bluuebunny/crossref_metadata_2025_split huggingface dataset:
Post-processing optimization algorithm for blade six-axis NC machining
Authors: Cui Chuanhui , Chen Shuai , Si Chuanrui , Ye Huan 
Published: February 2022

Abstract
In order to solve the problem of fluctuation in the six-axis NC polishing machining, in this paper, a post-processing optimization algorithm for six-axis NC polishing machining is proposed, which can solve the problem of fluctuation in the machining process of six-axis NC machining. First, the initial A-axis angle value corresponding to the tool position is solved according to the tool position information contained in the toolpath file; Second, use B-spline to smooth the data of A-axis, and solve the corresponding B-axis and C-axis angle value according to the angle value of A-axis; Third, calculate the moving value of X-axis Y-axis and Z-axis to realize the post-processing of the toolpath file; Finally, the algorithm is verified that it can solve the machine trajectory fluctuation in the current six-axis post-processing using VERICUT and the machining experiments, and realize the high quality six-axis NC polishing machining.
A review of fault diagnosis and fault-tolerant control of vehicular polymer electrolyte membrane fuel cell power system
Authors: Pan Tongyu , Zhang Pei , Du Changqing , Wu Dongmei 
Published: February 2022

Abstract
Proton exchange membrane fuel cell (PEMFC) is a promising vehicle power because of its high energy conversion efficiency and pollution-free reactant. However, the complex structure of multi-system coordination makes the correlation between parameters strong, the fault rate is high and the control is difficult. Timely and accurate fault diagnosis and effective fault-tolerant control are of great significance to the stable output and durability of PEMFC system. Firstly, this paper classifies different faults and describes the applicable scenarios of each classification method. Then, the fault diagnosis methods based on experiment, model and data are summarized, and their advantages and disadvantages are compared. Then, the methods and characteristics of hardware fault tolerance and software fault tolerance are analyzed from the point of redundancy, and the application of fault tolerance control in maintaining the stability of PEMFC system is summarized. Finally, the improvement direction and development prospect of fault diagnosis related technology of vehicle PEMFC system are proposed.
Development of state identification system for whole process of tensile fracture of steel bar based on magnetic field measurement
Authors: Cao Yejun 
Published: February 2022

Abstract
The large and small difficulties during the trial, a lot of places repeated the experiment many times, in order to avoid has omission cause the whole experimental process experiments to be carried out again. The experimental project has a large amount of data, so it is a test of the patience of team members in data processing. When the researchers process the data, you need to import the origin of many data, to draw out the change of the magnetic field intensity and the magnetic field gradient image, and the process we have a good command of origin usage skills, understand how vital it is to process data correctly at the same time, care and patience for scientific research employees are essential. This issue necessitates a greater understanding of mathematics, physics, and chemistry, which is made more difficult by the fact that the process of understanding the principle necessitates the use of these skills. The test results show that there is a good corresponding relationship between the magnetic induction intensity and the stress state of the steel bar. The normal residual magnetic induction intensity and the hysteresis loop area of the steel bar under the action of fatigue load show the three-stage change law of fatigue, which can be further applied to the steel bar. The state of stress is being tested.
Study on Rotating Speed Control of Dissimilar Metal Friction Stir Welding based on Fuzzy PID
Authors: Liu Yongning , Qiao Zhifeng , Liu Qingjian , Huang Jiahao , Fu Kang 
Published: February 2022

Abstract
The demand for lightweight vehicles that achieve energy conservation and emission reduction continues to grow. Aluminum alloys were commonly applied to the automotive industry to reduce the structural quality of the entire vehicle. However, the cost of aluminum alloy was higher than that of steel, so the industry considered the use of aluminum in combination with low-cost materials such as steel. Traditional welding technology was limited by the great physical difference between aluminum alloy and steel. Friction Stir Welding, a solid phase welding technology, can overcome the connection problem of aluminum and its alloys with steel, but the process parameters of FSW directly affect the welding quality. This paper established the FSW process of two different metals of DC05 and AL6061. Aimed to get a good welding joint, the error of tool speed is reduced by fuzzy PID system established in this paper, and the tool speed is controlled stably. Simulink simulation was established, and compared with the simulation results, fuzzy PID control can control the precision and stability of the tool speed of FSW, improve the welding quality, and provide a certain theoretical basis for the tool speed control.
Effects of UIT on Microstructure and Properties of 441 Ferritic Stainless Steel Laser Welded Joint
Authors: Zhao Caiyu , Fan Qiuyue , Yu Haoxuan , Wang Hao , Xu Desheng 
Published: February 2022

Abstract
Effects of UIT (Ultrasonic impact treatment) on the microstructure and properties of laser welded 1.5mm 441 ferritic stainless steel sheets were studied. Results indicate that the surface of the butt joint generated an ultrasonically induced strengthening layer after UIT. The average microhardness of the layer was increased by 18.1%. The tensile strength of the specimens was increased. Moreover, UIT can decrease the residual stress of welded specimens, the maximum longitudinal tensile stress in the central area was decreased by 78.4%, and the transverse residual stress was converted into compressive stress. The cupping value was increased from 34.5 mm to 37.0 mm following UIT. In addition, the fracture position was changed from the central weld to the edge weld of the cupping hemisphere. The mechanical properties were increased due to the generation of strengthening layers and the decrease of residual stress by UIT.
Design and study of microfluidic differential phase surface plasmon resonance sensor
Authors: Liu TianHang , Li SiMin , Deng JunPeng , Wang GuoFu , Liu YanSheng 
Published: February 2022

Abstract
In this project we design and study a differential phase surface plasmon resonance sensor combining with microfluidic technology. The differential phase Surface Plasmon Resonance (SPR) sensor is constructed by applying the Kretschman plasmon excitation structure and combing with interference spectroscopy. Through making use of simulation and experimental method, the principle of SPR sensor is theoretically and experimentally studied. In this project, we apply the SPR sensor in testing urea solution with varying weight concentration. Through the results, it can be observed that the plasma resonance absorption ranges from 640 nm to 840 nm and its detection limits can reach 0.0004 RIU. Due to its tunable plasma absorption and lower detection limits, the microfluidic differential phase surface plasmon resonance sensor illustrates a promising future in chemistry, physics and biology.
Monitoring Fuel Dilution of Diesel Engine Lubricant Oil by Ultraviolet Fluorescence Spectroscopy
Authors: Li Jing , Tian Hongxiang , Yunling Sun , Huang Heng , He Wei 
Published: February 2022

Abstract
Fuel contamination is a common problem in lubricating oil contamination. Generally, methods such as gas chromatography can be used, but the experimental process is more complicated. Fluorescence spectroscopy analysis has the advantages of fast detection speed and high sensitivity. Applying it to fuel dilution analysis can simplify the analysis process and enable rapid and accurate quantitative analysis. A certain type of fluorescence spectrophotometer was used to analyze and monitor lubricating oil containing different proportions of diesel oil. The fluorescence sensitive band was found, and the corresponding relationship between different lubricating oil content and the height and peak area of the fluorescence characteristic peak was analyzed.
Inversion of elastic constants of composite materials by single test based on virtual fields method
Authors: Zhu Rongxin , Jiang Hao , Liu Yan , Lei Zhenkun , Bai Ruixiang 
Published: February 2022

Abstract
In this paper, a method of obtaining four elastic constants of orthotropic composites by single tensile test is proposed. The principle of this method is to obtain the full field strain on the surface of the specimen through the tensile test of the specimen with a specific geometry, and to invert the measured in-plane strain field into the virtual fields method (VFM) to obtain the elastic constants. Based on the deformation field data generated by finite element numerical simulation, the effects of design parameters such as effective length, notch position, notch size and fillet radius on the identification results of elastic parameters of V-notch tensile specimen are studied. The results show that the inversion results of symmetrical V-notch specimen with 50 mm length, 12 mm notch size and 3.1 mm fillet radius are the best, and the sum of absolute relative errors of four elastic constants is less than 3%, which verifies the feasibility of the method.
Readout electronics and data acquisition system of PandaX-4T experiment
Authors: Yang J. , Chen X. , He C. , Huang D. , Huang Y. , Liu J. , Ren X. , Wang A. , Wang M. , Yan B. , Yin K. , Yang J. , Yang Y. , Zheng Q. 
Published: February 2022

Abstract
PandaX-4T is a dark matter direct detection experiment
located in China jinping underground laboratory. The central
apparatus is a dual-phase xenon detector containing 4 ton liquid
xenon in the sensitive volume, with about 500 photomultipliers
instrumented in the top and the bottom of the detector. In this
paper we present a completely new system of readout electronics and
data acquisition in the PandaX-4T experiment. Compared to the one
used in the previous PandaX dark matter experiments, the new system
features triggerless readout and higher bandwidth. With triggerless
readout, dark matter searches are not affected by the efficiency
loss of external triggers. The system records single photelectron
signals of the dominant PMTs with an average efficiency of 96%, and
achieves the bandwidth of more than 450 MB/s. The system has been
used to successfully acquire data during the commissioning runs of
PandaX-4T.
Assembly of skin substitute by cross-linking natural biomaterials on synthetic biodegradable porous mat for critical-size full-thickness burn wound regeneration
Authors: Ramakrishnan Rashmi , Venkiteswaran KalliyanaKrishnan , Sreelatha Harikrishnan Vijayakumar , Lekshman Aishwarya , Arumugham Sabareeswaran , KalliyanaKrishnan Lissy 
Published: February 2022

Abstract
Human skin architecture comprises several interpenetrating macromolecules seen as organized extracellular matrix (ECM). For regeneration of critical-size acute and chronic wounds, substituting the damaged tissue with artificially assembled biomolecules offer an interactive milieu. This study reports development and preclinical evaluation of a biodegradable and immuno-compatible scaffold for regeneration of critical-size (4 × 4 cm2) full-thickness rabbit burn wounds. The designed wound care product comprises synthetic terpolymer poly(L-Lactide-co-Glycolide-co-Caprolactone) (PLGC), human clinical-grade fibrin (FIB), and hyaluronic acid (HA), termed as PLGCFIBHA. Here, clotting of fibrinogen concentrate (FC) with excess thrombin in the scaffold create an interpenetrating FIB network harnessed with adhesive molecules like fibronectin and laminin present in FC with exogenous HA to produce ECM-like milieu on porous PLGC. Penetrating into porous PLGCFIBHA, long term study showed a regulated fibroblast growth resulting in non-fibrotic dermal-like tissue in vitro. The freeze-dried PLGCFIBHA with residual thrombin facilitated suture-less, hemostatic matrix adhesion to the wound bed in vivo. By 28 d, mature and scar-less epidermis-dermis formation with skin appendages was evident in the PLGCFIBHA-treated wound area. Both negative (untreated/sham) and positive (commercial matrix-treated) control wounds showed incomplete regeneration. The PLGCFIBHA-treated wounds were comparable to native skin by 56 d. These regenerative outcomes upon single application of PLGCFIBHA confirms its potential translational value for wound care.
Potential of tamarind seeds (Tamarindus indica L.) as prebiotics on the growth of lactic acid bacteria
Authors: Utami M. M. D. , Dewi A. C. , Ningsih N. 
Published: February 2022

Abstract
The purpose of this study was to examine the potential of tamarind seeds as a prebiotic by conducting tamarind seeds with a temperature and incubation time. Prebiotic testing was carried out using Lactobacillus casei grown on media with the addition of tamarind seeds. The research used a completely randomized design. The temperature was divided into two levels (60 and 70°C) and the incubation time is divided into three levels (120, 180, and 240 minutes). The treatments were T1 (control), T2 (60°C, 120 minutes), T3 (60°C, 180 minutes), T4 (60°C, 240 minutes), T5 (70°C 120 minutes), T6 (70°C, 180 minutes), and T7 (70°C, 240 minutes). Each experiment was repeated twice. Data were analyzed by analysis of variance, if there was a significant effect then continued with Duncan test. Based on the results of this study: tamarind seeds which were incubated at a temperature of 60°C for 240 minutes increased the number of colonies significantly (P<0.05) compared to the incubation time below, incubation tamarind seeds at 70°C increased the number of bacterial colonies significantly (P<0.05) in all-time ranges, however the optimal time 180 minutes. Tamarind seeds have potential as prebiotics, all the parameters showed the ability of tamarind seeds as a prebiotic.
Bio-emulsifier supplementation from Pseudomonas putida that cultivated on medium containing waste palm oil as feed additive on poultry
Authors: Nurhamzah M , Pantaya D 
Published: February 2022

Abstract
The purpose of this study to determine effect of bio-emulsifier from Pseudomonas putida as feed supplement on the performance of broiler chickens. The experiment was divided in two phases. In phase 1: test of oil bubbles formation in water using bio-emulsifier, and phase 2 : in vivo test bio-emulsifier in animal. 200 one-day-old male and female broiler strain Cobb were used. On d 14, chicks were separated by sex and placed in 40 pens, sex separate (100 males or 100 females) and randomly assigned 4 treatments and 5 replicates of 5 birds each for 14 d (21d-35 d). The diets were based of corn, concentrate and rice bran meal and supplemented with: 0, 0.5,1 and 1.5 g/kg bio-emulsifier. The observed parameters were feed intake (FI), average daily gain (ADG), and feed conversion ratio (FCR). Result of experiment 1: as expected, supplementation of bio-emulsifier was increased small oil bubbles formation in medium oil in water, whereas in experiment 2 showed FI, ADG and FCR unaffected by dietary supplementation with bio-emulsifier on broiler at finisher phase (week 4 and 5) (P>0.05) and did not decrease on broiler performance. The results give new information that bio-emulsifier from Pseudomonas putida could potentially as a new alternative feed additive in the future on broiler performance.
Fermentation of soybean meal-hydrolysates as the medium that treated by papain enzyme with Saccharomyces cerevisiae for biomass production
Authors: Pantaya D. , Pamungkas D. , Wulandari S. , Utami M. M. D. 
Published: February 2022

Abstract
The purpose of this study was to determine the effect of soybean meal (SBM) media processing using the papain enzyme on the amino acid content and its effect on yeast biomass production. The study was divided into 2 experimental phases, first test: effect of papain enzyme hydrolysis test on amino acid in soybean meal that treated by boiling and non-boiling medium, second test: yeast biomass production was cultivated using soybean meal hydrolysates as medium with 3 treatments, namely control (- soybean meal), with soybean meal (-enzyme) and soybean meal (+enzyme). Data were analyzed using a completely randomized design with ANOVA and post hoc analysis using Tukey’s multiple range test. From the analysis, it was found that the addition of papain enzymes supplemented on soybean meal medium was affected on crude protein and amino acids composition (L-Arginine, L-proline, L-methionine, and L-phenylalanine). Enzyme treatment on SBM as substrate was increased the yeast biomass compared to control (P<0.01). In conclusion, enzyme treatment on soybean meal was improved the fermentation performance of yeast biomass production
The effect of extorted wet edamame pod liquid waste in chicks performance
Authors: Andriani M , Muhamad N , Sabran  , Syahniar TM , Ratri PR 
Published: February 2022

Abstract
This study aimed to determine the effect of liquid waste from extorted wet edamame pod (LEP) as a natural feed additive added to drinking water in chicks during rearing in a tropical environment. The study was designed using a completely randomized design (CRD) with 3 levels of LEP and 1 control treatment. Each level treatment replicated 4 times with 10 chickens for each experimental unit. The treatment levels were L0=control (using commercial additive based on the product dosage); L1=2.5% v/v LEP; L2 = 5%v/v LEP; and L3=7.5% v/v LEP as additive that added to drinking water. The variables observed broiler performance in the first week starter period which included water intake and feed intake, body weight gain and FCR. The statistical analysis used analysis of variance (ANOVA) then followed by Duncan’s Multiple Range Test (DMRT) when showed significant result. The results presented that the usage of 2.5% v/v LEP increased water intake but presented similar effect on feed intake and the performance of first week broiler maintenance in the tropical environment. In conclusion, the usage of LEP up to 7.5% in broiler drinking water is safe to apply as a natural feed additive without reducing broiler performance.
The effect of phytobiotics ginger (Zingiber officinale Rosc.) extract in drinking water on hematological characters of KUB chickens
Authors: Ningsih N. , Syaikhullah Gayuh , Adhyatma M. , Rofiqi Zainur , Al Huzaini M. F. 
Published: February 2022

Abstract
This study was carried out to investigate the effect of phytobiotics ginger (Zingiber officinale Rosc.) in drinking water on haematological characters of Kampung Unggul Balitbangtan (KUB) chickens. A total of one hundred KUB chickens fourteen days old were assigned into 4 treatments with 5 replicates (5 birds in each replicate). The experimental treatments were control without red ginger extract (T0), drinking water with 0.5% ginger extract (T1), 1.0 % ginger extract (T2), and 1.5 % ginger extract (T3). The basal diet was yellow corn, BR2 poultry concentrate produced by PT Wonokoyo, rice brand, and vitamin premix, which contains 17.07% CP, 3097.79 kcal/kg ME, 0.81% Ca, and 0.56% Pav. Variables evaluated were haematological character of KUB chicken. The results were analyzed using ANOVA in a completely randomized design using Statistical Package for Social Science or SPSS. Duncan multiple range test (DMRT) were used to separate mean of data when p-value differ significantly (P<0,05). Results showed that suplementation ginger extract in the drinking water did not significantly effect haematological character of KUB chicken..
Effect of drying method on the chemical properties of local soy flour
Authors: Suryana A L , Rosiana N M , Olivia Z 
Published: February 2022

Abstract
Soybean is a good source of protein because the nutrition value of soybean protein is equivalent to animal protein. Soy foods have been generally proven to prevent chronic disease, such as antiobesity, antihypertensive, immunity regulation, cholesterol-lowering, lipid-lowering, anticarcinogenic and antioxidant. Moreover, soy food also decreases the prevalence of stunting in toddlers. Soybean in the form of flour can make it easier to process into food, but soy has a bad smell that they don’t like. This aroma can be reduced by heating treatment such as the drying method. So this study aimed to determine the effect of the drying method on the chemical content of soybean flour. Four methods to dry the soybean are sun drying, oven drying at 50°C, oven drying at 70°C hours, and oven drying at 100°C. After drying, the soybeans are roasted for 2 minutes with medium heat. The result shows the drying method affects the moisture, protein, fat, ash, and carbohydrate of soybean flour. Oven drying at 50°C for 3 hours is recommended to use as the best method to produce soy flour due to its nutritional value and has better aroma, sweet taste, light color, and good nutritional value.
Fatty acids and amino acids profile of organic black rice (Oryza sativa L.) milk
Authors: Romulo A , Sadek N F 
Published: February 2022

Abstract
The popularity of plant-based milk has been increasing over the last few years to substitute animal milk. Cereal such as black rice (Oryza sativa L.) is a plant material that can be used to produce rice milk. Black rice has been reported to have high vitamin and mineral content and high fiber. Previous research also has shown the functionality of black rice, such as antioxidant, antihypertensive, and antihyperlipidemic. For this reason, black rice has the potency to be further processed into functional food such as rice milk. However, there is still a lack of basic information about the nutritional profile of black rice milk. Therefore, this research aimed to examine the fatty acids and amino acids profile of black rice milk. Fatty acid analysis was carried out using GC-FID. Amino acid content was analyzed using UPLC. The fatty acid profile analysis revealed that polyunsaturated fatty acid was the most abundant (0.1062%) in black rice milk, followed by saturated fatty acid (0.062%). The highest amino acid found in black rice milk was glutamic acid (0.0045 g/100 mL), aspartic acid (0.00269 g/100 mL), and arginine (0.0228 g/100 mL)
Organoleptic Characteristics of Banana Flakes Based on Maturity Level of Banana (Musa Paradisiaca) CV. Ambon
Authors: Surahman D N , Ekafitri R , Rahman T , Cahyadi W , Setyadi D A , Astro H M , Indriati A , Andriana Y , Anggara C E W 
Published: February 2022

Abstract
Bananas are rich in minerals such as potassium, magnesium, iron, phosphorus, and calcium, contain vitamins A, B6 and C and contain serotonin which is active as a neurotransmitter for intelligence. Bananas can be processed into semi-finished products or finished products. One of the semi-finished products from bananas is Banana Flour. Banana flour is an alternative to banana preservation because bananas are perishable fruits. Banana flour can be made from unripe bananas and ripe bananas. The types of breakfast cereals that are most consumed or preferred by consumers are products in the form of breakfast drinks, extruded products and flakes. Flakes belong to the cereal milk food group. The purpose of this study was to determine the organoleptic characteristics of banana flakes made from banana flour with different ripeness levels of bananas. The research methodology included organoleptic test with the hedonic test method on a scale of 1-7, with a total of 30 panelists. The test parameters carried out include color, taste, aroma, hardness, crunchiness and overall acceptance. The results showed that the sample a1b3 (ripe banana flour, 25 minutes of roasting) was the most preferred by the panelists, with test values for color 5.40, taste 5.90, aroma, 5.63, hardness 5.50, crispness 5.67, overall admission of 6.07.