bluuebunny/crossref_metadata_2025_split huggingface dataset:
Estudio comparativo entre la descompresión simple y la transposición nerviosa en el tratamiento del síndrome del túnel cubital
Authors: Marín Marta de Juan , Suárez Luís Martín , Astruga Marta María Baruque , Martínez Irene García , Nuño Cristina Sánchez , Arias Ángel Pérez 
Published: June 2019

Introducción y objetivos El tratamiento quirúrgico del síndrome del túnel cubital es de elección en casos moderados y graves. Existen numerosas técnicas, sin un Gold Estándar definido. En este estudio, comparamos dos de ellas: descompresión sin o con trasposición nerviosa.
Material y Método Estudio descriptivo retrospectivo de 67 pacientes intervenidos quirúrgicamente por síndrome del túnel cubital entre enero del 2006 y diciembre del 2016. Los pacientes se clasificaron en dos grupos según la cirugía realizada: descompresión aislada o asociada a trasposición. Se recogieron variables demográficas (edad, género), clínicas (lateralidad y gravedad) y electrofisiológicas (DML, CMAP, MCV, EMG). La variable principal de resultado fue la mejoría o ausencia de ella al año de la intervención.
Resultados 67 pacientes se incluyeron en el estudio definitivo, 37 varones (55,2%) y 30 mujeres (44,8%), sin diferencias en la distribución entre los dos grupos en edad, género o lateralidad. Según la clasificación clínica de Dellon, 14 pacientes (20,9%) se correspondieron con el grado I (leve), 24 (35,8%) con el II (moderado) y 29 (43,3%) con el grado III (grave), sin diferencias significativas entre los dos grupos. Los resultados del estudio electrofisiológico también fueron similares en ambos. En el grupo sometido a descompresión in situ, 16 pacientes mejoraron (84,2%, n = 19). A los que se le realizó la trasposición, 39 mejoraron tras la intervención (81,3%, n = 48). Se observa que no existen diferencias en los resultados posquirúrgicos entre los pacientes según la técnica quirúrgica. Tampoco se encuentra una relación entre las variables recogidas y los resultados posquirúrgicos analizados según el tipo de cirugía realizada.
Conclusión La descompresión con trasposición no es superior a la descompresión aislada en nuestra muestra. El tiempo quirúrgico y las complicaciones asociadas a la trasposición, parecen más frecuentes, por lo que se recomendaría la descompresión in situ en casos de compresión primaria.
Atmospheric Corrosion Assessment of Structural Steel Exposed in The Environment of Palm Oil Processing (PKS) Industry Around Coastal Zone
Authors: Zulfri M , Ali N , Husaini  , Fonna S , Huzni S , Mulyati S , Cut B 
Published: June 2019

Abstract
Corrosion is the main cause of mature failures for infrastructure such as residential, public facilities, and also industries. Regarding of industry which having a rapid growth in the province of Aceh, especially Palm Oil Processing (PKS), the existence must be noticed in line with the environmental impact that caused by operations such as industrial gases which can be polluted the atmosphere. This condition can transform the infrastructure especially steel which is located around PKS becomes more vulnerable to the corrosion attacks. This study aims to investigate the corrosion atmospheric of structural steel in the PKS area and operational impacts for the infrastructure of PKS at PT. Ensem Sawita and PKS PT Anugerah Fajar Rejeki(AFR). Infrastructure corrosion is focused on measuring atmospheric corrosion rate of structural steel surrounding PKS area. Several types of steels will be selected as a specimen. The corrosion rate is calculated with mass-loss method referring to ASTM G50 standard. The location of selected PKS is around ± 5kmfrom the coast. The results are obtained after exposure during 4 months, the corrosion rate that occurs for 5 types of structural steel was in normal level. It is classified in the outstanding level of relative corrosion resistance (<1mpy). So, the usage of 5 types structural steel is relatively safe on palm industries and related areas.
Mechanical and Durability Properties of High Strength High Performance Concrete Incorporating Rice Husk Ash
Authors: Bahri Syamsul , Mahmud H.B , Shafigh Payam , Majuar Edi 
Published: June 2019

Abstract
Nowadays, more infrastructure projects require concrete to have a high durability in addition to high strength. High strength high performance concrete (HSHPC) was developed to solve those problems. The weaknesses of HSHPC are high cost of constituent material such as silica fume which is mostly used as supplementary cementitious material (SCM), high cement content at low w/b, low workability and the need of specific curing regime. This research utilized rice husk ash (RHA) as the local waste material as an alternative to silica fume (SF). Five mixes of OPC concrete, 10%, 15% and 20% partial cement replacement by RHA, and 10% partial cement replacement by SF were chosen. The water/cementitious ratio adopted was 0.25 and the total cementitious materials content was 550 kg/m3. The mixing method adopted was the two-step mixing method. In addition to the development of compressive strength, workability, modulus of elasticity and the residue of compressive strength of concrete experienced immerse in 5% solution of magnesium sulphate were also reported. The specimens were cured and tested at 1, 3, 7, 28 and 56 days. Results show that concrete incorporating rice husk ash as 10% partial cement replacement and crushed granite as coarse aggregate with maximum size of 19 mm can achieve compressive strength as high as 110 MPa at 28 days under water curing regime. The HSHPC incorporating 10% RHA showed better overall performance than the HSHPC containing 10% silica fume and the control OPC.
Hydrogen Permeation of Pd-Cu/Alumina Composite Membranes Fabricated by Combined Sol-gel and Less-electric Plating Technique
Authors: Sari Ratna , Mulyati Sri , Dewi Ratni , Hakim Lukman 
Published: June 2019

Abstract
The demand for purified hydrogen (CO < 10 ppm) has led to the development of the use of a dense Pd or Pd alloy membrane which selectively permeates the only hydrogen to produce ultra-pure hydrogen. In this work, a combined sol-gel process and a less-electric plating technique were used to prepare Pd-Cu coated ceramic alumina membranes tube. Scanning electron microscopy (SEM) and energy-dispersive X-ray(EDX) were used to characterize the membranes. Permeation tests hydrogen and nitrogen single gas were performed in a temperature range 300-500°C and with pressure range 1.08-1.38 atm. It is found that the highest hydrogen flux of 1.3 mol m2 s−1was obtained at temperature 500°C and pressure difference 0.38 atm. The highest H2/N2 selectivity of 105 was obtained at temperature 500°C and pressure difference 0.08 atm.
Wireless Communication for Remote Power Monitoring on Utility Electric
Authors: Azhar  , Kamal M , Subhan  
Published: June 2019

Abstract
One of the results of the monitoring of electric power is to perform monitoring and security analyses. among others. a power utility electricity namely electric parameter monitor way such as voltage, current. power factor. frequency, apparent power. real power. reactive power and electric energy, Operation power remote monitoring this work based on data or electrical parameter information displayed by the power meter PM9C then forwarded to ethernet gateway, In this research the method of electrical parameter data communication that is by utilizing the device wireless ADSL2 + modem router to transmit electrical parameters and data received by the personal computer, Powerlogic EGX300 software displays two groups of electrical parameter data is real time page and device logging, On the real time page consists of a single device pages. trending and device summary, Device intended for logging access each measuring device which is connected to utility power, The results of the communication data without wires. in the monitoring of the powerlogic EGX300 software can display data parameters in the form of electricity metering. electrical parameter data and trending curve. Electrical parameter data include voltage. current. power factor. frequency. apparent power. real power. reactive power and electric energy (kWh. kVARh. kVAh).
Optimization of Tilt Angle for Photovoltaic: Case Study Sabang-Indonesia
Authors: Yassir A , Zamzami U , Fauzan K , Hasannuddin T , Subhan  
Published: June 2019

Abstract
Renewable energy sources as alternative energy are needed for electrical power, reliability such as Sabang tourism area. This paper provides the most optimal angle of installation of photovoltaic (PV) to obtain the optimum PV energy with the genetic algorithm method. Daily energy that PV can accept as fitness, the tilt angle (β) as an individual evaluation with a limit of -90o to 90o. The optimal tilt angle in the area of the simulation results is equal to 6o facing south. Comparisons are made with tilt angles of 15, 30, and 60 facing south. The results show that installation with an optimal angle with the genetic algorithm method can increase the energy received by PV by 2%, 9.5%, and 38%.
Life Cycle Assessment of Cane-sugar in Indonesian Sugar Mill: Energy Use and GHG Emissions
Authors: Gunawan  , Bantacut Tajuddin , Romli Muhammad , Noor Erliza 
Published: June 2019

AbstractThis paper presents the life cycle assessment (LCA) of sugar cane production at PG Ngadirejo, that is consist of sugar cane cultivation, transportation and sugar processing. The objective of the study was to identify and review the critical areas of potential Global Warning Potential (GWP) environmental impacts in sugarcane life cycle on PG Ngadirejo. Energy consumption in the sugarcane life cycle is 116.562.52 MJ/ton sugar where the largest consumption in coal energy usage 87%. The relative contribution of CO2emission contributor, sugar processing contributes the biggest GHG emission of 96.4% (10.728 ton CO2/ton of sugar) with the use of fossil fuels reaching 9,344 ton CO2/ton sugar (87%). In sugarcane cultivation, fertilizer manufacture contributed the largest environmental impact of 0.29 tons CO2/ton of sugar 73.48%, pesticide manufacture 22.5%, and mechanization 4%. The emission reduction from bagasse that replaces fossil fuels in sugar production is 2.43 tons CO2-eq/ton of sugar, reaching 25% of total CO2/ton sugar emissions. Some options for the environmental performance improvement of sugarcane including the optimal use of fertilizers and pesticides, the concentration of sugar mills, co-generation project implementation.
Influence of Press Temperature on The Properties of Binderless Particleboard
Authors: Milawarni  , Nurlaili  , Sariadi  , Amra Siti , Yassir  
Published: June 2019

Abstract
All experimental binderless particleboard were manufactured using coffee husk. In this case, we apply a method so called an oxidation method that uses 15% hydrogen peroxide (H2O2) and a Ferro-sulphate (FeSO4) 7.5% catalyst. The methods refer to JIS A 5908-2003 standard. In this paper, through the test, we evaluate some properties of the panel including density, modulus of rupture (MOR), modulus of elasticity (MOE), internal bond strength (IB), thickness swelling (TS) and water absorption (WA). The panel is made with a target density of 0.75 g / cm3 using pressing temperatures of 150,160,170,180 and 1900C. The result shows that, by increasing pressing temperatures, some parameters such as the modulus of rupture, modulus of elasticity and internal bonding of the particleboards tend to increase while their water absorption and thickness swelling decreased. The best physical and mechanical properties of binderless particleboard from coffee husk were obtained in pressing temperature of 1800C. Microscopic study using Scanning Electron Microscopy (SEM) revealed that panels made with pressing temperature of 1800C have bond characteristics that support the improvement of panel properties. Thus, this study addressed that the mechanical and physical properties of the panel were influenced by pressing temperature.
Planning A Village Waste Management System using System Dynamics Modelling and Simulation: TPS 3R Case Study in Aceh, Indonesia
Authors: Mulyati T , Mutawaqqil M , Ilyas  , Sastra HY 
Published: June 2019

Abstract
The increasing amount of waste every year leads to the increasing capacity load and the decreasing life cycle of the landfill. In Banda Aceh, the official landfill is no longer able to accommodate garbage by 2018. Thus, in order to reduce the load on the landfill, waste reduction activities from sources must be conducted as mandated in the constitution UU No.18 2008. TPS 3R (Waste Processing Facility Reduce Reuse Recycle) is introduced by Ministry of Public Works as a waste management system from its source in villages. It has been planned to be built at several points in Banda Aceh villages, including Rukoh. In order to achieve the target of waste reduction according to Permen PU No.3 2013 and the Government of Aceh by 30% in 2020, the appropriate TPS 3R specification is required to achieve such number. In this research, system dynamics modelling and simulation using software Stella Architect used to develop the best-case scenario for waste management system in Rukoh Village in the form of TPS 3R. The main result is that the facility should be built with combination of 1 unit of composter, 2 units of plastic counters, and minimum participation of 131 households.
The effect of level concentration ceriops tagal on leather tanning of barramundi (lates calcarifer) fish skin on chemical, mechanical and leather morphology properties
Authors: Kasmudjiastuti Emiliana , Murti Rihastiwi Setiya 
Published: June 2019

Abstract
Vegetable tanning is the most classical tanning process to give leather the most natural and environmental friendly characteristics. The aim of this study is to investigate the effects of concentrations of Ceriops tagal as vegetable tanning material on chemical, mechanical, and leather morphology properties. The experiments were conducted by tanning the Barramundi fish skin using 15, 20 and 25% of Ceriops tagal followed by Aluminum 4%. The chemical, mechanical properties of the leather were analyzed and microscopic observation was also conducted. Microscopic observation with the scanning electron microscope (SEM) has been performed to investigate the grain characteristics and fibre structure of the tanned leather. The results of this study indicated that Ceriops tagal concentration affected on chemical and mechanical properties. The optimum result of this research was shown at the usage of 25 % Ceriops tagal. The results of analysis on the Barramundi fish skin showed the following properties: The chemical properties were tannin bound content of 31.1%; hide substance content of 37.68%; and degree of tannage of 82.96%. Their mechanical properties were tensile strength of (14.31±3.73 N/mm2); elongation at break of (62.68±9.33%); and tear strength of (587.85±141.25 N/cm).
Evaluation of cost and time control in Lhokseumawe City improvement project using earned value method (Case Study Street Alue Raya-Line Pipa)
Authors: Amin Bakhtiar , Anwar Chairil , Miswardi T. 
Published: June 2019

Abstract
The purpose of this study is to evaluate the amount of cost and use of time that has been used in the Improvement Project Street Alue Raya-Line Pipa Lhokseumawe City. The method that used in this study is the concept of yield value (earned value analysis) review trends in schedule variants and cost variants for a period during the project. By doing this earned value study method, evaluating the completion of the project with BPWP = IDR. 864.310.464,06, BCWS = IDR. 393.436.638,08, and ACWP = IDR. 591.235.630,69, in terms of cost variance (CV) > 0 with cost performance index (CPI) > 1 so that is obtained project completion cost (EAC) 68% of a budget plan that is IDR. 2.037.182.494,70, while from the schedule aspects the project is decreasing in time by 47% of plan or 16 weeks to be 9,45 weeks indicated value SPI > 1.
Feasibility Using Electric Arc Furnace Dust as Cementing Material in High Performance Concrete
Authors: Rizal Faisal , Fauzi Amir , Yunus Yuhanis 
Published: June 2019

Abstract
High performance concrete (HPC) is a specialized type of concrete that has been designed to be more durable and stronger than conventional concrete, thus became popular due to its superior mechanical and durability properties. Use of supplementary cementing materials such as fly ash, silica fume, and EAFD is often mandatory in the production of high-strength concrete. The effect of EAFD on the fresh and hardened properties of high performance mortar (HPM) mixtures prepared using different water-to-cementious materials (w/cm) ratios were investigated. A comparative study between EAFD and two well-known supplementary cementitious materials at different replacement levels of 0, 5, 10, 15 and 20% at w/cm ratios of 0.4 and 0.3 was carried out. The results showed that the setting times of mixtures incorporating up to 20 % EAFD were in the normal range and similar to those of controls, SF and FA mixtures. At any w/cm ratio, the EAFD can be used up to 15% replacement level and at this replacement level, the compressive strength is between the FA and SF contents. Furthermore, the 20% EAFD give lower electric charge values than the control mixture, and it is better than FA mixtures. Tests on selected high-performance concrete (HPC) mixes confirmed the results from HPM mixtures. Use of 10% EAFD as a cement replacement in HPC show there are similar setting times to HPC mixes with 10% SF and 20% FA. The compressive strength of EAFD mix was slightly lower than those of SF and FA mixes but exceeded that of controls.
Optimization of instant Pliek u (fermented coconut meat) production using Kinetic Dryer
Authors: Rohaya S , Erfiza N M , Amanda V , Sulaiman I 
Published: June 2019

Abstract

Pliek u is a traditional food of Aceh, Indonesia, obtained traditionally by coconut meat fermentation and added into food or cuisines to enhance the food taste and flavour. This product commonly contains high water and fat causing rancidity and declining of quality over storage time. Therefore, further processes were required to preserve quality and to extend shelf life of pliek u. Moreover, in order to provide ready-to-eat product, instantpliek u was produced. This research aimed to optimize the production of instant pleik u through drying process using kinetic dryer. Pliek u contained 18.8% of water, 32.34% of fat and 4.63% of ash. In this research, pliek u then was dried at 30, 40, 50 and 55 °C for 10 hours. The results showed that weight loss of pliek u increased over drying temperature and duration. In contrast, moisture content of pliek u decreased over drying temperature and duration. Moisture content of pliek u reached below 12% after kinetic drying at 30 °C for 5 hours, similarly after drying at 40 °C for 4 hours, 50 and 55 °C for 3 hours. In addition, drying rate of pliek u firstly rose over drying time and then remained constant.
Analysis and implementation of the Port Knocking method using Firewall-based Mikrotik RouterOS
Authors: Mursyidah  , Husaini  , Atthariq  , Arhami Muhammad , Hidayat Hari Toha , Anita  , Ramadhona  
Published: June 2019

Abstract
Static firewalls such as packet filtering that restrict access based on addresses on NIC (Network Interface Card) devices in the form of MAC addresses will make dependence on the device, this will make it difficult for administrators. This type of firewall is vulnerable to packet spoofing in the form of MAC address spoofing. Firewall port knocking in some previous research, port Knocking using third-party applications that must be installed and dependence on certain. This port knocking method with port programming based on socket programming aims to provide easy access without dependence on IP addresses and Mac addresses or operating systems as well as better security through a tap format that must go through 4 stages, namely having to use the correct protocol type, port number correct, correct order and send the correct string to obtain access rights. The Port knocking method only allows access to clients who have performed the correct and complete knocking port. Knocking port applications are made using socket-based programming that can run on Windows and Linux operating systems and do not need the installation process so that the authentication process is less than 2 seconds. The compatibility of the port Knocking application makes access easier and faster. The port knocking method firewall has a filter effectiveness of 66.7% and better resistance to DDoS attacks than packet filtering based on data service quality. Port Knocking gets RTT value of 380 ms (Medium Category) and Packet loss of 8.3% (Good Category), while packet filtering gets RTT value of 2858 (Poor Category) and Packet Loss of 56.3% (Poor Category).
Potensial Use of Backyard for Oyster Mushroom (Pleurotus Ostreatus) Cultivation to Increase Family income; Studies on Break-Event Point Analysis
Authors: Sayuti M , Puspasari Cindenia , Anshar Khairul , Zeki Muhammad 
Published: June 2019

Abstract
The utilization of backyard for oyster mushroom cultivation has been done in Panggoi Village, Muara Dua sub-district, Lhokseumawe-Aceh City, Indonesia. Besides becoming source of food and meeting nutritional needs, this cultivation program has also increased family income living in the area. In addition, this activity encourages consumption of various local ingredients through a balanced diet, which is expected to help reduce dependency on rice consumption. The cultivation area is 4m x 4m which is enough to accommodate 1,000 baglog. For the program to be sustainable, a feasibility study for Break-Event Point (BEP) has been conducted. The results show that cultivating 1,000 units of baglog of white oyster mushroom creates IDR 9,496,889 worth of profit at every one production cycle (4 months). Based on the calculation, it can be concluded that BEP is reached when 220,12 kg of mushrooms are sold (BEPproduction). As for the BEP Unit, the break-even point is on the cultivation of 46 baglog. This implies that the use of backyard for the cultivation of oyster mushrooms is feasible to be performed in hope for an increase in family income.
Decision Support System for Proposed Physical Development of Bantul Building Using Case-Based Reasoning
Authors: Prihatin Nanang 
Published: June 2019

Abstract
In accordance with Regulation number 1 the year 1994 concerning the general spatial plan, the development must be optimally utilized without ignoring the principle of balance and sustainability. Development programs implemented by the Government of Bantul (for the rest of the abstract defines as Bantul), specifically the physical construction of the building, or in other words the infrastructure is currently progressing incredibly fast. It is marked with the number of facilities and public services buildings in the Bantul such as government buildings, educational and health facilities, etc. The process of physical building assessment submitted by the regional work units (Satuan Kerja Perangkat Daerah/SKPD). It requires good planning since it involves massive costs and also complies with general spatial planning of Bantul. This research aimed to establish a system of decision making to assess a proposal of the physical development building by using case-based reasoning (CBR). The assessment process is done by entering values on the elements of assessment and also to determine the priority rating for each type of building. The algorithm used is k-Nearest Neighbor with a similarity function by using the Normalized Euclidean Distance. The results show that recommendations follow-on from physical development proposal assessment decision depends on the recommendation of previous cases buildings that ranked first in a list of cases with the results of its smallest Euclidean. Leaders as decision-makers can make decisions by following recommendations issued by the system, but leaders can also determine the outcome of their decisions without following system recommendations.