Import of rice as staple food is increasing every year following the increase of Indonesian population. Therefore, staple food diversification as rice substitute is needed by promoting glutinous corn rice. Glutinous corn rice is consumable for human and can be made only from local waxy corn. The problem is that the production rate of waxy corn is still low that the availability of main ingredie…
Global awareness of halal product is rising. Indonesia is a huge market for halal product, and has just legalized regulation on halal product guarantee. The recent dynamics urge the importance of knowledge of consumer’s behavior on halal product. This study attempted to describe consumer’s behavior, especially on the consumption of chicken-based food that is very popular in Indonesia. The c…
This paper aims to give a contribution in building a brand strategy for a big cooperative company operating in the fruit and vegetable production field in the South of Italy willing to launch new sales channels, namely box-scheme and e-commerce, in order to increase the sells on local scale and partially reduce the dependence from the large scale distribution. The main expected effects of such …
From 2006 to 2011, in the Tomsk region (south of Western Siberia), eight species of pathogens were detected in birds and the ticks feeding on them: Tick-borne encephalitis virus (TBEV),West Nile virus (WNV), Borrelia spp., Rickettsia spp., Bartonella spp., Anaplasma spp., Ehrlichia spp., and Babesia spp. The identification of a number of strains of viruses and bacterial genovariants related geo…
The red ginger (Zingiber officinale. Rosc.) is an annual herbaceous plant of high economic value, with a harvest of 10-12 months. The export demand of red ginger rhizome has increased up to 20-22 % for the last five years and it has not been able to be sufficed by the red ginger producers in Indonesia. This situation happens because of the very limited amount of red ginger production area, a st…
Sustainable agriculture is closely related to farming practices. In order to attain sustainable agriculture, there are many farming practices such as land preparation, used of fertilizers and weedicides among other indicators of farming practices. In particular,weed and pest control are focal points for certain crops such as cotton, rice, vegetables, and fruit with heavily applied chemical inpu…
This paper seeks to provide a framework for determining the effect of malt dextrin concentration and drying temperature to antioxidant content of Sinom beverage powder and to determine the effect malt dextrin concentration and drying temperature to the production of Sinom beverage powder which containing best antioxidant content. This study use the split plot design with the factorial consis…
This research aimed to analyze the effect of fertilization of N, P and application of green manure of crotalaria to increase yield of maize plant in marginal dry land. The experiment was carried out at the dry land of South Sulawesi Province, Indonesia from June to September 2013. This research was designed by using Split Plot Design. The main plot used green manures which consisted of two leve…
Over the last years, numerous evidence on the existing relationship between nutrition and chronic degenerative diseases have led investigators to search for the optimal dietary pattern to maintain a good health status. It's well known, in fact, that nutrition is capable of substantially modifying the risk profile of a subject in primary and/or secondary prevention. Several models of diet have b…
Dependence of most Indonesian people on rice as their staple food would be very detrimental when the government is unable to meet its needs. Therefore, there must be food substitutes that come from local commodities, which are cheap and easily available,namely cassava. The problems is, that local food substitutes of rice constrained by the relatively more complex processing. This study aims to …
The results of an investigation of the helminth fauna of musk deer, Siberian roe deer andManchurian deer in Primorsky Krai are provided. Regarding themusk deer, the nematodes Spiculopteragia spiculoptera, Nematodirus filicolis, Pygarginema skrjabini and Trichuris sp. have been registered. The intensities of the infections ranged from1 to 6 specimens. In one case, 66 specimens of P. skrjabini we…
Rust disease, caused by Phakopsora pachyrhizi, Syd. is one of the many diseases that cause losses and important disease of soybean in soybean producing countries in Asia, Australia, USA and Indonesia. The disease has resulted also it is very significant in economic losses in Taiwan, Thailand, Indonesia, Philippines, Vietnam, and in some parts of China, Japan, Australia, Korea,and India. Experim…
The aim of this research is to know the influence of packaging on quality change of carrots during transportation. While this research specifically aims to (1) find out the influence of the type of secondary packaging on quality of carrots during transport,(2) know the influence of the type of secondary packaging on quality of carrots with different transport time. This research uses the packag…
This experiment has an object to study the response of four potato cultivars to paclobutrazol and paranet shade application in medium plain. Land height is about 700 m about sea level and experimental design in use is Split-Split Plot Design. Three factors used as treatment in this experiment are paranet shade of without shade (0%), shade of 30%, and 50%, four cultivars potato (Granola, Atlanti…
Floods are natural processes. Urbanization and increasing population density as well as a concentration of economic values in flood prone areas have increased the risk in many regions. Perception of the flood hazard and the associated risks in many cases is low, if not inexistent, particularly in such areas considered to be safe, e.g. behind dams or levees. This study presents the results withi…
Abstract Background: The austenitic stainless steel 304L is widely used as a structural material for which the finished surface has significant effect on the service performance. A study of the grinding process with regard to the quality of the ground surfaces is therefore interesting from the point of view of both industrial application and scientific research. Method: This work investigat…
Abstract This paper presents a numerical study of heat transfer inside the adsorber-collector of a solar adsorption refrigerator using the activated carbon AC35-methanol pair. The objective is to estimate the amount of the heat loss through the adsorber-collector, during the solar heating phase, and to determine the effect of heating time on the thermal efficiency of the system. The numeric…
Abstract Background: The Saint-Venant problem for porous elastic cylinders is of interest both from the technical and mathematical point of view. The intended applications of solution are to mechanics of bone and to some engineering structures. Method: This work investigates the Saint-Venant problem for almost prismatic bars made of an isotropic porous material. We express the solution in …
Purpose – The purpose of this paper is to review the life of the famous mathematician Kiyosi It^oo: and discuss his influence on the study of agricultural finance and agricultural economics. Design/methodology/approach – This paper is a qualitative historical review. Findings – The paper provides a biographical stretch of It^oo:’s life. It is shown that his influence started to infiltr…
The research objective is to overcome the negative effects of the very high N supply for the sugar content of sugar cane. While on the other hand in order to produce high sucrose, sugarcane requires a supply provided approximately 350 kg N/ha. Experiments conducted on the sugar cane plantations containing available N higher than 2500 kg/ha. The treatments were: 1)without spraying of Si-fertiliz…
A helminthological study of six adult Siberian roe deer (Capreolus pygargus) individuals from Primorsky Krai was performed. The abomasa and small intestine contents were assessed. All animalswere infectedwith nematodes, and the intensity of infection ranged fromtens to hundreds of specimens. Spiculopteragia spiculoptera was the dominant species, and Mazamastrongylus dagestanica and Nematodirus …
The role of ethics, even in its absence, is essential in the economic discourse, despite its shifting through different theories. From the political Aristotelian tradition to the recent reflection about the concept of postmodern society – through the theory of maximizing the personal interest belonging to Utilitarianism– the moral questions and its dilemma, either accepted or rejected as…
Coffee residue had polyphenol content 18.180 mg/g, yet its extract contained 1.746 mg/g polyhenol. Oxidized tapioca had comparable characteristics to alginate as an encapsulant material. Suspension concentration for encapsulation preparation was 5% (w/v) ( encapsulant material/antioxidant extract). Microcapsul which is made by 25% oxidized tapioca starch had loading capacity 33.18%, capsul par…
Abstract Background: Strain and stress conditions in sheet metal shearing are of interest for calibration of various fracture criteria. Most fracture criteria are governed by effective strain and stress triaxiality. Methods: This work is an attempt to extend previous measurements of strain fields in shearing of steel sheets with the stress state calculated from the measured displacement fie…
Abstract Background: Impedance pump is a simple valveless pumping mechanism, which transports fluid through the mismatch of impedance in the system. Mismatch in impedance occurs when an asymmetrical periodic excitation is exerted on the elastic tube. Periodic asymmetrical excitation will then produce a unidirectional flow. Considering a multi-stage system with a single and constant power so…
Abstract In this study, bidirectional dc–dc (BDC) converterbased dynamic voltage restorer (DVR) is proposed for compensation of severe voltage sag/swell problems in a medium voltage system. Among these problems, voltage swells provoke the voltage rise at dc-link capacitor of DVR. This undesirable situation may explode the dc-link capacitors and switches, and cause high-power losses. In DVR …
Abstract The aim of this work is the synthesis of a type-2 fuzzy logic PID controller for DC–DC boost converters. Performances of the proposed controller are evaluated and compared with those of type-1 fuzzy logic PID controller using the same structure and under similar operating conditions. Simulation results showed that the type-2 fuzzy logic PID controller has better performances than t…
Abstract In this paper, the modal series method is revisited and an extension on the method to include higher order terms is proposed. This proposal is based on the introduction of the multidimensional Laplace transform and association of variables theorems to deduce the analytical closed-form solution when it is applied to the analysis of a nonlinear power system model. The method is systema…
Abstract The time synchronous averaging (TSA) is a wellknown technique used for early detection of bearing failure in electrical machines. This method is very efficient if the characteristic default frequency is perfectly known. In this article, a reduced frequency model, derived from ESPRIT algorithm, is used to provide a very accurate estimation of the fault frequency. The precision obtaine…
Abstract This paper proposes a simplified finite-controlset model predictive current control (FCS-MPCC) without mechanical sensors for permanent-magnet synchronous generators (PMSGs) in variable-speed wind energy conversion systems. The procedure of selecting the best switching vector is optimized by computing the reference voltage vector (VV) directly from the reference current. Subsequently…
Abstract this paper presents a sensorless control approach of inverter dc-bus voltage using extended Kalman Filter (EKF). A positive sequence detection of grid voltage and load current is also proposed. The dc-bus voltage estimated by EKF is combined with the modified instantaneous power (p–q) control technique for photovoltaic system application to improve electrical energy quality at the …
Abstract The harsh operating environments of many electronic systems, such as in the automotive and aerospace applications, make the semi-permanent connector terminal susceptible to intermittent failure or high contact resistance. Fretting, small cyclic movements at the contact interface, is exacerbated by oxidation to cause fretting corrosion, resulting in these types of failures. However, d…
Abstract This paper characterizes the error in distance relay operation due to the existence of asynchronous frequency components when a fault in a line with series compensation occurs. The distance relay model and the impact of nonfiltered frequency components using the conventional digital filters is presented, an errorwill appear in voltage and current fundamental frequency phasors estimat…
Abstract This paper develops a precise proportional–integral (PI) type control system for repeatable tracking control of a permanent magnet synchronous motor (PMSM) under motor parameter and load torque variations. By adding a very simple learning feedforward term, a conventional PI control system can be enforced to have a perfect tracking performance under model parameter and load torque v…
Abstract This paper investigates the operation of a DC microgrid which is connected to a DC distribution network using a modular-isolated bidirectional DC–DC converter. The bidirectional power flowcapability of the proposed modular converter provides the possibility of power exchange between DC microgrid, and DC distribution network contains some microgids. The extendable configuration of t…
Abstract Power transformer protective relay should block the tripping during magnetizing inrush and rapidly should operate the tripping during internal faults. There are a variety of protective relays using different measuring techniques to provide reliable and secure transformer protection. These types of the protective relays include electro-mechanical, solid state, digital and numerical re…
Abstract This paper presents genetic algorithm optimization method with a suitable objective function to determine optimum location and rated values of FACTS devices by taking into account changes in the power system load over time. In this study, annual daily load profile is considered as a whole instead of an instant load profile while looking for optimum size and location of FACTS devices.…
Abstract This paper proposes a new multi-objective dayahead market clearing (DAMC) mechanism with demand response offers, considering realistic voltage-dependent load modeling. This paper presents several objectives such as Social Welfare Maximization including demand response offers (SWM), Load reduction Minimization (PredM), and Load Served Error (LSE) minimization. Energy and demandside r…
Abstract Optimal reactive-power dispatch (ORPD) is one of the most difficult optimization problems regarding to power-system operation which is heavily related to system stability. To overcome ORPD problem, in general, the total real-power loss is reduced by determining the power-system control parameters, such as generator voltages, tap ratios of tap-changer transformers, and compensated rea…
Abstract Single-tuned passive filters offer reasonable mitigation for harmonic distortion at a specific harmonic frequency with a high filtering percentage, but resonance hazards exist. Traditional damped filters offer high-pass filtering for the high-frequency range, but suffer from extra ohmic losses. C-type filters may operate in a manner similar to the tuned filters with lowdamping losses…
Abstract The paper suggests a new procedure for the estimation of the parameters (amplitude and phase) for a complex periodic signal, based on the concept of analytic signal (AS). Starting from the supposition that the signal fundamental frequency has been estimated in advance at an independent stage, new analytical relations are derived for fast calculation of the unknown parameters, entail…
Abstract The paper deals with the influence of a loss of one phase of a feeding source on the properties of a five-phase induction machine. The attention is paid to the waveforms of the currents in individual stator phases, the increase in torque pulsations and the decrease of speed in emergency operation after the disconnection of a faulty phase of the source. Machines in star, pentagon and …
Abstract The efficiency and installation costs of solarpowered drip irrigation systems depend on not only the efficiencies of the electrical motor, its driver, and the pump, but also the efficient usage of irrigation water. In this study, the initial installation costs and energy consumption of photovoltaic irrigation systems were decreased by obtaining the soil moisture level as a reference …
The article aims to present the problems that may arise in the implementation of the cadastral works on stock of wood, works in the extraurban areas, on the political boundaries. Solutions are being looked for as regards the assigned areas that are disintegrated by the boundary between districts, without compromising the law enforcement 165/2013 on the restitution of the abusively confiscated e…
Abstract The application of the XLPE cable under DC stress is now being considered as one of the promising tool for enlarging the limited transmission capacity of the traditional electric power cable due to the several technical advantages. Therefore, many research institutes are trying to improve the performance by carrying out experimental investigations related to the reliability of the ca…
Abstract The formulations employed to the optimization of passive filters can be classified as formulations of a single objective or formulations with multiple objectives. The single-objective formulations normally are devoted to determine the filters of lowest cost that assure the compliance with the power quality standards, while in the multi-objective approaches are added other goals that …
Abstract It has been conventionally believed that there exist 4n variables P, Q, V, θ for an n-bus system in the power flow computation, while we have 2n power flow equations. In this article, the authors argue that the number of variables in an nbus system is not 4n but 4n−1, hence the power flowsolution can be obtained without specifying the reference angle of the slack bus.We then deliv…
Abstract The effect of high photovoltaic (PV) penetration with constant injected voltage on the loss of excitation phenomenon of single machine infinite bus power system with two transmission lines has been investigated. The PV modules are integrated to the power system at the same bus of the synchronous generator via DC–DC buck–boost switch mode converter, three-phase DC–AC switch mode…
Abstract This article deals with the problem of electrical discharge initiation in mineral oil in the setup of insulated electrodes. The results of laboratory experimental studies were collated with the results of the numerical calculations of electrical field stress. Both kinds of the research methods were applied to analyze the two model electrode setups immersed in mineral oil: setup with …
This paper presents a case study on realizing a 3D model of surfaces that will be leveled in order to build a shopping center. In the first phase, devices and methodology adequately used are presented, being adapted specifically to the existing situation on the ground and to the required accuracy for lifting. Results desired in this case study are primarily focused on tracking effectiveness,…