ON THE SINGULAR DIRECTIONS OF VALUE DISTRIBUTION OF HOLOMORPHIC CURVES IN P^n(C)

This article proves the existence of singular directions of value distribution theory for some transcendental holomorphic curves in the n-dimensional complex projective space P^n（C）.. An example is given to complement these results.

BOREL'S DIRECTIONS AND SHARED VALUES

In this article, we study the problems of Borel＇s directions of meromorphic func- tions concerning shared values and prove that if two meromorphie functions of infinite order share three distinct values, their Borel＇s directions are same.

A Study On the Value and Direction of Yancheng Sea Salt Culture in College Students’Ideological and Political Education

Sea Salt Culture is the crystallization of the wisdom of the ancestors and the retention of the history.With the passage of time and the innovation of salt making technology,the connotation of sea salt culture is undergoing changes.In the long process of cultural dissemination,sea salt culture permeates local university campuses and enlightens college students as well.This paper explores the profound connotation of sea salt culture in the new era,probes into the important influence of Sea Salt Culture on the ideological and political education of contemporary college students,and analyzes the practical direction for college students to inherit sea salt culture in the new period,so as to expand the breadth and width of sea salt culture.

Computationally efficient direction finding using polynomial rooting with reduced-order and real-valued computations

The root multiple signal classification（root-MUSIC） algorithm is one of the most important techniques for direction of arrival（DOA） estimation. Using a uniform linear array（ULA） composed of M sensors, this method usually estimates L signal DOAs by finding roots that lie closest to the unit circle of a（2M-1）-order polynomial, where L 〈 M. A novel efficient root-MUSIC-based method for direction estimation is presented, in which the order of polynomial is efficiently reduced to 2L. Compared with the unitary root-MUSIC（U-root-MUSIC） approach which involves real-valued computations only in the subspace decomposition stage, both tasks of subspace decomposition and polynomial rooting are implemented with real-valued computations in the new technique,which hence shows a significant efficiency advantage over most state-of-the-art techniques. Numerical simulations are conducted to verify the correctness and efficiency of the new estimator.

Optimality for Henig Proper Efficiency in Vector Optimization Involving Dini Set-Valued Directional Derivatives

This note studies the optimality conditions of vector optimization problems involving generalized convexity in locally convex spaces. Based upon the concept of Dini set-valued directional derivatives, the necessary and sufficient optimality conditions are established for Henig proper and strong minimal solutions respectively in generalized preinvex vector optimization problems.

2-D Direction-of-arrival Estimation of Real-valued Sources

A new method is presented to estimate two-dimensional （2-D） Direction-of-Arrival （DOA） angles of narrowband real-valued signals impinging on a L-shape Arrays（LA）. The basic idea of the proposed method is to increase both the effective aperture size and the number of sensors by employing the conjugate invariance property of real-valued signals. Thus, the proposed method can provide a more precise DOA and detect more signals than the Cross-Correlation Matrix Method （CCMM）. Numerical simulation results are presented to support the theory.

Assessment of Direct Eco-value of Liangzi Lake

[Obective] This study amied to evaluate the direct usage value of Liangzi Lake, like plants and animal resources and water storage value. [Method] It was measured through the market value method. The physical environment was introduced and the productivity of the lake was investigated both through the literature materials and the investigations. The market value method was clarified in this paper as well as its operation process and the application fields. [Result] Based on the introduction of the current situation in Liangzi Lake, the direct usage value was estimated as 1.32 billion Yuan/year. Plant resources value was 318 million Yuan/year; animal resources value was 675 million Yuan/year; and water storage value was 325 million Yuan/year for the three parts. [Conclusion] This paper will attract more attention to the emphasis of the reasonable development of nature sources.

Non-equal-interval direct optimizing Verhulst model that x(n) be taken as initial value and its application

To overcome the deficiencies of the existing Verhulst GM(1,1) model, based on the existing grey theory, a non-equal-interval direct optimum Verhulst GM(1,1) model is built which chooses a modified n-th component x(n) of X(0) as the starting condition of the grey differential model. It optimizes a modified β value and the background value, and takes two times fitting optimization. The new model extends equal intervals to non-equal-intervals and is suitable for general data modelling and estimating parameters of the direct Verhulst GM(1,1). The new model does not need to pre-process the primitive data, nor accumulate generating operation (AGO) and inverse accumulated generating operation (IAGO). It is not only suitable for equal interval data modelling, but also for non-equal interval data modelling. As the new information is fully used and two times fitting optimization is taken, the fitting accuracy is the highest in all existing models. The example shows that the new model is simple and practical. The new model is worth expanding on and applying in data processing or on-line monitoring for tests, social sciences and other engineering sciences.

On a Fixed Value Theorem for Directed Areas in Conic Circumscribed Polygons and Applications

Using polar equations for conic sections, we research conic circumscribed n-sided polygons（n ≥ 4） deeply on the basis of papers[1-3]. We obtain a general fixed value theorem for directed areas of some triangles in conic circumscribed n-sided polygons and derive as many as n（n - 3） concurrent points of three lines and some other collinear, equiareal results in conic circumscribed n-sided polygons（n ≥ 4）. So the results of papers[1-3] are unified.

CONE-DIRECTED CONTINGENT DERIVATIVES AND GENERALIZED PREINVEX SET-VALUED OPTIMIZATION

By using cone-directed contingent derivatives, the unified necessary and sufficient optimality conditions are given for weakly and strongly minimal elements respectively in generalized preinvex set-valued optimization.

Value of Repeated Direct Smear Sputum Examination in the Diagnosis of Pulmonary Tuberculosis

Introduction: The examination of three sputum samples per suspect has been severely criticized from a public health viewpoint and several recent trials have documented the relative inefficiency of the third smear and the necessity for confirmation of a positive smear has also been contested. Aim: This study, undertaken in Qena, Egypt, aimed to determine the usefulness of examining the second and third direct smear microscopy (DSM) specimen in the diagnosis of pulmonary TB. Patients and methods: A retrospective study using record review at TB outpatient clinic;Qena Chest Hospital, Egypt, was done from 2010-2013. Direct smear results were collected as one of the following combinations PNN, PPP, PPN, PNP, NNP, NPP, and NPN, NNN, where N is a negative and P a positive smear. The proportion of positive, first, second and third specimen were calculated. Cases were considered positive having at least one positive smear confirmed by another positive one in the absence of sputum culture. Results: Out of 9420 recorded suspects, 719 of them were positive, so smear positivity was 7.6%. The majority of them were diagnosed from the first sample (96.4%). For only 3.6% (26 of 719), the second smear was positive and a third specimen was required (NPP) to make a definitive diagnosis of TB. No recorded isolated positive or negative smears in the third sample (NNP or PPN). Conclusions: These data indicated that, in our locality with limited financial resources, the incremental yield of a second sputum direct smear examination was low, and the third one was negligible indicating that examination of two sputum samples is enough among pulmonary TB patients. A third sample is required only as confirmatory if the second sample was positive. Smear microscopy can be substantially simplified with favourable resource implications.

Research Progress of Foreign Direct Investment and Global Value Chain Status

With the rapid development of globalization,the industries of various countries are actively seeking the best way to improve the global value chain(GVC)status while integrating into the world.As an important factor affecting the GVC status,foreign direct investment(FDI)has attracted extensive attention from scholars.On the basis of systematically summarizing the research progress of FDI theory,GVC status and the influence of FDI on GVC status,the paper tries to clarify the internal relationship between FDI and GVC status,explores the shortcomings of existing research,and puts forward the possible direction of future research.

Importance Analysis of a Multi-state System Based on Direct Partial Logic Derivatives and Multi-valued Decision Diagrams

Importance analysis quantifies the critical degree of individual component. Compared with the traditional binary state system,importance analysis of the multi-state system is more aligned with the practice. Because the multi-valued decision diagram( MDD) can reflect the relationship between the components and the system state bilaterally, it was introduced into the reliability calculation of the multi-state system( MSS). The building method,simplified criteria,and path search and probability algorithm of MSS structure function MDD were given,and the reliability of the system was calculated. The computing methods of importance based on MDD and direct partial logic derivatives( DPLD) were presented. The diesel engine fuel supply system was taken as an example to illustrate the proposed method. The results show that not only the probability of the system in each state can be easily obtained,but also the influence degree of each component and its state on the system reliability can be obtained,which is conducive to the condition monitoring and structure optimization of the system.

Value of direct vision internal urethrotomy in treatment of urethral stricture-twenty-year clinical experience

Objective To summarize the experience and evaluate the efficacy of treatment of urethral stricture using direct visual internal urethrotomy ( DVIU) . Methods The clinical data of 361 patients ( age range 16 - 72 years, mean age 38 years) with urethral stricture who underwent urethrotomy from 1990 to 2010 was retrospectively ana-

聚焦直接证据的美国本科学生学习成果评估——以美国大学联合会“VALUE项目”为例

"本科学生学习有效评估项目"是近十年美国学生学习成果评估项目的典型代表,在其项目设置上体现了聚焦学生学习质量直接证据的评估理念、不依赖标准化测试的全国性本科学生学习评估的发展定位、凸显学习成果核心特征的关键性评估标准、方法论与实际教学严谨平衡的评估方法、指向改进学生学习的多环节流程等特点。回顾十年发展,该项目历经三个重要阶段,已从一种"另类"的实践转变为主流的实践。项目之所以成功,除聚焦直接证据的特点之外,国家、州及院校将建立多州合作战略整合进项目的发展逻辑发挥着至关重要的作用。

The Deficiency and Nevanlinna Direction of the Meromorphic Functions *L

Aim To study the value distribution of meromorphic functions in angular domains, the deficiency, the deficient value, the Nevanlinna direction and other singular directions. Methods A fundamental inequality of Nevanlinna characteristic functions in the angular domain was used, which is similar with the Nevanlinna secondary fundamental theorem. Results The deficiency and deficient value of meromorphic functions about an angular domain and a direction were defined. The definition of Nevanlinna direction was improved. Conclusion For a family of meromorphic functions, it is proved that the number of deficient values is at most countable and the sum of deficiencies isnt greater than 2. The existence of the Nevanlinna direction is obtained. The existence of Borel and Julia directions and the relation between them are found.

ON THE EXISTENCE OF SINGULAR DIRECTIONS OF HOLOMORPHIC MAPS FROM THE UNIT DISK INTO P^n(C)

This article proves the existence of Julia directions of value distribution of holomorphic mapping f from the unit disk into the n-dimensional complex projective spacePn（C） under the assumption limsupT（r,f）/log 1/1-r = ＋∞ for hypersurfaces in general position. A heuristic principle concerning the existence of Julia directions of holomorphic mappings from the unit disk into Pn（C） is given also.

New model for deducing directional extrema based on multivariate extremum statistical theory

The parameters of principal and directional extrema in a marine environment are important in marine engineering design, especially for appropriate construction of oceanic platforms and other structures. When designing wave walls and break water structures, the orientation of the breakwater or seawall depends mainly on the direction of the strongest waves. However, the strength of the breakwater and the elevation of the seawall depend on the magnitude of the biggest wave height of the strongest waves. Thus, identification of directional extrema plays an important role in the design of wave factors. When calculating the directional extremum, different materials may require different specific computational methods, yet few theoretical studies have been conducted in this field of research. Based on multivariate extremnm statistical theory, this paper utilizes a discrete random variable to build a joint probability model compounded by a discrete random variable and a multivariate continuous random variable. Furthermore, this paper provides the first investigation on the theories and methodologies to deduce wave directional extrema. The results provide tools for both creating the calculation method of the directional extremum value and providing the rational directional extremum parameters for marine engineering design.

UNIQUENESS OF MEROMORPHIC FUNCTIONS WHOSE NONLINEAR DIFFERENTIAL POLYNOMIALS SHARE ONE VALUE OR HAVE THE SAME FIXED POINTS IN AN ANGULAR DOMAIN

In this article, we study the uniqueness question of nonconstant meromorphic functions whose nonlinear differential polynomials share 1 or have the same fixed points in an angular domain. The results in this article improve Theorem 1 of Yang and Hua [26], and improve Theorem 1 of Fang and Qiu [6].

Loss of Ecological Value in Farmland during Farmland Conversion:A Case Study of Shaanxi Province

We divide the ecological functions of farmland into five types: soil conservation, water conservation, air purification, maintenance of biological diversity, entertainment and culture. Using the direct method of market evaluation, we establish the assessment model, to calculate the ecological service value of various functions, respectively, and then calculate the total loss of ecological value in farmland. Taking the case of Shaanxi Province, we calculate the total loss of ecological value in farmland in Shaanxi Province during the period 2000-2009 at 6 366.365 3 million yuan. Finally in order to rationally protect farmland, we put forth the following recommendations: correctly understanding the ecological benefit of farmland, and scientifically assessing the value of farmland; optimizing the industrial structure, and promoting intensive use of farmland; taking actions that suit local circumstances, and conducting rational planning of farmland use; strengthening multilateral cooperation, and establishing the common protection accountability mechanism of farmland.