“网络名片”伴你生活e时代

As an reporter, I always need to make appointments for my interviews. Upon the first contact with the intended person to be interviewed, I am always be asked by the public relationship manager of the entity to be interviewed to fax my business card to him/her. At first, I feel worried about this because business card is small and hard that cannot be faxed and it is not proper to fax by a copy or handwriting of it. But now, I am not worried any more because I now have a“digital business card”-by e-mail I can send my personal information and interview outline to my clients' e-mail boxes. You might want to know what is 'digital business card'? As its name suggests,it is the business card on the internet, which has parted from the conventional paper and ink, and is an effective“digital medial”.     

Highly Conductive Fractal-structured Silver Particles for Preparing Flexible Printed Circuits via Screen Printing

Fractal-structured silver particles(FSSPs) are conductive materials with a micron-scale trunk and nanoscale branches, and are characterized with high electrical conductivity and high connectivity. In this study, FSSPs were added to an aqueous additive solution for synthesizing a conductive ink,which was used to prepare two types of printing electrodes via screen printing. The first type included two flexible printed electrodes(FPEs): an FPE on a polyethylene terephthalate(PET) film and an FPE on paper. The second one was a polydimethylsiloxane(PDMS)-embedded FPE. The PETbased FPE exhibited high electrochemical stability when its sheet resistance was 0.38 Ω/sq for a 50%(w/w) content of FSSPs in the prepared conductive ink. Moreover, the embedded FPE demonstrated excellent mechanical properties and high chemical stability. In addition, the embedded structure was endowed with stretchability, which is important for different devices,such as flexible biomedical sensors and flexible electronics.     

Green and Effective Ammonium Carbonate-assisted Process for Drying Hemicellulose Obtained through Alkali Extraction of Bleached Bamboo Kraft Pulp

Hemicellulose has a wide range of applications,including that as an emulsifier for the food industry and raw material for the synthesis of bioethanol/biochemicals and biodegradable films.Hemicellulose is usually present as a spent liquor,such as the prehydrolysis liquor of the prehydrolysis kraft dissolving pulp production process and the alkali extraction liquor of the cold caustic extraction of pulp fibers.Due to its dilute nature,hemicellulose needs to be dried for practical utilization,and this is challenging.In this study,cellulose and hemicellulose in a bleached bamboo kraft pulp were separated using an alkali extraction process.Hemicellulose obtained from the extraction liquor was dried by an ammonium carbonate-assisted drying process.The effects of drying time and drying temperature were determined.Structure of the hemicellulose obtained by the ammonium carbonate-assisted drying process was similar to that of original hemicellulose,as revealed by detailed Fourier transform infrared and X-ray diffraction analyses.The novel drying method was more energy efficient and required a shorter drying time than the conventional freeze drying method,and the excellent solubility in alkaline solutions favored the chemical modification of hemicellulose.The dried hemicellulose can be used as a renewable raw material for the preparation of hydrogels and other substances such as bioethanol/biochemicals and biodegradable films.     

Effects of Probiotic Lactobacillus gasseri Strains of Breast-Fed Infant in a Murine Model

The ingestion of probiotic lactic acid bacteria has been evaluated and noted that it has an effect on the balance of desirable microbiota in the gastrointestinal tract. Lactobacillus gasseri demonstrates good survival in the gastrointestinal tract, and it has been associated with a variety of probiotic activities and roles, including the reduction of fecal mutagenic enzymes, the production of bacteriocins and the stimulation of macrophages immunomodulation. The aim of the study was to evaluate the effects of a pool of L. gasseri strains isolated from the feces of breastfed infants added in the human milk of healthy women. The milk was both pasteurized and unpasteurized, to verify the cell cytotoxicity of macrophages and to quantify the production of immunologic mediators such as IL-4, IL-6, IFN-γ, TNF-α, NO and oxygen intermediary compounds （H2O2）. The administration of raw human milk and pasteurized human milk to infants is a regular, encouraged practice in units of intensive therapy （UITs） and our present investigation verified the beneficial effect of addition of a pool of L. gasseri to pasteurized human milk （PHML）. Our results show that probiotic supplementation helped to maintain cell viability, reduced IL-6 and IFN-γ production and stimulated TNF-α, NO, H2O2, IL-4 production. Nevertheless, the results indicate that the addition of lactobacillus to human milk was not a determinant in the production of TNF-α. L. gasseri added to breast milk did not present a cytotoxic risk, and the addition ofL. gasseri to pasteurized milk of human milk bank would benefit newborns that depend on milk banks for the colonization of more desirable microbiota.     

On COVID-19 and Membrane Lipids and Public Health (英文原文)(Online First, Recommended Article)

Coronavirus has a lipid membrane. Whist replication requires hijacking the RNA tools of the host to synthesize virion protein, that then has to be wrapped in a lipid membrane to enable the budding off which extends the infection. Recent studies implicate certain essential fatty acids with replication suppression properties. The lipid membrane is commonly thought of as a fatty barrier to water solubles. It is however highly ordered and compositionally specific to cellular and sub cellular functions. There will likely also be an optimum specificity for the viral coat. Whist DNA, RNA and protein compositions are not affected by diet, the lipid membrane is. Moreover, the greater sensitivity of males over females to inadequacy of these essential fatty acids and membrane integrity has been known since the 1960 s. With evidence that arachidonic and docosahexaenoic acids exhibiting anti-viral, immune, anti-inflammatory, blood pressure control and resolvin activity, their status needs to be urgently examined in relation to the prevention and therapy for Covid-19. It would also be advisable to re-assess food policy. The lipid requirements for the membrane rich systems as in the brain, nervous, vascular and immune systems have not been considered. There is little doubt these were significant in shaping the human genome over several million years. Departure from such conditions would be predicted to put populations at risk to disorder and infection, with males being more at risk than females.     

Optimization of the Design and Drying Process Adapted to Pineapple Slices

The present work is a study on the influence of temperature and the velocity of air on the drying kinetics of pineapple slices. The main objective is to define from this drying kinetics rules to help a designer choose an adequate principle or drying configuration and optimize the design of dryers adapted to the use of it. The experiments were made in an electric dryer using a parallel flow system. The air was used at three different temperatures （40, 50 and 60 ~C） and at four different velocities （0.27, 0.5, 1 and 1.8 m/s） during the experiment. The results show that an increase of 10 ℃ of the drying temperature reduced the drying time by 45% and increased the drying velocity by 30%. On the set of air velocities tested, it was noticed that the influence of air velocity on drying was more striking at the beginning than at the end of the drying process （variation of less than 20%）. Whatever the variation of parameters during the drying process, the best performance was observed when the products water content during the drying process was between 50% and 80%.     

The Chinese Textile Machinery Industry:Present Situation and Outlook

Since China joined the WTO,the Chinese textile industry has been experiencing a process of turning itself from a large textile and garment producer into a competitive and powerful player in the world.One of the keys to realize this process is to transform this traditional industry with high technology and increase the technological content and added value of traditional products.The Chinese     

Preparation and uncertainty evaluation of standard samples for testing of dye transfer inhibition in washing北大核心CSCD

As for domestic washing the problem of fabric dye transfer in washing is becoming more and more serious which leads to the decrease of added value of fabrics and affects the aesthetics. With the improvement of people's living standards the demand for fabrics with high color saturation is increasing day by day. However fabrics with high color saturation are often accompanied by problems such as fabric dye transfer in the washing process which has become a pain point in clothing washing. For this reason washing machines at home and abroad are generally equipped with dye transfer inhibition and color protection washing procedures to alleviate the dye transfer phenomenon caused by mixed washing. Jiangnan University and Wuxi Little Swan Electric Co. Ltd. have carried out a series of studies on the formulation of dye transfer inhibition washing standards and the development of standard samples. In order to realize scientific and objective evaluation of dye transfer inhibition performance and solve the problem of lack of standard samples in washing dye transfer inhibition tests white cloth standard samples and red cloth standard samples for washing dye transfer inhibition tests were prepared to simulate light color clothes and dark color clothes in mixed washing. The color depth and water fastness of the prepared standard color cloth are 0. 2% and grade 3 respectively which comply with the provisions of GB / T 12490 - 2014 Textiles—Tests for Colour Fastness—Color Fastness to Domestic and Commercial Laundering. The homogeneity of standard white cloth and standard red cloth were tested by variance analysis the short-term stability test and long-term stability test were carried out for the data with an interval of one month and one year respectively by using the stability test formula. For the whiteness and color difference data tested by seven laboratories in order to analyze the normality of the fixed value data it is necessary to conduct a normality test on the obtained data. For this reason the skewness and kurtosis methods are used to conduct a normality test. The indicators tested include the average standard error standard deviation skewness skewness standard deviation kurtosis and kurtosis standard deviation etc. And Cochrane criterion and Dixon criterion are used to judge whether there are outliers. The indicators tested include statistics low-end outliers and high-end outliers. When calculating the uncertainty the uniformity short-term stability long-term stability and uncertainty introduced in the process of setting are calculated respectively to obtain the combined uncertainty. The results show that the standard white cloth and standard colored cloth have good uniformity and high stability. The combined uncertainty of the standard white cloth is 0. 365 8 and the combined uncertainty of the standard color cloth is 0. 358 0. The uncertainty mainly comes from the uncertainty introduced in the process of value determination. The uncertainty introduced by the uniformity short-term stability and long-term stability has little impact. This paper has prepared the standard sample for washing dye transfer inhibition test and provided the standard sample that is missing in the washing dye transfer inhibition test which is expected to realize the objective evaluation of the dye transfer inhibition performance promote the development of the dye transfer inhibition program carried by the washing machine and realize the scientific evaluation of the washing dye transfer inhibition performance. © 2022 Authors. All rights reserved.     

浆纱压出回潮率与上浆率间的关系

Due to the fact that the relationship between the extrudation moisture regain of sized yarns and size pick-up is expressed only by an approximate equation,and which is not suitable for prewetting sizing process,accurate equations to express the relationships between the extrudation moisture regain of sized yarns and size pick-up for traditional sizing process(including high-pressure sizing) and prewetting sizing are derived.When the prewetting sizing has the same extrudation moisture regain of sized yarns and the same size concentration as the traditional sizing process,prewetting sizing leads to lower size pick-up.The deviation of the extrudation moisture regain obtained by the approximate equation increases with increasing of size concentration.     

鱼糜凝胶性能研究进展(英文)

Surimi is an important element of the aquatic deep processing industry.The gel property of surimi is an key factor for evaluating the character of surimi products.How to improve the gel properties in surimi processing is a focus issue nowadays.This article summarized the formation,influencing factors and ways of enhancing the gelation of surimi.     

Jiangxi Chenming 350,000 t/a High-Grade Food Packaging Paper Project Passed the Energy Assessment

The 350,000 t/a high-grade food packaging paper project of Jiangxi Chenming Paper Co., Ltd. has passed the energy assessment and examination according to the Development and Reform Commission of Jiangxi Province. The project is expected to put into operation in March, 2015     

High Linoleic Acid in the Food Supply Worldwide-What are the Consequences? (英文原文)(Online First, Recommended Article)

The macronutrient composition of food supply in China has altered dramatically in the past 70 years. Fat (oil) has increased more than 4.2-times while the carbohydrate content has declined by 34%. Vegetable oils are the major component of the fat intake and since these oils are rich in linoleic acid, there has been a significant rise in the consumption of this fatty acid (as much as a 4-fold rise). Linoleic acid has essential functions in the body in skin and as a precursor of prostaglandins and related compounds. The current intakes of linoleic acid are well in excess of the minimum requirements. In this review, the effects of a food supply rich in linoleic acid on pain in arthritis and headache, non-alcoholic fatty liver and neural function are explored, with emphasis on lipid mediators derived from linoleic acid and other long chain polyunsaturated fatty acids. The current world food systems have created an imbalance of dietary linoleic acid in relation to n-3 polyunsaturated fatty acids, and an imbalance in the lipid mediators derived from these polyunsaturated fatty acids which may be contributing to sub-optimal health status.     

办公用品结构性调整的思考

The office product industry in China has experienced workshop level, imitation level and digital level. It is a question for the office product industry to think over that how to march on together with time. The article is adapted from foreign successful experience and gives a prediction of the market for the next year. It provides reference for the office product business to make structural adjustment.     

The 900 High Volume Fiber Test System (4)

Colorimeter For over two hundred years color has been considered an important property in cotton evaluation because it influences the value and price of fiber. This colorimeter provides fast,accurate, and objective measurements of cotton color to mills for purchasing raw cotton and for monitoring incoming shipments. The Colorimeter 930 is the lastest in a line of Spin-lab colorimeters that have been used extensively by the United States Department of Agriculture (USDA) for preparation of grade standards which are subsequently distributed to merchants, shippers, and mills all over the world.     

Jiangxi Chenming 350,000 t/a High-Grade Food Packaging Paper Project Passed the Energy Assessment

正The 350,000 t/a high-grade food packaging paper project of Jiangxi Chenming Paper Co.,Ltd.has passed the energy assessment and examination according to the Development and Reform Commission of Jiangxi Province.The project is expected to put into operation in March,2015.     

Micro-printing performance of durable water-repellent black polyester-spandex fabrics without fluorine and silicone resins北大核心CSCD

Synthetic fibers are widely used because of their stable chemical properties high mechanical strength and low cost. Among them polyester has the largest production and is the most widely used and China is also the country with the largest polyester production in the world. With the technological progress of energy saving and emission reduction of liquid disperse dyes the technology of micro printing of polyester and polyester / spandex fabrics has been realized. Based on the high market share of black polyester / spandex printed fabrics and the increasing market demand for functional finishing (e. g. anti-static finishing water repellent finishing UV resistance finishing etc.), it is of great significance to study the process of one-step short processing of polyester printing and functional finishing using carbon-based materials (e. g. carbon black). Carbon black is a gray-black organic pigment with good antistatic and anti-UV properties. It is an eco-friendly advanced material that integrates printing dyeing and functional finishing. To make up for the lack of color depth of carbon black pigment a disperse black dye and carbon black pigment in the same bath preparation scheme are chosen to prepare a functional liquid carbon black @ disperse black dye (CB-D). Not only does CB-D meet the requirements of deep black printing but also it can simultaneously provide water-repellent finishing to the fabric. In this way the application of organic fluorine or organic silicon resin can be dispensed with. A functional liquid CB-D was prepared by pre-dispersion and zirconium oxide grinding method under the action of abrasive agent AL50 (anionic / non-ionic surfactant complex) . The effects of CB-D mass fraction binder type binder D101 mass fraction baking temperature and time on color (L∗ value) rubbing and soaping colorfastness were investigated by optimizing the printing process of liquid CB-D. At the same time the fixation mechanism of CB-D was investigated and the properties of polyester-spandex printed fabrics were tested. The stability of CB-D and the colorfastness of polyester-spandex printed fabrics to hot-wash effluent were investigated by the rate of change of absorbance. The effect of hot-washing on dye floating in the printed area and dye staining in the non-printed area was characterized by the brightness of the printed area L∗ value and the whiteness of the non-printed area (CIE whiteness W10). The properties of CB-D were characterized by scanning electron microscopy and transmission electron microscopy and the antistatic property water repellency air permeability moisture permeability and tensile breaking strength of the fabrics were tested. (i) The first functional liquid CB-D with excellent stability is prepared by grinding carbon black and disperse black dye composed of orange 288 purple 93 and blue 291:3 in the same bath. (ii) A durable fluorine-free and silicone-free water repellent black polyester spandex fabric is prepared reducing the cost of functional finishing and environmental pollution. The preparation of durable water-repellent polyester spandex fabrics without a functional finishing agent is a new technology. CB-D as functional organic melanin with excellent performance and simple processing is a new low-carbon and eco-friendly material and ecological printing and dyeing process. (i) As for the black polyester spandex fabric prepared by a micro-printing process the color fastness of deep black color is not less than grade 4 the white ground is not stained and the color of wastewater is very low. The printing process requires 5% functional CB-D and 8. 5% binder D101. (ii) The black polyester spandex fabric has excellent and durable water repellency air permeability moisture permeability and antistatic property. The water contact angle is 132° anti-static grade is A and the air permeability and moisture permeability are more than 260 mm / s and 2 880 g / (m2h) respectively. After 30 times of home washing it almost keeps the original excellent performance. (iii) The CB-D prepared based on carbon black and disperse black dye is a colloidal aggregate that easily forms continuous carbon black aggregates on the fiber surface showing more excellent porosity film formation and water repellency while maintaining air permeability and moisture permeability. Carbon black is a low-cost material and the liquid CB-D prepared by modifying carbon black with disperse black dye has a new use in preparing functional textiles with good application prospects. © 2022 Authors. All rights reserved.     

Application of meta-analysis in the field of costume studies北大核心CSCD

With the development of the methodology of research review, meta-analysis has been widely applied in the study of various disciplines.However, through literature collection and combing, it is found that the application of meta¬analysis in the field of domestic costume studies is still blank theoretically.To facilitate the extensive use of meta-analysis in domestic integration research on costume theories, and improve the standardization and objectivity of research on costume theories, through an analysis of the basic meaning, functions, advantages, sample selection and research process of meta¬analysis, 52 domestic research papers published from 2(K)7 to 2019 on the relationship between online consume reviews and consumers' purchase intention were taken as examples, to explore the application process of meta-analysis in the field of costume studies in a systematic way and key points thereof.Finally, through literature survey and an analysis of domestic and foreign applications, it is verified that meta-analysis has a good prospect in theoretical studies on costumes in the future. © 2021 China Silk Association. All rights reserved.     

‘FANGHUA’ BRED BY RESPLENDENT JEWELRY.

As a producer, supplier and seller, BFJC‘ s business scope is characterized by a wholesaler and retailer of pearl semifinished and finished products.The company not only has an ample supply of the freshwater pearl but boasts a jewelry designing and processing factory with solid strength.     

Study on the structure and properties of modified silk with ultraviolet absorbent北大核心CSCD

The silk fiber has an irreplaceable position in textile fibers and related silk fabrics have the advantages of light and airy texture good moisture absorption and breathability comfort in wear etc. It is also widely used in other fields such as the biomedical sector. However silk also has its own limitations poor light resistance and susceptibility to ultraviolet light especially the ultraviolet light of 290-400 nm wavelength in daylight such as under which condition it is prone to yellowing and photodegradation. The yellowing of silk is due to the photo-oxidation of tyrosine and tryptophan in silk protein under the action of ultraviolet light from sunlight and due to the production of yellow substances which affects the whiteness of silk. In addition from the molecular structure of silk most of the amino acids susceptible to UV light are distributed in the amorphous region. As the amorphous region is affected the structure of the crystalline region is also gradually relaxed the local degradation begins and the silk protein macromolecule chain is cleaved which leads to the decrease of the mechanical properties of silk fibers and accelerates the aging of silk fibers and fabrics. Therefore it is necessary to modify the silk products outside the anti-purple line. The current methods used to modify silk are mostly for post finishing modification including coating impregnation and chemical grafting methods but these methods often affect the original color or feel of the fabric and the durability of the modified effect is also poor. The feeding method is a green method to obtain modified silk by spraying mulberry leaves or artificial feed mixed with modifier which is ingested by silkworm and transferred to silk gland. In this study five aminobenzene UV absorbers were used as exogenous additive food for silkworms. The effect of molecular polarity on the transport of modifiers to silk glands was investigated and their effects on silkworm development and silk structural properties were studied. It was found that the aminobenzene UV absorbers were more easily transferred to the central silk gland silk glue and less to the posterior silk gland (fibroin). 4-dimethylaminobenzoic acid was found to be the highest in the posterior silk gland with a content of 3. 27 μg / strip. The cocoon width and cocoon quality of this group were significantly lower than those of the control group and the silk gum content was increased when this group was used as the study object. Compared with the control group the relative content of β-folded structure and crystallinity of the silk in the addition feeding group decreased slightly. The silkworm silk in the feeding group showed a certain UV absorption ability. After 330 h UV irradiation the breaking strength and elongation of the control group decreased by 48. 95% and 43. 52% respectively while those of the feeding group decreased by 42. 03% and 34. 18% respectively. In this paper UV absorbers were added to silkworms to obtain modified silk mainly focusing on the transfer of the modifier to the silk gland and the structural properties of the modified silk only for the most UV absorbers to enter the silk gland of the posterior group of silk. Other properties of the modified silk such as washing resistance have not been studied and some more in-depth studies are required. For instance it needs to be studied in depth for the limited absorption of exogenous additives by silkworms additive food's being not always absorbed by silkworms and transferred to the silk gland and the mechanism of action between the additive food and silk protein after the former's entering the silk gland. © 2022 Authors. All rights reserved.     

Chinese Soybean Industry：Current Status and Outlook

This paper focus on the soybean resources and their industry development in China.Due to the high demand in domestic market,it is necessary to expand the cultivation area and improve the production yields.Meanwhile,to increase the export of soybeans from overseas is also important.China has a long history in producing traditional soybean foods.After recent fifty years,the development of Chinese soybean industry has reached to a reasonable level.The current status of Chinese soybean industry has been included in the paper.It has been expected that in next five years,there will be a rapid increase in the processing of soybeans;it will become more reasonable in the scale and distribution of soybean oil factories.Emphasis will be put on the improvement of the functionalities of soybean products.Different kinds of functional soybean foods,especially the soybean proteins for particular uses will be developed by the use of modification technologies.Concern is also given to the multi-utilization of soybean resources,which not only covers the extraction of oil from soybean seeds and the processing of protein products from the meal;but also includes the recovery of the natural phyto-chemicals from soybeans which could then be exploited to novel products with more profits.