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Search Results: 1 - 10 of 42474 matches for " Dong Fang "
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Study on Action Skill Feature and Professional Potential of Students with Mental Retardation  [PDF]
Qi Dong, Junming Fang, Yaodan Hao
Creative Education (CE) , 2012, DOI: 10.4236/ce.2012.37180
Abstract: A total of 217 mentally retarded people in auxiliary schools and sunshine homes took the action test implemented by self-developed testing tools. The results of statistical treatment indicates as follows: there is no significant difference in projects featuring imitation between the moderate or severe and the mild mentally retarded people; The relationship between intelligence quotient (IQ) and open action skills is obvious closer than the relationship between intelligence quotient and closed action skills; The action skills of adult mentally retarded in sunshine homes are better than those of similar IQ level in auxiliary schools. Through exploratory factor analysis of test data, we abstractly put forward three factors: ability to respond, imitate and speed, with the expectation to improve the pertinence of action skills training for the mentally retarded people. In this paper, it is stated that the moderate or severe mentally retarded can adapt themselves to certain professional positions after guided learning and training.
The internal structure of Early Cambrian fossil embryo Olivooides revealed in the light of Synchrotron X-ray Tomographic Microscopy
Fang Chen,XiPing Dong
Chinese Science Bulletin , 2008, DOI: 10.1007/s11434-008-0452-9
Abstract: Countless fossil embryo Olivooides and the hatched larvae, juveniles and adults (the latter two kinds are Punctatus) are recovered by means of acid maceration from the fine-crystalline to medium-crystalline phosphatic limestone and phosphatic micrite of Early Cambrian Kuanchuanpu Formation at the Shizhonggou section, near Kuanchuanpu Village, Ningqiang County, Shaanxi Province, China. Using the technique of Synchrotron X-ray Tomographic Microscopy, the 3D internal structure of Olivooides and Punctatus is reconstructed. The morphological and statistic analyses are also given to the stellae structure of Olivooides and Punctatus, which indicates that this structure is a result of adaptive evolution to a lifestyle of fast-attaching after hatching, probably with the function of mucilage secretion. The internal structure of Punctatus is described and discussed. The ovum-like structure, a common internal feature of Punctatus, is considered as the taphonomic structure, rather than eggs or other biological structure. This structure is thought to be formed after the burial of the animal and before or during the mineralization. The original internal structure of Punctatus is assumed to be tabulae-filled, with soft body grown on them.
Linear Physical-layer Network Coding in Galois Field for Rayleigh fading 2-Way Relay Channels
Dong Fang,Alister Burr
Mathematics , 2012,
Abstract: In this paper, we propose a novel linear physicallayer network coding (LPNC) for Rayleigh fading 2-way relay channels (2-WRC). Rather than the simple modulo-2 (bit-XOR) operation, the relay directly maps the superimposed signal of the two users into the linear network coded combination in GF(2^2) by multiplying the user data by properly selected generator matrix. We derive the constellation constrained capacities for LPNC and 5QAM denoise-and forward (5QAM-DNF) [2] and further explicitly characterize the capacity difference between LPNC and 5QAM-DNF. Based on our analysis and simulation, we highlight that without employing the irregular 5QAM mapping and sacrificing the spectral efficiency, our LPNC in GF(2^2) is superior to 5QAM-DNF scheme in low SNR regime while they achieve equal performance in the the moderate-to-high SNR regime.
Chaotic Optimal Operation of Hydropower Station with Ecology Consideration  [PDF]
Xianfeng Huang, Guohua Fang, Yuqin Gao, Qianjin Dong
Energy and Power Engineering (EPE) , 2010, DOI: 10.4236/epe.2010.23027
Abstract: Traditional optimal operation of hydropower station usually has two problems. One is that the optimal algorithm hasn’t high efficiency, and the other is that the optimal operation model pays little attention to ecology. And with the development of electric power market, the generated benefit is concerned instead of generated energy. Based on the analysis of time-varying electricity price policy, an optimal operation model of hydropower station reservoir with ecology consideration is established. The model takes the maximum annual power generation benefit, the maximum output of the minimal output stage in the year and the minimum shortage of eco-environment demand as the objectives, and reservoir water quantity balance, reservoir storage capacity, reservoir discharge flow and hydropower station output and nonnegative variable as the constraints. To solve the optimal model, a chaotic optimization genetic algorithm which combines the ergodicity of chaos and the inversion property of genetic algorithm is exploited. An example is given, which shows that the proposed model and algorithm are scientific and feasible to deal with the optimal operation of hydropower station.
The Analysis of Bilateral Power Supply for AC Electrified Railway  [PDF]
Zhengqing Han, Zhen Fang, Changqing Li, Dong Li
Energy and Power Engineering (EPE) , 2013, DOI: 10.4236/epe.2013.54B093

In China, the unilateral power supply has been used in AC electrified railway, which depends on the management mode of power system. For better economic and technical indexes, all-parallel AT traction system is widely used in passenger dedicated line. In this paper, the equivalent circuit model of unilateral power supply and bilateral power supply is investigated, and based on this model, the difference between unilateral power supply impedance and bilateral power supply impedance is discussed.

Transfer Learning for Speech and Language Processing
Dong Wang,Thomas Fang Zheng
Computer Science , 2015,
Abstract: Transfer learning is a vital technique that generalizes models trained for one setting or task to other settings or tasks. For example in speech recognition, an acoustic model trained for one language can be used to recognize speech in another language, with little or no re-training data. Transfer learning is closely related to multi-task learning (cross-lingual vs. multilingual), and is traditionally studied in the name of `model adaptation'. Recent advance in deep learning shows that transfer learning becomes much easier and more effective with high-level abstract features learned by deep models, and the `transfer' can be conducted not only between data distributions and data types, but also between model structures (e.g., shallow nets and deep nets) or even model types (e.g., Bayesian models and neural models). This review paper summarizes some recent prominent research towards this direction, particularly for speech and language processing. We also report some results from our group and highlight the potential of this very interesting research field.
A New Gradient Fidelity Term for Avoiding Staircasing Effect
Fang-Fang Dong,Zhen Liu,

计算机科学技术学报 , 2009,
The relationship between hypoxia-inducible factor-1α and cartilage degeneration in osteoarthritis: a review
Fang-fang Dong,Chong-jian Zhou
Zhong Xi Yi Jie He Xue Bao , 2012,
Abstract: Osteoarthritis is one of the most common diseases seen in clinical practice. Cartilage survives in the hypoxic microenvironment. Hypoxia-inducible factor-1α (HIF-1α) is a key nuclear transcription factor which mediates the hypoxic response of cells. HIF-1α gene is an important regulator for the adaptation of articular cartilage to the hypoxic environment. It is important for formation of articular cartilage, energy metabolism and matrix synthesis. If the HIF-1α gene is knocked out, the cartilage can not maintain their normal morphology and function, which may lead to cartilage degeneration, and result in diseases such as osteoarthritis. Chinese herbal medicines can regulate the expression of HIF-1α gene and supply a therapy method for osteoarthritis. In this paper, the authors review the situation of the correlation between HIF-1α and osteoarthritis cartilage degeneration examined in recent years.
Determination of the Triplet State Lifetime of C60 /Toluene Solution and C60 Thin Films by Pump-Probe Method  [PDF]
Cheng Bao Yao, Elisee Kponou, Yun Dong Zhang, Jin Fang Wang, Ping Yuan
Optics and Photonics Journal (OPJ) , 2011, DOI: 10.4236/opj.2011.12013
Abstract: Excited state lifetimes of C60/toluene solution and C60 films macromolecular were measured by pump-probe method. Relation between optical switching effect of material and pulse width of pumping field is briefly described. It is found that the faster switching speed of light is, the triplet state lifetime is shorter. A He-Ne laser, as a probe, passed through the sample in the pump-probe experiment. All-optical switching effect was realized. Changing the optical power of the pumping field, switching response of the sample and modulation depth were investigated. In certain experimental conditions, relation between transmission through the sample and response were measured by an oscilloscope. Triple state lifetime of the molecule is speculated. The result showed that C60/toluene solution and C60 film have a fast response time. They would be utilized in some applications, such as optical switches, photonic devices.
Routine clinical administration of 4-week alverine citrate and simeticone combination relief global IBS symptoms  [PDF]
Xiangping Wang, Yikuan Feng, Jiansheng Li, Zibin Tian, Dong Wei, Lingzhi Qi, Lifeng Fang, Kaichun Wu
Open Journal of Gastroenterology (OJGas) , 2014, DOI: 10.4236/ojgas.2014.41006
Abstract: Introduction: The primary treatment aim for irritable bowel syndrome (IBS) is to relieve overall symptoms which can significantly impair the patient’s quality of life (QOL); however, it generally requires a high pill burden that may be improved by administration of combinatorial formulations. Thus, the effectiveness of alverine citrate and simeticone combination (ACS) for global symptom relief for IBS was investigated in this non-interventional study. Patients and Methods: ROME III IBS patients (n = 640; 52.3% male: mean age: 43.6 ± 12.5 years) with abdominal pain and discomfort ≥60 of 0-100 visual analogue scale (VAS) were included in a prospective, multicenter, non-interventional study at 26 Chinese sites from December 2010 to January 2012. Patients received alverine citrate (60 mg) with simeticone (300 mg) (ACS) 3× daily for 4 weeks. Pain/discomfort and bloating/distension were assessed by VAS. Global symptoms and QOL were assessed by 7-point and 5-point Likert scales, respectively. Post-treatment bowel function was assessed by Bristol Stool Form Scale (BSFS) and treatment-related adverse events (AEs) were recorded. Results: Of 640 patients, 540 (84.4%) completed the study, and 100 (15.6%) withdrew. In total, 87.5% reported bloating at baseline. After 4-week ACS treatment, 89.1% reported global symptom improvement. Furthermore, 4-week ACS treatment reduced pain and bloated VAS scores significantly from 78.4 ± 9.9 to 32.1 ± 21.0 and from 63.2 ± 27.2 to 22.6 ± 20.9, respectively (both p < 0.001), decreased diarrhea or constipation occurrence from 67.2% to 10.2% (p < 0.001), and reduced IBS impact on QOL with only 2 treatment-related AEs. Conclusion: Routine clinical administration of ACS for IBS over a 4-week period provides effective relief of IBS symptoms and improves QOL in IBS patients.
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