bluuebunny/crossref_metadata_2025 huggingface dataset:
Environmental Factors Supporting Mangrove Ecosystem in Semarang-Demak Coastal Area
Authors: Irsadi Andin , Angggoro Sutrisno , Soeprobowati Tri Retnaningsih
Published: October 2019

Since the 1990s, the Semarang-Demak coastal area experienced abrasion. To protect abrasion, there have been many attempts such as planting mangroves, in which its development has shown success. The purpose of this study was to analyze environmental factors that play a role in the growth of mangroves ecosystem in the Semarang-Demak coastal area. Mangrove data were obtained by field studies using the transect method in three coastal areas. Each station is determined by the next station with five plots of size 20 m x 20 m. Data on supporting environmental factors are measured in each area including temperature, salinity, pH, light intensity, nutrients, and rainfall. Based on the results of analysis and calculations, the order of important values from large to small is A.marina, A.alba, R.mucronata, S.casseolaris, and R.stylosa, while environmental factors still fulfill mangrove growth. However, it needs to be aware of the increase in waves and temperatures that could threaten the survival of mangroves.
Epipelic Diatom Communities in Pengilon Lake Dieng, Central Java
Authors: Soeprobowati Tri Retnaningsih , Jumari  , Hariyati Riche , Wulandari Fini
Published: October 2019

Diatom communities in the lake have an advantage of environmental assessment and paleo reconstruction study, due to the ability of diatom preserved in the sediment. There are only limited studies about taxonomy, ecology, and diversity of diatom flora in tropical areas, especially Indonesia. The main objective of the research is to describe the structure of benthic diatom communities in Pengilon Lake, together with physical chemical variables. Sediment samples were collected at an altitude of more than 2,000 msal habitats with pH around 5.40-6.86. A total of 83 diatom species identified as belonging to 16 families. The diversity index ranges from about 2.25 to 3.01 indicated the ecosystem that naturally stable with none diatom dominant. The most abundant genera were Eunotia with high diversity around 14 taxa. The composition of Eunotia assemblages was different among habitat and season variation. Eunotia has a wide tolerance of pH because of its ability to survive in an area with an acidic environment and circumneutral water. The most dominance diatom species in Pengilon Lake were Eunotia paludosa (Grunow) 39.2%, Nitzschia frustulum (Kutzing) 28.1%, Pinnularia viridis (Krammer & Lange-Bertalot) and Pinnularia divergentissima (Grunow) 24.6%.
Potential Sustainability of “Kampung Iklim” Program in Surakarta Municipal
Authors: Dewi Atur Ekharisma , Maryono Maryono , Warsito Budi
Published: October 2019

Revolution 4.0 is one global transformation impact on increasing greenhouse gas (GHG) emissions, climate change problems. Climate Change is one of the global issues of concern and is included in the objectives of the SDGs (Action on Climate Change). Data from the Strategic Environmental Assessment (KLHS) of Surakarta, Climate Change as one of the strategic issue factors in sustainable development in Surakarta Municipal. This research aims to identify variables indicators that influence the potential for sustainability of the “Kampung Iklim” Program in Surakarta Municipal. This paper is a literature study, observation and interview key person in the field. Approaches with Social, Ecology and Economic aspect to measure sustainability “Kampung Iklim” Program in Surakarta Municipal.
Environmental-based budget planning in The Tegal Regency Government
Authors: Hidayattuloh Mohamad Heri , Bambang Azis Nur , Amirudin A
Published: October 2019

Environmental problems in Tegal Regency have become complex and not handled well. Some of the factors causing environmental problems that have not been handled properly are the low commitment of the regional government to prioritize environmental interests in regional development priorities and the low awareness of the community towards the environment. However, budget allocation for environmental sector is still considered low, i.e. 1.48 %. This low budget allocation requires a priority scale to overcome environmental problems in Tegal Regency. This study aims to determine priorities in sectors and policies in environment-based budgeting in the Tegal Regency Government. The research method used is a quantitative approach. The analytical tool used is the Analytical Hierarchy Process (AHP) method with the help of Expert Choice. Based on the results of the study that the waste sector is a priority sector and the procurement of garbage trucks is a policy priority in environment-based budget planning in the Tegal Regency Government
Land Suitability of Settlements in West Palu District, Palu City
Authors: Santoso Selamet , Rudiarto Iwan , Luqman Yanuar
Published: October 2019

A settlement is an important requirement for humans. Increasing the number of residents has encouraged additional needs for residential land while the amount of land has not increased. It is necessary to analyze the suitability of residential land to create decent and safe settlements from disasters. This study analyzes the suitability of residential land in the West Palu District based on the criteria of terrain slope, distance to the road network, the distance of educational facilities, the distance of health facilities, distance of trade facilities, and disaster vulnerability. The results of this study obtained a percentage of the area for unsuitability class 28.84%, marginally suitable 18.44%, suitable 34.93%, and more suitable 17.79%.
The Analysis of Ecological Footprint at Farming Production Centre Cluster of MIFEE Program in Merauke Papua
Authors: Djaja Irba , Purwanto P. , Sunoko H. R. , Muslihudin Muslihudin
Published: October 2019

The heading Ecological footprint is one of the methods developed to respond sustainable development issue expected to measure the availability and usage of natural resources affecting the ecology of environment. The purpose of this study is to count the value of ecological footprint at Farming Production Centre Merauke through the supply and demand approach based on GFN (Global Footprint Network) and count the capacity of environment. The method used wasGlobal Footprint Network, and counting capacity method. The results of ecological footprint counting was 29.9536 gha/inhabitant and the value of bio-capacity (supply) was gha/inhabitant, so the ecology (environmental support) value was 1,1936gha/inhabitant. The results show that the Farming Production Centre is categorized into ecological surplus and the capacity is 36,8964inhabitants/ ha. The value shows that the environment and ecosystem condition in the development area of Farming Production Centre in Merauke, Merauke Integrated Food and Energy Estate, is able to accommodate the needs and support the people living in the area (ecological debt).
The Impact of Pupuk Kaltim's Creating Shared Value (CSV) program for Fishermen on Tanjung Limau Bontang
Authors: Ekowati Sri Djuwani , Hadi Sudharto P
Published: October 2019

70% of Bontang area is ocean. There are two large factories in Bontang, they are PT. Pupuk Kaltim (PKT) in Bontang Utara District and PT. Badak NGL in South Bontang District. Pupuk Kaltim's CSR implementation, since the operation of the factory from 1979 to 2015, is still charitable. Thus, the implementation of CSR does not have much impact on both the community and the company. Local people often protest the company by using environmental issues, namely the large number of dead fish caused by environmental pollution from PKT factory’s liquid waste. They sometimes close the ship's entry and exit lanes from the PKT's factory port. In 2016, PKT implemented the Creating Shared Value (CSV) program at Tanjung Limau. This program is a program for sharing the results of PKT CSR with local fishermen through lobster and grouper cultivation on Floating Net Cage (FNC). The aim is to identify the economic, social and natural impacts on Tanjung Limau fishermen groups who are members of the PKT CSV program. Data was collected from BMTFEC diaries from 2016 to 2018 through Focus Group Discussions (FGD), interviews, and questionnaires. The results show that the income of members of the fishing group ranges from IDR 2,000,000 per month, is more environmentally friendly, members of the fishing group increase, and they get access to new markets.
Potential of Eco-Efficiency Application to Small-To-Medium Industry of Tofu Cluster in Pesalakan, Adiwerna Village, Adiwerna District, Tegal Regency
Authors: Suryoko Sri , Hadi Sudharto P , Purwanto
Published: October 2019

Tofu is a highly popular food in Indonesia. Its production process also has a high risk of environmental pollution. There were many and high capacities of tofu makers in the tofu clusters of Pesalakan, Adiwerna Village, Adiwerna District, Tegal Regency. Due to its high pollution risk, this industry needed an eco-efficiency analysis. Using cleaner production practices the good eco-efficiency potential might be achieved so that the environmental quality can be improved. This study collected data from informal interviews, field observation, and production process calculation. The cleaner production practices by boiling water in a cover pan by energy source resulted in the following efficiency rates: sawdust 31-37 % energy efficiency and 27-30 % time efficiency; and husk energy 35-57 % energy efficiency and 20.7-20.9 % time efficiency. The highest annual eco-efficiency rate for profit was Rp 1,194,251.01/ton of CO2 equivalent/year, while the lowest rate was Rp 472,804.89/ton CO2/year. The small industry could never manage to practice the eco-efficiency without support from the government and the community.
Participation of Society In Decision-Making By Government In Industrial Revolution 4.0
Authors: Putrijanti Aju
Published: October 2019

The government environment policy is important because as a guide to plan the use of environment and society as a bundle of nations interest due to industrial revolution. The industrial revolution is a challenge for government to maximize this revolution to enhance the management of environment in order to fulfill the human rights environment without ignoring the capacity and reuse of environment. The method of this article is normative approach by analyzing the related regulations and comparative approach. The issue is how the government make policy in coming industrial revolution. The neglected of society needs will cause damage of environment. Government has to move to new paradigm of decision-making process, by using the participation of society. Theory of development of law which had been introduced in Indonesia for some years ago was inspired by Roscoe Pound and Eugene Erlich’s theory, which might be used to support the government. The multi-level governance which develops in European Union gives influence in paradigm shift of government. The integration between theory of development of law and multi–level governance is important to use by government to embody the welfare state.
Fuzzy Logic Method Design for Landslide Vulnerability
Authors: Wardhana Made Dandy , Sofwan Aghus , Setiawan Iwan
Published: October 2019

Landslide is one of the most frequently happened disasters in Indonesia due to weather and climate characteristics, regional topography, and geological structures that make this country have many potential landslide areas. The main goal of this study is to apply fuzzy logic to the landslide detection sensor so that it is easier to find out areas prone to landslides. The fuzzy logic method uses five parameters to analyze the landslide area. These parameters are rainfall, land slope, moisture content in two different soil depths, and ground vibration. They are used to determine the vulnerability level of landslide area is very safe, relatively safe, relatively potential, potentially and very potential. Fuzzification, inference, and defuzzification performed on each data in the analysis process to determine the vulnerability of landslides, and the parameters and weighting rules are according to government regulations. From the results of the study, it was concluded that intelligent systems based on fuzzy logic can be used to determine the level of vulnerability of landslides in a specified area.
Removal of Iron using Isolated Bacteria (Vibrio alginolyticus) in seawater at Ship Dismantling Area
Authors: Titah Harmin Sulistiyaning , Pratikno Herman , Moesriati Atiek
Published: October 2019

The ship dismantling activity can cause heavy metal pollution in the environment. One of technology to remediate is bioremediation using bioaugmentation and/or biostimulation methods. The purpose of this research was to determine the removal of iron by Vibrio alginolyticus and nutrient addition. Vibrio alginolyticus was halophilic bacteria that isolated from seawater at this area. The laboratory test was conducted using size erlenmeyer of 250 mL. The 5% (v/v) of Vibrio alginolyticus suspension was added in each reactor. After that, the nutrient with ratio of C : N : P (100 : 10 : 1) also was added in each reactor. The removal test was carried out for 14 days. Concentration of iron was analyzed using Atomic Absorption Spectrophotometers (AAS). Based on the results, the percentage of iron removal at location 1 with treatment was 94.9 ± 3.6%. It showed a higher value than compared to iron removal at control 1 which was only 50.4±1.8 %. Whereas at location 2, the percentage of iron removal with treatment reached 53.7±13.1% and it was only 16.7±13.1% at control 2. This indicated that the treatment of the addition of Vibrio alginolyticus and nutrients can improve the iron remediation process.
Removal of Chemical Oxygen Demand in Brackish Water by Rhizophora mucronata using Reed Bed System Batch Reactor
Authors: Titah Harmin Sulistiyaning , Purwanti Ipung Fitri , Pratikno Herman , Chimayati Rachmi Layina , Handayanu
Published: October 2019

River pollution can cause coastal pollution due to many pollutants can not remove during water flow from upstream to downstream. River has a capability to do self purification to remediate many pollutans, but wastewater disposal occurred at along the river. One of pollution parameter that caused by organic pollutant was Chemical Oxygen Demand (COD). In this research, the design of reactor was adapted from reed bed system commonly used in constructed wetlands. The purpose of the study was to determine the COD removal by Rhizophora mucronata using reed bed system reactor. There were 8 reactors, with duplo replicates, namely RM15 and RM 25 for treatment with Rhizophora mucronata at 15 ‰ and 25 ‰, respectively, and RMVA15 and RMVA 25 for treatment with Rhizophora mucronata and addition of Vibrio alginolyticus, respectively. Parameter of COD was determined using digestion reactor and spectrophotometer. Based on the results, the highest removal of COD reached 82.06% after 14 days at reactor of RM15. The highest of removal COD with addition of Vibrio alginolyticus was 80.89% after Day 2 at reactor of RMVA15. In conclusion, the Rhizophora mucronata that was grown at reed bed system reactor demonstrated can be used in removing organic matter.
Hybrid advanced oxidation process (HAOP) as an effective pharmaceutical wastewater treatment
Authors: Mukimin Aris , Vistanty Hanny
Published: October 2019

Pharmaceutical wastewater may contain bio-refractory and toxic compounds that cannot be treated by microbiology methods. In addition to low efficiency, bacteria will be collapsed and biomass wash-out will occur and be detected as TSS. Hybrid advanced oxidation process (HAOP), based on the electrochemical method, is highly potential for degradation of stable compounds. Cylinder cathode made of carbon cloth was paired with Ti/PtIr anode and inter-electrode distance of 1-3 cm. The cell was equipped with a magnetic stirrer to improve the oxidation-reduction on the surface of the electrode thus enhancing contact between pollutant and generated oxidator. Applied at electrolyte of 4000 mg/L, ferrous sulfate of 0.2 mM, and pH value of 2.5, HAOP showed an excellent performance and reached 60%, 90%, and 94% of COD reduction after 3, 6, and 9 hrs.
Personal Care Wastewater Treatment With Electro-coagulation and Electro-oxidation
Authors: Ardhianto Rachmad , Bagastyo Arseto Yekti
Published: October 2019

Personal care wastewater contains pharmaceuticals and personal care products (PPCPs). The compounds were in organic pollutants which have to be treated before water can be discharged. Electrochemical processes such as electro-coagulation and electro-oxidation were used to remove non-biodegradable in wastewater. Electro-coagulation as pretreatment using aluminum electrodes as anode and cathode. Electro-oxidation using Ti/Pt, and Ti/IrO2 as anode electrodes and variation of current 0,6 A, 0,7 A, 0,8 A and 1,0 A. Aluminum electrodes has effectiveness in removing COD, and TSS in electrocoagulation. Using aluminum electrodes remove COD, and TSS 76.1% (5.41 g) and 90.3% (6.10 g). Under initial pH, aluminum electrode does not cause a change in pH from initial pH (4.8-4.9). The removal efficiency of electrooxidation process using aluminum electrocoagulation effluent COD using Ti/Pt and Ti/IrO2 were 34,30% (1,55 g) and 39,71% (1,80 g). Increasing current when using Ti/IrO2 causes the COD removal rate to be more effective than using Ti/Pt. removal COD with 1.0 A gave the optimum COD removal were 34,30% (2,3 Ah/L; 1,55 g) with Ti/Pt, and 39,71% (2,3 Ah/L; 1,80 g) with Ti/IrO2 compared to 0,6 A (1,4 Ah/L), 0,7 A (1,6 Ah/L), and 0.8 A (1,9 Ah/L).
Performance of Aerobic Microbial Granules in Organic Carbon Removal as a Method in the Treatment of Biodegradable Wastewater
Authors: Setianingsih Nanik Indah , Hadiyanto  , Sudarno  , Yuliasni Rustiana
Published: October 2019

Conventional biological wastewater treatment is effective in removing organic carbon but has weaknesses in need large area, long hydraulic retention time, produce excess sludge in activated sludge system and need post treatment for removing nutrient in the anaerobic system. Aerobic microbial granules is a biological method in wastewater treatment that potential to overcome the lack of conventional biological treatment. Aerobic granules were developed in SBR made of glass with an effective volume of 10 L. Acetate was used as a source of carbon with COD concentration 900-1200 mg/L. SBR was run in anaerobic and aerobic phase with a hydraulic retention time of 8,3 hours and an exchange ratio of 60%. Granules begin to be formed after 14 days operational period with SVI30 to SVI5 ratio reach on 0,97 and settling velocity 13,8 cm/minute. High performance in degrading organic carbon is shown by aerobic microbial granules system with removal efficiency reaches on 94-97%.
Reduction of Fatigue Levels of Workers in the Construction Worker by Consuming Banana Chips with the Vacuum Frying Method
Authors: Christi Wina Adalea , Suwondo Ari , Setyaningsih Yuliani
Published: October 2019

Human life can not be separated from daily activities, where the body needs adjustments for a long time. The body's ability to adjust can be reduced because the body has a threshold value. Fatigue will arise when doing activities with a high workload and within a period of time Fatigue is a condition of decreased physical activity, work motivation, and loss of efficiency and endurance after work activity. The purpose of this study is to prove the effectiveness of giving bananas (Musa Paradisiaca) by vacuum frying to the level of fatigue in Construction workers Quantitative research methods with quasi-experimental design Research variables include: age, years of work, smoking habits, and length of work hours. The results showed that there was a decrease in the level of fatigue of workers after being given bananas with a vacuum frying technique for 10 days. Benefits of buyers This program is to provide input to the work environment in the construction sector to pay attention to alternative supplements that can be consumed by workers to reduce work fatigue. This research is expected to be one of the policies that must be considered by construction companies for the work safety and health of their workers.
Municipal Solid Waste Management Using Bioreactor Landfill in the Treatment of Organic Waste from Jatibarang Landfill, Semarang-Indonesia
Authors: Oktiawan Wiharyanto , Wisnu Wardhana Irawan , Sutrisno Endro , Gorat Domuanri , Rizky Rizaldianto Alfian
Published: October 2019

Landfilling is one of the easiest methods to be applied in the management of municipal solid waste (MSW). In its development, bioreactor landfill methods that have various advantages over conventional landfill emerge. This experiment aims to study the use of bioreactor landfills for the management of organic waste in Jatibarang Landfill, Semarang-Indonesia. There are 4 bioreactor landfills operated: 2 anaerobic bioreactors with leachate recirculation and addition of water, and 2 aerobic bioreactors. Different results are shown from these two types of bioreactor, where aerobic bioreactors reach peak temperatures (55oC each) faster even though anaerobic bioreactors reach higher temperatures (60oC and 61oC respectively). Anaerobic bioreactors reach a higher final pH value than aerobes while the accumulation of nitrogen content from an aerobic bioreactor is 2 times higher than anaerobes.
Factors Affecting Waste Generation: Household Study in Palangka Raya City, Central Kalimantan
Authors: Herianto H , Maryono M , Budihardjo Mochamad Arief
Published: October 2019

Domestic waste from households is the biggest contributor to municipal waste management. Palangka Raya City is one of the cities that faces waste problems due to lack of awareness of the citizens. The culture of dumping garbage into river bodies is common for residents who live along the river banks. This study aims to determine waste generation and the factors affecting waste generation of household in the Palangka Raya City. The measurement of waste generation was carried out in accordance with the guidelines of SNI 19-3964-1994, while the variables that are suspected to influence the waste generation were collected by the questionnaire. To find out the factors affecting waste generation, data were analyzed by multiple linear regression. Based on the results of research conducted on 48 respondents obtained household waste generation in Palangka Raya City is 0.33 kg/person/day, while significant factors affecting waste generation are concern for the environment and income levels at a 95% confidence level and the number of family members at the 99% confidence level. While the recycling knowledge, education level, house size and installed electrical power did not significantly affect waste generation. With this information, it can be calculated the needs of TPS, the needs of the transport fleet, the needs of cleaning staff and plans for controlling household waste generation in the Palangka Raya City.
The Study of Solid Waste Management to Extend the Lifetime of Sukoharjo Landfill, Pati Regency
Authors: Viantikasari Mei , Purwanto P , Budihardjo Mochamad Arief
Published: October 2019

The waste generation increases along with the increase of population and then the percentage of waste services is increasing every year so the capacity of Sukoharjo landfill becomes decreasing. While to find a suitable location for new landfill sites that are completed requirements of regulation is difficult. It is needed some actions to extend the lifetime of Sukoharjo landfill, one of them is application 3R (Reduce, Reuse, Recycle) mechanism in waste management. This study aims to analyze the lifetime of Sukoharjo landfills with the mechanism of Reuse, Reduce and Recycle (3R). The method used in this research is quantitative and qualitative methods. Based on the calculation, the landfill only available until 2022. The existence of composting and recycling of anorganic waste, landfill lifetime will extend until 2025. Our results show that there is a significant comparison of the volume waste in landfills between untreated incoming trash with treated by Reduce, Reuse, Recycle (3R) mechanism. By 2028, the waste generation in a landfill will be 24,821,724 kg. During composting (30%) and recycling of anorganic waste (15%), the volume of waste in landfill is reduced to 14,401,796 kg.
Estimation of Waste Generation from Tidal Flood in North Semarang Sub-District
Authors: Denicko Roynaldi All , Maryono Maryono
Published: October 2019

Tidal floods often occur in North Semarang Sub-District due to rising sea levels. One of the impacts is waste generation. Waste management is needed to prevent environmental degradation. An important factor is quantity of waste for the management plan. The purpose of this study to estimate waste generation from tidal floods. Scenario models are needed to find out the area affected because there is no existing data. Scenario data uses DEMNAS, land subsidence data, tidal data, and Sea Level Rise data. The Admiralty method is used to determine the Highest High Water Level (HHWL) value, the quantitative spatial method for the tidal flood scenario and the estimated quantity of waste. Calculation of the HHWL value of 1.16 m is added to the SLR data. The result of tidal flood height is 1.27 m. There are three affected villages (Panggung Lor, Bandarharjo, and Tanjungmas) and affected area is 55.95 Ha. The accuracy rate is 82.86% which is tested using Confusion Matrix. The results of the scenario model are arranged in a grid and then sampled. The estimated waste yield is 70,095.26 kg. The benefits of this data are to facilitate cleaning agent in waste management including cost and technical planning.
Did We Need Low Energy Campus Mosque?
Authors: IR Harsritanto Bangun , Nugroho Satrio , Ghafirin Muhammad Denton Alif , Prabowo Aditya Rio
Published: October 2019

Campus mosque is the center of Moslem Civitas Academica’s in worshiping/salah. Undip as one of the biggest university had build low energy campus mosque on Tembalang. However, the built mosque might not provide the people demanded during the worshiping. This study was performed by literature review (ASHRAE and tropical building Physic), direct thermal investigation (air temperature, humidity and speed), and worshiper’s satisfaction questionaires. The results were contradiction between worshipper opinions and thermal energy tests.
Meta-analysis of community’s adaptation pattern with tidal flood in Pekalongan City, Central Java, Indonesia
Authors: Kartika Fara Dwi Sakti , Helmi Muhammad , Amirudin
Published: October 2019

In the last two decades, northern coast Java Island occasionally experienced a tidal flood. One of area that affected by tidal flood is Pekalongan City, a small city in Central Java. Many studies have been conducted to investigate this issue. The area of investigation includes physical damage and people’s adaptation with tidal flood. This paper tries to explore people’s adaptation pattern in Pekalongan City with tidal flood. The meta-analysis approach was adopted as there are many papers that had investigated this phenomenon. This paper shows that community’s adaptation patterns in Pekalongan city tidal flood are divided into two response patterns, cognitive map and artifact patterns. These patterns have produced a new way of life or culture in the community. By understanding how people adaptation with tidal flood, hopefully, scientist and policymaker can bring more appropriate solution or policy to help people’s adaptation with tidal flood or how they minimize tidal flood effect in more sustainable way.
The Function of Traditional Snacks and Fruits at Chinatown Semarang - A Case Study on Semarang Northcoast Maritime Culture
Authors: Kepirianto Catur
Published: October 2019

Traditional snacks and fruits are the culinary culture of Chinese community to fulfill Chinese daily consumption and ritual activities in Chinatown Semarang. It is a particular characteristic of social and local culture. As local wisdom, it provides a local value of the food products. This study aims to reveal varieties and functions of traditional snacks and fruits in Gang Baru traditional market Semarang. This research refers to theory and method of naming system and function. It is in a descriptive qualitative manner and describes names and functions of traditional snacks and fruits for ritual functions. The red and golden colors of snacks and fruits symbolize the source of fortune and wealth. Traditional snacks and fruits for the Chinese community function as ritual media to give offerings to ancestors rather than for daily consumption. The meaning and function of traditional snacks and fruits symbolize the fortune, luck, wealth, harmony, love, sharp mind, happiness, long life, calm and steady hearted, sincerity, blessing, and salvation. Hopefully, there would be a social impact to challenge the Industrial Revolution 4.0. It seems to refresh social paradigm and to recognize the high value of local wisdom, local skill, social skill, local ingredients, and local product.
The Dynamics of the Community of Kampung Batik Semarang in Overcoming Slumness
Authors: Suliyati Titiek , Yuliati Dewi , Subekti Slamet , Handayani Tri
Published: October 2019

At the beginning of its growth, Kampung Batik developed rapidly as a center of batik production and as a residence for residents of Semarang and its surroundings. Kampung Batik then became a very crowded, slum village and became a hotbed of crime). The Kampung Batik in 2016 was designated as a Thematic Village by the Mayor of Semarang. This has aroused public awareness to improve the village, both physically and socially. Changes in Kampung Batik from slum villages to clean and beautiful villages deserve to be studied because of the large role of the community in managing the village environment. The problem examined in this article is how community management in Kampung Batik is carried out so that it can transform slums into beautiful villages. Because the study of this article discusses the process of change and development of Kampung Batik, the method used is the historical method, the stages of which are heuristics (source collection), criticism, interpretation, and writing facts). The conclusion is that the Semarang City Government program to create a Thematic Village has a positive value. Kampung Batik, which has been arranged, has become one of the tourist destinations in Semarang.
Explaining the Natural Materials of Traditional Kitchen Appliances In the Javanese Coastal Communities Based on Internal Structure Formation of Lingual Units
Authors: Suryadi M. , Tiani Riris
Published: October 2019

The purpose of this study is to describe the traditional kitchen appliances used by Javanese women. This explanation is based on deciphering its shape and structure, and semantic deciphering. The natural materials used are always environmentally friendly and have a trustworthy charge that can be delivered transparently or clandestinely, The research method used was descriptive qualitative. The methods of collecting the used data were observation, and in-depth interviews. The method of research analysis was by decomposing the lingual unit component of the traditional kitchen lexicon compiler from the derivative word into a basic form by utilizing the technique direct divide elements in the units of form and meaning. The findings of the research are the rules of forming lingual units for traditional kitchen appliances from the basic forms to derivative forms. The rules of formation in the word formation are produced by lexicon reconstruction, while the rules of formation in the meaning field are generated by semantic developers originating from coastal culture. The description of natural material based on the analysis of the internal structure of lingual units is obtained by the coherence of circular relations: sign-concept-functions-cultural values-sign.
The Development of Cultural Value of the Activities of Eating in the Communities of Javanese Coastal Area through the Reconstruction of Semantic Components
Authors: Suryadi M. , Astuti Sri Puji , Amin Mujid F
Published: October 2019

This study is aimed to develop and enhance the roots of Javanese culture which are oriented towards the activities of eating in the social culture of coastal Javanese communities. Social culture contains the pillars of harmony and politeness. The harmony derives from noble values and politeness derived from the principle of cooperation in the context of speech acts. The research location was in Semarang city, especially in the rural area. This type of research is qualitative. The methods of data collection were observation, in-depth interviews, and focus group discussions (FGD). The methods of data analysis were semantic component reconstruction, lexicon mapping, and the settlement of lexicon elements in Javanese culture. The result of the research is the development of methods in the form of semantic component reconstruction. Reconstruction of semantic components involves four pillars of analysis: value-referent-concept words. Another finding, in the form of the design of the development of cultural values of eating activities, can be done through the hierarchy of speech acts. The enrichment of lexicon eating activities can be done through word alignment or paraphrasing.
Preserving Javanese Culture by Junior Highschool Students in Northern Semarang District as Javanese Language Environment to Promote Local Tourism Industry
Authors: Sundari Wiwiek
Published: October 2019

Culture is system of idea and act as a result of human creation. A culture becomes history when their community leave it. A language, as part of culture, becomes dead when a speech community leave it. Preserving culture and language is important to keep our identity and civilization. This research shows how Javanese speech community keep their use of Javanese to maintain their culture in Northern Semarang as Javanese environment by taking the data from Junior Highschool students. The result shows that most of them still maintain Javanese, especially the lowest level of Javanese (Ngoko) to talk to their friend in casual situation. Few of them understand the highest level of Javanese (Krama) to honor the older. They are also able to write and read Javanese letters since it is taught as a school subject with local content. Javanese language and culture maintenance is supported by the local government to promote Semarang tourism industry to gain more benefit for the local people and the local government. Preserving culture by maintaining the language must be supported by the environment by using it in daily conversation and teaching it in school to make the young generation understand and use the language.
The Linguistic Landscape of Kampung Bahari Presenting the Coastal Community Development of Tambak Lorok Semarang
Authors: Nirmala Deli
Published: October 2019

Kampung Bahari Tambak Lorok Semarang being prepared for a new potential tourism destination is changing not only in its infrastructure but also its social behavior. The changing infrastructure changes social structure, social belief, and social identity. The changes may be integrated in many aspects like environment, literacy, education, and economy. This paper aims at discovering the linguistic landscape which promotes the coastal community development of Kampung Bahari to create Kampung Bahari to be a nicer place to live and to visit. It seems that waste is an important problem in Tambak Lorok in order that this can make Kampung Bahari clean and be visited by many domestic or foreign tourists. The public signs indicating the facilities including waste management of the coastal community at Kampung Bahari were captured and analyzed using abductive inferential method. The result shows that the linguistic landscape of the development of Kampung Bahari indicates that Kampung Bahari has infrastructure which shows social awareness on environment, provides the community needs in economy, health, and literacy. The needs can be identified through the public names like Taman Baca Seroja indicating literacy activities, Koperasi Simpan Pinjam for banking system, Masjid Sholaha for spiritual needs. Komunitas Camar Peduli Lingkungan indicates environmental awareness and care. This study gives contribution to linguistic landscape study in terms of the contribution of linguistic study to regional development issues.
Potential of Hydrogen Production Through Alkaline Water Electrolysis Using Solar Radiation Around Semarang
Authors: Widarningtyas Ruth Pranindia , Sulistyo  , Widayat
Published: October 2019

Indonesian society’s dependence on fossil fuel and the minimum GHG emission reduction target of 11% for the energy sector, encourages the development of hydrogen as an eco-friendly renewable energy resource for transportation and industries sector. Electrolysis is one of technology for hydrogen production. Electrolysis technology that utilizes the sun as a generating source is a eco-friendly technology of hydrogen production. The solar intensity in Semarang is 5.49 kWh/m2/day so that is potensial to used for hydrogen production. Solar intensity measurements were carried out in 2 locations in Semarang that have different altitude using single and parallel monocrystalline solar modules with observation from 8am-4pm. The measurement results are used as data for calculated the flow rate and the volume of hydrogen that can be produced. The highest hydrogen volume can be produced in Marina for single and parallel panel are 2,099.93 ml/h and 4,199.86 ml/h that are both at 10am. The highest hydrogen volume can be produced in Tembalang for single and parallel panel are 2,693.39 ml/h at 1pm and 5,751.98 ml/h at 11am. The altitude level of location greatly influences the solar intensity for hydrogen production. Parallel panel can produce hydrogen approximately 2 times single panel.
Energy and Exergy Analysis of Steam Power Plant 3rd Unit PT PLN (PERSERO) Centre Unit Generation Tanjung Jati B Use BFP-T Modification Cycle
Authors: U MSK. Tony Suryo , Yohana Eflita , Priyanto Syarif Dwi , M. Ignatius Apryando , Tauviqirrahman
Published: October 2019

Steam power plant Generation of Tanjung Jati B 3rd unit has a capacity of 660 MW. The power plant operational in 2011, because of the long operation process, there will be a decrease in performance. The plant needs to be researched to analyze the performance and losses that occurs in the power plant. Because this also affects the environment if the efficiency of the power plant is high, it can reduce the use of coal. Because coal becomes air pollution and environmental pollution, which can cause acid rain, water pollution, and global warming. This research is used to analyze energy and exergy on the components of a steam power plant. From the results of this research, the largest of destruction exergy boiler is 881.08 MW and the exergetic efficiency is 48.66%. While the rate of the smallest destruction exergy in LPH 3 is 0.6 MW and the exergetic efficiency is 94.45%. The contribution of the largest Losses energy in the boiler is 231 MW and energetic efficiency is 87.05%. While the contribution of the smallest energy Losses in HPH 6 is 0.74 MW and energetic efficiency is 99.23%.
The Effect of Binding Types on the Biomass Briquette Calorific Value from Cow Manure as a Solid Energy Source
Authors: Anatasya Amanda , Umiati Ngurah Ayu Ketut , Subagio Agus
Published: October 2019

Biomass briquettes have been made as an alternative energy source from cow dung waste. Molasses and starch were used as binder material with a carbonization temperature of 400 °C for 2 hours. The work aims to produce biomass briquettes with the best heating value based on analysis of composition effect and type of binder on the briquette with calorific value. The heat test results showed that briquettes with 10% sugar cane binding content produced the highest calorific value of 3907.5 calories/gram. Sugar cane drops become the better binder than starch in biomass briquettes production.
Delineation of Geothermal Manifestation in Sangubanyu Area Based on Microtremor HVSR Method
Authors: Sudjono Dwi Sudarmawan , Harmoko Udi , Yuliyanto Gatot
Published: October 2019

The aims of this study is to describe the distribution of P wave velocity and S wave velocity value and Vp/Vs ratio based on microtremor HVSR method and its relationship with the appearance of hot spring at Sangubanyu Village. Geothermal manifestations in the Sangubanyu area are located in Bawang sub-district, Batang regency, and Plantungan sub-district, Kendal regency, Central Java province. HVSR method is used to process microtremor data which produces the dominant frequency value and amplification factor then do inversion on the H/V curve to get the value of the Vp and Vs. The results of the microtremor HVSR processing obtained the distribution of the dominant frequency values in the study area between 0.62 to 0.73 Hz and amplification factor values 1.09 to 1.39, the inversion results on the H/V curve obtained the distribution of Vp values between 131.76 m/s to 2181.19 m/s, Vs values between 76.61 to 1129.42 m/s, Vp/Vs ratio 1.64 – 3.35. Based on the results of the analysis and wave velocity interpretation, the subsurface structure of manifestation area of Sangubanyu is composed of tuffaceous sandstone and volcanic breccia, the normal faults with southern blocks relatively downthrown, that cause the appearance of hot springs.
Potential Utilization of Dairy Cattle Waste into Biogas (Jetak Village, Semarang City, Central Java)
Authors: Putri Andhina , Purwanto P , Purnaweni Hartuti
Published: October 2019

This study aims to identify the potential of dairy cattle waste to become biogas in Jetak Village as a solution in dealing with environmental problems. In this study using primary data obtained from 72 respondents through in-depth interviews, observation and documentation. The method used is descriptive qualitative with a qualitative descriptive approach and an analysis of conversion of dairy cattle dung into methane gas production. The results showed that the potential for renewable energy from dairy cattle waste to biogas was 4,424 kg / day or equivalent to 35.35 m3 / kg with a methane content of 24.75 m3. The utilization of dairy cattle waste in Jetak Village into compost / organic fertilizer has not been done by the community due to a lack of community knowledge and the motivation of people who are still low in processing livestock waste into other products.
Reducing Residual Moveout for Long Offset Data in VTI Media Using Padé Approximation
Authors: Pratiwi Indah Nur , Rosid Mohammad Syamsu , Purba Humbang
Published: October 2019

Modification of the hyperbolic travel time equation into non-hyperbolic travel time equation is important to increase the reduction residual moveout for long offset data. Some researchers have modified hyperbolic travel time equation into a non-hyperbolic travel time equation to obtain a more accurate value NMO velocity and parameter an-ellipticity or etha on the large offset to depth ratio (ODR) so that the residual moveout value is smaller mainly in large offset to depth ratio. The aims of research is to increase the reduction value of error residue at long offset data using Padé approximation then compare with several approximations. The method used in this study is to conduct forward modeling of the subsurface coating structure. The results of the three-dimensional analysis show that the Padé approximation has the best accuracy compared to the other travel time equations for ODR value up to 4 with an-ellipticity parameter is varying from 0 to 0.5. Testing of synthetic data for single layer on vertical transverse isotropy (VTI) medium obtained the maximum residual error value produced by the Padé approximation is 0.25% in ODR=4. Therefore, Padé approximation is better than other methods for reducing residual moveout.
Porosity Prediction Using Neural Network Based on Seismic Inversion and Seismic Attributes
Authors: Sinaga Taufik Mawardi , Rosid M. Syamsu , Haidar M. Wahdanadi
Published: October 2019

It has done a study of porosity prediction by using neural network. The study uses 2D seismic data post-stack time migration (PSTM) and 2 well data at field “T”. The objective is determining distribution of porosity. Porosity in carbonate reservoir is actually heterogeneous, complex and random. To face the complexity the neural network method has been implemented. The neural network algorithm uses probabilistic neural network based on best seismic attributes. It has been selected by using multi-attribute method with has high correlation. The best attributes which have been selected are amplitude envelope, average frequency, amplitude weighted phase, integrated absolute amplitude, acoustic impedance, and dominant frequency. The attribute is used as input to probabilistic neural network method process. The result porosity prediction based on probabilistic neural network use non-linear equation obtained high correlation coefficient 0.86 and approach actual log. The result has a better correlation than using multi-attribute method with correlation 0.58. The value of distribution porosity is 0.05–0.3 and it indicates the heterogeneous porosity distribution generally from the bottom to up are decreasing value.
Developing Aedes Albopictus as a Vector With Sterile Insect Technique (SIT) to Control Dengue in Semarang City
Authors: Martini Martini , Maulida Dirga , Rahayu Ali , Kusariana Nissa , Hestiningsih Retno , Yuliawati Sri
Published: October 2019

Dengue is still being a health problem in Semarang City. Aedes albopictus is a secondary vector but they could be a main vector in an urban area. Sterile Insect technique (SIT) is an alternative tool to control dengue that is more safety than using pesticide. The objective of this study was to develop Aedes albopictus with SIT method to control dengue in Semarang City. Male pupae were irradiated at the doses of 0 (control), 60, 70, and 80 Gy, using 3 replications. The parameters that were measured to determine the quality of males that have been sterilized are number of eggs, sterility level and mating competitiveness. The level of sterility was determined by the percentage of unhatched eggs. Mating competitiveness was determined by Fried index with a ratio of 30 : 10 : 10 (radiated males : fertile males : virgin females). There was no significant difference (p ≤ 0.05) at sterility level to the irradiated males. The results indicated that decreasing irradiated doses conducted increasing in mating competitiveness. However, further trial in field conditions should be undertaken to estimate the release ratio of irradiated males to produce an effect on wild populations.
Epidemiology of primary brain tumors in dr. Kariadi Hospital Semarang in 2015-2018
Authors: Ardhini Rahmi , Tugasworo Dodik
Published: October 2019

Background: Primary brain tumors are neoplasm originated from brain parenchyma and its surrounding structures. Although primary brain tumors is only 1,4% of all cancers, they causes significant morbidity and mortality. Objective: To study the epidemiology of primary brain tumors in Dr. Kariadi General Hospital Semarang between 2015 and 2018. Methods: a descriptive epidemiological study taken from medical records of hospitalized patients with primary brain tumors during 2015 - 2018. The data includes demographic characteristics and clinical characteristics. Results: There were 175 suspected cases of primary brain tumor, 38.3% occurred in males and 61.7% in females. The peak incidence is in 41-50 years (34.3%). 61.1% live in coastal areas. The frequent symptoms is headache (44.9%), with the most common location was in the frontal lobe (17.7%). The most common type was meningioma (24.5%). Meningioma were more common in females (90.7%), whereas glioma were more common in males (60%). 46.3% patients experienced clinical improvement at the time of discharge. Conclusions: The incidence of primary brain tumors are more common in females, the peak incidence are age 41-50 years, and most of them live in coastal areas.