart Stickcan work well, namely it can detect obstacles, and the water in front of it, can issue a warningsound to the user, and can send Telegram messages.
PENGARUH KETEBALAN BATU KORAL PADA TANAH LEMPUNG DAN TANAH BERPASIR TERHADAP TEGANGAN LANGKAH DAN TEGANGAN SENTUH
Authors: Nova Suciawan I Putu , Janardana I Gusti Ngurah , Arta Wijaya I Wayan
Published: February 2023

Ground fault currents that flow in the disturbance area and in the switchyard area of theSubstation create tension on the ground which can result in touch voltage and step voltage thatexceed the allowable limits of human safety. The thickness of the coral rock affects the value ofthe touch voltage and step voltage. This research was conducted to determine the effect of thethickness of the coral rock on clay and sandy soil on stepvvoltage anddtouchvvoltage.Themethod used is by measuring coral, clay soils and sandy soils, then calculating thevvalueofttouch voltageaand stepvvoltage based on the thickness of the coral used. The results ofcalculations and analysis of several thicknesses of coral stones used in clay soil, obtained theresults of the touch voltage in the dry state of 153.5615 volts and in the wet state of 152.0702volts, the results of the step voltage in the dry state 188.5057 volts and in the w et state 182 ,8265 volts. On sandy soil, the results of the touch voltage are 153.6893 volts in dry conditionand 152.1981 volts in wet conditions, the results of the step voltage in dry conditions are189.141 volts and in wet conditions 183.4349 volts.
REDISAIN SISTEM PEMBUMIAN DI HOTEL X JIMBARAN
Authors: Eland N.A Khana , Janardana I.G.N , Arta Wijaya I.W
Published: February 2023

Due increases develop the electric power system, the more effective security system is needed.One of the security systems is the earthing system at Hotel X Jimbaran. After takes measurement theaverage measurement results of 1.14 ? ~ 2.47 ? at four different location points that cause the flow ofovercurrent or overvoltage to electrical equipment. This study purpose to improve the existing earthingsystem to achieve earthing resistance <1? according to IEEE standards.This research method consist ofseveral stages, first, survey location to measure the amount of soil resistance (R) to calculate the value ofsoil resistivity (?) then calculate the value of earthing resistance according to the type of earthing systemto achieve an earthing resistance <1 ?, including the Vertical One Earthing Electrode System at Depth Z,Horizontal Earthing One Electrode System, Two Earthing Electrode System with S>L conditions, TwoEarthing Electrode Earthing System with S<L conditions, Plate Earthing System and Grid-Rod EarthingSystem.The calculation analysis results design of the earthing system with earthing resistance <1? each fault location obtained different results. Building 1000 reccomended to choose plate earthing system inwetsoil conditions with the result of earthing resistance 0,9594?; Building 2000 reccomended to choose gridrod earthing system in dry soil conditions with the result of earthing resistance 0,84?; Building 3000reccomended to choose grid-rod earthing system in dry soil conditions with the result of earthingresistance 0,976?; and Ballroom reccomended to choose grid-rod earthing system in wet soil conditionswith the resultof earthing resistance 0,865?. Each location according to the analyzed earthing systemrecommendations, the most economical prices were calculated below IDR 10,000,000,- (Ten MillionIndonesia Rupiah Currency), at Building 1000 with a total cost of IDR.4.034.000,-; Building 2000 with atotal cost of IDR.6.698.650,-; Building 3000 with a total cost of IDR.7.448.200,-; and Ballroom with a totalcost of IDR.7.352.200,-.