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[en] At an altitude of 1890m, a pretest with an Air Shower (AS) core selector and a small acoustic array set up in an anechoic pool with a volume of 20x7x7 cu m was performed, beginning in Aug. 1984. In analyzing the waveforms recorded during the effective working time of 186 hrs, three acoustic signals which cannot be explained as coming from any source other than AS cores were obtained, and an estimation of related parameters was made
[en] The Online Event Display for Delphia has been developed for 3 years using Object Oriented methods and tools. The first experiment was presented at CHEP'92. After several cycles in the software life, the authors are now in position to evaluate the benefits of such an approach
[en] Highlights: • Modular silica gel–water adsorption chiller was designed and tested. • Single/double effect LiBr–water absorption chiller was operated and tested. • 1.n effect LiBr–water absorption chiller was proposed, designed and tested. • CaCl_2/AC–ammonia adsorption refrigerator was introduced and tested. • NH_3–H_2O absorption ice maker with better internal heat recovery was introduced. - Abstract: Solar driven air conditioning systems can cope with solar collectors working in a wide range of temperatures. Sorption systems, including absorption and adsorption refrigeration systems, are among the best choices for solar cooling. Five systems including modular silica gel–water adsorption chiller, single/double effect LiBr–water absorption chiller, 1.n effect LiBr–water absorption chiller, CaCl_2/AC (activated carbon)–ammonia adsorption refrigerator, and the water–ammonia absorption ice maker with better internal heat recovery were presented. The above five sorption chillers/refrigerators work under various driven temperatures and fulfill different refrigeration demands. The thermodynamic design and system development of the systems were shown. All these systems have improvements in comparison with existing systems and may offer good options for high efficient solar cooling in the near future.
[en] For several years in connection with the migration towards UNIX system, software tools have been developed in the laboratory. They allow the nuclear physicist community to achieve the complete analysis of experimental data. They comply with the requirements imposed by the development of multi-detectors. A special attention has been devoted to ergonomic aspects and configuration possibilities. (authors)
[en] Highlights: • A hybrid heating method in VPI for CFETR PF coil have been described. • A mock-up have been design and manufactured to verify the method. • The temperature on the coil during VPI process can satisfy the resin curing requirement. - Abstract: The poloidal field (PF) coils are one of the CFETR magnet system which winding by CICC conductor. In order to meet the design requirements of demanding, the coil insulation shall be processed by vacuum pressure impregnation (VPI). After the resin impregnating the coil insulation, a subsequent high temperature cure is imposed for a relatively long period of time to fully cure the resin throughout the insulation. During the curing, the temperature must be controlled even on whole coil. All CFETR PF coil are fabricated by stacking several double-pancakes (DP), due to the complex structure, the common outer heating method can hardly satisfy the curing temperature requirement. So an inner heating which assisted by common outer heating (hybrid heating) method was researched. The experiment results shows under hybrid heating method, the curing temperature on the coil insulation can guaranteed even and the insulation quality can satisfy design requirement.
[en] Dominant male sterility is one of the two most important types of male sterility. However, its underlying mechanism has not yet been characterized. In this study, the anthers of OsDMS-2 dominant male sterile mutant were shorter and whiter than wild-type anthers. Moreover, pollen abundance was lower in mutant than wild-type anthers, with most mutant pollen grains being small and malformed. Inheritance analysis showed that male sterility was controlled by one dominant gene. However, gene mapping suggested that two loci, OsDMS-2A (on chromosome 2) and OsDMS-2B (on chromosome 8), might be responsible for the dominant sterility of the OsDMS-2 mutant. The flanking markers of OsDMS-2A are C2D11 and C2D12, with genetic distances of 0.66 and 0.33 cM, respectively. The C8D3 and C8D7 markers flanking OsDMS-2B have genetic distances of 1.32 and 2.32 cM, respectively. Molecular mapping disagreeing with classical genetic analysis indicates OsDMS-2 is a novel and valuable mutant for understanding male sterility genetic mechanism. (author)
[en] In this work, proton and arsenic ion implantation induced intermixing in AlInGaAs/InGaAs quantum wells (QWs) has been studied and compared with InGaAsP/InGaAs QWs. The different interdiffusion results obtained from the two QW structures are compared and discussed based on thermal annealing studies, different implantation ion species, dynamic annealing effects of barrier layers, as well as interdiffusion mechanisms.
[en] In this work, controlled band gap modifications in InGaAsP/InGaAs and AlInGaAs/InGaAs quantum well structures using different encapsulating layers are studied and compared. Photoluminescence spectroscopy was used for monitoring the changes in the optical properties of the quantum wells due to interdiffusion. X-ray photoelectron spectroscopy was used to investigate the interfacial reaction between the QW structure and dielectric capping layer. The results are compared and discussed based on the sublattices' interdiffusion, promotion or suppression under different dielectric capping layers