Kind Of Processing Method Research Articles

Characteristics of 2D Ultrasonic Vibration Incremental Forming of a 1060 Aluminum Alloy Sheet.

Currently, 1060 aluminum alloy is widely applied in the electronics industry, construction, the aerospace field, traffic engineering, decorations, and the consumer goods market for its good chemical, physical, and mechanical properties. In general, excellent processing property is necessary and important for the manufacturing of complicated panels. In this paper, a special 2D ultrasonic vibration incremental forming method is designed to improve its plasticity and mechanical properties. Three kind of processing methods, including traditional single-point incremental forming, longitudinal ultrasonic vibration incremental forming, and 2D ultrasonic vibration incremental forming, are used for the flexible manufacturing of cones and cylindrical cups of 1060 aluminum alloy sheet. Then, micro-hardness tests, residual stress tests, and scanning electron microscopy tests are carried out to probe the changes in micro-structure and mechanical properties and to analyze the effects of different types of ultrasonic vibration on the plasticity and fracture characteristic of 1060 aluminum alloy. It is proven that 2D ultrasonic vibration facilitates the improvement of plasticity and surface qualities of 1060 aluminum alloy better than the other two processing methods. Therefore, the novel 2D ultrasonic vibration incremental forming process possesses substantial application value for the flexible and rapid manufacturing of complicated thin-walled component of aluminum alloy.

Spectroscopic techniques for authentication of animal origin foods.

Milk and milk products, meat, fish and poultry as well as other animal derived foods occupy a pronounced position in human nutrition. Unfortunately, fraud in the food industry is common, resulting in negative economic consequences for customers as well as significant threats to human health and the external environment. As a result, it is critical to develop analytical tools that can quickly detect fraud and validate the authenticity of such products. Authentication of a food product is the process of ensuring that the product matches the assertions on the label and complies with rules. Conventionally, various comprehensive and targeted approaches like molecular, chemical, protein based, and chromatographic techniques are being utilized for identifying the species, origin, peculiar ingredients and the kind of processing method used to produce the particular product. Despite being very accurate and unimpeachable, these techniques ruin the structure of food, are labor intensive, complicated, and can be employed on laboratory scale. Hence the need of hour is to identify alternative, modern instrumentation techniques which can help in overcoming the majority of the limitations offered by traditional methods. Spectroscopy is a quick, low cost, rapid, non-destructive, and emerging approach for verifying authenticity of animal origin foods. In this review authors will envisage the latest spectroscopic techniques being used for detection of fraud or adulteration in meat, fish, poultry, egg, and dairy products. Latest literature pertaining to emerging techniques including their advantages and limitations in comparison to different other commonly used analytical tools will be comprehensively reviewed. Challenges and future prospects of evolving advanced spectroscopic techniques will also be descanted.

Processing evolution,chemical components and pharmacological effects of Bufonis Venenum

Bufonis Venenum,the dried secretion of Bufo bufo gargarizans or B. melanostictus,is toxic and hard with the efficacy of removing toxicity for detumescence and relieving pain. The processing of Bufonis Venenum dates back to the Song dynasty. In addition to the wine-processing,milk-processing and talcum powder-processing,there were some other kinds of processing methods in ancient times,such as baking,calcining,water-soaking and vinegar-processing. Modern studies have shown that the Bufonis Venenum has the main chemical components of bufadienolides,indole alkaloids sterols,and other compounds. It has the pharmacological effects of antitumor,cardiac,antibacterial,and analgesic activities,local anesthesia,and so on. This paper reviews the processing evolution,chemical components and pharmacological effects of Bufonis Venenum,providing references for its special processing and modern research as well as the theoretical basis for the research on its processing mechanism and quality control.

Effects of high-pressure homogenization and ultrasonic treatment on the structure and characteristics of casein

To provide a basis for the reasonable choice of new non-thermal processing techniques in milk processing, especially high-pressure homogenization and ultrasound. In this paper, we investigated the structural changes of the casein that was treated independently by the above two technologies, using multiple spectroscopic techniques. Furthermore, the casein's functional characteristics were detected such as solubility, foaming, emulsifying, finally comparing the discrepancies in protein allergenicity. Research consequences are as follow: the secondary and tertiary structure of high-pressure homogenized casein changed; more hydrophilic amino acid residues were exposed, the surface hydrophobicity became worse, while the solubility remarkably ameliorated. In contrast, the content of anti-parallel structure of ultrasonic casein grew, the stability was relatively improved; more non-polar groups and hydrophobic side chains appeared leading to hydrophobic interaction reinforced. No matter what kind of processing methods, it can improve foaming and emulsifying properties to a certain degree. It is worth mentioning that the allergenicity of casein was crippled.

Enhancement of interface strength of carbon fiber/epoxy resin composites filled with low-dimensional materials

ABSTRACT Low-dimensional materials could improve the interface strength between the epoxy resin and carbon fibers (CFs) in the composites. Four type of low-dimensional powders were employed to functionalize the CFs/epoxy interface, and their reinforcement efficiency were compared by performing CF bundle pull out test. Two kinds of processing methods were adopted to introduce low-dimensional powders, one is coating powders onto the CF surfaces, and the other is adding powders in epoxy resin. It is shown that adding these nano-fillers into the matrix and coating them onto the CF surface resulted in a marked improvement in the interface adhesion. Moreover, the cohesive finite element method was employed to unveil the effect of some uncertain parameters on the measured results.

A method for constructing rolling bearing lifetime health indicator based on multi-scale convolutional neural networks

The degradation of rolling bearings is complex, and traditional methods of degenerating feature degradation are highly dependent on previous research and expertise. However, the traditional methods’ ability for learning the complex relationship between degraded features and large amounts of measured data is limited. So, it is difficult to construct a single health indicator (HI) to predict the degradation state of the bearing. In order to solve this problem, a multi-scale convolutional neural network (MSCNN) is proposed, which uses the frequency signal as input to construct HI. In combination with the “bathtub curve,” the HI we proposed is constructed by the inverse hyperbolic tangent function (atanh) method which is different from the proportional HI construction method. Five kinds of processing methods, such as original vibration signal, frequency signal and three kinds of modal decomposition preprocessed signals, are tested with PHM 2012 bearing lifetime data. And the proposed method is compared with other three HI construction methods. The experimental results show that under the HI construction method of atanh, the MSCNN model with the input of frequency signal can better represent the degradation state of the bearing compared with other methods. Meanwhile, the remaining life prediction is more accurate compared.

Fault Diagnosis of Active Magnetic Bearing⁻Rotor System via Vibration Images.

As important sources in fault diagnosis of rotary machinery, vibration signals are usually processed in the time or frequency domain as features to distinguish different classes of faults. However, these kinds of processing methods always ignore the corresponding relations among multiple signals, resulting in information loss. In this paper, a new fault description strategy named vibration image is proposed, based on which three new kinds of features are extracted, containing coupling information between different channels of vibration signals. Additionally, a new feature fusion method called two-layer AdaBoost is designed to train the fault recognition model, which avoids overfitting when the dataset is not large enough. Features based on vibration images combined with two-layer AdaBoost are adopted to diagnose faults of rotary machinery. Taking an active magnetic bearing-rotor system as the experimental platform, a dataset with four classes of faults is collected and our algorithm achieves good performance. Meanwhile, features based on vibration images and two-layer AdaBoost are both proved to be efficient separately.

Traditional nasal therapy in Uighur medicine

Nasal therapy, extensively documented in the ancient Uighur medical literature, is one of the external therapies of Uighur medicine. Based on the relevant records of 14 Uighur medical works, the application, classification, clinical features, and medications characteristics of nasal therapy were preliminarily sorted out. The results show that the nasal therapy can be divided into 7 categories, covering more than 200 kinds of common medicinal herbs, 8 kinds of processing methods and 10 kinds of preparations. Clinically, there is a large number of nasal therapy prescriptions, with flexible administration of prescriptions and medications, significant features of comprehensive therapy, with significance of application for further development.

Demonstration of Dual-Channel TOPS SAR Imaging With Airborne C-Band Data

Multichannel in azimuth synthetic aperture radar (SAR) operating in the terrain observation by progressive scans (TOPS) acquisition mode has attracted much attention recently for its capability to achieve ultrawide-swath imaging with a high spatial resolution. In order to verify the feasibility and operability of this newly developed remote sensing concept, a C-band airborne azimuth dual-channel TOPS SAR has been designed by the Institute of Electronics, Chinese Academy of Sciences, as a test bed for future spaceborne realizations. This paper introduces the experimental SAR system and reports the data processing results of an outfield experiment conducted in late September 2014. The importance of the experiment resides in its potential to validate several important technical aspects of this novel SAR operation with real experimental data, including channel mismatch cancellation and unambiguous signal reconstruction. Besides, two kinds of processing methods are proposed to calibrate the influence of antenna phase center fluctuation occurred in the dual-channel TOPS SAR. Finally, the experimental results obtained, including the phase mismatch cancellation and the focused imageries, are presented and analyzed.

Micro Surface Texturing of Alumina Ceramic with Nanosecond Laser

In order to fabricate micro surface textures on alumina ceramic, the effects of single pulse intervals processing and ring cutting processing on the laser surface textures were discussed. The advantages and disadvantages between the two kinds of processing method were compared. The crater diameter and depth increase with the increase of laser pulse energy, and the increasing number of pulses significantly affects the crater depth for the single pulse intervals processing. As for the ring cutting processing method, micro-pit depth changes with the average power, whereas the micro-pit diameter mainly changes with scan radium. By optimizing laser processing parameters the micro-pit dimensions could be independently controlled. These two methods could process micro-pits with different diameters and depth on alumina ceramic.

Parts Surface Structure Image Classification Detection System Design

In order to accomplish the automatic nondestructive testing, a parts surface structure image classification detection system is designed. A series of parts surface texture images have been obtained from different processing methods for feature analysis and the combination of pre-processing method by MATLAB image processing toolbox has been put forward, using statistical analysis method for feature extraction. Based on the established BP neural network training optimization identification system, this paper realized the recognition of parts surface resulted from four kinds of processing methods: turning, milling, planing and grinding. The research results show that the deficit value of gray level co-occurrence matrix and the histogram matrix variance value can be regarded as characteristic parts of the surface texture structure value, providing foundations for further development of parts surface structure detection.

Select alternative technology to sulfur fumigation for Astragali Radix based on multi-index method

Sulfur fumigation method is often used in the habitat processing of Astragali Radix in order to make it mothproof, mildewproof and easy to dry; however, this method has great influence on the inherent quality of Astragali Radix. Therefore, it is urgent to develop the alternative technology to sulfur fumigation. In the present paper, appearance characteristics, content of active ingredients, containing water, extracting content and microbial content in Astragali Radix were taken as the indexes to compare the quality of Astragali Radix processed with 9 kinds of processing methods (traditional processing method, sulfur fumigation and 7 kinds of alternative processing technologies). Combined hot air-microwave technology was finally determined as an alternative technology to sulfur fumigation.

FEASIBILITY STUDY ON TREATMENT PLAN OF SCOURING WASTEWATER IN THE PRINTING AND DYEING WASTEWATER

With the rapid development of printing and dyeing industry, the total emissions of printing and dyeing wastewater growing day by day, the components are more and more complex. At present, comprehensive treatment method to sewage treatment is used primarily in printing and dyeing wastewater. This not only increases the area, but also increases the processing cost. In this article, scouring wastewater in the printing and dyeing wastewater is treated separately. Meanwhile, compared the two kinds of processing methods in terms of economy and technology,demonstrated the feasibility of scouring wastewater treated separately, provided theoretical basis for diversified treatment of printing and dyeing wastewater.

Active Power Control Simulation Platform Research of Wind Farm Based on Multi-Agent

The realization of the automation, routinization and intelligentization of dispatch control in wind farms is the key to the integration of wind farms into power grid management system. Active power regulate and control system in wind farms has increasingly high demand on timeliness, but at present this system is mostly equipped with centralized unidirectional control with poor timeliness and low utilization ratio for wind energy resources. The characteristics of distribution and instantaneity owned by the active power regulate and control system in wind farms are highly consistent with Multi-Agent system. This paper discusses a kind of processing method that is used in real-time, distributed and parallel computation and processing for multiple simultaneously running wind turbines, which is based on Multi-Agent technology and adopting JADE development platform. This method converts massive centralized computation to distributed computation, which optimizes the effect of the power control. This method makes the effectiveness of active power regulate and control system better, wins time for timely allocating electricity generation assignments and dealing with problems, and avoids the heavy loss of resources.

Based on the Protection of Water Pack Polysaccharide Processing Technology and its Optimization

Purpose: For health water pack polysaccharide easy loss occurred during processing, establish a high retention rate of the processing method. Method: Chooseing slice thickness, heating time and temperature as the parameter, the water pack for steaming, boiled, Fried, baked oil heating treatment, determination of the water pack polysaccharide content, it is concluded that optimal process parameters, the retention rate of statistics. Results: The best conditions for water pack all kinds of processing method is: (1) steamed products: slice thickness of 1.6 cm, 106 °C steamed 10 mins; (2) boiled products: slice thickness of 1.2 cm, 90 °C cooked for 10 mins; (3) baked products: the slice thickness of 0.2 cm, 160 °C baking 14 mins; (4) Fried products: the slice thickness of 0.2 cm, and 150 °C the frying time of 5.5 mins. Processing products in water pack polysaccharide retention rate is as follows: Steaming > Boiled > Fried > Baking. Conclusion: steamed processing for water pack polysaccharide retention rate is high, is the water pack of preferred processing method; Boiled, grilled, Fried method should choose low heating temperature.

Application of MasterCAM in the Processing of Avoiding Valve Pits of Piston

This paper selects two kinds of different avoiding valve pits of piston as the processing object, establish manufacturing process and complete the simulation of NC machining to generate NC code for machining avoiding valve pits in the Mastercam software, try to machine avoiding valve pits with two kinds of surface programming method in the Mastercam software, discuss and analysis the effect in programming and NC machining of avoiding valve pits in two kinds of different surface finishing method , to choose an appropriate kind of processing method for avoiding valve pits of piston.

The Theoretical Analysis and Experimental Study on the Distribution Characteristics of Motion Parameters in the Process of Honing Gear

Gear honing processing is a kind of processing method which belongs to the point-contact generating gear finishing. Its movement form is equivalent to a pair of gears transmission which the surface of the gear-honing-tool is adhered a layer of grinding grain. When it works in rolling processing, the contact-point between the workpiece and gear-honing-tool is moving. Then the moving point becomes a line in the space, and with the gear-honing-tool being in axial play, a standard flank of tooth is finished. Using the gear meshing principle, kinematics model of relative sliding velocity in the contact-point between the workpiece and tools is established, based on which the contact-line equation. and acceleration equation. at the contact-point are derived. The contact-line is solved in a given parameters of the workpiece and tool in MATLAB. The theoretical derivation and experimental results show that the speed in diverse along the direction of the tooth depth is the main reason for the roughness value and surface texture of workpiece. The acceleration of contact-line at the tooth flank is different, and it is leading reason that the processed workpiece gears appear profile distortion. Finally, the testing system is established for researching honing gear process. It is showed in the results that the acceleration difference can lead to the CBN abrasive falling away from gear honing tool, and even the "anti-cutting" phenomenon.

On Pretreatment Experimental Study of High Strength Gypsum by Yunnan Phosphorus Gypsum

This thesis mainly studies the preprocessing of making high strength gypsum powder by using phosphogypsum. And bring out the new preprocessing of phosphogypsum from the traditional methods. And the new method improved the traditional 3 kinds of processing methods. After processing of phosphogypsum, strength and crystal morphology were compared to shown the better one.

English

Transgenic Vetiveria zizanioides were anaerobic digested in a batch laboratory scale reactor at mesophilic conditions (30°C). Grinding and shearing, two kinds of processing methods were used. During total fermentation time of 80 days, the production potential of biogas were 310 mL/g·TS, 332 mL/g·VS in the grinding processing group and 322 mL/g·TS, 349 mL/g·VS in the shearing processing group. The results show that the shearing processing was slightly better than the grinding processing for transgenic V.  zizanioides digestion.   Key words: Transgenic Vetiveria zizanioides, mesophilic, anaerobic digestion, biogas production potential.

The Application of Induction Logging Adaptive Deconvolution Processing in Water Flooded Recognition

The adaptive deconvolution processing is a kind of processing method for different background conditions. The reservoir of FuYang group in Yushulin oil field has the typical uneven feature with low porosity and low permeability. After the oil reservoir flooded by ejecting water, the zones without water and the zones with water interlaced with each other, that makes the induction logging curves with lower longitudinal resolution hardly reflect actual water-flooding condition. This paper takes adaptive deconvolution processing method selecting background conductivities according to the measurement points’ conductivities, which improve the resolution of induction logging data significantly. The processing value of resistivity is similar with the true formation resistivity.This method is better on identifying the water flooded condition of the oil reservoir.