[Conclusion]Both the two methods are accurate in determining manganese in Chinese white wine; microwave - dispelling method can be applied for the determination when necessary.

Methods: Temperature controller and relative circuits were used in the water bath for calefaction and heat preservation with temperature adjusting when necessary.

All parameters of the VR museum auto-building system are stored in a data base. It can design VR scenes at any time and link to any other programs when necessary.

The cases in group A received intravenous injection of 15 ug/kg fentanil plus 0.5mg/kg propofol or with a supplementation of 10～20mg propofol when necessary.

The supervision engineers or the engineers of controlling quality in an overall contract should control effectively concrete quality from slection of material, mixing ratio, mixing, concreteness, maintainance and so on, decide quality when necessary using methods of concrete resiliometer, core and so on, rates synthetically to concrete itemizing project, prevent producing quality problems.

Methods QTd、JTd were measured from the 12 lead ECG in 52 patients after onset of AMI. The right percordial lead and V7～9 lead were recorded when necessary, QTd and JTd was calculated according to QTd=QT max -QT min ,JTd=JT max -JT min .

Methods 97 patients were induced with midazolam 0.1~0.3mg/kg , fentanyl 3～5μg/kg and vecuronium 0.1mg/kg ; were maintained with fentanyl 30～40μg/kg and vecuronium 0.1mg·kg-1·h-1 . Vasoactive drugs were used introperatively and postperatively when necessary to support the circulation.

A section thickness of 0.8-1.0cm and a gap of 1.2-2.0 mm in all cases. All images were obtained with a matrix of 128×128, 131×256, 150×256, 160×256, 176×256, 179×256,respectively. MR scan with axial sections was conducted in every case and coronal was added when necessary.

Methods This series included 42 suspected cases of prostatic cancer with increased PSA and 5 control subjects with bladder cancer. PET/CT imaging was performed 5min after injection of the tracer 11C-choline,7. 4 MBq/kg in supine position, covering the pelvis, and the whole body when necessary.

The injection group received intravenous injection of 2mg/kg propofol with addition of 20-50mg propofol for each time at intervals during anesthesia when necessary.

The change of rice cropping systems alters the environmental conditions essential to the multiplication and survival of rice stem borers, resulting in a conspicuous difference in the annual number of generations, the temporal position of the population peaks and the degree of infestation. The development of the original single late rice cropping to double and triple cropping from partiality to totality in the region caused a corresponding change of the pest status from light to severity and then from severity...

The change of rice cropping systems alters the environmental conditions essential to the multiplication and survival of rice stem borers, resulting in a conspicuous difference in the annual number of generations, the temporal position of the population peaks and the degree of infestation. The development of the original single late rice cropping to double and triple cropping from partiality to totality in the region caused a corresponding change of the pest status from light to severity and then from severity to light. Evidently the degree of borer infestation is closely related to the numerical changes of the populations aad the coincidence of the vulnerable developmental stages of rice plants and the appearance of newly hatched larvae. Our field experience in the past a few years has shown that suppression of borer populations to a low level can be achieved by adopting rational cropping systems, increasing the uniformity of. the rice varieties planted in one region, improving field management by proper watering and manuring to promote healthy and uniform vegetative growth and applying insecticides in a restricted manner when necessary.

In our recent work of simulating the chemical process of polymerization by matho-matical models,problems involving Flory distribution and its moments of different orders have been frequently encountered. The object of this paper is to derive a general formula to evaluate the sum of the series wherein N may be any positive integer.This result will be feasible for auy given N,and can be translated into computer program when necessary. First of all,by mathematical induction a set of identities may be proven.??...

In our recent work of simulating the chemical process of polymerization by matho-matical models,problems involving Flory distribution and its moments of different orders have been frequently encountered. The object of this paper is to derive a general formula to evaluate the sum of the series wherein N may be any positive integer.This result will be feasible for auy given N,and can be translated into computer program when necessary. First of all,by mathematical induction a set of identities may be proven.?? making use of the given identities yields?? Thus we finally arrived at the general formulation? where α_n~N satisfies some recursion relations and can also be expressed in a triangular array.

The blood vessels of 26 right and24 left anterior pectoral flaps of 37Chinese male--adult cadavers collectedin Chengdu district were dissected andmeasured after an ordinary embalmingand color latex injection. Emerging from the first intercostalspaces, Rami perforantes of thearteriae thoraciae internae (RPATI) Ⅰpossess the highest means of theirdiameters both while piercing the deepfascia (0.98±0.31mm) and beforeentering pectoralis major (1.16±0.31mm) Besides, among the RPATI theyalso supply blood the most extensivelyin...

The blood vessels of 26 right and24 left anterior pectoral flaps of 37Chinese male--adult cadavers collectedin Chengdu district were dissected andmeasured after an ordinary embalmingand color latex injection. Emerging from the first intercostalspaces, Rami perforantes of thearteriae thoraciae internae (RPATI) Ⅰpossess the highest means of theirdiameters both while piercing the deepfascia (0.98±0.31mm) and beforeentering pectoralis major (1.16±0.31mm) Besides, among the RPATI theyalso supply blood the most extensivelyin area of the upper 4 ics. Thefrequency of appearance of the largestRPATI in the first ics. is also thehighest (65.6%). Therefore, it seemsreasonable to conclude that RPATI Ⅰis the main artery of the anteriorpectoral flap. As a rule, the diameter of RPATIentering pectoralis major is larger thanthat penetrating the deep fascia. Inorder to obtain an artery of largercaliber, it is advisable to cut the fasciaand split the muscular fibers and takethe vessel from a deeper site, andsometimes, resect the correspondingcostal cartilage and cut the arterialpedicle at its root when necessary. Most of RPATI pierce the deepfascia within approximately 1 cm. fromthe border of the sternum, abreast withcorresponding superficial veins (notthe venae comitans) which are alsosuitable for anastomosis. 2 cases whose upper part of theflap has an unusual arterial origin arealso described in this paper.