Dam choices: Analyses for multiple needs

نویسندگان

چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Dam choices: analyses for multiple needs.

E nvironmentalists often go to great lengths to block the construction of new dams because dams interfere with fish migration, inundate terrestrial habitats, and interrupt natural flows that are necessary for critical ecosystem processes. However, few environmental issues are so simplistically black and white, and dams are no exception. Dams can be an important source of clean energy and for po...

متن کامل

multiple-choice listening tests: spoken choices or written choices?

listening skill and speaking skill, according language didactics, have close interaction in lingual communications. therefore, measuring listening comprehension without considering other language skills seems to be difficult. the present study is an effort to compare the effectiveness of oral and written multiple-choice listening tests for persian language learners. in fact, this study answers ...

متن کامل

Harmony Search for Multiple Dam Scheduling

The dam is the wall that holds the water in, and the operation of multiple dams is complicated decisionmaking process as an optimization problem (Oliveira & Loucks, 1997). Traditionally researchers have used mathematical optimization techniques with linear programming (LP) or dynamic programming (DP) formulation to find the schedule. However, most of the mathematical models are valid only for s...

متن کامل

Multiple Choices

The generation of memory T cells in immune responses has been extensively studied over recent years, yet the requirements for production and persistence of a functional memory pool are still unclear. For example, while there is compelling evidence that survival of memory cells does not require TCR–MHC engagements (1, 2), recent evidence indicates that such interactions may be needed to maintain...

متن کامل

Addressees' needs influence speakers' early syntactic choices.

A current debate in psycholinguistics concerns how speakers take addressees' knowledge or needs into account during the packaging of utterances. In retelling stories, speakers are more likely to mention atypical instruments than easily inferrable, typical instruments; in a seminal study, Brown and Dell (1987) suggested that this is not an adjustment to addressees but is simply easiest for speak...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Proceedings of the National Academy of Sciences

سال: 2012

ISSN: 0027-8424,1091-6490

DOI: 10.1073/pnas.1203263109