bluuebunny/crossref_metadata_2025 huggingface dataset:
Technical and Economic Assessment of Micro-Cogeneration Systems for Residential Applications
Authors: Atănăsoae Pavel
Published: February 2020

The benefits of cogeneration or combined heat and power (CHP) of large power systems are well proven. The technical and economic viability of micro-cogeneration systems is discussed in this paper as it compares to the separate production of electricity and heat. A case study for an individual household is also provided to better understand the benefits of small power cogeneration from renewable energy sources. Two micro-CHP systems are considered for analysis: the first with Stirling engine, and the second with Rankine Organic Cycle. The reference scenario is an individual household with a gas boiler and electricity from the public network. The results show that it is possible that the payback period for the micro-CHP from renewable energy sources will fall below the accepted average value (<15 years) without the support schemes. The economic and environmental benefits of small power cogeneration systems compared to the traditional scenario are highlighted.
Operational Performance and Degradation Influenced Life Cycle Environmental–Economic Metrics of mc-Si, a-Si and HIT Photovoltaic Arrays in Hot Semi-arid Climates
Authors: Rajput Pramod , Malvoni Maria , Manoj Kumar Nallapaneni , Sastry O. S. , Jayakumar Arunkumar
Published: February 2020

Life cycle metrics evolution specific to the climate zone of photovoltaic (PV) operation would give detailed insights on the environmental and economic performance. At present, vast literature is available on the PV life cycle metrics where only the output energies ignoring the degradation rate (DR) influence. In this study, the environ-economic analysis of three PV technologies, namely, multi-crystalline silicon (mc-Si), amorphous silicon (a-Si) and hetero-junction with an intrinsic thin layer (HIT) have been carried out in identical environmental conditions. The energy performance parameters and the DR rate of three PV technologies are evaluated based on the monitored real time data from the installation site in hot semi-arid climates. The assessment demonstrates that the HIT PV module technology exhibits more suitable results compared to mc-Si and a-Si PV systems in hot semi-arid climatic conditions of India. Moreover, energy metrices which includes energy payback time (EPBT), energy production factor (EPF) and life cycle conversion efficiency (LCCE) of the HIT technologies are found to be 1.0, 24.93 and 0.15 years, respectively. HIT PV system has higher potential to mitigate the CO2 and carbon credit earned compared to mc-Si and a-Si PV system under hot semi-arid climate. However, the annualized uniform cost (UAC) for mc-Si (3.60 Rs/kWh) and a-Si (3.40 Rs/kWh) are more admissible in relation to the HIT (6.63 Rs/kWh) PV module type. We conclude that the approach of considering DR influenced life cycle metrics over the traditional approach can support to identify suitable locations for specific PV technology.
Sustainability Evaluation of Municipal Solid Waste Management System for Hanoi (Vietnam)—Why to Choose the ‘Waste-to-Energy’ Concept
Authors: Hoang Nguyen Huu , Fogarassy Csaba
Published: February 2020

According to decision no. 491/QD-TTg signed in 2018 by the Vietnamese Prime Minister approving adjustments to the national strategy for the general management of solid waste until 2025 with a vision toward 2050, Vietnam has committed itself to move toward collecting, transporting, and treating 100% of non-household waste by 2025 and 85% of waste discharged by households by 2025. This paper aims to determine which is the best sustainable solid waste management system out of those that have been formulated by World Bank experts for Hanoi until 2030 for implementing the national strategy. The paper compares four distinct solid waste management enhancement alternatives, namely, “Improving the current system for waste collection and transportation”; “Reducing, reusing, and recycling waste at source”; “Mechanical–biological treatment (MBT) plants for classifying, composting, and refuse-derived fuel (RDF) for the cement industry”; and “MBT plants for classifying, composting, and RDF for waste-to-energy/incineration plants”. The comparison was made using an analytic hierarchy process. As a result, the research indicated that “MBT plants for classifying, composting, and RDF for waste-to-energy/incineration plants” has the highest ranking in terms of a sustainable solution for the municipal solid waste management system. Therefore, it should be applied for managing the current situation in Hanoi. At the same time, the sustainable development of the system must seek to decrease the waste-to-energy ratio continuously and significantly through the planned reuse of materials that can be recycled to industry. According to the literature, in major cities in Asia and Africa, development programs are moving toward waste-to-energy solutions. The EU’s circular innovation programs and action plan may be in the opposite direction to this trend.
Status and Challenges of Qinghai–Tibet Plateau’s Grasslands: An Analysis of Causes, Mitigation Measures, and Way Forward
Authors: Fayiah Moses , Dong ShiKui , Khomera Sphiwe Wezzie , Ur Rehman Syed Aziz , Yang Mingyue , Xiao Jiannan
Published: February 2020

Grassland ecosystems on the Qinghai–Tibet Plateau (QTP) provide numerous ecosystem services and functions to both local communities and the populations living downstream through the provision of water, habitat, food, herbal medicines, and shelter. This review examined the current ecological status, degradation causes, and impacts of the various grassland degradation mitigation measures employed and their effects on grassland health and growth in the QTP. Our findings revealed that QTP grasslands are continually being degraded as a result of complex biotic and abiotic drivers and processes. The biotic and abiotic actions have resulted in soil erosion, plant biomass loss, soil organic carbon loss, a reduction in grazing and carrying capacity, the emergence of pioneer plant species, loss of soil nutrients, and an increase in soil pH. A combination of factors such as overgrazing, land-use changes, invasive species encroachment, mining activities, rodent burrowing activities, road and dam constructions, tourism, migration, urbanization, and climate change have caused the degradation of grasslands on the QTP. A conceptual framework on the way forward in tackling grassland degradation on the QTP is presented together with other appropriate measures needed to amicably combat grassland degradation on the QTP. It is recommended that a comprehensive and detailed survey be carried out across the QTP to determine the percentage of degraded grasslands and hence, support a sound policy intervention.
Green Supply Chain Performance Prediction Using a Bayesian Belief Network
Authors: Rabbi Md. , Ali Syed Mithun , Kabir Golam , Mahtab Zuhayer , Paul Sanjoy Kumar
Published: February 2020

Green supply chain management (GSCM) has emerged as an important issue to lessen the impact of supply chain activities on the natural environment, as well as reduce waste and achieve sustainable growth of a company. To understand the effectiveness of GSCM, performance measurement of GSCM is a must. Monitoring and predicting green supply chain performance can result in improved decision-making capability for managers and decision-makers to achieve sustainable competitive advantage. This paper identifies and analyzes various green supply chain performance measures and indicators. A probabilistic model is proposed based on a Bayesian belief network (BBN) for predicting green supply chain performance. Eleven green supply chain performance indicators and two green supply chain performance measures are identified through an extensive literature review. Using a real-world case study of a manufacturing industry, the methodology of this model is illustrated. Sensitivity analysis is also performed to examine the relative sensitivity of green supply chain performance to each of the performance indicators. The outcome of this research is expected to help managers and practitioners of GSCM improve their decision-making capability, which ultimately results in improved overall organizational performance.
The Contribution of Ecosystem Services in Developing Effective and Sustainable Management Practices in Marine Protected Areas. The Case Study of “Isola dell’Asinara”
Authors: Floris Maddalena , Gazale Vittorio , Isola Federica , Leccis Francesca , Pinna Salvatore , Pira Cheti
Published: February 2020

Ecosystem Services (ESs) are assuming a constantly increasing importance in management practices due to their key role in ensuring a sustainable future to fauna and flora on Earth. In addition, ES degradation and quality loss jeopardize current human activities. For this reason, it is essential to develop methodologies and practices able to efficiently assess environmental and socio-economic impacts in terms of ES deterioration, especially within protected areas. Norms and regulations have to be able to identify habitat and species categories to be preserved, and to determine the cost of their destruction and decline, according to a holistic vision, which includes social and economic impacts, besides the environmental ones. The paper illustrates the case study of the “Isola dell’Asinara” Marine Protected Area (MPA) in Sardinia, where an experimental methodology was developed with the aim to draw new regulations that integrate conservation measures of Natura 2000 sites included in its territory, provisions determined by the integrated coastal zone management (ICZM) protocol and the Standardized Actions for Effective Management of MPAs (ISEA) project. Subsequently, in order to assess the status of ESs and impacts on ESs located within the MPA territory, an ecosystem-based approach was implemented and applied to the actions defined for the new regulation proposal. Results show that regulations are in this way valuably enriched by environmental aspects of the MPA that would otherwise be overlooked.
Integrating Flipped Foreign Language Learning through Mobile Devices: Technology Acceptance and Flipped Learning Experience
Authors: Andujar Alberto , Salaberri-Ramiro María Sagrario , Martínez María Soledad Crúz
Published: February 2020

Blended learning models have been extensively used in foreign language environments to extend in-class time as well as reinforce in-class explanations. Among these models, the increasing popularity of flipped learning has given rise to transformative pedagogies that address many of the problems experienced in traditional lecture-based classes. In this context, the use of stationary devices to develop flipped learning processes has been a common practice over the last years. However, the ubiquitous characteristics of mobile devices have rarely been investigated to carry out these types of learning methodologies. With this aim, the present investigation explores students’ perceptions and technological acceptance of the implementation of a flipped learning model in two English as a Foreign Language classes. A quantitative analysis was carried out in order to evaluate the information collected in the two groups. Findings yielded a positive perception of the flipped learning experience, particularly in terms of overall satisfaction. In addition, with regard to the use of mobile devices, participants reported ease of use and highlighted the importance of an appropriate design of the video contents for a successful flipped learning experience through mobile devices. Further research into this topic is sought as students also faced difficulties during the project.
Sustainability-Related Implications of Competitive Advantages in Agricultural Value Chains: Evidence from Central Asia—China Trade and Investment
Authors: Erokhin Vasilii , Diao Li , Du Peiran
Published: February 2020

More stable value chains in agriculture allow countries to take the best advantage of their factor endowments and thus achieve the UN Sustainable Development Goal on ending hunger. It is, however, difficult to interpret such advantages properly due to the multivariate effects of natural, technological, and economic variables on agricultural output and food supply. The authors attempt to tackle this challenge by developing the approach to the identification of competitive advantages and matching them with the production capabilities of agricultural sectors in Central Asia. The application of Revealed Comparative Advantage (RCA), Relative Trade Advantage (RTA), Lafay Competitive Advantage (LI), and Domestic Resource Costs (DRC) indexes to the array of 37 products results in the revealing of comparative, trade, competitive, and production advantages of five Central Asian economies for labor-intensive horticultural products and grains. Capital and technology-intensive sectors of animal husbandry and food processing are recognized as low competitive. Taking Central Asia–China collaboration as a model, the authors elaborate policy measures aimed at support, promotion, or establishment of competitive advantages. The application of the measures facilitates the concentration of the resources toward competitive and conditionally competitive products, allows to protect fragile advantages in marginally competitive sectors, and contributes to the overall improvement of stakeholders’ performance across agricultural value chains in the region.
Triple-Staple Technique Effectively Reduces Operating Time for Rectal Anastomosis
Authors: De Robles Marie Shella Baduel , Young Christopher John
Published: February 2020

Purpose: Stapled anastomotic techniques to the distal rectum have gained widespread acceptance due to their procedural advantages. Various modifications in the stapling techniques have evolved since their inception. The triple-staple technique utilizing stapled closure of both the proximal colon and distal rectal stump provides a rapid and secure colorectal anastomosis. The aims of this study were to determine the safety and efficacy of the triple-staple technique and to compare the clinical outcomes with a historical control group for which the conventional double-staple technique had been performed.Methods: One hundred consecutive patients operated on by a single surgeon were included in the study; 50 patients who underwent a double-staple (DSA) procedure and 50 patients undergoing triple-staple anastomosis (TSA).Results: The most common indication for surgery in both groups was rectal cancer followed by diverticular disease and distal sigmoid cancer. There was no significant difference in number of patients requiring loop ileostomy formation in the groups (TSA, 56.0% vs. DSA, 68.0%; P = 0.621). The mean operating time for the TSA group was significantly shorter compared to that of the DSA group (TSA, 242.8 minutes vs. DSA, 306.1 minutes; P = 0.001). There was no significant difference in complication rate (TSA, 40% vs. DSA, 50%; P = 0.315) or length of hospital stay between the two groups (TSA, 11.3 days vs. DSA, 13.0 days; P = 0.246). Postoperative complications included anastomotic leak, prolonged ileus, bleeding, wound infection, and pelvic collection.Conclusion: The triple-staple technique is a safe alternative to double-staple anastomosis after anterior resection and effectively shortens operating time.
A unified procedure for the vibration analysis of elastically restrained Timoshenko beams with variable cross sections
Authors: Wang Gang , Li Wen L. , Li Wanyou , Feng Zhihua , Ni Junfang
Published: February 2020

A generalized analytical method is developed for the vibration analysis of Timoshenko beams with elastically restrained ends. For a beam with any variable cross section along the lengthwise direction, the finite element method is the only unified approach to handle those kinds of problems,
since the analytical solutions could not be obtained by the governing equations when the cross section area and the second moment of area changing variably lengthwise. In this article, a unified approach is proposed to study the Timoshenko beam with any variable cross sections. The cross section
area and second moment of area of the beam are both expanded into cosine series, which are mathematically capable of representing any variable cross section. The translational displacement and rotation of cross section are expressed in the Fourier series by adding some admissible functions
which are used to handle the elastic boundary conditions with more accuracy and high convergence rate. By using Hamilton's principle, the eigenvalues and the coefficients of the Fourier series are both obtained. Some examples are presented to illustrate the excellent accuracy of this method.
Analytical solutions of the vibration of the beam are achieved for different combinations of boundary conditions including classical and elastically restrained ones. The derived results can be used as benchmark solutions for testing approximate or numerical methods used for the vibration analysis
of Timoshenko beams with any variable cross section.
Cannabidiol prescription in clinical practice: an audit on the first 400 patients in New Zealand
Authors: Gulbransen Graham , Xu William , Arroll Bruce
Published: February 2020

Background

Cannabidiol (CBD) is the non-euphoriant component of cannabis. In 2017, the New Zealand Misuse of Drugs Regulations (1977) were amended, allowing doctors to prescribe CBD. Therapeutic benefit and tolerability of CBD remains unclear.

Aim

To review the changes in self-reported quality of life measurements, drug tolerability, and dose-dependent relationships in patients prescribed CBD oil for various conditions at a single institution.

Design & setting

An audit including all patients (n = 400) presenting to Cannabis Care, New Zealand, between 7 December 2017 and 7 December 2018 seeking CBD prescriptions

Method

Indications for CBD use were recorded at baseline. Outcomes included EuroQol quality of life measures at baseline and after 3 weeks of use, patient-reported satisfaction, incidence of side effects, and patient-titrated dosage levels of CBD.

Results

Four hundred patients were assessed for CBD and 397 received a prescription. Follow-up was completed on 253 patients (63.3%). Patients reported a mean increase of 13.6 points (P<0.001) on the EQ-VAS scale describing overall quality of health. Patients with non-cancer pain and mental-health symptoms achieved improvements to patient-reported pain and depression and anxiety symptoms (P<0.05). There were no major adverse effects. Positive side effects included improved sleep and appetite. No associations were found between CBD dose and patient-reported benefit.

Conclusion

There may be analgesic and anxiolytic benefits of CBD in patients with non-cancer chronic pain and mental health conditions such as anxiety. CBD is well tolerated, making it safe to trial for non-cancer chronic pain, mental health, neurological, and cancer symptoms.
Faktor-faktor yang Berhubungan dengan Pemberian Imunisasi Campak pada Balita
Authors: Huvaid Sevilla Ukhtil , Yulianita Yulianita , Mairoza Nola
Published: February 2020

Measles immunization is complete basic immunization that must be given to children from 9 to 59 months. Measles immunization coverage in the Limau-Limau Posyandu at the Asam Kumbang Health Center has decreased from 69.2% to 41.9%. The purpose of this study was to determine the relationship between knowledge, attitudes, and roles of cadres and measles immunization in infants. This study uses a cross sectional approach. The population in this study were all mothers with children (9-59 months). The sample is all toddlers, while the respondents are all mothers who have toddlers with a total sampling technique. Analysis was performed using Chi Square test. The univariate results in this study indicate that more respondents did not bring their children for measles immunization (59.5%) more than half of respondents had low knowledge (64.9%), more than half of respondents were negative (62.2%), and more of half of respondents said the cadre's role was not good (62.2%) for measles immunization in infants. Bivariate results showed that there was a significant relationship between knowledge, attitudes and roles of cadres and measles immunization for infants (p = 0,000). For this reason, it is necessary to increase the frequency of counseling and training of cadres in order to change the role of cadres from less good to better, in addition respondents respondents must increase active participation in extension activities in order to increase knowledge.
Temperature-Dependent Mechanical Properties of Graphene/Cu Nanocomposites with In-Plane Negative Poisson’s Ratios
Authors: Fan Yin , Xiang Yang , Shen Hui-Shen
Published: February 2020

Negative Poisson’s ratio (NPR), also known as “auxetic”, is a highly desired property in a wide range of future industry applications. By employing molecular dynamics (MD) simulation, metal matrix nanocomposites reinforced by graphene sheets are studied in this paper. In the simulation, single crystal copper with crystal orientation

1
 
1
 
0

is selected as the matrix and an embedded-atom method (EAM) potential is used to describe the interaction of copper atoms. An aligned graphene sheet is selected as reinforcement, and a hybrid potential, namely, the Erhart-Albe potential, is used for the interaction between a pair of carbon atoms. The interaction between the carbon atom and copper atom is approximated by the Lennard-Jones (L-J) potential. The simulation results showed that both graphene and copper matrix possess in-plane NPRs. The temperature-dependent mechanical properties of graphene/copper nanocomposites with in-plane NPRs are obtained for the first time.
ARTIFICIAL INTELLIGENCE: COMPREHENSIVE ANALYSIS OF THE STATE AND DEVELOPMENT PROSPECTS
Authors: Durnev R.A. , Kryukov K.Yu. , Titov A.E.
Published: February 2020

In this Article the state of development of weak and strong artificial intelligence is considered. It is determined that the methods of weak artificial intelligence are part of automation and are used only in algorithmic space. The modern progress of their application is mainly connected with the growth of microelectronics capabilities. Strong artificial intelligence should solve creative problems in a non-algorithmic space and its development is carried out in the following directions: in the form of programs on a computer, by improving a person and creating bio-cybernetic systems. The main problems and limitations, the prospects for implementation and the risks of these areas.
HYBRID WAR: PRACTICE, SECURITY ISSUES
Authors: Gostev A.N.
Published: February 2020

The article reveals the essence, the content of a hybrid war; its forces and means, traditional and innovative subsystems are shown; reveals and justifies the threats, the damaging factors, the inevitability and traditionalism of such wars; determines its differences from the classical; The special danger of organizational and other innovative weapons is being updated.
THE SITUATION OF PRESERVATION AND PROMOTION OF THE CULTURAL VALUES OF KHMER FOLK MUSIC IN THE SOUTH OF VIETNAM
Authors: Pham Khanh Tiet , Nguyen Hai Dang , Pham Thy Thi To
Published: February 2020

This study evaluated the current condition of the preservation and promotion of cultural values of Khmer folk music. The study used sociological investigation methods, in-depth interviews, and ethnographic fieldwork methods. The results showed that the preservation and promotion of the cultural values of Khmer folk musicin the south of Vietnam were mainly done spontaneously, via oral transmission between artisans and artists. Even though research into Khmer folk music, introduction of outsiders to Khmer folk music, and training have begun to be collected and researched, it is still very limited.
PRELIMINARY RESULTS ON ARTIFICIAL PROPAGATION OF ASIAN PAINTED FROG (Kaloula pulchra) USING LH-RHa
Authors: Nguyen Trang Cong
Published: February 2020

This study on artificial propagation of the Asian painted frog (Kaloula pulchra) was conducted to evaluate the reproductive efficiency of LH-RHa stimulation. The experiment samples were randomized into 4 different dosage groups with LH-RHa, including 60, 80, 100 and 120µg/kg of body weight, and each trial was repeated four times. The results showed that the appropriate dose for Asian painted frog reproduction was the 60mg/kg of LH-RHa (treatment 1). Some reproductive parameters were documented on treatment 1 including: latencytime (5.2 ± 0.65 hours at 29.2 ± 0.170C), spawning rate (91.8 ± 8.25%), fecundity (47.866 ± 2.377 eggs per kg of female), fertilization rate (96.8 ± 0.63%), hatching time (16.2 ± 1.23 hours at 29.2 ± 0.17oC), hatch ing rate (96.6 ± 1.03%), and metamorphosis duration (14.5 ± 0.2 days at 30.5 ± 0.31oC). The average survival rate of the froglets in the treatment 1 group during 30 days of nursing was at 26.7 ± 1.33%. Moreover, this is one of the first preliminary studies about propagation of the Asian painted frog (Kaloula pulchra) in Vietnam.
The use of additive technologies in reconstructive maxillofacial surgery
Authors: Tereshchuk Sergey , Ivanov Sergey , Korabelnikov Daniil , Sukharev Vladimir
Published: February 2020

Introduction. Modern technologies make it possible not only to plan reconstructive surgery virtually, but also to manufacture templates for resection and osteotomy, customized titanium plates based on the results of planning.

Objective. To analyze the results of application of additive technologies for planning and performing reconstructive operations in the Maxillofacial Surgery and Stomatology Center at Burdenko Main Military Clinical Hospital

Patients and Methods. 144 operations to eliminate different locations bone defects were performed in the Maxillofacial Surgery and Stomatology Center in 2007 - 2017. 136 patients (93%) had de-fects of the bones of the facial skeleton and the skull calvarium. In other cases, there were defects of the clavicle (2 patients), defects of the femur (2 patients), defects of the humerus (2 patients), a defect of the radius (1 patient), a defect of the navicular bone (1 patient).

Results. Flaps were used to close the defects in 87% of cases (125 patients), and alloplastic implants were utilized in 13% of cases (19 patients). Additive technologies were used in 85% (n = 123) cases for planning the operation to eliminate defects, as well as for manufacturing surgical models and templates. Clinical cases are considered as examples of the use of the additive technologies for planning and performing reconstructive operations to close bone defects of different locations.

The incidence of postoperative complications in the group of patients with facial skeleton and crani-al vault bones defects who underwent surgical interventions using templates was 26%, including minor complications - 17.5%, large - 8.5%. Among minor complications, hematomas (5%) and sup-puration (5%) of the recipient wound prevailed, less often similar complications were hematomas (4%) and suppuration (3%) of the donor wound. Large complications were represented by cases of complete (4%) or partial (5%) transplant necrosis.

During surgical interventions without a template, it took significantly longer than the average time of grafting and graft formation (212 ± 18.7 min) than during operations with a template, including with a guide for drilling (136 ± 12.6 min, p <0.001) and without a guide for drilling (160 ± 16.3 min, p <0.001).

Conclusion. The use of surgical models and templates during reconstructive operations shortens the time of the operation and reduces the number of postoperative complications.
Motif Melakukan Electronic Word of Mouth oleh Konsumen
Authors: Ahmad Rosmalia , Febrina Diah
Published: February 2020

Electronic word of mouth communication (eWOM) can reach more consumers through new media such as social media, blog, website, and so forth. The purpose of this study is to determine the level of motivation to perform electronic word of mouth (eWOM) by consumers. This research used electronic word of mouth (eWOM) and the motives for giving electronic word of mouth (eWOM) as a concept. The results show that altruism, social benefits, and venting feeling are considered as the motivation for giving electronic word of mouth (eWOM) by consumers. While self-improvement is a dimension that does not motivate consumers to do electronic word of mouth (eWOM).
Determination of Tank Model Parameters with Four Series Structure in Rokan Watershed
Authors: Manyuk Fauzi  , Handayani Yohanna Lilis , Destiany Annisa
Published: February 2020

Information about low flow and water availability is one of the important factors in the management of water resources. The Rokan River Basin as one of the water resources in Riau Province is very important to know the condition of its water availability. One conceptual hydrological model for low flow analysis is the Tank Model developed by Sugawara. Data input needed in this research is daily rainfall data at Pasar Tangun Station, climatology data at Rambah Utama station and discharge data at AWLR Pasir Pengaraian. Model parameter search in the calibration stage is by trial and error. Using a 90% confidence interval a range of parameter values for the tank model is obtained, which is special for production store are surface flow 150.81 mm ≤ H1 ≤ 204.75 mm, intermediate flow 156.74 mm ≤ H2 ≤ 194.37 mm, sub base flow 141.24 mm ≤ H3 ≤ 176, 54 mm and base flow 139.43 mm ≤ H4 ≤ 176.12 mm.
ANALISIS KEBUTUHAN DAN KETERSEDIAAN AIR KABUPATEN MANOKWARI DENGAN MODEL MOCK
Authors: Jiwa Osly Prima , Dwiyandi Fulki , Ihsani Irfan , Ririhena Rhonny Einsten
Published: February 2020

Air merupakan salah satu sumber kehidupan, karena air adalah zat atau unsur esensial bagi kehidupan manusia dan mahluk hidup lainnya. Dapat dikatakan tidak ada kehidupan di muka bumi ini yang dapat berlangsung tanpa air. Tanpa ketersediaan air yang mencukupi kebutuhan manusia dan makhluk hidup lainnya dapat mengakibatkan terjadinya konflik. Maka dalam penelitian ini bertujuan untuk menganalisis seberapa besar potensi ketersediaan air berdasarkan debit andalan dan seberapa besar  kebutuhan air di Kabupaten Manokwari. Ketersediaan air di Kabupaten Manokwari ini di harapkan dapat memenuhi kebutuhan wilayah tersebut secara kuantitatif. Analisis yang digunakan dalam  penelitian ini menggunakan metode FJ. Mock. Metode ini dilakukan dengan mengaplikasikan pendekatan model hujan aliran (rainfall-run off model) dengan menggunakan data curah hujan, evapotranspirasi potensial, dan karakteristik hidrologi untuk memprediksi besar debit sungai dengan interval waktu bulanan. Hasil penelitian ini menunjukan debit andalan tahunan yang diperoleh dengan kemungkinan terpenuhi 50% adalah sebesar  Q = 178.352 (m3/det)  dan debit andalan 80% sebesar Q = 152.405 (m3/det). Potensi ketersediaan air pada kabupaten Manokwari pada tahun 2018 adalah sebesar 398.570.549 m3 dan total kebutuhan air untuk penggunaan sebanyak 66.629.639 m3, sehingga kabupaten Manokwari memiliki surplus air baku yang dapat lebih dimanfaatkan.
Rugalmasan elhelyezhető tengelyű sűrített levegős motor tervezése
Authors: Marada Imre , János Bihari
Published: February 2020

A cikk egy pneumobil motorjának megtervezését mutatja be. A motor egy nemzetközi hallgatói versenyre készített pneumobil nevű jármű fontos részét képezi. A motor segítségével lehet a sűrített levegő energiáját használó pneumatikus munkahenger lineáris alternáló mozgását forgómozgássá alakítani, amelyet aztán a hajtáslánccal tovább vezetve lehetséges a hajtott kerék meghajtása. Ez a cikk a motor megtervezését mutatja be, a munkahenger mozgatása, illetve a hajtáslánc megtervezése nem képezi részét. A megtervezésben segített az előző évi motor tervezésekor szerzett tapasztalatok. A tervezés során az egyik legnagyobb akadályt a kihajtó tengely elhelyezése jelentette.
Különböző kommutátor ülék-kialakítások egységesítésének folyamata
Authors: Pleszkó István , Gergely Krisztián , Varga Gyula
Published: February 2020

A Miskolci Egyetem Gyártástudományi Intézete és a miskolci Robert Bosch Power Tool Kft. mo-torgyártás minőségbiztosításért felelős csoportjának közös munkája részeként megvizsgáltuk a kéziszerszámok motorjaiban alkalmazott kommutátor ülékeket, a vállalat részéről felmerülő problémára a cégen belül alkalmazott módszerek segítségével kerestük a megoldást. A tanul-mányban bemutatásra kerülnek a korszerű minőségbiztosítási módszerek alkalmazásai, úgymint a Pareto-elemzés, ok-okozati elemzés, 5Why módszer, továbbá az ezen módszerek segítségével feltárt gyökérok tesztjei.
Felső végtagi bénultak számára használható mechanikus kormányszerkezet koncepcionális tervezése
Authors: Kántor Kristóf , Rézsó Ferencné , Kamondi László
Published: February 2020

Nap mint nap találkozhatunk olyan személyekkel, akik tolószékesek, kis növésűek, vagy más olyan mozgás problémával rendelkeznek, melyek első gondolatra nem férnek össze az önálló járművezetéssel, mégis jogosítvánnyal és autóval rendelkeznek. Magyarországon sajnos a felső végtagi bénultak nincsenek ilyen szerencsés helyzetben. A TDK dolgozatom feladata egy számukra használható eszköz koncepcionális tervezése. Célom egy olyan megoldás létrehozása, amely univerzális, könnyen beépíthető, valamint ki- és beszerelhető, így a családoknak nem szükséges egy második autó vásárlása.
Családi ház esővízgyűjtő rendszerének méretezése
Authors: Matusz-Kalász Dávid
Published: February 2020

A csapadékhasznosítás napjainkban csak korlátozott körülmények között oldható meg, mindemellett nem megfelelően kezelt tématerület. Minden bizonnyal szép számmal találhatóak ma Magyarországon olyan házak és kertek, ahol a csapadékot ereszek alá helyezett dézsákban, hordókban gyűjtik, majd locsolásra és kocsi mosásra felhasználják, esetleg állatok itatására szolgál. Ez nem jelent elegendően jó kihasználtságot, ennél sokkal jobban is fel lehetne használni a lehulló csapadékot. Megfelelően méretezett és kiépített, földalatti tartállyal akár a tetőre hulló összes esőcseppet be lehet gyűjteni. Annak megfelelő kezelése után a házba bevezetni, fürdésre, mosásra, de további kezelés után akár még főzésre és ivővízként is felhasználni. Ezen lehetőségének vizsgálata és megvalósítása a fő témakör.
Relation of Organic Materials to the Presence of Soil Fauna in the Different Age of Post-Mine Land Rehabilitation
Authors: Tarmeji Achmad
Published: February 2020

The research was conducted the status of soil organic matter, soil fauna diversity index types and relationship the presence of organic matter to the soil fauna at different post – mining land rehabilitation age. Research methods throught the stages of direct observation and description in the field as well as analysis in the laboratory. Observasion data was determined based on post-mining land rehabilitation at different age: 1,5 and 10 years. While the data were analyzed in the laboratory was the sample data of land that serves as the data linking organic matter in the presence of soil fauna at different post-mining land rehabilitation age. The result showed that the number of soil fauna on post-mining land rehabilitation increased with increased in the status of organic matter. The longer the age of reclamation, the wider range of soil fauna available. This showed that the longer the age of rehabilitation, this the soil organic matter, the number and diversity of soil fauna was also increased.
Test the potensial use of Trichoderma harzianum Rifai and Gliocladium virens Arx fungi to control leaf spot disease in cayenne pepper (Capsicum frutescens L.)
Authors: Sopialena Sopialena
Published: February 2020

This study aims to determine the effect of effective administration and dose of antagonistic fungus Trichoderma harzianum and Gliocladium virens that can suppress the intensity of disease attacks. So this indirectly has an effect to increase yield on cayenne pepper (Capsicum frutescens L.). This research is done about 4 months from May until August 2017 starting from preparation of research of Harvest. This research was conducted at Jl. Struggle 9 Village South Sempaja, North Samarinda District, Samarinda City and the Laboratory of Plant Disease Pest Faculty of Agriculture Mulawarman University. This study used Competely Randomized Design (CRD) consisting of six treatments and five replications. Without treatment (p0), Trichoderma harzianum with a dose of 24 g (p1), Gliocladium virens at a dose of 24 g (p2), 6 g T. harzianum + 18 g G. virens (p3), 12 g T. harzianum + 12 g G virens (p4), 18 g T. harzianum + 6 g G. virens (p5). The results showed that treatment of p1 with a dose of 24 grams Trichoderma harzianum able to suppress the intensity of disease attacks up to 17.08%. Treatment p2 with a dose of 24 grams Gliocladium virens is able to increase fruit weight to 19.95 grams.
Application of Bokashi Swallow Dirt to Some Properties of Land Chemistry and Growth and Results of Plant of Red Branch (Capsicum annum L.)
Authors: Alvionita Rini
Published: February 2020

The purpose of this study was to determine the best dose of swallow droppings that affect soil chemical properties with parameters of pH, Organic C, N, P, K on the soil and growth and yield of red chili. This research was carried out for 6 months starting from July 2017 to January 2018. The research location was on Jl. Mount Lingai North Samarinda. The design used was Randomized Block Design (RBD) consisting of five treatments and five replications. (P0) 0 g bokashi swallow bird polybag-1, (P1) 50 g bokashi swallow bird polybag-1, (P2) 100 g polybag-1, (P3) 150 g polybag-1, (P4) 200 g polybag-1. Soil seals were composted, then analyzed with soil pH parameters, organic C, N, P, K. The soil data obtained were analyzed based on the status of soil chemical research that had been developed by the Bogor research center in 2005. Plant data analyzed were plant height, number fruit/plant and fruit/plant weight. Plant data obtained were analyzed using variance, and followed by LSD testing at the level of 5%. The results of this study indicate that giving bokashi swallow droppings with a dose of 200 polybag-1 in P4 treatment showed an influence on some soil chemical properties, including soil pH from 5.01 to 5.31 with acid status; Organic C from 1.92 to 4.79 with very high status; Phosphorus (P) from 17.05 to 176.82 with very high status; Potassium (K) from 23.89 to 78.22 with a very high status on the soil. Meanwhile, Nitrogen (N) has decreased N levels from 0.26 to 0.25 with very low status on the soil. The bokashi application of swallow droppings showed a very different effect on the high growth of red chilli plants, while the yield of plants was not significantly different, namely the number of fruit and the weight of fruit/red pepper plants. The best response was found in P4 treatment which used a dose of 200 g polybag-1 with an average plant height of 32.12 cm; average number of fruits/plants 3.00; average fruit/plant weight 22.32 g.
Uji Jarak Tanam Terhadap Pertumbuhan dan Hasil Tanaman Terung(Solanum melongena L)pada SistemAgroforestri Tanaman Karet(Havea brasiliensis)
Authors: Purnama Elida , Pranoto Hadi , Sulichantini Ellok Dwi
Published: February 2020

The research was conducted to1). Optimaly planting distances analysis of eggplant in rubber agroforestry systemand 2). The research was conducted from May to September 2016 at Bunga Jadi district, Muara Kaman sub district, districtof Kutai Kartanegara.This research used a Randomized Group Design with single factor. The factor are planting distances ofeggplant with five level and five repetitions, those are 50 cm x 60 cm (j1), 60 cm x 60 cm (j2), 60 cm x 70 cm (j3), 70 cm x 70cm (j4), 70 cm x 80 cm (j5). The results showed, the planting distances treatment were not significantly effect of height ofplant, the number of leaves, the number of teas the blooming age, the weight of the fruit on 15, 30, 45 days after planting.And then the significantly effect on planting distances (60 cm x 70 cm) and total product of eggplant is 9.21 Mg ha1 in theweight of the fresh fruit per plot or hectare. Optimal product with distance of 60 cm x 70 cmis 9.21 Mg ha1(total production).The average production of eggplant in rubber agroforestry sistem is 7.82 Mg ha1 for 4 harvesting.The value of coefisientcorrelation in analysis covariant of multiple regression, r = 0.3459, the value of corelation is 34.59%, its showed thecorrelation value between treatment and production is low.
Aplikasi Indigenous Microorganism (Em-4) dan Pupuk Kompos Terhadap Pertumbuhan dan Produksi Tanaman Cabai Merah (Capsicum annum L.) pada Tanah Ultisol
Authors: Shanti Ratna
Published: February 2020

Red Chilli is commodity of vegetable that has high economic value, but still has slow productivity. The objective of this study was identify the effect of indigenous microorganism (EM 4) application and compost to increased the growth and yield of Red Chilli Plant (Cappcicum annum L) on Ultisol. Field trial was conducted on Ultisols in Horticulture Experimental Station, BatuahLoajanan, Kutai Kartanegara. The soil was characterized by low fertility status. The amount of organic matter and microbial acivity are very low. This trial was started on January until April 2017 using Split Plot Design with three replications Main plot consisted of two levels treatment i.e. without EM-4 (E0) as control and Effective Mikroorganisms-4 (E). Sub-plot was four rates of organic compost i.e. 0, 10, 20 and 30 tons ha-1 and chili was used as test plant.Results indicated that EM-4 treatment showed a significant effect on fruit yield of chilli. It increased the fruit yield 38 percent compare to control. Compost application significantly increased on fruit yield. The relationship between unfermented compost rate and fruit yield shows a linear regression YE0 = 1.699 + 0.047 X (r = 0.95) and quadratic regression for EM-4 fermented compost YE1 = 1,175 + 0,319 X – 0.007 X2(R2 = 0.603). Optimum compost rate was 23 ton.ha-1.To increased fruit yield of chilli, EM-4 fermented compost should be applied into and it can decreased compost rate application.
Penilaian Status Kesuburan Tanah pada Lahan Pascatambang di Areal PT. Trubaindo Coal Mining Kabupaten Kutai Barat
Authors: Ramadhana Dhian Dwi , Donantho Donny , Paranoan Ria Rachel
Published: February 2020

The aim of study is to assessing soil fertility status on post-mining land in the area PT. Trubaindo Coal Mining, West Kutai, East Kalimantan Province. Assessment of soil fertility is determined based on the method developed by Bogor Soil Research Institute (2005), that is by using descriptive comparative method where the data from the soil analysis are then compared with the standard criteria for soil chemical properties and the criteria for assessing soil fertility status developed. The results showed the status of the average value of the soil pH 4.62 (acid), C-Organic 1.08% (low), Nitrogen 0.09% (very low), Phosphorus 2.15 ppm (very low), Pottasium 65.53 ppm (very high), Cation Exchange Capacity 6.29 meq100g-1 (low), and Base Saturation 44,83 % (moderate). Soil of post mining land in PT. Trubaindo Coal Mining have a“low” fertility status, so further management action is needed to improve soil fertility status.
Aplikasi Kompos Limbah Sampah Pasar dengan Bioaktivator Larutan Keong Mas dan Trichoderma. Sp terhadap Tanah Bekas Tambang Batu Bara dengan Tanaman Uji Padi Gogo
Authors: Kesumaningwati Roro , Sari Nurul Puspita Sari Puspita , Purba Safryan William
Published: February 2020

East Kalimantan has a fairly extensive ex-coal mining area. Continuous mining activities cause severe land damage with a dramatically reduced nutrient. The application of organic farming can be one of the solutions to improve ex-mining land. One of the plants that can be applied is Situ Bagendit Rice. Rice Bagendit varieties are dry land rice which is resistant to pests and blast disease. The use of market waste, MOL golden snail, and Trichoderma. Sp as organic material can increase productivity in Bagendit rice plants there and be able to repair damage to ex-coal mine land. The aim of this study was to compare market waste, MOL golden snail and Trichoderma sp to Bagendite rice plant growth. This study used the RAL method (Completely Randomized Design) with 9 treatments and 3 replications. B0 control (soil without additives), B1 compost market waste and Trichoderma sp with a dose of 100 g/polybag, B2 market waste waste compost and MOL golden snail with a dose of 100 g/polybag, B3 compost market waste and Trichoderma sp with 200 g/polybag, B4 market waste compost and MOL golden snail with a dose of 200 g/polybag, B5 market waste compost and Trichoderma sp with a dose of 300 g/polybag, B6 market waste compost and MOL golden snail with a dose of 300 g/polybag, B7 market waste compost and Trichoderma sp with a dose of 400 g/polybag, B8 market waste compost and MOL golden snail with a dose of 400 g/polybag. The results showed that Trichoderma sp market waste compost fertilizer and golden snail market MOL waste compost each had a significant effect on the productivity of bagendite rice plants. In addition, MOL market golden snail waste compost with the best dosage of 400 g/polybag is able to produce harvested dry grain production of around 2.8 tons/ha.
Aspek Biologi Sycanus annulicornis Dohrn. (Hemiptera: Reduviidae) Yang Dipelihara Dengan Pakan Alternatif Larva Alphitobius diaperinus Panzer (Coleoptera: Tenebrionidae)
Authors: Sahid Abdul
Published: February 2020

Assassin Bug, Sycanus annulicornis Dohrn. (Hemiptera: Reduviidae) is one of the predatory polyphagous insects that has the potential to be used as a natural enemy in pest control in food crops, horticulture, plantations, and forestry plants. This study aimed to evaluate the biological aspects of S. annulicoris maintained with alternative feeds of Alphitobius larvae diaperinus Panzer. The results showed that S. annulicornis maintained with A. diaperinus larvae produced an egg incubation period of 19.0 ± 2.1 days, fecundity of 88.1 ± 46.0 eggs, fertility of 41.8 ± 11.4%, time of development of nymphs 82.4 ± 6.4 days, mortality of nymphs 53.5 ± 3.3%, duration of male and female imago: 36.3 ± 12.8 and 61.1 ± 18.1 days, male sex ratio: female 1: 4, and the male and female S. annulicornis imago life cycle: 118.7 ± 9.6 and 143.5 ± 12.3 days. The results showed that A. diaperinus larvae could be used as an alternative feed for mass propagation of S. annulicornis in an integrated pest control program.
Pertumbuhan dan Produksi Padi (Oryza sativa) Pengaruh Pengapuran dan Pemupukan Pada Ultisol
Authors: Shanti Ratna
Published: February 2020

Tanah di Kalimantan Timur di dominasi oleh tanah Ultisol, tanah ini memiliki kesuburan tanah yang kurang menguntungkan bagi pertumbuhan dan produksi tanaman padi sawah.Penelitian ini telah dilakukan di lahan sawah milik petani di Desa Bukit Raya, Teluk Dalam, Kabupaten Kutai Kartanegara.Tujuan dari penelitian ini yaitu untuk mengetahui pengaruh pengapuran dan pupuk NPK terhadap perubahan sifat kimia tanah dan produksi tanaman padi.Rancangan yang digunakan adalah Rancangan Acak Kelompok (RAK) Faktorial dengan dua faktor. faktor I adalah dosis pengapuran yang terdiri dari 3 tingkat yaitu P0, P1, P2 (0,1,2 ton Ha-1) dan faktor II adalah dosis pupuk NPK Granul terdiri dari 5 tingkat yaitu N0: 0 Kg Ha-1; N1: 100 Kg Ha-1 NPK Granul + 100 Kg Ha-1 Urea; N2: 200 Kg Ha-1 NPK Granul + 100 Kg Ha-1 Urea; N3: 300 Kg Ha-1 NPK Granul + 100 Kg Ha-1 Urea; dan N4: 400 Kg Ha-1 NPK Granul + 100 Kg Ha-1 Urea. Data tanaman meliputi tinggi tanaman (1 dan 2 bulan), jumlah anakan perumpun (1 dan 2 bulan), jumlah malai berisi rata-rata perumpun, berat rata-rata 1.000 biji GKG dan produksi GKG Ha-1. Hasil penelitian ini menunjukan bahwa perlakuan pengapuran pada tanah ultisol tidak menunjukan respon terhadap tanaman padi sawah sedangkan pemupukan nitrogen (N) menunjukan respon terhadap pertumbuhan dan produksi padi bersifat linier dengan persamaan yCa0 = 0.0049x + 2.6322 r = 0.8657 ;yC1 = 0.038x + 3.0745 r = 0.9210 ; yCa2 = 0.0071x + 2.321 r = 0.84342.