酸值

Professor Wootton says the most troubling finding is the speed of acidification, with the pH level dropping at a much greater rate than was previously thought.

伍顿教授称，最恼人的发现是酸化的速度，PH值以前所未有的速度下降。酸化速度要比以前预测的模型快10到20倍。

The oxidation of abietic acid was studied by UV spectrophotometer on the polyethylene film. The effect of antioxidants such as MBP, FMH, DBH, DSB3 and DSB6 on the oxidation of abietic acid was discussed. Antioxidant value was used to determine their antioxidative activities.

采用紫外分光光度分析方法研究了枞酸在聚乙烯膜上的氧化反应，考察了MBP，FMH，DBH，DSB3，DSB65种抗氧剂对枞酸氧化反应的影响，提出了用抗氧化值AO考核抗氧剂的抗氧化能力。

Namely, the fluid of swift water and tiny whirlpool come from kinetics of the process which make the mass transfer better; 2 Increase alkalinity to improve the capability of abirritation of the system and an optimal pH condition which fit to acidic bacterium come into being.

即通过动力学措施造成反应器内流体介质的湍动及形成微涡旋，利用涡流扩散和对流扩散来加速传质；2提高所处理的碱度，增强系统的缓冲能力，控制酸化菌生存的最佳pH值范围，以实现系统在酸化段有机去除能力的高效性。

It demonstrated that the hydroxy organic acids substituted with-OH,-SH at α—C such as lactic acid, Hydroxy-acetic acid, mercapto-acetic acid, glyconic acid have good selectivity for separation of hematite and aegirine pka values of organic acids fall down because of the-I inductive effect of-OH or-SH, and lie at the pH range between two minerals point-zero-charge. As a result, the depression ability of them was enhanced, and a cyclo-pentyl chelate was formed when this organic acids acted with Fe〓 on the minerals surface.

发现在α位具有-OH、-SH等取代基的短链一元羧酸（乳酸、羟基乙酸、巯基乙酸，葡萄糖酸）对赤铁矿与钠辉石的浮选分离具有优良的选择性抑制作用，-OH、-SH的-I诱导效应导致有机酸的pKa值下降并落在两种矿物零电点之间，使其抑制性能增强，并与矿物表面的Fe〓形成稳定的五元螯合环。

An aminobenzene sulfonate-formaldehyde based polymer dispersant with good grinding efficiency was synthesized under alkaline condition using aminobenzene sulfonate, phenol and formaldehyde as main raw materials.

以对氨基苯磺酸、苯酚、甲醛为主要原料，采用碱性合成线路制备了具有助磨效果的氨基磺酸系高效减水剂，系统地研究了单体比例、单体浓度、交联剂用量、反应体系初始pH值、反应时间和反应温度等因素对助剂助磨效果的影响。

RESULTS:In the case of ambient temperature cefoxitin with etamsylate is in compatibility steady-state both in compatible content and outward stability (P＞0.05) within 6h;cefoxitin with aminomethylbenzoic acid or adrenochromazone is in compatibility steady-state (P＞0.05) within 4h;cefoxitin with aminocaproic acid varies in compatible content (P＜0.05) after 4h.

结果：在室温条件下，头孢西丁与酚磺乙胺在0～6 h内含量(P＞0.05)和外观稳定，但pH值有变化(P＜0.05)；与氨甲苯酸、安络血在0～4 h内稳定(P＞0.05)；与氨基己酸配伍有变化(4 h后P＜0.05)。

SO〓 injury caused a reduction of water, chlorophyll and anthocyanidin, and pH values of the grapes injured by SO〓 were decreased and the intracellular acidification of flesh could be found. SO〓 injury also inhibited activities of SOD, POD and CAT, and deceased ASA contents. Hence the membrane lipid per oxidation was accelerated and the content of MDA and relative electrical conductivity were increased. Treatment of toxic dose of SO〓 increased respiratory rate, lowered activities of PAL and PPO.

与不耐SO〓的品种&红地球&相比，耐SO〓品种&巨峰&具有较高的pH值和较大的缓冲容量，较高的超氧化物歧化酶和苯丙氨酸解氨酶活性；受SO〓刺激后，耐SO〓品种&巨峰&的超氧化物歧化酶及苯丙氨酸解氨酶活性和酚类物质含量上升幅度大于不耐SO〓的品种&红地球&；长期处于SO〓伤害环境时，耐SO〓品种&巨峰&的过氧化氢化酶活性下降幅度低于不耐SO〓的品种&红地球&。

Alpha-1 antitrypsin is the most abundant circulating protease inhibitor in the body, Dr. Lomas said. Its most common deficiency mutation is the Z allele, where the amino acid lysine is exchanged for glutamic acid at position 342 in the polypeptide chain (Glu342Lys). About 1 in 1700 whites of northern European descent are homozygotes for this mutation and thus have plasma antitrypsin levels that are 10% to 15% below normal, he said.

Lomas博士表示，甲一型抗胰蛋白酵素是身体内最充分的循环蛋白酶抑制剂，最常见的缺损突变在Z对偶基因，该处的胺基酸 lysine与麸氨酸在多胜肽链的第342位置交换(Glu342Lys)；北欧血统白人每1，700人有1人是此一突变的同合子，因此血浆抗胰蛋白酵素值比正常低10%到15%。

In the test 5 treatments of single-sowed alfalfa or smooth brome grass, and their mix-sowing with different ratios of 50%+50%, 60%+40% and 70%+30% were set up to analyze pH, CP, NDF, ADF, acetic acid, butyric acid, lactic acid and total acid of the silage in each treatment and study the effect of alfalfa and smooth brome grass with different mix- sowing ratio on silage quality.

方法］试验设5个处理，即紫花苜蓿单播、无芒雀麦单播、紫花苜蓿＋无芒雀麦以50%+50%、60%+40%和70%+30%比例混播，分析各处理青贮材料的pH值、CP、NDF、ADF、乙酸、丁酸、乳酸和总酸的变化，研究无芒雀麦与紫花苜蓿不同比例混播对青贮品质的影响。

Serum alt,ast,and bile acid were observed by enzyme assay and the ratio of ast/alt was worked out. serum bilirubin was measured by peariman and lee method. serum albumin was tested by bromphenol assay and was simultaneously measured to hyaluronic acid, type ⅲ procollagen, laminin and type ⅳ collagen by ria. meanwhile, prothrombin time and platelet count were measured and so on. results: the level of serum aca was raised increasingly in different cirrhotic cases with different classifications of child-pugh, according to severity of the condition.

应用酶联免疫吸附法分别对不同分级的肝硬化患者血清中抗心磷脂抗体的含量进行了测定；用酶法测定了alt、ast与胆汁酸并计算ast/alt值；用peariman和lee改良法测定血清胆红素；用溴甲酚氯比色法测定血清白蛋白；用放射免疫分析法测定透明质酸、ⅲ型前胶原氮端肽、层粘连蛋白与ⅳ型胶原；并测定了凝血酶原时间与血小板计数等相关指标。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。