原标题：深潜水声世界 倾听海洋"心跳" 7月11日，辽阔的海洋深处，仿佛传来一声低沉的呜咽。我国水声工程、信息科学和水中兵器领域 杰出的科学家与教育家，航空声呐领域的开拓者和奠基人，中国工程院院士、西北工业大学教授马远良 在陕西省西安市溘然长逝，享年87岁。 倾注毕生心血，马远良用智慧倾听海洋的"心跳"，以赤子之心在深蓝疆域镌刻下永不消逝的声波航 迹。他所诠释的"敢想敢做、敢闯敢拼"的科学家精神，如同他毕生追寻的深海声呐信号，穿透时光的阻 隔，持续指引着后来者探索未知航程。 从"娃娃兵"到水声巨擘 1938年，马远良生于四川隆昌。他少年聪慧，志在北京大学物理系。然而，时代的召唤改变了他的 航向。1956年他毅然投身国防，成为西北工学院（西北工业大学前身）的一名学生。1958年，学校开办 水声工程专业，他成为首批赴中国人民解放军军事工程学院深造的8名学子之一，一头扎进神秘莫测 的"水声"世界。 深造期间，他初露锋芒。1959年暑假，他领头研制的"K4声管测量装置"，作为"国庆十周年"献礼展 出。这"麻雀虽小，五脏俱全"的装置首战告捷，点燃了他对水声事业的炽热火焰。1961年，他提前结束 深造返回西北工业大学投身 ...

Company Overview - Beijing Zhongke Haixun Digital Technology Co., Ltd. was established in 2005 and is headquartered in the Zhongguancun Science Park, focusing on high-tech products in marine engineering and underwater acoustics [1] - The company specializes in the development of high-performance signal processing platforms, sonar systems, simulation systems, and big data applications [1] Stock Performance - Zhongke Haixun has experienced a decline for seven consecutive trading days, with a cumulative drop of -13.41% [1] - The fund "Changcheng Jiujia Innovation Growth Mixed A" has entered the top ten shareholders of Zhongke Haixun and is a new addition in the first quarter of this year [1] Fund Performance - The year-to-date return for Changcheng Jiujia Innovation Growth Mixed A is -2.36%, ranking 1401 out of 2008 in its category [2] - The fund manager, You Guoliang, has been with Changcheng Fund Management Co., Ltd. since August 2019 and has managed various funds [3][4] Fund Manager Background - You Guoliang holds a master's degree and has previously worked at several securities and asset management companies before joining Changcheng Fund [3][4] - He has managed the "Changcheng Jiujia Innovation Growth Flexible Allocation Mixed Fund" since October 2019 [4]