层积

金属快速原型层积成形表面光整CAM系统

Surface Finishing CAM System for Lamination Fabrication of Metal Rapid Prototype

结果表明：竹层积材是一种低湿胀性材料，顺纹、径向和弦向上均远低于木材和LVL。

The results showed that the grading bamboo strand lamination is a low-swelling material . The swelling of parallel to grain , radial and tangential is lower than that of timber and LVL .

朝鲜冷杉种子层积过程中萌发特性和内源激素ABA、IAA含量的变化

Germination Characteristic and Endogenous ABA , IAA Content Change in the Seed of Abies koreana During Stratifying

GA对变温层积条件下解除辽东楤木种子休眠的作用及其机制研究

The Research on the Effect of GA on Breaking Dormancy of Aralia Elate Seed and the Mechanism of That under Altering Temperature Stratification

研究了山楂种子GA3、IAA、ABA含量在不同采收期和层积过程中的变化。

The content of GA_3 , IAA and ABA in hawthorn seeds harvested on different date , and processed under stratification was analyzed respectively .

不同因素对竹／木复合强化单板层积材MOE、MOR的影响

The Effect of Different Factors on MQE and MOR of Strengthened Bamboo / Wood Composite LVL

单板层积材（LVL）受弯构件的结构性能研究

Study on the Structural Performance of Laminated Veneer Lumber ( LVL ) Beams

结果表明：GA3能代替低温层积，促进越橘种子发芽。

Results showed that GA_3 could replace the role of low temperature on cowberry seed in dormancy-breaking process .

药用植物种子生理研究XIV低温层积对厚朴种子休眠和萌发的影响

The Study on Seed Physiology of Medicinal Plants Effects of Stratification on Dormancy and Germination in Magnolia biloba

自然层积过程中，GA和IAA含量不断升高，ABA含量逐渐降低，ZR含量先降低后升高。

During the process of natural stratification , GA and IAA contents increased gradually , ABA content decreased gradually , at first ZR contents was decreased , and then increased .

单板厚度是影响单板层积材（英文缩写LVL）强度性能的主要因素之一。

The thickness of veneer is the main factor that affects the strength of laminated veneer lumber ( LVL ) .

解除其休眠可采用变温层积或200mg/kgGA3处理，不仅促进种子发芽，而且大大缩短休眠期。

The treatment method of 200 mg / kg GA_3 and changing temperature stratification not only increased obviously germination percentage , but also shorten dormant period .

讨论LVL（单板层积材）梁受弯曲、水平剪切载荷时的主要破坏形式并得出相关结论。

The primary failure modes were discussed when LVL beams suffered the flexural and level shearing load . Relevant conclusions were drawn .

北美鹅掌楸种子在裸层积过程中，激素含量变化比较复杂。IAA、GA3、ZR的含量出现波动性，但IAA／ABA、GA3／ABA、ZR／ABA的比值呈上升趋势。

During the process of naked stratification at low temperature , hormone contents have a complex changing trend , but IAA / ABA , GA3 / ABA and ZR / ABA ratio rise rapidly .

结果表明对花后60d的里扎玛特和巨峰的幼胚进行胚培养，其发芽率和成苗率显著高于层积处理后催芽播种的种子的发芽率与出苗率。

The results indicated that the germination rate and seedling rate of the embryo culture were higher than those of insemination .

赤霉素（GA）是调控种子萌发、茎和下胚轴伸长、花发育和开花等诸多生命过程的重要激素，在拟南芥、榛子和苹果中的研究表明，低温层积能提高种子内源GA含量。

Phytohormone gibberellins ( GAs ) play crucial roles in seed germination , stem and hypocotyl elongation , floral development and flowering time . Cold stratification can increase the endogenous GA contents in Arabidopsis , hazel and apple seeds .

在层积基质D0中可以明显的看出，GA浸种处理的青钱柳种子平均发芽率比对照（0ppm）在60天时高出了10.7%，在120天时高出17.7%。

In d0 media , the mean germination rate of exogenous GA3 treatment increased 10.7 % at the 60th day and 17.7 % at the 120th day than the control .

经过低温层积6个月的种子外种皮ABA下降了4.86倍，胚乳为1.15倍，而内种皮和胚均有少量增加。

Through six months of low temperature stratification , ABA content of the external seed coat decreased 4.86 times and that of endosperm did 1.15 times , which that of either internal seed coat or embryo increased slightly .

结果：低温层积初期，滇重楼种子ABA的含量呈下降趋势，且较明显；进入生理后熟期以后，GA3、IAA、ZR的含量持续升高。

Results : The ABA concentration of the seed decreased clearly in the earlier cold stratified stage at low temperature , but the concentration of endohormones GA_3 、 IAA and Zr increased in the post-ripening Period .

在万能力学试验机上测试由高频热压方法制造的桦木和椴木单板层积梁的密度、静曲强度（MOR）、弹性模量（MOE）和水平剪切强度等力学性质；

Mechanical properties including the density MOR , MOE , shearing strength of birch and basswood LVL beams made by the high-frequency hot press were tested by universal strength testing machine .

结果低温层积20d时，种子发芽率为14%，40d时种子发芽率可达60%以上。

Results The seed germination rate achieved as high as 14 % in 20 d and more than 60 % in 40 d.

单板层积材（LaminatedVeneerLumber，简称LVL）具有轻质高强、力学性能稳定、尺寸规格灵活等特点，是一种高性能、生态环保的新型建筑复合材料。

LVL ( Laminated Veneer Lumber , referred to as LVL ) which has high strength , stable mechanical properties , flexible sizes features , is a new-construction composite materials of high performance and eco-environmental characteristics .

本研究认为，低温沙藏层积处理180d和裸层积处理120d打破北美鹅掌楸种子休眠的效果最好，处理后的发芽率分别为88%和90%。

The 180d low temperature stratification treatment and 120d naked stratification treatment are he best way to break seed dormancy .

应用低温层积、GA3、CaCl2、KH2PO4处理人工老化处理的麻黄Ephedrasinica种子，研究不同处理对麻黄种子生理生化特性的影响。

Effects of different seed treatments including low temperature stratification , GA_3 , CaCl_2 and KH_2PO_4 on aging seed physiological characteristics were studied with aging seed of Ephedra sinica stapf .

通过采用隔年的陈酸枣仁不同层积天数处理，以及对当年新种子进行不同浓度GA3和GA3浸泡时间长短的试验，对酸枣种仁的发芽特性和休眠性进行探索。

Through test of the different stratification day-treatments of old wild jujube kernel and different densities of GA_3 and soaking times of GA_3 , the characteristic of dormancy and germination of wild Jujube seed was experimented .

秦冠苹果种子的总呼吸强度和EMP途径的呼吸强度在2℃条件下层积之后逐渐增加，解除休眠临界期大体在层积后第30天发生，此后增长速度较快。

The total respiration and EMP-pathway increased gradually and the critical period occur on the 30th day in " Qinguan " apple seeds after stratification at 2 ℃, and then the total respiration and EMP went up rapidly .

用ABT生根粉溶液浸种24h或低温（5℃）层积60d，可解除种子休眠，萌发率由28%可提高到80&90%。

That seeds treated by soaking in ABA solution for 24h or the low temperature ( 5 ℃) stacking 60d would break dormancy , and increase the germination rate from 28 % to 80-90 % .

每种组坯单板层积材的MOE与MOR理论分析结果、计算机模拟结果与试验结果都非常接近，复合材料力学与ANSYS软件分析适用于单板层积材的力学性能分析。

The MOE and MOR results of theoretical analysis and computer simulation of each LVL assembly pattern were very close to the test results . The composite material mechanics and ANSYS simulation analyses were appropriate for the LVL mechanical property analysis .

结果表明，成熟的种子经180d低温层积不能萌发，而提早30d采收则萌发率可达32%。

The result showed that the matures seeds stratified for 180 days couldn ′ tgerminnte , but 32 % of the seeds collected 30 days before maturity could germinate .

在2~12℃变温层积处理56d的条件下，种子绝对发芽率为80.71%，种子发芽较快。

When temperature variable ( 2 ~ 12 ℃) and less time ( 56 days ), the seed absolute germination percentage was 80.71 % .