黑化

昆虫黑化形成的原因与类别多种多样，黑化的遗传调控和分子基础也各不相同。

The causes , controls and biology of insect melanism are significantly different among different insects .

昆虫的黑化机理

Mechanism for insect melanism

医用X射线高速靶钼基体黑化涂层材料及其组成的研究

Research on Material and Constitution of Blackened Film on Molybdenum of Medical X-Ray Tail - wagging Tungsten Target

双U灯接桥处黑化原因的分析

The Analyses of Blackening at The Place of Connection Bridge of Twin U Compact Fluorescent Lamp

ABS树脂的化学镀Ni-P镀层的超黑化性能

Ultra Black Property of Ni-P Coating on ABS Resin by Chemical Plating

在PZT中通过掺杂得到了本体黑化的PZT热释电陶瓷。

The self-darken pyroelectric ceramic has been obtained by doping in PZT .

ITO靶材黑化的因素浅析

Analysis on the factor of ITO Blacken target

斯氏按蚊血淋巴在约氏疟原虫卵囊黑化时差异表达蛋白的SDS-PAGE分析

SDS-PAGE analysis of differentially expressed proteins from Anopheles stephensi hemolymph produced during the Plasmodium yoelii oocysts melanization

荫罩黑化及DX气与煤气成分的探讨

Discussion of Shadow Mask Blackening and Gas Composition

本文分析了双U紧凑型荧光灯接桥处黑化的原因，并对这一问题提出了解决方法。

Abstract The reasons of blackening at the place of connection bridge of twin U compact fluorescent lamp are analyzed and a methode for solving this problem is suggest .

酚氧化酶（phenoloxidase，PO）在昆虫中参与黑化包被、伤口愈合、表皮硬化、色素形成等过程。

Insect phenoloxidase ( PO ) participates in melanotic encapsulation , wound healing , cuticle sclerotization and pigment forming .

荫罩双层清洗黑化技术的开发及应用雷达罩壁双层FSS电结构设计与选择

Development and Application of the Shadow Mask Double Deck Cleaning Blackening Technology Electrical Configuration Design for the Double Layer FSS on Radome Application

钢铁黑磷化是以HHS黑化剂为特征的表面处理新工艺。

Black phosphating of iron and steel is a new surface treatment process made a feature of using HHS blackening additives .

但还不知道PPO是如何到中肠组织内的，如何发生蛋白酶级联的，以及如何参与雌按蚊内疟原虫卵囊黑化过程的。

It is unclear how PPO is transported into the midgut tissues , activated by a protease cascade , and engaged in the melanization process of Plasmodium oocysts in the midguts of female Anopheles mosquitoes .

在铬酐硫酸体系的配方中，GW1复合添加剂可显著提高预处理的速度，改善氧化膜的致密性、结合强度和外观均匀性，同时还对黑化液具有稳定作用。

Within chromate-vitriol prescription , GW-1 additive can raise pretreatment velocity obviously and improve density , combining strength and uniform appearance , as well as stabilize the blacking chemical composition .

黑化剂选用了磁漆、聚胺脂平光漆、碳素墨水、TH-1型二氧化硅涂料及磷酸锰涂料。

The blacking reagent uses magnetic paint , polyurethane flat paint , carbon ink , TH-1 silicon dioxide paint and manganese phosphate paint .

结论抗疟药物硝喹可诱导斯氏按蚊TEP1基因上调，该基因与约氏疟原虫卵囊黑化相关。

Conclusion Transcriptional variation of TEP1 gene may be related to the melanization induced by nitroquine .

目的：探讨在人体试验中以最小持续性黑化量（MPPD）作为判断长波紫外线（UVA）防护效果指标的可行性。

Objective : To study the feasibility of using minimal persistent pigment dose ( MPPD ) as an objective parameter in evaluating UVA protection in human .

目的对斯氏按蚊TEP1基因与抗疟药硝喹诱导约氏疟原虫卵囊黑化反应的相关性进行初步研究。

Objective To analyze the relationship between the TEP1 gene of Anopheles stephensi and melanotic encapsulation of Plasmodium yoelii induced by anti-malaria drug nitroquine .

酪氨酸在酶的作用下羟化为Dopa，Dopa再在一系列酶的作用下转化为儿茶酚类及其衍生物，并且参与到鞣化与免疫黑化中。

Dopa is produced by the hydroxylation of tyrosine , and it subsequently converts to oxidized catechols and their derivatives by a series of enzymes , which lead to tanning , melanization and immunity .

因此，用持续性黑化反应评价皮肤受到的UVA辐射是一种准确和重复性好的技术方法，以MPPD作为观察指标对防晒品的UVA防护效果进行人体试验评价是可靠和可行的。

Conclusion : The MPPD method is a reliable and accurate endogenous dosimeter for UVA radiation in the skin and MPPD may be an objective and feasible index in the evaluation in vivo of UVA protection .

黑化是由酚氧化酶催化一系列酚类物质被氧化还原生成醌类物质，醌再经过非氧化还原反应最终生成黑色素反应过程，酚氧化酶是这一过程的关键酶（phenoloxidase，PO）。

And is catalyzed by a series of phenoloxidase phenols were generated quinones redox material , after the non-quinone oxidation-reduction reaction to generate the final response to the process of melanin pigment , phenoloxidase is the key enzyme in this process ( phenoloxidase , PO ) .

本文对黑化集团碳酸二甲酯装置JX-300XP自动控制系统的结构特点、硬件配置和软件实现等内容进行了阐述。

The design feature , hardware configuration and software implementation of JX-300XP ACS ap-plied in methyl carbonate device in Heilongjiang Chemical Industry Group were introduced .

剥离的白色幼虫表皮组织在不同条件下培养，进一步研究TmTH在表皮黑化过程中作用，48h后倒置显微镜下观察表皮颜色变化。

In order to deeply research the function of TmTH in epidermis melanization , white epidermis was dissected from larvae and was cultured 48h in different conditions , then observed the changes of cuticle color by inverted microscope .

表皮的鞣化，骨化及黑化在昆虫发育中起着重要作用，3,4-二羟苯丙氨酸（多巴，Dopa）是昆虫新生表皮鞣化和免疫黑化所必需的。

Cuticle tanning , pigmentation and melanization of insects play an important role in the process of their developmental metamorphism . It is well known that 3 , 4-dihydroxyphenylalanine ( Dopa ) is essential for tanning of newly formed cuticle and the immune-associated melanization in insects .

黑色金属高耐蚀性黑化处理的研究

Studies on high corrosion resistance of black process on black metal

目的鉴定与抗疟黑化反应相关的大劣按蚊血细胞。

Objective To identify the hemocytes related with anti malaria melanization response .

钢铁表面常温黑化剂的研究

Studies on Black Finishes for Iron Surface in Room temperature

钢铁件常温黑化工艺的研究

Investigation of Room Temperature Blackening Technology for Iron and Steel

铸铝合金表面无铬化学黑化新工艺的研究

Research of New Process about Chromate-free Chemical Blackening on Casting Aluminum Alloy Surface