MA’RUZALARNING QISQACHA MAZMUNI BİLDİRİ ÖZETLERİ KİTABI BO‘LG‘USI MATEMATIKA O‘QITUVCHILARINING MATEMATIK KOMPETENSIYALARI VA ULARGA MOS TASHXISLOVCHI MASALALAR TIZIMI HAQIDA Turgunbayev Riskeldi Musamatovich, professor, f.-m.f.n., professor Rajabov Ulug‘bek Tuychiyevich , Nizomiy nomidagi TDPU Qisqacha mazmuni: Maqolada bo‘lg‘usi matematika o‘qituvchilarining
matematik kompetensiyalari “tushunish”, “bilish”, “uddalash” kategoriyalari
yordamida tavsiflanadi va ularga mos tashxislovchi masalalar tizimi bayon qilinadi.
Kalit so‘zlar: matematik kompetensiya, tashxis, tashxislovchi masala,
funksiya, funksiyaning limiti
Abstract: In the article, the mathematical competencies of future mathematics
teachers are described using the categories “understanding”, “knowing”, “doing”
and the system of diagnostic problems corresponding to them is described.
Keywords: mathematical competence, diagnosis, diagnostic problem,
function, limit of function
SUYUQ FAZADA O‘STIRILGAN pSi-n(Si 2 ) 1-x (CdS) x TUZILMANING ELEKTROFIZIK VA FOTOELEKTRIK XOSSALARI A.S. SAIDOV, Fiziko-Texnika ilmiy-tadqiqot instituti O‘zFA Tashkent sh, K.G. Gaymnazarov, Sh.A. Ashirov, G.B.Saparova, Guliston Davlat Universiteti Gulistan sh. Qisqacha mazmuni: Har xil temperaturada pSi-n(Si
2
)
1-x
(CdS)
x
strukturalarining voltamper xarakteristikalari tekshirildi. Bunday strukturalarning
voltamper xarakteristikalari kuchlanish bo‘yicha tokning oshishi
V ≈
V 0 ⋅exp (
JaW )
subchiziqli qismga ega ekanligi qayd etildi. Tajriba natijalari injektsion kamayish
effekti nazariyasi asosida tushuntirildi. CdS kiritmalari mavjud bo‘lgan namunalarda
spektrning qisqa to‘lqinli soxasida fotonlar energiyasining E
ph ≥ 2,2 eV qiymatlarida
fotosezgirlikning ko‘tarilishi kuzatildi. Bu holat
CdS izovalent kiritmalariga
fotovoltaik effektning ta’siri bilan vujudga kelishi ko‘rsatilgan.
Kalit so‘zlar: qattiq qorishma, eruvchanlik, to‘yingan qorishma, tuzilma,
kristallanish, suyuq fazali epitaksiya, epitaksial qatlam, kremniy.
Abstract: Current-voltage characteristics of pSi-n(Si
2
)
1-x
(CdS)
x
– structures
have been researched at different temperatures. It has been come out that current-
voltage characteristics of these structures have plot of type
V ≈
V 0 ⋅exp (
JaW ) with
sublinear increasing current from voltage. That can be explained by theory of
