bluuebunny/crossref_metadata_2025 huggingface dataset:
Celery (Apium graviolens L.) extraction as the inhibition of pathogenic microorganism in broiler
Authors: Nuningtyas Y F , Sjofjan O , Djunaidi I H , Natsir M H
Published: January 2020

Pathogenic bacteria in the digestible tract can inhibit the optimization of the feed absorption on broiler chicken. The research aimed to determine the ability of the inhibition of bioactive compounds on celery as pathogenic bacteria such as Salmonella, Escherichia coli, and Clostridium perfringens was found in broiler digestive tracts. The stages of the study were the determination of celery plants and inhibitory test on Salmonella, Escherichia coli and Clostridium perfringens with P0 concentration: negative control (aquades), P1: positive control (5 μg / ml amoxicillin), P2: 2,5 mg / ml celery extraction, P3: 5 mg / ml celery extract, and P4: 10 mg / ml celery extraction. Variables observed were the inhibition zone diameter using the disc method. The data obtained were tabulated with the Microsoft Excel program, then analyzed by a completely randomized design (CRD) where the significant differences analyzed used Duncan's analysis. Based on the results study showed that plant determination was celery (Apium graveolens, L.). The addition of celery extraction with a concentration of 10 mg/ml showed a higher inhibitory power compared to the use of antibiotics against Salmonella and E Coli bacteria.
Optimizing productivity of fat-tail sheep using single cell protein in concentrate
Authors: Ndaru P H , Hermanto  , Kusmartono  , Huda A N
Published: January 2020

Application single-cell protein in ruminant feed has a purpose to fattening, which one of parameter to measure is average daily gain (ADG). The name of single-cell protein in this research is ajitein. The research aimed to evaluate the nutritive value of ajitein toward feed consumption, average daily gain and feed conversion in fat-tailed sheep. In this research, ajitein was mixed with other feedstuffs (soybean meal, pollard, coconut cake, corn bran, palm cake, molasses, urea, and minerals) and the crude protein in this concentrate was isoprotein (22%). The treatments in this research consist of P0: elephant grass (ad libitum) with concentrate; P1 : elephant grass (ad libitum) with concentrate (ajitein 2%); P2 : elephant grass (ad libitum) with concentrate (ajitein 4%); P3 : elephant grass (ad libitum) with concentrate (ajitein 6%). The result showed that the highest feed intake in this research was P0 (104.9 ± 12.90 g / kg BB0.75 / day). Then the higher body weight gains are P0 and P3, with 140 g/head/day respectively. The feed conversion of P3 was 6.6 ± 0.87. The conclusion was P3 had good ability to change the feed to be meat more effective.
The estimation of economic losses due to coccidiosis in broiler chickens in Central Java, Indonesia
Authors: Pawestri W , Nuraini D M , Andityas M
Published: January 2020

Coccidiosis is an intestinal parasitic disease caused by Eimeria. The investation of Eimieria can negatively alter poultry health and reduce the productivity of poultry. Decreasing of broiler production can cause economic loss to the farmer and further to the domestic economic. This paper aimed to estimate the economic loss due to coccidiosis in broiler chicken in Central Java Province. The calculation was made based on two parameters: epidemiologic parameter and economic parameter. The data for calculation was based on previous research data and current data. The estimation was calculated using two approaches: direct and indirect method. The direct loss related to the production system cost and extra cost due to coccidiosis cases while indirect loss related to the economic loss in Central Java that could be affected by coccidiosis. The result showed that the direct loss estimation was Rp 3,371,408,383,426,- and indirect loss was Rp 141,430,086,- with a total estimation of economic loss in Central Java due to coccisiosis was Rp 3,371,549,813,512,-. This estimation indicates the importance of coccidiosis control program in poultry industry.
Exterior quality of Japanese quails egg from brown and black japanese quail crosses
Authors: Wati A K , Dewanti R , Fadilla P , Rifki M , Cahyadi M
Published: January 2020

This research was conducted to determine the exterior quality of brown and black Japanese quail crosses. Two hundred Japanese quails were divided into four types of lines as treatments: male brown VBC1 and female black VBC2 (BL1), male brown VBC2 and female black VBC1 (BL2), male black VBC1 and female brown VBC2 (LB1) and male black VBC2 and female brown VBC1 (LB2). Each treatment consists of 50 quails as replication. Exterior quality testing used 10 weeks old quail eggs. This study used a Completely Randomized Design (CRD). The data observed in this study was the egg weight, egg length, egg width, egg index, eggshell weight, and eggshell thickness. Besides, the data were analyzed using analysis of variance, and pairwise differences among quail lines were conducted using Duncan's multiple range test (DMRT). The results showed the egg weight and egg width were significantly different among lines (P<0.05) and four types of lines were not significant (P>0.05) on the egg length, eggshell weight, eggshell thickness, and egg index. It can be concluded that the best exterior quality of eggs was produced from male black quail VBC1 and female brown VBC2 in terms of egg weight.
Evaluation of the quality of organic fertilizer on different ratio of cow manure and laying hens manure
Authors: Utami M M D , Sutirtoadi A , Jawawi A J A , Dewi A C
Published: January 2020

The study evaluated the quality of organic fertilizer on the different ratios of cow manure and laying hens manure. The study used a completely randomized design with five treatments, such as T0 (100% cow manure), T1 (75% cow manure and 25% laying hens manure), T2 (50%cow manure and 50% laying hens manure), T3 (25% cow manure and 75% laying hens manure) and T4 (100% laying hens manure). The parameters observed in this study contained nitrogen (N), phosphor (P), potash (K), carbon (C) organic, C/N ratio, and pH. The results showed the ratio of cow manure and laying hens manure had a significant effect (P<0.05) on the content of the N, P, K, C organic, and the C/N ratio, but no significant effect (P>0.05) on pH. The fertilizer with laying hens manure had the highest (P<0.05) contain N (1.57%), P (1.39%) and K (1.31%), but the lowest of the C/N (14.67%).
Fermentability and Digestibility Responses of Prill Fat Supplementation in Dairy Ration
Authors: Riestanti L U , Retnani Y , Despal
Published: January 2020

Prill fat is a non-hydrogenated vegetable oil and contains more than 85% palmitic acid with high melting point. Due to this reason it does not melt at rumen temperature and bypass rumen degradation. This research was to measure the characteristic of fat high in palmitic fatty acid by its utilization in ruminant. This research held in the Laboratory of Dairy Science, IPB University. This research used Randomized Block Design with 4 treatment and 4 replication: P1 (control without treatment), P2 (control + 2% of high palmitic acid fat 78%), P3 (control + 2% of high palmitic acid fat 86%), P4 (control + 2% of high palmitic acid fat 96%). The variables observed included rumen fermentation characteristics (pH, volatile fatty acid/VFA, and ammonia (NH3) concentration), dry matter and organic matter digestibility. Data obtained were analyzed using Analysis of Variance (ANOVA) and the significant different among treatments were further tested using Duncan. The result showed prill fat supplementation was significantly affected the total VFA concentration (P<0.01) and dry matter digestibility (P<0.05). Supplementation of prill fat had no effect on pH, NH3 concentration, and organic matter digestibility. It was concluded that prill fat supplementation of 96% palmitic fatty acid can be used to augment the VFA production and ruminal digestibility at the level of 2%.
The Effect of Wheat Bran Dietary Fibre on Cholesterol Content of Egg Yolk Laying Ducks
Authors: Pantaya D. , Effendi R. A , Wulandari S , Suryadi U.
Published: January 2020

To determine the influence of level of wheat bran supplementation on production performance, and egg yolk cholesterol traits of laying ducks, 48 laying ducks (40-week-old) were randomly assigned into four groups with 4 replications of 3 birds each. Treatment 1 ducks were received the control diet without wheat bran contained 17,21 % CP and 2917 kkal ME/kg. Treatment 2,3 and 4 ducks were received the basal diet supplemented with 10,20 and 30% wheat bran for 8-weeks. Results showed that dietary supplementation of wheat bran had no effect (P>0.05) on laying ducks egg production and feed egg ratio over the entire feeding period. Yolk cholesterol content was lower (P<0.05) in all wheat bran supplementation at one day after treatment. There were decreased (P<0.05) contents of yolk cholesterol compared to ducks fed control diet but no difference was exhibited in egg yolk cholesterol among diet with wheat bran supplementation. It could be concluded that wheat bran supplementation could lower an egg yolk cholesterol levels and improve the egg quality in laying ducks.
Inhibition of Listeria monocytogenes by natural antimicrobial
Authors: Budiati T , Wibisono Y , Pambayun R A , Fahrezy M F , Ariyani R , Kurniawati E , Suryaningsih W , Yudiastuti S O N , Bakri A
Published: January 2020

The aim of the study was to evaluate antimicrobial activity of essential oil from plants as natural antimicrobial to inhibit Listeria monocytogenes. A total of 6 essential oil extracted from galangal (Alpinia galanga), ginger (Zingiber officinale), lemongrass (Cymbopogon citratus), orange skin (Citrus sinensis), rosemary (Rosmarinus officinalis) and turmeric (Curcuma longa). By using Minimum Inhibitory Concentration (MIC), the highest and lowest antimicrobial activity of essential oil to inhibit the growth of L. monocytogenes was found on lemongrass oil (0.32 % ± 0.12 %) and turmeric (7.46 % ± 2.79%), respectively. By using disc diffusion assay, the highest antimicrobial activity to against L. monocytogenes was shown by lemongrass oil (7.46 ± 2.79 mm). There is no antimicrobial activity observed in orange peel oil. Out of the essential oil tested, lemongrass oil showed the most promising natural antimicrobial to inhibit L. monocytogenes.
The mixture of soybean powder and dragon fruit peel powder as high fiber functional drink
Authors: Rosiana N M , Suryana A L , Olivia Z
Published: January 2020

Dietary fiber intake provides many health benefits. Individuals with low intakes of dietary fiber appear to be at significantly higher risk for stroke, obesity, diabetes,hypertension, certain gastrointestinal diseases, and coronary heart disease. Functional drink with higher fiber is expected to increase fiber intake in society. The aims of the research is to investigated the charateristic of the mixture of of soybean powder and dragon fruit peel powder as functional drink. All experiment were designed in complete random. Dragon fruit peel powder and soy powder were mixed according to the treatments. The result showed that dragon fuit peel powder give higher water content, soluble, insoluble and total dietary fiber. Moreover the color functional drink from dragon fuit peel powder have darker and red color..
Antioxidant activity and Total Phenolic Contents of Bread Enriched with Pumpkin Flour
Authors: Wahyono A , Dewi A C , Oktavia S , Jamilah S , Kang W W
Published: January 2020

Pumpkin is abundantly available in Indonesia and well known to contain high dietary fiber, β-carotene and phenolic compounds. The objective of this study was to evaluate the effect of pumpkin flour enrichment to the antioxidant activity and total phenolic content of bread. Breads were made by partially replacing of wheat flour with pumpkin flour at the level of 5% to 20%. The results showed that pumpkin flour significantly (P<0.05) enhanced antioxidant activity of enriched bread measured by DPPH and ABTS. The highest antioxidant activity was observed in bread with enrichment of 20% of pumpkin flour. At highest values, antioxidant activity were 76,59% (DPPH) and 81,74% (ABTS), respectively. Total phenolic contents of enriched bread were also significantly affected by increased level of pumpkin flour. The highest total phenolic content (5,39 mg GAE/g) was observed in bread with enrichment of 20% pumpkin flour. Whereas, control bread contained total phenolic content of 1,38 mg GAE/g. Thus, we concluded that pumpkin flour can be employed to enhanced antioxidant activity and total phenolic content of bread.
The Analysis of Consumer Perception on Quality of Soybean Milk Used Importance Performance Analysis Method
Authors: Kurnianto MF , Wibowo M J , Hariono B , Wijaya R , Brilliantina A
Published: January 2020

Consumer perception on food quality is a key performance indicator for success in food industri development. Many factors influence consumer perception on food quality. The purpose of this study was to identify the attributes of food product and evaluate it’s performance to find out attributes based on consumer perception. This study uses marketing mix 4P namely Product (product), Price (prices), Place (where / location), Promotion (promotion). The respondent in this research was the consumer that bought and consumed soybean milk in Jember. The sampling technique used accidental sampling with a number of sample is 75 people, based on linier time function. The analysis of data used Importance–Performance Analysis. The result of this research showed that taste of product, flavour of product, and expired date of the product, and the price of product were the key atributes of soybean milk quality.
Functional characteristics and added value siger rice based on cassava as a local food source
Authors: Analianasari A , Hidayat B , Trisnanto T B
Published: January 2020

The purpose of the study was to analyze functional characteristics (crude fiber content, dietary fiber content, starch content, and antioxidant content) and the added value produced by cassava in different siger rice. The study consisted of collecting not fermented and fermented siger rice (MOCAF) from several districts in Lampung. The analysis of functional characteristics variants of siger rice, and calculating the added value of cassava into various variants of siger rice. The results showed that siger rice can be used as a functional food product because it has a high content of crude fiber, dietary fiber, starch content, and antioxidant activity. The functional characteristics can anticipate unhealthy eating patterns, as well as to help avoid over nutrition and degenerative diseases. Siger rice processing to business actors is a capital-intensive business due to the distribution of labor benefits that are smaller than the profits of siger rice business operators.
Effectiveness of Edible Film impregnated by Vegetable Waste Filtrate on Dodol
Authors: Smeets-Rittichai R , Agustina I , Budiati T
Published: January 2020

Dodol is one of the semi-wet products (Intermediate Moisture Foods) made from a mixture of sugar and lipid so it is easily to be oxidized and become rancid. By using edible film with antioxidant the rancidity can be reduced. Vegetable waste (eggplant peel and chinese cabbage root) were composed by bioactive compound as natural antioxidant which can be incorporated with edible film. The results showed that the addition of vegetable filtrate on edible film had a significant effects on its antioxidant activity. The antioxidant activity of BHT, eggplant peel filtrate and chinese cabbage filtrate were 12.17%, 11.72% and 8.53%, respectively. Edible film impregnated by eggplant peel filtrate was effective as natural antioxidant in dodol.
Farming Bot: Precision Agriculture System in Limited Land Based On Computer Numerical Control (CNC)
Authors: Kautsar S , Rosdiana E , Widiawan B , Setyohadi D P S , Riskiawan H Y , Firgiyanto R
Published: January 2020

Indonesia is a vast country both sea and land, but as population development and growth continues to increase, the land that is usually used for agricultural land is now changing into residential land. This narrowing land is the biggest challenge that must be faced today. Basically, farming activities require a knowledge base that is land use, seeds/seedlings, cultivation, processing, to marketing. However, cultivation on land is limited by several methods of land use such as the use of roof gardens need to be considered well because it requires a large investment and careful planning. One way that can be done is through modern technology for energy efficiency and time. In this study, a precision farming system was created using Computer Numerical Control (CNC) technology. CNC is a machine tool automation system that is operated by command, randomly programmed and stored in storage media. By using CNC technology, it allows the machine to follow the coordinate points that are entered into the system accurately. The command to drive a CNC machine is usually called the G-Code. The accuracy of the machine motion using a stepper motor can reach 1 mm. The system is made, similar to the control system on a 3D Printer machine with a wider work area. Later, the machine-made will be named "Farming-BOT", short for Farming Robots or robots for farming..
Utilization of Rhizobium spp as substitution agent of nitrogen chemical fertilizer on soybean cultivation
Authors: Damanhuri  , Erdiansyah I , Eliyatiningsih  , Sari V K , Pratama A W , Wiharto K S
Published: January 2020

Rhizobium is one of the important microorganisms in free nitrogen fixation. The study aims to determine the use of Rhizobium spp as substitute for chemical fertilizer Nitrogen on soybean cultivation. The experiment design was a randomized complete block with four replications, using Rhizobium isolate in granule and powder media with spraying volume 600cc/kg granules and 400cc/kg of powder. The treatment dosage consisted of 3 g; 4 g; 5g and 6 g/plant, while the control was Phonska fertilizer 1,5 g/plant. The results showed that the use of rhizobium granules and powder as much as 4 g / plant was not significantly different in the formation of root nodules compared with control; the use of Rhizobium in granules and powder 6 g/plant for the number of pods did not show a significant difference; the use of 4 g - 6 g/plant for seed weights compared to controls also did not show a significant difference. The use of Rhizobium isolate 400cc/kg granules and 600cc/kg of powder can be used to replace the use of Phonska in soybean cultivation.
Microhydo potential in Gunung Pasang plantation Panti Jember East Java
Authors: Rahmanto DE , Wibowo M J
Published: January 2020

Gunung Pasang plantation is located in Panti-Jember. The Gunung Pasang plantation actually already has a Francis type microhydro turbine with a power output of around 30 kW. However, this power is still too small when compared to energy needs in plantations which can reach 90 kW. The aim of this study is to find the potential of micro-hydro energy in the Gunung Pasang plantation as a reference for developing micro-hydro energy in the plantation. Potential studies are carried out by measuring the discharge using a current meter and measuring the difference of elevation using a automatic level and altimeter. The result of measurement of potential river flow discharge in the dry season is 0.202 cms. The difference in elevation measured at the first point is 54.19 meters and the second point is 113.09 meters. Microhydro power potential by taking a discharge 0.18 was calculated for the first point and the second as 69.61 kW and 145.27 kW, respectively. Utilisation of potential power in the second point was able to meet the electricity needs of the plantation. Economic feasibility analysis is needed if the micro hydro potential is to be developed.
Evaluation of Rock Slope Stability based on Multi-Dimension Cloud Model
Authors: Ran Shuyuan
Published: January 2020

In this paper, slope stability is classified into five grades in terms of very steady, steady, basically steady, unsteady, and very unsteady. Ten indicators of slope height, tendency difference between structural plane and slope, structural plane inclination, etc., were selected. To solve the uncertainty and randomness, multi-dimension cloud model was applied with weights determined by projection pursuit method. The grade of steadiness was determined by maximum subject degree. The method was applied to 34 rock slopes to assess stability. The accuracy of the method reaches 50%, which indicates that the method has higher accuracy, and can be applied to other fields.
Research on Security Risk Assessment Based on the Improved FAHP
Authors: Li Wenmin , Liang Ye , Wang Wenyu , Jin Xueqi , Kong Piaohong , Jiang Zhengwei , Shao Lisong
Published: January 2020

In order to reduce the subjectivity of information security risk assessment process and improve assessment efficiency, we propose a new method of information security risk assessment based on improved FAHP (Fuzzy Analytic Hierarchy Process) to analyse the information security-related standards for domestic and international risk assessment. We establish a Hierarchical Security Assessment Model and introduce refinement indicators and Intuitionistic Fuzzy Sets to reduce subjective judgment factors in the assessment of traditional risk. We then applied an e-commerce company in case analyse the security risk and the results are satisfactory and in line with the actual situation of the company. The indicator system of this method is more objective and comprehensive and the evaluation process is more efficient, which provide new ideas for risk assessment of existing information security companies.
Research on Computing Resources Sharing of University Laboratories in Education Cloud Environment
Authors: Xiong Nian , Zhou Shan , Wu Zujian , He Zhenyu , Quan Yujuan
Published: January 2020

In view of the common problems of computing resources sharing existing in university laboratories, and combined with the advantages of cloud computing technology in the current education cloud environment, this paper explores the computing resources sharing in colleges and universities. The integration scheme of laboratory computing resources is designed, the sharing mode and operation management mechanism of computing resources are proposed, and the application domain model of computing resources is studied, which is helpful to promote the standardized development of resource sharing, and provides a reference for resource sharing implementation in the education industry.
Implementation and Application of APM Monitoring System under Big Data of Power Grid
Authors: Shen Yang , Qiao Lin , Liu Wei , Yang Chao
Published: January 2020

With the rapid development of smart grid application system and the increasing complexity of information system, the difficulty and importance of data center operation and maintenance management are increasingly prominent. In order to further analyze the existing data under the big data of power grid, improve work efficiency and service quality, a set of scientific and efficient application performance management (APM) monitoring system is proposed. Through the real-time monitoring of power system performance, the latest information about the operation of software and hardware system can be ensured. With the performance data of the system under a series of activities and loads, users can define a performance baseline to represent the acceptable performance under typical operating conditions. This baseline provides a reference point for locating problems more easily. Through scoring system, the health degree of information system operation can be displayed intuitively. Once the score drops, the system is in a non-health state, and the location of the performance bottleneck can be roughly determined by the secondary score. The dispatcher can quickly contact the relevant operation and maintenance team to solve the performance problems, greatly reducing the response time of the performance problems.
Implementation of SAR Echo Simulation Algorithm on Heterogeneous Embedded Computing Platform
Authors: Hou Xiaoyu , Quan Daying , Fan Wei , Jin Xiaoping , Liu Hengliang
Published: January 2020

The Synthetic Aperture Radar (SAR) echo simulation is to obtain the SAR original echo signal by performing reverse operation on the pre-set SAR image. The traditional platforms used to implement the simulation algorithms like central processing unit (CPU) + graphic processing unit (GPU) and digital signal processor (DSP) + field programmable gate array (FPGA) have disadvantages such as high power consumption or complicated programming. In order to make up for these shortcomings, the implementation structure of the SAR echo simulation algorithm was improved to be applicable on the heterogeneous embedded platform with the basic SAR simulation algorithms digitized and decomposed. Base on the improved structure, a mobile GPU based heterogeneous computing platform with one multiprocessor system-on-chip (MPSoC) and multiple GPUs was designed to implement SAR echo simulation algorithm. The platform can simultaneously utilize the real-time nature of register transfer level (RTL) design and the ease of programming on GPU. It can achieve relatively faster computing power at lower power consumption and has the characteristics of miniaturization and mobility.
A Carrier Frequency Offset Estimation for OFDM System via Local Searching Capon Algorithm
Authors: Chen Xi , Zhao Gaofeng , Ye Changbo
Published: January 2020

Orthogonal frequency division multiplexing (OFDM) technology is an important modulation technology in wireless communication. One of the main disadvantages of OFDM system is that it is very sensitive to carrier frequency deviation. Therefore, estimation of carrier frequency deviation is one of the key technologies of OFDM system. In this paper, the global search Capon algorithm is improved, and a local search Capon algorithm is proposed. Simulation results show that the algorithm has low complexity and high performance. In the local search, P spectral peaks are superimposed, which can effectively overcome the problem that the estimation performance of traditional Capon algorithm is seriously reduced due to the unapparent spectral peaks or the missing spectral peaks in the case of low SNR., and it has a good application prospect in power wireless OFDM communication system. Since contemporary information-retrieval systems rely heavily on the content of titles and abstracts to identify relevant articles in literature searches, great care should be taken in constructing both.
Measurement and Evaluation of Marine Intelligent Transportation PNT Data Based on BDS and DGNSS
Authors: Wang Xiang , Liu Jingxian , Liu Zhao , Yuan Zhi
Published: January 2020

This paper proposes the acquisition of PNT data based on Beidou navigation satellite system and the joint BDS/GPS joint pseudorange difference algorithm. This paper relies on the DGNSS infrastructure of the Dajishan lighthouse management station of the Donghai Navigation Safety Administration (DNSA) of the ministry of transport of china. BDS and DGNSS were measured and evaluated using static measurement and evaluation methods. The results show that in the scene with strong interference, the static positioning level error of BDS exceeds 20 meters, DGNSS, static positioning level error is less than 2 meters. Therefore, the DGNSS algorithm is used to acquire the PNT data method, which has the characteristics of availability, accuracy, reliability, continuity and robustness, and can be used in the marine intelligent transportation system.
Study on the Prediction of Driving Braking Behaviour Based on FPNN
Authors: Xiao Jinjian , Weng Yubo , Xie Yingna
Published: January 2020

The driving braking recognized and predicted was complicated. The driving braking samples of various braking actions were gained, by means of 3 setting of driving braking including braking of automobile in front, roadblocks cutting off in other lane were planed and simulated in the real road environment. Experimental data of driving actions including automobile velocity, braking velocity and sustained action time were acquired by the driving action collecting system. Taking advantage of fuzzy aggregation analysis, the driving braking action sample was unified for the fuzzy probabilistic neural network (FPNN). Under different action groups of braking action information selected from braking action samples, the FPNN network was constructed and trained. The analytical results show that the hit rate is 95.3 % when the training braking action data number is 46. Meanwhile, the results show that the relative fuzzy unified and FPNN is useful with sufficient driving braking action data. The driving FPNN are a valid way for prediction of driving action time.
Face Recognition Method Based on Probabilistic Neural Network Optimizing Two-Dimensional Subspace Analysis
Authors: Zhang Haiyan , Qiao Fenqi
Published: January 2020

If there is noise in the original image of face recognition, the efficiency of face recognition will be affected. In this paper, a face recognition method based on probabilistic neural network optimizing two-dimensional subspace analysis was proposed. Firstly, discrete wavelet variation was used to preprocess the image, and then two-dimensional linear discriminant analysis was used for feature extraction. Finally, the probabilistic neural network was used to complete the face classification. According to the results of experiments conducted on ORL and Fei general face database and the database collected independently, the recognition rate can also be as high as 98.9% when noise is added, and compared with several new identification methods, this method can achieve better identification performance.
Optimization of Waste Smoke Recovery Scheduling Strategy Based on Multi AGV
Authors: Sun Shunkai , Li Jie , Zhu Jiule , Chen Haitao , Xu Qi , Liu Jingjie , Cui Haobo , Li Guorui , Hu Wangdi
Published: January 2020

AGV is an important material handling equipment for flexible, lean and intelligent production of smart factory. Because of the high cost of AGV car and the congestion of vehicles in the system, this chapter studies the waste smoke recovery path planning and material handling task scheduling strategy of multi AGV system to improve the waste smoke recovery efficiency of AGV.
Influence of glass/carbon fiber stacking sequence on mechanical and three-body abrasive wear resistance of hybrid composites
Authors: Jesthi Dipak Kumar , Nayak Ramesh Kumar
Published: January 2020

Glass and carbon fiber reinforced polymer hybrid composites are the need of the hour to overcome the weakness of individual fibers. The mechanical and abrasive wear property of the hybrid composites needs to be evaluated to ascertain the feasibility in structural and tribological applications. In this article, hybrid composites of different stacking sequence such as [G3C2]S, [GCG2C]S and[G2C2G]S has been designed. The flexural strength and three body abrasive wear resistance of the hybrid composites were evaluated and compared among themselves. It is observed that the flexural strength and modulus of [GCG2C]S type hybrid composite was improved by 46.1% and 49.5% respectively as compared to plain glass fiber reinforced polymer composites. The specific wear rate was evaluated by three-body abrasive wear at different operating parameters and optimized the same through response surface methodology. Box–Behnken design of the experiment was adopted to design the experiments. The model has predicted the minimum specific wear rate for [GCG2C]S hybrid composite is18.8476 × 10–3 mm3 Nm−1 at applied load of 33.15 N and sliding distance of 1100 m. The model predicted results were compared with experimental one and found a good agreement between them. The worn surface of the composites was analyzed by scanning electron microscope to understand the wear mechanism.
Effect of FSP process parameters with air blowing on microstructure and hardness of NiAl Bronze alloy
Authors: El-Mahallawy Nahed , Majed Ahmad , Abdel Ghaffar Abdel Maboud Ahmad
Published: January 2020

The present work investigates the effect of friction stir processing on microstructure evolution—grain refining and phase transformation- and hardness of NiAl bronze alloy. NiAl bronze alloys have a wide range of industrial applications especially in the marine field. The technique is based on applying friction using a rotating tool causing heat generation and material mixing. The effect of process parameters, such as; rotation speed, traverse speed, forced convection were investigated in this research. At constant traverse speed, the effect or rotation speed was studied at 800, 1000, and 1200 rpm. At constant rotation speed, the effect of traverse speed was studied at 40, 64, and 93 mm min−1. Minimum grain size was achieved at FSP conditions 800 rpm/93 mm min−1. Highest average hardness value was achieved by FSP 1200/93. At constant rotation and traverse speeds, the application of forced convection using air blowing at a rate of 4.5 m3 min−1 was studied and it was found to reduce the grain size within the SZ and to increase the average hardness value.
Microstructural evolution and cyclic oxidation of Pt-Al-YSZ coating under thermal shock
Authors: Rabieifar Arman , Nategh Said , Afshar M.Reza , Najafi Hamidreza
Published: January 2020

In this research, the effect of thermal shock has been investigated on the microstructure and cyclic oxidation of Pt-Al-7%YSZ coating applied on Rene-80 superalloy. The microstructural evaluation and phase identification were performed by field emission scanning electron microscope (FE-SEM) and X-ray diffraction (XRD). The thermal shock test consisted of repeated cycles of rapid cooling between 900 °C and 400 °C. Prior to the thermal shock test, the specimen coated by Pt-electroplating, high-activity low-temperature (HALT) aluminizing and the thermal spray of YSZ ceramic layer. From surface towards the substrate; the coating consisted of 5 layers including: 7% YSZ, PtAl2 + β-(Ni,Pt)Al, β-(Ni,Pt)Al with fine precipitates rich in α-(Cr) and α-(W), precipitate-free β-NiAl, and inter-diffusion zone next to the specimen surface. After the thermal shock test, spallation and delamination have been observed in the YSZ layer. The Pt-Al layer was found in upper and lower parts of the coating with different Pt concentration. Also, the chemical composition of the Pt-Al layer demonstrated the removal of PtAl2 particles and β transformation to both γ and γ′ phases. Degradation of Pt-Al layer occurred by ratcheting the thermally grown oxide (TGO), rumpling, and cavitation. Comparison of weight changes showed that the thermal shock resistance is improved by Pt-Al-7% YSZ coating.
Post-critical buckling of truncated conical carbon nanotubes considering surface effects embedding in a nonlinear Winkler substrate using the Rayleigh-Ritz method
Authors: Malikan Mohammad , Eremeyev Victor A
Published: January 2020

This research predicts theoretically post-critical axial buckling behavior of truncated conical carbon nanotubes (CCNTs) with several boundary conditions by assuming a nonlinear Winkler matrix. The post-buckling of CCNTs has been studied based on the Euler–Bernoulli beam model, Hamilton’s principle, Lagrangian strains, and nonlocal strain gradient theory. Both stiffness-hardening and stiffness-softening properties of the nanostructure are considered by exerting the second stress-gradient and second strain-gradient in the stress and strain fields. Besides small-scale influences, the surface effect is also taken into consideration. The effect of the Winkler foundation is nonlinearly taken into account based on the Taylor expansion. A new admissible function is used in the Rayleigh-Ritz solution technique applicable for buckling and post-buckling of nanotubes and nanobeams. Numerical results and related discussions are compared and reported with those obtained by the literature. The significant results proved that the surface effect and the nonlinear term of the substrate affect the CCNT considerably.
First-principles study of Zn-doping effects on phase stability and magnetic anisotropy of Ni-Mn-Ga alloys
Authors: Janovec Jozef , Straka Ladislav , Sozinov Alexei , Heczko Oleg , Zelený Martin
Published: January 2020

The effect of Zn doping on Ni-Mn-Ga magnetic shape memory alloy was studied by the first-principles calculations using exact muffin-tin orbital method in combination with the coherent-potential approximation and projector augmented-wave method. Trends in martensitic transformation temperature T

M
and Curie temperature T

C
were predicted from calculated energy differences between austenite and nonmodulated martensite, ΔE
A−NM, and energy differences between paramagnetic and ferromagnetic state, ΔE
PM−FM. Doping upon the Ga-sublattice results in stabilization of martensitic phase which indicates the increase in T

M
. T

C
is affected only weakly or slightly decreases, because ΔE
PM−FM of martensite does not change significantly with doping. The substitution of Mn atoms by Zn causes the decrease in both T

M
and T

C
. Comparing to Cu-doped Ni-Mn-Ga alloys, we predict that doping with Zn results in smaller decrease in T

C
but also in smaller increase in T

M
. Moreover, Cu doping upon the Ga-sublattice strongly decreases the magnetic anisotropy energy of martensite, whereas such strong effect was not observed for Zn doping. Based on the calculations of Zn-doped Ni-Mn-Ga alloys we suggest that simultaneous doping with Zn and an element increasing T

C
can result in significant increase in both transformation temperatures without strong decrease of magnetic anisotropy.
Effects of cell aspect ratio and relative density on deformation response and failure of honeycomb core structure
Authors: Khan Muhammad Salman , Rahimian Koloor Seyed Saeid , Tamin Mohd Nasir
Published: January 2020

The extensive applications of honeycomb (HC) core in sandwich structures necessitates the influence of the cellular geometry and cell wall base material on the mechanical response to be quantified. In this respect, this paper establishes the mechanics of the deformation and the failure processes of the HC core under the out-of-plane compressive, tensile, and shear loading. The corresponding mechanical properties are determined and the mechanisms of failure of the HC core structure are identified. The influence of the relative density (ρ*/ρ

s
) and the cell aspect ratio (H/c) of the hexagonal HC core on the compressive deformation response, the out-of-plane properties and the characteristic dissipation energy density (DED) of the structure is established. Results show that the compressive strength increases exponentially from 1.5 to 10.6 MPa over the relative density range of 0.028 ≤ (ρ*/ρ

s
) ≤ 0.125. The out-of-plane shear modulus, G
13 and G
23 are 33.9 and 58.2 MPa, while the shear strength, τ
13 and τ
23 are 1.07 and 2.03 MPa, respectively. The HC core with a low aspect ratio (H/c < 2.64) failed due to the early debonding of the double-wall hexagonal cells, while at H/c ≥ 2.64, by elastic buckling of the cells. A phenomenological model is formulated to highlight the combined effects of both parameters on the compressive strength (σ

c
) of the HC cores, covering the range of 0.028 ≤ (ρ*/ρ

s
) ≤ 0.056 and 2.5 ≤ (H/c) ≤ 5.62. Furthermore, the characteristic dissipation energy density (DED) under the out-of-plane compression varies linearly within the range of 2.5 < (H/c) < 5.62 for the HC core with ρ*/ρ

s
= 0.056. The HC core with H/c = 3.96, but with twice higher ρ*/ρ

s
exhibits about twice larger DED. These resulting properties and failure mechanisms of the anisotropic paper-based HC core are useful for the validation of the predictive computational models.
Phased array ultrasonic testing of micro-flaws in additive manufactured titanium block
Authors: Wang Xiaohui , Li Wentao , Li Yang , Zhou Zhenggan , Zhang Junjie , Zhu Fengjin , Miao Zhen
Published: January 2020

While titanium components manufactured by additive manufacturing have been widely used in direct molding of complex components, their performance is strongly affected by existing internal flaws generated in the unique manufacturing process. Thus, how to efficiently and accurately characterize geometrical characteristics of internal flaws is critical for enhancing applications of additive manufactured titanium components. In the present work, an effective non-destructive method by using phased array ultrasonic testing is proposed to characterize sub-millimeter artificial deep bottom holes in additive manufactured TC18 titanium block. Specifically, a phased array ultrasonic testing platform integrated with total focusing method-based post-processing algorithm is established. Flat bottom holes with a diameter of 0.8 mm and a depth of 5.0 mm in 55 mm-sized cube titanium block are detected using both linear and annular array transducers. Experimental results show that pre-existing holes can be characterized by both linear and annular transducers, in despite of accompanied high acoustic attenuation. Furthermore, the annular phased array ultrasonic testing has higher detection accuracy and resolution than the linear phased array one, for its stronger capability of sound field focusing. More importantly, the annular phased array ultrasonic testing shows similar high testing accuracy in different relative orientations between forming orientation of the titanium component and sound wave propagation direction. These findings provide an effective strategy for the non-destructive ultrasonic testing of titanium components by additive manufacturing.
Batch to batch variation study for biodiesel production by hydrothermal carbon catalyst: preparation, characterization and its application
Authors: Memon Safia S , Memon Najma , Memon Shahabuddin , Lachgar Abdesaddek , Memon Abdullah
Published: January 2020

In the present study, the esterification of oleic acid with methanol was studied in batch to batch method over hydrothermal carbon catalyst (HTCC) from Ziziphus Mauritiana L.. The synthesized catalyst was characterized by FT-IR, XRD, XPS, SEM, and BET analysis. The surface area and acid density of prepared HTCC were found to be 15.97 m2 g−1 and 2.53 mmol g−1, respectively. Statistical analysis was performed by using ANOVA, mean, standard deviation and variance method. Statistically there is no significant difference among the means of the 4 variables at the 95% confidence level and the P-value of the F-test is equal to or greater than the 0.05. The maximum oleic acid conversions from methanol were obtained upto 91%. Furthermore, reusability and regeneration study were also carried out to assess to check catalytic performance. The study reveals that HTCC obtained from Ziziphus Mauritiana L. is an excellent catalyst and can be used for esterification of oleic acid to produce biodiesel.
Microwave assisted synthesis of zinc vanadate nanoparticles and photocatalytic application
Authors: Iqbal M , Fatima M , Javed T , Anam A , Nazir A , Kanwal Q , Shehzadi Z , Khan M I , Nisar J , Abbas M , Naz S
Published: January 2020

In recent years, the nanotechnology has gained much attention since the nanoparticles (NPs) have applications in every field of life. The hetero-structured are of special interest due to their higher photocatalytic activity. In present investigation, Zinc vanadate NPs were synthesized from vanadium and zinc salts by microwave assisted precipitation method. The Zinc vanadate NPs were characterized by x-ray Powder Diffraction (XRD), Energy-dispersive x-ray spectroscopy (EDX), Scanning electron microscope (SEM) and UV-visible techniques. The photocatalytic activity (PCA) was evaluated by degrading the methylene blue (MB) dye and process variables were optimized. The Zinc vanadate size was <100 nm and particles were in aggregates form. The MB dye degradation was performed at different conditions of process variables and it was observed that MB dye was significantly degraded using Zinc vanadate NPs under UV light irradiation. The reaction time, catalyst dose and dye initial concentration showed variable effect on dye degradation. Based on results, it can be concluded that the microwave irradiation is viable for the synthesis of Zinc vanadate NPs for photocatalytic activity. In view of promising efficiency of Zinc vanadate NPs, it can be used for the dye degradation and for the remediation of textile effluents.
The effect of precursor concentration and post-deposition annealing on the optical and micro-structural properties of SILAR deposited SnO2 films
Authors: Kumar Pawan , Rao Gowrish K
Published: January 2020

Uniform and well-adherent SnO2 thin films, with thickness ranging from 60 nm to 6 μm, were deposited on borosilicate glass substrate by Successive Ionic Layer Adsorption and Reaction (SILAR) technique. A micro-controlled SILAR unit was employed to precisely monitor the deposition conditions. The effect of precursor concentration and post-deposition annealing on the micro-structural and optical properties of SnO2 thin films were studied in detail. The films were found to possess tetragonal rutile structure. The crystallite size of the films increased with solution molarity. Microstructural properties were analyzed using Scherrer, Modified Scherrer, Williamsons-Hall and Size-Strain plot techniques. Different optical properties such as band gap, skin depth, extinction coefficient, Urbach energy etc were determined. The post-deposition annealing at a moderate temperature of 573 K was found to enhance the crystallite size of the films while the density of the defect energy states reduced.
Relation between solutions of the Schrödinger equation with transitioning resonance solutions of the gravitational three-body problem
Authors: Belbruno Edward
Published: January 2020

It is shown that a class of approximate resonance solutions in the three-body problem under the Newtonian gravitational force are equivalent to quantized solutions of a modified Schrödinger equation for a wide range of masses that transition between energy states. In the macroscopic scale, the resonance solutions are shown to transition from one resonance type to another through weak capture at one of the bodies, while in the Schrödinger equation, one obtains quantized wave solutions transitioning between different energies. The resonance transition dynamics provides a classical model of a particle moving between different energy states in the Schrödinger equation. This methodology provides a connection between celestial and quantum mechanics.
Dynamics of a parabolic-ODE competition system in heterogeneous environments
Authors: Lou Yuan , Salako Rachidi
Published: January 2020

This work is concerned with the large time behavior of the solutions of a parabolic-ODE hybrid system, modeling the competition of two populations which are identical except for their movement behaviors: one species moves by random dispersal while the other does not diffuse. We show that the non-diffusing population will always drive the diffusing one to extinction in environments with sinks. In contract, the non-diffusing and diffusing populations can coexist in environments without sinks.
Viral protein X unlocks the nuclear pore complex through a human Nup153-dependent pathway to promote nuclear translocation of the lentiviral genome
Authors: Singh Satya Prakash , Raja Sebastian , Mahalingam Sundarasamy
Published: January 2020

MAPK/ERK-2–mediated phosphorylation regulates HIV-2/SIV Vpx interaction with human Nup153, which is critical for altering the nuclear membrane assembly for efficient transport of the lentiviral genome into the nucleus of nondividing target cells.