bluuebunny/crossref_metadata_2025 huggingface dataset:
Clause order and syntactic integration patterns in Dutch conditionals
Authors: Reuneker Alex
Published: July 2020

Conditional clauses in Dutch can occur in sentence-initial and sentence-final position. For sentence-initial conditionals, a number of syntactic integration patterns are available. This corpus study investigates to what extent clause order and syntactic integration are associated with text mode (spoken, written) and register (formal, informal). Sentence-initial position of the conditional clause is shown to be most frequent in both modes and registers, although sentence-final position is more frequent than one would expect based on the literature, especially in written texts. The distribution of syntactic integration patterns shows a clear difference between modes, as full integration of the conditional clause into the main clause is most frequent in written texts, whereas the use of the resumptive elementdan(‘then’) is most frequent in spoken texts.
All good and well
Authors: Wouden Ton van der
Published: July 2020

The Dutch expression goed en wel ‘good and well’ is polysemous. In one of its uses, goed
en wel combines with a universal quantifier alles or allemaal ‘all’ and the
conjunction maar ‘but’. The resulting construction is typically used to introduce a contrary reaction to an
earlier utterance or suggestion. The combination is shown to fit into a larger class of pragmatic operators, which are argued to
be instances of lexicalized pragmatics.
Disk evolution of the M87’s nucleus observed in 2008
Authors: Xiang Fei , Cheng Cheng
Published: July 2020

We report the discovery of year-scale X-ray variation in the nuclear region of the M87 by reanalyze the eight Chandra observations from 2007 to 2008. The X-ray spectra are fitted and decomposed into disk and flaring components. This year-scale X-ray variability can be explained quite well by a simple clumpy accretion model. We conclude that the central super-massive black hole of M87 was accreting a cloud of ∼ 0.5 M
⊙ at that time.
A coarse-to-fine strategy for the registration of the multi-wavelength high-resolution solar images
Authors: Wang Rui , Xu Zhi
Published: July 2020

The registration of multi-wavelength high-resolution solar images is an important task in the research of solar physics. This paper proposed a coarse-to-fine strategy to realize the accurate registration of high-resolution photospheric images and chromospheric images observed by the New Vacuum Solar Telescope (NVST) whose field-of-view is about 2′ ∼ 3′, and the spatial resolution can reach 0.1″ after image reconstruction. In this strategy, the full-disk solar images with relatively lower resolution taken by other space- or ground-based telescopes are taken as transition images, and the Fourier-Merlin transform, Template matching and a local statistical information based algorithm are used in combination. After registration, the geometric transformation between multi-wavelength images of NVST are corrected at the level of sub-arcseconds, including the rotation, scaling and translation relations. Two sets of data observed in active regions (i.e., the NOAA 11982 and the NOAA 12673) are used to illustrate our method step by step. The result shows that the registration accuracy can reach less than 1″. Moreover, this work also has facilitated the combination of high-resolution observations of NVST with the continuum, ultraviolet passbands and magnetic field observations of the Solar Dynamic Observation (SDO), which is highly beneficial to the multi-instrument joint measurement of solar activities.
What is the hydrologically effective area of a catchment?
Authors: Liu Yan , Wagener Thorsten , Beck Hylke E , Hartmann Andreas
Published: July 2020

Topographically delineated catchments are the common spatial unit to connect human activities and climate change with their consequences for water availability as a prerequisite for sustainable water management. However, inter-catchment groundwater flow and limited connectivity within the catchment results in effective catchment areas different from those suggested by surface topography. Here, we introduce the notion of effective catchment area quantified through an effective catchment index (ECI), derived from observed streamflow, precipitation and actual evapotranspiration estimates, to understand the prevalence and significance of substantial differences between topographic and effective catchment areas in a global dataset. We evaluate our ECI analysis by comparing it to hydraulic head simulations of a global groundwater flow model and to the Budyko framework. We find that one in three studied catchments exhibit an effective catchment area either larger than double or smaller than half of their topographic area. These catchments will likely be affected by management activities such as groundwater pumping or land use change outside their topographic boundaries. Or alternatively, they affect water resources beyond their topographic boundaries. We find that the magnitude of the observed differences is strongly linked to aridity, mean slope, distance to coast, and topographic area. Our study provides a first-order identification of catchments where additional in-depth analysis of subsurface connectivity is needed to support sustainable water management.
Shallow peat is most vulnerable to high peat burn severity during wildfire
Authors: Wilkinson S L , Tekatch A M , Markle C E , Moore P A , Waddington J M
Published: July 2020

Peatlands typically act as carbon sinks, however, increasing wildfire severity and annual area burned may challenge this carbon sink status. Whilst most peat resistance to wildfire and drought research is based on deep peatlands that rarely lose their water table below the peat profile, shallow peatlands and peat deposits may be most vulnerable to high peat burn severity and extensive carbon loss. To examine the role of pre-fire peat depth on peat burn severity, we measured the depth of burn (DOB) in peat of varying depths (0.1–1.6 m) within a rock barrens landscape. We found that DOB (0–0.4 m) decreased with increasing pre-fire peat depth, and that there was a strong correlation between the percent of the profile that burned and pre-fire peat depth. Breakpoint analysis indicates a threshold depth of 0.66 m where deeper peat deposits experienced little impact of wildfire, whereas shallower peat typically experienced high peat burn severity (median percent burned = 2.2 and 65.1, respectively). This threshold also corresponded to the loss of the water table in some nearby unburned peatlands, where water table drawdown rates were greater in shallower peat. We suggest that peat depth may control peat burn severity through feedbacks that regulate water table drawdown. As such, we argue that the identification of a critical peat depth threshold could have important implications for wildfire management and peatland restoration aiming to protect vulnerable carbon stores.
Quantum evolution with a large number of negative decoherence rates
Authors: Siudzińska Katarzyna , Chruściński Dariusz
Published: July 2020

We analyze the evolution of open quantum systems governed by time-local master equations beyond the Markovian semigroup. Non-Markovian effects are usually attributed to the negativity of some decoherence rates in the time-dependent generator. For the qubit dynamics, it is well known that there can be one permanently negative rate in the so-called eternally non-Markovian evolution. We show that for qudits one can have (d − 1)2 out of the total d
2 − 1 rates that are always negative, and the evolution is still physically legitimate—that is, represented by a completely positive, trace-preserving dynamical map.
Prior Study for the Biology and Economic Condition as Rapidly Environmental Change of Limboto Lake in Gorontalo, Indonesia
Authors: Kasamatsu Hiroki , Jahja Mohamad , Indriati Arifin Yayu , Baga Magdalena , Shimagami Motoko , Sakakibara Masayuki
Published: July 2020

It is estimated that Water area of Limboto Lake will disappear before 2030. Groundwater is also decreasing. Those phenomena affect biological environment of lake. Lotus that perennial plant disappeared because water depth is falling 15cm/year and water hyacinth that brought by river multiply from around 2000. Those rapidly environmental change and fish farming from 1995 influenced that fishes are small and few than past. And flood is happen every rainy season. People who live around lake choice modern style house and filled 1m depth water flood. It is thought that their economic condition might relate to their choice. Fisher’s earning is approximately Rp.51-16million/year, farmer’s one is Rp.10-17million/year. Their income is not much at all. The possibility that their economic conditions worsen more is very high in situation of rapidly environmental change. It is necessary how to develop new sustainable work under the present conditions.
The Stakeholder’s Position Map Related to the Mercury Pollution Reduction Program in Bombana Area, Southeast Sulawesi, Indonesia
Authors: Basri  , Sakakibara Masayuki
Published: July 2020

The rapid expansion of the artisanal and small-scale gold mining (ASGM) industry in developing countries has resulted in occupational exposure to mercury via the gold extraction process. The objective of this study was to assess the knowledge, interest, position, and power of stakeholders for the implementation of the mercury pollution reduction program. This study involved ten stakeholders as representatives from different backgrounds in the Bombana regency. The results of the analysis show that the health department, environmental agency, and village head are stakeholders who have a high level of knowledge and interest in the program. The assessment based on position and partnership indicates that the health department and local university have high-level power/leadership and become the great potential supporter. Stakeholders with the potential to become opponent are traditional land owners, mining companies, and local activists. The priority strategy recommended from this study is to initiate active communication to stakeholders and create a clear guidance on the implementation of the program. Also, an effective approach is needed to create the mutually beneficial cooperation agreement to avoid provocation and conflict.
Traffic Management and Engineering Analysis of the Manahan Flyover Area by using Traffic Micro-Simulation VISSIM
Authors: Yulianto Budi
Published: July 2020

The location of the Manahan railway level crossing is a meeting point for movement between trains and vehicles which often causes traffic congestion and traffic accidents in the area. In connection with the construction of the double track railway, the intensity of traffic congestion in the Manahan railway level crossing area is increasing. In order to overcome traffic congestion in the area, the Surakarta City Government built Manahan Flyover infrastructure. However, due to traffic management and engineering in the existing conditions is not optimal resulting in a relatively bad traffic congestion in Manahan Flyover area. The aim of this study is to conduct traffic management and engineering analysis to minimize traffic congestion in Manahan Flyover area. The traffic micro-simulation VISSIM model is used to evaluate the performance of road networks at peak traffic conditions with different simulation model scenarios. The existing model is built based on a field survey data and then calibrated it to approximate conditions on the field. Then based on the existing model, modelling of several traffic management and engineering scenarios are carried out to obtain the optimal performance of the road network in the Manahan Flyover area. The analysis shows that the simulation model Scenario 3 produces the best performance of road network in terms of vehicle delay, queue length, travel time and speed
Correlation of Undrained Shear Strength and Liquidity Index of Fine-Grained Soils in West Java, Indonesia
Authors: Miranda Hutabarat Gilberta , Widjaja Budijanto
Published: July 2020

The undrained shear strength of fine-grained soils is an important property in geotechnical engineering. However, the process of determining undrained shear strength can be challenging. Hence, the correlation of undrained shear strength with other soil properties needs to be established. Several studies have estimated undrained shear strength using the liquidity index. In the current study, we aim to find the best correlation of undrained shear strength and liquidity index of fine-grained soils in West Java, Indonesia at various water contents using the form of correlation of undrained shear strength and liquidity index and also factors influencing the undrained shear strength. The values of undrained shear strength and liquidity index are obtained by laboratory test and data collection from previous studies of soils in West Java. Results show a good linear relationship between the logarithmic value of undrained shear strength and liquidity index for 173 variations of soil samples. We also can conclude that the undrained shear strength of fine-grained soils is controlled by the proportion of finer grains presence and also the plasticity of the soils.
Correlation between Plasticity Index and Methylene Blue Value to Determining Soil Classification
Authors: Suhendra Nugraha Andrias , Rahardjo Paulus P. , Hutapea Bigman M. , Sadisun Imam A.
Published: July 2020

Most soil classification systems developed for geotechnical engineering purposes are based on simple index properties such as grain size distribution and plasticity. In Indonesia, the use of the methylene blue value, VBS, is still rarely used, compared to Atterberg limits that commonly used to determine the value of the plasticity index, PI. Therefore, this study aims to gain a correlation between PI and VBS. Coarse-grained soil with fines (clay and silt) contents varies from 12.36% to 29.45% are used of this study. The linear correlation between PI and VBS produces a linear equation with a coefficient of determination, R2 = 0.854 for 0.62 < VBS < 2.39. The PI obtained from the correlation to VBS that combined with the sieve analysis results can then be used for soil classification based on the Unified Soil Classification System (USCS).
Natural Flocculant VS Chemical Flocculant Where Is Better To Used In Wastewater Treatment
Authors: Zaman Badrus , Hardyanti Nurandani , Arief Budiharjo M. , Budi Prasetyo S. , Ramadhandi Aldiansyah , Tri Listiyawati Arum
Published: July 2020

Nowadays, Coagulation-flocculation process is still common method were used in both large and small scale in wastewater treatment. It’s process an effective method as pretreatment. Flocculant (natural aid) can use many material is an important factors for coagulation-flocculation process. Many materials were used for coagulant-flocculant aid, but typically can be divided into chemical, grafted and or natural aid. Chemical flocculant was made from monomers formed to electrolytes polymers, that is cationic polymers, anionic polymers or non-ionic polymers, such as polyacrylamide have been widely used for decades. Grafted flocculants were synthesized by combining the properties of polymers, both synthetic and natural by ‘connect to’ method, such as Polydiallyldimethylammonium chloride (polyDADMAC or polyDDA). Whereas natural flocculant can be derived from seed of plantago, ovata, moringa, olifiera, etc. Some natural starch can be used as natural aid also. The main advantages of natural flocculant are their renewability, biodegradability, nontoxicity and relative costeffectiveness. but for development in the future constrained by some challanges, Natural flocculant tend to have shorter live which caused by biodegradability of active component, floc will loose. Besides that, chemical flocculants are used because of their easy use. However, in many studies, the usage of chemical flocculant will have an important environmental impact, such as, producing toxic sludge containing metal hydroxides which causes problems with their disposal and increasing metal concentrations (eg aluminum) which can have an impact on the sustainability of human health. This paper will review some chemical flocculant and natural flocculant also tell about environmental affect, both disadvantages and potential which is better used to wastewater treatment.
The Study of Quality Control Management that Influence the Implementation of Technical Standards for Class C Hospital Buildings in Tangerang Districs
Authors: Andina Fajriah Milla , Simanjuntak Manlian Ronald A.
Published: July 2020

Based on research issues regarding the implementation of hospital building technical standards that are often ignored, especially from the quality control process so that there is no improvement in quality, the research problems that will be resolved are analyzing the understanding and indicators regarding; quality control management, and the application of technical standards in class C hospital buildings. This study examines the main aspects of quality control management, quality control circles, and PDCA Cycles (plans, actions, checks, actions) as a program in the implementation of factors that affect quality control management. Applying the technical standard of class C hospital buildings was assessed based on the provisions of the ministry of health. As a consideration of this research examines the portrait of the project under study, which is a case study of Class C Hospital in Tangerang Districts and highlights relevant research results in the past 10 years. Qualitative methods sourced from secondary data will be used to study understanding and indicators in discussing research problems. In the results of this study it can be concluded that the factors of quality control management can hinder the application of hospital building technical standards so that it can affect the quality of the building which has an impact on the comfort and safety of building users. This research produces answers to research problems that will provide recommendations for improvement for service users so that it can have a positive impact on the implementation of the project.
Risk analysis of toll road construction project by using soft system methodology (ssm) a case study of Sumatera trans toll road section 1 Bakauheni – Kalianda
Authors: Enriko Tosulpa M. , Najid
Published: July 2020

Toll construction project never loses its touch of various kinds of trouble well as well as a problem as well as technical and non-technical matters. This energy problem occurred as a result of various factors that are considered to be as to risk a construction project.risk the loan would also be a great deal to perform and leaving close to lose in case the cost of, improvement in the quality of, and time, determine the success of a different project it was. For that reason it is, objectives of the study are to identify and analyze the hour by hour there is very little risk that might happen to the case studies to invest in a project in a qualitative manner uses the method soft system patients outside the system methodology (SSM) on a case study toll construction project a trance the company plantations in Sumatra bakauheni-terbanggi large section 1 bakauheni - kalianda (sta .00 + 400 was sta .20 + 000). This report is written with uses the technique purpose the sampling method to collect the data of the six respondents in the present study.The method of analysis of the data used in this study is very little risk of the probability of testing to be the case, there is very little risk the fit and proper test assumed that as a consequence, and soft system patients outside the system methodology (SSM).
Project Cost Risk Identification and Construction Performance Indicators of High-rise Building in DKI Jakarta (Case Study: PT. X)
Authors: Simanjuntak Manlian Ronald A. , Virgina Suryaningrum Intan
Published: July 2020

According to Skyscraper Center, a website for world’s tall builidings database Indonesia ranked 7th globally for most –have tall buildings country. As for the city category Jakarta itself ranked 10th globally with 407 buildings.

A High-rise building project has its own uniqueness such as involves many disciplines and complexities also high risk of uncertainty. Cost factor is one of the biggest risk which is the contractor should consider the most. The most responsible people, the contractor required to understand and have an ability how to manage many aspects such as cost risk to achieve the project goals: the optimum cost performance, quality and schedule which were budgeted and agreed upon. This research aimed to identify the risk of project cost and construction performance indicators.

The stages of methodology of this research as followed, studied the relevant issues, identified the research’s concern, prepared the research’s instruments, analyzed the research’s concern and discussed the results. The quantitative method applied in this research. Primary and secondary source of data used in this research.
Utilization of rainwater harvesting installation to fulfil water needs in educational buildings
Authors: Lestari Endah , Pranoto Wati A , Makarim Chaidir A
Published: July 2020

The fulfillment of STT-PLN water needs to be supplied from ground water. This will be decreased soil and soil water discharge due to large quantities of consumption. Areas of Indonesia have a high rainfall, i.e. 2, 000-4, 000 mm/year, should not have to worry about the availability of clean water. The problem faced is that there is no adequate management of rainwater. Based on these problems, it is necessary to develop methods of managing rainwater, harvesting and utilizing rainwater to meet the needs of clean water and water conservation for the sustainability of the carrying capacity of the environment. By calculating using 15 years daily rainfall data and roofing area as a catchment area to obtain the volume of potential water. The aim of this research is to analyze the amount of rainwater volume that can be accommodated in the rainwater harvesting system and to be processed as a clean water consumption.
Flexural & impact characteristics of kevlar fibre & coir fibre reinforced with epoxy hybrid composites
Authors: Vinaykumar M J , Srikantappa A. S , Ramkumar M
Published: July 2020

Now a days Composite materials plays a very good replacement for a regular materials or it is complementing a materials in existence. Hybrid composite were manufactured by taking into the account of Kevlar 49 a synthetic fiber, coir fiber a natural fiber with different volume fractions and Bentonite powder as a filler material. Treatment of natural fiber also been made. The impact resistance offered by the Kevlar 49 fibre is higher and it is given more importance with coir fibre also taken into the consideration. Epoxy resins is used as matrix phase in the production of hybrid composites. The effects of Flexural strength, Impact strength on the hybrid composites are discussed.
On Preparation of Advance Ceramic for Single-edge V-Notch Beam Fracture Toughness Test of ISO/FDIS 23146:2008(E) Standards
Authors: Gde Tirta Nindhia Tjokorda
Published: July 2020

With establishment of fracture toughness test for advance ceramic according ISO/FDIS 23146:2008(E) with the sample test of Single-edge V-Notch Beam/SEVNB, then the researcher related this activity should understand and able to realize how to prepare the sample of advance ceramic in order the requirements of the standard are fulfilled. In contrary with metals and polymers that usually easy to cut as the standard size for testing, the advance ceramics are found much more difficult to prepare since it is very hard and brittles. More even, specifically for fracture toughness test, the level of difficulty is added since the sharp initial crack should be introduced in the edge of the sample. This article introduce method on preparation of advance ceramic for the purpose of fracture toughness test completed with method to introduce the initial sharp V-notch crack which is valid and possible to be measured its length and diameter of the tip that yield valid result of fracture toughness test.
Viscosity of Mono vs Hybrid Nanofluids: Measurement and Comparison
Authors: Fadzli Khairil , Abdullah MZ , Mazlan NM , Mohamed AR , Ahmed Janvekar Ayub , Nasir FM
Published: July 2020

The authors aimed to look into the viscosity investigation of mono and hybrid Aluminium Oxide/Silicon Oxide (Al2O3/SiO) based nanofluids. The viscosity methods were carried out for mono nanofluids as well as hybrid nanofluid, which are suspended in base fluid (water). Both mono and hybrid nanofluids of Al2O3/SiO were developed in concentration, which vary from 0.01% to 1.00%. The methodology invoked for viscosity measurement was done by spindle rotation technique, which uses Anton Paar RheolabQC rotational rheometer at temperatures of 30 - 70 ° C. The results imply that viscosity of nanofluids was directly proportional to volume concentration and temperature.
Reducing Project Duration of An Apartment Project by Waskita Karya using Crashing Method
Authors: Ririh K.R. , Hidayah N.Y
Published: July 2020

This study is intended to calculate the fastest completion period of an apartment project in Medan by Waskita Karya. Since, Waskita Karya is a-projectbase state owned company, it is important to maintain its quality of every running projects. Apartment Project in Medan was potentially delayed and it would lead to a penalty from its project cost around Rp. 614.627.071.968. Project duration was 42 months. Several datas were gathered such as S-Curve, number of workers, and cost structures, also interviews. From Crashing Method calculation, this study shows that this project can be reduced optimally to 39 months but it would rise the total project cost to Rp. 618.665.777.827 which equal to price addition of Rp. 4.038.705.859
Calculation of Labor Amount with Theory of Constraints and Line Balancing Method in PT. XYZ Fish Crackers Factory
Authors: Gozali Lina , Jusuf Daywin Frans , Jestinus Alvin
Published: July 2020

The right amount of labor on work station is important to avoid uneven workload, that might reduce efficiency on production line, and cause bottleneck. Therefore, this research focus at searching the optimal amount of labor using line balancing and bottleneck that occurs on XYZ Fish Crackers Factory. Theory of constraints method is used to identify bottleneck, and line balancing method that will be used is Kilbridge-Wester, Moodie Young, Helgeson-Birnie, and J-Wagon. Fish cracker drying is the process that encounter bottleneck. The beginning line efficiency is 50.09%, with Kilbridge-Wester, Helgeson Birnie, and J- Wagon method, the line efficiency is 89.22%, and with Moodie Young method, the line efficieny is 89.45%. Therefore, Moodie Young method is the best method to apply, because it has the best result, with 89.45% line efficiency, 10.55% balance delay, 13.96% smoothness index, 20.3 minutes of idle time, 5 work station, and amount of labor needed is 10 person.
Implementation of Lean Warehousing to Improve Warehouse Performance of Plastic Packaging Company
Authors: Prasetyawan Yudha , Khairani Simanjuntak Alfia , Rifqy Naufal , Auliya Lulu
Published: July 2020

Warehouse activities affect the operations in the business process of a cosmetic plastic packaging company especially the production floor since the activities have connected each other. The company has problems in maximizing the storage space and eliminating the floor stock because of inaccuracy of warehouse stock data processing and inappropriate stock placement. So that, there are several types of waste in the warehouse activities from receiving, put away, storing, and order/material picking. The problem will be solved by using lean warehousing. The collected data of raw material storage, WIP storage and finished goods storage will be visualized using value stream mapping (VSM) and process activity mapping (PAM). Then, the warehouse performance is measured. From the VSM, PAM and performance measure, the waste can be identified. The wastes in the raw material storage are overproduction, inventory, defect, transportation, waiting, excess processing and motion. Wastes in WIP and finished goods storage are inventory, defect, transportation, waiting, excess processing, and motion waste. The improvement plans are to allocate the special stocks, subleveling the small quantity items, warehouse mapping based on FSN (Fast moving, Slow moving, and Non-moving) classification, creating warehouse regulation and improving transfer officer movement. The warehouse performance after improvement shows that the financial and cycle time indicators decrease while utilization, quality and productivity indicators increase. By using lean techniques, inventory accuracy can be increased, order picking errors can be reduced, processing time can be reduced, and warehouse space can be streamlined.
Simple automation for pinneaple processing combining with karakuri design
Authors: Prasetyawan Yudha , Arifiyana Agustin Atiya , Anggrahini Dewanti
Published: July 2020

The processing of pinneaple becoming fruitcake has been done for several years using manual process in a Small to Medium Enterprise in rural region. This rural region producing a huge number with less production value of pineapple as there is no modern industry. The purpose of this research is designing a simple automation to enhance the productivity with the combination of karakuri to achieve an efficient process. Efficient process means that to proposed system using a small quantity of energy. The system has been compared with the previous manual system and it is proven to have more productivity, easy to operate and using less energy (electricity in particular). In terms of quality, there is no more defect product such as overcooked so that the designed system is robust. The proposed system is also relatively inexpensive as it is used simple automation.
Comparison Study about Production Scheduling System from Some Paper Case Studies
Authors: Eliyanti Vania , Gozali Lina , Widodo Lamto , Jusuf Daywin Frans
Published: July 2020

Scheduling is one of the most important classes of combinatorial problems. One of the first problem to be studied in the scheduling theory is the problem of minimizing the makespan in flowshop. In flowshop, the products which is produced have the same sequences. The heuristic algorithms are the key to solving the problem with the optimal solution. To find or to approach nearer to the optimal solution, the meta-heuristic algorithms can be used and the heuristic algorithms as the first solution. One of heuristic algorithm that can be used is Campbell, Dudek and Smith (CDS). Also, the meta-heuristic algorithms that can be used are Tabu Search and Genetic Algorithm. The aim of this paper is to know the gap among the other methods in flowshop scheduling system to reach the optimum makespan.
Comparison Study of the Application of Line Balancing and the Theory of Constraint
Authors: Novelia Sagitta Jessica , Gozali Lina , Jusuf Daywin Frans
Published: July 2020

Bottleneck is one of the most important problems in the work station process. The problem that will be studied in bottleneck theory is minimizing bottlenecks at work stations that experience bottleneck constraints. Line Balancing is one of the main keys to solve the problem with an optimal solution. If not carried out the balance of the track it can lead to inefficiency of work in several work stations where between work stations with other work stations have unbalanced workloads. However, it may also be time-consuming, so we need a theory of constraint method to minimize costs so that the results are more optimal for the company. The purpose of this paper is to compare research using other methods in minimizing bottlenecks, optimal efficiency at each work station, and minimizing relevant costs.
The Identification of Risk Factors of Quality that Affecting Contractors’ Performance at XYZ Company
Authors: Rizky Tatimu Edward , Simanjuntak Manlian Ronald A.
Published: July 2020

In the implementation of construction projects often present several problems, both are technical and non-technical. Risk management is an activity carried out to minimize the risks that might occur in the project. Construction in the Green Office Park district owned by PT. XYZ gives trust to one of the leading contractors in Indonesia and assisted by other specialist contractors. Green Office Park was recognized for incorporating advanced green architectures to conserve energy, water and natural resources. This district is located on a land area of 25 Ha and there are 6 office buildings and a lifestyle mall with beautiful and unique concepts that have Green features, like Microclimate Optimization, Green Transport and Integrated Parking, and Sustainable Management Practice. During the construction of several buildings in this district, they often experience various obstacles and more or less have similar problems in every development in this district. The purpose of this study is to identify the risk factors of quality of the contractors’ work in the PT. XYZ. This study was examined based on various literature sources, namely: project life cycle, construction phase, risk management, quality management, the parties involved in the construction process, project performance, and various relevant research results. The research methodology is carried out by stages: discussing the problems that occur in the field, identifying research problems, preparing research instruments, analysing research problems and discussing the results of the research obtained. Through this research, resulted identification of risk factors of quality that affecting contractors’ performance at the XYZ company.
Risk Assessment Of Working Posture And Implementation Of New Workstation To Increase Productivity
Authors: Sukania Wayan , Ariyanti Silvi , Jayusman Michael , Rohana Nasution Siti
Published: July 2020

In the production process of plastic spoons, workers who run the separation process are working in a less ergonomic condition. In consequence, the production process lacks productivity because the task requires relatively longer time than it should. Utilizing Nordic Body Map analysis method, this study found that there are physical complaints among workers. More specifically, using Quick Exposure Score method, the exposure score on the separation station is at 59.09% and at 67.90% on the packaging station. Using REBA method of analysis, this research obtains REBA score at 10 on the separation station and 9 on the packaging station. Using WERA method, the last score on the separation station is at 40 and the packaging station at 33. The standard time based on the current workstations is at 127.97 seconds. Improvement is manifested by designing working tools. The implementation of the new tool results in the decrease of biomechanical complaints and exposure level at 49.38%, REBA score at 3, and WERA score at 26 on the separation, arrangement, and counting process. This research also results in WERA score at 25 during the process of inserting packing output. The total of standard time is reduced up to 62.10%.
Reducing of Defects in the Drug Tablets Production Process with DMAIC to Improve Quality – Study Case of Pharmaceutical Industry
Authors: Winatie Adha , Santoso Saroso Dana , Hardi Purba Humiras , Puspa Wirani Ayu
Published: July 2020

The high defect and unstable of defects the company in 2017 amounted to 0.27% while the amount allowed by this company was 0.10%. In This research was carried out in a Pharmaceutical Industry with the purpose of reducing the product spots drug tablets, the research method uses the DMAIC stages Define, Measure, Analyze, Improve and Control. The tools used are SIPOC diagrams, pareto diagrams, P charts, minitabs to calculate sigma levels and improvment with FMEA. The number of reject spots for tablets in 2018 was 0.28% and the sigma level was 4.63, then after analysis and DMAIC the reject rate was reduced to 0.0081% and sigma level 5.45.
Early Assesment Dyslexia
Authors: Wiryasaputra R , Williandi T
Published: July 2020

Early diagnosis of dyslexia disorders symptoms could minimize the disruption of children learning development and also help parents to give proper treatment for the children. The diagnosis process that has been done so far is mostly done manually that depends on the pediatric psychologist which is has limited number and relatively expensive. Therefore, the early diagnosis of dyslexia disorders symptoms is useful to make the diagnosis process easier and shorter. On this research, the researcher using the Dempster-Shafer method to detect three types of dyslexia disorders symptoms they are dyslexia, dysgraphia, and dyscalculia. The method was used to manage the dyslexia disorders symptoms in percentages and in this research the researcher had done a system test by comparing the diagnosis results from the system and the expert using ten sample cases, with 50% accuracy rate diagnose result.
Graph Model of Reporting Engine Performance Results in The Business Intelligence Process
Authors: Prasetya Adhi Bambang , Widodo  , Nanda Prasetya Dendy , Adjie Hamidillah
Published: July 2020

The testing process in several reporting engines is carried out in accordance with predetermined test parameters. Testing can be seen from aspects of compatibility, performance, and usability. The test results explain in detail about testing measurement techniques on the reporting engine in the business intelligence proces.

The test parameters use symbols and explanations in the table column. Symbols describe or summarize the explanations contained in the table. The research method used is an experiment where each symbol will be indicated by three colors, namely: green, yellow, and red. Each color has its own meaning. Green has the meaning that the reporting engine matches / meets the testing criteria. The yellow color means that the reporting engine is a bit suitable / only meets part of the testing criteria. The red color means that the reporting engine does not meet the criteria of testing. Next, the symbol will be used for graphics. The graph model illustrates the conclusions of the reporting engine testing from three aspects of compatibility, performance, and usability. The graph only strengthens information from the core table. Based on the graph, it can be concluded or obtained information about the performance of the reporting engine and simplifying the analysis process.
A review of attacks, objects, and mitigations on web services
Authors: Masrur Rauf Rafif , Eiffel Rivaldo Tubagus , Amiruddin Amiruddin
Published: July 2020

Web service is a technology that continues to develop until now. Web services are needed for the exchange or dissemination of information between applications through a computer network. Various methods have been developed to improve the performance and security of web services. However, the more the increasing performance of web services, the higher the level of vulnerabilities and threats. Some attacks often target on web services are Denial of Service (DoS), Structure Query Language (SQL) injection, and eXtensible Markup Language (XML) injection. There are also many methods or techniques that researchers proposed as mitigations for these attacks. In this research, a literature review has been carried out regarding attacks as well as objects and mitigation of such attacks on web services.
Climate Responsive Architecture in Jakarta’s Apartments
Authors: Tjie C , Lianto F , Priyomarsono N W
Published: July 2020

Almost every day, apartment buildings in Jakarta have to face a long hour exposure of solar heating which caused temperature gain inside the building. It creates a high room temperature and requires an air-conditioning system to reduce room temperature. This problem arises from the ineffective function of architecture design elements used. The method used in this research is literature study and analyze it with the case study of three apartments located in Jakarta. The principal design of climate-responsive architecture in Jakarta (tropical humid climate city) is a passive cooling strategy which used to prevent/avoid solar heat exposure and to release heat inside the building. There are two categories of design elements function used: 1) as building envelope/façade (such as shadings, ventilation, roof, and building materials) and 2) as building placement (such as building thickness and orientation, ventilations, building landscape, etc.). Three apartments located in Jakarta were analyzed with the findings, and the design elements used were found ineffective as climate filter in Jakarta (the three apartments still rely on air-conditioned systems-active cooling approach to reduce the transmitted solar heat and cooling rooms). The result of this study is a solution/recommendation for designing architecture elements that functioned as climate filter and have better respond to Jakarta’s climate.
Natural Lighting Analysis in Plaza Senayan, Jakarta, Indonesia
Authors: Gunawan Silvia , Widayati Priyomarsono Naniek , Trisno Rudy
Published: July 2020

As the development of malls went more advanced, there are malls in Jakarta that keeps up with the trend, while some others are left behind. A mall does not only function as a shopping center, while also catering for some other functions; to socialize, meeting place, hanging out, studying, and working. Visitors could experience something that couldn’t be obtained elsewhere. Lighting is the most important aspect in the interior design of malls, to create an ambience in order to increase sales. This research is conducted to study on the effect of skylight shapes to natural lighting distribution in Plaza Senayan. Qualitative & quantitative methods are used with explorative approach, along with real measurements in the areas of the shopping mall covered by natural lighting. Building orientation, building shape, skylight shape, natural lighting distribution, and lighting intensity are the indicators used in this study. Field exploration was analyzed with current codes, and a simulation was conducted using Velux Daylight software to see the lighting distribution as well as the solution. Research results show that there are areas that hasn’t fulfill the minimum lighting intensity requirement, areas with too much lighting, far from current standards. Results show that natural lighting distribution on square skylights are more evenly distributed than circular or hexagonal skylight shapes. This shows that skylight shapes does have an effect towards natural lighting distribution.
Prediction Analysis Of Criminal Data Using Machine Learning
Authors: Meiliana  , Trisnawarman Dedi , Choirul Imam Muhammad
Published: July 2020

The human-being life necessities have encouraged the commission of crime since ancient times. Nowadays, many crimes factor and techniques have developed in a more sadistic way, causing more victims and loss. The authorized parties need to find a way to minimize the commission of a crime. This research aims to utilize linear regression algorithm for analyzing crime data to generate predictions for crime, which shows a quite reliable result. The result can be used by the authorized parties to help them prevent and handle upcoming crime.
The use of MNCP-5 particle transport program for calculation of flux radiation exposure in object surface
Authors: Pandiangan Tumpal , Bali Ika , Silalahi Alexander R.J.
Published: July 2020

Calculation of particle or photon flux in three dimensions is needed to facilitate the observation and the real approach of radiation to the observed object. Calculation of the flux of radiation received on an object’s surface can be done using the MCNP-5 particle transport program (Monte Carlo N particle-5). In this study, the radiation source is a neutron particle emitted from the center of the ball with a radius of 0.5 cm with 16 MeV of energy on an object’s surface of an iron ball with a radius of 0.5 cm. The source of neutrons and irradiated objects is in a cube vessel, with a side length of 10 cm and 20 cm. This simulation can be useful as a model for calculating the impact of radiation exposure on the surface of objects in human organs. Flux and the magnitude of the radiation particle’s track on the object’s surface are calculated based on changes in media material, media size and number of radiation particles (NPS). The results showed that the flux and particle track received by the surface of an object were greatly influenced by the media material and media size and the NPS value of the radiation particles.
Cloud computing model in higher education
Authors: Mulyawan Bagus , Kosala Raymond , Ranti Benny , Harso Supangkat Suhono
Published: July 2020

Currently, higher education is institutions that should be managed as a global business institution. Higher education should improve continually its business processes according to the demands of increasing its stakeholders. of the problems faced in the development of educational, activities if related to the use of information technology for each service in higher education for stakeholders is the issue of available funds. Cloud computing also has advantages related to infrastructure and maintenance and increases operating efficiency. Most institutions are currently moving towards cloud computing technology to reduce operational costs. For achieving these objectives, the institutions need to be supported by reliable technology. This study aim to propose cloud model for education and IT Governance conceptual framework for Cloud Computing model adoption, Tarumanagara University as a study case.
Water flow motion in the vehicle of main channels
Authors: Bazarov D , Markova I , Raimova I , Sultanov Sh
Published: July 2020

The article considers a numerical study of the movement of water flow in the Amu-Bukhara Machine Channel (ABMCh-Bukhara region). Water intake to the inlet channel is carried out from one of the most muddy rivers in Central Asia in a damless manner, therefore, ensuring the flow of clarified water into the anterior chambers of pumping stations is an urgent task. A numerical study is a study of the hydrodynamic parameters of the flow and, based on the data obtained, the developed recommendation is the aim of this work. The determination of the main hydraulic parameters of the flow moving in the riverbed by numerical research is accepted as a research method. According to the developed model, consisting of hydrodynamic equations, based on the law of conservation of momentum and mass, data on the dynamics of velocities of the ABMCh supply channel are obtained and zones of uneven flow in the channel are determined. A recommendation has been developed that allows quasi-uniform movement, which helps to prevent the formation of deformation of the supply channel of the pumping station and the entry of suspended and bottom sediments into the chamber of the pumping station.