生产优质生奶的技术途径

优质生奶是保证乳品质量的前提和关键。改善牛舍环境、控制奶牛乳房炎以及应用优质挤奶设备、规范挤奶程序、妥善保存生奶是进行优质生奶生产的主要技术途径。

地理优质生培养的几点想法

地理优质生的培养之法,我主要从五方面谈如何培养,一是小干预,促塑造。在日常学习中,老师的一些精准小干预,对优质生的成长可谓是点睛之笔。二是大引导,促强大。从精神和学科思想上引导,为尖子生加油助力。三是知识结构化、训练综合化,从而夯实基础,提升学生能力。四是师生携手,共同成长。五是做一个有温度的地理人,激发学生学习的兴趣。

早生优质绿茶新品种选育

对中茶108(原辐Ⅱ)等6个新品系和中茶102等4个品种分别进行了品比试验和区域试验。品比试验结果表明,新品系中茶108为特早生品系,氨基酸含量高达4.53％,适制绿茶,品质优良,产量比对照福鼎大白茶高67.23％。区域试验结果表明,中茶102为早生品种,氨基酸含量4.46％,适制绿茶,品质优良,产量比对照迎霜高21.68％,生长势旺盛,抗性强。

早生优质茶树新品种桂职1号品比试验研究

[目的]为桂职1号的大面积推广应用提供理论和实践依据.[方法]以福鼎大白（华茶1号）为母本、上林安塘种为父本杂交后代（F1代）群体中选育所得的无性繁殖系,育成特早生、优质、高产茶树新品种桂职1号.2010 ～ 2013年采用随机排列对比法设计品比试验,对该品系的植株性状、成活率、发芽密度、春季芽萌发期、鲜叶产量、制茶品质、生化成分和抗性等进行鉴定比较.[结果]桂职1号春季萌发期比福鼎大白（CK）提早10 d以上,产量与品质都超过福鼎大白.春茶和秋茶占全年总产量近60％;制成绿茶外形紧结显翠,夏茶没有其他品种茶的苦涩味,非常适合制成绿茶;水浸出物、茶多酚和咖啡碱含量比福鼎大白低,氨基酸含量虽比福鼎大白低,但仍处于较高水平,香气和滋味比福鼎大白好;抗逆性、抗病虫害都强于福鼎大白.[结论]桂职1号在广西多点种植表现良好,值得大面积推广.

早生优质茶树新品种——中茶601

中茶601是从龙井43茶园中发现的变异单株中经单株选拔—扦插扩繁—品比试验—区域试验系统选育而成的适制绿茶新品种。品比和区域试验结果表明,中茶601属早生种,产量较高;制烘青绿茶,外形细紧、绿润鲜活,汤色绿亮,香气清鲜带花香,滋味醇和甘鲜,叶底细嫩匀齐;春季第一轮一芽二叶3年平均含茶多酚16.9%、氨基酸4.1%、咖啡碱3.0%、儿茶素10.8%、水浸出物45.4%;抗寒性较强,耐旱性中等;适宜在浙江、湖北和安徽及气候相似地区种植。中茶601于2020年通过农业农村部非主要农作物新品种登记,登记编号:GPD茶树(2020)330024。

早生优质茶树新品种--浙农902

浙农902是从鸠坑种种子后代中经单株选拔—扦插扩繁—品比试验—区域试验系统选育而成的适制绿茶新品种。品比和区域试验结果表明,浙农902属于早生种,产量高;制烘青绿茶外形细紧、卷曲、有毫、绿翠,汤色浅嫩黄、明亮,香气清高,滋味尚浓醇、较甘,叶底较细嫩、多芽、绿明亮。春季一芽二叶含茶多酚15.4%、氨基酸8.0%、咖啡碱3.5%、儿茶素类10.4%、水浸出物44.9%。抗寒、抗旱性强,高抗炭疽病,感茶小绿叶蝉。适宜在重庆、贵州、四川、湖南及气候相似地区种植。机采芽叶完整度高。浙农902于2020年通过农业农村部非主要农作物新品种登记,登记编号:GPD茶树(2020)330039。

早生优质茶树新品种——浙农901

浙农901是从鸠坑种种子后代中经单株选拔—扦插扩繁—品比试验—区域试验系统选育而成的适制绿茶新品种。品比和区域试验结果表明,浙农901属于早生种,产量高;制烘青绿茶外形紧结、卷曲、有锋苗、深绿带翠,汤色嫩绿明亮,香气清高,滋味鲜醇,叶底嫩、有芽、匀齐、嫩绿明亮;春季一芽二叶烘青样含茶多酚14.4%、氨基酸8.5%、咖啡碱3.4%、儿茶素类9.68%、水浸出物48.8%。抗寒、抗旱性强。适宜在重庆、贵州、四川、湖南及气候相似地区种植。浙农901于2020年通过农业农村部非主要农作物新品种登记,登记编号:GPD茶树(2020)330038。

红绿兼制型早生优质茶树新品种——中茶603

中茶603是从四川中小叶种群体后代中经单株选拔—扦插扩繁—品比试验系统选育而成的红绿兼制型茶树新品种。试验结果表明,中茶603属早生种,产量较高;适制绿茶、红茶,春季制烘青绿茶,外形肥嫩披毫嫩绿鲜润,汤色嫩绿明亮,香气清高鲜爽有花香,滋味醇和甘鲜,叶底嫩、匀齐、多芽、嫩绿明亮。夏秋季制工夫红茶,外形较紧结、显金毫、乌褐,汤色较红、较明亮,香气鲜甜、花香显,滋味较醇厚、较甘、较鲜爽。春季第一轮一芽二叶2年平均含茶多酚17.3%,氨基酸4.6%,咖啡碱3.5%,儿茶素10.6%,水浸出物48.5%。抗寒性较强,抗旱性强,高抗炭疽病,高感小绿叶蝉。适宜在浙江及气候相似地区种植。中茶603于2020年通过农业农村部非主要农作物新品种登记,登记编号:GPD茶树(2020)330026。

早生高香优质绿茶新品种——中茗66号

中茗66号是从杭州西湖龙井群体种中经过单株选拔、扦插扩繁和性状鉴定,选育出的优质绿茶品种。试验结果表明,中茗66号属特早生种,产量较高;制作的烘青茶样外形细紧、卷曲、显毫、嫩绿带翠较鲜活,汤色较嫩绿明亮,香气清高、鲜爽、花香显、毫香显,滋味尚浓醇、鲜爽,叶底细嫩、匀齐、有芽、绿明。春季第一轮一芽二叶含茶多酚18.1%、氨基酸5.1%、咖啡碱3.3%、水浸出物46.0%;抗炭疽病,感小绿叶蝉;适宜在杭州及气候相似地区种植。中茗66号于2021年通过农业农村部非主要农作物新品种登记,登记编号:GPD茶树(2021)330005。

早生优质茶树新品种--中茶602

中茶602是从云台山群体种后代中经单株选拔—扦插扩繁—品比试验—区域试验系统选育而成的适制绿茶新品种。品比和区域试验结果表明,中茶602属早生种,产量较高;制烘青绿茶外形细紧、披毫、嫩绿鲜润,汤色浅嫩绿、较清澈明亮,香气嫩(栗)香持久,滋味甘鲜嫩爽,叶底多芽、匀齐、嫩绿明亮。春季第一轮一芽二叶2年平均含茶多酚18.0%、氨基酸4.2%、咖啡碱3.5%、儿茶素12.4%、水浸出物48.2%。抗寒、抗旱性较强。适宜在重庆、贵州、四川、湖南及气候相似地区种植。中茶602于2020年通过农业农村部非主要农作物新品种登记,登记编号:GPD茶树(2020)330025。

早生优质绿茶新品系选育研究

以选育、推广早生、优质适制名优绿茶的新品种为目标,采用单株选育法从福鼎大白茶有性系群体种中选育出优良单株,通过开展品比试验鉴定和评价7个新品系的农艺性状、营养芽物候期、产量、品质和抗逆性。结果表明,7个新品系生长势旺盛,抗逆性强。新品系18号、67号为早生品系,氨基酸含量4.25%和3.80%,制作的绿茶品质优良,产量分别比对照福鼎大白茶高7.00%和42.01%,综合表现好,是很有发展潜力的早生、优质、高产的新品系。

径山茶专用品种的选育

径山茶是余杭区历史文化名茶,凭借其优异的品质、规范的管理和深厚的文化底蕴,成为名副其实的余杭区农产品"金名片"。为进一步提高径山茶的茶叶品质,强化径山茶的品牌建设,通过单株筛选的方法,历时5 a从径山山顶的鸠坑种茶园中选育2个适制径山茶的新品系径山1号和径山2号,2个新品系抗逆性强,扦插成活率高,有望成为下一代径山茶的主栽品种。

Structure Parameters and Physiological Indices Research of High-quality and High-yield Apple Orchards

In order to research environment parameters and physiological indices of high-quality and high-yield apple trees, two orchards with young and mature apples trees were investigated to explore structural parameter of apple tree and community, and some physiological indices in fields and by room measurements. The results showed that tree height of high-quality orchard was in the range of 260 to 290 cm, branch angle in 70°-75°, and orchard coverage rate in 75%-94%, and the connec-tion rates between rows and trees were lower. Furthermore, the total branches of mature orchard reached 1.04 ×106 per hm2, while the young orchard was 8.79 ×105 per hm2; the leaves were thick and chlorophyl content was high, with SPAD value at 58.22. Additional y, the photosynthesis of the orchard was strong, and net photo-synthetic rate was 17.48-21.8 μmolCO2/（m2·s）. The proportions of lateral shoot of bearing part were 81% and 75% respectively.

凌源市第二高级中学

志存高远自强不息凌源市第二高级中学位于凌源市红山路,始建于1972年,学校占地面积近5万平方米,现有63个教学班,在校学生3351人,教职工320人。学校办学规范,管理科学,校风优良,富有特色。建校以来,学校历届领导班子带领广大教职员工凝心聚力,共谋发展,始终重视素质教育,坚持特色办学,走出了一条科技强校的办学之路,为学校的可持续发展奠定了坚实基础。学校先后荣获"全国技术教育创新人才培养计划实验室项目学校""全国重点大学暨211工程大学生源基地""沈阳航空航天大学优质生源基地""

Medium optimization for enhanced production of cytosine-substituted mildiomycin analogue (MIL-C) by Streptoverticillium rimofaciens ZJU 5119

Cytosine-substituted mildiomycin analogue （MIL-C） was produced effectively by supplementing cytosine into the culture of Streptoverticillium rimofaciens. In order to improve the yield of MIL-C, statistically-based experimental designs were applied to optimize the fermentation medium for S. rimofaciens ZJU 5119. Fifteen culture conditions were examined for their significances on MIL-C production using Plackett-Burman design. The Plackett-Burrnan design and one-variable-at-a-time design indicated that glucose and rice meal as the complex carbon sources, and peanut cake meal and NH4NO3 as the complex nitrogen sources were beneficial for MIL-C production in S. rimofaciens ZJU 5119. The results of further central composition design （CCD） showed that the optimal concentration of glucose, rice meal and peanut cake meal were 18.7 g/L, 64.8 g/L and 65.1 g/L, respectively. By using this optimal fermentation medium, the MIL-C concentration was increased up to 1336.5 mg/L, an approximate 3.8-fold improvement over the previous concentration （350.0 mg/L） with un-optimized medium. This work will be very helpful to the large-scale production of MIL-C in the future.

Emerging treatments for complex perianal fistula in Crohn's disease

Complex perianal fistulas have a negative impact on the quality of life of sufferers and should be treated.Correct diagnosis,characterization and classification of the fistulas are essential to optimize treatment.Nevertheless, in the case of patients whose fistulas are associated with Crohn's disease,complete closure is particularly difficult to achieve.Systemic medical treatments(antibiotics, thiopurines and other immunomodulatory agents,and, more recently,anti-tumor necrosis factor-αagents such as infliximab)have been tried with varying degrees of success.Combined medical(including infliximab)and less aggressive surgical therapy(drainage and seton placement)offer the best outcomes in complex Crohn's fistulas while more aggressive surgical procedures such as fistulotomy or fistulectomy may increase the risk of incontinence.This review will focus on emerging novel treatments for perianal disease in Crohn's patients. These include locally applied infliximab or tacrolimus, fistula plugs,instillation of fibrin glue and the use of adult expanded adipose-derived stem cell injection.More welldesigned controlled studies are required to confirm the effectiveness of these emerging treatments.

无性系良种茶园的建立及管理

为适应茶叶市场对名优茶需求的不断增长,近年我县积极推广应用早生优质高产的无性系良种,发展新茶园,加快了茶树良种化的进程。 一、无性系良种茶园的建立 茶树是多年生经济作物,建园基础好是实现早产、高产优质的关键。因此,首先必须提高建园质量,掌握好引种与栽植技术。 1.选择有利环境,建立高标准茶园 茶树具有喜温、喜湿、耐阴、趋酸的特性,在温和湿润、云雾多、漫射光丰富的气候条件下,

Practical significance research of elegant campus culture improving the quality of cultivating university students

We should adhere to the socialist orientation construction of elegant campus culture and socialistic common ideal with Chinese characteristics. Whether a country is prosperous or not lies in if it can adhere to correct development direction. Socialistic common ideal with Chinese characteristics is our dream and pursuit for the nation＇ s glorious development prospects. University campus construction is a basic work for teaching and developing, in the mean time, it is also a systematic creative work. Campus construction set the systematic goal of being in favor of cultivating university students. It should not only have a good using function to meet material needs in the working and living aspects of teachers and students, but also to create a high level and high style campus environment, reflecting the university spirit and culture, improving university elegant taste. Strengthening campus culture construction has vital theoretical and practical significance for improving the quality of personnel training, building elegant campus culture and enhancing core competitiveness of universities.

Programming a Parametric Design Algorithm to Improve Manufacturing Processes＇ Efficiency： The Case Study of Glued-Laminated Timber

In the last decade, parametric and generative design techniques become quite popular for form-finding strategies or for pushing automation in design processes. Nevertheless, these techniques could be applied in engineering processes as well in order to improve the effectiveness and the efficiency of manufacturing processes in BI （building industry）. Focusing on the case study of GLT （glued-laminated timber）, this paper shows the procedure of programming a parametric algorithm adopted by authors that pursues two specific design intents： reducing the usage of unneeded high-quality raw material and improving the efficiency of production processes by producing DF （digital fabrication） contents for standard production systems of GLT. According to different European and international standards, thanks to FEM （finite element model） simulations and curvature analysis, the algorithm allows saving at least 33% of high-quality raw material and, according to early first surveys on a standard production system, 30% of operation time among product engineering-processes.