bluuebunny/crossref_metadata_2025 huggingface dataset:
Environmental Justice as a Social Imperative of the Near Future
Authors: Kipriyanova M A , Smolnikov S N , Stegniy V N
Published: February 2021

This study aims to analyze environmental justice as a reflection of the issue of social justice. The authors analyzed the term “environmental justice,” which is directly related to “social justice.” The basis of environmental justice is the principles of a social organization projected onto the interaction between people and the environment. The authors theoretically and empirically analyzed the focal points of environmental justice using the socio-ecological method. The paper focuses on (1) the content of “environmental justice”; (2) its structural elements; (3) the content of its core; (4) comparisons between the concepts of “environmental justice” and “social justice”; (5) their subject-object relations. The authors analyzed three types of the human environment (natural, object, and social), paying close attention to the primary and fundamental social communities. Out of these three, the social environment, responsible for ecological and social crises, is analyzed more closely. The authors conducted the cause-effect analysis of environmental and social problems that lead to environmental and social injustice. Moreover, the authors consider the possibility of using the principles of environmental justice to analyze the environmental imperative.
Morphological Changes of Leaves of Birch (Betula pendula Roth) During the Growing Season in the Conditions of Petrochemical Pollution of the Environment
Authors: Tagirova O V , Kulagin A Yu
Published: February 2021

The authors analyze their data on birch leaves (Betula pendula Roth) during the growing season of 2019. Studies were conducted on the territory of the Ufa industrial center near oil refineries. Model birch trees grow on permanent plots. Ten leaves are numbered on the trees. Photographs of each plate were taken during the growing season (June-July-August-September). The integral indicator of the stability of leaf development was calculated according to five criteria: (1) the wide of the left and right halves of the leaf; (2) the length of the second vein from the base of the plate; (3) the distance between the grounds of the bottom of the first and second veins of the second-order of the leaf; (4) the distance between the ends of the first and second veins of the second-order of the plate; (5) the angle between the central vein and the second vein of the second order from the base of the leaf. The research shows that under conditions of the hydrocarbon type of environmental pollution, there are deviations in the morphological development of birch leaves. The authors show that an individual trajectory of morphological development is characteristic of leaves. The phenomenon of adaptive polymorphism of birch leaves is noted. Moreover, the morphological and functional features of the plate are inextricably linked. Leaf asymmetry indicators can be used to characterize the state of birch trees in urban conditions.
Organizational and Legal Aspects of Transport Logistics as a Factor of Sustainable Development
Authors: Filippova T A , Voronina S V
Published: February 2021

Transport logistics is an essential factor in the sustainable development of the modern economy, since it ensures the most efficient movement of freight flows. It provides an opportunity to attract specialized organizations for cargo transportation, which frees cargo owners from non-core activities, reduces the cost of transportation of goods, and considers the interests of all participants in the logistics chain. Our study aims to analyze the organizational and legal aspects of transport organizations to ensure sustainable economic development. The development uses modern legal science and methods of scientific research to develop and improve Russian legislation governing the provision of transport and logistics services. We used materialistic dialectics, complex and system analysis, logical laws and rules, and modeling in our research. In particular, we reviewed and analyzed the norms of the current Russian legislation, their implementation by the subjects of economic activity, and the works of civil scientists in private law and specialists in other related fields. Based on the analysis of Russian legislation and doctrinal understanding of logistics services, we conducted a theoretical and applied study of the existing improvements in the legal regulation of this sphere. The logistics should be considered an economic category and a traditional institution to ensure steady transport development. We proposed amendments to existing federal laws, including changes in the name of certain sections of the Civil Code of the Russian Federation. To control organizations providing transport and logistics services, measures of public administrative impact directly affecting the sustainable development of transport are proposed.
Factors of the Current Sustainable Development of the Fisheries Complex in the Kamchatka Krai
Authors: Ganich Ia V , Saparkina A V , Shulikov A O
Published: February 2021

Based on a comprehensive analysis of statistical data, we investigate the state of fisheries in the Kamchatka Krai, the dynamics of catching and exporting the aquatic biological resources, and the existing production structure. We indicated the problems in the development of the fishing industry (aging of the fleet, the spread of poaching, the disposal of “non-target” fishing objects, low processing of export products, etc.). Moreover, we studied the functional specificity of the fishing industry. The paper identifies and analyzes the main factors of sustainable development in the fishing industry. It also reveals the organizational and economic mechanism of regulation and stimulation of the fishing industry. We analyzed the activities of federal and regional authorities in the context of fishery development in the Kamchatka Krai. We studied the technical base of fishing enterprises. The study reveals the mechanisms of renewal and modernization of the fishing fleet. It also analyzes the main innovational directions in fisheries. We conducted a quantitative analysis of staffing in the fishing industry. Based on the performed analysis, we made conclusions on several positive trends in the Kamchatka Krai fishing industry. The paper summarizes the approaches to the formation of factors of sustainable development in the Russian fishery complex. We outlined the requirements for further fishery development in the Kamchatka Krai.
A Transboundary Environmental and Tourism Cluster in Western Altai: Recreational and Geographic Substantiation
Authors: Selezneva E V , Rotanova I N
Published: February 2021

Active development of domestic and international tourism in Russian regions necessitates the creation of tourist clusters. A tourist cluster is a purposeful concentration of tourist and recreational resources, interconnected enterprises, organizations, and facilities providing infrastructure and services to meet the needs of domestic and foreign tourists. Tourist clusters are of particular importance since they attract specially protected natural areas [SPNA] to tourism. Tourist clusters are often formed in the border areas. One of the examples is a project for transboundary nature conservation and the creation of a tourist cluster in Western Altai, which includes the territories of the East Kazakhstan region and the Altai Krai. The study aims to provide a recreational and geographical substantiation and identify the prerequisites for creating transboundary nature conservation and tourist area. The project is based on biodiversity, the presence of other natural resources (comfortable climatic, geomorphological, water, etc.), little-changed landscapes, the successful functioning of protected areas of different categories (both from Russia and Kazakhstan), the presence of objects of tourist interest, attractions, and other prerequisites for the formation of an international nature conservation and tourism cluster. Using SWOT analysis, the authors analyze the prospects for forming a transboundary nature conservation and tourist cluster in Western Altai. The analysis allows us to highlight strong and weak points and to identify possible opportunities and risks. The projected cluster is assessed from the standpoint of environmental protection. The authors assessed the natural and tourist potential of the territory based on such criteria as transport accessibility, development of the territory, recreational infrastructure, anthropogenic impact, etc. The results of the conducted recreational and geographical analysis allow us to justify the design and draw conclusions about the significant potential for forming a transboundary nature conservation and tourist cluster in the Western Altai transboundary area of Russia and Kazakhstan.
Is It Possible to Change to a Circular Economy Based on Waste Recycling? An Overview of the Situation, Opportunities, and Barriers for the Altai Krai
Authors: Lobova S V , Tyryshkin V V
Published: February 2021

The growing consumption of resources in a linear economy, the associated negative impact of anthropogenic factors, and the incredibly large volumes of waste determine an increasing number of arguments for turning to a circular economy. The principles of the circular economy are designed to ensure sustainable consumption and production processes. There is a lack of empirical research on the possibility of changing the linear economy model to the model of circular economy in the Altai Krai. This paper analyzes the possibility of transiting to a circular economy based on waste circulation in the Altai Krai. The authors discuss barriers and opportunities for such a change. The main conclusions point to the lack of sufficient conditions for a change from a linear to a circular economy in the region.
The Method of Integral Assessment of the Quality of Oil Oxidized Bitumen as a Method for Selecting the Parameters of the Two-Stage Oxidation Process
Authors: Evdokimova N G , Luneva N N , Egorova N A
Published: February 2021

Based on previous research, we used a multicriteria (integral) quality assessment to determine the priority oxidation temperatures for obtaining oil road bitumen. This method allows one to select the process parameters and ensure the production of high-quality products from paraffin raw materials. Moreover, the method allows for evaluating the effectiveness of the two-stage process at different temperatures. The paper shows the results of calculating standardized coefficients and weight coefficients for each quality indicator, as well as the integral quality indicators showing the quality of road bitumen samples. The research results showed that the priority in quality is given to a bitumen sample obtained at the oxidation temperature of 200 °C at the first stage and 260 °C at the second stage. This bitumen showed the best quality compared to other samples corresponding to GOST 33133-2014, which further confirms the previously obtained results. It is established that the multicriteria integral method of quality assessment can be used in bituminous production to identify the priority quality of bitumen and determine the process parameters depending on the quality of raw materials.
Improvement quality of sugar cane bagasse as fish feed ingredient
Authors: Suryaningrum L H , Samsudin R
Published: February 2021

Sugar cane bagasse is a waste from the processing of sugar cane in a sugar factory. Bagasse is obtained about 25% of the total weight of sugar cane which is used as raw material. Nutrients contained in bagasse approximately protein 1-4%, lipid<4%, ash 2-8%, crude fiber 20-38% and NFE 52-61% (in dry weight). Lignocellulosic component found in bagasse were lignin (11-27%), cellulose (26-49%) and hemicellulose (16-33%). This research aimed to improve bagasse into a fish feed ingredient. The study was conducted using a completely random design with four treatments and three replications. The treatment is carried out by mixing pre-treated bagasse with crude enzyme extract from Bacillus subtilis [1/1], [1/0.75], [1/0.5], [1/0.25] w/v which performed at optimum conditions, i.e. 50°C, pH 5.5 and incubation time 72 hours. The results showed that the treatment [1/1] w/v gave the best results. The improved bagasse had a protein content of 24.92%, ash 6.83%, crude fibre 11.56%, (in dry weight). Dissolved protein and reducing sugar increased to 417.60 mg/L and 442.63 mg/L, respectively. Lignin decreased to 2.81%. So the improved sugar cane bagasse was feasible to be used as a fish feed ingredient.
Identification photoprotective activity of marine seaweed: Eucheuma sp
Authors: Kasitowati R D , Wahyudi A , Asmara R , Aliviyanti D , Iranawati F , Panjaitan M A P , Pratiwi D C , Arsad S
Published: February 2021

Skin cancer had become one of the most occurring type of cancer all around the world. The needs for alternative additional substance in sunscreen, especially from natural ingredients become important. Seaweed is one of marine natural resource known for its many benefits and widely used in cosmetic industries. The purpose of this research are to determine the photoprotective activity of Eucheuma sp. extract obtained from different type of solvents against ultraviolet radiation and its effect. Eucheuma sp. extracted by maceration using two different solvents (methanol and ethyl acetate). Filtrate obtained from maceration evaporated until the consistency are pasta-shaped and tested using spectrophotometer to determine the SPF, % of Te, and % Tp. The result of spectrophotometer tests evaluated and analyzed to determine which solvent generate the best value of SPF, % of Te, and % of Tp. The result of this this research showed that the highest SPF value are present in ethyl acetate extract (SPF 26.4). The best value of Te and Tp percentage are also present in the ethyl acetate extract with their respective values: 0.88% and 18.64%. The conclusion of this research are Eucheuma sp. extract had a good potential of photoprotective activity.
Spawning technique of yellowfin tuna (Thunnus albacares) infloating nets cage
Authors: Bramantya B , Gunawan  , Sari L A
Published: February 2021

Tuna is a potential commodity because it contributes the largest fishery export. Tuna aquaculture is one of the steps that can be taken to maintain the stability of tuna fishery production. The aquaculture method using floating net cages is the most productive aquaculture technique. The study has performed in the Central Research of Sea Cultivation and Fisheries Extension Gondol, Bali. The purpose is to know how the technique of spawning yellow fin tuna (T. albacares) in floating net cages. The control issues and obstacles encountered during the process of raising the broodstock yellow fin tuna. Spawning of yellow fin tuna is done naturally. Broodstock female of yellow fin tuna used from catching process that is choosing broodstock candidate of tuna fish with weight 5 kg and length +25 cm. The weight ratio of yellow fin tuna between male and female is 3:1. Water quality parameters for yellow fin tuna larva among others: temperature 29-30°C; pH 8.2; and DO 6.0 ppm. Based on the calculation, the obtained hatching raate of yellow fin tuna is at 75.34% and the Survival Rate is 0%. Artificial feeds used in the maintenance of larvae are Nannochloropsis oculate and Brachionus rotundiformes.
Effect of kappa-carrageenan on physicochemical properties of mantou (Chinese steamed bread)
Authors: Putra M H C , Abdillah A A
Published: February 2021

Carrageenan is used in the food and non-food industries as a thickener and demonstrated form gels and emulsion stabilizers. The physicochemical properties of carrageenan affect the strength of the gel that could improve texture properties. Mantou is chinese steam bread that has less tender, which generally were prefered had a soft texture. Mantou content low crude fibre and rich of carbohydrate. The aims of this study is to determine the effect of adding kappa-carrageenan to the physicochemical properties of mantou product. The research method was used completely randomized design (CRD) with five treatments and four replications. The treatment was the addition of kappa-carrageenan concentration by 0% (as control), 1.5%, 2%, 2.5%, 3%. The main physicochemical properties observed were the mantou texture and fibre content. The results of this study are the addition of kappa-carrageenan showed an effect on texture and increases nutrient fibre of mantou.
Analysis of fluctuating asymmetry of black strain tilapia oreochromis niloticus and red strain tilapia Oreochromis niloticus in Kabat Fish Hatchery Center Banyuwangi, East Java
Authors: Kurniawan D , Fasya A H
Published: February 2021

Fluctuating asymmetry of bilateral meristic traits is one of the simple methods to calculate phenotype variation and discover the stability of fish development. The aims of this research are analyzing quantitative information about the level of asymmetry of Black Nile Tilapia and Red Nile Tilapia in Kabat Banyuwangi Fish Hatchery Center (BBI) as reference breeding program at Kabat Banyuwangi Fish Hatchery Center. The length of Black Nile Tilapia and Red Nile Tilapia was 50 – 150 gram with 100 samples of fish for each strain so the total is 200 samples of fish. Bilateral meristic traits that have been observed was the number of soft pectoral fins, the number of soft ventral fins, the number of scales on the lateral line, and the first-gill filter of Nile Tilapia. The results show that the highest value of the fluctuating asymmetry of number (FAn) and the fluctuating asymmetry of magnitude (FAm) are 0.65 and 1.38 for Black Nile Tilapia and 0.6 and 1.04 for Red Nile Tilapia. However, the lowest value of FAn and FAm are in soft ventral fins which are 0.22 and 0.22 for Black Nile Tilapia and 0.37 and 0.37 for Red Nile Tilapia.
Improving crude protein and crude fat content of Seligi leaf (Phyllanthus buxifolius) flour through probiotic fermentation
Authors: Nisa A K , Lamid M , Lokapirnasari W P , Amin M
Published: February 2021

The increasing demand for fish feed causes the requirement for the raw materials of fish feed also increases. Therefore, alternative feed materials are urgently needed. This study aims to investigate Seligi leaf fermented with probiotics as an alternative for feed material. Two factors were investigated; fermentation time (5 and 7 days) and the dose of probiotics (0%, 2%, 4% and 6%). The two factors were arranged in a factorial Completely Randomized Design (CRD). Data were analyzed using analysis of variance, followed by Duncan’s Multiple Range Test for any significant differences. The result showed that Seligi leaf flour fermented with 2% probiotic and fermented for 5 days had the highest crude protein, p<0.05, while reducing the crude fat content in Seligi leaf flour. The results also showed that there was no interaction between the fermentation time and probiotic dose with crude protein and crude fat content in Seligi leaf flour. This result suggests that the nutrition value of Seligi leaf flour as fish feed materials can be improved through probiotic fermentation.
The substitution effect of bone fish flour milkfish (Chanos chanos) physical and chemical characteristics of cookies
Authors: Muzaki I , Suprapto H , Kusdarwati R
Published: February 2021

Confectionery is a relatively dry food grilled foods have lasting power is high, so it can be stored for a long time and is easy to carry while traveling, due to volume and weighs a relatively light due to the drying process. Physical and chemical characteristics of biscuits are factors that affect the quality of the final product. The content of the fish bone flour, namely: calcium 39.24%, 13.66% phosphorus, water content 5.60%, ash 81.13% bb bb 0.76% protein and 3.05% fat. This study aims to determine the effect of substitution of fish bone flour to the physical and chemical characteristics of the biscuit. This research was carried out experimentally with a completely randomized design (CRD) with 4 treatments and 5 replications. The treatment is given in the form of increasing concentration of 0% (as a control), 10%, 20% and 30%. Based on the research of fish flour of fish bones in the manufacture of biscuits to give effect to the chemical characteristics of the biscuit, but does not give effect to the physical characteristics of biscuits. The best treatment is found in treatment P3 concentration of 30%.
Identification and the prevalence of fungal gouramy (Osphronemus gouramy) in modern market Surabaya
Authors: Andreas M S , Kusdarwati R , Suprapto H
Published: February 2021

Gouramy (Osphronemus gouramy) is the one type of fish consumption that are quite popular in Indonesia. Modern market provides a wide range of needs such as fresh fish. Sales of fresh fish in modern markets in Surabaya could reach 80% annually. Required more careful handling against high transaction fresh fish in modern market including whether there is disease in fresh fish like fungus. This research aims to learn about identification and the prevalence of fungal infecting gouramy at modern market Surabaya. Results of the study showed that of the 10 samples taken fron 5 location, 7 fish showed positive fish infacted by the fugus. The fugus are Trichoderma, Rhizopus oryzae, Saprolegnea, Aspergillus flavus, and Fusarium. The value of the prevalence of fungus which infects fish gouramy is 70%.
Substitution of commercial feed with fermented banana peel flour (Musaceaea sp.) and fish meal to feed consumption level, specific growth rate, feed efficiency, fat retention, and energy retention in siam catfish (Pangasius hypophthalmus)
Authors: Aisyah A , Gustiningrum A S , Agustono  , Al-Arif M A
Published: February 2021

This study aims to investigate the effect of commercial feed substitution with fermented banana peel flour and fish meal on feeding rate, specific growth rate, feed efficiency, fat and energy retention. This study used aCompletely Randomized Designwhich consisted of 5 treatments: P0 (100% commercial feed), P1 (commercial feed 95% + 5% FTKPTI), P2 ( commercial feed 90% + 10% FTKPTI), P3 (commercial feed 85% + 15% FTKPTI), and P4 (commercial feed 80% + 20% FTKPTI). Data were analyzed usingAnalysis of Variance(ANOVA) and continued withDuncan’s Multiple Range Test. The results of statistical analysis showed that commercial feed substitution using fermentation of banana peel flour (Musaceaeasp.) And fish meal resulted in feed consumption values, specific growth rates, feed efficiency, fat retention and energy retention which had no significant differences (p> 0.05). This shows that commercial feed substitution using fermentation of banana peel flour (Musaceaeasp.) and fish meal up to a dose of 20% in feed has the same feed consumption, specific growth rate, feed efficiency, fat retention and energy retention values as well as the control feed.
Molecular identification and prevalence of ectoparasite worms in barramundi (Lates calcarifer) in Lampung Waters
Authors: Achmadi I , Subekti S , Ardiyanti H B , Amiin M K , Haryanto L N F , Akbar R E K , Yudarana M A
Published: February 2021

Barramundi (Lates calcarifer) fish is one of the fishery commodities in Indonesia which has economic value and is the most exported commodity. The problem that often occurs in the process of cultivating barramundi (Lates calcarifer) is a parasite from the Haliotrema sp. which attacks the gills and can cause a decrease in the level of fish production. One way to determine the parasite infesting barramundi (Lates calcarifer) is by conducting a molecular identification. This study aims to determine the parasites by molecular identification and prevalence rate of ectoparasite worms in the gills of barramundi (Lates calcalifer) fish in Lampung waters. A sample of 40 fish with a length of 25-35 cm was taken by using a purposive sampling method. The organs observed were fish gills, then molecular identification was carried out by using real-time PCR, and the prevalence calculations. The results of this study indicated that the fish gills were infested by ectoparasitic worms, according to the NCBI GenBank database, called Haliotrema susanae with the band at 748 bp, and the prevalence rate of infested fish with gill’s ectoparasites is 80%.
Utilization of Nitrosomonas sp and Nitrobacter sp probiotic towards total suspended solid and ammonia level in nile tilapia culturing using aquaponic system
Authors: Dwiardani K H , Prayogo  , Rahardja B S
Published: February 2021

Nile tilapia (Oreochromis niloticus) is an aquaculture commodity which has high production and tendency to be cultured in intensive culturing system. However, the latter can accumulate high amount of organic waste (leftover feed and fish feces) which will cause poor water quality by increasing total suspended solid (TSS) level and ammonia level as well. The solution to the prior problem is by using the aquaponic system with the addition ofNitrobacterandNitrosomonasbacteria in the probiotic application. Still, the effective probiotic dosage is yet to discover, so that this study aims to figure out the effective dosage of the probiotic to decrease TSS and ammonia level. This study used RAL as research design with 5 treatments repeated 4 times: control (no addition of probiotic), 0.5 mg/L, 1 mg/L, 1.5 mg/L, and 2 mg/L. The result shows that 1.5 mg/L is the most effective dosage which can decrease TSS and ammonia level into 16.18 ± 0.0571 mg/L and 0.178 ± 0.0673 mg/L respectively.
The influence of garlic (Allium sativum) and turmeric (Curcuma longa) extract as attractant in commercial feed on feeding rate and fat retention in gouramy (Osphronemus gouramy)
Authors: Pamungkas G Y , Arief M , Arif M A A
Published: February 2021

Gouramy fish known as fish that has slow growth but the demand is always increasing every year. Feed improvement can be developed by adding attractants to the feed. Attractant will produce an odor that will attract fish to eat. The sulfur components that dominates garlic is believed to be attractant, while in turmeric the terpenoid can add aroma to the feed. Furthermore, the sulfur components in garlic and curcumin in turmeric can increases fat metabolism. Feed energy can be seen from the calculation of the amount of fat consumption and fat retention. The method used in this study is an experimental method with 5 treatments; P0= control, P1; 1% garlic extract addition, P2; 1.5% garlic extract addition, P3= 1% turmerix extract addition, and P4= 1.5% turmeric extract addition. The results showed that the addition of 1-1.5% turmeric extract was able to reduce fat consumption, while the addition of 1-1.5% garlic extract was able to reduce the fat retention of gouramy. It can be concluded that giving 1-1.5% garlic extract does not affect the fat consumption of gouramy but reduces fat retention, while the addition of 1-1.5% turmeric can reduce fat consumption and doesnt affect fat retention of the fish.
Combination of biodiesel, glycerol, and methanol as liquid fuel
Authors: Rubianto L , Sudarminto H P , Udjiana S
Published: February 2021

Waste frying oil is a harmful liquid to human body and environment. However, it can be utilized as fuel. Transesterification of waste frying oil with methanol is presence of potassium hydroxide as catalyst produces fatty acid methyl ester (FAME) known as biodiesel as main product with glycerol as byproduct. Previously, several researches have been carried out concerning about utilization of both substances as renewable liquid fuel. In this research, three materials biodiesel, glycerol, and methanol which involved in transesterification process are combined in order to determine another renewable liquid fuel. Combination with composition 1:1:1 to 1:1:4 (v/v) is burned in an external combustion engine. Viscosity of glycerol is the main problem to form fuel for the engine. The result shows that the higher percentage of the methanol, the easier is the combustion. Composition by volume 1:1:4 of biodiesel, glycerol, and methanol respectively is the best mixture of liquid fuel for boiler burner.
Potential study of motorcycle parking on State Polytechnic of Malang
Authors: Burhamtoro B , Raharjo N D , Marjono M
Published: February 2021

Parking is a vehicle that stops or does not move for a while and is abandoned by the driver. requires infrastructure for parking purposes while the available land is increasingly limited. The method of field research (Field Research Method) is direct observation at the location to see the physical condition of the movement of vehicles entering and leaving the location during rush hour. Meanwhile, research on the area of parking was carried out by means of digital map measurement (Digital Map Measurement Research Method), namely by measuring based on measurement results from digital maps. The number of motorbikes that entered was 5716 vehicles, while 1373 vehicles exiting with a volume of 4546 vehicles were parked. The parking area for motorbikes is 7,480.44 m2 with a parking area of 5,217.67 m2 and a circulation area of 2,262.77 m2.
Analysis of the needs road facilities in Jalan Soekarno Hatta Malang City
Authors: Ratnaningsih D , Wahiddin W , Subagyo U , Sasongko R
Published: February 2021

Pedestrians are an element of urban transportation. The Pedestrian movement includes down the road, crossing both on the road and at the intersection. The existence of adequate pedestrian facilities is needed, including crossing facilities. The number of pedestrians on the Soekarno Hatta road is very high while gap vehicles are short so that it is difficult for pedestrians to cross. The purpose of this study was to determine the need for crossing facilities on the Soekarno Hatta street in Malang. Primary data collection was carried out on March 9-11, 2020. Analysis results obtained by the number of pedestrians is 322 people and volume traffic 4867,1 pcu/hour, PV2 = 6,3. 109 so that appropriate pedestrian facilities are pedestrian platform.
Flood analysis of Buntung River and the structural measures in Sidoarjo Regency
Authors: Sulhan R A , Hapsari R I , Efendi M , Safitri M S
Published: February 2021

Sidoarjo Regency as one of the downstream areas of the Brantas River Basin is prone to flooding. This study aims to simulate the flood discharge and inundation in Buntung River, a river passes through Sidoarjo City area with several time return periods and to discuss its physical flood mitigation. Data needed in this study are Rainfall Data for 3 Rain Stations, topography map, cross section of river stream, and land use map. Based on these data, a flood flow analysis plan is then performed using the Nakayasu synthetic hydrographs method. The inundation is simulated using HEC-RAS with 10, 25, and 50 years return periods. Based on the calculation, Buntung River flood discharge with return period of 10, 25, and 50 years return periods is 151,342, 196,923, and 233,981 m3/s respectively. The inundation extend of 25 years return period is reaching 0,53 m height above the bank along Sta. P0 to P1. The study reveals that the existing cross section cannot accommodate the design flood for at least 25 years return period. Therefore, normalization is essential for river improvement. The channel is design with river cross-sectional shape of double trapezoidal. The size of the earth dike is 0.60 m above the flood water level with 3.0 m width and 1:2 channel slope. The designed river channel improvement increase the channel depth from -3,56 m to -4,07 m in Sta. P1. The normalized channel could accommodate the design flood and would be beneficial for increasing the urban area safety from flood disaster.
Optimization of heavy equipment for earthwork in the construction of Mainroad Section X of Pandaan-Malang Toll Road
Authors: Riskijah S S , Pradipta B A , Lidyaningtyas D
Published: February 2021

The construction of Mainroad Section X of Pandaan-Malang Toll Road requires of heavy equipment for excavation and embankment works. The type and number of the heavy equipment can be varied depending upon the construction volume, equipment capacity, and the budget. Therefore, the combination of heavy equipment must be chosen carefully to minimize the cost. This study aims to determine the optimum number of heavy equipment combinations with constraints of work volume, schedule, and resources availability to minimize the construction cost. The data needed is site lay-out plan, cross section of the road, project time schedule, specifications of the heavy equipment, and the resources unit price. The method for optimization is Linear Programming using Simplex Method. The results shows that the optimum combination of heavy equipment for excavation work are 14 units of bulldozer type Zoomlion ZD160-3, 5 unit excavator type Komatsu PC200-8MO, and 19 units dump trucks type Mitsubishi Fuso-FN627 at Rp 14.839.362.044,00. As for the embankment work, the optimum equipment are 5 units excavators type Komatsu PC200-8MO, 19 units of dump truck type Mitsubishi Fuso-FN627, 19 units of motor grader type Caterpillar 120K, 18 units of sheep foot roller type Ammann ASC-200, and 23 units of water tank truck type Mitsubishi-125HD at Rp 22.979.058.760,00.
Energy harvesting using microstrip rectenna circular patch on GSM 1800MHz frequency
Authors: Aisah A , Rahman A A A , Hariyadi A , Junus M , Yoga S W , Rafli A
Published: February 2021

This research discusses the design of rectenna with microstrip antenna with frequency BTS work frequency in Malang city by using a rectifier to convert electromagnetic power into DC output on GSM1800 working frequency and use the energy storage design to be stored. Harvesting this energy is alternative energy conversion. The produced electrical power can be used by low-powered-devices. Since the obtained power is small, additional circuits will be used so that the obtained power can be stored in energy storage. The power obtained from this research is around 1 to 16 mV. It is obtained from BTS around the Malang city.
Design and analysis of a portable web-based monitoring system for electrical parameters measurement
Authors: Hidayat M N , Ronilaya F , Eryk I H
Published: February 2021

Currently, to monitor the parameters of an electrical system, including current, voltage, power, and frequency can be done remotely by using either computers, laptops, or android mobile phones, as long as those gadgets are connected to the internet. Generally, the equipment of this monitoring system is installed in a module at a fixed position. As a measurement tool, it is required that the measurement values are valid. For this reason, to ensure that the measurements shown by the remote monitoring system that has been installed are valid, another monitoring system is needed as a comparison. Based on the problems mentioned above, this research aims to design and analyse a portable web-based monitoring system for electrical parameters measurement. This equipment has a web-based monitoring system, which can remotely monitor the measurement of electrical parameters through the web. In addition, the equipment is light and portable, which can be easily moved from one place to another. Due to its advantages, this equipment can be used as a comparative tool to get valid values for electrical parameters measurement.
Design and analysis of the effectiveness smart home control systems based on using the Internet of Things
Authors: Rohadi E , Susanto H , Sarosa M
Published: February 2021

Smart homes are a set of interconnected electrical appliances to become intelligent service systems aimed at reducing human workloads, saving electricity, and improving home security. Wireless Smart Home system enhances popularity due to flexibility, portability, and low installation cost. With the availability of technology and the internet of Things (IoT), devices can collect information from the environment according to the surrounding conditions. Raspberry Pi is a microcomputer which is a primary device that can be used to control sensors and actuators. This control can be activated from anywhere, as long as the area has an Internet connection. Using the fuzzy logic method, the controls don’t need to be done manually. This method can automatically control the electronic devices in the home, using the facts in the knowledge base. The main features of the smart home are real-time, remote control, data security from intruders. Data security becomes important to access right in maintaining the confidentiality of sensitive information that may be known by the right party. Technology systems are containers created in one library, applications, and configuration files, and all that is required to be a reference to rely on.
Impedance matching system design using non uniform transmission line for 2.4 Ghz antenna system
Authors: Zakaria N , Setiyawan A , Prasetyo Y H , Wardani M K , Yulianto A W
Published: February 2021

The Matching Impedance (MI) design method using Non-Uniform Transmission Line (N.U.T.L.) is a design method that offers more advantages over the 1/4 transformer method, the 1/4 multisection method, and the stub method. In this study, the Matching Impedance system is designed to match the WLAN antenna load with a line impedance of 50 Ohm at the 2.4 GHz. The Matching Impedance system is designed using a transmission line with a Characteristic Impedance (Zo) value that is triangular (Triangular Taper) distributed. This study also examines the effect of the number of cutting sections on a transmission line if the line with the Triangle distribution is implemented on a Microtsrip. From the test results, it is found that the number of sections used to form the Non Uniform transmission line has a significant effect on the bandwidth of the system working frequency for the required value of the Reflection Coefficient.
Design of HHO generators as producers of water fuel (HHO generator product analysis based on electric current and catalyst)
Authors: Jannah Z , Susilo S H
Published: February 2021

One of the fossil fuels is petroleum fuel. Petroleum is a non-renewable natural resource. Various aspects of life have felt its effects, where fuel oil has begun to experience scarcity. The higher price of fuel oil should make us realize that the amount of oil reserves has begun to run low. The purpose of this study was to determine the effect of electrodes, current strength, and concentration of NaHCO3 on the HHO gas generator output. HHO electrode generator material made of aluminum and brass. The electrode’s shape is rectangular with a size of 250 mm x 400 mm, with a gasket seal. The test begins with the HHO gas pressure test. The independent variable used is aluminum and brass electrode variations. The electric current given is 20A, 30A, 40A, and the amount of 5-25% NaHCO3 catalyst. Then proceed with analyzing the pressure obtained on the HHO gas flow rate. To test the HHO gas flow rate carried out with a duration of 1 to 3 minutes in each treatment, the measurement of the discharge using a gas regulator to determine the flow rate of H2 and O2 produced. The results showed that the lowest gas discharge value was on aluminum electrodes with a current of 20A, i.e., 0,00033554 m3/s, while the highest discharge value on brass electrodes with a current of 50A was 0,001657 m3/s. It shows that the better the metal element contained in the electrodes and the higher the current applied, the greater the flow of H2 and O2 gas flow.
Design locomotion for automatic guided vehicles using double ackerman inverted method (2WD-4WS-1A)
Authors: Karim A M , Setiawan B , Siradjuddin I
Published: February 2021

This paper introduces a robot vehicle designed for the same forward or reverse maneuver specifications. The vehicle has two two-wheel drives with a Double Ackermann Inverted (2WD-4WS-1A) steering method for Automatic Guide Vehicle (AGV). In the batch processing system industrial estate, AGV is used for transportation in the component warehouse area. In the steering system, Ackermann’s mechanics are described as optimizing the maximum maneuvering radius of the AGV, based on the turning center point. AGV drive is designed with four wheels, two drives and one steering mechanics. The vehicle’s mechanical steering system is designed with a system geometry analysis to control the turning radius of the vehicle. The Ackermann AGV steering method that has been implemented will be tested for its maneuvers. The results of the study were measured empirically to determine the efficiency and optimization of the system in the AGV design. The efficiency of steering control using only 1 steering wheel as 4 wheel control and small optimal radius on the AGV will increase maneuverability compared to using 2 WD.
Development of smart energy meter to measure energy saving of dimmable LED panel light
Authors: Parastiwi A , Prasojo R A , Adzani M N H , Safitri H K
Published: February 2021

Conserving energy is important now more than ever. Dimming lamps to the required illuminance is one way to reduce the energy usage. Technological advancement in the form of new materials, sensors, and apparatus allows us to reduce the energy usage of an equipment. To obtain a clear understanding of consumer energy usage, a smart meter which is able to monitor and store energy usage characteristics can be a useful tool to have. This paper discusses the development of multi-points smart energy meter using ESP32, ZMPT101B voltage sensor, and SCT-013 current sensor. The measurements result of the meter developed has been validated using commercial energy meter. A 35 W dimmable LED panel light benefitting dimming function in QH7938 chip has also been constructed. The dimming characteristics were obtained, with the output luminous flux of 5644 to 950 lumen, and power input of 35 to 5.32 watt. Subsequently, the energy saving case scenario in 2.5 x 2.8 x 3 meters home office with various natural lighting condition were also presented.
Design of flow control system based on PLC armfield pressure control module in chemical engineering laboratory
Authors: Suharti P H , Kristiana H M , Amalia R N
Published: February 2021

A control system in industry has an important role to increase the effectiveness and efficiency in manufacture process. Laboratory of Chemical Engineering Department in State Polytechnic of Malang has several tools to develop competence in automation process control system, one of them is the pressure control module. This module aims to control the rate of compressed air flow coming out from the compressor. Nonetheless, the control system used is still analog. In order to improve the performance of module, rejuvenation has created by PLC that is optimized by PID controller method. This rejuvenation process is carried out in several stages, such as designing PLC hardware and software then testing and analyzing the system. There are four stages in testing and analyzing the system, both testing and analyzing the open loop system without tank and with tank, PID close loop with tank and without tank. Based on the results, this study indicated that the close loop system with PID has a better response than open loop system, which is able to improve the errors and transient responses so that the system is more stable and fit with set point value. The PID parameter that produces a good response when used in the pressure control module is Kp = 100 Ki = 1 and Kd = 0. This parameter is able to produce a system measurement value of 80% with error of 0%.
Prediction of student graduation accuracy using decision tree with application of genetic algorithms
Authors: Maulana A
Published: February 2021

Many of students who can’t complete the study promptly is a problem that needs to be faced with a fast and effective way. In the student’s education system is an important asset to the note the graduation rate of students promptly. Predicting graduation is very important for the institution to determine the strategic policies for the institution. The scope of the study is limited in performing accurate comparison between studies that only use Genetic Algorithm method and the research-based Genetic Algorithm using forward selection. Here we can conclude that the value of the highest accuracy is there in the Genetic Algorithm-based method Forward selection. Thus the Genetic Algorithm method with the selection of attribute-based Forward Selection is the best method for solving a problem in the prediction accuracy of graduation.
The development and analysis of an information system for incentives publication of reputable indexed international journal and national journal (Case study State Polytechnic of Malang)
Authors: Rohadi E , Amalia A , Kusumah D K , Fahrezi G A A , Sabilla W I , Siradjuddin I
Published: February 2021

The research activities in The State Polytechnic of Malang addressed to achieve the output as articles, intellectual properties, and product innovations. The incentives are given to the researchers who publish articles in reputable publishers due to increasing the articles in both numbers and quality. In this work, an information management system of publications is developed and analysed. The system is integrated into the staff database in order to relate with yearly staff performances. In the system, articles are categorized according to classification as International and National publications. Furthermore, both the International and National Categories are classified as a reputable and accredited publisher, respectively. The proposed system has tested by administrators in each unit and randomly staffs as respondents to fill the questioner. The result shows that the management system can be operated by an administrator in each unit and the staffs do not have difficulty to use the proposed system. It means the proposed system can be applied in The State Polytechnic of Malang.
Web application implementation of Android programming learning assistance system and its evaluations
Authors: Syaifudin Y W , Funabiki N , Kuribayashi M , Mentari M , Saputra P Y , Yunhasnawa Y , Ulfa F
Published: February 2021

Currently, Android has been installed on more than 70 percent of the smartphone devices in the world, which has significantly increased the need for Android-based application engineers. Many IT departments in universities and professional schools have included the Android-based programming into the main subjects. To improve Android programming educations, we have developed Android Programming Learning Assistance System (APLAS), a platform to accommodate the students learning Android programming independently. APLAS adopts the test-driven development method to realize automatic validations of students’ answers to the programming assignments. Previously, APLAS has been implemented as a desktop offline application. In this paper, we present a Web application implementation to manage the learning activities online. This implementation consists of three main parts, namely, Validator, Web Interface, and Database System. To evaluate the effectiveness, we offered three learning topics, Basic UI, Basic Activity, and Advanced Widgets, into this Web application, and asked 60 students in Indonesia to solve them. The results showed that the Web application has well been accessed and smoothly utilized by them. The reliability of the validator program was confirmed by handling more than 180 submissions.