bluuebunny/crossref_metadata_2025 huggingface dataset:
Design Centrado no Usuário: Uso do User-Capacity Toolkit na obtenção de dados de sujeito com Artrite Reumatoide
Authors: Fernandes de Andrade Allisson José , Schmidt Alves Díaz Merino Giselle , Díaz Merino Eugenio Andrés , Forcelini Franciele , Triska Ricardo
Published: October 2020

A Artrite Reumatoide (AR) é uma doença crônica de origem autoimune, que atinge em sua maioria mulheres de 40 a 70 anos de idade. Pensando no bem-estar e qualidade de vida dessa população, e na busca pela satisfação das necessidades humanas, a pesquisa em questão possui o objetivo de levantar as capacidades/limitações físicas e cognitivas de um sujeito com AR por meio do User-Capacity Toolkit (UCT). Este conjunto de ferramentas visa guiar as etapas de levantamento, organização e análise de dados em projetos de Tecnologia Assistiva (TA). Os resultados demonstram que as principais limitações do sujeito estão relacionadas a realização de atividades simples da vida diária, devido à redução da força e destreza causadas pela AR. Essas dificuldades reduzem a autonomia do sujeito, que acaba necessitando do auxílio de outra pessoa. Contudo, torna-se evidente a necessidade de TAs que possam reduzir essa dependência, possibilitando autonomia, conforto e segurança ao usuário.
Algumas relações entre design, espaço e mediação
Authors: Dos Santos Fátima Aparecida , Cobbe Maass Marisa , Camara Rogério
Published: October 2020

A linha de pesquisa Design, Espaço e Mediações, vinculada ao PPG Design da UnB, propõe reflexões voltadas ao cotidiano e à configuração do espaço compreendendo seus aspectos culturais. Considera-se o campo do design em fricção com territórios, com os modos de vida e ações políticas. Os aspectos culturais e ecológicos são base para estudos do design enquanto linguagem. Pensa-se a cidade em sua multiplicidade de territórios, também como espaço construído e imaginado, lugar da cristalização de velhos modelos e hábitos, no qual reside a disponibilidade para o sonho, a inovação, a utopia, abordados na linha a partir das fricções entre poética, design e espaço urbano. Considera-se ainda o papel educativo de tal linguagem modelar, as diversas possibilidades de informar disponíveis na urbe e que podem ser potencializadas por artefatos de design. Assim pretende-se uma cidade cujos artefatos de design, sistêmicos, formais, sinaléticos busquem o processo de emancipação e coparticipação educativa.
Incidencia de la inflación en el crecimiento económico de México
Authors: Rodríguez Benavides Domingo , López-Herrera Francisco , Perrotini Hernández Ignacio
Published: October 2020

En este artículo analizamos las relaciones entre el crecimiento económico y su volatilidad, el crecimiento económico y la incertidumbre inflacionaria y el vinculo entre inflación y la incertidumbre inflacionaria de enero de 1993 a marzo de 2018 mediante un enfoque poco convencional en la literatura empirica sobre el tema: el enfoque de cópulas. Los resultados sugieren que mayores niveles de volatilidad del crecimiento económico están asociados con tasas de crecimiento más elevadas. Mientras que para el crecimiento económico y la incertidumbre inflacionaria la asociación es positiva pero no tan fuerte de acuerdo al parámetro de interés estimado. De igual forma, encontramos evidencia mixta para la relación entre incertidumbre del crecimiento económico e inflación en México. Además, la cópula estimada para la relación entre la inflación y la incertidumbre inflacionaria mostró una relación de dependencia en la cola superior, lo cual sugiere que la relación positiva entre estas variables ha sido más fuerte en los periodos en los que se incrementó la inflación.
Los mercados laborales, pobreza y desigualdad en México, un enfoque de derechos humanos
Authors: Reyes Hernádez Miguel Santiago , Teruel Belismelis Graciela , Cerón Vargas José Arturo
Published: October 2020

El artículo vincula los mercados laborales al análisis del bienestar y la pobreza en México desde un enfoque de derechos. El bienestar es identificado a través de una conjunción del enfoque de derechos con el de necesidades desde una perspectiva multidimensional, utilizando el Método de Bienestar Socioeconómico (MBS) de Reyes y López (2016). Para pobreza, se utiliza la metodología multidimensional de pobreza del Consejo Nacional de Evaluación de la Política de Desarrollo Social (CONEVAL, 2009). Con ambas mediciones se obtienen las brechas de bienestar, derechos y pobreza. Se encuentra evidencia de que contar con seguridad social es garante de un mayor bienestar, menor vulnerabilidad y pobreza. La reducción en algunas de las Necesidades Insatisfechas (Bienestar) y carencias sociales (Pobreza-CONEVAL), no es todavía suficiente para reducir la brecha en bienestar e incidencia de pobreza y vulnerabilidad entre trabajadores con y sin seguridad social.
Operational risk and family business elements
Authors: Rivas-Aceves Salvador , Dávila-Aragón Griselda , Castillo-Ramírez Claudia Estrella
Published: October 2020

Operational Risk has been one of the most important risks to be regulated nowadays among companies. There are several factors that can impact this kind of risk; one of them is Family Business elements. By using a Bayesian framework these elements were taken into account to defined possible causality relations between them and operational risk. In order to so a set of Mexican family companies with different sizes were considered, a set of experts from those companies was selected, Family Business elements that might impact were defined and a Bayesian Network for each type of company was characterized. Results are: 1) There are family business theoretical elements that impact on Operational risk, 2) The higher the presence of family elements within companies the lower the Operational Risk is, 3) There is an specific organizational structure depending on a company size that is in accordance with an specific Bayesian Network for measuring Operational Risk when Family Business elements are considered.
Análisis de la inclusión financiera: oportunidades para el desarrollo del sector financiero mexicano
Authors: Gaxiola Laso Selene Rocío , Mata Mata Leovardo , Valenzuela Reyes Pablo Raúl
Published: October 2020

En este trabajo se analiza el efecto de diversas variables socioeconómicas sobre el grado de inclusión financiera en México. Para ello, se emplean los modelos de probabilidad logit y probit, así como un modelo de regresión lineal robusta. Mediante la información de la Encuesta Nacional de Inclusión Financiera 2012 y 2015 se estima la magnitud del impacto positivo que tienen las remesas, la educación y el ingreso por salarios, lo cual confirma la ruta que debe seguirse para impulsar la inclusión financiera en México.
PENGATUR LAMPU LALU LINTAS SISTEM DIGITAL BERBASISKAN MIKROCONTROLER
Authors: Suryadi Suryadi
Published: October 2020

traffic light still uses analog system with discrete component. This technology has many disadvantages for example difficulty in maintenance and repair, display only to lamp without counter and no control for delay in normal hours or rush hours. These can be cause traffic jam and accident. To solve this problem, traffic light system is completed by digital system and buzzer using microcontroller AT89C51. The observation result to prototype at laboratory in Polytechnic State of Padang show this system can be implemented to real condition.
PERENCANAAN INVERTER PWM SATU FASA UNTUK PENGATURAN TEGANGAN OUTPUT PEMBANGKIT TENAGA ANGIN
Authors: Herisajani Herisajani , Harun Nasrul , Yunus Dasrul
Published: October 2020

Inverter as power circuit is used to change DC to AC voltage. In general, DC which can be changed by inverter is DC voltage with constant value, for example battery or accu. Inverter is design to changed non constant DC voltage which produced by wind power generator become constant ac voltage. In changing process from non constant DC voltage to constant AC voltage is controlled by microcontroller to simplify the design of inverter.
PENDETEKSIAN KERUSAKAN MODUL PADA TRANSMISI SATELIT PT. TELKOM RO PADANG MENGGUNAKAN BORLAND C++
Authors: Rafsyam Yenniwarti , Jonifan Jonifan
Published: October 2020

Detection of module damage at satellite transmission designed to be able to detect damage of transmission equipment especially at satellite transmission of PT. Telkom RO Padang. Module detected is a modem IDR (CDM 550). The system is an output of modem that will be an input at PC where its detection using interface RS-232 and C++. So that, from communications between modem with PC resulting file error.txt. That file containing of damage status from modem. This Simulation expected to help the technician to detect the damage at satellite transmission equipment. This system more economical and give the best services to customers.
PENGATURAN PORTAL PADA PENGURUTAN PARKIR MOBIL DENGAN MENGGUNAKAN RFId DAN PC
Authors: Susanti Roza , Bakhtiar Budhi
Published: October 2020

The number of vehicles increasing day by day. It will trigger the demand of parking area, especially for car park. To overcome this problem, we offer a solution, by creating a miniatur car parking. This Car park  only for members whose can park their car in it. Each car will be equiped by a RFId tag (RFid card) and the RFId sensor (Radio Frequency Identification) which will detecting this card . The main function of the RFid card is to detecting every car come and go from the car parking area. The data are readed from the card need to be checked and verified with the database of  member identification (Id) by using Visual Basic 6.0 as the interface. The serial port RS 232 used as the interface to connect  RFId sensor and Personal computer. The program in AT89S51 microcontroller will control the motor rotation for opening or closing the parking area gate.
KLASIFIKASI CITRA MAMOGRAFI MENGGUNAKAN JARINGAN SYARAF TIRUAN
Authors: Susilawati Indah
Published: October 2020

There are abnormalities in breast tissue which can be detected by mammogram images analysis. One of those abnormalities is microcalcification. Microcalcifications are small calcium deposits in the breast tissue that can be seen only on a mammogram and can be an indicator of breast cancer. The main objective of this research is to automatically recognize the pattern of two types of breast tissues, i.e. normal tissue and breast tissue which contain microcalcifications in digital mammograms using Matlab software tools.  In this research, pattern recognition is carried out using Artificial Neural Network (ANN), i.e. LVQ (Learning Vector Quantization). The pattern recognition is formulated as a supervised-learning problem and classification was based on six-feature input given to the ANN. The system recognizes the pattern in three steps. Firstly, a tophat transformation is applied on the images, and then features of the images are extracted based on images pixel values. Finally, image classification is carried out in recognizing the pattern. The research uses 26 digital mammograms, consist of 16 normal mammograms and 10 mammograms which contain microcalcifications. The results show that the LVQ best performance in recognizing the pattern is 97%, using learning rate and decrement of learning rate equal to 0.1.
Rancang Bangun Alat Penghancur Green Bean Coffee Otomatis Berdasarkan Berat Berbasis Load Cell dan Mikrokontroler
Authors: Suryadi Suryadi , Angraini Tuti , Mahendra Wahyu Esa
Published: October 2020

Daerah dataran tinggi dan gunung merupakan daerah yang cocok untuk pertanian tanaman kopi yang mana tanaman kopi yang akan menghasilkan kualitas baik ditanam diketinggian 1000 meter diatas permukaan laut. Gunung Sago yang memiliki ketinggian 2571 Mdpl yang terletak di Kabupaten 50 Kota tepatnya di daerah situjuah merupakan tempat penghasil kopi di kawasan Sumatera Barat. Biji kopi hijau atau disebut juga green bean coffee merupakan biji kopi yang tidak melalui proses penyangraian atau roasting. Kopi hijau memiliki banyak khasiat untuk kesehatan tubuh terutama orang yang ingin menurunkan berat badan karena khasiat kopi hijau dapat membakar lemak karena mengandung asam kloregenat yang lebih tinggi dibanding kopi hitam yang sudah disangrai. Pada alat penghancur green bean coffee ini menggunakan load cell sebagai pembaca berat hasil penghancuran green bean coffee dan keypad sebagai masukan input data berapa penghancuran yang diinginkan, modul relay sebagai on / off motor 1 phasa sebagai penggerak penghancur green bean coffee dan LCD sebagai penampil hasil berat green bean coffee.
Merancang Sistem Pengukuran Redaman Transmisi Kabel Optik Single Mode Jenis Pigtail
Authors: Asril Aprinal Adila , Yustini Yustini , Herwita Putri Azizah
Published: October 2020

Optical fiber is a transmission channel made of glass or plastic that is used to transmit light signals from one place to another. Optical fibers, in general, have a basic structure consisting of a fiber core, a fiber coating (cladding), and a protective layer (coating) consisting of an inner jacket. This research discusses the design of the attenuation of the fiber optic transmission measurement system by connection factor. Optical fiber cable used in this research is pigtail type cable with single-mode cable type. The cable used is 10 meters long, which will be installed in the Optical Termination Box. In the Optical Termination Box there are 6 pigtail cables, which are without connections, with a 6 cm sleeve protection one connection and two connections, also with a 4 cm sleeve protection one connection and two connections, then use a barrel adapter. In this design testing tools use Light source, Optical Power Meter, and Optical Time Domain Reflectometer). The attenuation value after testing on the protection sleeve 6cm; 12,330 dB, then the attenuation on the protection sleeve is 4cm; 12,729 dB. Then attenuation on the barrel adapter; 12,954 dB
Alat Pengatur Takaran Pakan Ikan Otomatis menggunakan metoda fuzzy dengan sensor suhu dan pH
Authors: Hidayat Anton
Published: October 2020

Busy activities such as work, out of town, holidays with family make it difficult to feed fish done well because farmers can not always be near the pond. In addition to the erratic weather that can reduce the quality of pond water so that the dose of feed must be adjusted again from the normal dose. Fish feed can be done automatically by making feeder equipment scheduled and measured using RTC, keypad and LCD as an interface with the user. And measured using a screw rotation and encoder in order to know the number of thread rotation is done. After testing, it was found that this tool can provide fish feed on schedule with an average dose of 302.6 g per 100 thread turns with a lot of feed errors coming out by 1.03% in an interval of 5.77 seconds.
RANCANG BANGUN SISTEM INFORMASI BATAM DIRECTORY MENGGUNAKAN METODE BACKWARD CHAINING BERBASIS MOBILE
Authors: Hamsir Hamsir , Nurcahyo Gunadi W , Defit Sarjon
Published: October 2020

This article is designed for an information system in the form of expert system applications to present information on Batam Directory. The purpose of this system is to help provide information about the city of Batam as a whole to the residents of Batam city in particular and thelocal and foreign tourists as well as prospective investors in general. The system presents information in the form of public service to the residents of Batam city government and other newcomers as well as products and services are made ​​and offered by the business and government. The analysis was done by determining the first goal, then do these arching to obtain the desired information. The design system uses backward chaining inference method to the implementation ofthe system using My-SQL database systems and programming languages​​ of PHP and JQuery. The system is based on mobile, so it can be accessed using a mobile device.
PENGARUH PENYEIMBANGAN BEBAN TRAFO DISTRIBUSI TERHADAP ARUS NETRAL
Authors: Yondri Surfa , Artono Tri , Sari Hengki Purnama
Published: October 2020

Load balancing is load balancing activities in each phase distribution transformers are not balanced, the goal to reduce the magnitude of the neutral current transformer because inequality between phases. This activity was done by measuring each phase transformer load, calculate the average current in each phase, and shifted the burden of heavily loaded phase to phase which has a lot fewer burdens. Load balancing is done on a regular basis every 6 months. PT. PLN (Persero) Rayon Bukittinggi perform load balancing on the distribution transformer substation 100 KVA Distribution Tabek Gadang Tower 2 times on Wednesday, 15th May 2013 at 19:30 pm and Thursday, 16 May 2013 at 19:30 pm. First, by moving the load phase T to phase S at 18 A. Second, by moving the burden from phase to phase R T at 9 A. and load phase T to S phase by 11 A. load balancing distribution transformers 100 KVA Substation Tabek Gadang Tower is near parity with the transformer neutral currents in 14.18 A.
PENGUATAN SINYAL GLOBAL SYSTEM FOR MOBILE COMMUNICATION (GSM) 900 MHz MENGGUNAKAN ANTENA GRID
Authors: Yuhanef Afrizal
Published: October 2020

The antenna is a device used to transmit or receive electromagnetic waves electromagnetic waves. Reception using an antenna will amplify the signal acquisition in accordance with the ability of the antenna itself. Service providers GSM (Global System Mobile), with the inclusion of the network limitations make the need for strengthening the acquisition of the signal is very large. Grid antenna is one option reinforcement signal acquisition. Grid antenna has a major component that is driven in the form of a dipole and a reflector which serves to reflect the signal beam.  In this final project is designed, realized and measured at the antenna grid on GSM 900 MHz. This antenna is intended to be a media aids in strengthening the GSM signal reception to maximize the signal acquisition and connections
PEMETAAN JARINGAN DISTRIBUSI (SUTM) 20 kV DAN PERKIRAAN KEBUTUHAN LISTRIK DI KECAMATAN PAYUNG SEKAKI, KABUPATEN SOLOK
Authors: Yondri Surfa , Witrionanda Witrionanda , Fadly A
Published: October 2020

Payung Sekaki district is one of the area in Solok Region that needs the development of electricity network.  To support its development plan, the real condition of Payung Sekaki district should be known. The mapping method is one of the way to know the already implemented electricity area.Based on the mapping result, it is known that the electricity network of SUTM 20 kV at Payung Sekaki district has been implemented in Sikrukam area and Supayang area and not yet in Aie Luo area. The estimation method of electricity needs at Payung Sekaki district is motivated to get information on its development based on economic and population growth. Data processing results using SPSS show that the eletricity needs at Payung Sekaki district from 2013 to 2014 will dramatically increase followed by the increasing of economic growth in spite of population growth is still remain the same.
PERANCANGAN MULTIMEDIA PEMBELAJARAN INTERAKTIF DENGAN MENGGUNAKAN APLIKASI FLASH
Authors: Zurnawita Zurnawita
Published: October 2020

The rapid development of multimedia technology can be utilized by the world of education, particularly in improving the way of learning to the learning process can be developed and not left behind by technological advances. In this research the development of multimedia applications in education. This application provides an interactive material with animation, audio, video and comes with an evaluation form about the exercises. Results will be achieved of the media making this learning is that students can understand subjects of digital system. It is expected that these applications can facilitate the learning process improve the quality of teaching and learning achievement
Implementasi Persamaan Kinematik Maju Pada Robot Manipulator
Authors: Herizon Herizon , Diana Ade
Published: October 2020

Robot is one technology that is being developed at this time. Robot manipulators are widely used in industry, especially robotic arm that has a certain degree of freedom. The problems that occurred in the robot arm is the accuracy in determining the position of the object to be moved. This study aims to apply the method forward kinematics equation modeling on the movement of the robot manipulator in particular robot arm 3 degrees of freedom (DOF) equipped with a gripper which serves to clamp and move the object. The method used in this study is an experimental method in phases: the design of hardware and software, interconnect hardware and software in the system of movement of the robot. Joints actuator using servo motors. Manipulator control system is used to adjust the angular position of each joint with CodeVisionAVR programming language that is sent in parallel to the motor driver so as to produce pulses to move the bike. Forward kinematics equation modeling using trigonometric equations. Forward kinematics modeling applications on the movement of the robot arm that is used to provide information about the value of the angle and the coordinates of each joint. Results of testing the hardware controlled by software to show the error (error) the movement of each joint is varied by between 0.06% - 2.567%.
Prototype Penghitung Jumlah Pengunjung Yang Berada Di Dalam Kebun Binatang Berbasis Mikrokontroler
Authors: Chandranata Adi , Albar Albar , Ahmad Ibnu Sutowo
Published: October 2020

Alat ini bekerja untuk meringankan tugas dari petugas kebun binatang. Alat ini juga dapat mencegah kesalahan dalam penghitungan jumlah pengunjung yang sering dilakukan oleh manusia. Alat ini mampu menghitung pengunjung masuk dan keluar serta yang berada di dalam kebun binatang  dengan ditampilkan pada satu LCD. Tampilan penghitungan jumlah pengunjung terbatas hanya sampai 999. Alat penghitung jumlah pengunjung ini bekerja secara otomatis menghitung jumlah pengunjung yang masuk dan keluar dari kebun binatang. Photodioda 1 dan sensor sentuh 1 berfungsi untuk menghitung pengunjung yang memasuki kebun binatang. Photodioda 2 dan sensor sentuh 2 berfungsi untuk menghitung pengunjung yang keluar dari kebun binatang. Penampilan jumlah pengunjung yang masuk serta keluar akan di tampilkan pada LCD 2x16. Semua sensor dan penampilan di proses oleh mikrokontroller. Untuk menghitung jumlah pengunjung yang masih berada di dalam kebun binatang digunakan rumus “jumlah pengunjung masuk-jumlah pengunjung keluar”, jumlah pengunjung yang berada di dalam kebun binatang juga akan ditampilkan dengan LCD 2x16. Dari semua pengujian eror yang terjadi adalah 0% atau tidak terjadi eror selama pengujian. Dengan menggunakan LCD 2x16 maka tampilan untuk jumlah pengunjung yang masuk dan keluar terbatas, yaitu hanya sampai 999 orang.
Prototype Pendeteksi Kebocoran Gas LPG Pada Gudang Penyimpanan Gas LPG Berbasis Mikrokontroler
Authors: Albar Albar , Joi Ifni , Helmudyra Rozi
Published: October 2020

Tujuan dilakukannya penelitian ini adalah membuat sebuah alat yang dapat mendeteksi kebocoran gas LPG pada gudang penyimpanan gas LPG. Alat yang dibuat menggunakan arduino sebagai kontroller dan sensor MQ-2 untuk mendeteksi kebocoran gas LPG. Modul GSM sim800L berfungsi mengirimkan sms kepada operator jika mendeteksi gas LPG di udara. Hasil pengujian menunjukkan sensor mendeteksi adanya gas LPG, tegangan output sensor sebesar 0.95 Vdc.Saat sensor tidak mendeteksi gas LPG tengan output sensor sebesar 0,35 Vdc. Sim800L membutuhkan tegangan Vcc sebesar 5 Vdc untuk dapat berfungsi. Pin TX memiliki tegangan 4,2Vdc untuk mengirimkan SMS dengan kondisi ada bahaya gas dan 4,4 Vdc saat SMS tidak terkirim.
Analisa Faktor Resiko Construction Waste pada Proyek Konstruksi di Kota Padang
Authors: Natalia Monika , Partawijaya Yan , Mirani Zulfira
Published: October 2020

Waste atau disebut juga  nonvalue-adding activity adalah semua aktivitas yang tidak memberikan nilai tambah dimata customer pada suatu produk yang diproses (Hines dan Taylor, 2000). Tujuan penelitian ini adalah melakukan identifikasi waste yang terjadi pada proyek konstruksi di Kota Padang.

Metode Penelitian yang digunakan analisis deskriptif menggunakan quisioner dengan data proyek konstruksi yang sedang atau sudah dikerjakan di Kota Padang. Adapun respondennya adalah proyek manager, site manager, site engineer, quality control, supervisor, pelaksana lapangan dan pengawas lapangan. Dari quisioner yang kembali, dilakukan pengujian data dengan menggunakan SPSS. Pengujian data meliputi uji validasi, uji reliabilitas dan uji korelasi. Selanjutnya dilakukan analisis regresi linier variabel berganda, yang bertujuan untuk mengetahui factor-faktor yang berpengaruh besar terhadap waste. proyek konstruksi di kota Padang.

Quisioner yang disebarkan sebanyak 25 quisioner. Response rate 100%. Dari data penelitian terdapat 7 faktor dengan 44 variabel. Hasil uji validasi, didapatkan 5 faktor dan 37 variabel yang valid. Hasil uji reliabilitas, teridentifikasi 5 faktor dengan 14 variabel yang reliable. Hasil uji korelasi, semua variable reliable juga terkorelasi dengan kuat.  Analisa regresi dilakukan dengan uji R2, uji F dan uji t. Dari hasil uji R2, didapatkan besarnya kontribusi 14 variabel terhadap waste konstruksi  sebesar 91,6%. Hasil uji F memperlihatkan secara simultan semua variabel  mampu menjelaskan hubungannya terhadap penyimpangan biaya dengan sangat baik. Hal ini ditunjukkan oleh signifikasi < 5%. Hasil dari uji t, teridentifikasi 5 faktor dengan 8 variabel yang signifikan. Variabel tersebut adalah adalah waktu menunggu revisi gambar/perubahan desain sebesar 0,782,  mutu pengawasan rendah sebesar 0,430, kesalahan pada saat pelaksanaan pekerjaan sebesar 1,957, keterlambatan pelaksanaan pekerjaan  sebesar 2,122,  pekerjaan rework dan repair  sebesar 0,556,   perencanaan dan penjadwalan yang buruk sebesar 2,730, perubahan desain sebesar 0,863 dan  cuaca sebesar 0,966. Hasil penelitian ini nantinya diharapkan dapat sebagai bahan pertimbangan untuk semua pihak yang terlibat dalam pelaksanaan proyek konstruksi guna menghindari biaya-biaya tambahan yang tidak diinginkan dan menghindari keterlambatan penyelesaian proyek akibat waste konstruksi.
Conceptual Design of Pedestrian Overpasses Bridge for Vertical Evacuation from Tsunami (POBET) in Padang City – West Sumatra
Authors: Syukri Andi , Yaldi Gusri , Hamid Desmon , Murdiansyah Lukman , Rozaan Aufaa , Roza Afrina
Published: October 2020

Padang City, the most populated city in West Sumatra, is considered to have one of the world’s highest tsunami risks due to its high and close offshore thrust-fault seismic hazard, its flat terrain, and its dense population, which is mostly distributed along the coast. Current preparation for a tsunami in Padang focuses on developing early warning systems, planning evacuation routes, conducting evacuation drills, and educating the public about its tsunami risk. These are necessary, but insufficient, steps. The natural warning in Padang—strong earthquake shaking that lasts over a minute—will be the first and best indicator that a tsunami is likely to strike. It is estimated that even if evacuation begins immediately after the earthquake shaking stops, more than 100,000 inhabitants of Padang will be unable to reach high ground in less than 30 minutes—the expected time between the end of the earthquake shaking and the arrival of the tsunami wave at the shore. Based on Evaluation of Tsunami Evacuation Infrastructure for Padang, West Sumatra, Indonesia (Veronica, et.al: 2011) concluded, based upon extensive fieldwork, that Padang’s existing tsunami evacuation capacity is grossly inadequate, and that tsunami evacuation structures are essential to protect the people of Padang. To maximize their impact and effectiveness, those tsunami evacuation structures should be locally-appropriate, feasible to build and maintain, and easy to replicate. The M7.6 earthquake that struck Padang on September 30, 2009 confirmed this critical need for tsunami evacuation infrastructure. Although the earthquake did not generate a tsunami, it did cause the collapse of many buildings that had previously been identified as satisfactory evacuation structures. The earthquake also triggered massive traffic jams, stranding people in harm’s way and demonstrating why Padang needs structures that enable more people to evacuate-in-place. Finally, it needs to design new structures to accommodate people to evacuate immediately in place. Pedestrian Overpasses Bridge for Vertical Evacuation from Tsunami (POBET) will work effectively for evacuees who get traffic jam during the tsunami inundated elapsed critical hours. The most reason for POBET need to be design is a prototype for the government to combine pedestrian overpasses bridge with vertical evacuation from tsunami. These evacuation infrastructures consider about less for land use, easy to reach, compatible for any infrastructure purposes. Rely on budget and planning, POBET would design with a smallest amount budget and effortless construction process. It can be replicate by the local government to build in any place in Padang City.
Informasi Titik-Titik Likuifaksi akibat Gempa Bumi di Kota Padang
Authors: Liliwarti Liliwarti
Published: October 2020

Padang Sumatera Barat merupakan daerah   rawan   gempa , gempa bumi dapat menimbulkan bahaya likuifaksi yang dapat merusak bangunan dan sarana infrastruktur . Likuifaksi biasanya terjadi pada tanah pasir yang jenuh air, saat terjadi gempa tegangan geser tanah menurun sehingga tanah tidak mampu menahan beban yang diatas dan mengakibatkan bangunan amblas. Dalam makalah  ini disajikan tingkat potensi likuifaksi berdasarkan data  sondir (Cone Penetration Test) di kota Padang. Titik lokasi penyelidikan terdiri dari 9 titik lokasi yang tersebar di kota Padang. Hasil analisa  menunjukkan bahwa pada titik penyelidikan dengan lokasi GOR Haji Agussalim pada kedalaman 5 – 6 meter berpotensi likuifaksi dengan  nilai indek likuifaksi >5. Koto tangah pada kedalaman 3.8 m – 4.4 m berpotensi likuifaksi nilai indek likuifaksi 12.69, dan Sungai sapih berpotensi likuifaksi pada kedalaman 4.8 m dengan nilai indek likuifaksi 5.2. Hos Cokroaminoto, Purus serta Siteba mempunyai potensi yang sangat kecil untuk terjadi likuifaksi. Sedangkan  Ujung Gurun, berpotensi likuifaksi  pada kedalaman 3.5 m – 6m, Lolong berpotensi likuifaksi pada kedalaman 1.4 m – 2m, Chatib Sulaiman berpotensi likuifaksi pada kedalaman 1.2m – 4.8 m.
Faktor Penyebab Kegagalan Akibat Keterlambatan Proyek Konstruksi Pada Bangunan Gedung di Kota Padang
Authors: Riswandi Riswandi , Natalia Monika , Mafriyal Mafriyal
Published: October 2020

Keberhasilan proyek adalah tujuan akhir yang utama dari setiap pelaksanaan proyek konstruksi gedung. Perbedaan keberhasilan proyek disebabkan karena tiap proyek mempunyai faktor-faktor pengaruh yang berbeda-beda. Ada kalanya proyek tidak berjalan lancar sesuai perencanaan awal. Hal ini disebabkan oleh banyak faktor, seperti faktor alam, faktor tenaga kerja, lokasi, material, koordinasi, administrasi dan lain-lain. Faktor-faktor tersebut dapat menjadi permasalahan atau kendala yang menyebabkan tidak lancarnya pelaksanaan proyek konstruksi. Padahal proyek konstruksi harus memenuhi tiga criteria yaitu mutu, biaya, dan waktu (triple constraint) sesuai dengan yang telah ditetapkan.Oleh karena itu, semua pihak yang terlibat dalam proyek konstruksi gedung (owner, konsultan, kontraktor) harus mengetahui faktor-faktor penyebab kendala selama pelaksanaan proyek konstruksi gedung. Dengan diketahuinya faktor-faktor ini, semua pihak yang terlibat dapat menentukan solusi/strategi apa yang harus dilakukan untuk menangani masalah yang timbul di lapangan selama pelaksanaan proyek konstruksi. Dengan diketahui dari awal, dapat diantisipasi sedini mungkin semua kendala/permasalahan yang timbul, dan tidak akan ada pihak yang dirugikan.Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor penyebab kendala kegagalan yang disebabkan oleh keterlambatan pelaksanaan proyek konstruksi di Kota Padang Sumatera Barat.  Metode Penelitian yang digunakan analisis deskriptif menggunakan quisioner dengan data proyek konstruksi yang sedang atau sudah dikerjakan di Sumatera Barat. Adapun respondennya adalah project manager, site manager.Dari quisioner yang dilakukan pengujian data dengan menggunakan SPSS. Pengujian data meliputi uji validasi, uji reliabilitas,uji normalitas uji korelasi,dan uji analisa diskritif. Adapun tujuan dari penelitian ini adalah untuk mengetahui faktor dominan penyebab kendala proyek konstruksi di Kota Padang adapun faktor dominan pada pengujian ini yaitu pada subfaktor jadwal penggunaan material yang terperinci dan tepat waktu (material’s schedule) dengan nilai mean 3,55 atau 87,50 % . Hasil penelitian ini nantinya diharapkan dapat sebagai bahan masukan/pertimbangan dalam mengambil kebijakan  untuk semua pihak yang terlibat dalam pelaksanaan proyek konstruksi agar tercapai keberhasilan proyek.
Kajian Sedimentasi pada Muara Sungai Batang Arau Kota Padang
Authors: Sabrina Tipani Ulfah , Hidayat Taufiq , Hartati Hartati , Umar Zahrul
Published: October 2020

Sungai Batang Arau mempunyai panjang sungai ± 29,72 km dengan luas Daerah Aliran Sungai (DAS) ± 172 km2, hulu sungai berada pada puncak bukit Punggung Lading Kecamatan Lubuk Kilangan dan Gunung Gadut Kecamatan Pauh Kota Padang, dan pada daerah hilir terdapat Pelabuhan Muara. Pelabuhan Muara dibangun pertama kali pada abad ke-17 hingga awal abad ke-20. Saat ini pelabuhan Muara berfungsi sebagai pintu gerbang antar pulau terutama menuju ke Kepulauan Mentawai, Pulau Sikuai, dan sekitarnya, serta kembali lagi ke kota Padang.

Akhir-akhir ini fungsi  pelabuhan di muara sungai Batang Arau tempat keluar masuknya kapal – kapal terganggu karena terjadinya pendangkalan sungai. Ini terjadi karena tingginya tingkat pertambahan penduduk  sehingga mempengaruhi perubahan tata guna lahan dari hutan sekunder, kebun dan sawah menjadi kawasan permukiman, serta bertambah luasnya kawasan tambang batu kapur yang digunakan untuk dasar pembuatan semen oleh PT Semen Padang pada DAS Batang Arau yang mengakibatkan bertambahnya debit puncak run off, meningkatnya erosi dan konsentrasi sedimen di DAS Batang Arau.

Untuk menghitung angkutan sedimen di pelabuhan muara di DAS Batang Arau dilakukan dengan metoda Yang’s dan  metoda Engelund& Hansen. Dari hasil perhitungan yang dilakukan dengan Metode Yang’s didapat hasil 28703,83 ton/tahun dan  dengan Metoda Engelund & Hansen didapat hasil 34587,43 ton/tahun. Dan untuk estimasi tebal endapan  di pelabuhan Muara Batang Arau kota Padang didapat dari hasil kajian angkutan sedimen  yang berdasarkan angkutan sedimen terbesar Metoda Engelund & Hansen hasilnya adalah 21,64 cm per tahun.
Faktor Penyebab Kegagalan Akibat Keterlambatan Proyek Konstruksi Pada Bangunan Gedung di Kota Padang
Authors: Natalia Monika , Riswandi Riswandi , Mirani Zulfira , Partawijaya Yan , Misriani Merley
Published: October 2020

Keberhasilan proyek adalah tujuan akhir yang utama dari setiap pelaksanaan proyek konstruksi gedung. Perbedaan keberhasilan proyek disebabkan karena tiap proyek mempunyai faktor-faktor pengaruh yang berbeda-beda. Ada kalanya proyek tidak berjalan lancar sesuai perencanaan awal. Hal ini disebabkan oleh banyak faktor, seperti faktor alam, faktor tenaga kerja, lokasi, material, koordinasi, administrasi dan lain-lain. Faktor-faktor tersebut dapat menjadi permasalahan atau kendala yang menyebabkan tidak lancarnya pelaksanaan proyek konstruksi. Padahal proyek konstruksi harus memenuhi tiga criteria yaitu mutu, biaya, dan waktu (triple constraint) sesuai dengan yang telah ditetapkan.Oleh karena itu, semua pihak yang terlibat dalam proyek konstruksi gedung (owner, konsultan, kontraktor) harus mengetahui faktor-faktor penyebab kendala selama pelaksanaan proyek konstruksi gedung. Dengan diketahuinya faktor-faktor ini, semua pihak yang terlibat dapat menentukan solusi/strategi apa yang harus dilakukan untuk menangani masalah yang timbul di lapangan selama pelaksanaan proyek konstruksi. Dengan diketahui dari awal, dapat diantisipasi sedini mungkin semua kendala/permasalahan yang timbul, dan tidak akan ada pihak yang dirugikan.Penelitian ini bertujuan untuk mengidentifikasi faktor-faktor penyebab kendala kegagalan yang disebabkan oleh keterlambatan pelaksanaan proyek konstruksi di Kota Padang Sumatera Barat.  Metode Penelitian yang digunakan analisis deskriptif menggunakan quisioner dengan data proyek konstruksi yang sedang atau sudah dikerjakan di Sumatera Barat. Adapun respondennya adalah project manager, site manager.Dari quisioner yang dilakukan pengujian data dengan menggunakan SPSS. Pengujian data meliputi uji validasi, uji reliabilitas,uji normalitas uji korelasi,dan uji analisa diskritif. Adapun tujuan dari penelitian ini adalah untuk mengetahui faktor dominan penyebab kendala proyek konstruksi di Kota Padang adapun faktor dominan pada pengujian ini yaitu pada subfaktor jadwal penggunaan material yang terperinci dan tepat waktu (material’s schedule) dengan nilai mean 3,55 atau 87,50 % . Hasil penelitian ini nantinya diharapkan dapat sebagai bahan masukan/pertimbangan dalam mengambil kebijakan  untuk semua pihak yang terlibat dalam pelaksanaan proyek konstruksi agar tercapai keberhasilan proyek
Kinerja Marshall Immersion pada Campuran Asphalt Concrete Wearing Course (AC-WC) dengan Penambahan Cangkang Sawit sebagai Substitusi Agregat Halus
Authors: Mukhlis Mukhlis , Lusyana Lusyana , Suardi Enita , Adibroto Fauna
Published: October 2020

Asphalt concrete wearing courses (AC-WC) are asphalt mixtures which consist of coarse and fine aggregates plus fillers which have a continuous gradation with asphalt binder. In general, the aggregates in the AC WC mixtures consist of natural rock materials which are broken down and in certain areas the availability is limited so it must be imported from other regions. This resulted in relatively high prices from the asphalt mixture. This can be anticipated by looking for alternative aggregate substitute materials, one alternative is to use palm oil shells.

In this test, palm shells were used as a substitute for fine aggregates with variations in percentage of palm shells, namely 0%, 5%, 10%, 15%, 20%, 25%, the tests were carried out namely the testing of volumetric characteristics, Marshall characteristics, determination of optimum asphalt content and Marshall immersion. From the results of the study obtained the value of Marshall Immersion decreases as the percentage of palm shells increases in the mixture.
Analisis Rework Factor pada Pelaksanaan Proyek Gedung di Kota Padang Tahun 2019
Authors: Hamid Desmon , Alamsyah Takdir , Wijaya Yan Parta , Mirani Zulfira , Suhanda Oktaryan Arla
Published: October 2020

Suatu proyek dikatakan sukses apabila minimal memenuhi empat faktor, antara lain adalah proyek berjalan sesuai jadwal kontrak, mendapatkan keuntungan karena pengeluaran sesuai dengan yang direncanakan, masalah yang terjadi dalam proyek kecil, dan tidak terjadi kecelakaan kerja. Jika teknis yang digunakan kurang baik maka akan berdampak buruk pada kinerja proyek dan dapat menimbulkan kerugian dari segi biaya, mutu, dan waktu. Salah satu kerugian yang ditimbulkan pada pelaksanaan proyek konstruksi disebabkan oleh karena adanya pengerjaan ulang (rework).

Tujuan penelitian ini adalah untuk mengetahui faktor-faktor yang menjadi penyebab rework dan faktor dominan apa saja yang menjadi penyebab rework  pada pelaksanaan proyek gedung di Kota Padang tahun 2019. Penelitian ini menggunakan instrumen kuesioner yang melibatkan 22 orang responden, terdiri dari 11 perusaaan kontraktor dan masing-masing perusahaan terdapat 2 orang responden yaitu project manager dan site manager. Uji yang dilakukan meliputi  uji validitas, reabilitas, korelasi Pearson Product Moment dan analisis deskriptif berdasarkan nilai mean dengan bantuan program Statistical Package for Social Science (SPSS) for Windows version 24.0.

Penelitian ini mengidentifikasi 5 faktor penyebab terjadinya rework: faktor manajerial, faktor metoda pelaksanaan konstruksi, faktor material, faktor sumberdaya manusia dan faktor site conditions. Hasil penelitian menunjukkan bahwa faktor paling dominan penyebab rework adalah faktor manajerial, pada sub faktor kurangnya kerja sama tim (teamwork) sehingga hasil konstruksi tidak sesuai dengan kontrak (X1.4) dengan nilai mean 4.32 dan persentase sebesar 86.64 %.
Analisa Ketersediaan Tanah (Land Banking) Untuk Perumahan Dan Pemukiman Dengan Sistem Informasi Geografis Di Kabupaten Tanah Datar
Authors: Alfansyuri Era , Amri Syaiful , Farni Indra
Published: October 2020

Salah satu permasalahan dalam penyediaan perumahan bagi masyarakat adalah belum tersedianya lahan yang tepat untuk lokasi pemukiman dan perumahan. Tanah merupakan salah satu elemen penting dalam program pembangunan infrastruktur maupun perumahan. Dengan memanfaatkan analisa sistem informasi geografis untuk menentukan ketersediaan tanah (land banking) dan lokasi untuk kawasan perumahan dan pemukiman di Kabupaten Tanah Datar berdasarkan kriteria dan kesesuaian terhadap rencana pola ruang dan daerah negative list. Dari analisa spasial sistem informasi geografis diperoleh sebaran ketersedian tanah untuk pemukiman dan perumahan sebesar 17,71% dari daya dukung lahan yang tersedia.

 

Kata kunci : Ketersediaan tanah, Negatif list, Sistem Informasi Geografis
Investigasi Ketersediaan Air Permukaan Sungai Kapur Solok Selatan Untuk Kebutuhan Air Baku
Authors: Zufrimar Zufrimar , Zainal Edwina
Published: October 2020

South Solok Regency with a population of more than 163,000 people, 62.3% without access to clean water services through the Domestic Water Company (PDAM). The number of PDAM customers has been changed in Solok Selatan Regency in the last five years. Since the water capacity is very limited which means it difficult to increase the number of customers, so it is predicted to be unable to meet the increasing need for clean water. Based on the study of the potential for raw water availability in the South Solok Regency, Sungai Kapur has the potential as a source of raw water. To complete the potential study, it is necessary to know the quantity of raw water by examining hydrological parameters to optimize the planning of water resources potential. The quantity of raw water is assessed by the dependable flow to determine the low flow characteristic. Based on calculations, obtained a reliable discharge of 90% in monthly that can be used as raw water. The raw water source used has a discharge of ± 138.6 l / sec. However, the availability is uneven throughout the month, so a reservoir is needed to guarantee the availability of raw water for residents. In addition, raw water quality is assessed in terms of physical, chemical, and biological aspects. The results of the raw water quality test in the Sungai Kapur are eligible for raw water based on Government Regulations No. 82, 2001
Konten Analisis Kriteria Green Road pada Dokumen Kontrak Konstruksi Jalan Kota Payakumbuh
Authors: Nahar Rahmad Aulia , - Yossyafra , Adji Bayu Martanto
Published: October 2020

Road construction has negative side effects on the environment, including reduced non-renewable natural resources, increased emissions, construction waste, reduced productive land and damaged ecosystems. To minimize this problem environmentally friendly efforts are needed in the implementation of road construction. One of the efforts made is to use the concept of greenroad. This concept can be applied at every stage of the implementation of road construction, especially at the stage of road construction and maintenance. This study aims to assess the application of greenroad criteria in construction contract documents using the Content Analysis method. While the case study examined is the Payakumbuh City Road Rehabilitation / Maintenance Contract document in 2016, 2017 and 2018 with a contract value above four billion rupiah. Greenroad assessment criteria use PUPR Minister Circular Number 04/SE/M/2018 concerning GreenRoad Ranking Guidelines. In this guide the assessment of greenroads is grouped into five categories, 35 subcategories and 84 criteria. The categories are Conservation of environment, water, air and nature (KL), Provision of transportation and community (TM), Construction implementation activities (AK), Use of materials and natural resources (MS), Pavement technology (TP). The criteria contained in each subcategory have a weighted value. The maximum total value possible in this scoring system is 100. While the greenroad ranking system is divided into four levels, represented by the number of stars. While the greenroad ratings for contracts in 2017 and 2018 are 2 stars with 15.01 each. The increase in value in 2017 is in the AK category with a value of 3.36 in 2016 to 5.46 in 2017. While the opportunity to add green road criteria to the Periodic Road Rehabilitation/ Maintenance contract can be applied in the GCC (general terms of the contract) and technical specifications as many as 26 criteria.

Keywords: green road, adjusment criteria, content analisys, contract
Justification of Conditions and Parameters for Designing of Mining Systems in Construction and Operation of Complex Conveyor Ore Transportation in Deep Open-Cast Mines
Authors: Fedotenko V.S. , Vlasov A.V. , Kliver S.Ya. , Shadrunov A.G.
Published: October 2020

Increasing depths of open-cast mining and the distances of rock material haulage by trucks contribute to the rise in total costs. Open-cut transport is the main source of environmental impact due to high levels of exhaust emissions as well as dusting of the motor road surface and the transported rock mass. These factors make optimization of the transport component a priority. The paper considers the specific features of mining operations in deep open-pits. It is demonstrated that in such conditions the transition to conveyor ore transportation with justification of conditions and parameters for designing of mining systems is an important scientific and practical task. Advantages and disadvantages of the truck and conveyor haulage are analyzed. Conditions that determine safe transition to the conveyor ore transportation are defined using the case of the Kostomuksha open-cast mine. It is proven that justifi-cation of conditions and parameters for the design of the mining systems in construction and operation of a complex conveyor ore transportation system will help to improve the efficiency of transition to the new technology, to ensure proper management of the mining operations during the transition peri-od and to introduce reliable smart technologies for long-term operation of complex mining transport systems in deep open-cast mines.
Justification for Possibility to Dispose of Class 2 and 3 Radioactive Waste in Underground Space of Uranium Mines
Authors: Kuzmin E.V. , Kalakutskiy A.V. , Tarasov M.A. , Morozov A.A.
Published: October 2020

Intensive development of the nuclear power generation industry creates the issue of radioactive waste disposal (RAW), which has a negative impact on the environment. Development of uranium deposits using underground mines produces openings, e.g. workings and stopes that can be used as reservoirs for RAW storage. This requires a geomechanical assessment of the condition of mine workings and stopes, evaluation of their total volume, compliance with the requirements for the nuclear waste disposal sites, necessary preparation, as well as evaluation of the limits of existing mining technologies and equipment.
Volga Bulgaria Image in the Chuvash Historical Dramaturgy
Authors: Kirillova Irina Yurievna
Published: October 2020

The research objective includes identifying specificity of developing Volga Bulgaria image in the Chuvash historical dramaturgy. This image symbolizes grandeur of the Chuvash state, it is associated with the Chuvash national identity. Scientific originality of the study lies in the fact that the problem of Volga Bulgaria image representation in the Chuvash literature has not been previously investigated in the Chuvash literary criticism. The findings indicate that the theme of the ancient Bulgarian state inspired the Chuvash dramatists of different generations. Reconstructing glorious historical events, writers assert the idea of immortal value of cultural and historical heritage.