bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Karakteristik Kecelakaan Lalu Lintas pada Jalan Yos Sudarso Kota Pekanbaru
Authors: Yandi Tomi , Lubis* Fadrizal , Winayati
Published: January 2021

Peningkatan jumlah penduduk di kota Pekanbaru menyebabkan peningkatan jumlah pergerakan dengan menggunakan kendaraan, Masalah arus lalu lintas yang sering terjadi menyebabkan macet, polusi udara, suara atau kebisingan dan kecelakaan. Masalah kecelakaan perlu dilakukan penelitian dengan tujuan untuk mengetahui karakteristik kecelakaan yang terjadi di Jalan Yos Sudarso Pekanbaru berdasarkan data tingkat kecelakaan yang terjadi pada tahun 2014-2018 sebanyak 73 kejadian kecelakaan dengan jumlah korban meninggal dunia 23 korban, luka berat 37 korban dan luka ringan 83 korban. Metode yang digunakan untuk penelitian ini menggunakan metode Angka Ekivalen Kecelakaan dan Cussum, dari hasil data kecelakaan menunjukan di ruas jalan Yos Sudarso Pekanbaru terdapat beberapa karakteristik kecelakaan selama periode tahun 2014-2018 yaitu berdasarkan hari kejadian sebanyak 33 korban yang terjadi kecelakaan pada hari minggu, berdasarkan waktu kejadian sebanyak 34 korban yang terjadi di pagi hari jam 06.00-12.00, berdasarkan tipe tabrakan sebanyak 53 korban dengan tabrakan depan belakang, berdasarkan jenis kendaraan sebanyak 84 korban menggunakan sepeda motor, berdasarkan kondisi korban sebanyak 83 korban dengan luka ringan, berdasarkan jenis kelamin 101 korban laki-laki, berdasarkan usia sebanyak 50 korban diusia 16-30, berdasarkan faktor penyebab sebanyak 143 korban terjadi karena faktor manusia dan berdasarkan lokasi kejadian sebanyak 16 korban dititik STA 18+000.

Kata Kunci : Karakteristik, Kecelakaaan, Lalu Lintas

 

Abstract Increasing the number of residents in the city of Pekanbaru led to an increase in the number of movements using vehicles, traffic flow problems that often occur causing traffic jams, air pollution, noise or noise and accidents. The problem of accidents needs to be carried out research with the aim to determine the characteristics of accidents that occurred in Jalan Yos Sudarso Pekanbaru city based on data on accident rates that occurred in 2014-2018 as many as 73 accident events with 23 fatalities, 37 fatal injuries and 83 minor injuries victim. The method used for this study uses the Number Equivalent Accident and Cussum method. From the results of the accident data, there are several characteristics of accidents during the Yos Sudarso Pekanbaru road section for the period 2014-2018, which are based on the occurrence of 33 accidents on Sundays, based on there were 34 casualties that occurred in the morning at 06.00-12.00, based on the type of collision as many as 53 victims with a front rear collision, based on the type of vehicle as many as 84 victims using motorbikes, based on the condition of 83 victims with minor injuries, based on sex 101 male victims, based on the age of 50 victims aged 16-30, based on causal factors as many as 143 victims occurred due to human factors and based on the location of the incident as many as 16 victims at the point of STA 18 + 000.

Keywords: Characteristics, Accident, Traffic
Analisis Pembasahan Lahan Gambut Akibat Pembangunan Sekat Kanal (Studi Kasus: Desa Lukun, Kabupaten Kepulauan Meranti)
Authors: Hafiz Alfarisyi  , Sutikno Sigit , Rinaldi
Published: January 2021

Restorasi gambut sangat diperlukan untuk merehabilitasi ekosistem gambut. Badan Restorasi Gambut (BRG) telah menerapkan upaya restorasi gambut salah satunya melalui kegiatan rewetting (pembasahan lahan gambut kembali dengan pembuatan sekat kanal) di dalam wilayah Kesatuan Hidrologi Gambut (KHG). Desa Lukun memiliki lahan gambut yang terbakar dan terdegradasi cukup luas. Dengan adanya pembasahan kembali gambut, diharapkan gambut yang terganggu hidrologinya akan mengalami perbaikan dan gambut akan tetap dalam kondisi basah sehingga laju degradasi dan potensi kebakaran gambut dapat dicegah. Oleh karena itu dilakukan analisis pembasahan lahan gambut akibat pembangunan sekat kanal dengan menggunakan water level logger yang dipasang pada beberapa sumur pantau yang ada di sekitar kanal. Hasil yang diperoleh dari water level logger berupa tekanan hidrostatis dan tekanan atmosfer yang kemudian diolah menjadi grafik fluktuasi muka air tanah. Pada penelitian ini menunjukkan hasil bahwa sekat kanal memiliki dampak terhadap fluktuasi muka air tanah sebagai upaya pembasahan lahan gambut dan radius pembasahan yang dihasilkan akibat penyekatan kanal mencapai kurang dari 100 meter. Selain sekat kanal, kenaikan muka air tanah juga dipengaruhi oleh curah hujan.
Pra Rancangan Camping Ground Dan Glamping Puncak Cubodak Dengan Pendekatan Konsep Wisata Halal
Authors: Ramadhani Suci , Sundari Titin , Silva Hendri
Published: January 2021

Puncak Cubodak is in Kampar regency, precisely on Jalan Lintas Bangkinang-Payakumbuh, Tanjung Alai, XII Koto Kampar, Kampar regency. Is one of the tourist attractions that have views of green hills, ‘island’ which is surrounded by Danau PLTA Koto Panjang.

               So far, Puncak Cubodak has only been used for tourism photographs, it is unfortunate if the potential of Puncak Cubodak is only enjoyed only by taking pictures. Therefore, the step to develop the Puncak Cubodak is to add accommodation facilities in the form of camping and glamping areas. And also applying the concept of tourism that is also developing in Indonesia, namely the concept of Halal Tourism. Halal Tourism here is more applicable to Muslim-friendly tourism and availability of halal food and prayer place.

               The purpose of this paper is to obtain a design concept with a research method in the form of a Puncak Cubodak environmental analysis, user analysis, and building analysis. The results obtained from the analysis are the design concept with the approach to the concept of halal tourism in the form of images. With this design concept, it is hoped that it can develop Puncak Cubodak tourism and the concept of halal tourism can be more widely recognized by thepublic, especially in Pekanbaru.
Perancangan Pesantren Mualaf Pekanbaru Pendekatan Arsitektur Islam
Authors: Gusriyadi Ilham , Repi Repi , Cheris Rika
Published: January 2021

Islamic Boarding School is a traditional educational institution, teaches various things about Islam, in contrast to Islamic boarding schools in general, the Islamic Boarding School for Muslims is specifically intended for Converts, namely for people who have recently joined Islam. Islamic Boarding School guides Converts in learning everything about Islam, namely in the field of guidance and education in the form of the Aqeedah, akhlaq, tauhid, reading the Qur'an, Fiqh, Tafsir and Arabic. The design is intended so that Converts feel the presence of brothers and sisters who can help strengthen their Islamic beliefs and boarding schools as a place or home for them so they can feel a peaceful Islam. Pekanbaru Islamic Boarding School can be a national and international Islamic educational institution and an attraction of the city of Pekanbaru, known as the city of Madani in Islam and in harmony with the Malay culture that is characterized by a strong Islamic. Comfort in learning for converts is very important to be able to focus on studying Islamic religion. The design of Islamic boarding schools uses qualitative research methods to obtain primary and secondary data, literature studies, empirical studies and interviews related to the concept of Islamic Architecture approach in Islamic Boarding Schools. The application of Islamic boarding school design conceptualizing the Islamic Architecture approach to the application on the outside and inside the building in the form of ornaments that reminds Allah SWT, setting the space to maintain akhlaq and make it easier of students activity.
Analisis Kondisi Hidrologi DAS Siak Bagian Hulu Berdasarkan Peta Tata Guna Lahan Tahun 2014 Menggunakan Model Flow Persistance
Authors: Ilva Habrio , Suprayogi* Imam , Fauzi Manyuk
Published: January 2021

Daerah Aliran Sungai (DAS) memiliki fungsi yang sangat penting, yaitu sebagai tempat penyedia air pertanian, industri dan pemukiman. Aktivitas manusia dalam memanfaatkan sumber daya alam hutan, tanah dan air untuk budidaya tanaman, pertambangan, pembangunan dan kegiatan lainnya dapat mengakibatkan terjadi perubahan kondisi tata air suatu DAS. Salah satu cara untuk menilai kondisi DAS adalah dengan menggunakan model hidrologi. Tujuan utama penelitian adalah ini adalah menguji kemampuan suatu model untuk melakukan  penilaian  terhadap  kondisi  hidrologi  DAS  Siak bagian Hulu. Metode  pendekatan yang digunakan dalam penelitian ini adalah  Flow Persistance Model. Model ini  mensimulasikan aliran sungai pada suatu DAS yang dikembangkan oleh World Agroforestry Centre (ICRAF) untuk  membantu  menilai  kondisi  suatu  DAS. Data  curah hujan yang digunakan dari Stasiun Petapahan Baru  dari tahun 2006-2016, data AWLR stasiun Pantai Cermin yang mendiskripsikan pola hubungan tinggi muka air terhadap fungsi waktu bersumber dari  BWS Sumatera III. Peta Tata guna lahan diperoleh dari BP - DASHL  Indragiri Rokan untuk tahun 2014. Hasil utama penelitian membuktikan  bahwa nilai  FP sebesar 0.754 mengindikasikan bahwa nilai debit pada Sungai Siak yang  relatip stabil  selama kurun waktu penggunaan  tata  guna  lahan  pada  DAS  Siak  Hulu   tahun  2014  dengan  klasifikasi  fungsi  DAS  kondisi  baik.
Struktur Pengembangan Kawasan Permukiman Lama Sebagai Identitas Morfologi Kawasan Kabupaten Kepulauan Meranti
Authors: Masrul Wati , Samra Boby
Published: January 2021

ABSTAK

 

Perkembangan sebuah kota tidak terlepas dari adanya beberapa aktivitas yang mempengaruhi baik dari aspek sosial, budaya, ekonomi dan perdagangan. Hal ini terjadi di asia barat hingga sepanjang pesisir pantai sumatera. Sejarah telah mengungkapkan kan bahwa  pertumbuhan  kerajaan melayu yakni siak sri indrapura mengakibatkan tumbuh nya cikal bakal sebuah kota , dimana kota-kota yang berada di sepanjang pesisir pantai sumatera di jadikan sebagai tempat persinggahan.salah satunya kota selat panjang yang terletak di kabupaten  kepulauan meranti .Dengan adanya aktivitas perdagangan mengakibatkan aspek aspek lain seperti pemukiman juga ikut tumbuh,  melihat proses perkembangan yang terjadi di kota selat panjang maka penelitian yang di lakukan kali ini bertujuan untuk melihat struktur pengembangan kawasan permukiman lama sehingga akan di ketahui morfologi kota tersebut. Penelitian ini di lakukan dengan menggunakan metoda deskriptif kualitatif yang  mengacu kepada figure ground pemukiman lama sehingga akan terlihat morfologi kawasan permukiman lama yang akan menjadi indentitas kota tersebut.

 

ABSTRACT

 

The development of a city is inseparable from the existence of several activities that affect both the social, cultural, economic and trade aspects. This happened in West Asia along the coast of Sumatra. History has revealed that the growth of the Malay kingdom namely Siak Sri Indrapura resulted in the growth of a forerunner to a city, where cities along the coast of Sumatra were made as a stopover. One of them is a long strait city located in the Meranti archipelago district. the existence of trade activities resulted in other aspects such as settlements also growing, seeing the development process that occurred in the city of the strait, the research conducted this time aims to look at the structure of the development of the old settlement area so that the morphology of the city will be known. This research was conducted using a qualitative descriptive method that refers to the figure of the old settlement ground so that the morphology of the old settlement area will be seen which will be the identity of the city.
Kuat Tekan dan Porositas Beton menggunakan Air Gambut dan Kapur Tohor untuk Konstruksi di Lingkungan Gambut
Authors: Tizia Hagus , Olivia* Monita , Saputra Edy
Published: January 2021

Air gambut banyak ditemukan di daerah lahan gambut atau dataran rendah di Sumatera, khususnya di Kabupaten Bengkalis. Air gambut berwarna coklat tua kehitaman, memiliki kadar organik tinggi dan memiliki kemasaman tinggi. Pada umumnya di daerah terpencil di pulau Bengkalis dengan sumber air bersih terbatas maka air gambut sering digunakan sebagai air pencampur beton. Air gambut juga dipakai sebagai air perawatan beton, padahal karakteristik air gambut tidak memenuhi persyaratan sebagai air bersih. Pada penelitian ini dilakukan kajian kuat tekan dan porositas beton menggunakan air gambut yang belum diolah dan telah diolah dengan kapur tohor. Kapur tohor (CaO) digunakan sebanyak 0,05 g/l dan dilarutkan selama 5-10 menit sehingga menghasilkan air dengan pH 7. Beton yang direncanakan menggunakan pengikat Ordinary Portland Cement (OPC) dan Portland Composite Cement (PCC) dengan kuat tekan rencana sebesar 20 MPa pada umur 28 hari. Sebagai kontrol digunakan benda uji yang dibuat menggunakan air biasa sebagai air pencampur. Benda uji dibuat dengan air gambut yang telah diberi kapur tohor dan setelah dicetak benda uji direndam langsung di saluran air gambut di Kabupaten Bengkalis. Hasil penelitian menunjukkan bahwa kuat tekan beton OPC menggunakan air gambut-kapur tohor (OPC-K) meningkat selama umur perendaman hingga 150 hari. Sedangkan beton PCC air gambut-kapur tohor (PCC-K) terus mengalami peningkatan kuat tekan hingga umur 91 hari tetapi terjadi penurunan kekuatan hingga umur 150 hari. Beton kontrol OPC memperlihatkan penurunan kuat tekan setelah perendaman, tetapi beton kontrol PCC menunjukkan kenaikan kekuatan. Porositas beton OPC-K terus meningkat pada umur 150 hari, sedangkan pada beton PCC-K terjadi penurunan porositas yang cukup signifikan. Penggunaan air gambut dengan kapur tohor sebagai air pencampur dapat memperbaiki kuat tekan dan porositas beton OPC dan PCC yang terpapar air gambut dalam jangka panjang.
Optimasi Penempatan Optimal Peralatan SVC Dengan Metode Algoritma Genetika
Authors: Zulfahri Zulfahri , Zondra Elvira
Published: January 2021

Sistem kelistrikan membu­tuhkan kondisi tegangan yang stabil. Salah satu me­­­to­­­de yang dipakai untuk menjaga tegangan tersebut adalah dengan penem­pa­tan peralatan kom­pen­sator VAr secara optimal. Tujuan dari pene­m­patan peralatan ini adalah untuk memperbaiki tegangan dalam kondisi undervol­tage atau over­voltage. Pada saat ter­jadi under­voltage dan over­voltage perlu dila­ku­kan penambahan dan pengu­rangan daya reak­tif. Salah satu alat yang ber­fung­­si untuk melakukan penambahan dan pengu­rangan daya reaktif ada­­lah Static Var Compen­sator (SVC), komponen yang terdiri dari reaktor dan kapasitor yang diatur oleh thyristor. Metode yang digunakan untuk penentuan penempatan optimal peralatan SVC­ pa­da­ penelitian ini  adalah Algoritma Genetika.  yang terin­spi­rasi dari  teknik pencarian heuristik yang didasarkan pada gagasan evolusi seleksi alam dan genetik. GA dapat melakukan per­­bai­kan tegangan pada sistem de­ngan injeksi SVC. Hasil simulasi dari metode ya­ng di­usulkan dengan injeksi kompensasi SVC se­be­­sar 70 Mvar dapat menaikkan  tegangan  te­ren­dah 0.850­ pu menjadi  0.942 pu, sehingga profil tegangan bus akan dapat dijaga pada nilai-nilai yang diijinkan sehingga kontinuitas serta kualitas operasi sistem tenaga listrik  dapat senantiasa dipertahankan.
Modifikasi Sistem ATS-AMF Diesel Emergency Generator Pada PLTU dengan Metode Warming Up
Authors: Eteruddin Hamzah , Setiawan David , Pradatama Sitepu Hebby
Published: January 2021

PLTU Tenayan Raya merupakan pembangkit termal berbahan bakar batubara yang berstatus baseload untuk menopang sistem kelistrikan di Riau khususnya Pekanbaru. Pengoperasian Diesel Emergency Generator (DEG) yang terkontrol merupakan cara utama agar peralatan-peralatan pendukung pada pembangkit listrik tidak berhenti beroperasi saat terjadinya kondisi emergency. Pada saat mengambil alih suplai tenaga listrik ke beban ataupun sebaliknya diperlukan Automatic Transfer Switch (ATS) – Automatic Main Failure (AMF) yang mempunyai peranan utama untuk memerintahkan DEG beroperasi. Agar DEG dapat bekerja dengan baik, diperlukan sistem ATS-AMF yang handal, dan dapat berkerja pada kondisi emergency maupun standby. Metode warming up dengan sensor-sensor yang digunakan dapat menjaga agar DEG senantiasa siap saat dibutuhkan.
Analisis Transien Pada Sistem Transmisi 150 Kv Riau Setelah Beroperasinya PLTU Tenayan Raya Menggunakan Powerworld Simulator
Authors: Gunawan Indra , Eteruddin Hamzah , Situmeang Usaha
Published: January 2021

Dalam proses penyaluran energi listrik kestabilan sistem merupakan hal yang sangat penting. Salah satu masalah dalam kualitas daya yaitu stabilitas transien. Riau merupakan salah satu provinsi yang ada di Indonesia, dengan luas wilayah 87.023,66 km2. Pertumbuhan jumlah penduduk provinsi Riau sangat besar yaitu pada tahun 2016 sebesar 6.500.971 jiwa dan tahun 2017 meningkat menjadi 6.657.911 jiwa. Riau defisit energi listrik sebesar 270 MW dari kebutuhan listrik 600 MW. Dalam upaya untuk memenuhi kebutuhan listrik maka sistem transmisi Riau telah mengoperasikan Pembangkit Listrik Tenaga Uap (PLTU) Tenayan Raya. Dengan penambahan ini perlu dilakukan kajian mengenai kestabilan transien yang terjadi pada sistem. Analisa dilakukan pada saat terjadi gangguan hubung singkat 3 phasa untuk melihat respon sudut rotor generator menggunakan software Powerworld Simulator 20. Pada saat gangguan hubung singkat 3 phasa terjadi pada ujung sisi kirim saluran transmisi dari gardu induk Tenayan Raya menuju gardu induk Teluk Lembu diperoleh waktu pemutus sebesar 0,29 detik dengan sudut pemutus kritis 108,6266  Hasil simulasi menggunakan powerworld simulator diperoleh waktu pemutus maksimum 0,36 detik. Jarak titik gangguan berbanding lurus dengan waktu dan sudut pemutus kritis, semakin jauh titik gangguan pada saluran transmisi maka semakin besar sudut pemutus kritis.
The Drainage Design on Umban Sari Street from STA 0+500 until STA 0+750 Rumbai Sub-District Pekanbaru City
Authors: Gunawan Fadli , Trisep Haris Virgo , Anggraini Muthia
Published: January 2021

Drainage is an important part of city building. Drainage’s function is to channel the water stream in order to prevent pudde on road surface which will harm the road  construction.  Therefore,  an  adequate  drainage  is  needed  to  contain  the rainwater  and  waste  discharge  and  channel  it  to  the  sewer.  The  purpose  of  this research  is  to  calculate  the  appropriate  and  adequate  canal  drainage  capacity and dimension so that puddles and floods will less likely to happen in the next 10 years  on  the  research  sector.  Methods  used  is  gumbel,  arithmetic  and  rational. The result of research is economical section’s trapezoidal drainage design which dimension  needed  is  H  =  1,14  m.  B  =  1,41  m,  T  =  2,55  m  and  w  =  0,75  m. Therefore  can  be  concluded  that  designed  drainage  capacity  plan  on  sector Umban Sari street is capable to contain rainwater discharge, because it adjusted to total discharge plan of 0,55509 m3/s and total discharge plan of 0,246 m/s. The suggestion  from  this  research  so  that  this  planned  drainage  can  function optimally  is  all  party  concerned  will  have  to  maintenance  the  drainage periodically, by doing checking, cleaning and not littering.
Angkutan Sedimen Sungai Siak disekitar Pilar Jembatan Siak I
Authors: Nick Risenal , Trisep Haris Virgo , Soehardi Fitridawati
Published: January 2021

Siak River is one of the primary rivers in Riau province, so that this river holds and flows water runoff from the left and right areas along the river flow. As a result of changes in sediment transport discharges resulted in degradation in the riverbed of Siak, resulting in the collapse of the bridge. Concerns due to the collapse of several bridges over the Siak River and seeing the condition of the Siak Bridge I need to calculate how much the sediment river sediment transport is around the Siak bridge pillar. The method used to analyze the data uses the Yang's method and hydraulic concept, based on the results of the analysis and calculation of sedimentation transport due to maximum discharge, the largest sediment transport is 3,753,25924 kg / day.
Pengaruh Kemiringan Pantai Buatan Permeabel dan Impermeabel terhadap Kofisien Refleksi
Authors: Ziaulhaq Ilham , Sutikno Sigit , Rinaldi
Published: January 2021

Pantai mempunyai arti yang sangat penting, karena pantai merupakan pertemuan antara daratan dan lautan, sehingga mempunyai sifat-sifat yang sangat majemuk. Gelombang yang datang mengenai dan membentur sesuatu akan dipantulkan sebagian atau seluruhnya. Gelombang yang membentur mengenai suatu pantai sebagian energi gelombang akan dipantulkan (refleksi). Gelombang air merupakan salah satu parameter penting dalam menentukan kekuatan pantai dalam memantulkan gelombang, maka pada tugas akhir ini akan diteliti pengaruh gelombang air pada pantai buatan terhadap koefisien refleksi. Dimana pantai buatan tersebut terbuat dari material permeabel dan impermeabel. Penelitian berupa pengujian fisik di laboratorium dengan melakukan variasi-variasi periode gelombang, tinggi gelombang, sudut dan material pantai buatan. Hasil pada penelitian ini menunjukan adanya pengaruh tinggi gelombang, periode gelombang, sudut dan material pantai terhadapa nilai koefisien refleksi gelombang. Kesimpulan pada penelitian ini adalah nilai koefisien refleksi akan semakin kecil jika kemiringan model pantai buatan semakin besar.
Analisis Biaya Pemeliharaan dan Perawatan Kantor Pelayanan Bea dan Cukai Pekanbaru
Authors: Dwi Weno , Zainuri  , Apriani Widya
Published: January 2021

The existence of buildings has an important role in human life according to the purpose of the building. After completion of a building is expected to be able to carry out its functions according to the age of the plan. The purpose of this study is to estimate the cost of maintenance and care at the Pekanbaru Customs and Excise Service Office based on PERMEN NO.24 / PRT / M / 2008. It is expected that with this system, maintenance and maintenance activities will be in accordance with applicable standards and retain the use and value of the building. Regulation of the Minister of Public Works Number: 24 / PRT / M / 2008 concerning guidelines for building maintenance and maintenance, building maintenance This research was conducted using the Approximate Estimate method using the highest average unit price per m² of storey buildings for buildings accurate building as a guideline.he results of the calculation of this study found the estimated cost estimate of rough estimate (approximate estimate) of Rp. 16.156.679,93, - when compared with the calculation of the building price of Rp. 11.483.051,200 - the percentage of costs for maintenance of buildings in Pekanbaru Customs Service Office is only 0,1407% of the total price of the building, so that it can be categorized in the level of minor damage (<35%). Whereas the annual maintenance fee is Rp. 319.792.000,00, - in 2020 which is expected to increase every year based on the value of inflation based on Bank Indonesia.

 

Keywords: Estimation, Maintenance, Maintenance, Offices spase
Aplikasi Sistem Informasi Geografis (SIG) untuk Prediksi Erosi Lahan dengan Metode MUSLE
Authors: Sihaloho Rianty , Bambang Sujatmoko  , Manyuk Fauzi
Published: January 2021

Perubahan tata guna lahan dapat mempengaruhi jumlah erosi dan sedimentasi pada suatu DAS. Metode MUSLE digunakan untuk mengestimasi besar erosi pada lahan dan SIG untuk menentukan parameter-parameter MUSLE. Nilai sedimentasi lahan yang didapat dari menghitung nilai erosi yang terjadi pada sub DAS dengan nilai angkutan yang terjadi pada setiap sub DAS. Pada Sub DAS Sail, nilai angkutan angkutan lebih besar dibandingkan dengan nilai erosi yang terjadi, sehingga hasil erosi yang ada pada lahan akan terbawa masuk ke dalam sungai.Hasil analisis menunjukkan nilai erosi lahan total dengan 7 sub DAS sebesar 5.927.888.464209 ton / tahun, nilai erosi lahan total dengan 10 sub DAS 5.927.941.901744 ton / tahun, dan nilai erosi lahan total dengan 25 sub DAS sebesar 5.927 0,941,901596 ton / tahun.

Kata Kunci: Tataguna lahan, sedimentasi lahan, erosi, MUSLE, SIG
Metode Pengukuran Aliran Air Tanah di Lahan Gambut
Authors: Pribadi Muhammad Agung , Sutikno Sigit , Yamamoto Koichi
Published: January 2021

Provinsi Riau yang memiliki lahan gambut lebih dari 60% dari total lahan gambut yang terdapat di Pulau Sumatera. Di Provinsi Riau, Kabupaten Bengkalis salah satu wilayah yang penyebaran lahan yang terluas kedua setelah kabupaten Indragiri. Kabupaten Bengkalis yang terdiri dari wilayah daratan dan pulau, yang mana wilayah pulau tersebut memiliki lahan gambut lebih dari 80% dari total keseluruhan luas pulau. Pulau bengkalis telah mengalami fenomena – fenomena yang terjadi seperti abrasi, subsidensi, dan kebakaran lahan. Abrasi yang terjadi di Pulau Bengkalis bagian Barat Laut telah berlangsung lebih dari 30 tahun terakhir membuat penelitian ini bagaimana situasi hidrologis yang terjadi akibat fenomena abrasi ini. Penelitian ini bertujuan untuk mengetahui bagaimana aliran air tanah di pinggir pantai abrasi dengan menggunakan alat PDV (Paper Disk Velocimeter). Alat PDV ini merupakan pengukuran kecepatan aliran air tanah yang dikembangkan di Universitas Yamaguchi, Jepang. Alat ini sangat sederhana dan ekonomis jika dibandingkan alat lain yang cenderung rumit dan mahal.
Optimalisasi Pengaturan Tegangan di Jaringan Listrik Dengan Menggunakan Genetik Algoritma
Authors: Zulfahri  , Tanjung Abrar , Monice Monice
Published: January 2021

Semakin besar beban reaktif induktif maka akan menyebabkan penurunan tegangan, memperbesar rugi-rugi  daya pada sistem, menurunkan faktor daya dan menurunnya  kapasitas pendistribusi daya listrik . Untuk mengurangi beban daya reaktif induktif, maka diperlukan sumber daya reaktif kapasitif, yaitu dengan memasang kapasitor dengan ukuran optimal dan di lokasi yang tepat.

Paper ini memaparkan penggunaan algoritma genetika untuk mengatur optimasi pengaturan tegangan dalam sistem. Melalui aliran daya Newton Rapshon dalam hal pengaturan tegangan dan meminimalkan kerugian daya. Meskipun metode kontrol tegangan yang berbeda dapat digunakan, teori ini berfokus pada bank kapasitor (kapasitor shunt) sebagai parameter variabel. Metode ini diterapkan pada sistem bus standar IEEE 30 untuk memverifikasi kemampuan dan kapabilitasnya.

Dari percobaan dapat dilihat bahwa pendekatan algoritma genetika berhasil menghasilkan kapasitor shunt sebesar 21,9 KVar. diporeleh tegangan tertinggi 1.082  pu dan terendah 0.859 pu dan pengurangan nilai sebesar 2712 KVA. Serta  penghematan daya listrik dapat dilakukan sebesar 11.9313  %. Total ukuran kapasitor dapat dikurangi dari kondisi awal  23,3 Mvar  pada Genetika algoritma dapat dikurangi menjadi 21,9 Mvar, sehingga sistem dapat menghemat 1,4 Mvar.
Demanda física del portero de fútbol : necesidades y diferencias en respuesta al género
Authors:   Universidad Pedagógica Nacional, Becerra Patiño Boryi Alexander
Published: January 2021

Introducción: El estudio de la demanda física del portero de fútbol, obedece a unas necesidades y varía en respuesta con coherencia en las diferencias de género, por ello, su determinación en la competencia es necesaria. Objetivo General: Poder determinar el perfil de actividad y los requerimientos físicos (distancia total recorrida, aceleraciones, desaceleraciones, velocidad) en la competencia en los porteros/as de fútbol universitario en Bogotá a lo largo 64 partidos, implementando dispositivos GPS “FieldWiz” con una frecuencia de muestra de (10Hz) para evaluar las diversas variables. Metodología: La población evaluada fueron 4 porteros de fútbol masculino y 4 porteras de fútbol femenina, y para ello, se evaluaron 8 partidos para cada portero y 8 partidos para cada portera. El tratamiento de los datos estadísticos se realizó mediante la implementación del programa R, permitiendo la valoración y asociación de las variables, para que, en un primer momento en que se realizó un análisis descriptivo para las diversas categorías de locomoción y se pudo conocer la distribución de la velocidad, así mismo, se realizó un análisis de varianza con dos indicadores (género y velocidad), a partir de la distancia recorrida, y que, fue calculada de forma euclediana entre los datos arrojados por el dispositivo GPS, y finalmente, se realizó un análisis de todas las variables (aceleración, desaceleración, distancia recorrida, sprint, velocidad, velocidad máxima y máxima aceleración) por medio de la prueba t para diferencia de medias para dos poblaciones (varones y mujeres, buscando encontrar las diferencias en función del género. Resultados: Los datos se presentan en DV, promedio y prueba T para comprobar la validez de las muestras. Esta es una investigación con un enfoque cuantitativo, de carácter descriptivo y no experimental. Conclusiones: La investigación buscó abordar coherentemente, cuál es el perfil de actividad en el portero de fútbol universitario y las posibles diferencias en atención al género.
MOTIVASI IBU HAMIL TENTANG KEBERSIHAN GIGI DAN MULUT DI PUSKESMAS NGUMPAKDALEM BOJONEGORO
Authors: Fitriana Sintya Malra nur , Mahirawatie Ida Chairanna , Marjianto Agus
Published: January 2021

Masalah penelitian ini tingginya angka persentase karies gigi ibu hamil di Puskesmas Ngumpakdalem Kecamatan Dander Bojonegoro yaitu sebesar 60,94% dari target bebas karies 54,6%. Tujuan penelitian ini diketahuinya motivasi ibu hamil tentang kebersihan gigi dan mulut di Puskesmas Ngumpakdalem Kecamatan Dander Bojonegoro. Metode penelitian yang digunakan deskriptif. Sasaran yang terlibat dalam penelitian ini adalah 30 orang ibu hamil yang berusia 20-30 tahun. Instrument yang digunakan dalam penelitian adalah kuesioner. Hasil penelitian menunjukkan bahwa motivasi ibu hamil tentang kebersihan gigi dan mulut di Puskesmas Ngumpakdalem Kecamatan Dander Bojonegoro tahun 2020 dalam kategori kuat. Kesimpulan ibu hamil telah memiliki motivasi untuk menjaga kebersihan gigi dan mulut.

Kata kunci : Motivasi, Kebersihan Gigi dan Mulut, Ibu Hamil
Reliability of pressure pain threshold to discriminate individuals with neck and low back pain
Authors: Zicarelli Carlos A.M. , Santos João Paulo M. , Poli-Frederico Regina Célia , Silva Rubens A. , Barrilec Fabrice , Barrette Gilles , Iida Ligia M. , Russo Priscilla P. , Larangeira Lino L.S. , Fernandes Marcos T.P. , Fernandes Karen B.P.
Published: January 2021

BACKGROUND: Pressure pain threshold (PPT) is decreased in several musculoskeletal disorders, giving indirect evidence regarding pain status. Despite the fact that PPT has been already proven to be reliable in patients with acute conditions, there is great variability of methods and results observed within studies, and only a few evidences confirming its reliability in chronic conditions. OBJECTIVE: The objective of this study was to determine the test-retest reliability of PPT in the neck and low back regions to discriminate individuals with neck or low back pain from healthy individuals. Additionally, one secondary aim was to establish the minimum detectable change (MDC) and the standard error of measurement for future clinical studies and interventions. METHODS: In this reliability study, 74 individuals (15 individuals from the neck pain and 17 from the neck control group; 21 individuals from the low back pain and 21 from the low back control group). PPT was measured in the neck region (suboccipital, trapezius and supraspinal muscles) and in the lower back region (paraspinal muscles in the levels of L1, L3 and L5). Intrarater reliability was assessed using intraclass correlation coeficient and Bland-Altman. RESULTS: Excellent intra-rater reliability was observed for both (ICC of 0.874 for the neck pain versus ICC of 0.895 in neck control group; ICC of 0.932 for the low back pain group versus ICC of 0.839 for the control group). A small bias was observed for all groups (-0.08 for the neck pain group versus 0.10 in the control group; and 0.32 in low back pain group versus 0.44 in the control group). Minimum detectable change of 0.63 kgf of neck pain and 1.21 kgf of low back pain was calculated. It was found difference in PPT between pain and control groups (p< 0.05). CONCLUSION: It may be suggested that the protocol with PPT is reliable and able to discriminate individuals with and without neck and low back pain with a minor measurement error. Therefore, this method may be used to detect possible progress after interventions in patients with neck or low back pain.
Can red blood cell function assays assess response to red cell-modifying therapies?
Authors: White Jennell , Lancelot Moira , Gao Xiufeng , Tarasev Michael , Chakraborty Sumita , Emanuele Marty , Hines Patrick C.
Published: January 2021

BACKGROUND: Red blood cell (RBC)-modifying therapies have provided new opportunities for patients with sickle cell disease, although the absence of validated biomarkers of RBC function is a barrier to FDA approval and clinical adoption. Flow Adhesion (FA) and Mechanical Fragility (MF) biomarkers objectively stratify individuals with SCD into pro-adhesive vs pro-hemolytic phenotypes respectively, which may potentially help predict therapeutic responses. OBJECTIVE: A Phase 3 clinical trial to determine the effectiveness of vepoloxamer, an RBC-modifying therapy in sickle cell disease (SCD), failed to meet its primary clinical outcome. The aim of this study was to determine whether standardized flow adhesion and mechanical fragility bioassays could differentiate cellular level “responders” from “non-responders” to vepoloxamer treatment. METHODS: Standardized biomarkers of RBC function (adhesion and mechanical fragility) were utilized in this study to assess the effect of veploxamer on blood samples collected from SCD subjects and to determine whether our assays could differentiate cellular-level “responders” from “non-responders” to vepoloxamer treatment. A Wilcoxon signed-rank test was used to test for differences in adhesion in response to varying vepoloxamer treatments and a Wilcoxon Mann-Whitney test was used to assess differences in mechanical fragility, pre- and post-vepoloxamer treatment. A p-value<0.05 was considered significant. RESULTS: In this study, we report that in vitro treatment with vepoloxamer reduced adhesion by >75%in 54%of patient samples and induced changes in the membranes of sickle erythrocytes (SSRBCs) making sickle cells behave more like normal erythrocytes (AARBCs) in terms of their resistance to hemolysis. CONCLUSION: This study demonstrates that the standardized flow adhesion and mechanical fragility biomarkers described here may be useful tools to predict clinical responders to RBC-modifying therapies.
Effects of Ruscus extract on muscarinic receptors: Is there a role for endothelium derived relaxing factors on macromolecular permeability protection and microvascular diameter changes?
Authors: de Souza Maria das Graças C. , Cyrino Fatima Z. G. A. , Sicuro Fernando L. , Bouskela Eliete
Published: January 2021

BACKGROUND: Protective effects of Ruscus extract on macromolecular permeability depend on its capacity to stimulate muscarinic receptors on endothelial cells and induce the release of endothelium derived relaxing factors (EDRFs). OBJECTIVE: To investigate if these effects depend only on activation of muscarinic receptors or if EDRFs release are also necessary. We have also investigated the participation of Ruscus extract on muscarinic-induced release of EDRFs on microvascular diameters. METHODS: Hamsters were treated daily during two weeks with Ruscus extract (50, 150 and 450 mg/kg/day) and then macromolecular permeability induced by histamine and arteriolar and venular diameters after cyclooxygenase (COX) and nitric oxide synthase (NOS) inhibitors: indomethacin and Nω-Nitro-L-arginine (LNA), respectively applied topically at 10–8M, 10–6M and 10–4M were observed on the cheek pouch preparation. RESULTS: Ruscus extract decreased macromolecular permeability in a dose-dependent fashion and did not affect microvascular diameters. NOS and COX inhibitors enhanced its effect on microvascular permeability. NOS inhibition reduced arteriolar diameter and COX blocking decreased arteriolar and venular diameters at the lowest dose and increased them at higher doses of Ruscus extract. CONCLUSION: The protective effect of Ruscus extract on macromolecular permeability seems to be mediated only via muscarinic receptors. Muscarinic activation attenuated vasoconstrictive tone through cyclooxygenase-independent endothelium derived relaxing factors.
The impact of psychological contract violation and generation difference in the workplace: An empirical study of China
Authors: Lee Chao-Hsing , Chen Chien-Wen
Published: January 2021

BACKGROUND: Financial rewards might not the only way to keep employees’ stay and to have high performance. We attempt to introduce the perspective of psychological contract (PC) to study the employment relationship. OBJECTIVE: This study is based on the Chinese private enterprise context to explore the effect of psychological contract violation (PCV) and explore whether there are generational differences in the organization. METHODS: We adopt PLS-SEM for empirical research evaluation. A total of 313 valid sample questionnaires were taken. RESULTS: The statistical analysis results show that the psychological contract violation has a significant positive impact on turnover intentions. Psychological contract violation also has significant negative effects on in-role performance and organizational citizenship behavior. In the analysis of generational differences for generation Y employees and generation X employees, when facing psychological contract violations, generation Y employees are more likely to have a stronger turnover intention, lower in-role performance, and less organizational citizenship behavior than generation X employees. CONCLUSIONS: The revised psychological contract violation model is confirmed in the Chinese context. There are significant differences in the influence of generational factors on the psychological contract violation model.
Raising voice: Effect of psychological contract breach on employee voice through organizational cynicism
Authors: Afshan Gul , Serrano-Archimi Carolina , Lacroux Alain
Published: January 2021

BACKGROUND: Given the importance of the roles of psychological contract and voice in organizational life, this study highlights the effect of contract breach on managers and their voice directed at top management members, key representatives of the organization. OBJECTIVE: Drawing on social exchange theory, this study examines the relationship between a psychological contract breach (PCB) and concurrent organizational cynicism resulting in a considerate and aggressive managerial voice behavior. METHODS: Data came from an online survey on PCB and subsequent behaviors from a sample of 336 in-company European and Asian employees with managerial responsibilities working in France. RESULTS: The results provide partial support for the hypothesized relationships and show the consequences of the bi-dimensionality of aggressive voice behavior (fight and negativity). Moreover, organizational cynicism mediates the relationship between PCB and the negativity dimension of aggressive voice. However, data analysis shows no support for organizational cynicism’s mediating role in the relationship between PCB and considerate voice. CONCLUSIONS: The study results of 336 in-company European and Asian employees having a managerial position, like project managers, middle managers, executives, employs a great insight into managerial voice behavior. This study contributes to the limited research conducted on the managerial voice in response to PCB. The findings have important implications for employers to understand managers’ psychological contracts and related voice behavior.
Machine learning of stochastic automata and evolutionary games
Authors: Lee Bor-Hon , Yang Albert Jing-Fuh , Chen Yenming J.
Published: January 2021

A large categories of time series fluctuate dramatically, for example, prices of agriculture produce. Traditional methods in time series and stochastic prediction may not capture such dynamics. This paper tries to use machine learning to tune the model for a real situation by establishing a price determination mechanism on the model of stochastic automata (SA) and evolutionary game (EG). Time series volatility attributed to the chaotic process can be obtained through the learning algorithm of Markov Chain Monte Carlo (MCMC). Using machine learning through the chaotic analysis of stochastic automata and evolutionary games, we find that a more spatially aggregated distribution (smaller entropy) leads to larger time series fluctuations, regardless of the initial distribution of crops. By integrating the factors discovered in this study, we can develop a better learning algorithm in a highly volatile time series in agriculture prices.
Classification of human electrocardiograms by multi-layer convolutional neural network and hyperparameter optimization
Authors: Chen Yao-Mei , Chen Yenming J. , Tsai Yun-Kai , Ho Wen-Hsien , Tsai Jinn-Tsong
Published: January 2021

A multi-layer convolutional neural network (MCNN) with hyperparameter optimization (HyperMCNN) is proposed for classifying human electrocardiograms (ECGs). For performance tests of the HyperMCNN, ECG recordings for patients with cardiac arrhythmia (ARR), congestive heart failure (CHF), and normal sinus rhythm (NSR) were obtained from three PhysioNet databases: MIT-BIH Arrhythmia Database, BIDMC Congestive Heart Failure Database, and MIT-BIH Normal Sinus Rhythm Database, respectively. The MCNN hyperparameters in convolutional layers included number of filters, filter size, padding, and filter stride. The hyperparameters in max-pooling layers were pooling size and pooling stride. Gradient method was also a hyperparameter used to train the MCNN model. Uniform experimental design approach was used to optimize the hyperparameter combination for the MCNN. In performance tests, the resulting 16-layer CNN with an appropriate hyperparameter combination (16-layer HyperMCNN) was used to distinguish among ARR, CHF, and NSR. The experimental results showed that the average correct rate and standard deviation obtained by the 16-layer HyperMCNN were superior to those obtained by a 16-layer CNN with a hyperparameter combination given by Matlab examples. Furthermore, in terms of performance in distinguishing among ARR, CHF, and NSR, the 16-layer HyperMCNN was superior to the 25-layer AlexNet, which was the neural network that had the best image identification performance in the ImageNet Large Scale Visual Recognition Challenge in 2012.
Disturbance learning controller design for unmanned surface vehicle using LSTM technique of recurrent neural network
Authors: Jeong Sang-Ki , Ji Dea-Hyeong , Oh Ji-Youn , Seo Jung-Min , Choi Hyeung-Sik
Published: January 2021

In this study, to effectively control small unmanned surface vehicles (USVs) for marine research, characteristics of ocean current were learned using the long short-term memory (LSTM) model algorithm of a recurrent neural network (RNN), and ocean currents were predicted. Using the results, a study on the control of USVs was conducted. A control system model of a small USV equipped with two rear thrusters and a front thruster arranged horizontally was designed. The system was also designed to determine the output of the controller by predicting the speed of the following currents and utilizing this data as a system disturbance by learning data from ocean currents using the LSTM algorithm of a RNN. To measure ocean currents on the sea when a small USV moves, the speed and direction of the ship’s movement were measured using speed, azimuth, and location (latitude and longitude) data from GPS. In addition, the movement speed of the fluid with flow velocity is measured using the installed flow velocity measurement sensor. Additionally, a control system was designed to control the movement of the USV using an artificial neural network-PID (ANN-PID) controller [12]. The ANN-PID controller can manage disturbances by adjusting the control gain. Based on these studies, the control results were analyzed, and the control algorithm was verified through a simulation of the applied control system [8, 9].
Iterative learning control of an inverse novel ball screw transmission system
Authors: Hsieh Wen-Hsiang , Chen Yi-Syun , Wu Shang-Teh
Published: January 2021

Iterative Learning Control is a branch of intelligent control which combines artificial intelligence and control theory. This objective of this study aims at reducing the cyclic error of an inverse ball screw transmission system by using iterative learning control approach. Firstly, kinematic and dynamic analyses are conducted by using the vectorial loop closure and Lagrange equations, respectively. Then, system identification is performed followed by controller design. Moreover, controller parameters are optimized to minimize the error. Finally, the feasibility and the effectiveness of the proposed approach are verified by computer simulation and prototype experiment. The experimental results showed that the reducing percentage of the square error sum of the output speed is 90.64% by using PID control only. If ILC is applied additionally, the error is further reduced to 94.21%. Therefore, the proposed approach is not only feasible and but also effective.
The association between the use of efavirenz and the occurrence of depressive disorders among HIV-treated patients: An application of Bayesian cox regression
Authors: Lai Yi-Horng
Published: January 2021

OBJECTIVES: Efavirenz therapy plays an important role in controlling the progression of HIV/AIDS. However, efavirenz often causes short-term side effects for the central nervous system, and it remained controversial as to whether efavirenz leads to depression or even suicidal attempt when applied for a longer period of time. The purpose of this study is to determine the association between the use of efavirenz and depressive disorders. METHODS: This study explored the use of efavirenz on HIV-infected patients using National Health Insurance Research Database (NHIRD) in Taiwan by Bayesian survival analysis and investigated whether the use of efavirenz has the risk of depressive disorders. To reduce the dependence of statistical modeling assumptions, this study applied propensity score matching to research data. RESULTS: Based on the result of this study, it can be found that the use of efavirenz (HR = 1.009, 95% CI=–0.505 0.554), gender (HR = 0.324, 95% CI = –2.544 0.381) were not significantly associated with the occurrence of depressive disorders, whereas age of HIV diagnosis (HR = 1.021, 95% CI = 0.011 0.055) was significantly associated with the occurrence of depressive disorders. This study concludes that the use of efavirenz does not in-crease the risk of depressive disorders among HIV-treated patients. CONCLUSIONS: For the care of HIV-infected patients (especially the older ones), the psychological harm from society, such as lack of social support, social stigma or unemployment is higher than the harm of medicine.
Deep convolutional neural networks for human movement detection using wireless signals
Authors: Lee Chien-Cheng , Gao Zhongjian , Huang Xiu-Chi
Published: January 2021

This paper proposes a Wi-Fi-based indoor human detection system using a deep convolutional neural network. The system detects different human states in various situations, including different environments and propagation paths. The main improvements proposed by the system is that there is no cameras overhead and no sensors are mounted. This system captures useful amplitude information from the channel state information and converts this information into an image-like two-dimensional matrix. Next, the two-dimensional matrix is used as an input to a deep convolutional neural network (CNN) to distinguish human states. In this work, a deep residual network (ResNet) architecture is used to perform human state classification with hierarchical topological feature extraction. Several combinations of datasets for different environments and propagation paths are used in this study. ResNet’s powerful inference simplifies feature extraction and improves the accuracy of human state classification. The experimental results show that the fine-tuned ResNet-18 model has good performance in indoor human detection, including people not present, people still, and people moving. Compared with traditional machine learning using handcrafted features, this method is simple and effective.