Results: The distances from the middle line to midpoint of lateral mass, to the inner wall of transverse foramen and to the inner edge of pedicle were 17.56±1.18 mm, 23.04±1.69 mm and 14.18±1.07 mm respectively.

3)The maxillary branches of the trigeminal nerve,the mean of its length,thickness and the distance to the middle line in sphenoid sinus are 5.3mm,1.2mm and 8.5mm respectively.

In the planning of interior tangential field, the distance to the middle line of the body in the first,second and the third transection was (4.012± 1.173) cm, (4.797±1.565) cm, (4.219±1.178) cm, respectively.

Results:The distances from the middle line to the midpoint of lateral mass,to the inner wall of transverse foramen and to the inner edge of pedicle were 17.6±1.2mm? 23.0±1.7mm and 14.2±1.1mm respectively.

The distances from the site of LCEV perforating to anterior middle line were gradually augmenting. The distance of T2' s was 8.87±0.57 cm and the distance of T6' s was 10.17 ± 0.83 cm.

The findings were as follows: the point of the needle's entry was opened at the outside from the rear of the middle line. The farthest one was L_4: 71.12±10.07mm.

Anterior cutaneous branches of obturator artery spread out on middle portion of flap. Piercing site of it is (3.0±0.5)cm apart from middle line of perineum, (1.7±0.4)cm from anterior margin of vaginal introitus, (0.6±0.2)cm from outer fringe of lower pubic rami and (0.8±0.1)mm in diameter.

8 cm from the middle line. In the superficial fascia, it descends almost vertically into great saphenous vein. The separating length is 6 0±1. 7cm and the outer diameter of mid-1/ 3 is 2. 0±0. 3 mm.

The total length of tibial medullary was 30.6±2.5 cm,and the length of narrow part was 8.0±0.6 cm. The proximal and distal opening K were 11.7±4.6 and 8.9±2.7 respectively. The arc of the middle line of medullary cavity was 2.7°±0.4°.

The results showed that{111}texture composition was maximum at the middle line of the thickness when annealing temperature was 750℃ and holding time was 90 minutes.

The result of the experiment confirmed that the suitable quantity of ID was 0.05ml and the right place of injection was on the cross-place where the middle wrist striation up to 4～5cm on its middle line.

It is shown that the slope of either the bisector, or the middle line of the extending crack branches can equally well represent this angle.

The article deals with the resonance of n-th order in forced transverse vibrations of a beam containing a crack situated perpendicularly to the middle line of the beam over its entire width and having a certain depth.

As a consequence, the outer hair cells, connecting the middle line of the basilar membrane with its marginal edge, are subject to altering compressive and stretching forces.

A high concentration of mass along the middle line of the cochlea partition provides the sharpening of the tuning curve without significantly altering the phase.

The dominant mode excitation has been successfully suppressed by adding a sequence of covered wire in the middle line of the microstrip leaky wave antenna.

In this paper, the finite element analysis of seepage flow of earth dams is stated and a solving method for the falling of free surface taken as discharge supply boundary condition in unsteady flow is proposed. By Galerkin's method, the computing eqs. (34)、(35) by finite element method for unsteady seepage flow of earth darns and eqs. (36)、 (37) by finite element method for steady seepage flow of earth dams in either case of existing or no groundwater flow toward downstream are given. In connection with finite...

In this paper, the finite element analysis of seepage flow of earth dams is stated and a solving method for the falling of free surface taken as discharge supply boundary condition in unsteady flow is proposed. By Galerkin's method, the computing eqs. (34)、(35) by finite element method for unsteady seepage flow of earth darns and eqs. (36)、 (37) by finite element method for steady seepage flow of earth dams in either case of existing or no groundwater flow toward downstream are given. In connection with finite element analysis the method using middle lines of trianqular elements for computing discharge is introduced and its computing eq. (40) is given. Based on the concept of seepage force, the slope stability analysis utilizing the original divided elements is introduced and the computing eqs. (45)、(50)、(51) for ordinary circular sliding method are givem. To adjoin the charateristics for computing the seepage flow of earth dams, some explanations for computer program are described by which the determinations of seepage free surface and exit point, the discharge passing through sloping blanket and how to supply the free surface just beneath as well as how to realize the slope sliding stability analysis are primarily introduced. Finally some practical examples are given and their computing results with that of electric analogy and observation data in nature are compared.

In this paper, the solutions for the bending of cantilever rectangular plates with concentrated load acting at any point of the middle line perpendicular to the clamped edge are given by means of a conception named modified simply supported edges and the method of superposition Some numerical examples are presented. The total bending moment checks very well with the value determined statically.

It is a difficult problem to prede-termine whether the tumor of posteriorpart of the third ventricle can beremoved or not before operation,because the position of those tumorsis deep in the brain and its surroundingstructures are vitals. Thereby theoperative mortality is very high. Asit is often thought of most dangerousintracranial operation, so palliativeoperation is always performed-theTorkildsen procedure of ventriculo-cisternal drainage. In the recent years,we have made some modifications onthis operation....

It is a difficult problem to prede-termine whether the tumor of posteriorpart of the third ventricle can beremoved or not before operation,because the position of those tumorsis deep in the brain and its surroundingstructures are vitals. Thereby theoperative mortality is very high. Asit is often thought of most dangerousintracranial operation, so palliativeoperation is always performed-theTorkildsen procedure of ventriculo-cisternal drainage. In the recent years,we have made some modifications onthis operation. The improved methodfor exploring the tumor of the post partof the third ventricle is by way of theposterior longitudinal fissure and a newdesign for shunt that from the ventricleto the lateral recess of pontine cisterncan be performed within the sameoperative field at the same time. Up to now, we have done suchoperations on twenty patients and goodresults have been achieved. 80% of thepatients have got uneventful recovery.The operative mortality is 20%. Allthe survival cases were followed upafter surgery, the longest one hasbeenchecked at 42 months afteroperation.Most of the operated patients couldlook after themselves, did houseworkand some of them had returned to theirworking-posts. All the operations were performedunder general anaesthesia with hypo-thermia. In order that both explorationof the tumor of the third ventricle andthe shunt procedure from the ventricleto the lateral recess of pontine cisterncan be fulfiled simultanously in thesame operative field, we have combinedthe method of Brunner-Dandy withNaffziger as the surgical approach ofexposure by lifting occipital lobe alongthe cerebellar tentorium through thelongitudinal fissure. A rectangular boneflap was made at the right side of theparieto-occiptal area and turned overbehind the temporal. A valve-likeincision was made on the dura materwhich was put over the middle line.After that a 3 cm long incision wascarefully made along the middle lineof the splenium by means of tractingthe right parietal lobe from the falx toexpose the corpus callosal. Then thetop of the tumor could be seen. Afrozen section of biopsy was madeimmediately to make sure that the tumorwas malignant or not. According to thelaboratory report,thereby a reasonablesurgical management of the tumor suchas total resection, partial removal orsimple biopsy accompanied with theshunt of the ventricle to the lateralrecess of pontine cistern could bechosen. On taking this method, you canget a satisfactory exposure of the tumorand also get an exact pathologicaldiagnosis. If the tumor was an ino-perable one you could place a cathetereasily in the same operative field asmentioned above. So that it would beunnecessary to perform another opera-tion of Torkildsen's procedure withina few days. If only a partial or sub-total resection of the tumor could bedone you would take postoperativeobstruction of the third ventricle intoconsideration and settled a prophylacticcatheter for shunt. To obtain the expectant results youmust stop bleeding completely and neverdamage the posterior part of transversesinus, Roland's vein, internal cerebralvein and Galen's vein during the oper-ation. While performing the operationyou must keep caution of the insidediameter of the catheter which shouldbe no less than 2 mm and must notbe twisted or kinked. The distal endof the tube should be put accurately inthe lateral recess of the pontinecistern. The ventricular drainage shouldbe continued on for 3 days after theoperation, and the corticosteroneshould be given as long as 3-7 days.