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The induction percentages of meristematic globules from immature male flowers was from 15 % to 81 %, depending on the cultivars.

以7 个香蕉品种未成熟雄花为外植体均获得了分生小球体。

Through designing of composition and structure of the bioactive graded coating,innerstress and its distribution in the coating were analyzed and calculated, the resultsshowed that when composition distribution coefficient n was 1.5, a reasonable stressdistribution could be got, that was at the beginning of deposition the suspension containingrichly BG granules was used so that a rich BG granules layer, a good transitional layerbetween BG layer at the bottom and the coating could be obtained at the titanium alloy side,the bottom of the coating; the stress value near the interface and surface and its character,pressure stress or tensile stress, were decided by the character of its composition itself.Changing composition distribution coefficient n could only change the variation tendency ofstress in the coating, but did not change the stress distribution rule in the coating. Thethinner the coating is, the sharper stress variation in the coating is, which does not mean thatthicker coating is better because the thicker the coating is, the little the permitteddeformation of coating is, so the coating thickness should be thinner, for example, about50μm for bending applications, but for applications only bearing pure shear stress, such asroot of tooth implant, the coating can be thicker little, for instance, about 80~100μm. The study on electrification characteristic and electrophoresis deposition of HAand BG granules in aqueous and non-aqueous solution system found that EPD almost didn'toccur in aqueous solution system. However, because HA granules take position charges inabsolute alcohol, a homogeneous EPD be carried out on the cathode titanium alloy slice, but taking negative charge in absolute alcohol the BG granules not be deposited on the cathode. A guided HA crystallizing, 100~300nm, on surface of the BG granules be realized by metathetical reaction, which cover BG granules with HA microcrystals and make the covered BG granules taking position charges in absolute alcohol, sequentially realize the EPCD of the BG and HA granules on the cathode, so it is feasible to make a titanium alloy/BG/HA bioactive graded coating by making use of EPCD technology. The corrosion experiment of rich boron bioglass coating and plasma spray coating showed that split phase, rich boron and rich silicon phase, occurred during its preparation. In basic medium the corrosion behavior of 〓 BG coating showed uniformity corrosion, the corrosion mostly occurred at rich boron phase area, therefore batch formula design of BGshould avoid the occurring of split phase. The corrosion appearance of plasma spray coatingappeared a non-uniform corrosion, mostly occurred at the edge of the laminated HA moltendrops, and emerged an accelerated corrosion tendency, which will easyly lead to corrosioncrackles extending to the interface and the happening of osmotic interfacial corrosion, thatmay be one of the major reasons leading to the coating cracking-off in the later period. Thetesting results of thermal expansion coefficient of 〓 and 〓BG showed the thermalexpansion coefficient of 〓 BG matched with that of titanium alloy better, and 〓 BG couldsinter with titanium alloy into densification enamel layer at low temperature (720℃).

将Ti6Al4V合金在1000℃下进行真空热处理会降低其力学性能,且合金内的V元素会向表面富集,因此,钛合金真空热处理和表面涂层的烧结温度不能过高,即应低于其相转变点;通过对生物活性梯度涂层的组成和结构的设计,分析和计算了梯度涂层内的应力大小和分布,结果表明:对于本研究,当成分分布系数n=1.5时,可以获得较合理的涂层力学性能,即在沉积开始时,采用富含BG颗粒的悬浮液,以便在钛合金侧获得同底层BG有良好过渡的富BG涂层;梯度涂层界面和表面的应力大小、性质由材料组成本身的性质决定,改变成分分布系数,只能改变涂层内应力变化的趋势;涂层的厚薄不影响涂层内的应力分布规律,但涂层越薄,涂层内的应力变化越快,但这并不意味着涂层越厚越好,因为涂层越厚,涂层允许的变形越小,对于应用于弯曲受力部位的涂层而言,涂层应薄一点为好(50μm);而对于仅纯受剪切应力的部位,如牙根种植体,涂层可适当加厚(80~100μm);通过对HA和BG颗粒在水溶液体系和非水溶液体系中的带电特性和电泳沉积的研究发现,它们在水溶液体系中很难发生电沉积;在无水乙醇溶液中,HA颗粒带正电,可在阴极钛合金片上发生均匀的电泳沉积,而BG颗粒则带负电荷;利用复分解反应法,可以制得100~300nm的HA,通过诱导HA在BG颗粒表面结晶,可对BG颗粒进行表面包覆,获得了被HA包覆的BG颗粒,改变了BG颗粒表面的带电特性,使BG和HA颗粒在无水乙醇中均带上正电荷,从而实现了HA和BG颗粒在阴极上的共沉积。

A secondary problem is the need for disinfectant/sterilant agents that combine rapid microbicidal activity against common vegetative bacteria, atypical mycobacteria, fungi, nonenveloped hydrophilic viruses, parasitic cysts, and even bacterial endospores, with minimal toxicity for personnel exposed to

第二个问题是对工作人员暴露毒性最小的消毒/灭菌因子的需要,而且具有对一般繁殖体细菌、非典型分枝杆菌、真菌、无包膜亲水性病毒、寄生虫包囊、甚至是细菌芽孢的联合快速杀菌活性。

Our research utilized two cell lines carrying a bisatellite microchromosome originated from two normal phenotypic families found by Professor Jiahui Xia to make the BM become a new vector for gene therapy. The research will finally establish a novel vector that can be steadily transmitted, has enough capacity to carry foreign genes, has no harm to human being, has no immunogenecity and is easy to transfer. This research can provide brand new vector tool for gene therapy of human hereditary diseases and tumors.

本研究利用夏家辉教授发现的2个带有双随体小染色体而表型正常的家系所建立的细胞株作为研究材料,用BM作为基因治疗新载体,以求最终建立一种能稳定遗传、携带外源基因容量足够大、对人体无害、无免疫原性和易于基因转移的新型载体,为人类遗传病和肿瘤的基因治疗提供崭新的载体工具。

The true blackberry of Europe as well as any of numerous varieties or microspecies having sweet edible black or dark purple berries.

欧洲的正宗黑莓就像许多变体或其它小种属一样,具有甜的可食的黑色或深紫色浆果。

Karyotypic findings showed that all cultivars were mixoploid with chromosome number ranging from 49 to 57, and 54 was the most frequent number observed.

结果表明:(1)17个栽培小菊均为混倍体,染色体数在49~57之间变异,以54条为主;(2)染色体呈现多态性:多数品种由中部、近中部和近端部着丝粒染色体组成;最长与最短染色体的比值为1.62~2.39;臂比>2的染色体所占的比率为11.11%~29.62%;核型不对称系数为59.74%~63.37%;3个地被菊品种和'奥运橙光'、'金陵白凤'(2n=53)核型类型为&2B&,其它品种为&2A&型。

The Xiaotongguanshan copper deposit located in the Tongguanshan copper field is related to the Tongguanshan quartz monzodiorite.

小铜官山铜矿床位于安徽铜陵铜官山矿田,侵入岩体为铜官山石英二长闪长岩。

A fuzzy support vector machine based on distance which used to model the mycelial concentration by soft sensor is proposed in this article.

针对青霉素发酵过程中的菌体浓度进行软测量建模,提出了一种新的基于距离的模糊支持向量机,并用序列最小优化算法求解优化问题。

"Tuina Manipulation combined with Exercise Therapy" treating the lumbar disc herniation cases has a significant long residual effect. Analying the anatomy, physiological characteristics, mechanics analysis of the waist and LDH's modern research, its mechanism may adjust to lumbar compliance; ease cramps; change the relative positions of disc and nerve roots, reduce or lift the oppression; correct facet dislocation; release adhesions, improve circulation and promote absorption and repair of the inflammation and edema; analgesic pain threshold or enhance the organization; improve the waist myodynamia; reconstruct the balance of the waist and so on.

结合腰部椎体、肌肉及韧带等组织的解剖、生理特点、力学分析和腰椎间盘突出症的现代研究分析,其机制可能是调整腰椎顺应性,缓解痉挛;改变突出髓核与神经根的相对位置,减轻或解除压迫;纠正小关节错位及滑膜崁顿;松解粘连,改善循环,促进炎症、水肿的吸收和损伤修复;镇痛与提高组织痛阈;改善腰部肌力;促进人体生物力学结构重构;恢复腰椎及其周围力学平衡等几个方面。

When the protoplast-derived calli were transferred into the MS solid medium added with 2.0mg/L benzylamino-purine and 0.4mg/L naphthaleneacetic acid and cultivated in the codition of low illumination, after which the adventitious shoots were induced, then we could obtain numerous plantlets and could transplant them survival to pots in the greenhouse.

当将原生质体分裂形成的愈伤组织转移到附加2.0mg/L6-苄氨基嘌呤和0.4mg/L萘乙酸的MS固体培养基上,并在低光照条件下培养后,从愈伤组织上分化出了不定芽,进而发展成小植株,并移栽成活。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。