数字化色标的析色与提色初探

数字化色标是数字色彩的一种应用形式,在数字化色标中存在着析色、提色的问题。析色是指对色彩的分析研究,涉及到数字色彩的编程、组合、对比、纯度等问题。提色是指对色彩的提取。在提色中要坚持归纳、概括的原则,具体方法有直接提色法、间接提色法、概括提色法、排除提色法、归纳提色法等。

数字化色标的析色与提色初探

数字化色标是数字色彩的一种应用形式。在数字化色标中,存在着析色、提色的问题。析色,是指对色彩的分析研究,涉及到数字色彩的编程、组合、对比、纯度等问题。提色,是指对色彩的提取。在提色中要坚持归纳,概括的原则,具体方法有直接提色法、间接提色法、概括提色法、排除提色法、归纳提色法等。

葡萄酒提色新科技

随着我国现今葡萄酒市场的发展到了白热化阶段,在酿造方面,操作简便和自动化的工艺流程已成为新趋势。针刈这个趋势及传统的葡萄浸提工艺,TMCI Padovan公司设计了特别的红葡萄热浸提系统,即通过对红葡萄加热,连续提取颜色的工艺技术。

3个色买提杏品系果实采收特征及差异的研究

色买提杏Armeniaca vulgaris‘Saimaiti’是新疆栽培果树中的重要品种,为了明确不同品系色买提杏果实采收特征及其差异,研究以3个常见色买提杏品系的果实为研究材料,分别测定果实形态特征、硬度、可溶性固形物、pH、色度(LAB)等指标,并对其进行核密度、相关性分析。结果表明:3个品系果实特征差异显著,果实直径、纵径、侧径、单果重均显示克孜勒色买提<色勒克色买提<木格亚格勒克。可溶性固形物是重要采收标志,分别为克孜勒色买提(14%~15%)、色勒克色买提(18%~20%)、木格亚格勒克(18%~23%)。硬度分化不明显,集中分布于21-30。L值表现为克孜勒色买提杏(58.30)>色勒克色买提杏(56.27)>木格亚格勒克(52.61),A值表现为木格亚格勒克(14.60)>克孜勒色买提(13.47)>色勒克色买提(11.52),B值的分布范围在39.82~46.20。综上所述,不同品系的杏果实采收特征差异明显,克孜勒色买提杏果实的品质相对较差。

硼和赤霉素对提高色买提杏座果率和果实品质的初步研究

试验在色买提杏花蕾膨大期喷施(0.1%、0.3%、0.5%)硼和盛花期喷施(50、100和150 mg/L)赤霉素,结果表明:硼、赤霉素均可显著提高色买提杏的座果率,其中硼以0.1%的浓度最好,赤霉素以100 mg/L的浓度最好;硼、赤霉素还能明显提高色买提杏果实品质,果实可溶性固形物和硬度均与对照差异显著,赤霉素对单果重、果形指数、侧径有明显的增大趋势,而硼的作用不明显,这与它们不同的作用机理有重要的关系。

红富士苹果促糖增色提品栽培技术应用

随着市场经济的快速发展,人们的生活经济水平随之提升,对于农产品的质量要求也随之上升。在我国的农产品市场之上,苹果作为一种常见的水果消费品经常出现在人们市场之中,具有良好的耐储藏、耐运输性,在我国的种植面积也十分广阔。为了有效的提升红富士苹果的糖度以及果面着色效果,确保红富士苹果的果品质量,从而实现种植户的苹果种植收益。本文将结合红富士苹果种植管理中增糖提色技术的应用进行科学分析,希望可以起到参考效果。

ETC系统中的车辆定位识别技术研究

对于车辆的定位识别技术,本文首先对车辆进行定位,采用了车侧的边缘检测和提色块法,对车辆在整张图片中的位置进行定位。所做的工作如下:将摄像头拍摄的图像转化为灰度图,使用提色块法,提取车辆的颜色。主要目的是去掉车辆的阴影部分,提取出车辆的真实图像范围。

Study on Anthocyanidin Extraction from Flower of Rhododendron L. and Its Stability

[Objective] The aim of this study was to further investigate and utilize the natural anthocyanidin from Rhododendron L. [Method] Using Rhododendron L. with four different colors including white, pink, red and purple as the test materials, its anthocyanidin extraction methods were analyzed in this study to evaluate the spectral properties and its stability of various anthocyanidin. [Result] The anthocyanidin from Rhododendron L. was perfectly extracted by methanol with 1% concentrated hydrochloric acid (V/V) and had better stability in this extraction solution. The further experiment in vitro indicated that the anthocyanidin from Rhododendron L. became stable with pH value of 0-3, but could not resistant to high temperature or strong light, and the alkaline condition had also great effects on its stability. [Conclusion] The methanol with 1% concentrated hydrochloric acid (V/V) has the best effect for extraction, and the anthocyanidin from Rhododendron L. is more stable in low temperature, weak light and acid conditions.

清代天山南路穆斯林社会民事纠纷的审理——以色提巴尔第家人遗产纠纷案为中心

色提巴尔第是清代维吾尔族著名人物,因功晋封贝子品级辅国公。色提巴尔第死后,嘉庆二十三年(1818),其家人因财产继承与分配问题产生纷争,争执双方对簿公堂,引起清廷的重视。清代档案中留下有关这一案件的材料,对于研究清代天山南路穆斯林社会民事纠纷,特别是遗产分配的原则、纠纷处理的方法与程序等,提供了重要的依据。本文依据档案材料并结合清代地方文献,对该案件审理过程及相关问题进行研究,论述清代天山南路地区穆斯林社会的婚姻家庭伦理、财产关系及民事纠纷的调处,对穆斯林习惯法与大清律的关系也作了探讨。

Ultrasonic Assisted Extraction of Anthocyanins from Strawberry

This study aimed to explore the main factors influencing the extraction of anthocyanins from strawberry, such as solid-liquid ratio, concentration of solvent, duration of ultrasonic treatment and ultrasonic power. According to the results of sin-gle factor test, an orthogonal experiment was designed to determine the optimum extraction conditions. The effects of the four factors on anthocyanins extraction from strawberry were listed here in an decreasing order： ethanol concentration 〉 solid-liq-uid ratio〉duration of ultrasonic treatment〉ultrasonic power. And the optimal condi-tions of ultrasonic extraction of anthocyanins from strawberry were： ultrasonic treat-ment of 30 min, solid-liquid ratio of 1：15, ethanol concentration of 60% and ultra-sonic power of 300 W. Under such conditions, the content of extracted antho-cyanins was 33.247 mg/100g, which was 1.3 folds higher than that by extraction without ultrasonic treatment.

5种药剂对杨梦尼夜蛾的防治效果比较试验

采用常规喷雾法,比较了1.9%甲维盐等5种药剂对杨梦尼夜蛾的防治效果。结果表明,1.9%甲维盐乳油2000倍液、44%氯氰丙溴磷乳油1500倍液在药后48小时虫口减退率均达到100%;20%灭幼脲3号悬浮剂800倍液、5%吡虫啉乳油2000倍液、5%氟啶脲乳油2000倍液在药后第7天虫口减退率分别达到83.33%、81.82%和75%。

Determination of contents of 10-Hydroxycamptothecin in Camptotheca acuminata by high-performance liquid chromatogram

The determination method of 10-hydroxycamptothecin in Camptotheca acuminata fruits by high-performance liquid chromatogram (HPLC) was studied. The HPLC analysis was performed on a HIQ sil C18(4.6×250 mm) column with mobile phase of acetonitrilewater (3:7, V:V), flow rate 1 mLmin-1 and UV detective wavelength 266 nm. Extracting 10-hydroxycamptothecin by ultrasonic method from fruits of C. acuminata to prepare samples for analysis was systematically discussed. The optimal extraction condition was carried out by 60% alcohol solution at 60℃ for 50 minutes.

Study on Chironomid Larvae Recognition Based on DWT and Improved KNN

A chironomid larvae images recognition method based on wavelet energy feature and improved KNN is developed. Wavelet decomposition and color information entropy are selected to construct vectors for KNN that is used to classify of the images. The distance function is modified according to the weight determined by the correlation degree between feature and class, which effectively improves classification accuracy. The result shows the mean accuracy of classification rate is up to 95.41% for freshwater plankton images, such as chironomid larvae, cyclops and harpacticoida.

英吉沙县芒辛乡集体经济现状分析

通过实地调研,在掌握芒辛乡村级集体经济基础上,从畜牧养殖及特色经济两个角度,确定6村、10村及12村为典型村。基于这一前提,首先,阐述了芒辛乡及典型村的集体经济现状;其次,通过分析确定芒辛乡及典型村发展集体经济的突破口,为后续研究确定方向及重点。

Efficient Green Modern Agriculture of Fenlong Cultivation and Its Application Prospects

Based on the evolution of farming revolution in Fengyan aiming to create a healthier and more beautiful human existence and a harmonious coexistence with nature, this study introduced Fenlong green agriculture, which had the characteristics of natural yield increase of more than 10% with zero fertilization, and yield increase of 10%-30%, quality improvement of 5% and doubled land water holding capacity with the conventional fertilization in over 20 crops in more than 20 provinces, and significant reforming efficiency on salinized land and grassland; for the first time made a comprehensive description of high efficient application of Fenlong green modern agriculture to explore natural resources, realizing the sustainable develop- ment of quality improvement, yield increase and efficiency enhancement; for the first time clarified the scientific basis and theoretical system of the green efficient mod- ern agricultural technique-Fenlong cultivation, as well as the basic connotations and concepts of Fenlong cultivation, green efficient modern agricultural technical system; created a new model of efficient modern agricultural production and new technology system, and 6 major technical projects like cultivated land improvement to increase yield and transformation of salinized land and grassland, which could play a role in relieving the climatic disasters like haze, transformation of farmland with medium to low yield as well as the construction of high standard farmland, sucrose industry and ＂One Road One Belt＂ strategy; for the first time proposed Fenlong cultivation as the ＂China technology card＂ in China and even the whole world, so as to make people understand the particular significance of this technology to green develop- ment, which could benefit the future generations.

Organic acids and inorganic anions in Bayer liquors by ion chromatography after solid-phase extraction

A method for the simultaneous separation and determination of organic acids and inorganic anions in Bayer liquors was developed by gradient ion chromatography with suppressed conductivity detection. Formate, acetate, propionate, oxalate, succinate, glutarate, fluoride, chloride and sulfate were separated and determined in 33 min. The samples were pretreated with solid-phase extraction, which has high selectivity for removing a large number of metallic ions in the Bayer liquors, and filtered with a 0.45 μm filter membrane before being injected into the ion chromatographic system. The separation of six organic acids and three inorganic anions was achieved on an IonPac AS11-HC column with KOH as the eluent, and the detection was performed by a conductivity detection mode. No interference is found in the presence of fluorate, chlorate and sulphate when organic acids are determined. The calibration graphs of peak area for all the analytes are linear over a wide range. The relative standard derivation of the peak area of analytes is less than 2.14%. Under optimum conditions the detection ranges from 0.2 to 100.0 mg/L. The average recoveries of the added standards are between 94.3% and 102.8%.

Experiments on decolourization with 122-resin for extraction of gib-berellins from solid medium under different conditions

The extracting liquid of gibberellins (Gibberella fujikuroi) from solid medium for was decolorized separately with 75%, 95% alcohol, and distilled water in static adsorption and vibrating way for different durations. The results showed that the content of GA3 in efflux extracted with alcohol is 10% higher than that with distilled water. With the increase of the durations of extraction, the content of GA3 increases and the dissolution of pigments also increase. For extraction of GA3 cultured in solid medium, the best decolorizing result was obtained when it was extracted with 75%-95% alcohol in static way for 1-3 h, or in a vibrating way for 30-60 min, and then to decolor in a static way for 30-60 min in 122 resin column.

The extraction of pigments from fresh Laminaria japonica

The pigments in Laminaria japonica was extracted with six organic solvents and analyzed in spectroscopy analysis. The extractions conditions were screened by an orthogonal test and the quantity of extracted pigments was determined spectroscopically. The results show that: (1) among the six organic solvents, acetone was the most effective one for the extraction; (2) the optimum extraction conditions were as follows: the ratio of S/M (solvent volume/material weight) was 30 ml/g; fresh seaweed was extracted 2 times in 2h; (3) the average total content of pigments was 1.85 mg/g (calculated with dry L. japonica).

CS_2 extraction and FTIR & GC/MS analysis of a Chinese brown coal

The abundance of low-rank coals in China, such as bituminous and brown coals, makes studies of their composition and structure of great significance to both coal chemistry research and for efficient utilization of the coal. We describe how a Chinese brown coal was ultrasonically extracted with carbon disulfide （CS2） and the raw and extracted coals were characterized by Fourier Transform Infrared Spectroscopy （FTIR）. The corresponding extract was analyzed with a coupled gas chromatograph mass spectrometer （GC/MS）. The FTIR analysis shows a great abundance of amidocyanogen, carbonyl, aromatic and hetero aromatic rings and single carbon-beteroatom bonds. This suggests the possible occurrence of compounds like alcohols, phenols, amines, esters, carboxylic acids, ethers, aromatics or heteroaromatics. The GC/MS analysis of the CS2 extract detected 62 compounds, among which the non-polar ones were of lower abundance while the polar ones were in higher abundance and were structurally diverse. This demonstrates the compositional and structural complexity of Shengli coal.

Production of Aflatoxins from Aspergillus flavus in Liquid Medium

Aflatoxins are produced mainly by Aspergillus flavus and Aspergillus parasiticus, and can be found in many grains such as peanuts, soybeans and com. This study aimed to qualitatively and quantitatively evaluate the production of aflatoxin in liquid media using strains of Aspergillus flavus obtained from peanuts marketed in the city of Fortaleza, CEo Strains of Aspergillus flavus were inoculated into a liquid medium malt extract and after 2 days inoculated into a second medium containing sucrose 5%, MgSO4·7H20 0.1%, KH2PO4 1%, ZnSO4·7H2O 0.0176 g, and cultured for 3 more days. The media were kept at room temperature ranging from 24°C to 32 °C with agitation of 130 rpm and aeration of 4.17 Llmin. Qualitative analysis was performed by thin layer chromatography and quantitatively by high performance liquid chromatography with fluorescence detection, demonstrating the production of aflatoxin B I （588 mg/L） and B2 （929 mg/L）.