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खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता विषय पर विशेषज्ञों का मंथन

खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता  विषय पर विशेषज्ञों का मंथन पर्यावरणीय स्थिरता मानव समाज के निरन्तर अस्तित्व, समृद्धि और स्वास्थ्य के लिए मूलभूत शर्त है। हमारी न्यू जनरेशन को स्पीड और टेक्नोलॉजी पर ध्यान केंद्रित करना होगा ताकि भविष्य को सुनहरा बनाया जा सके। उक्त विचार मुख्य अतिथि श्री एमपी सिंह, प्रधान मुख्य अभियंता, केंद्रीय विद्युत प्राधिकरण विद्युत मंत्रालय भारत सरकार, नई दिल्ली ने व्यक्त किए श्री सिंह भूपाल नोबल्स स्नातकोत्तर महाविद्यालय में भूविज्ञान विभाग द्वारा "खनन और खनिज उद्योगों में पर्यावरणीय स्थिरता" विषय पर आयोजित दो दिवसीय राष्ट्रीय कॉन्फ्रेंस के समापन पर बोल रहे थे। दो दिवसीय राष्ट्रीय कान्फ्रेंस का भव्य समापन सम्मानित अतिथि प्रो विनोद अग्रवाल सदस्य, भारत सरकार नई दिल्ली स्थित MOEFCC की विशेषज्ञ मूल्यांकन समिति, (सि एण्ड टीपी) अपने उद्बोधन में कहा कि पर्यावरण स्थिरता सरकार और समाज दोनों की जिम्मेदारी है। वर्तमान में खनन उद्योग विभिन्न प्रावधानों एवं कानूनों के तहत कार्य कर रहा है ताकि पर्यावरण को सुरक्षित रखा जा सके। आयोजन सचिव डॉ. हेमंत सेन न...
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Concept of potential well | Oscillations and Waves

 Equilibrium and concept of potential well

  • In all conservative field, potential energy U = U (x, y, z)
  • Since force
                        
    • If particle moves only along x-axis, then force Fx = - (∂U/∂x)
    • Similarly Fy = - (∂U/∂y) and Fz = - (∂U/∂z)
    • Force = slope of tangent at any point of the curve
    • Since the tangent at P, Q, R and S are parallel to x-axis
      • These positions are known as equilibrium positions.
      • If a particle is slightly displaced from stable equilibrium position P, then it starts to oscillate between points A and B until it crosses point B.
      • P is the position having minimum potential energy and is called stable equilibrium.
      • The region of minimum potential energy bounded between points A and B is called  potential well .
      • The difference between the maximum and minimum potential energy of a potential well is called the  binding energy of potential well.
      • If the energy of particle is less than the B.E. of well, then it is always bound in the potential well and such state is called  bound state .
      • Let a particle be slightly displaced from its mean position P = (x = x0) then from Taylor sereis expansion, its potential energy at any point x
      • For stable equilibrium position P
      • If P lies at origin i.e., x0 = 0 and U(x0) = 0
      • For small displacement x3 → 0, x4 → 0, ...
                          
                              
            • In this position a curve between displacement and potential energy will be a  parabola and F ∝ x
            • Therefore the motion of particle in a parabolic potential well is always oscillatory and is simple harmonic .

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