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钢琴基础课教学中技术的“圣经”
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作者 王靖一 《北方音乐》 2013年第1期97-97,共1页
《哈农钢琴练指法》涉及了钢琴常用的基本技术,包括了五指练习,音阶、琶音、双音、和弦、颤音、六度、八度等基本技巧的练习。使手指轻巧敏捷、灵活、独立、结实有力、平均发展,还能使手腕放松平稳、自然柔顺、富有弹性。对于高校音... 《哈农钢琴练指法》涉及了钢琴常用的基本技术,包括了五指练习,音阶、琶音、双音、和弦、颤音、六度、八度等基本技巧的练习。使手指轻巧敏捷、灵活、独立、结实有力、平均发展,还能使手腕放松平稳、自然柔顺、富有弹性。对于高校音乐表演专业钢琴基础课有着其特殊性。 展开更多
关键词 哈农 钢琴基础课 本技术 体会
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鱼类养殖的日常投饲及投喂技术探究
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作者 胡峻峰 徐素珍 熊林武 《福建农业》 2015年第4期167-167,共1页
在水产养殖业的蓬勃发展的当下,天然饵料已不足以满足大规模水产养殖生产的需求。因此,要想达到水产品高产、稳产的目的,必须根据各种鱼类及水产动物的不同食性和营养要求,配制出高效的饲料并实施科学的投喂技术,才能进而提高广大养殖... 在水产养殖业的蓬勃发展的当下,天然饵料已不足以满足大规模水产养殖生产的需求。因此,要想达到水产品高产、稳产的目的,必须根据各种鱼类及水产动物的不同食性和营养要求,配制出高效的饲料并实施科学的投喂技术,才能进而提高广大养殖者的经济效益。 展开更多
关键词 鱼类 养殖 饵料 投饲 投喂本技术
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小麦黄豆带田模式栽培技术规程
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作者 杜国文 徐爱华 《质量指南》 1994年第4期44共2页
制定了小麦黄豆带田模式化栽培技术规程。
关键词 栽培技术规程 精选良种1.总则1.1小麦套种黄豆充分利用空间和时间 提高光能利用率 用地与养地结合 降低成本 将小麦和黄豆按合理带幅配比 实行规格种植 即可保证小麦单位面积上稳产高产 又能促使黄豆丰产的高产、优质、高效的一种重要栽培模式和种植组合.1.2本技术
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论国际剩余价值的生产与分配
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作者 李翀 《当代经济研究》 CSSCI 北大核心 2008年第3期8-14,共7页
随着对外直接投资在世界范围内大规模地发生,形成了生产的国际化。剩余价值在不同国家进行生产和分配。在现实的世界里,不仅存在着发达国家对发展中国家的直接投资,而且存在着发达国家之间、发展中国家之间以及发展中国家对发达国家的... 随着对外直接投资在世界范围内大规模地发生,形成了生产的国际化。剩余价值在不同国家进行生产和分配。在现实的世界里,不仅存在着发达国家对发展中国家的直接投资,而且存在着发达国家之间、发展中国家之间以及发展中国家对发达国家的直接投资。在这不同类型的直接投资中,国际剩余价值的生产和分配具有不同的特点。但是从总体来看,发达国家的企业得到了绝大部分的国际剩余价值。国际剩余价值的生产和分配形成了不同类型的阶级矛盾。不同国家的资产阶级之间的矛盾是国际剩余价值分配的矛盾,世界资产阶级与世界工人阶级的矛盾是剥削与被剥削的矛盾。 展开更多
关键词 马克思经济学 国际剩余价值 国际剩余价值的生产 国际剩余价值的分配 生产国际化 直接投资 本技术构成 资本价值构成
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High-yield Seed Production Techniques of Late Japonica Hybrid Rice Tongyoujing 1
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作者 周根友 杨红燕 +1 位作者 夏华 陈启康 《Agricultural Science & Technology》 CAS 2017年第8期1413-1415,共3页
The differences in growth period and seeding to heading duration of both parents of Tongyoujing 1 are 4-6 and 3-5 d, respectively. Plant height of the male parent was 6-8 cm higher than that of the female parent, and ... The differences in growth period and seeding to heading duration of both parents of Tongyoujing 1 are 4-6 and 3-5 d, respectively. Plant height of the male parent was 6-8 cm higher than that of the female parent, and blooming time of the male parent was 30-60 min earlier than that of the female parent. The seed pro-duction technology points of Tongyoujing 1 include appropriate seeding (the differ-ence in sowing period of both parents is 3-5 d), timely transplanting, reasonable layout (ratio of rows between both parents is 2:(6-8)), strengthening variety isolation, scientific fertilizer and water management (high fertilization for male parent and ade-quate fertilization for female parent), reasonably regulating flowering period (to pro-mote flower synchronization), artificial pollination (to improve outcrossing rate), paying attention to miscel aneous plant removal and pest control and timely harvest. 展开更多
关键词 Tongyoujing 1 PARENTS Characteristics and properties Seed productiontechnology
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Study on the Landscaping Technologies for Coastal Saline-Alkali Land in Tanghai County of Tangshan City
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作者 潘冬梅 袁卫国 +3 位作者 杜金城 郭淑英 郑艳美 何新红 《Journal of Landscape Research》 2010年第2期1-4,共4页
Tanghai County is one of the counties in Tangshan City with the highest saline-alkali degree, with 80% of its land being covered by saline-alkali soils. Through studying landscaping technologies for coastal saline-alk... Tanghai County is one of the counties in Tangshan City with the highest saline-alkali degree, with 80% of its land being covered by saline-alkali soils. Through studying landscaping technologies for coastal saline-alkali land in Tanghai County, 3 dominant modes for landscaping engineering in such land were summarized as shallow underground pipe desalination technology, banding soil replacement technology and hole membrane soil replacement technology, which are different in application scope and also in cost (respectively 260, 210 and 170 yuan). 3 landscaping measures were also proposed, including promotion of suitable plant cultivation technologies, application of saline-alkali tolerant plants and biological improvement of soils. To explore economic and practical planting patterns for saline-alkali land, low-cost landscaping tests were conducted from the perspectives of improving landscaping engineering mode and optimizing landscaping measures, and the results showed that it was practical to apply low-cost landscaping patterns, and comprehensive ecological measures should be adopted to realize the sustained utilization of soil. 展开更多
关键词 Tanghai County Coastal saline-alkali land Landscaping engineering mode Low cost Sustained utilization
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Classical Communication Cost and Remote Preparation of Multi-qubit with Three-Party 被引量:3
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作者 DAI Hong-Yi ZHANG Ming KUANG Le-Man 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第7期73-76,共4页
We present a scheme for probabilistic remote preparation of multi-qubit with three-party from a sender to either of two receivers. The quantum channel is composed of a partial entangled tripartite GHZ state. We obtain... We present a scheme for probabilistic remote preparation of multi-qubit with three-party from a sender to either of two receivers. The quantum channel is composed of a partial entangled tripartite GHZ state. We obtain the successful totM probability of the scheme in the general case and special case, respectively. We also calculate total classical communication cost required in the RSP process with three-party in the general case and special case, respectively. 展开更多
关键词 remote state preparation multi-qubit classical communication cost three-party
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Comparing mass screening techniques for gastric cancer in Japan 被引量:24
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作者 Atsushi Tashiro Masatoshi Sano +2 位作者 Koichi Kinameri Kazutaka Fujita Yutaka Takeuchi 《World Journal of Gastroenterology》 SCIE CAS CSCD 2006年第30期4873-4874,共2页
AIM: To discuss the efficacy of endoscopic mass screening for gastric cancer.METHODS: The data used in this study were the results of mass screening programs for gastric cancer in Niigata City from 2002 to 2004. The... AIM: To discuss the efficacy of endoscopic mass screening for gastric cancer.METHODS: The data used in this study were the results of mass screening programs for gastric cancer in Niigata City from 2002 to 2004. The number of participants was 35089 in 2002, 34557 in 2003 and 36600 in 2004. The finding ratio referred to the final diagnosis of gastric cancer after a double check of endoscopic files and histological findings. The costs of identifying one case of gastric cancer were calculated based on the total expense for each screening program and additional close examinations. RESULTS: From the analysis of individual screening program with endoscopy, individual screening program with X-ray (ISX) and mass screening program with photofluorography (MSP) in reference to the finding ratio of gastric cancer, endoscopic examination was the best for detecting early gastric cancer, the finding ratio was 0.87% in 2004, approximately 2.7 and 4.6 times higher than those of the ISX and MSP groups. In addition, this novel method was the cheapest means regarding the cost of identifying one case of gastric cancer, which was estimated to be 1608000 Japanese yen in 2004. CONCLUSION: Endoscopic mass screening is a promising method and can be effectively applied if a sufficient number of skilled endoscopists become available to staff the system and if city offices support it. 展开更多
关键词 Mass screening Gastric cancer ENDOSCOPY Cost effectiveness
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Establishment of a novel constitutive model considering dynamic recrystallization behavior of Ti-22Al-25Nb alloy during hot deformation 被引量:7
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作者 Yu SUN Heng ZHANG +2 位作者 Zhi-peng WAN Li-li REN Lian-xi HU 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2019年第3期546-557,共12页
The hot deformation behavior of Ti-22Al-25Nb alloy fabricated by hot compressed sintering was investigated under various conditions of compression tests in the deformation temperature range of 975-1075 °C with 20... The hot deformation behavior of Ti-22Al-25Nb alloy fabricated by hot compressed sintering was investigated under various conditions of compression tests in the deformation temperature range of 975-1075 °C with 20 °C intervals and the strain rate range of 0.001-1.0 s^-1. Based on the experimental data, a novel constitutive relation combining a series of models was developed, including Zener-Hollomon parameter (Z), DRX critical model and kinetics model. The results show that the hot-deformed activation energy Q is calculated to be 410.172 kJ/mol, the ratio of critical strain (εc) to peak strain (εp) is a constant value of about 0.67. The predicted stress obtained by the established constitutive equations matches well with the true stress from experimental data. Despite large errors occur at the stage where strain rate is 0.1 s^-1 and the values of true strain are less than 0.1, the stage of large strain should be more concerned during plastic forming. Furthermore, the predicting accuracy with the DRX kinetics model was testified by an electron back-scattered diffraction (EBSD) technique. 展开更多
关键词 Ti-22Al-25Nb hot deformation constitutive relation EBSD technique
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A NEW LOW-COST DEMODULATOR FOR 2.4 GHZ ZIGBEE RECEIVERS 被引量:2
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作者 Yu Yunfeng Meng Xin +2 位作者 Xiao Shimao Ma Chengyan Ye Tianchun 《Journal of Electronics(China)》 2009年第2期252-257,共6页
A new low-cost demodulator for ZigBee receivers satisfying requirements of IEEE802.15.4 standard is presented,which is designed for ISM 2.4 GHz band and based on Zero-IF receivers.This demodulator extracts symbols dir... A new low-cost demodulator for ZigBee receivers satisfying requirements of IEEE802.15.4 standard is presented,which is designed for ISM 2.4 GHz band and based on Zero-IF receivers.This demodulator extracts symbols directly from baseband signal rather than recovering PN code chips,so its structure is simple.Two main techniques are used to improve the performance of demodulator.One is Phase-Axis Crossing Detector(PACD) which detects the phase correlation of baseband signal.The other is symbol synchronization and sampling clock correction algorithm.The result shows that this demodulator performance,Symbol Error Rate(SER) and Packet Error Rate(PER) meet IEEE 802.15.4TM standard requirements and the demodulator can handle frequency offset in excess of 200 kHz,involving a Zero-IF receiver with a Noise Figure(NF) lower than 17 dB,which is easily imple-mented in standard CMOS technology. 展开更多
关键词 ZIGBEE DEMODULATOR Minimum Shift Keying(MSK) LOW-COST Symbol synchronization
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The Energy Efficiency Gap in Maritime Transport 被引量:2
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作者 Michele Acciaro Peter Nyegaard Hoffmann Magnus Strandmyr Eide 《Journal of Shipping and Ocean Engineering》 2013年第1期1-10,共10页
There is evidence that the shipping industry could achieve energy efficiency gains through the implementation of new technologies, with considerable reductions of fuel costs and emissions to air in the sector. Althoug... There is evidence that the shipping industry could achieve energy efficiency gains through the implementation of new technologies, with considerable reductions of fuel costs and emissions to air in the sector. Although the cost reducing effects of some new technologies are well established, companies appear reluctant to innovate despite the financial and societal benefits, as a result of what is referred to as the energy efficiency gap. The global emission impacts of the shipping industry, most notably of greenhouse gases, sulphur and nitrogen oxides are increasingly attracting the attention of regulators, non-governmental organisations and the media, and shipping companies are under pressure to find new ways to reduce their emission footprint. Understanding the determinants of the energy efficiency gap in shipping is then critical in improving the environmental profile of the industry. This paper presents the results of a survey among Norwegian shipping companies aimed at gaining a better understanding of the barriers to implementation of new cost saving technologies. The paper assesses the technical barriers that have traditionally been indicated as the main cause of the energy efficiency gap in shipping. The paper results indicate that next to technical factors, important barriers are constituted also by managerial practices and legal constraints. 展开更多
关键词 Energy efficiency gap emission reduction technologies barriers maritime transport.
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Teleportation of Three-Level Multi-partite Entangled State by a Partial Three-Level Bipartite Entangled State 被引量:2
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作者 DAI Hong-Yi ZHANG Ming LI Cheng-Zu 《Communications in Theoretical Physics》 SCIE CAS CSCD 2008年第4期891-894,共4页
We present a scheme for probabilistically teleporting an unknown three-level bipartite entangled state by using a partial entangled three-level bipartite state as quantum channel This scheme can be directly generalize... We present a scheme for probabilistically teleporting an unknown three-level bipartite entangled state by using a partial entangled three-level bipartite state as quantum channel This scheme can be directly generalized to probabilistically teleport an unknown three-level k-particle entangled state by a partial three-level bipartite entangled state. A11 kinds of unitary transformations are given in detail We calculate the successful total probability and the total classical communication cost required for this scheme. 展开更多
关键词 TELEPORTATION three-level multi-partite entangled state classical communication cost
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Life Cycle Cost of Electricity Generation from Biomass Gasifier 被引量:5
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作者 Debabrata Lahiri Gokul Achariee 《Journal of Energy and Power Engineering》 2013年第11期2060-2067,共8页
India is having more than 500,000 villages of which about 85% have been electrified. But as per RGGVY (Rejiv Gandhi Grammen Vidyutikaran Yojana), the rate of village electrification is much lower as household connec... India is having more than 500,000 villages of which about 85% have been electrified. But as per RGGVY (Rejiv Gandhi Grammen Vidyutikaran Yojana), the rate of village electrification is much lower as household connectivity has been fairly low. The rest 15% villages and a larger proportion of households have to be electrified. Villages have been a major concern as cost of electrification is fairly high. The most favored alternative to any kind of users is generation of electricity from diesel generating sets and renewable sources of energy. But the capital cost of renewable energy equipments is fairly high. Gradually, there is a reduction in the prices of these systems due to availability of better technological options and they are becoming competitive to grid electricity. In this paper, an attempt has been made to calculate the cost of production of electricity from stand-alone, off-grid devices biomass gasifiers (both dual fuel and pure gas type) and compare with that of diesel generating sets by using the concept of LCC (life cycle costing) and Homer software. It is found that the cost of per unit electricity generation (kWh) has been always the lowest in comparison to diesel generating sets even if the price of biomass increases to some extent. 展开更多
关键词 Biomass gasifier DIESEL OFF-GRID life cycle costing.
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Current status and future development of solvent-based carbon capture 被引量:11
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作者 Eni Oko Meihong Wang Atuman S. Joel 《International Journal of Coal Science & Technology》 EI 2017年第1期5-14,共10页
Solvent-based carbon capture is the most commercially-ready technology for economically and sustainably reaching carbon emission reduction targets in the power sector. Globally, the technology has been deployed to dea... Solvent-based carbon capture is the most commercially-ready technology for economically and sustainably reaching carbon emission reduction targets in the power sector. Globally, the technology has been deployed to deal with flue gases from large scale power plants and different carbon-intensive industries. The success of the technology is due to significant R&D activities on the process development and decades of industrial experience on acid gas removal processes from gaseous mixtures. In this paper, current status of PCC based on chemical absorption--commercial deployment and demonstration projects, analysis of different solvents and process configurations--is reviewed. Although some successes have been recorded in developing this technology, its commercialization has been generally slow as evidenced in the cancellation of high profile projects across the world. This is partly due to the huge cost burden of the technology and unpredictable government policies. Different research directions, namely new process development involving process intensification, new solvent development and a combination of both, are discussed in this paper as possible pathways for reducing the huge cost of the technology. 展开更多
关键词 Post-combustion CO2 capture (PCC) Chemical absorption Solvents Process intensification
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Research and Application of Role Theory in Ocean Carbon Cycle Ontology Construction 被引量:1
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作者 JIA Haipeng XIONG Jing +1 位作者 XU Jianliang WANG Jipeng 《Journal of Ocean University of China》 SCIE CAS 2014年第6期979-984,共6页
Many researchers have studied the ocean carbon cycle model trying to regulate the level of CO2 in atmosphere from viewpoint of quantification. Unlike other researches, this paper analyzes the conversion process of car... Many researchers have studied the ocean carbon cycle model trying to regulate the level of CO2 in atmosphere from viewpoint of quantification. Unlike other researches, this paper analyzes the conversion process of carbon element in the ocean from the qualitative viewpoint. There are many complex roles in the ocean carbon cycle, and it is hard to represent the case that an entity plays different role in different environment. An ontology technology Hozo role theory developed by Osaka University Mizoguchi Laboratory is proposed as a solution. The basic concepts and representation mode of Hozo role theory is introduced. The conversion process of ocean carbon cycle is abstracted and an ontology model using Hozo role theory is proposed. Instead of comprehensive common ontology construction method, we propose our own ontology development steps. Then an ontology about ocean carbon cycle is built in order to describe and share the basic knowledge of ocean carbon cycle. A knowledge base of material circulation is proposed based on the ontology. Its construction framework is described and some knowledge base query examples are also illustrated. Conclusions show that the role theory can effectively solve the problem of multirole description in ocean carbon cycle, and knowledge reasoning based on ontology is also effective. 展开更多
关键词 ocean carbon cycle ontology role theory Hozo OWL-QL
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China's Position in Global Value Chains Compared with the EU,U.S.and Japan 被引量:1
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作者 赖伟娟 钟姿华 《China Economist》 2017年第6期86-99,共14页
By creating a five-country I-O model of China, EU, US, Japan and other countries, this paper decomposes gross export into nine parts and investigates the GVC positions and competitiveness of China and the other three ... By creating a five-country I-O model of China, EU, US, Japan and other countries, this paper decomposes gross export into nine parts and investigates the GVC positions and competitiveness of China and the other three economies for different sectors using real domestic trade in value-added and GVC position indices. In addition, valueadded trade is taken into consideration to identify the labor division characteristics of the four economies in the GVC, which led to the following findings: China participates primarily in the single links of the GVC at the downstream yet shows a significant tendency to move upstream in technology-intensive sectors; Japan participates primarily in the single links of the GVC at the upstream and boasts an advantage in technology-intensive sectors; the US participates in the multiple links of the GVC at the upstream with superiority in hightechnology sectors; the EU participates in the production and export of intermediate goods and final goods at both ends. 展开更多
关键词 global value chains trade in value-added GVC position indices value-added trade
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A Comparison of Chinese, Japanese, and Korean shipyard production technology 被引量:2
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作者 BAI Xue-ping NIE Wu LIU Cheng-ming 《Journal of Marine Science and Application》 2007年第2期25-29,共5页
This paper compares Chinese, Korean, and Japanese shipyard production technology. Development in the world shipbuilding over recent years has influenced focus areas related to shipyard manufacturing technologies and p... This paper compares Chinese, Korean, and Japanese shipyard production technology. Development in the world shipbuilding over recent years has influenced focus areas related to shipyard manufacturing technologies and product performance. Software systems, information technology, production technology, and local challenges of shipyards are compared with shipbuilding outputs among these three countries. Various technologies developments, shipyard production and the problems in Chinese, Japanese, and Korean shipyards are discussed respectively. Finally, future areas of research are pointed out. 展开更多
关键词 shipyard production manufacturing technologies software systems shipbuilding output future researches
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Strength and failure characteristics of brittle jointed rock-like specimens under uniaxial compression:Digital speckle technology and a particle mechanics approach 被引量:12
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作者 Rihong Cao Hang Lin Ping Cao 《International Journal of Mining Science and Technology》 EI CSCD 2018年第4期662-670,共9页
The strength and failure characteristics of most natural rock mass are influenced by discontinues such as fissures, joints, and weak surfaces. In the present study, the strength and failure behavior of ubiquitous- joi... The strength and failure characteristics of most natural rock mass are influenced by discontinues such as fissures, joints, and weak surfaces. In the present study, the strength and failure behavior of ubiquitous- joint rock-l!ke specimens under uniaxial loading have been investigated by DIC (digital image correlation) and discrete element numerical method (PFC2D). The results are obtained. Firstly, the UCSJ of spec- imens with γ= 15° or 30° shows similar tendency while α goes from 0° to 75°. With γ= 45° or 60°, the UCSJ of specimens increases when α goes from 0° to 30° and decreases after α goes beyond 30°. With γ=75°, the peak UCSJ value is reached when α=0°. The UCSJ value shows an increasing trend when α goes from 60° to 75°. Secondly, the ubiquitous-joint specimens present different failure modes for various levels of α and γ(β-α). Based on the experimental results, the failure mode of ubiquitous-joint specimens can be classified into three categories: stepped path failure, failure through parallel plane, and failure through cross plane. 展开更多
关键词 Ubiquitous-joint Digital speckle correlation technique PFC2D STRENGTH Failure mode
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Interactive point cloud blending by drag-and-drop 被引量:1
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作者 ZOU Wan-hong DING Zhan +1 位作者 YE Xiu-zi CHEN Zhi-yang 《Journal of Zhejiang University-Science A(Applied Physics & Engineering)》 SCIE EI CAS CSCD 2007年第10期1633-1641,共9页
With the rapid development of 3D digital photography and 3D digital scanning devices, massive amount of point samples can be generated in acquisition of complex, real-world objects, and thus create an urgent need for ... With the rapid development of 3D digital photography and 3D digital scanning devices, massive amount of point samples can be generated in acquisition of complex, real-world objects, and thus create an urgent need for advanced point-based processing and editing. In this paper, we present an interactive method for blending point-based geometries by dragging-and- dropping one point-based model onto another model’s surface metaphor. We first calculate a blending region based on the polygon of interest when the user drags-and-drops the model. Radial basis function is used to construct an implicit surface which smoothly interpolates with the transition regions. Continuing the drag-and-drop operation will make the system recalculate the blending regions and reconstruct the transition regions. The drag-and-drop operation can be compound in a constructive solid geometry (CSG) manner to interactively construct a complex point-based model from multiple simple ones. Experimental results showed that our method generates good quality transition regions between two raw point clouds and can effectively reduce the rate of overlapping during the blending. 展开更多
关键词 Drag-and-drop Point cloud model Interactive blending Geometry modeling
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Research and development on foam breaking and recycling technology in air-foam drilling 被引量:2
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作者 CAO Pinlu ZHANG Jincheng WU Xia HUANG Jinyun 《Global Geology》 2009年第4期204-209,214,共7页
In recent years,air-foam combining the advantages of both liquid and air drilling has been utilized as a drilling medium. Air-foam drilling has proved its efficiency in numerous situations where serious problems were ... In recent years,air-foam combining the advantages of both liquid and air drilling has been utilized as a drilling medium. Air-foam drilling has proved its efficiency in numerous situations where serious problems were encountered,such as in fractured formations and depleted or high permeable zones. However,the major disadvantage of air-foam drilling system is that the foam can only be used once,so that an extremely large pit is required to contain the foam to allow sufficient room for cuttings and for the foam to dissipate. Moreover,it needs enormous volume prepared,consuming abundance of water and ingredient additives,which results in the high cost of foam drilling. The recycling foam fluid by using foam breaking technology is the only effective method to solve these problems associated with the known foam drilling. Various types of equipment and technique have been employed to suppress foam formation in biological and process equipment in foam drilling. The study described various methods of foam breaking technology,and the trend of the foam breaking technology for foam drilling is discussed. 展开更多
关键词 air-foam drilling foam breaking RECYCLING
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