Xem 1-20 trên 39 kết quả Straw
  • In this study wheat straw was taken from Ankara province. In order to produce dry process MDF, urea formaldehyde resin was used at the ratio of 8 %, 10 % and 12 %, 1 % ammonium chloride was used as hardening agent on the basis of dry fiber weight. On the other hand, 5, 6 and 7 min. pressing times were applied. Alcohol benzene, cold water, hot water and 1 % NaOH solubility of wheat straw were 5.15 %, 7.31 %, 9.84 % and 40.79 % respectively. In addition, holocellulose, cellulose, lignin and ash contents were found as 74.79 %, 52.67 %, 20.17% and 4.21 % respectively.

    pdf7p thanhtoyz 17-10-2015 16 2   Download

  • In recent years, rice straw open burning (RSOB) activity has commonly occurred after the harvest in the countryside of Hanoi. This activity has caused negative impacts on air quality, especially it emits a large amount of black carbon (BC), a short lived climate pollutant (SLCP). As the other SLCPs , BC directly affects human health and ecosystem. This paper presents the results of measured BC concentrations in RSOB season in Lai Yen commune, Hoai Duc district in Hanoi.

    pdf6p nguyenvanhoangvnu 12-06-2017 3 1   Download

  • THE STRAW, THE COAL, AND THE BEAN-GRIMM’S FAIRY TALES Một trong những bộ truyện cổ nổi tiếng nhất thế giới đã được dịch ra nhiều thứ tiếng là Truyện cổ Grimm. Sau đây là những câu truyện cổ ấy nhưng với nguyên bản bằng tiếng anh nhằm giúp các bạn nhỏ vừa học ngoại ngữ vừa tiếp xúc với thế giới thần tiên .

    pdf6p kute_lily 22-07-2010 80 27   Download

  • SHORT STORY BY O’HENRY Sociology In Serge And Straw Đây là một serries truyện ngắn anh ngữ nổi tiếng với những từ vựng quen thuộc. Nhằm giúp các em và các bạn yêu thich tiếng anh luyện tập và củng cố thêm kỹ năng đọc tiếng anh

    pdf12p blacktulip 01-09-2010 79 27   Download

  • A cock was once strutting up and down the farmyard among the hens when suddenly he espied something shinning amid the straw. ‘Ho! ho!’ quoth he, ‘that’s for me,’ and soon rooted it out from beneath the straw. What did it turn out to be but a Pearl that by some chance had been lost in the yard? ‘You may be a treasure,’ quoth Master Cock, ‘to men that prize you, but for me I would rather have a single barley-corn than a peck of pearls.’ Precious things are for those that can prize them. ...

    pdf93p rosesdalat2803 07-07-2009 65 8   Download

  • The main objective of this work is to develop an economically viable process for producing papermaking fibres of adequate quality and generating energy from wheat straw. Wheat straw was selected as the raw material since wheat is cultivated and available worldwide (Curtis 2002) and only a minor part of the straw is used for energy production or animal feed. One of the primary aims in this work is to find ways to store the raw material chemically between the harvesting periods and examine the effects on pulping and pulp properties (Paper IV). In addition, the aim of this work is...

    pdf145p loixinloi 08-05-2013 29 6   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: A mutated xylose reductase increases bioethanol production more than a glucose/xylose facilitator in simultaneous fermentation and co-fermentation of wheat straw

    pdf8p dauphong13 09-02-2012 24 5   Download

  • Two approaches were selected for the study, both of which were based on an initial hot water treatment: the “chemical” where bleached pulp is produced for printing and writing papers by hot water treatment and the following alkaline peroxide bleaching (Paper II–IV) and the “mechanical” where the unbleached material from the hot water treatment stage is mechanically refined (Paper II, V) to produce fibres for packaging grade papers. In the future, the straw fibre could be considered as a raw material for biocomposites.

    pdf55p loixinloi 08-05-2013 27 5   Download

  • Tuyển tập báo cáo nghiên cứu khoa học của trường đại học nông nghiệp 1 đề tài: Effects of treatment of fresh rice straw on its nutritional characteristics...

    pdf7p thulanh2 07-09-2011 26 2   Download

  • Tuyển tập các báo cáo nghiên cứu về bệnh thú y được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành thú y đề tài: No Peri- and Postnatal Effects on Calves Born After Transfer of in Vitro Produced Embryos Vitrified by the Open Pulled Straw (OPS) Method...

    pdf9p hoami_2511 21-10-2011 31 2   Download

  • Cellulose and wheat straw degradation byRuminococcus albuswas moni-tored using NMR spectroscopy. In situ solid-state 13 C-cross-polarization magic angle spinning NMR was used to monitor the modification of the composition and structure of cellulose and 13 C-enriched wheat straw during the growth of the bacterium on these substrates.

    pdf9p galaxyss3 07-03-2013 13 2   Download

  • (BQ) Ever accidentally used your thumb as a hammer cushion while partaking in a spot of DIY? Do you become enraged at the uncontrollable bobbing of the straw in your aluminum can? Are you yearning to find a way to make your toilet paper roll tube enhance your music listening experience? These and dozens of other everyday dilemmas are solved with Life Hacks, your handy guide to tackling little annoyances before they turn into big problems.

    pdf169p thuyfrozen 08-07-2015 59 17   Download

  • Vị trí phân loại và hình thái: Nấm rơm Tên khoa học: Volvariella volvacea Tên tiếng Anh: Paddy straw mushroom Tên khác: Nấm rạ, nấm đen, thảo cô, nấm trứng,....

    pdf7p sunshine_1 26-06-2013 45 10   Download

  • Thí nghiệm 1 được bố trí theo thể thức hoàn toàn ngẫu nhiên với 8 nghiệm thức (NT) với nguồn vi sinh vật là phân trâu và 3 lần lặp lại. Các nghiệm thức: rơm tươi (RT), RT+hỗn hợp urê-mật đường và khoáng (RT+HH), RT ủ với 5% urê trong 21 ngày (RTUU), RTUU+hỗn hợp urê-mật đường và khoáng (RTUU+HH), rơm khô (RK), RK+hỗn hợp urê-mật đường và khoáng (RK+HH), RK ủ với 5% urê trong 21 ngày (RKUU), RKUU+hỗn hợp urê-mật đường và khoáng (RKUU+HH).

    pdf9p sunshine_9 24-07-2013 35 7   Download

  • Farm mechanization helps in effective utilization of inputs to increase the productivity of land and labour. Besides it helps in reducing the drudgery in farm operations. The early agricultural mechanization in India was greatly influenced by the technological development in England. Irrigation pumps, tillage equipment, chaff cutters, tractors and threshers were gradually introduced for farm mechanization.

    pdf21p doiroimavanchuadc 06-02-2013 25 6   Download

  • Manufacturing was what I had always done and it was fading fast. The numbers of time-served manufacturing professional compared to the decreasing numbers of vacancies made it a daunting prospect. It did mean, though, that you had to be good to succeed. But when supply far out-strips demand, the currency becomes devalued. Even the highest quality items become a commodity and prices fall dramatically. Although I was still winning through, my final sojourn at British Steel was the last straw. I had the choice of either re-training or going it alone. For the quality of life, the autonomy and...

    pdf6p anhheomap 13-12-2010 49 5   Download

  • Nam Dinh. is a big agricultural province in Red River delta of North Vietnam, where were planted three main agricultural products: rice, corn, peanut. By case-study investigation and energy analysis, the report put out detail information on biomass energy of rice straw, rice husk, com straw, corn core, peanut straw and total biomass energy from agricultural wastes in Nam Dinh province. According to investigation data, yearly the total agricultural wastes in Nam Dinh province is more than 1l million tons.

    pdf8p dem_thanh 22-12-2012 31 5   Download

  • One of the characteristics of non-wood fibres is the much wider range of fibre lengths in different species (Atchison 1987). Many of these fibres, such as straws, reeds and bagasse, are similar in length to the short fibre hardwoods. On the other hand, others such as flax and hemp are so long that they have to be shortened prior to papermaking (Atchison 1987). From a quality point of view, any grade of paper can be produced by the combination of different non-wood plant fibres (Atchison & McGovern 1987). For instance, flax has a very long fibre length and...

    pdf176p loixinloi 08-05-2013 19 5   Download

  • The spring wheat straws used in the experiments were cultivated in Jokioinen, Finland, in summer 2006 (06Straw), 2007 (07Straw) and 2008 (08Straw). The wheat varieties were Kruunu in 2006, Marble in 2007 and Kruunu in 2008. The wheat was grown on a sandy clay field in Jokioinen, Finland (60°49'12"N, 23°28'12"E). The 06straw was used in the hot water treatment temperature optimisation and the 07straw in the mechanical refining experiments. 06Straw and 07Straw were used in the optimisation of alkaline peroxide bleaching.

    pdf25p loixinloi 08-05-2013 22 5   Download

  • The bleached pulps were screened prior to sheet preparation. All analyses were performed according to ISO and SCAN standards, except for the carbohydrate analysis of straw which was done by high-performance anion-exchange chromatography (HPAEC). The ashing was conducted at 550°C for 12 h. The mechanically refined pulp after hot water treatment was fractioned with a Bauer McNett apparatus. The paper technical properties were determined from the combined 100 and 200 mesh fractions.

    pdf156p loixinloi 08-05-2013 35 5   Download


Đồng bộ tài khoản