量热

The methods determing the groups in the modified starch have been developed, that is acidimetry for the basicity of acidified starch, complexing titration for the substitution degree of carboxymethyl starch, and heat paste titration and carbonyl process respectively for the carboxyl and nitrogen of oxidized starch.

建立了以酸碱滴定测定酸化淀粉的碱量、络合滴定法测定羧甲基淀粉的取代度、热糊滴定和羟胺法测定氧化淀粉中羧基及羰基、消化定氮测定阳离子淀粉等几种变性淀粉的基团分析方法。

A brass that has more zinc and is stronger than alpha brass; used in making castings and hot-worked products.

比α黄铜含锌量更高，更加坚硬的黄铜，用于制铸件和热加工产品。

These studies reveal that the degradation and the enthalpy change of composites would increase with the doping dose of alpha iron nanoparticles increasing, but the temperature of composites degradation would reduce.

研究结果表明：增加纳米α-Fe的掺杂量能提高PS的降解率，降低降解温度，增大热分解的焓变。

Resultsthe best blanching time of cleaned angeleno was 4 min with 0.06 % vitamin c to stabilize color before extraction; the optimum parameters of enzyme treatment was as follows: dealing angeleno with 0.10 % pectinase at ph 4.0 and 50℃ for 4 h.

结果确定最佳热烫时间为4 min、维生素c添加量0.06 %；最佳酶处理条件：酶用量0.10 %，酶作用时间4 h，50 ℃，ph4.0；加2倍水榨汁，出汁率80.3 %。

Techniques and processes of activation for micas have been investigated. The optimum temperature of muscovite, sericite and illite is different, and at the temperatures the micas are mostly dehydroxylated, but still remain the basic layer structure. Some heat-induced phenomena can be observed in thermal-treated products, and the release potassium is principally slowly available potassium.

对云母样品活化释钾的方法进行了探讨，发现白云母、绢云母和伊利石的最佳释钾活化温度，该温度下云母部分脱羟，但仍保持了原有的基本结构，透射电镜下可见脱羟引起的辐射损伤、热致的晶格位错等结构现象；热产物中速效钾、特别是缓效钾量增加显著。

The energy consumption of a complicated heat-exchange network in chemical industry was studied with pinch point technology and the technology of flow simulations A new design was provided which reclaims the greatest remained energy.

利用夹点技术对一个复杂化工换热网络进行了用能诊断，并结合流程模拟技术新设计出一个能量回收量最大的换热网络。

In order to control the steam temperature at the outlet of the primary superheater of a 1000 t/h once-through boiler, the start up condition is analyzed in accordance with the concept of " isenthalpic switchover" and it is suggested that the ratio of fuel feed to steam flow through the primary superheater before the switchover during cold startup be used as the criterion for judgement.

为控制1000吨/时直流锅炉低温过热器出口汽温，本文系根据&等焓切换&原理对锅炉启动工况作了分析，并提出以冷态启动切分前锅炉燃料量与低温过热器工质通流量的比值作为判断依据。

The results show that with the increase of strain rate, the grain sizes of thermal simulation AZ31B alloys with different deformation all decrease; however, when other conditions are the same, the higher deformation will lead to the formation of the smaller grain size, and as the cooling intensity decreases, typical cast structure of AZ31B will appear. With the decrease of roll casting temperature, the dendritic size of roll casting AZ31B alloy sheet prepared by the same strain rate is also reduced, but with the increase of strain rate, the dendritic size of the alloy sheet prepared by the same initial roll casting temperature is decreased, and the tendency of dendritic streamline is strengthened. During the roll casting process of AZ31B alloy, rolling force should not be large, otherwise it will cause heat cracking.

研究结果表明：在不同应变量下，热模拟样品的晶粒粒度均随应变速率的增加而减小，而当其他条件相同时，变形量越大晶粒粒度越小，冷却强度降低，合金呈典型铸态组织；利用铸轧技术生产的AZ31B合金，当应变速率一定时，随着初始铸轧温度的降低，铸轧态板材的树枝晶粒度逐渐减小；而在初始铸轧温度一定时，随着应变速率的增大，铸轧态合金板材的树枝晶粒度也逐渐减小；而随着应变速率的提高，树枝晶沿轧向呈流线状排列的趋势增强；在AZ31B合金铸轧过程中，轧制力不能太大，否则容易引起热裂。

The thermal shock fatigue mechanism s of the ceram were discussed.

研究了Al2O3-TiC复合陶瓷的热震疲劳机制和TiC的添加量对其热震疲劳抗力的影响。

It is known,spinning the as-spun yarn at a speed 3 000m/min.,after being properly drawn and thermoseted,the industrial yarn canbe with properties:tenacity--7.1 cN/dtex,modulus(tenacity at 5%elongation)--higher than 4.4cN/dtex,thermal shrinkage in 1 77℃hotair for 10 min.

实验结果表明，在3000米/分纺速下的卷绕丝经过牵伸、紧张热定型及松驰热定型等工艺过程，纤维的性能可达：断裂强度7.1cN/dtex，模量(5%伸长时的应力)大于4.4cN/dtex，干热收缩率小于2.9%(177℃，10分钟)。

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％。