The simulation results suggest that , at the end of the scanning line , the dissymmetric temperature field and the great temperature gradient result in the balling phenomenon and great thermal stress , which could lead to the destruction of the sintering samples in this region . because of the coupling effect between scanning lines , the balling phenomenon is increased as the increase of the scanning lines , thus the over short scanning lines should be avoided in the sintering process . different scanning strategies have significant influence on the sintering 模擬結(jié)果表明,掃描端點溫度場的不對稱及較大的溫度梯度造成了端點球化現(xiàn)象,并在端點處產(chǎn)生較大的熱應(yīng)力,使燒結(jié)成形試樣易在此處破壞;激光掃描線間的耦合作用使端點球化現(xiàn)象隨掃描線的增加而逐漸顯著,燒結(jié)時應(yīng)避免過短的掃描線;不同掃描策略對燒結(jié)成形有很大影響,交替掃描會影響燒結(jié)試樣的質(zhì)量,實際制造時應(yīng)采用單向掃描策略。
Generally , the disassembly strategy can be divided into the liner - scanning strategy and recursion - scanning strategy based on control flow . through researching on the recursion - scanning strategy based on control flow and instruction sets of many processors , this essay proposes a kind of disassembly strategy based on the static program flow traversal graph , and makes use of six strategies to pick up the hidden program sections from the data sections , thereby raising the precision of the disassembly result 反匯編策略大體可以分為線性掃描策略和基于控制流的遞歸掃描策略,該文通過對基于控制流的遞歸掃描策略以及多款處理器指令系統(tǒng)的研究,提出了一種基于程序靜態(tài)流程遍歷圖的反匯編策略,使用6種策略將隱匿于數(shù)據(jù)段中的程序段提取出來,提高了反匯編結(jié)果的精確度。