“立心”与“求道”:杨键诗歌解读

杨键是一位为当代诗坛所瞩目的诗人,他所践行的诗歌写作方式不仅是"审美",更是"求道"。这"道"是"心之道",是心灵在直面自我生命与大千世界时如何求得救赎与超越的真理。杨键把传统文化精义作为自己的精神资源,为现代汉语诗歌写作注入新的生命力,这对当下诗歌写作无疑是个宝贵的启示。

中西诗学的“象”与禅观的意义

文章简要论述了中西方立"象"、取"象"的渊源和发展,对中西方关于"象"的认识论与美学范畴和命题,特别是对中西方关于言、意、象关系进行了认识比较,剖析了中西方在立"象"、取"象"上所追求的不同,提出了中西诗学对"象"的关注的最大不同在于前者侧重立象以写意,后者则侧重求象以写实,由此发展了求真、求实、求经验实证的真实再现的艺术风格和艺术追求,而中国诗学立象的终极目的和理想是得道、明道,立言明道不足则立象。

Reinforcement selection for deep and high-stress tunnels at preliminary design stages using ground demand and support capacity approach

Underground mining is going to be deeper gradually because near surface resources are going to be depleted. Therefore, risk of seismic events in underground mines is escalating. Additionally, existence of the large ratio of horizontal to vertical stress, could be a potential reason for high-stress condition and occurrence of dynamic activities. Depending on various parameters such as the level of induced stress, rock properties, etc., ground demand changes and it is difficult to estimate. On the other hand,under seismic condition, energy dissipation and deformation capacity of supports is the most important factors, however, rock support performance factors in dynamic conditions are still under investigation.Expanding the knowledge of reinforcement behaviour and capacity, specifically that of the rockbolt as a primary element in seismic conditions, would help to develop a suitable, safe and economic support design. This paper contains various methods to estimate ground demand including the intact rock properties approach, failure thickness and ejection velocity estimation, and rockburst damage potential method. It also covers measurement methods of rockbolts energy dissipation capacities such as drop test,blasting simulating, back calculation and momentum transfer measurement methods. A large-scale dynamic test rig is also explained. Based on the findings, a table and a graph to show the applicable range of each type of rockbolts were presented. Suitable rockbolt types for various ground energy demand and deformation capacity range were categorised in the table and the graph. The presented support selection method facilitates the selection of a suitable reinforcement system at the preliminary stages of design and guides the designer to adjust the support reinforcement system based on observed ground and support reaction.

A Sample of Semi-Actuated Traffic Control versus Fixed-Time Traffic Control

Fixed-time control of traffic signals pursues the regulation of phases based on historical data of traffic demand, in this way, neglecting of the random arrival rates of traffic flow on different intersection streams causes increasing of the stops and delays and fuel consumption at the same time. Coordinated semi-actuated control due to ability to respond traffic demands on both main and secondary directions, based on road detector registration saves the coordinated features, serving the unused time to the main road, while the secondary clears early. In this paper, the authors analyzed and explained comparatively the results of LOS （level of service） parameters of the current state of control （fixed-time） with the proposed control （semi-actuated coordinated） of the artery of length 2,348 km consisted of four signalized T intersections. Highway Capacity Manual and Synchro/Sim Traffic software are used for analysis and optimization of parameters in this paper.

Analytical Modeling of Threshold Voltage for Double-Gate MOSFET Fully Comprising Quantum Mechanical Effects

The analytical solutions to 1D Schrdinger equation (in depth direction) in double gate (DG) MOSFETs are derived to calculate electron density and threshold voltage.The non uniform potential in the channel is concerned with an arbitrary depth so that the analytical solutions agree well with numerical ones.Then,an implicit expression for electron density and a closed form of threshold voltage are presented fully comprising quantum mechanical (QM) effects.This model predicts an increased electron density with an increasing channel depth in subthreshold region or mild inversion region.However,it becomes independent on channel depth in strong inversion region,which is in accordance with numerical analysis.It is also concluded that the QM model,which barely considers a box like potential in the channel,slightly over predicts threshold voltage and underestimates electron density,and the error increases with an increasing channel depth or a decreasing gate oxide thickness.

Polynomial rooting based frequency offset estimation for MIMO OFDM systems

Based on the frequency domain training sequences, the polynomial-based carrier frequency offset （CFO） estimation in multiple-input multiple-output （ MIMO ） orthogonal frequency division multiplexing （ OFDM ） systems is extensively investigated. By designing the training sequences to meet certain conditions and exploiting the Hermitian and real symmetric properties of the corresponding matrices, it is found that the roots of the polynomials corresponding to the cost functions are pairwise and that both meger CFO and fractional CFO can be estimated by the direct polynomial rooting approach. By analyzing the polynomials corresponding to the cost functions and their derivatives, it is shown that they have a common polynomial factor and the former can be expressed in a quadratic form of the common polynomial factor. Analytical results further reveal that the derivative polynomial rooting approach is equivalent to the direct one in estimation at the same signal-to-noise ratio（SNR） value and that the latter is superior to the former in complexity. Simulation results agree well with analytical results.

Nay or Jain Nyay 1： Existence Inferred from Affirmed Assertions

The Jain logic （Nay） addresses concerns elicited by sense experience of observable and measurable reality. Reality is what it is, and it exists independent of the observer. The last Jain Tirthankar Mahaveer suggested that organisms interact with such realities for survival needs and become concerned about the consequences. He suggested a code of conduct for reality-based behaviors to address concerns. Perceptions and impressions provide measures （praman） of information in sense experience, and with other evidence guide choices and decisions to act and bear consequences. Ethical behaviors rooted in reality have desirable consequences, and inconsistent and contradictory behaviors are undesirable consequences. Omniscience （God, Brahm） is discarded as a self-referential ad hoc construct inconsistent and contradictory to real world behaviors. This article is survey of assumptions and models to represent, interpret, and validate knowledge that begins with logical deduction for inference （anuman） based on evidence from sense experience （Jain 2011）. Secular and atheistic thrust of thought and practice encourages reasoning and open-ended search with affirmed assertions and independent evidence. Individual identity （atm） emerges with consistent behaviors to overcome fallibility and unreliability by minimizing doubt （Syad-Saptbhangi Nay）. The first Tirthankar Rishabh Nath （ca. 2700 BC） suggested that the content （sat） of real and abstract objects and concerns during a change is conserved as the net balance of the inputs and outputs （Tatia 1994）. Identity and content of assertions and evidence is also conserved during logical manipulations for reasoning. Each assertion and its negation are to be affirmed with independent evidence, and lack of evidence for presence is not necessarily the evidence for either non-absence or non-existence.

Continual Process of Self-Making： Hester Prynne＇s Life Is an Instance of Sublimation

This paper attempts to demonstrate Hester Prynne＇s, in Nathaniel Hawthorne＇s romantic work of fiction The Scarlet Letter （1994）, sublimation of her sexual impulses into identifying with the socially acceptable humanitarian actions, and societal demands in order to avoid the confrontation with the scorn of the people of Boston, her sexual urge, and with her weakness. Hester＇s libidinal energy was channeled into socially approved activities in her self-devoted years that made up her identity and reality. The scarlet letter ceased to be a stigma which once attracted the world＇s scorn and bitterness, later looked upon with reverence, and transformed into a thing to be sorrowed over. She had not ignored a large part of reality of her life （the past and present）. If she ignored her past she would entirely detach it from the present. She integrated her stigma into her life in the continual process of self-making, and thereby projecting herself into the future

Research on the sales channels of the household appliances market

Chinese traditional sales channels are seriously attacked by the new ones. Household appliances industry will realize the specialized divisions of. development, manufacture, sale and services completely. The model of sales channel in marketing is set as the core of this research; the merits and demerits of different sales channels are analyzed; the complicated selective relationship and the conflicts among the manufacturer, middlemen, and ultimate consumers, and the solutions to present multi-channels market and the developments of the sales channels are elaborated in an overall view; the opinion that the only way to develop this industry is raised to establish the competitive sales channels. The aim is to let local household appliances industry use the natural merits to build up a suitable channel rapidly and efficiently, and to speed up the self development and oeffection.

J. M. Keynes＇ paradox： The saving glut

The present paper offers an opportunity to explore Keynes＇ contribution to our understanding of crisis by returning to him seminal contribution in the theory of the effective demand. The analysis contrasts this approach with the neoclassical orthodoxy regarding the theory of the interest rate and the relation between saving and investment. The author poses the fundamental question： Can a policy of stimulating saving promote investment？ By using the ＂Saving Paradox＂ presented in chapter sixteen, as a framework for interpreting Bernanke＇s description of the saving glut and the current account deficit of the U.S. economy, the author offers an answer that is useful for understanding the current situation. The author also shows how moral hazard plays a significant role in the current crisis.

Video coding bit allocation algorithm over wireless transmission channel

For two-way video communications over wireless channels using the automatic repeat request (ARQ) retransmission scheme, TMN8 rate control scheme is not effective in minimizing the number of frames skipped and cannot guarantee video quality during the retransmissions of error packets. This paper presents a joint source channel bit allocation scheme that allocates target bits according to encoder buffer fullness and estimation of channel condition by retransmission information. The results obtained from implementing our scheme in H.263+coder over wireless channel model show that our proposed scheme encodes the video sequences with lower and steadier buffer delay, fewer frames skipped and higher average PSNR compared to TMN8.

Network Intelligence Capability Requirements and Standards System

It is discussed in this paper the capability requirements of modern communication industry for smart pipe or Network Intelligence Capability Enhancement （NICE）, Domestic and international researches on smart pipe are elaborated in the essay as well.

Functional imaging and endoscopy

The emergence of endoscopy for the diagnosis of gastrointestinal diseases and the treatment of gastrointestinal diseases has brought great changes.The mere observation of anatomy with the imaging mode using modern endoscopy has played a significant role in this regard.However,increasing numbers of endoscopies have exposed additional deficiencies and defects such as anatomically similar diseases.Endoscopy can be used to examine lesions that are difficult to identify and diagnose.Early disease detection requires that substantive changes in biological function should be observed,but in the absence of marked morphological changes,endoscopic detection and diagnosis are difficult.Disease detection requires not only anatomic but also functional imaging to achieve a comprehensive interpretation and understanding.Therefore,we must ask if endoscopic examination can be integrated with both anatomic imaging and functional imaging.In recent years,as molecular biology and medical imaging technology have further developed,more functional imaging methods have emerged.This paper is a review of the literature related to endoscopic optical imaging methods in the hopes of initiating integration of functional imaging and anatomical imaging to yield a new and more effective type of endoscopy.

Traffic-Aware Channelization Medium Access Control for Wireless Ad Hoc Networks

Existing multi-channel Medium Access Control (MAC) protocols have been demonstrated to significantly increase wireless network performance compared to single channel MAC protocols. Traditionally, the channelization structure in IEEE 802.11 based wireless networks is pre-configured, and the entire available spectrum is divided into subchannels and equal channel widths. In contrast, this paper presents a Traffic-Aware Channelization MAC (TAC-MAC) protocol for wireless ad hoc networks, where each node is equipped with a single half duplex transceiver. TAC-MAC works in a distributed, fine-grai-ned manner, which dynamically divides variable-width subchannels and allocates subchannel width based on the Orthogonal Frequency Division Multiplexing (OFDM) technique according to the traffic demands of nodes. Simulations show that the TAC-MAC can significantly improve network throughput and reduce packet delay compared with both fixed-width multi-channel MAC and single channel 802.11 protocols, which illustrates a new paradigm for high-efficient multi-channel MAC design in wireless ad hoc networks.

A Research on the Construction of International Training Course for Maritime Talents Based on the Initiative of ＂One Belt and One Road＂

Based on the initiative of ＂One Belt and One Road＂ and the demand analysis of the international shipping market for high-quality maritime talents with good skills of communicating ability and international vision, this paper analyzes the feasibility, necessity, construction goal, construction principle, construction content, tutorial setting, tutorial structure and tutorial demonstration and explore how＂ to make China maritime universities＇ have ability to train the international students in an efficient and orderly manner; by investigating the relevant enterprises and institutions, and presents a plan for the construction of ＂One Hundred Courses, One Thousand Class-Hours＂.

CSA 016-2013, Interface requirements for application of LED lighting: Street/tunnel light consisting of LED module with heatsink and separated control gear

With the advantages of long lifetime, high lighting effect and non-pollution, LED lighting has taken a leading role in the lighting sector. LED street and tunnel lights have no unified product interface, so the products of different enterprises cannot interchange with each other, restraining the development of the whole industry due to the large-scale production problem. The alliance standard CSA 016-2013 has been approved as a national standard project, paving the way for the orderly development of LED industry. Interpreting the CSA 016 standard, the paper expounds on the technical requirements for interchangeable interface in the optical, mechanical, electrical and thermal aspects.

Quantum-Mechanical Study on Surrounding-Gate Metal-Oxide-Semiconductor Field-Effect Transistors

As the channel length of metal-oxide-semiconductor field-effect transistors （MOSFETs） scales into the nanometer regime, quantum mechanical effects are becoming more and more significant. In this work, a model for the surrounding-gate （SG） nMOSFET is developed. The SchrSdinger equation is solved analytically. Some of the solutions are verified via results obtained from simulations. It is found that the percentage of the electrons with lighter conductivity mass increases as the silicon body radius decreases, or as the gate voltage reduces, or as the temperature decreases. The eentroid of inversion-layer is driven away from the silicon-oxide interface towards the silicon body, therefore the carriers will suffer less scattering from the interface and the electrons effective mobility of the SG nMOSFETs will be enhanced.

Microscopic Fuzzy Urban Traffic Simulation with Variable Demand

Some microscopic traffic simulations on urban road network are developed up to now. However, the effect of urban transport policy in the local city is influenced with the complex interaction of automobile traffic and public transport traffic. Particularly, behaviours of vehicles should be described with the fuzziness of the subjective recognition and operation. On the other hand, the trip makers are influenced by various transport policies in terms of mode choice behaviour. The change in mode choice behaviour and number of public transport mode users would eventually affect traffic flow conditions on road network. Modal spilt and traffic conditions of a network are interrelated. Therefore, the present study mainly aims to integrate mode choice model and microscopic traffic simulation model based on fuzzy logic. In the study, the fuzzy logic based mode choice model is proposed. The proposed mode choice model and the existing microscopic traffic simulation model are combined. The developed model has been applied on real urban network to demonstrate the effectiveness of the installation of LRT system. Finally, it is helpful for evaluation of transport policy that the fuzzy logic based microscopic traffic simulation with modal choice model has been constructed.

Health service needs of women with reproductive tract infections in selected areas of China

OBJECTIVE: To provide insight into the psychosocial factors underlying the utilisation of health services by women with reproductive tract infection (RTI) symptoms. METHODS: A cross-sectional study, adopting Aday and Andersen' s Social Behaviour Model, was conducted between 1998 and 1999 in Chinese Hebei province and Beijing. A total of 864 eligible married women (age 21 to 60 years) were face to face interviewed. RESULTS: The percentage of self-reported symptoms of RTIs in urban and rural women was 35.6 and 46.8, respectively; the proportion of women with RTIs who utilised health services was 27.5% and 26.7%, respectively. Compared to urban women, rural women had less knowledge on RTIs and more traditional beliefs, and were more satisfied with local health services. The results of logistic regression analysis showed that the common factor influencing health service utilisation in women with RTIs was current experience of RTIs. Knowledge about self-medication, perceived social stigma attached to RTIs, prior experience of RTIs, family income and perceived severity of RTIs were also predictors of utilisation of health services in rural women with RTIs. Satisfaction with health providers, information received from health providers, prior experience of RTIs, occupation and medical care coverage were predictors of utilisation of health services in urban women with RTIs. CONCLUSION: The prevalence of RTIs is high, but the rate of seeking health services is low. There is a great need for emphasizing culturally acceptable reproductive health education in different places to improve women' s ability for self-care. Regular medical check-ups for women are also important. It is necessary to improve the quality of health service, complete the reform of health insurance and alleviate women' s social stigma related to RTIs, giving women social and moral support.

The orbital g-factor and related sum rules

The renormalization of the orbital g-factor in nuclei is discussed on the basis of gauge invariance.The relation of the orbital g-factor to the integrated E1 photoabsorption cross section is reviewed,and its relation to the M1 sum rule for the scissors mode of deformed nuclei is examined.