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2015

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Kohn–Sham Exchange-Correlation Potentials From Second-Order Reduced Density Matrices, Rogelio Cuevas-Saavedra, Paul W. Ayers, Viktor N. Staroverov Dec 2015

Kohn–Sham Exchange-Correlation Potentials From Second-Order Reduced Density Matrices, Rogelio Cuevas-Saavedra, Paul W. Ayers, Viktor N. Staroverov

Chemistry Publications

We describe a practical algorithm for constructing the Kohn–Sham exchange-correlation potential corresponding to a given second-order reduced density matrix. Unlike conventional Kohn–Sham inversion methods in which such potentials are extracted from ground-state electron densities, the proposed technique delivers unambiguous results in finite basis sets. The approach can also be used to separate approximately the exchange and correlation potentials for a many-electron system for which the reduced density matrix is known. The algorithm is implemented for configuration-interaction wave functions and its performance is illustrated with numerical examples.

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Research On Characteristics Of Burdock By Microwave Drying At Constant Temperature, Ji Fei, Li Zhenfeng, Li Jing, Xu Wanxiu Dec 2015

Research On Characteristics Of Burdock By Microwave Drying At Constant Temperature, Ji Fei, Li Zhenfeng, Li Jing, Xu Wanxiu

Food and Machinery

The drying characteristics of burdock were studied using self-made weight and temperature facilities. The moisture content and the internal temperature were acquired online. Taken microwave power density, temperature and sample depth as the influence factor, and the optimal parameters for drying burdock by microwave were obtained through orthogonal experiment. The optimized parameters were as followed: the power density 10 W/g, the internal temperature of sample 60 ℃, and the samples thickness 2 mm. Under these conditions, the rehydration rate R value and the color difference ΔE value of dried burdock were 3.77 and 64.37, respectively. ANOVA of the evaluation index …

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Study On Characteristics On Depth Of Walnut By Hot-Air Drying, Wang Qinghui, Yan Shengkun, Li Zhongxin, Gao Zhenjiang Dec 2015

Study On Characteristics On Depth Of Walnut By Hot-Air Drying, Wang Qinghui, Yan Shengkun, Li Zhongxin, Gao Zhenjiang

Food and Machinery

To solve the problem of drying in walnut postharvest processing, the hot-air drying technology was applied to walnut. A specifically depth drying equipment was designed and the experiment was done. The drying characteristics of walnut were investigated under different drying temperatures (35, 40, 45, 50 ℃), air velocities (0.5, 1.0, 1.5, 2.0 m/s), and load depths (0.6, 0.9, 1.2, 1.5 m). Experimental results showed that the whole drying process occurred in the falling rate period, and the effect of drying temperature, air velocity and load depth on drying characteristics was significant. The optimal drying process was temperature 45 ℃, air …

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Concussions, Richard C. Crepeau Dec 2015

Concussions, Richard C. Crepeau

On Sport and Society

ESPN reported this week that the NFL had pulled funding for concussion research because one of the principal researchers was Dr. Robert Stern of Boston University who has been critical of the NFL. The grant was awarded by the National Institute of Health(NIH) and the NFL denied pulling out of the grant saying that the NIH made all funding decisions and that the NFL has no veto power over the use of the $30M it had donated to the NIH in 2012 with no strings attached. It turns out however that it did retain a veto over the use of …

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Advanced Techniques For Computational And Information Sciences, William Guo, Chih-Cheng Hung, Paul Scheunders, Bor-Chen Kuo Dec 2015

Advanced Techniques For Computational And Information Sciences, William Guo, Chih-Cheng Hung, Paul Scheunders, Bor-Chen Kuo

Faculty Articles

New techniques in computational and information sciences have played an important role in keeping advancing the so called knowledge economy. Advanced techniques have been introduced to or emerging in almost every field of the scientific world for hundreds of years, which has been accelerated since the late 1970s when the advancement in computers and digital technologies brought the world into the Information Era. In addition to the rapid development of computational intelligence and new data fusion techniques in the past thirty years [1–4], mobile and cloud computing, grid computing driven numeric computation models, big data intelligence, and other emerging technologies …

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Applications Of Carbon Materials In Electrochemical Energy Storage, Ji Liang, Lei Wen, Hui-Ming Cheng, Feng Li Dec 2015

Applications Of Carbon Materials In Electrochemical Energy Storage, Ji Liang, Lei Wen, Hui-Ming Cheng, Feng Li

Journal of Electrochemistry

An electrode material for electrochemical energy storage is one of the key components for high performance devices. In a variety of electrochemical energy storage systems, carbon materials, especially the lately emerged carbon nanomaterials including the carbon nanotube and graphene, have been playing a very important role and brought new vitality to the development and demonstration of the broad application prospects. In this review, we summarize the applications of various carbon materials in the typical electrochemical energy storage devices, namely lithium/sodium ion batteries, supercapacitors, and lithium-sulfur batteries, as well as flexible electrochemical energy storage and electrochemical catalysis. A perspective of novel …

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Progress Of Self-Supported Supercapacitor Electrode Materials Based On Carbon Substrates, Shui-Jian He, Wei Chen Dec 2015

Progress Of Self-Supported Supercapacitor Electrode Materials Based On Carbon Substrates, Shui-Jian He, Wei Chen

Journal of Electrochemistry

Self-supported electrode materials have been widely used in supercapacitors. Carbon materials are promising substrates in building self-supported electrode materials attributed to their diverse structures, rich resource, relatively low cost and high stability. Combined with our own research in this field, we summarize here the recent progress on the synthesis of self-supported electrode materials and their supercapacitance properties. The overall synthetic strategy could be divided into two categories: “top-down” and “bottom-up”. We hope this review is helpful for the development and application of renewable sources in self-supported electrode materials.

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Synthesis Of Porous Carbon Nanosheets And Its Application In Sodium-Ion Battery, Jing-Fei Zhang, Jing Lu, Xiao-Yu Yang, Yun-Di Huang, Lin Xu, Dong-Mei Sun, Ya-Wen Tang Dec 2015

Synthesis Of Porous Carbon Nanosheets And Its Application In Sodium-Ion Battery, Jing-Fei Zhang, Jing Lu, Xiao-Yu Yang, Yun-Di Huang, Lin Xu, Dong-Mei Sun, Ya-Wen Tang

Journal of Electrochemistry

Owning to sodium’s high abundance, relatively low cost, similar chemical properties to Li and very suitable redox potential of E0(Na+/Na) = -2.71 V versus SHE which is only 0.3 V above that of lithium, rechargeable sodium ion battery hold much promise as potential alternatives to current lithium ion batteries for energy storage applications. Carbon material is regarded as the most promising anode candidate for sodium ion battery. Particularly, carbon nanosheet with porous structure and high conductivity is expected to have improved sodium ion storage properties. In this paper, we present a two-step pyrolysis-based method for facile …

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Carbon Aerogel/Nickel Foam As Electrode For High-Performance Supercapacitor, Zhong Wu, Xin-Bo Zhang Dec 2015

Carbon Aerogel/Nickel Foam As Electrode For High-Performance Supercapacitor, Zhong Wu, Xin-Bo Zhang

Journal of Electrochemistry

Herein, a facile synthesis has been explored to prepare carbon aerogel/Ni foam. Graphene oxide, resorcinol and formaldehyde serve as precursors and polymerize in-situ on the Ni foam after hydrothermal synthesis at 85 ℃. After lyophilization treatment, the carbon aerogel/Ni foam with porous structure can be obtained. Electrochemical investigations reveal that the carbon aerogel/Ni foam exhibits superior performances in both aqueous and organic electrolytes involving high specific capacitance and long-term cycling stability. The excellent properties can be ascribed to the unique formation and porous structure, which allows more effective transportations of electron and electrolyte ion.

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Intercalation Of Clo4- Into Hopg Investigated By Ec-Stm, Xiao-Yan Hu, Alice Aliwowe, Jia-Wei Yan, Bing-Wei Mao Dec 2015

Intercalation Of Clo4- Into Hopg Investigated By Ec-Stm, Xiao-Yan Hu, Alice Aliwowe, Jia-Wei Yan, Bing-Wei Mao

Journal of Electrochemistry

The electrochemical intercalation and surface morphology of highly oriented pyrolytic graphite (HOPG) electrode in 2 mol⋅L-1 HClO4 were studied by in situ scanning tunneling microscopy (STM) and cyclic voltammetry (CV). Based on the step-height changes observed before and after the intercalation, the effects of different step sites on intercalation are compared. The feasibility, reversibility and speed of intercalation are discussed. The intercalation ofClO4- into HOPG can be divided into three types depending on the number of graphite layers at the step site: When the layers of graphite are more than three, the intercalation becomes feasible; when …

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Effect Of Mno2 Content On Electrochemical Capacitance Behavior Of Active Carbon Electrode, Kun Shen, Xian-Liang Zhou, Qi-Shun Duan Dec 2015

Effect Of Mno2 Content On Electrochemical Capacitance Behavior Of Active Carbon Electrode, Kun Shen, Xian-Liang Zhou, Qi-Shun Duan

Journal of Electrochemistry

In this work, the manganese dioxide (MnO2) materials were prepared by solution approach at low temperature, thermal decomposition and electrochemical deposition. The actived carbon (AC) and MnO2composite electrodes were used for aqueous supercapacitors. The morphologies and structures of the prepared materials were characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM), and the electrochemical behaviors were tested by cyclic voltammetry (CV) and galanostatic charge-discharge tests. Electrochemical test data show that the maximum specific capacitances of 151, 172 and 141 F•g-1were obtained with the contents of MnO2being 70, 60 and 70% in …

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Fast And Accurate Evaluation Of Lifepo4 Cathode Materials By Single Particle Microelectrode, Fu-Qing Wang, Yi-Min Wei, Yu-Zhuan Su, Bing-Wei Mao, Kai Wu, Feng-Gang Zhao, Chun-Lei Chen, Xing-Lu Li, Jin Chong Dec 2015

Fast And Accurate Evaluation Of Lifepo4 Cathode Materials By Single Particle Microelectrode, Fu-Qing Wang, Yi-Min Wei, Yu-Zhuan Su, Bing-Wei Mao, Kai Wu, Feng-Gang Zhao, Chun-Lei Chen, Xing-Lu Li, Jin Chong

Journal of Electrochemistry

Single particle microelectrode enables to evaluate the electrochemical responses for single particle of active material without binder and conductive agent. Thus, the influences of additive and electrode structure on the electrochemical performance of active materials can be ignored. Furthermore, this technology can be used to evaluate active materials fast. Therefore, single particle microelectrode allows fast and accurate determination of the intrinsic performance of active material. Cyclic voltammogram (CV), cycle performance, and kinetic behavior of LiFePO4 cathode materials were evaluated by the single particle microelectrode. CV curve of LiFePO4 particle with a pair of oxidation and reduction peaks was …

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Illustrated Correlation Of Brain C.T. Scan Findings In Clinical Assessment Of Spontaneous Intracerebral Haematoma In Patients With Positive Risk Factors, Yasir Mohammed Hasan Hamandi Dec 2015

Illustrated Correlation Of Brain C.T. Scan Findings In Clinical Assessment Of Spontaneous Intracerebral Haematoma In Patients With Positive Risk Factors, Yasir Mohammed Hasan Hamandi

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Spontaneous intracerebral hemorrhage (SICH) is defined as non-traumatic bleeding into the parenchyma of the brain that may extend into the . head computed tomography scan is the standard diagnostic tool OBJECTIVE: Find out the most important risk factor for SICH.and Illustrate the correlation between the sites of hemorrhage detected by CT scan images and patients presentations. PATIENTS AND METHODS: A prospective study between May 2010 and May 2012; this study was done in the CT unit in AL- Imamain Kadhimmain medical city, Baghdad, The study included 224 consecutive patients with the diagnosis of primary SICH.All the patients had …

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The Outcome Of Combined Conchal Excision, Concho-Scaphal Sutures And Concho-Mastoid Sutures Techniques For Treatment Of Prominent Ears, Sabir Osman Mustafa Dec 2015

The Outcome Of Combined Conchal Excision, Concho-Scaphal Sutures And Concho-Mastoid Sutures Techniques For Treatment Of Prominent Ears, Sabir Osman Mustafa

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Prominent ear is one of the most common congenital deformities of the head and neck region. It can affect the aesthetics and psychosocial aspects of patients. There are over 170 techniques described in the literatures, but many do not adequately address the specific problem and can prove unstable. Technique selection in otoplasty should be done only after careful analysis of the abnormal anatomy responsible for the protruding ear deformity. OBJECTIVE: To evaluate the outcome of combined conchal excision, concho-scaphal sutures, and concho-mastoid sutures techniques for treatment of prominent ear. PATIENTS AND METHOD: A retrospective study was performed on …

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Diagnosis Of Premature Rupture Of Fetal Membranes By Identification Of Vaginal Fluid Urea And Creatinine, Introduction, Rihab Abdel Lateef, Premature Rupture Of Membrane, Prom, Maha Mohammed Al-Bayati, Is A Common Obstetrical Problem, And The Assessment Of The Women With A Possible Membrane Rupture Is A, Fadia Jassim Al-Izzi Dec 2015

Diagnosis Of Premature Rupture Of Fetal Membranes By Identification Of Vaginal Fluid Urea And Creatinine, Introduction, Rihab Abdel Lateef, Premature Rupture Of Membrane, Prom, Maha Mohammed Al-Bayati, Is A Common Obstetrical Problem, And The Assessment Of The Women With A Possible Membrane Rupture Is A, Fadia Jassim Al-Izzi

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Premature rupture of fetal membrane is one of the most common and controversial problem facing the obstetric clinician. Its Correct diagnosis has great importance because failure of diagnosis can lead to unwanted obstetric complications or over diagnosis can lead to unnecessary intervention. OBJECTIVE: To evaluate the reliability of vaginal fluid urea and creatinine for the diagnosis of premature rupture of membrane. PATIENTS AND METHODS: This study had been conducted in AL-Yarmouk Teaching Hospital, Department of Obstetrics and Gynecology. In this study,105 pregnant women presented between 24-41 weeks of gestation were included, three groups were considered in this cohort, …

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The Value Of Focused Assessment Sonography For Trauma (Fast) In The Management Of Patients With Blunt Trauma To The Abdomen, Nabeel Isam Naiem, Mohammed Mahmood, Tharwat Idrees Sulaiman, Yahya Kareem Hammoodi Dec 2015

The Value Of Focused Assessment Sonography For Trauma (Fast) In The Management Of Patients With Blunt Trauma To The Abdomen, Nabeel Isam Naiem, Mohammed Mahmood, Tharwat Idrees Sulaiman, Yahya Kareem Hammoodi

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: During the last decade focused assessment with sonography for trauma increasingly has become the initial diagnostic modality of choice in trauma patients. OBJECTIVE: This study was carried to evaluate the sensitivity, specificity and accuracy of FAST when done by residents in the emergency surgical department, & its effect in determining the type of management. PATIENTS AND METHOD: 210 patients with blunt abdominal trauma were assessed with FAST within 30 minutes from admission to the emergency room. FAST results were considered positive if it detected intra peritoneal fluid , negative if it did not detect intra peritoneal fluid , …

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Identification Of Some Annona Muricata L.(Soursop) Components And Their Antioxidant Effects In Rats, Mustafa Taha Mohammed, Sarah Isam Abbas, Rehab Abd Al-Mahdi Dec 2015

Identification Of Some Annona Muricata L.(Soursop) Components And Their Antioxidant Effects In Rats, Mustafa Taha Mohammed, Sarah Isam Abbas, Rehab Abd Al-Mahdi

Iraqi Postgraduate Medical Journal

ABSTRACT: BACKGROUND: Oxidative stress defines that, the level of Reactive Oxygen Species (ROS) exists in excess of antioxidant defenses. This imbalance in the redox milieu results in a switch from ROS-stimulated ambient signaling processes to ROS-mediated pathophysiological consequences. Oxidative stress has been implicated in the installation and progression of several degenerative diseases via DNA mutation, protein oxidation and lipid peroxidation. Therefore, possible use of soursop fruit extract to protect brain against the Lipid peroxidation. OBJECTIVE: The present study was undertaken to evaluate the potential of Soursop (Annona Muricata L.) against the DPPH Free Radical Scavenging System and Lipid peroxidation. METHODS: …

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Application Of Extrusion Technology For Preparing Defatted Black Soybean Meal Reconstituted Powder, Zhang Lin, Li Jianke, Ren Caixia, Sun Xuesi, Qin Lingxiang Dec 2015

Application Of Extrusion Technology For Preparing Defatted Black Soybean Meal Reconstituted Powder, Zhang Lin, Li Jianke, Ren Caixia, Sun Xuesi, Qin Lingxiang

Food and Machinery

The extruding and expanding experiment was studied with the black soybean meal as material, mixing corn starch by twin-screw extruder to make reconstituted powder, The best expanded technical parameters were determined, and studied the formula, the extrusion ratio, the reconstituability, the viscosity, the color of this powder flour. The optimal formula of the powder was as follows: black soybean meal 30%, corn starch 45%, sugar 15%, maltodextrin 10%, creamer 6%.

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Optimization On Processing Of Trachinotus Ovatus Surimi Gel By Response Surface Methodology, Huang He, Wang Na, Chen Liang, Wu Wenlong Dec 2015

Optimization On Processing Of Trachinotus Ovatus Surimi Gel By Response Surface Methodology, Huang He, Wang Na, Chen Liang, Wu Wenlong

Food and Machinery

With Trachinotus ovatus surimi gel as the research object, using the fractional factorial experiment screened out five factors from the seven factors, such as rinsing time, rinsing times, mincing time and twice heating time, which had a great effect on the surimi gel strength and whiteness. And then through the steepest uphill test to approach the maximum response area of the 5 factors, the final optimized by central composite design response surface methodology, the optimal results showed that: the rinsing time was 3 min, rinsing 5 times, mincing time was 21 min, the first heating time was 10 min, second …

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Study On Processing Technology Of Plum Juice Beverage With Pulp, Cheng Ce, Lu Jun, Han Wenqi, Huang Hui, Li Zhonghai Dec 2015

Study On Processing Technology Of Plum Juice Beverage With Pulp, Cheng Ce, Lu Jun, Han Wenqi, Huang Hui, Li Zhonghai

Food and Machinery

Discussed on the processing technology of plum juice beverage with pulp. The main parameters of the process, including peeling method, pectinase dosage, the color fixative and juice recipes were studied by single factor and orthogonal test. The results showed that the optimum leaching method was alkaline peeling; the optimum pectinase dosage was 200 mg/L. The composite color fixative optimal ratio composed 0.15 g/100 mL of VC, 0.20 g/100 mL of citric acid, 0.30 g/100 mL of sodium bisulfite; The best formula were 15 g/100 mL of plum content, 9.0 g/100 mL of sugar, 0.10 g/100 mL of citric …

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Advances In Research Of Cftr Inhibitors Extracted From Foods And Herbal Plants, Luan Jian, Yang Hong Dec 2015

Advances In Research Of Cftr Inhibitors Extracted From Foods And Herbal Plants, Luan Jian, Yang Hong

Food and Machinery

CFTR chloride channel is the molecular drug target for the treatment of secretory diarrhea. Screening CFTR inhibitors is the most important and basic part of anti-diarrheal drug development. The natural products are diversified both in the structure and the biological activity. In the discovery of drugs and leading compounds, natural products play a key role and become the main source of drug development. Natural products from foods and herbal plants are usually safe for low or no toxicity and side-effect in clinic. CFTR inhibitors which source of foods and traditional Chinese medicines are important of study and treatment of CFTR …

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Research Progress On Application Of Magnetic Nanoparticles In Composition Isolation And Safety Detection In Food Field, Tang Yao, Xu Zhou, Ding Li, Wang Libing, Cheng Yunhui Dec 2015

Research Progress On Application Of Magnetic Nanoparticles In Composition Isolation And Safety Detection In Food Field, Tang Yao, Xu Zhou, Ding Li, Wang Libing, Cheng Yunhui

Food and Machinery

Magnetic nanoparticles is a kind of new polymer materials, which has been widely used in the field of biomedical, food and environment in recent years．The magnetic nanoparticles with suitable surface modification are capable of binding molecules selectively and has property of special magnetic response. In this review, the research progress on applications of magnetic nanoparticles in food composition separation and food safety detection were reviewed, and the application prospect were discussed.

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Application Progress Of Gas Chromatography And Its Hyphenated Technology In Meat Products, Ye Yongli, He Xinrui, Chen Shien, Hu Xiaopeng, Ma Zhongren Dec 2015

Application Progress Of Gas Chromatography And Its Hyphenated Technology In Meat Products, Ye Yongli, He Xinrui, Chen Shien, Hu Xiaopeng, Ma Zhongren

Food and Machinery

As a mature technology, gas chromatography has been widely used in analysis of composition and content of material, and it is also promising for analysis of food nutrition components and quality and security as it is easy, fast to use. The application of gas chromatography and its hyphenated technology in nutrition ingredient analysis, flavor compound, freshness, pesticide and veterinary residue, and toxic chemical from environment and process of meat and meat products are reviewed, and then prospected its perspective applications in meat detection.

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Effects Of Breaking Cell Wall On Rape Bee Pollen Treated With Pectinase Using Multi-Index Evaluation, Wang Kai, Ren Xiangnan, Dong Jie, Zhang Gensheng Dec 2015

Effects Of Breaking Cell Wall On Rape Bee Pollen Treated With Pectinase Using Multi-Index Evaluation, Wang Kai, Ren Xiangnan, Dong Jie, Zhang Gensheng

Food and Machinery

To improve wall-broken effects of bee pollen, rape bee pollen was selected as material and treated with pectinase in different pH and temperature. The effects of pectinase on rape bee pollen were evaluated by protein dispersion index, soluble sugar content, microscopic analysis and particle size distribution. The results demonstrated that pectinase hydrolysis could disintegrate the intine at the germinal apertures, the optimal conditions were pH 3.5 and temperature 50 ℃. Under optimal conditions, protein dispersion index was 0.684 6, and soluble sugar content was 24.86%. By microscopic analysis, some germinal apertures seemed apart and some little particles emerged. According to …

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Drying Kinetics Of Pullulan-Based Film Forming Solutions, Zhou Yujia, Xiao Qian, Lu Xingchi, Deng Fangming Dec 2015

Drying Kinetics Of Pullulan-Based Film Forming Solutions, Zhou Yujia, Xiao Qian, Lu Xingchi, Deng Fangming

Food and Machinery

The drying kinetics of pullulan and pullulan-PEG film forming solutions were investigated. The results were as followed: the drying curves of pullulan-based films were divided into three stages: the rising rate, the falling rate, and the constant rate period; four mathematical models were fitted to the experimental data; among the drying models considered, the Wang and singh model was found to satisfactorily describe the drying kinetics of pullulan solutions. However, Modified Page equation-II model was found to satisfactorily describe the drying kinetics of pullulan-PEG solutions. As the drying temperature increased from 40 ℃ to 70 ℃, the effective moisture diffusion …

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Analysis Of Amino Acid Composition And Nutritional Evaluation Of 22 Spirulina(Athrospira) Strains, Yan Chunyu, Wang Suying, Dong Shirui Dec 2015

Analysis Of Amino Acid Composition And Nutritional Evaluation Of 22 Spirulina(Athrospira) Strains, Yan Chunyu, Wang Suying, Dong Shirui

Food and Machinery

No abstract provided.

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Optimization On Glutaminase Production From Bacillus Amyloliquefaciens Swjs22 By Solid-State Fermentation, Zhou Chihongling, Cui Cun, Zhao Mouming Dec 2015

Optimization On Glutaminase Production From Bacillus Amyloliquefaciens Swjs22 By Solid-State Fermentation, Zhou Chihongling, Cui Cun, Zhao Mouming

Food and Machinery

A Bacillus amyloliquefaciens strain SWJS22 isolated from deep sea mud of the South China Sea was used to produce glutaminase by solid-state fermentation. Using single factor test and orthogonal test, including culture media and the fermentation parameters, was applied to optimize glutaminase production technology; optimal fermentation conditions were: 2% (V/m) seed liquid was inoculated in a culture medium composed of 20 g soy flakes, 5 g wheat flour, 0.02 g SE-1170, water to solid in a ratio of 1.0∶0.6 (m∶m), and fermented at 37 ℃ for 48 h. Under this optimized condition, the L-glutaminase activity was increased from （83.10±4.64） U/mgds …

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Drying Characteristics With Short- And Medium- Wave Infrared And Quality Changing Of Hosui Pear, Tang Lulu, Yi Jianyong, Bi Jinfeng, Chen Qinqin, Hou Xujie, Liu Xuan Dec 2015

Drying Characteristics With Short- And Medium- Wave Infrared And Quality Changing Of Hosui Pear, Tang Lulu, Yi Jianyong, Bi Jinfeng, Chen Qinqin, Hou Xujie, Liu Xuan

Food and Machinery

In order to improve the qualities of dried hosui pear(Pyrus pyrifolia Nakai.) slices and shorten the drying time, short- and medium- wave infrared drying was applied to drying hosui pear slices. The effects of drying temperatures, drying power, and radiation distances on the drying characteristic of hosui pear were investigated. Meanwhile, the impact of short- and medium- wave infrared drying on color, texture and moisture content of dried hosui pear were analyzed. The results showed that the drying procedure appeared as a falling rate period. The water effective diffusion coefficient (Deff) of hosui pear ranged from 8.622 6×10 …

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Determination On Salt Content Of Dry-Cured Meat By Rapid And Non-Invasion Impedance Technology, Chen Tianhao, Han Minyi, Wang Peng, Wei Ran, Xu Xinglian Dec 2015

Determination On Salt Content Of Dry-Cured Meat By Rapid And Non-Invasion Impedance Technology, Chen Tianhao, Han Minyi, Wang Peng, Wei Ran, Xu Xinglian

Food and Machinery

The experiment was conducted to establish a new method to determine the salt content in cured meat and treated the meat with different salt content as samples. Impedance, salt content and water content were measured in the experiment and the results showed that the method would be a good choice for the determination of the salt content. Result: And, there was strong relationship between the impedance and the salt content. It is possible to construct some linear model between these two parameters. It indicated that there is good correlation between the predicted salt content and impedance magnitude (R2=0.980 …

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Changes On Sugar Profiles In Honey During Ripening, Xu Xian, Gu Zhenyu Dec 2015

Changes On Sugar Profiles In Honey During Ripening, Xu Xian, Gu Zhenyu

Food and Machinery

To find the rules on honey during ripening and obtain the special indicators, the physicochemical parameters and sugar profiles were studied. Moisture, soluble solids, pH, acidity, and conductivity were detected according to national standards. Sugar profiles of different storage time in hive, one day, two days, four days, six days and which was completely ripened were isolated and identified by HPLC—ELSD. Analysis of variance (ANOVA) showed that there were significant differences in honey of different storage time in hive; while the principal component analysis(PCA) showed that fructose, trehalose, glucose, maltulose, erlose were the major factors causing this difference. So the …

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