The physics and metaphysics of Tychistic Bohmian Mechanics

The paper takes up Bell's (1987) “Everett (?) theory” and develops it further. The resulting theory is about the system of all particles in the universe, each located in ordinary, 3-dimensional space. This many-particle system as a whole performs random jumps through 3N-dimensional configuration space – hence “Tychistic Bohmian Mechanics” (TBM). The distribution of its spontaneous localisations in configuration space is given by the Born Rule probability measure for the universal wavefunction. Contra Bell, the theory is argued to satisfy the minimal desiderata for a Bohmian theory within the Primitive Ontology framework (for which we offer a metaphysically more perspicuous formulation than is customary). TBM's formalism is that of ordinary Bohmian Mechanics (BM), without the postulate of continuous particle trajectories and their deterministic dynamics. This “rump formalism” receives, however, a different interpretation. We defend TBM as an empirically adequate and coherent quantum theory. Objections voiced by Bell and Maudlin are rebutted. The “for all practical purposes”-classical, Everettian worlds (i.e. quasi-classical histories) exist sequentially in TBM (rather than simultaneously, as in the Everett interpretation). In a temporally coarse-grained sense, they quasi-persist. By contrast, the individual particles themselves cease to persist.     

厄米对称空间上的非线性 Schrdinger 方程的量子反散射方法 Ⅰ:C.Ⅰ.情形

本文应用量子反散射方法研究厄米对称空间C.I.上的非线性Schr(?)dinger 方程。通过求解经典和量子Yang-Baxter 关系,建立了散射数据之间的经典泊松括号和量子对易关系。我们的结果表明,量子R 矩阵和经典r 矩阵满足通常的Izergin-Korepin 关系。     

烧结温度对Li-Ti-Zn微波铁氧体的影响

本文报道在不同温度(970—1050℃)下烧结的 Li-Ti-Zn 微波铁氧体样品的磁滞参数和穆斯堡尔谱.实验结果表明1030℃是这种微波铁氧体的最佳烧结温度.     

二碳和酚系有机化合物生化降解性能的研究

作者利用 Warburg 呼吸仪对二碳有机物及酚系有机物的生化降解性能进行了研究。首先对 Lamb 分类的第三类基质的 R-C 曲线进行了科学的划分,使得讨论简明扼要。通过做不同基质的 R-C 曲线,讨论了各物质的相对耗氧速率的变化情况;通过对不同基质氧化百分数及其去除率的计算,了解到各该物质的分解与合成的比例关系。     

我国钩肢带马陆Polydesmus hamatus Loksa,1960的种名订正及描述(倍足纲:带马陆目:带马陆科)

经查证,我国贵州产的钩肢带马陆Polydesmus hamatus Loksa,1960与欧洲早已报道过的一种带马陆Polydesmus hamatus Verheoff,1897为异物同名。根据国际动物命名法规关于同名律的规定,现将我国产的带马陆重新定名为贵州带马陆Polydesmus guizhouensis Chen et Meng,nom.nov..并对该种进行了详细的描述。     

番茄芽期和苗期过氧化物同工酶分析

本文用聚丙烯酰胺凝胶电泳对番茄芽期(双子叶展开期)和苗期(四片真叶展开期)过氧化物同工酶进行了比较分析,实验结果表明,过氧化物同工酶酶带数芽期10—13条,苗期13—17条,芽期酶带数少于苗期酶带数。而且番茄品种间芽期酶谱差异性大于苗期酶谱差异性。对番茄芽期和苗期样品混合点样,电泳染色。实验结果表明,其过氧化物同工酶酶带与芽期、苗期酶带完全吻合,没有出现新的酶带。说明番茄茅期和苗期过氧化物同工酶酶谱的差异,只是基因表达顺序上的差异。     

天然富铁黑云母中Fe~(2 )、Fe~(3 )的有序——无序及其岩石学意义

通过对天然富铁黑云母的化学成分及穆斯堡尔谱的分析测试,精确测定了Fe~(2 )、Fe~(3 )在黑云母八面体晶位M1、M2中的占位率,提出了描述铁的有序度参数OR及其物理意义。运用二元固溶体理想模型建立了OR值与平衡温度的关系图解及函数表达式。简略阐述了黑云母铁的有序度参数OR在花岗岩成岩作用研究中的应用。     

Hessian算子的Obstacle问题

本文证明了有Obstacle的Hessian方程的Dirichlet问题之W~(2,∞)解的存在性。