bluuebunny/crossref_metadata_2025_split huggingface dataset:
Modelling and analysis on the mechanism of electromagnetic driven weft insertion
Authors: Zhou Z P , Zhang C , Zhang C J , Cui X Z 
Published: October 2019

Abstract
In view of the difficulty in improving the weaving efficiency of the projectile weaving machine based on the traditional technology principle, This research presents the electromagnetic-drive gripper weft insertion mechanism, change the existing mechanical pick principle of weft insertion, its goal is to achieve “zero transmission” friction-free high-speed weft insertion, omit complex mechanical transmission mechanism in picking shaft, and breakthrough the bottleneck of the weft insertion rate, wide fabric problem in principle. Based on the theoretical study of electromagnetic projection and electromagnetic levitation, the structural model and motion model of electromagnetic pick and electromagnetic weft are established by comparing the electromagnetic and permanent magnetic model schemes. In order to meet the requirement of electromagnetic levitation, the linear hall sensor is selected and its driving circuit is designed to obtain the real-time height value of the chip shuttle. Through the analysis of the coil response, the advantages and disadvantages of DC-DC regulation and PWM wave regulation are compared, and the high response hardware circuit of DC-DC regulation is designed. MATLAB simulation ensures the feasibility of PID regulation. The feasibility of the scheme was verified by Maxwell electromagnetic picking simulation and electromagnetic filling insertion simulation. The first phase of picking experiment and static filling insertion experiment were carried out. In order to ensure the stability, the double-row soft iron chip shuttle was used, and good experimental results were obtained, which proved the feasibility of electromagnetic suspension weft insertion scheme.
Modification of the surface layer of magnesium with 1050A aluminum alloy using electrospark deposition
Authors: Spadlo S , Depczyński W , Mlynarczyk P 
Published: October 2019

Abstract
This paper discusses the results of the preliminary investigations into the use of electrospark deposition (ESD) for the surface enrichment of magnesium with 1050A aluminum alloy. The experiments focused on the effects of the capacitor’s value on the surface layer microstructure. Four capacitances were considered. The modified material was analyzed at the macro and micro scales, using optical and electron scanning microscopy. The microhardness of the modified layer was also determined.
Effect of the length-diameter ratio on the initial fragment velocity of cylindrical casing
Authors: Gao Y G , Feng S S , Zhang B , Zhou T 
Published: October 2019

Abstract
The initial velocity of fragment from cylindrical casing, which detonates at one end along the central of the casing, is the key issue in the field of explosion technology and its protecting. Most of the formula available can predict the initial velocity or the velocity of fragments at middle part of the cylindrical casing with greater length-dimeter ratio (L/d>2). However, when the length-diameter ratio is less than two, the initial velocity of the cylindrical casing filled with explosives will have a big difference. In the present work, a numerical simulation model acknowledged by X-ray radiography experiments was used to determine the influence of the length-diameter ratio. The formula was built on top of the Gurney formula and made use of a correctional function to account for the effect of the length-dimeter ratio. The formula was further acknowledged with the established numerical simulation model. The results indicate that the calculation formula can accurately predict the initial fragment velocity with different length-diameter ratio (L/d⩽ 2).
Study on the protective properties of polyurethane foam for water-entry projectile
Authors: Ye Y Q , Shao Z Y , Wu S Y 
Published: October 2019

Abstract
When the projectile enters into the water at high velocity, the impact force will be huge, therefore, it is necessary to protect the projectile. In this paper, polyurethane foam is selected to study its protective properties for water-entry projectile. The water-entry test was designed to compare the numerical simulation results, in order to verify the feasibility and the validity of the model. In particular, the numerical simulation method was used to compare the motion and response characteristics of unprotected and protected projectile. The results demonstrated that the polyurethane foam has good protective properties and comparing the protective effect of different density polyurethane foam by numerical simulation methods, it can be seen that the better protection is achieved at a density of 0.17 g/cm3 and 0.40 g/cm3.
Preparation and characterization of catechol-functionalized chitosan thermosensitive hydrogels
Authors: Zhang D Y , Hu Z , Lu S T , Li S D , Yang Z M , Li P W 
Published: October 2019

Abstract
Catechol functionalization of chitosan was modified by EDC coupling reaction and then catechol-functionalized chitosan thermosensitive hydrogels were prepared by catechol-functionalization of chitosan with β-glycerophosphate disodium as a thermosensitizer. The hydrogels were then characterized by FTIR, 1H-NMR, SEM and rheology analysis. The results demonstrated that the thermosensitive hydrogels were prepared at 37°C within several minutes by mixing 2% catechol-functionalized chitosan with 30% β-glycerophosphate disodium at a ratio of 8:2, and these thermosensitive hydrogels with porous network structure were expected to be developed as biomedical materials with wide applications.
The addition of sorbitol and glycerol to improve the physicochemical and sensory characteristics of chocolate dodol
Authors: Nurhayati R , Herawati E R N , Putri A S , Adyana G P 
Published: October 2019

Abstract
Dodol is a traditional food from Indonesia which made from glutinous rice flour, coconut milk, and sugar. Chocolate dodol is one variant of dodol that use cocoa powder on its formulation. Dodol has a sweet taste and chewy texture, but its shelf life is very short, i.e., 4-5 days only. Therefore it needs an additional humectant, such as glycerol and sorbitol, to decrease the water activity (aw) of the product and increase its shelf life. This research aimed to determine the effect of glycerol and sorbitol addition to the physical, chemical and sensory characteristics of chocolate dodol. The addition of glycerol and sorbitol to the chocolate dodol formulation were 0%, 6%, 8%, and 10%. The addition of sorbitol and glycerol to chocolate dodol product decreased water activity, increased texture characteristic, and have no significant difference in sensory preferences. In the same concentration, the addition of glycerol has a lower aw than sorbitol. Panelists most preferred chocolate dodol with 6% sorbitol addition. It have aw 0, 74; L*-a*-b* value 25, 47; 3, 66 and 0, 73.
Milk production of imported Holstein cows over different environment
Authors: Prastowo S , Nugroho T , Mahfudhoh N , Putra F Y , Subiakti  , Ratriyanto A , Susilowati A , Sutarno  , Widyas N 
Published: October 2019

Abstract
Indonesia is importing genetically superior Friesian Holstein (FH) cows as breeding stocks for domestic dairy cattle population. The milk production of these imported cows, however, are very much affected by temporary environmental effect due to the habitat changes and transportation. This study aimed to observe the consistency of milk production of imported cows viewed from the repeatability estimates. In total, milk yield records on lactation one (L1), two (L2) and three (L3) of 70 imported FH cattle were obtained from Baturaden Dairy Cattle Breeding Centre. The repeatability values were estimated with intraclass correlation method utilizing information from three lactation periods. Milk yield decreased over lactation periods which were 6077.55±1239; 4821.79±888 and 4374.6±1012 kg for L1, L2, and L3 respectively. The repeatability of milk yield trait in this population was 0.41. It indicates 59% of the variation in milk yield is controlled by the unknown error term, including temporary environmental effects. Imported cows undergone extreme adaptation processes to be able to live optimally in a new environment which would modify their physiology. We suspect environmental changes and resource differences between tropical and subtropical climates triggers different trait expression as the explanation of the phenomenon.
Yield and anthocyanin content of M1 generation of black rice induced by gamma rays
Authors: Purwanto E , Nahdhiana Z , Yunindanova M B , Nandariyah  
Published: October 2019

Abstract
Black rice is rice that has a dark purple to blackish pigment and has high antioxidant properties. The gamma rays can induce mutation in plant. The purpose of this research was to understand the yield and anthocyanin of black rice with gamma ray irradiation using M1 generation from Bantul and Boyolali varieties. This experiment employed 0, 100, 200 and 300 Gy gamma ray irradiation. The effects of gamma rays on Boyolali variety differed from Bantul variety. Bantul variety was more sensitive to gamma rays irradiation than Boyolali variety. The application of gamma rays did not significantly change the flowering age Boyolali variety. However, on Bantul variety, gamma rays reduced flowering age. Application 100 Gy irradiation yielded early maturing plant on Bantul variety. This result revealed that the gamma ray had potential for decreasing the harvest age in black rice. The application of irradiation could enhance the size of grain of black rice indicated by higher weight of 1000 seed in Boyolali variety. Irradiation 100 Gy also boosted yield per plant in Boyolali variety. In Boyolali variety, gamma ray boosted the yield per plant by producing bigger seed rather than increased the number of productive tillers. The increase of the irradiation doses did not always correlate with the changes of plant phenotype. To conclude, application 100 Gy was the most effective dose to produce higher anthocyanin content compared to another doses.
Zeolite and manure treatment on the increase of N soil, N absorption and soybean production in alfisols
Authors: Triatmoko V , Alvernia P , Haniati I L , Minardi S , Suntoro W , Ariyanto D P 
Published: October 2019

Abstract
Soybean production in Indonesia could be improved by utilizing Alfisols as potential land. Zeolites and manure are used in this study as slow release materials to reduce nitrogen losses from soil. The aim of this research is reviewing the effect of zeolites and manure in improving N total contents, N absorption, and growth and production of soybean in Alfisols. Factorial randomized complete block designed of two factors (zeolite doses; 0 ton / ha, 2.5 ton / ha, and 5 ton / ha, and type of manure; P0: 0 ton / ha, P1: cow manure, P2: quail manure) were used and field experiments were conducted in this study. Obtained results showing zeolite with dose of 5 ton/ha gave the highest influence indicated by the increase of N total 35.13% and the increase of N absorption up to 53.37%. Cow manure gave the highest efficiency with total N increase of 40.54% and an increase in N absorption of 48.93%. Zeolite 5 ton/ha with cow manure gave the highest yield with an increase of total pod content 129.41%, and the increase of seed weight 35.39 %. Finally, zeolite treatment with cow manure at dose 5 ton/ha is the best treatment in this research.
Functionality of xanthan and almond gum in colloidal shellac nanoparticles containing cinnamon
Authors: Muhammad D R A , Gupta V , Doost A S , Dewettinck K 
Published: October 2019

Abstract
Instability of shellac nanoparticles at acidic pH is the main challenge of its use as an oral delivery system. This study aims to investigate the functionality of xanthan and almond gum in shellac nanoparticles containing cinnamon prepared by anti-solvent precipitation. The gums were added into the anti-solvent phase while the cinnamon extract was incorporated into the solvent phase. The results show that the minimum concentration of xanthan and almond gum to prevent shellac aggregation at simulated gastric pH (1.2) was 0.3% and 0.6%, respectively. Higher concentration of gums resulted in a bigger particle size and more negative ζ-potential, regardless the type of the gums. Cinnamon loading in the shellac-xanthan gum complex resulted in nanoscale sized particles, while the complex system consisted of shellac, almond gum 0.6% and cinnamon extract created a network entrapping the individual particle. In conclusion, xanthan gum incorporation was better than almond gum to stabilise shellac nanoparticle containing cinnamon in simulated gastric pH. This study confirms that shellac-xanthan gum complex can be potentially used for an oral delivery system of bioactive compounds.
Sensory, chemical, and nutritional characteristic of coffee-chocolate instant drink (chocomix-fee) from Nglanggeran, Gunungkidul, Yogyakarta
Authors: Herawati E R N , Nurhayati R , Angwar M 
Published: October 2019

Abstract
Cocoa (Theobroma cocoa) is one of the potential commodities in Indonesia. There are many cocoa fields in Yogyakarta, and one of cocoa field is Nglanggeran, Gunungkidul. Diversification product must be done to increase the economy value of local chocolate from Nglanggeran. The aim of this research is to determine sensory, chemical, and nutritional characteristic of Chocomix-Fee. ‘Chocomix-Fee” is instant drink made from chocolate powder and coffee powder. Chocomix-Fee made with four different coffee powder addition (22%, 20%, 18%, 16%). Sensory test results indicated that the most preferred product was Chocomix-Fee that made from 16% coffee powder addition. The selected Chocomix-Fee contain water content about 2.11%, ash content about 1.41%, fat content 6.83%, protein content about 7.29%, and carbohydrate content about 82.37%. Chocomix-Fee contain polyphenol about 49.55 mg GAE/g sample and antioxidant activity about 56.35%. Chocomix-fee is packaged using metallized package with a weight about 25 grams per sachet. The energy obtained by consuming chocomix-fee drinks is 105 kcal / 25 g product
Physical and hedonic properties of cow milk yogurt containing different levels of avocado pulp (Perseaamericana, Mill)
Authors: Atmanaji  , Hertanto B S , Pramono A 
Published: October 2019

Abstract
The research aimed to analyze physical and hedonic properties of cow milk yogurt containing different levels of avocado pulp (Perseaamericana, Mill) and determine the best level of avocado pulp on cow’s milk yogurt. The material used were fresh milk of Holstein Friesian crossbred dairy cow, avocado pulp and commercial starter plain yogurt. The research design used a completely randomized design (CRD) of direct pattern with five treatments includingP0 = 100 ml yogurt + 0% avocado pulp, P1 = 97.5 ml yogurt + 2.5% avocado pulp, P2 = 95 ml yogurt + 5.0% avocado pulp, P3 = 92.5 ml yogurt + 7.5% avocado pulp, and each treatment consisted of five replications. The data were analyzed by variance analysis, and difference treatment was continued with Duncan’s New Multiple Range Test (DMRT). The results showed that different levels of avocado pulp affected on viscosity adhesiveness and cohesiveness of yoghurt (P<0.05). However, the treatment did not affect hardness (P>0.05). Hedonic test showed that adding avocado pulp into yogurt did affect (P<0.05) color and flavor, and also taste of yogurt was high significanly effected (P<0.01). Overall, it can be seen that the different levels of avocado pulp in cow milk yogurt can increase physical properties of yogurt including viscosity and hedonic quality. The best level of avocado pulp added to cow milk yogurt was 7.5%.
Nutritional booklet and social media: Their effects on adolescents’ fattening-food knowledge and consumption
Authors: Firmansyah  , Tamtomo D G , Cilmiaty R 
Published: October 2019

Abstract
One cause of adolescents’ fat-consumption imbalance is inadequate knowledge of nutrition and socialization about good eating habits. Adolescents like searching for food information through social media like Facebook and Instagram before consuming. This study was to analyse the effect of nutrition booklet and social media on the adolescents’ fattening-food knowledge and consumptions. The sample of this quasi-experiment was 96 eleventh-grade Science students of SMAN 1, 3, and 5 Surakarta selected using probability proportional size sampling. This study was conducted in one month. Nutritional education intervention with social media and nutritional booklet was conducted six times in two weeks. The data were analysed using Wilcoxon, Kruskal Wallis, and Logistic Binary Regression with SPSS. Nutritional education with nutrition booklet influenced the fattening-food knowledge (p = 0.000) and consumption (p < 0.05). Nutritional education with social media influenced the fattening-food knowledge (p = 0.001) and consumption (p < 0.05). There were different scores of the fattening-food knowledge (p = 0.001) and consumption (p = 0.005) in the nutritional education group with nutritional booklet and social media. Nutritional booklet and social media influenced adolescents’ fattening-food knowledge and consumption. There were different fattening-food knowledge and consumption in the adolescents using nutritional booklet and social media.
Improvement in Machined Surface with the use of Powder and Magnetic Field Assisted on Machining Aluminium 6061 Alloy with EDM
Authors: Rouniyar Arun Kumar , Shandilya Pragya 
Published: October 2019

Abstract
Surface characteristics are the major challenges faced by the manufacturing industry when materials are machined with electrical discharge machining. Magnetic Field assisted powder mixed electrical discharge machining (MFAPM-EDM) is hybrid machining process which has shown the good potential of improving the surface characteristics. In this present paper, machining of aluminium 6061 alloy was carried out with aluminium powder mixed in EDM oil and in presence of magnetic field using EDM process Magnetic field, spark on duration, spark off duration, pulse current and powder concentration were selected as variable machining parameters and surface roughness as a response. Box-Behnken design approach based on response surface methodology was used for performing the experiments. In the present analysis, current was observed as the most significant parameter followed by spark on duration, powder concentration and magnetic field on surface roughness. Improvement in surface roughness with lesser voids and craters were observed under the influence of magnetic field and aluminium powder mixed in EDM oil.
Preparation of Carbon Encapsulated Magnetic FeCo Alloy Nanoparticles Supported on Carbon Nanotubes for Enhanced Microwave Absorption
Authors: Yuan Guanming , Su Yong , Cui Zhengwei , Dong Zhijun , Li Xuanke 
Published: October 2019

Abstract
A mixture of multi-walled carbon nanotubes in an ethanol solution of Fe(NO3)3.9H2O and Co(NO3)2.6H2O, were used to prepare an Fe2O3-CoO catalyst supported on carbon nanotubes by a supercritical fluid drying method. The carbon encapsulated FeCo nanoparticles were prepared by the catalytic decomposition of methane over the catalyst at 850°C for 30 mins. The morphology and microstructure of the catalyst and carbon encapsulated nanoparticles (CEP) were characterized by XRD, FESEM, EDS and TEM analyses. The electromagnetic characteristics and microwave absorption properties of the CEP product were also studied. Results show that the CEP product possesses high complex permittivity and good permeability in the microwave frequency range from 2 to 18 GHz. The maximum absorption peak was observed at 9.44 GHz for a large reflection loss (R) of 13.3 dB, with a band width of 7.4 GHz and 2.56 GHz, at R <- 5 dB and R <- 10 dB, respectively.
Scaling Behaviour, Optical and Photoluminescence Properties of La2Hf2O Films with Annealing Treatments
Authors: Li Z , Ma C Y , Zhang Q Y 
Published: October 2019

Abstract
The structure, optical and PL characteristics of La2Hf2O7 (LHO) films deposited by rf sputtering and subsequently annealed at 800-950°C are studied by x-ray diffraction (XRD), atomic force microscopy (AFM), UV/VIS spectrophotometry, and photoluminescence (PL) measurements. Structural studies indicate that LHO films with 37% atomic ratio of La/(La+Hf) have shown high crystallization temperature higher than 900°C. The scaling behaviors of AFM topographical profiles were analysed using one-dimensional power spectral density analysis (1DPSD). For as-grown films, only one growth exponent α is evidenced. For annealed films two different slopes α1 and α2 were observed, indicating distinct growth dynamic in LHO films. The estimated optical band gap was found to be in the range of 5.18-5.55 eV. Photoluminescence (PL) spectra of LHO films in visible light range (i.e., at 412~435 nm and 468 nm, respectively) can be attributed to localized states at the band tails and oxygen vacancies, respectively. This PL can be diminished or decreased by adjusting structural properties i.e. the amount of oxygen vacancies or some other kind of structure defects in the films by thermal annealing processing.
Grinding Deviation Analysis of Offset Face Gear Based on Involute Disc Wheel
Authors: Zhong Yang , Wang Jie , Zhang Tingyu , Pei Tianhe , Gao Yuan , Yao Wenhao 
Published: October 2019

Abstract
Offset face gear drive has shown many unique advantages in the area of crossed-axes transmission. In this paper, deviation analysis of an offset face gear using a involute disc wheel as a cutting tool has been discussed to achieve precised machining.Firstly, equations of involute disc wheel and offset face gear are derived based on meshing theory.Then, a grinding machine tool is designed and equations of offset face gear containing machining deviation are derived.At last,figures of deviation cloud of face gear surface are created with MATLAB and importance of different machining deviation is discussed.The results show that the deviation Az along the axis of grinding wheel is the most influential deviation,while Ay along the axis of face gear is the least one.
Performance Analysis of by-pass Excitation Cable Force Sensor
Authors: Yishu Zhou , Jinning Zhang , Chang Liu , Jinjin Cao 
Published: October 2019

Abstract
The sleeve cable force sensor based on magnetoelastic effect has developed rapidly in recent years, and has been widely used in the field of bridge cable force measurement in China. Existing sleeve cable force sensor needs to be installed at the beginning of construction, so it is difficult to reinstall them later, and its long-term performance is also difficult to evaluate and measure online. To solve this problem, the tension measurement of the designed by-pass excitation cable force sensor is carried out, and the influence of signal line length and ambient temperature on the measurement results is analyzed. The results show that the designed by-pass excitation cable force sensor has high linearity, which is expected to solve the problem of the existing sleeve cable force sensor.